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git-svn: memoize conversion of SVN merge ticket info to git commit ranges
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1 #!/usr/bin/env perl
2 # Copyright (C) 2006, Eric Wong <normalperson@yhbt.net>
3 # License: GPL v2 or later
4 use warnings;
5 use strict;
6 use vars qw/ $AUTHOR $VERSION
7 $sha1 $sha1_short $_revision $_repository
8 $_q $_authors $_authors_prog %users/;
9 $AUTHOR = 'Eric Wong <normalperson@yhbt.net>';
10 $VERSION = '@@GIT_VERSION@@';
11
12 # From which subdir have we been invoked?
13 my $cmd_dir_prefix = eval {
14 command_oneline([qw/rev-parse --show-prefix/], STDERR => 0)
15 } || '';
16
17 my $git_dir_user_set = 1 if defined $ENV{GIT_DIR};
18 $ENV{GIT_DIR} ||= '.git';
19 $Git::SVN::default_repo_id = 'svn';
20 $Git::SVN::default_ref_id = $ENV{GIT_SVN_ID} || 'git-svn';
21 $Git::SVN::Ra::_log_window_size = 100;
22 $Git::SVN::_minimize_url = 'unset';
23
24 if (! exists $ENV{SVN_SSH}) {
25 if (exists $ENV{GIT_SSH}) {
26 $ENV{SVN_SSH} = $ENV{GIT_SSH};
27 if ($^O eq 'msys') {
28 $ENV{SVN_SSH} =~ s/\\/\\\\/g;
29 }
30 }
31 }
32
33 $Git::SVN::Log::TZ = $ENV{TZ};
34 $ENV{TZ} = 'UTC';
35 $| = 1; # unbuffer STDOUT
36
37 sub fatal (@) { print STDERR "@_\n"; exit 1 }
38 require SVN::Core; # use()-ing this causes segfaults for me... *shrug*
39 require SVN::Ra;
40 require SVN::Delta;
41 if ($SVN::Core::VERSION lt '1.1.0') {
42 fatal "Need SVN::Core 1.1.0 or better (got $SVN::Core::VERSION)";
43 }
44 my $can_compress = eval { require Compress::Zlib; 1};
45 push @Git::SVN::Ra::ISA, 'SVN::Ra';
46 push @SVN::Git::Editor::ISA, 'SVN::Delta::Editor';
47 push @SVN::Git::Fetcher::ISA, 'SVN::Delta::Editor';
48 use Carp qw/croak/;
49 use Digest::MD5;
50 use IO::File qw//;
51 use File::Basename qw/dirname basename/;
52 use File::Path qw/mkpath/;
53 use File::Spec;
54 use File::Find;
55 use Getopt::Long qw/:config gnu_getopt no_ignore_case auto_abbrev/;
56 use IPC::Open3;
57 use Git;
58
59 BEGIN {
60 # import functions from Git into our packages, en masse
61 no strict 'refs';
62 foreach (qw/command command_oneline command_noisy command_output_pipe
63 command_input_pipe command_close_pipe
64 command_bidi_pipe command_close_bidi_pipe/) {
65 for my $package ( qw(SVN::Git::Editor SVN::Git::Fetcher
66 Git::SVN::Migration Git::SVN::Log Git::SVN),
67 __PACKAGE__) {
68 *{"${package}::$_"} = \&{"Git::$_"};
69 }
70 }
71 }
72
73 my ($SVN);
74
75 $sha1 = qr/[a-f\d]{40}/;
76 $sha1_short = qr/[a-f\d]{4,40}/;
77 my ($_stdin, $_help, $_edit,
78 $_message, $_file, $_branch_dest,
79 $_template, $_shared,
80 $_version, $_fetch_all, $_no_rebase, $_fetch_parent,
81 $_merge, $_strategy, $_dry_run, $_local,
82 $_prefix, $_no_checkout, $_url, $_verbose,
83 $_git_format, $_commit_url, $_tag);
84 $Git::SVN::_follow_parent = 1;
85 $_q ||= 0;
86 my %remote_opts = ( 'username=s' => \$Git::SVN::Prompt::_username,
87 'config-dir=s' => \$Git::SVN::Ra::config_dir,
88 'no-auth-cache' => \$Git::SVN::Prompt::_no_auth_cache,
89 'ignore-paths=s' => \$SVN::Git::Fetcher::_ignore_regex );
90 my %fc_opts = ( 'follow-parent|follow!' => \$Git::SVN::_follow_parent,
91 'authors-file|A=s' => \$_authors,
92 'authors-prog=s' => \$_authors_prog,
93 'repack:i' => \$Git::SVN::_repack,
94 'noMetadata' => \$Git::SVN::_no_metadata,
95 'useSvmProps' => \$Git::SVN::_use_svm_props,
96 'useSvnsyncProps' => \$Git::SVN::_use_svnsync_props,
97 'log-window-size=i' => \$Git::SVN::Ra::_log_window_size,
98 'no-checkout' => \$_no_checkout,
99 'quiet|q+' => \$_q,
100 'repack-flags|repack-args|repack-opts=s' =>
101 \$Git::SVN::_repack_flags,
102 'use-log-author' => \$Git::SVN::_use_log_author,
103 'add-author-from' => \$Git::SVN::_add_author_from,
104 'localtime' => \$Git::SVN::_localtime,
105 %remote_opts );
106
107 my ($_trunk, @_tags, @_branches, $_stdlayout);
108 my %icv;
109 my %init_opts = ( 'template=s' => \$_template, 'shared:s' => \$_shared,
110 'trunk|T=s' => \$_trunk, 'tags|t=s@' => \@_tags,
111 'branches|b=s@' => \@_branches, 'prefix=s' => \$_prefix,
112 'stdlayout|s' => \$_stdlayout,
113 'minimize-url|m!' => \$Git::SVN::_minimize_url,
114 'no-metadata' => sub { $icv{noMetadata} = 1 },
115 'use-svm-props' => sub { $icv{useSvmProps} = 1 },
116 'use-svnsync-props' => sub { $icv{useSvnsyncProps} = 1 },
117 'rewrite-root=s' => sub { $icv{rewriteRoot} = $_[1] },
118 %remote_opts );
119 my %cmt_opts = ( 'edit|e' => \$_edit,
120 'rmdir' => \$SVN::Git::Editor::_rmdir,
121 'find-copies-harder' => \$SVN::Git::Editor::_find_copies_harder,
122 'l=i' => \$SVN::Git::Editor::_rename_limit,
123 'copy-similarity|C=i'=> \$SVN::Git::Editor::_cp_similarity
124 );
125
126 my %cmd = (
127 fetch => [ \&cmd_fetch, "Download new revisions from SVN",
128 { 'revision|r=s' => \$_revision,
129 'fetch-all|all' => \$_fetch_all,
130 'parent|p' => \$_fetch_parent,
131 %fc_opts } ],
132 clone => [ \&cmd_clone, "Initialize and fetch revisions",
133 { 'revision|r=s' => \$_revision,
134 %fc_opts, %init_opts } ],
135 init => [ \&cmd_init, "Initialize a repo for tracking" .
136 " (requires URL argument)",
137 \%init_opts ],
138 'multi-init' => [ \&cmd_multi_init,
139 "Deprecated alias for ".
140 "'$0 init -T<trunk> -b<branches> -t<tags>'",
141 \%init_opts ],
142 dcommit => [ \&cmd_dcommit,
143 'Commit several diffs to merge with upstream',
144 { 'merge|m|M' => \$_merge,
145 'strategy|s=s' => \$_strategy,
146 'verbose|v' => \$_verbose,
147 'dry-run|n' => \$_dry_run,
148 'fetch-all|all' => \$_fetch_all,
149 'commit-url=s' => \$_commit_url,
150 'revision|r=i' => \$_revision,
151 'no-rebase' => \$_no_rebase,
152 %cmt_opts, %fc_opts } ],
153 branch => [ \&cmd_branch,
154 'Create a branch in the SVN repository',
155 { 'message|m=s' => \$_message,
156 'destination|d=s' => \$_branch_dest,
157 'dry-run|n' => \$_dry_run,
158 'tag|t' => \$_tag } ],
159 tag => [ sub { $_tag = 1; cmd_branch(@_) },
160 'Create a tag in the SVN repository',
161 { 'message|m=s' => \$_message,
162 'destination|d=s' => \$_branch_dest,
163 'dry-run|n' => \$_dry_run } ],
164 'set-tree' => [ \&cmd_set_tree,
165 "Set an SVN repository to a git tree-ish",
166 { 'stdin' => \$_stdin, %cmt_opts, %fc_opts, } ],
167 'create-ignore' => [ \&cmd_create_ignore,
168 'Create a .gitignore per svn:ignore',
169 { 'revision|r=i' => \$_revision
170 } ],
171 'mkdirs' => [ \&cmd_mkdirs ,
172 "recreate empty directories after a checkout",
173 { 'revision|r=i' => \$_revision } ],
174 'propget' => [ \&cmd_propget,
175 'Print the value of a property on a file or directory',
176 { 'revision|r=i' => \$_revision } ],
177 'proplist' => [ \&cmd_proplist,
178 'List all properties of a file or directory',
179 { 'revision|r=i' => \$_revision } ],
180 'show-ignore' => [ \&cmd_show_ignore, "Show svn:ignore listings",
181 { 'revision|r=i' => \$_revision
182 } ],
183 'show-externals' => [ \&cmd_show_externals, "Show svn:externals listings",
184 { 'revision|r=i' => \$_revision
185 } ],
186 'multi-fetch' => [ \&cmd_multi_fetch,
187 "Deprecated alias for $0 fetch --all",
188 { 'revision|r=s' => \$_revision, %fc_opts } ],
189 'migrate' => [ sub { },
190 # no-op, we automatically run this anyways,
191 'Migrate configuration/metadata/layout from
192 previous versions of git-svn',
193 { 'minimize' => \$Git::SVN::Migration::_minimize,
194 %remote_opts } ],
195 'log' => [ \&Git::SVN::Log::cmd_show_log, 'Show commit logs',
196 { 'limit=i' => \$Git::SVN::Log::limit,
197 'revision|r=s' => \$_revision,
198 'verbose|v' => \$Git::SVN::Log::verbose,
199 'incremental' => \$Git::SVN::Log::incremental,
200 'oneline' => \$Git::SVN::Log::oneline,
201 'show-commit' => \$Git::SVN::Log::show_commit,
202 'non-recursive' => \$Git::SVN::Log::non_recursive,
203 'authors-file|A=s' => \$_authors,
204 'color' => \$Git::SVN::Log::color,
205 'pager=s' => \$Git::SVN::Log::pager
206 } ],
207 'find-rev' => [ \&cmd_find_rev,
208 "Translate between SVN revision numbers and tree-ish",
209 {} ],
210 'rebase' => [ \&cmd_rebase, "Fetch and rebase your working directory",
211 { 'merge|m|M' => \$_merge,
212 'verbose|v' => \$_verbose,
213 'strategy|s=s' => \$_strategy,
214 'local|l' => \$_local,
215 'fetch-all|all' => \$_fetch_all,
216 'dry-run|n' => \$_dry_run,
217 %fc_opts } ],
218 'commit-diff' => [ \&cmd_commit_diff,
219 'Commit a diff between two trees',
220 { 'message|m=s' => \$_message,
221 'file|F=s' => \$_file,
222 'revision|r=s' => \$_revision,
223 %cmt_opts } ],
224 'info' => [ \&cmd_info,
225 "Show info about the latest SVN revision
226 on the current branch",
227 { 'url' => \$_url, } ],
228 'blame' => [ \&Git::SVN::Log::cmd_blame,
229 "Show what revision and author last modified each line of a file",
230 { 'git-format' => \$_git_format } ],
231 'reset' => [ \&cmd_reset,
232 "Undo fetches back to the specified SVN revision",
233 { 'revision|r=s' => \$_revision,
234 'parent|p' => \$_fetch_parent } ],
235 'gc' => [ \&cmd_gc,
236 "Compress unhandled.log files in .git/svn and remove " .
237 "index files in .git/svn",
238 {} ],
239 );
240
241 my $cmd;
242 for (my $i = 0; $i < @ARGV; $i++) {
243 if (defined $cmd{$ARGV[$i]}) {
244 $cmd = $ARGV[$i];
245 splice @ARGV, $i, 1;
246 last;
247 } elsif ($ARGV[$i] eq 'help') {
248 $cmd = $ARGV[$i+1];
249 usage(0);
250 }
251 };
252
253 # make sure we're always running at the top-level working directory
254 unless ($cmd && $cmd =~ /(?:clone|init|multi-init)$/) {
255 unless (-d $ENV{GIT_DIR}) {
256 if ($git_dir_user_set) {
257 die "GIT_DIR=$ENV{GIT_DIR} explicitly set, ",
258 "but it is not a directory\n";
259 }
260 my $git_dir = delete $ENV{GIT_DIR};
261 my $cdup = undef;
262 git_cmd_try {
263 $cdup = command_oneline(qw/rev-parse --show-cdup/);
264 $git_dir = '.' unless ($cdup);
265 chomp $cdup if ($cdup);
266 $cdup = "." unless ($cdup && length $cdup);
267 } "Already at toplevel, but $git_dir not found\n";
268 chdir $cdup or die "Unable to chdir up to '$cdup'\n";
269 unless (-d $git_dir) {
270 die "$git_dir still not found after going to ",
271 "'$cdup'\n";
272 }
273 $ENV{GIT_DIR} = $git_dir;
274 }
275 $_repository = Git->repository(Repository => $ENV{GIT_DIR});
276 }
277
278 my %opts = %{$cmd{$cmd}->[2]} if (defined $cmd);
279
280 read_git_config(\%opts);
281 if ($cmd && ($cmd eq 'log' || $cmd eq 'blame')) {
282 Getopt::Long::Configure('pass_through');
283 }
284 my $rv = GetOptions(%opts, 'help|H|h' => \$_help, 'version|V' => \$_version,
285 'minimize-connections' => \$Git::SVN::Migration::_minimize,
286 'id|i=s' => \$Git::SVN::default_ref_id,
287 'svn-remote|remote|R=s' => sub {
288 $Git::SVN::no_reuse_existing = 1;
289 $Git::SVN::default_repo_id = $_[1] });
290 exit 1 if (!$rv && $cmd && $cmd ne 'log');
291
292 usage(0) if $_help;
293 version() if $_version;
294 usage(1) unless defined $cmd;
295 load_authors() if $_authors;
296 if (defined $_authors_prog) {
297 $_authors_prog = "'" . File::Spec->rel2abs($_authors_prog) . "'";
298 }
299
300 unless ($cmd =~ /^(?:clone|init|multi-init|commit-diff)$/) {
301 Git::SVN::Migration::migration_check();
302 }
303 Git::SVN::init_vars();
304 eval {
305 Git::SVN::verify_remotes_sanity();
306 $cmd{$cmd}->[0]->(@ARGV);
307 };
308 fatal $@ if $@;
309 post_fetch_checkout();
310 exit 0;
311
312 ####################### primary functions ######################
313 sub usage {
314 my $exit = shift || 0;
315 my $fd = $exit ? \*STDERR : \*STDOUT;
316 print $fd <<"";
317 git-svn - bidirectional operations between a single Subversion tree and git
318 Usage: git svn <command> [options] [arguments]\n
319
320 print $fd "Available commands:\n" unless $cmd;
321
322 foreach (sort keys %cmd) {
323 next if $cmd && $cmd ne $_;
324 next if /^multi-/; # don't show deprecated commands
325 print $fd ' ',pack('A17',$_),$cmd{$_}->[1],"\n";
326 foreach (sort keys %{$cmd{$_}->[2]}) {
327 # mixed-case options are for .git/config only
328 next if /[A-Z]/ && /^[a-z]+$/i;
329 # prints out arguments as they should be passed:
330 my $x = s#[:=]s$## ? '<arg>' : s#[:=]i$## ? '<num>' : '';
331 print $fd ' ' x 21, join(', ', map { length $_ > 1 ?
332 "--$_" : "-$_" }
333 split /\|/,$_)," $x\n";
334 }
335 }
336 print $fd <<"";
337 \nGIT_SVN_ID may be set in the environment or via the --id/-i switch to an
338 arbitrary identifier if you're tracking multiple SVN branches/repositories in
339 one git repository and want to keep them separate. See git-svn(1) for more
340 information.
341
342 exit $exit;
343 }
344
345 sub version {
346 print "git-svn version $VERSION (svn $SVN::Core::VERSION)\n";
347 exit 0;
348 }
349
350 sub do_git_init_db {
351 unless (-d $ENV{GIT_DIR}) {
352 my @init_db = ('init');
353 push @init_db, "--template=$_template" if defined $_template;
354 if (defined $_shared) {
355 if ($_shared =~ /[a-z]/) {
356 push @init_db, "--shared=$_shared";
357 } else {
358 push @init_db, "--shared";
359 }
360 }
361 command_noisy(@init_db);
362 $_repository = Git->repository(Repository => ".git");
363 }
364 command_noisy('config', 'core.autocrlf', 'false');
365 my $set;
366 my $pfx = "svn-remote.$Git::SVN::default_repo_id";
367 foreach my $i (keys %icv) {
368 die "'$set' and '$i' cannot both be set\n" if $set;
369 next unless defined $icv{$i};
370 command_noisy('config', "$pfx.$i", $icv{$i});
371 $set = $i;
372 }
373 my $ignore_regex = \$SVN::Git::Fetcher::_ignore_regex;
374 command_noisy('config', "$pfx.ignore-paths", $$ignore_regex)
375 if defined $$ignore_regex;
376 }
377
378 sub init_subdir {
379 my $repo_path = shift or return;
380 mkpath([$repo_path]) unless -d $repo_path;
381 chdir $repo_path or die "Couldn't chdir to $repo_path: $!\n";
382 $ENV{GIT_DIR} = '.git';
383 $_repository = Git->repository(Repository => $ENV{GIT_DIR});
384 }
385
386 sub cmd_clone {
387 my ($url, $path) = @_;
388 if (!defined $path &&
389 (defined $_trunk || @_branches || @_tags ||
390 defined $_stdlayout) &&
391 $url !~ m#^[a-z\+]+://#) {
392 $path = $url;
393 }
394 $path = basename($url) if !defined $path || !length $path;
395 my $authors_absolute = $_authors ? File::Spec->rel2abs($_authors) : "";
396 cmd_init($url, $path);
397 command_oneline('config', 'svn.authorsfile', $authors_absolute)
398 if $_authors;
399 Git::SVN::fetch_all($Git::SVN::default_repo_id);
400 }
401
402 sub cmd_init {
403 if (defined $_stdlayout) {
404 $_trunk = 'trunk' if (!defined $_trunk);
405 @_tags = 'tags' if (! @_tags);
406 @_branches = 'branches' if (! @_branches);
407 }
408 if (defined $_trunk || @_branches || @_tags) {
409 return cmd_multi_init(@_);
410 }
411 my $url = shift or die "SVN repository location required ",
412 "as a command-line argument\n";
413 $url = canonicalize_url($url);
414 init_subdir(@_);
415 do_git_init_db();
416
417 if ($Git::SVN::_minimize_url eq 'unset') {
418 $Git::SVN::_minimize_url = 0;
419 }
420
421 Git::SVN->init($url);
422 }
423
424 sub cmd_fetch {
425 if (grep /^\d+=./, @_) {
426 die "'<rev>=<commit>' fetch arguments are ",
427 "no longer supported.\n";
428 }
429 my ($remote) = @_;
430 if (@_ > 1) {
431 die "Usage: $0 fetch [--all] [--parent] [svn-remote]\n";
432 }
433 $Git::SVN::no_reuse_existing = undef;
434 if ($_fetch_parent) {
435 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
436 unless ($gs) {
437 die "Unable to determine upstream SVN information from ",
438 "working tree history\n";
439 }
440 # just fetch, don't checkout.
441 $_no_checkout = 'true';
442 $_fetch_all ? $gs->fetch_all : $gs->fetch;
443 } elsif ($_fetch_all) {
444 cmd_multi_fetch();
445 } else {
446 $remote ||= $Git::SVN::default_repo_id;
447 Git::SVN::fetch_all($remote, Git::SVN::read_all_remotes());
448 }
449 }
450
451 sub cmd_set_tree {
452 my (@commits) = @_;
453 if ($_stdin || !@commits) {
454 print "Reading from stdin...\n";
455 @commits = ();
456 while (<STDIN>) {
457 if (/\b($sha1_short)\b/o) {
458 unshift @commits, $1;
459 }
460 }
461 }
462 my @revs;
463 foreach my $c (@commits) {
464 my @tmp = command('rev-parse',$c);
465 if (scalar @tmp == 1) {
466 push @revs, $tmp[0];
467 } elsif (scalar @tmp > 1) {
468 push @revs, reverse(command('rev-list',@tmp));
469 } else {
470 fatal "Failed to rev-parse $c";
471 }
472 }
473 my $gs = Git::SVN->new;
474 my ($r_last, $cmt_last) = $gs->last_rev_commit;
475 $gs->fetch;
476 if (defined $gs->{last_rev} && $r_last != $gs->{last_rev}) {
477 fatal "There are new revisions that were fetched ",
478 "and need to be merged (or acknowledged) ",
479 "before committing.\nlast rev: $r_last\n",
480 " current: $gs->{last_rev}";
481 }
482 $gs->set_tree($_) foreach @revs;
483 print "Done committing ",scalar @revs," revisions to SVN\n";
484 unlink $gs->{index};
485 }
486
487 sub cmd_dcommit {
488 my $head = shift;
489 git_cmd_try { command_oneline(qw/diff-index --quiet HEAD/) }
490 'Cannot dcommit with a dirty index. Commit your changes first, '
491 . "or stash them with `git stash'.\n";
492 $head ||= 'HEAD';
493
494 my $old_head;
495 if ($head ne 'HEAD') {
496 $old_head = eval {
497 command_oneline([qw/symbolic-ref -q HEAD/])
498 };
499 if ($old_head) {
500 $old_head =~ s{^refs/heads/}{};
501 } else {
502 $old_head = eval { command_oneline(qw/rev-parse HEAD/) };
503 }
504 command(['checkout', $head], STDERR => 0);
505 }
506
507 my @refs;
508 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD', \@refs);
509 unless ($gs) {
510 die "Unable to determine upstream SVN information from ",
511 "$head history.\nPerhaps the repository is empty.";
512 }
513
514 if (defined $_commit_url) {
515 $url = $_commit_url;
516 } else {
517 $url = eval { command_oneline('config', '--get',
518 "svn-remote.$gs->{repo_id}.commiturl") };
519 if (!$url) {
520 $url = $gs->full_url
521 }
522 }
523
524 my $last_rev = $_revision if defined $_revision;
525 if ($url) {
526 print "Committing to $url ...\n";
527 }
528 my ($linear_refs, $parents) = linearize_history($gs, \@refs);
529 if ($_no_rebase && scalar(@$linear_refs) > 1) {
530 warn "Attempting to commit more than one change while ",
531 "--no-rebase is enabled.\n",
532 "If these changes depend on each other, re-running ",
533 "without --no-rebase may be required."
534 }
535 my $expect_url = $url;
536 Git::SVN::remove_username($expect_url);
537 while (1) {
538 my $d = shift @$linear_refs or last;
539 unless (defined $last_rev) {
540 (undef, $last_rev, undef) = cmt_metadata("$d~1");
541 unless (defined $last_rev) {
542 fatal "Unable to extract revision information ",
543 "from commit $d~1";
544 }
545 }
546 if ($_dry_run) {
547 print "diff-tree $d~1 $d\n";
548 } else {
549 my $cmt_rev;
550 my %ed_opts = ( r => $last_rev,
551 log => get_commit_entry($d)->{log},
552 ra => Git::SVN::Ra->new($url),
553 config => SVN::Core::config_get_config(
554 $Git::SVN::Ra::config_dir
555 ),
556 tree_a => "$d~1",
557 tree_b => $d,
558 editor_cb => sub {
559 print "Committed r$_[0]\n";
560 $cmt_rev = $_[0];
561 },
562 svn_path => '');
563 if (!SVN::Git::Editor->new(\%ed_opts)->apply_diff) {
564 print "No changes\n$d~1 == $d\n";
565 } elsif ($parents->{$d} && @{$parents->{$d}}) {
566 $gs->{inject_parents_dcommit}->{$cmt_rev} =
567 $parents->{$d};
568 }
569 $_fetch_all ? $gs->fetch_all : $gs->fetch;
570 $last_rev = $cmt_rev;
571 next if $_no_rebase;
572
573 # we always want to rebase against the current HEAD,
574 # not any head that was passed to us
575 my @diff = command('diff-tree', $d,
576 $gs->refname, '--');
577 my @finish;
578 if (@diff) {
579 @finish = rebase_cmd();
580 print STDERR "W: $d and ", $gs->refname,
581 " differ, using @finish:\n",
582 join("\n", @diff), "\n";
583 } else {
584 print "No changes between current HEAD and ",
585 $gs->refname,
586 "\nResetting to the latest ",
587 $gs->refname, "\n";
588 @finish = qw/reset --mixed/;
589 }
590 command_noisy(@finish, $gs->refname);
591 if (@diff) {
592 @refs = ();
593 my ($url_, $rev_, $uuid_, $gs_) =
594 working_head_info('HEAD', \@refs);
595 my ($linear_refs_, $parents_) =
596 linearize_history($gs_, \@refs);
597 if (scalar(@$linear_refs) !=
598 scalar(@$linear_refs_)) {
599 fatal "# of revisions changed ",
600 "\nbefore:\n",
601 join("\n", @$linear_refs),
602 "\n\nafter:\n",
603 join("\n", @$linear_refs_), "\n",
604 'If you are attempting to commit ',
605 "merges, try running:\n\t",
606 'git rebase --interactive',
607 '--preserve-merges ',
608 $gs->refname,
609 "\nBefore dcommitting";
610 }
611 if ($url_ ne $expect_url) {
612 if ($url_ eq $gs->metadata_url) {
613 print
614 "Accepting rewritten URL:",
615 " $url_\n";
616 } else {
617 fatal
618 "URL mismatch after rebase:",
619 " $url_ != $expect_url";
620 }
621 }
622 if ($uuid_ ne $uuid) {
623 fatal "uuid mismatch after rebase: ",
624 "$uuid_ != $uuid";
625 }
626 # remap parents
627 my (%p, @l, $i);
628 for ($i = 0; $i < scalar @$linear_refs; $i++) {
629 my $new = $linear_refs_->[$i] or next;
630 $p{$new} =
631 $parents->{$linear_refs->[$i]};
632 push @l, $new;
633 }
634 $parents = \%p;
635 $linear_refs = \@l;
636 }
637 }
638 }
639
640 if ($old_head) {
641 my $new_head = command_oneline(qw/rev-parse HEAD/);
642 my $new_is_symbolic = eval {
643 command_oneline(qw/symbolic-ref -q HEAD/);
644 };
645 if ($new_is_symbolic) {
646 print "dcommitted the branch ", $head, "\n";
647 } else {
648 print "dcommitted on a detached HEAD because you gave ",
649 "a revision argument.\n",
650 "The rewritten commit is: ", $new_head, "\n";
651 }
652 command(['checkout', $old_head], STDERR => 0);
653 }
654
655 unlink $gs->{index};
656 }
657
658 sub cmd_branch {
659 my ($branch_name, $head) = @_;
660
661 unless (defined $branch_name && length $branch_name) {
662 die(($_tag ? "tag" : "branch") . " name required\n");
663 }
664 $head ||= 'HEAD';
665
666 my ($src, $rev, undef, $gs) = working_head_info($head);
667
668 my $remote = Git::SVN::read_all_remotes()->{$gs->{repo_id}};
669 my $allglobs = $remote->{ $_tag ? 'tags' : 'branches' };
670 my $glob;
671 if ($#{$allglobs} == 0) {
672 $glob = $allglobs->[0];
673 } else {
674 unless(defined $_branch_dest) {
675 die "Multiple ",
676 $_tag ? "tag" : "branch",
677 " paths defined for Subversion repository.\n",
678 "You must specify where you want to create the ",
679 $_tag ? "tag" : "branch",
680 " with the --destination argument.\n";
681 }
682 foreach my $g (@{$allglobs}) {
683 # SVN::Git::Editor could probably be moved to Git.pm..
684 my $re = SVN::Git::Editor::glob2pat($g->{path}->{left});
685 if ($_branch_dest =~ /$re/) {
686 $glob = $g;
687 last;
688 }
689 }
690 unless (defined $glob) {
691 my $dest_re = qr/\b\Q$_branch_dest\E\b/;
692 foreach my $g (@{$allglobs}) {
693 $g->{path}->{left} =~ /$dest_re/ or next;
694 if (defined $glob) {
695 die "Ambiguous destination: ",
696 $_branch_dest, "\nmatches both '",
697 $glob->{path}->{left}, "' and '",
698 $g->{path}->{left}, "'\n";
699 }
700 $glob = $g;
701 }
702 unless (defined $glob) {
703 die "Unknown ",
704 $_tag ? "tag" : "branch",
705 " destination $_branch_dest\n";
706 }
707 }
708 }
709 my ($lft, $rgt) = @{ $glob->{path} }{qw/left right/};
710 my $dst = join '/', $remote->{url}, $lft, $branch_name, ($rgt || ());
711
712 my $ctx = SVN::Client->new(
713 auth => Git::SVN::Ra::_auth_providers(),
714 log_msg => sub {
715 ${ $_[0] } = defined $_message
716 ? $_message
717 : 'Create ' . ($_tag ? 'tag ' : 'branch ' )
718 . $branch_name;
719 },
720 );
721
722 eval {
723 $ctx->ls($dst, 'HEAD', 0);
724 } and die "branch ${branch_name} already exists\n";
725
726 print "Copying ${src} at r${rev} to ${dst}...\n";
727 $ctx->copy($src, $rev, $dst)
728 unless $_dry_run;
729
730 $gs->fetch_all;
731 }
732
733 sub cmd_find_rev {
734 my $revision_or_hash = shift or die "SVN or git revision required ",
735 "as a command-line argument\n";
736 my $result;
737 if ($revision_or_hash =~ /^r\d+$/) {
738 my $head = shift;
739 $head ||= 'HEAD';
740 my @refs;
741 my (undef, undef, $uuid, $gs) = working_head_info($head, \@refs);
742 unless ($gs) {
743 die "Unable to determine upstream SVN information from ",
744 "$head history\n";
745 }
746 my $desired_revision = substr($revision_or_hash, 1);
747 $result = $gs->rev_map_get($desired_revision, $uuid);
748 } else {
749 my (undef, $rev, undef) = cmt_metadata($revision_or_hash);
750 $result = $rev;
751 }
752 print "$result\n" if $result;
753 }
754
755 sub cmd_rebase {
756 command_noisy(qw/update-index --refresh/);
757 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
758 unless ($gs) {
759 die "Unable to determine upstream SVN information from ",
760 "working tree history\n";
761 }
762 if ($_dry_run) {
763 print "Remote Branch: " . $gs->refname . "\n";
764 print "SVN URL: " . $url . "\n";
765 return;
766 }
767 if (command(qw/diff-index HEAD --/)) {
768 print STDERR "Cannot rebase with uncommited changes:\n";
769 command_noisy('status');
770 exit 1;
771 }
772 unless ($_local) {
773 # rebase will checkout for us, so no need to do it explicitly
774 $_no_checkout = 'true';
775 $_fetch_all ? $gs->fetch_all : $gs->fetch;
776 }
777 command_noisy(rebase_cmd(), $gs->refname);
778 $gs->mkemptydirs;
779 }
780
781 sub cmd_show_ignore {
782 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
783 $gs ||= Git::SVN->new;
784 my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum);
785 $gs->prop_walk($gs->{path}, $r, sub {
786 my ($gs, $path, $props) = @_;
787 print STDOUT "\n# $path\n";
788 my $s = $props->{'svn:ignore'} or return;
789 $s =~ s/[\r\n]+/\n/g;
790 $s =~ s/^\n+//;
791 chomp $s;
792 $s =~ s#^#$path#gm;
793 print STDOUT "$s\n";
794 });
795 }
796
797 sub cmd_show_externals {
798 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
799 $gs ||= Git::SVN->new;
800 my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum);
801 $gs->prop_walk($gs->{path}, $r, sub {
802 my ($gs, $path, $props) = @_;
803 print STDOUT "\n# $path\n";
804 my $s = $props->{'svn:externals'} or return;
805 $s =~ s/[\r\n]+/\n/g;
806 chomp $s;
807 $s =~ s#^#$path#gm;
808 print STDOUT "$s\n";
809 });
810 }
811
812 sub cmd_create_ignore {
813 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
814 $gs ||= Git::SVN->new;
815 my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum);
816 $gs->prop_walk($gs->{path}, $r, sub {
817 my ($gs, $path, $props) = @_;
818 # $path is of the form /path/to/dir/
819 $path = '.' . $path;
820 # SVN can have attributes on empty directories,
821 # which git won't track
822 mkpath([$path]) unless -d $path;
823 my $ignore = $path . '.gitignore';
824 my $s = $props->{'svn:ignore'} or return;
825 open(GITIGNORE, '>', $ignore)
826 or fatal("Failed to open `$ignore' for writing: $!");
827 $s =~ s/[\r\n]+/\n/g;
828 $s =~ s/^\n+//;
829 chomp $s;
830 # Prefix all patterns so that the ignore doesn't apply
831 # to sub-directories.
832 $s =~ s#^#/#gm;
833 print GITIGNORE "$s\n";
834 close(GITIGNORE)
835 or fatal("Failed to close `$ignore': $!");
836 command_noisy('add', '-f', $ignore);
837 });
838 }
839
840 sub cmd_mkdirs {
841 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
842 $gs ||= Git::SVN->new;
843 $gs->mkemptydirs($_revision);
844 }
845
846 sub canonicalize_path {
847 my ($path) = @_;
848 my $dot_slash_added = 0;
849 if (substr($path, 0, 1) ne "/") {
850 $path = "./" . $path;
851 $dot_slash_added = 1;
852 }
853 # File::Spec->canonpath doesn't collapse x/../y into y (for a
854 # good reason), so let's do this manually.
855 $path =~ s#/+#/#g;
856 $path =~ s#/\.(?:/|$)#/#g;
857 $path =~ s#/[^/]+/\.\.##g;
858 $path =~ s#/$##g;
859 $path =~ s#^\./## if $dot_slash_added;
860 $path =~ s#^/##;
861 $path =~ s#^\.$##;
862 return $path;
863 }
864
865 sub canonicalize_url {
866 my ($url) = @_;
867 $url =~ s#^([^:]+://[^/]*/)(.*)$#$1 . canonicalize_path($2)#e;
868 return $url;
869 }
870
871 # get_svnprops(PATH)
872 # ------------------
873 # Helper for cmd_propget and cmd_proplist below.
874 sub get_svnprops {
875 my $path = shift;
876 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
877 $gs ||= Git::SVN->new;
878
879 # prefix THE PATH by the sub-directory from which the user
880 # invoked us.
881 $path = $cmd_dir_prefix . $path;
882 fatal("No such file or directory: $path") unless -e $path;
883 my $is_dir = -d $path ? 1 : 0;
884 $path = $gs->{path} . '/' . $path;
885
886 # canonicalize the path (otherwise libsvn will abort or fail to
887 # find the file)
888 $path = canonicalize_path($path);
889
890 my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum);
891 my $props;
892 if ($is_dir) {
893 (undef, undef, $props) = $gs->ra->get_dir($path, $r);
894 }
895 else {
896 (undef, $props) = $gs->ra->get_file($path, $r, undef);
897 }
898 return $props;
899 }
900
901 # cmd_propget (PROP, PATH)
902 # ------------------------
903 # Print the SVN property PROP for PATH.
904 sub cmd_propget {
905 my ($prop, $path) = @_;
906 $path = '.' if not defined $path;
907 usage(1) if not defined $prop;
908 my $props = get_svnprops($path);
909 if (not defined $props->{$prop}) {
910 fatal("`$path' does not have a `$prop' SVN property.");
911 }
912 print $props->{$prop} . "\n";
913 }
914
915 # cmd_proplist (PATH)
916 # -------------------
917 # Print the list of SVN properties for PATH.
918 sub cmd_proplist {
919 my $path = shift;
920 $path = '.' if not defined $path;
921 my $props = get_svnprops($path);
922 print "Properties on '$path':\n";
923 foreach (sort keys %{$props}) {
924 print " $_\n";
925 }
926 }
927
928 sub cmd_multi_init {
929 my $url = shift;
930 unless (defined $_trunk || @_branches || @_tags) {
931 usage(1);
932 }
933
934 $_prefix = '' unless defined $_prefix;
935 if (defined $url) {
936 $url = canonicalize_url($url);
937 init_subdir(@_);
938 }
939 do_git_init_db();
940 if (defined $_trunk) {
941 my $trunk_ref = 'refs/remotes/' . $_prefix . 'trunk';
942 # try both old-style and new-style lookups:
943 my $gs_trunk = eval { Git::SVN->new($trunk_ref) };
944 unless ($gs_trunk) {
945 my ($trunk_url, $trunk_path) =
946 complete_svn_url($url, $_trunk);
947 $gs_trunk = Git::SVN->init($trunk_url, $trunk_path,
948 undef, $trunk_ref);
949 }
950 }
951 return unless @_branches || @_tags;
952 my $ra = $url ? Git::SVN::Ra->new($url) : undef;
953 foreach my $path (@_branches) {
954 complete_url_ls_init($ra, $path, '--branches/-b', $_prefix);
955 }
956 foreach my $path (@_tags) {
957 complete_url_ls_init($ra, $path, '--tags/-t', $_prefix.'tags/');
958 }
959 }
960
961 sub cmd_multi_fetch {
962 $Git::SVN::no_reuse_existing = undef;
963 my $remotes = Git::SVN::read_all_remotes();
964 foreach my $repo_id (sort keys %$remotes) {
965 if ($remotes->{$repo_id}->{url}) {
966 Git::SVN::fetch_all($repo_id, $remotes);
967 }
968 }
969 }
970
971 # this command is special because it requires no metadata
972 sub cmd_commit_diff {
973 my ($ta, $tb, $url) = @_;
974 my $usage = "Usage: $0 commit-diff -r<revision> ".
975 "<tree-ish> <tree-ish> [<URL>]";
976 fatal($usage) if (!defined $ta || !defined $tb);
977 my $svn_path = '';
978 if (!defined $url) {
979 my $gs = eval { Git::SVN->new };
980 if (!$gs) {
981 fatal("Needed URL or usable git-svn --id in ",
982 "the command-line\n", $usage);
983 }
984 $url = $gs->{url};
985 $svn_path = $gs->{path};
986 }
987 unless (defined $_revision) {
988 fatal("-r|--revision is a required argument\n", $usage);
989 }
990 if (defined $_message && defined $_file) {
991 fatal("Both --message/-m and --file/-F specified ",
992 "for the commit message.\n",
993 "I have no idea what you mean");
994 }
995 if (defined $_file) {
996 $_message = file_to_s($_file);
997 } else {
998 $_message ||= get_commit_entry($tb)->{log};
999 }
1000 my $ra ||= Git::SVN::Ra->new($url);
1001 my $r = $_revision;
1002 if ($r eq 'HEAD') {
1003 $r = $ra->get_latest_revnum;
1004 } elsif ($r !~ /^\d+$/) {
1005 die "revision argument: $r not understood by git-svn\n";
1006 }
1007 my %ed_opts = ( r => $r,
1008 log => $_message,
1009 ra => $ra,
1010 tree_a => $ta,
1011 tree_b => $tb,
1012 editor_cb => sub { print "Committed r$_[0]\n" },
1013 svn_path => $svn_path );
1014 if (!SVN::Git::Editor->new(\%ed_opts)->apply_diff) {
1015 print "No changes\n$ta == $tb\n";
1016 }
1017 }
1018
1019 sub escape_uri_only {
1020 my ($uri) = @_;
1021 my @tmp;
1022 foreach (split m{/}, $uri) {
1023 s/([^~\w.%+-]|%(?![a-fA-F0-9]{2}))/sprintf("%%%02X",ord($1))/eg;
1024 push @tmp, $_;
1025 }
1026 join('/', @tmp);
1027 }
1028
1029 sub escape_url {
1030 my ($url) = @_;
1031 if ($url =~ m#^([^:]+)://([^/]*)(.*)$#) {
1032 my ($scheme, $domain, $uri) = ($1, $2, escape_uri_only($3));
1033 $url = "$scheme://$domain$uri";
1034 }
1035 $url;
1036 }
1037
1038 sub cmd_info {
1039 my $path = canonicalize_path(defined($_[0]) ? $_[0] : ".");
1040 my $fullpath = canonicalize_path($cmd_dir_prefix . $path);
1041 if (exists $_[1]) {
1042 die "Too many arguments specified\n";
1043 }
1044
1045 my ($file_type, $diff_status) = find_file_type_and_diff_status($path);
1046
1047 if (!$file_type && !$diff_status) {
1048 print STDERR "svn: '$path' is not under version control\n";
1049 exit 1;
1050 }
1051
1052 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
1053 unless ($gs) {
1054 die "Unable to determine upstream SVN information from ",
1055 "working tree history\n";
1056 }
1057
1058 # canonicalize_path() will return "" to make libsvn 1.5.x happy,
1059 $path = "." if $path eq "";
1060
1061 my $full_url = $url . ($fullpath eq "" ? "" : "/$fullpath");
1062
1063 if ($_url) {
1064 print escape_url($full_url), "\n";
1065 return;
1066 }
1067
1068 my $result = "Path: $path\n";
1069 $result .= "Name: " . basename($path) . "\n" if $file_type ne "dir";
1070 $result .= "URL: " . escape_url($full_url) . "\n";
1071
1072 eval {
1073 my $repos_root = $gs->repos_root;
1074 Git::SVN::remove_username($repos_root);
1075 $result .= "Repository Root: " . escape_url($repos_root) . "\n";
1076 };
1077 if ($@) {
1078 $result .= "Repository Root: (offline)\n";
1079 }
1080 $result .= "Repository UUID: $uuid\n" unless $diff_status eq "A" &&
1081 ($SVN::Core::VERSION le '1.5.4' || $file_type ne "dir");
1082 $result .= "Revision: " . ($diff_status eq "A" ? 0 : $rev) . "\n";
1083
1084 $result .= "Node Kind: " .
1085 ($file_type eq "dir" ? "directory" : "file") . "\n";
1086
1087 my $schedule = $diff_status eq "A"
1088 ? "add"
1089 : ($diff_status eq "D" ? "delete" : "normal");
1090 $result .= "Schedule: $schedule\n";
1091
1092 if ($diff_status eq "A") {
1093 print $result, "\n";
1094 return;
1095 }
1096
1097 my ($lc_author, $lc_rev, $lc_date_utc);
1098 my @args = Git::SVN::Log::git_svn_log_cmd($rev, $rev, "--", $fullpath);
1099 my $log = command_output_pipe(@args);
1100 my $esc_color = qr/(?:\033\[(?:(?:\d+;)*\d*)?m)*/;
1101 while (<$log>) {
1102 if (/^${esc_color}author (.+) <[^>]+> (\d+) ([\-\+]?\d+)$/o) {
1103 $lc_author = $1;
1104 $lc_date_utc = Git::SVN::Log::parse_git_date($2, $3);
1105 } elsif (/^${esc_color} (git-svn-id:.+)$/o) {
1106 (undef, $lc_rev, undef) = ::extract_metadata($1);
1107 }
1108 }
1109 close $log;
1110
1111 Git::SVN::Log::set_local_timezone();
1112
1113 $result .= "Last Changed Author: $lc_author\n";
1114 $result .= "Last Changed Rev: $lc_rev\n";
1115 $result .= "Last Changed Date: " .
1116 Git::SVN::Log::format_svn_date($lc_date_utc) . "\n";
1117
1118 if ($file_type ne "dir") {
1119 my $text_last_updated_date =
1120 ($diff_status eq "D" ? $lc_date_utc : (stat $path)[9]);
1121 $result .=
1122 "Text Last Updated: " .
1123 Git::SVN::Log::format_svn_date($text_last_updated_date) .
1124 "\n";
1125 my $checksum;
1126 if ($diff_status eq "D") {
1127 my ($fh, $ctx) =
1128 command_output_pipe(qw(cat-file blob), "HEAD:$path");
1129 if ($file_type eq "link") {
1130 my $file_name = <$fh>;
1131 $checksum = md5sum("link $file_name");
1132 } else {
1133 $checksum = md5sum($fh);
1134 }
1135 command_close_pipe($fh, $ctx);
1136 } elsif ($file_type eq "link") {
1137 my $file_name =
1138 command(qw(cat-file blob), "HEAD:$path");
1139 $checksum =
1140 md5sum("link " . $file_name);
1141 } else {
1142 open FILE, "<", $path or die $!;
1143 $checksum = md5sum(\*FILE);
1144 close FILE or die $!;
1145 }
1146 $result .= "Checksum: " . $checksum . "\n";
1147 }
1148
1149 print $result, "\n";
1150 }
1151
1152 sub cmd_reset {
1153 my $target = shift || $_revision or die "SVN revision required\n";
1154 $target = $1 if $target =~ /^r(\d+)$/;
1155 $target =~ /^\d+$/ or die "Numeric SVN revision expected\n";
1156 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
1157 unless ($gs) {
1158 die "Unable to determine upstream SVN information from ".
1159 "history\n";
1160 }
1161 my ($r, $c) = $gs->find_rev_before($target, not $_fetch_parent);
1162 $gs->rev_map_set($r, $c, 'reset', $uuid);
1163 print "r$r = $c ($gs->{ref_id})\n";
1164 }
1165
1166 sub cmd_gc {
1167 if (!$can_compress) {
1168 warn "Compress::Zlib could not be found; unhandled.log " .
1169 "files will not be compressed.\n";
1170 }
1171 find({ wanted => \&gc_directory, no_chdir => 1}, "$ENV{GIT_DIR}/svn");
1172 }
1173
1174 ########################### utility functions #########################
1175
1176 sub rebase_cmd {
1177 my @cmd = qw/rebase/;
1178 push @cmd, '-v' if $_verbose;
1179 push @cmd, qw/--merge/ if $_merge;
1180 push @cmd, "--strategy=$_strategy" if $_strategy;
1181 @cmd;
1182 }
1183
1184 sub post_fetch_checkout {
1185 return if $_no_checkout;
1186 my $gs = $Git::SVN::_head or return;
1187 return if verify_ref('refs/heads/master^0');
1188
1189 # look for "trunk" ref if it exists
1190 my $remote = Git::SVN::read_all_remotes()->{$gs->{repo_id}};
1191 my $fetch = $remote->{fetch};
1192 if ($fetch) {
1193 foreach my $p (keys %$fetch) {
1194 basename($fetch->{$p}) eq 'trunk' or next;
1195 $gs = Git::SVN->new($fetch->{$p}, $gs->{repo_id}, $p);
1196 last;
1197 }
1198 }
1199
1200 my $valid_head = verify_ref('HEAD^0');
1201 command_noisy(qw(update-ref refs/heads/master), $gs->refname);
1202 return if ($valid_head || !verify_ref('HEAD^0'));
1203
1204 return if $ENV{GIT_DIR} !~ m#^(?:.*/)?\.git$#;
1205 my $index = $ENV{GIT_INDEX_FILE} || "$ENV{GIT_DIR}/index";
1206 return if -f $index;
1207
1208 return if command_oneline(qw/rev-parse --is-inside-work-tree/) eq 'false';
1209 return if command_oneline(qw/rev-parse --is-inside-git-dir/) eq 'true';
1210 command_noisy(qw/read-tree -m -u -v HEAD HEAD/);
1211 print STDERR "Checked out HEAD:\n ",
1212 $gs->full_url, " r", $gs->last_rev, "\n";
1213 $gs->mkemptydirs($gs->last_rev);
1214 }
1215
1216 sub complete_svn_url {
1217 my ($url, $path) = @_;
1218 $path =~ s#/+$##;
1219 if ($path !~ m#^[a-z\+]+://#) {
1220 if (!defined $url || $url !~ m#^[a-z\+]+://#) {
1221 fatal("E: '$path' is not a complete URL ",
1222 "and a separate URL is not specified");
1223 }
1224 return ($url, $path);
1225 }
1226 return ($path, '');
1227 }
1228
1229 sub complete_url_ls_init {
1230 my ($ra, $repo_path, $switch, $pfx) = @_;
1231 unless ($repo_path) {
1232 print STDERR "W: $switch not specified\n";
1233 return;
1234 }
1235 $repo_path =~ s#/+$##;
1236 if ($repo_path =~ m#^[a-z\+]+://#) {
1237 $ra = Git::SVN::Ra->new($repo_path);
1238 $repo_path = '';
1239 } else {
1240 $repo_path =~ s#^/+##;
1241 unless ($ra) {
1242 fatal("E: '$repo_path' is not a complete URL ",
1243 "and a separate URL is not specified");
1244 }
1245 }
1246 my $url = $ra->{url};
1247 my $gs = Git::SVN->init($url, undef, undef, undef, 1);
1248 my $k = "svn-remote.$gs->{repo_id}.url";
1249 my $orig_url = eval { command_oneline(qw/config --get/, $k) };
1250 if ($orig_url && ($orig_url ne $gs->{url})) {
1251 die "$k already set: $orig_url\n",
1252 "wanted to set to: $gs->{url}\n";
1253 }
1254 command_oneline('config', $k, $gs->{url}) unless $orig_url;
1255 my $remote_path = "$gs->{path}/$repo_path";
1256 $remote_path =~ s{%([0-9A-F]{2})}{chr hex($1)}ieg;
1257 $remote_path =~ s#/+#/#g;
1258 $remote_path =~ s#^/##g;
1259 $remote_path .= "/*" if $remote_path !~ /\*/;
1260 my ($n) = ($switch =~ /^--(\w+)/);
1261 if (length $pfx && $pfx !~ m#/$#) {
1262 die "--prefix='$pfx' must have a trailing slash '/'\n";
1263 }
1264 command_noisy('config',
1265 '--add',
1266 "svn-remote.$gs->{repo_id}.$n",
1267 "$remote_path:refs/remotes/$pfx*" .
1268 ('/*' x (($remote_path =~ tr/*/*/) - 1)) );
1269 }
1270
1271 sub verify_ref {
1272 my ($ref) = @_;
1273 eval { command_oneline([ 'rev-parse', '--verify', $ref ],
1274 { STDERR => 0 }); };
1275 }
1276
1277 sub get_tree_from_treeish {
1278 my ($treeish) = @_;
1279 # $treeish can be a symbolic ref, too:
1280 my $type = command_oneline(qw/cat-file -t/, $treeish);
1281 my $expected;
1282 while ($type eq 'tag') {
1283 ($treeish, $type) = command(qw/cat-file tag/, $treeish);
1284 }
1285 if ($type eq 'commit') {
1286 $expected = (grep /^tree /, command(qw/cat-file commit/,
1287 $treeish))[0];
1288 ($expected) = ($expected =~ /^tree ($sha1)$/o);
1289 die "Unable to get tree from $treeish\n" unless $expected;
1290 } elsif ($type eq 'tree') {
1291 $expected = $treeish;
1292 } else {
1293 die "$treeish is a $type, expected tree, tag or commit\n";
1294 }
1295 return $expected;
1296 }
1297
1298 sub get_commit_entry {
1299 my ($treeish) = shift;
1300 my %log_entry = ( log => '', tree => get_tree_from_treeish($treeish) );
1301 my $commit_editmsg = "$ENV{GIT_DIR}/COMMIT_EDITMSG";
1302 my $commit_msg = "$ENV{GIT_DIR}/COMMIT_MSG";
1303 open my $log_fh, '>', $commit_editmsg or croak $!;
1304
1305 my $type = command_oneline(qw/cat-file -t/, $treeish);
1306 if ($type eq 'commit' || $type eq 'tag') {
1307 my ($msg_fh, $ctx) = command_output_pipe('cat-file',
1308 $type, $treeish);
1309 my $in_msg = 0;
1310 my $author;
1311 my $saw_from = 0;
1312 my $msgbuf = "";
1313 while (<$msg_fh>) {
1314 if (!$in_msg) {
1315 $in_msg = 1 if (/^\s*$/);
1316 $author = $1 if (/^author (.*>)/);
1317 } elsif (/^git-svn-id: /) {
1318 # skip this for now, we regenerate the
1319 # correct one on re-fetch anyways
1320 # TODO: set *:merge properties or like...
1321 } else {
1322 if (/^From:/ || /^Signed-off-by:/) {
1323 $saw_from = 1;
1324 }
1325 $msgbuf .= $_;
1326 }
1327 }
1328 $msgbuf =~ s/\s+$//s;
1329 if ($Git::SVN::_add_author_from && defined($author)
1330 && !$saw_from) {
1331 $msgbuf .= "\n\nFrom: $author";
1332 }
1333 print $log_fh $msgbuf or croak $!;
1334 command_close_pipe($msg_fh, $ctx);
1335 }
1336 close $log_fh or croak $!;
1337
1338 if ($_edit || ($type eq 'tree')) {
1339 chomp(my $editor = command_oneline(qw(var GIT_EDITOR)));
1340 system('sh', '-c', $editor.' "$@"', $editor, $commit_editmsg);
1341 }
1342 rename $commit_editmsg, $commit_msg or croak $!;
1343 {
1344 require Encode;
1345 # SVN requires messages to be UTF-8 when entering the repo
1346 local $/;
1347 open $log_fh, '<', $commit_msg or croak $!;
1348 binmode $log_fh;
1349 chomp($log_entry{log} = <$log_fh>);
1350
1351 my $enc = Git::config('i18n.commitencoding') || 'UTF-8';
1352 my $msg = $log_entry{log};
1353
1354 eval { $msg = Encode::decode($enc, $msg, 1) };
1355 if ($@) {
1356 die "Could not decode as $enc:\n", $msg,
1357 "\nPerhaps you need to set i18n.commitencoding\n";
1358 }
1359
1360 eval { $msg = Encode::encode('UTF-8', $msg, 1) };
1361 die "Could not encode as UTF-8:\n$msg\n" if $@;
1362
1363 $log_entry{log} = $msg;
1364
1365 close $log_fh or croak $!;
1366 }
1367 unlink $commit_msg;
1368 \%log_entry;
1369 }
1370
1371 sub s_to_file {
1372 my ($str, $file, $mode) = @_;
1373 open my $fd,'>',$file or croak $!;
1374 print $fd $str,"\n" or croak $!;
1375 close $fd or croak $!;
1376 chmod ($mode &~ umask, $file) if (defined $mode);
1377 }
1378
1379 sub file_to_s {
1380 my $file = shift;
1381 open my $fd,'<',$file or croak "$!: file: $file\n";
1382 local $/;
1383 my $ret = <$fd>;
1384 close $fd or croak $!;
1385 $ret =~ s/\s*$//s;
1386 return $ret;
1387 }
1388
1389 # '<svn username> = real-name <email address>' mapping based on git-svnimport:
1390 sub load_authors {
1391 open my $authors, '<', $_authors or die "Can't open $_authors $!\n";
1392 my $log = $cmd eq 'log';
1393 while (<$authors>) {
1394 chomp;
1395 next unless /^(.+?|\(no author\))\s*=\s*(.+?)\s*<(.+)>\s*$/;
1396 my ($user, $name, $email) = ($1, $2, $3);
1397 if ($log) {
1398 $Git::SVN::Log::rusers{"$name <$email>"} = $user;
1399 } else {
1400 $users{$user} = [$name, $email];
1401 }
1402 }
1403 close $authors or croak $!;
1404 }
1405
1406 # convert GetOpt::Long specs for use by git-config
1407 sub read_git_config {
1408 my $opts = shift;
1409 my @config_only;
1410 foreach my $o (keys %$opts) {
1411 # if we have mixedCase and a long option-only, then
1412 # it's a config-only variable that we don't need for
1413 # the command-line.
1414 push @config_only, $o if ($o =~ /[A-Z]/ && $o =~ /^[a-z]+$/i);
1415 my $v = $opts->{$o};
1416 my ($key) = ($o =~ /^([a-zA-Z\-]+)/);
1417 $key =~ s/-//g;
1418 my $arg = 'git config';
1419 $arg .= ' --int' if ($o =~ /[:=]i$/);
1420 $arg .= ' --bool' if ($o !~ /[:=][sfi]$/);
1421 if (ref $v eq 'ARRAY') {
1422 chomp(my @tmp = `$arg --get-all svn.$key`);
1423 @$v = @tmp if @tmp;
1424 } else {
1425 chomp(my $tmp = `$arg --get svn.$key`);
1426 if ($tmp && !($arg =~ / --bool/ && $tmp eq 'false')) {
1427 $$v = $tmp;
1428 }
1429 }
1430 }
1431 delete @$opts{@config_only} if @config_only;
1432 }
1433
1434 sub extract_metadata {
1435 my $id = shift or return (undef, undef, undef);
1436 my ($url, $rev, $uuid) = ($id =~ /^\s*git-svn-id:\s+(.*)\@(\d+)
1437 \s([a-f\d\-]+)$/ix);
1438 if (!defined $rev || !$uuid || !$url) {
1439 # some of the original repositories I made had
1440 # identifiers like this:
1441 ($rev, $uuid) = ($id =~/^\s*git-svn-id:\s(\d+)\@([a-f\d\-]+)/i);
1442 }
1443 return ($url, $rev, $uuid);
1444 }
1445
1446 sub cmt_metadata {
1447 return extract_metadata((grep(/^git-svn-id: /,
1448 command(qw/cat-file commit/, shift)))[-1]);
1449 }
1450
1451 sub cmt_sha2rev_batch {
1452 my %s2r;
1453 my ($pid, $in, $out, $ctx) = command_bidi_pipe(qw/cat-file --batch/);
1454 my $list = shift;
1455
1456 foreach my $sha (@{$list}) {
1457 my $first = 1;
1458 my $size = 0;
1459 print $out $sha, "\n";
1460
1461 while (my $line = <$in>) {
1462 if ($first && $line =~ /^[[:xdigit:]]{40}\smissing$/) {
1463 last;
1464 } elsif ($first &&
1465 $line =~ /^[[:xdigit:]]{40}\scommit\s(\d+)$/) {
1466 $first = 0;
1467 $size = $1;
1468 next;
1469 } elsif ($line =~ /^(git-svn-id: )/) {
1470 my (undef, $rev, undef) =
1471 extract_metadata($line);
1472 $s2r{$sha} = $rev;
1473 }
1474
1475 $size -= length($line);
1476 last if ($size == 0);
1477 }
1478 }
1479
1480 command_close_bidi_pipe($pid, $in, $out, $ctx);
1481
1482 return \%s2r;
1483 }
1484
1485 sub working_head_info {
1486 my ($head, $refs) = @_;
1487 my @args = ('log', '--no-color', '--first-parent', '--pretty=medium');
1488 my ($fh, $ctx) = command_output_pipe(@args, $head);
1489 my $hash;
1490 my %max;
1491 while (<$fh>) {
1492 if ( m{^commit ($::sha1)$} ) {
1493 unshift @$refs, $hash if $hash and $refs;
1494 $hash = $1;
1495 next;
1496 }
1497 next unless s{^\s*(git-svn-id:)}{$1};
1498 my ($url, $rev, $uuid) = extract_metadata($_);
1499 if (defined $url && defined $rev) {
1500 next if $max{$url} and $max{$url} < $rev;
1501 if (my $gs = Git::SVN->find_by_url($url)) {
1502 my $c = $gs->rev_map_get($rev, $uuid);
1503 if ($c && $c eq $hash) {
1504 close $fh; # break the pipe
1505 return ($url, $rev, $uuid, $gs);
1506 } else {
1507 $max{$url} ||= $gs->rev_map_max;
1508 }
1509 }
1510 }
1511 }
1512 command_close_pipe($fh, $ctx);
1513 (undef, undef, undef, undef);
1514 }
1515
1516 sub read_commit_parents {
1517 my ($parents, $c) = @_;
1518 chomp(my $p = command_oneline(qw/rev-list --parents -1/, $c));
1519 $p =~ s/^($c)\s*// or die "rev-list --parents -1 $c failed!\n";
1520 @{$parents->{$c}} = split(/ /, $p);
1521 }
1522
1523 sub linearize_history {
1524 my ($gs, $refs) = @_;
1525 my %parents;
1526 foreach my $c (@$refs) {
1527 read_commit_parents(\%parents, $c);
1528 }
1529
1530 my @linear_refs;
1531 my %skip = ();
1532 my $last_svn_commit = $gs->last_commit;
1533 foreach my $c (reverse @$refs) {
1534 next if $c eq $last_svn_commit;
1535 last if $skip{$c};
1536
1537 unshift @linear_refs, $c;
1538 $skip{$c} = 1;
1539
1540 # we only want the first parent to diff against for linear
1541 # history, we save the rest to inject when we finalize the
1542 # svn commit
1543 my $fp_a = verify_ref("$c~1");
1544 my $fp_b = shift @{$parents{$c}} if $parents{$c};
1545 if (!$fp_a || !$fp_b) {
1546 die "Commit $c\n",
1547 "has no parent commit, and therefore ",
1548 "nothing to diff against.\n",
1549 "You should be working from a repository ",
1550 "originally created by git-svn\n";
1551 }
1552 if ($fp_a ne $fp_b) {
1553 die "$c~1 = $fp_a, however parsing commit $c ",
1554 "revealed that:\n$c~1 = $fp_b\nBUG!\n";
1555 }
1556
1557 foreach my $p (@{$parents{$c}}) {
1558 $skip{$p} = 1;
1559 }
1560 }
1561 (\@linear_refs, \%parents);
1562 }
1563
1564 sub find_file_type_and_diff_status {
1565 my ($path) = @_;
1566 return ('dir', '') if $path eq '';
1567
1568 my $diff_output =
1569 command_oneline(qw(diff --cached --name-status --), $path) || "";
1570 my $diff_status = (split(' ', $diff_output))[0] || "";
1571
1572 my $ls_tree = command_oneline(qw(ls-tree HEAD), $path) || "";
1573
1574 return (undef, undef) if !$diff_status && !$ls_tree;
1575
1576 if ($diff_status eq "A") {
1577 return ("link", $diff_status) if -l $path;
1578 return ("dir", $diff_status) if -d $path;
1579 return ("file", $diff_status);
1580 }
1581
1582 my $mode = (split(' ', $ls_tree))[0] || "";
1583
1584 return ("link", $diff_status) if $mode eq "120000";
1585 return ("dir", $diff_status) if $mode eq "040000";
1586 return ("file", $diff_status);
1587 }
1588
1589 sub md5sum {
1590 my $arg = shift;
1591 my $ref = ref $arg;
1592 my $md5 = Digest::MD5->new();
1593 if ($ref eq 'GLOB' || $ref eq 'IO::File' || $ref eq 'File::Temp') {
1594 $md5->addfile($arg) or croak $!;
1595 } elsif ($ref eq 'SCALAR') {
1596 $md5->add($$arg) or croak $!;
1597 } elsif (!$ref) {
1598 $md5->add($arg) or croak $!;
1599 } else {
1600 ::fatal "Can't provide MD5 hash for unknown ref type: '", $ref, "'";
1601 }
1602 return $md5->hexdigest();
1603 }
1604
1605 sub gc_directory {
1606 if ($can_compress && -f $_ && basename($_) eq "unhandled.log") {
1607 my $out_filename = $_ . ".gz";
1608 open my $in_fh, "<", $_ or die "Unable to open $_: $!\n";
1609 binmode $in_fh;
1610 my $gz = Compress::Zlib::gzopen($out_filename, "ab") or
1611 die "Unable to open $out_filename: $!\n";
1612
1613 my $res;
1614 while ($res = sysread($in_fh, my $str, 1024)) {
1615 $gz->gzwrite($str) or
1616 die "Unable to write: ".$gz->gzerror()."!\n";
1617 }
1618 unlink $_ or die "unlink $File::Find::name: $!\n";
1619 } elsif (-f $_ && basename($_) eq "index") {
1620 unlink $_ or die "unlink $_: $!\n";
1621 }
1622 }
1623
1624 package Git::SVN;
1625 use strict;
1626 use warnings;
1627 use Fcntl qw/:DEFAULT :seek/;
1628 use constant rev_map_fmt => 'NH40';
1629 use vars qw/$default_repo_id $default_ref_id $_no_metadata $_follow_parent
1630 $_repack $_repack_flags $_use_svm_props $_head
1631 $_use_svnsync_props $no_reuse_existing $_minimize_url
1632 $_use_log_author $_add_author_from $_localtime/;
1633 use Carp qw/croak/;
1634 use File::Path qw/mkpath/;
1635 use File::Copy qw/copy/;
1636 use IPC::Open3;
1637 use Memoize; # core since 5.8.0, Jul 2002
1638
1639 my ($_gc_nr, $_gc_period);
1640
1641 # properties that we do not log:
1642 my %SKIP_PROP;
1643 BEGIN {
1644 %SKIP_PROP = map { $_ => 1 } qw/svn:wc:ra_dav:version-url
1645 svn:special svn:executable
1646 svn:entry:committed-rev
1647 svn:entry:last-author
1648 svn:entry:uuid
1649 svn:entry:committed-date/;
1650
1651 # some options are read globally, but can be overridden locally
1652 # per [svn-remote "..."] section. Command-line options will *NOT*
1653 # override options set in an [svn-remote "..."] section
1654 no strict 'refs';
1655 for my $option (qw/follow_parent no_metadata use_svm_props
1656 use_svnsync_props/) {
1657 my $key = $option;
1658 $key =~ tr/_//d;
1659 my $prop = "-$option";
1660 *$option = sub {
1661 my ($self) = @_;
1662 return $self->{$prop} if exists $self->{$prop};
1663 my $k = "svn-remote.$self->{repo_id}.$key";
1664 eval { command_oneline(qw/config --get/, $k) };
1665 if ($@) {
1666 $self->{$prop} = ${"Git::SVN::_$option"};
1667 } else {
1668 my $v = command_oneline(qw/config --bool/,$k);
1669 $self->{$prop} = $v eq 'false' ? 0 : 1;
1670 }
1671 return $self->{$prop};
1672 }
1673 }
1674 }
1675
1676
1677 my (%LOCKFILES, %INDEX_FILES);
1678 END {
1679 unlink keys %LOCKFILES if %LOCKFILES;
1680 unlink keys %INDEX_FILES if %INDEX_FILES;
1681 }
1682
1683 sub resolve_local_globs {
1684 my ($url, $fetch, $glob_spec) = @_;
1685 return unless defined $glob_spec;
1686 my $ref = $glob_spec->{ref};
1687 my $path = $glob_spec->{path};
1688 foreach (command(qw#for-each-ref --format=%(refname) refs/#)) {
1689 next unless m#^$ref->{regex}$#;
1690 my $p = $1;
1691 my $pathname = desanitize_refname($path->full_path($p));
1692 my $refname = desanitize_refname($ref->full_path($p));
1693 if (my $existing = $fetch->{$pathname}) {
1694 if ($existing ne $refname) {
1695 die "Refspec conflict:\n",
1696 "existing: $existing\n",
1697 " globbed: $refname\n";
1698 }
1699 my $u = (::cmt_metadata("$refname"))[0];
1700 $u =~ s!^\Q$url\E(/|$)!! or die
1701 "$refname: '$url' not found in '$u'\n";
1702 if ($pathname ne $u) {
1703 warn "W: Refspec glob conflict ",
1704 "(ref: $refname):\n",
1705 "expected path: $pathname\n",
1706 " real path: $u\n",
1707 "Continuing ahead with $u\n";
1708 next;
1709 }
1710 } else {
1711 $fetch->{$pathname} = $refname;
1712 }
1713 }
1714 }
1715
1716 sub parse_revision_argument {
1717 my ($base, $head) = @_;
1718 if (!defined $::_revision || $::_revision eq 'BASE:HEAD') {
1719 return ($base, $head);
1720 }
1721 return ($1, $2) if ($::_revision =~ /^(\d+):(\d+)$/);
1722 return ($::_revision, $::_revision) if ($::_revision =~ /^\d+$/);
1723 return ($head, $head) if ($::_revision eq 'HEAD');
1724 return ($base, $1) if ($::_revision =~ /^BASE:(\d+)$/);
1725 return ($1, $head) if ($::_revision =~ /^(\d+):HEAD$/);
1726 die "revision argument: $::_revision not understood by git-svn\n";
1727 }
1728
1729 sub fetch_all {
1730 my ($repo_id, $remotes) = @_;
1731 if (ref $repo_id) {
1732 my $gs = $repo_id;
1733 $repo_id = undef;
1734 $repo_id = $gs->{repo_id};
1735 }
1736 $remotes ||= read_all_remotes();
1737 my $remote = $remotes->{$repo_id} or
1738 die "[svn-remote \"$repo_id\"] unknown\n";
1739 my $fetch = $remote->{fetch};
1740 my $url = $remote->{url} or die "svn-remote.$repo_id.url not defined\n";
1741 my (@gs, @globs);
1742 my $ra = Git::SVN::Ra->new($url);
1743 my $uuid = $ra->get_uuid;
1744 my $head = $ra->get_latest_revnum;
1745
1746 # ignore errors, $head revision may not even exist anymore
1747 eval { $ra->get_log("", $head, 0, 1, 0, 1, sub { $head = $_[1] }) };
1748 warn "W: $@\n" if $@;
1749
1750 my $base = defined $fetch ? $head : 0;
1751
1752 # read the max revs for wildcard expansion (branches/*, tags/*)
1753 foreach my $t (qw/branches tags/) {
1754 defined $remote->{$t} or next;
1755 push @globs, @{$remote->{$t}};
1756
1757 my $max_rev = eval { tmp_config(qw/--int --get/,
1758 "svn-remote.$repo_id.${t}-maxRev") };
1759 if (defined $max_rev && ($max_rev < $base)) {
1760 $base = $max_rev;
1761 } elsif (!defined $max_rev) {
1762 $base = 0;
1763 }
1764 }
1765
1766 if ($fetch) {
1767 foreach my $p (sort keys %$fetch) {
1768 my $gs = Git::SVN->new($fetch->{$p}, $repo_id, $p);
1769 my $lr = $gs->rev_map_max;
1770 if (defined $lr) {
1771 $base = $lr if ($lr < $base);
1772 }
1773 push @gs, $gs;
1774 }
1775 }
1776
1777 ($base, $head) = parse_revision_argument($base, $head);
1778 $ra->gs_fetch_loop_common($base, $head, \@gs, \@globs);
1779 }
1780
1781 sub read_all_remotes {
1782 my $r = {};
1783 my $use_svm_props = eval { command_oneline(qw/config --bool
1784 svn.useSvmProps/) };
1785 $use_svm_props = $use_svm_props eq 'true' if $use_svm_props;
1786 my $svn_refspec = qr{\s*(.*?)\s*:\s*(.+?)\s*};
1787 foreach (grep { s/^svn-remote\.// } command(qw/config -l/)) {
1788 if (m!^(.+)\.fetch=$svn_refspec$!) {
1789 my ($remote, $local_ref, $remote_ref) = ($1, $2, $3);
1790 die("svn-remote.$remote: remote ref '$remote_ref' "
1791 . "must start with 'refs/'\n")
1792 unless $remote_ref =~ m{^refs/};
1793 $r->{$remote}->{fetch}->{$local_ref} = $remote_ref;
1794 $r->{$remote}->{svm} = {} if $use_svm_props;
1795 } elsif (m!^(.+)\.usesvmprops=\s*(.*)\s*$!) {
1796 $r->{$1}->{svm} = {};
1797 } elsif (m!^(.+)\.url=\s*(.*)\s*$!) {
1798 $r->{$1}->{url} = $2;
1799 } elsif (m!^(.+)\.(branches|tags)=$svn_refspec$!) {
1800 my ($remote, $t, $local_ref, $remote_ref) =
1801 ($1, $2, $3, $4);
1802 die("svn-remote.$remote: remote ref '$remote_ref' ($t) "
1803 . "must start with 'refs/'\n")
1804 unless $remote_ref =~ m{^refs/};
1805 my $rs = {
1806 t => $t,
1807 remote => $remote,
1808 path => Git::SVN::GlobSpec->new($local_ref),
1809 ref => Git::SVN::GlobSpec->new($remote_ref) };
1810 if (length($rs->{ref}->{right}) != 0) {
1811 die "The '*' glob character must be the last ",
1812 "character of '$remote_ref'\n";
1813 }
1814 push @{ $r->{$remote}->{$t} }, $rs;
1815 }
1816 }
1817
1818 map {
1819 if (defined $r->{$_}->{svm}) {
1820 my $svm;
1821 eval {
1822 my $section = "svn-remote.$_";
1823 $svm = {
1824 source => tmp_config('--get',
1825 "$section.svm-source"),
1826 replace => tmp_config('--get',
1827 "$section.svm-replace"),
1828 }
1829 };
1830 $r->{$_}->{svm} = $svm;
1831 }
1832 } keys %$r;
1833
1834 $r;
1835 }
1836
1837 sub init_vars {
1838 $_gc_nr = $_gc_period = 1000;
1839 if (defined $_repack || defined $_repack_flags) {
1840 warn "Repack options are obsolete; they have no effect.\n";
1841 }
1842 }
1843
1844 sub verify_remotes_sanity {
1845 return unless -d $ENV{GIT_DIR};
1846 my %seen;
1847 foreach (command(qw/config -l/)) {
1848 if (m!^svn-remote\.(?:.+)\.fetch=.*:refs/remotes/(\S+)\s*$!) {
1849 if ($seen{$1}) {
1850 die "Remote ref refs/remote/$1 is tracked by",
1851 "\n \"$_\"\nand\n \"$seen{$1}\"\n",
1852 "Please resolve this ambiguity in ",
1853 "your git configuration file before ",
1854 "continuing\n";
1855 }
1856 $seen{$1} = $_;
1857 }
1858 }
1859 }
1860
1861 sub find_existing_remote {
1862 my ($url, $remotes) = @_;
1863 return undef if $no_reuse_existing;
1864 my $existing;
1865 foreach my $repo_id (keys %$remotes) {
1866 my $u = $remotes->{$repo_id}->{url} or next;
1867 next if $u ne $url;
1868 $existing = $repo_id;
1869 last;
1870 }
1871 $existing;
1872 }
1873
1874 sub init_remote_config {
1875 my ($self, $url, $no_write) = @_;
1876 $url =~ s!/+$!!; # strip trailing slash
1877 my $r = read_all_remotes();
1878 my $existing = find_existing_remote($url, $r);
1879 if ($existing) {
1880 unless ($no_write) {
1881 print STDERR "Using existing ",
1882 "[svn-remote \"$existing\"]\n";
1883 }
1884 $self->{repo_id} = $existing;
1885 } elsif ($_minimize_url) {
1886 my $min_url = Git::SVN::Ra->new($url)->minimize_url;
1887 $existing = find_existing_remote($min_url, $r);
1888 if ($existing) {
1889 unless ($no_write) {
1890 print STDERR "Using existing ",
1891 "[svn-remote \"$existing\"]\n";
1892 }
1893 $self->{repo_id} = $existing;
1894 }
1895 if ($min_url ne $url) {
1896 unless ($no_write) {
1897 print STDERR "Using higher level of URL: ",
1898 "$url => $min_url\n";
1899 }
1900 my $old_path = $self->{path};
1901 $self->{path} = $url;
1902 $self->{path} =~ s!^\Q$min_url\E(/|$)!!;
1903 if (length $old_path) {
1904 $self->{path} .= "/$old_path";
1905 }
1906 $url = $min_url;
1907 }
1908 }
1909 my $orig_url;
1910 if (!$existing) {
1911 # verify that we aren't overwriting anything:
1912 $orig_url = eval {
1913 command_oneline('config', '--get',
1914 "svn-remote.$self->{repo_id}.url")
1915 };
1916 if ($orig_url && ($orig_url ne $url)) {
1917 die "svn-remote.$self->{repo_id}.url already set: ",
1918 "$orig_url\nwanted to set to: $url\n";
1919 }
1920 }
1921 my ($xrepo_id, $xpath) = find_ref($self->refname);
1922 if (!$no_write && defined $xpath) {
1923 die "svn-remote.$xrepo_id.fetch already set to track ",
1924 "$xpath:", $self->refname, "\n";
1925 }
1926 unless ($no_write) {
1927 command_noisy('config',
1928 "svn-remote.$self->{repo_id}.url", $url);
1929 $self->{path} =~ s{^/}{};
1930 $self->{path} =~ s{%([0-9A-F]{2})}{chr hex($1)}ieg;
1931 command_noisy('config', '--add',
1932 "svn-remote.$self->{repo_id}.fetch",
1933 "$self->{path}:".$self->refname);
1934 }
1935 $self->{url} = $url;
1936 }
1937
1938 sub find_by_url { # repos_root and, path are optional
1939 my ($class, $full_url, $repos_root, $path) = @_;
1940
1941 return undef unless defined $full_url;
1942 remove_username($full_url);
1943 remove_username($repos_root) if defined $repos_root;
1944 my $remotes = read_all_remotes();
1945 if (defined $full_url && defined $repos_root && !defined $path) {
1946 $path = $full_url;
1947 $path =~ s#^\Q$repos_root\E(?:/|$)##;
1948 }
1949 foreach my $repo_id (keys %$remotes) {
1950 my $u = $remotes->{$repo_id}->{url} or next;
1951 remove_username($u);
1952 next if defined $repos_root && $repos_root ne $u;
1953
1954 my $fetch = $remotes->{$repo_id}->{fetch} || {};
1955 foreach my $t (qw/branches tags/) {
1956 foreach my $globspec (@{$remotes->{$repo_id}->{$t}}) {
1957 resolve_local_globs($u, $fetch, $globspec);
1958 }
1959 }
1960 my $p = $path;
1961 my $rwr = rewrite_root({repo_id => $repo_id});
1962 my $svm = $remotes->{$repo_id}->{svm}
1963 if defined $remotes->{$repo_id}->{svm};
1964 unless (defined $p) {
1965 $p = $full_url;
1966 my $z = $u;
1967 my $prefix = '';
1968 if ($rwr) {
1969 $z = $rwr;
1970 remove_username($z);
1971 } elsif (defined $svm) {
1972 $z = $svm->{source};
1973 $prefix = $svm->{replace};
1974 $prefix =~ s#^\Q$u\E(?:/|$)##;
1975 $prefix =~ s#/$##;
1976 }
1977 $p =~ s#^\Q$z\E(?:/|$)#$prefix# or next;
1978 }
1979 foreach my $f (keys %$fetch) {
1980 next if $f ne $p;
1981 return Git::SVN->new($fetch->{$f}, $repo_id, $f);
1982 }
1983 }
1984 undef;
1985 }
1986
1987 sub init {
1988 my ($class, $url, $path, $repo_id, $ref_id, $no_write) = @_;
1989 my $self = _new($class, $repo_id, $ref_id, $path);
1990 if (defined $url) {
1991 $self->init_remote_config($url, $no_write);
1992 }
1993 $self;
1994 }
1995
1996 sub find_ref {
1997 my ($ref_id) = @_;
1998 foreach (command(qw/config -l/)) {
1999 next unless m!^svn-remote\.(.+)\.fetch=
2000 \s*(.*?)\s*:\s*(.+?)\s*$!x;
2001 my ($repo_id, $path, $ref) = ($1, $2, $3);
2002 if ($ref eq $ref_id) {
2003 $path = '' if ($path =~ m#^\./?#);
2004 return ($repo_id, $path);
2005 }
2006 }
2007 (undef, undef, undef);
2008 }
2009
2010 sub new {
2011 my ($class, $ref_id, $repo_id, $path) = @_;
2012 if (defined $ref_id && !defined $repo_id && !defined $path) {
2013 ($repo_id, $path) = find_ref($ref_id);
2014 if (!defined $repo_id) {
2015 die "Could not find a \"svn-remote.*.fetch\" key ",
2016 "in the repository configuration matching: ",
2017 "$ref_id\n";
2018 }
2019 }
2020 my $self = _new($class, $repo_id, $ref_id, $path);
2021 if (!defined $self->{path} || !length $self->{path}) {
2022 my $fetch = command_oneline('config', '--get',
2023 "svn-remote.$repo_id.fetch",
2024 ":$ref_id\$") or
2025 die "Failed to read \"svn-remote.$repo_id.fetch\" ",
2026 "\":$ref_id\$\" in config\n";
2027 ($self->{path}, undef) = split(/\s*:\s*/, $fetch);
2028 }
2029 $self->{url} = command_oneline('config', '--get',
2030 "svn-remote.$repo_id.url") or
2031 die "Failed to read \"svn-remote.$repo_id.url\" in config\n";
2032 $self->rebuild;
2033 $self;
2034 }
2035
2036 sub refname {
2037 my ($refname) = $_[0]->{ref_id} ;
2038
2039 # It cannot end with a slash /, we'll throw up on this because
2040 # SVN can't have directories with a slash in their name, either:
2041 if ($refname =~ m{/$}) {
2042 die "ref: '$refname' ends with a trailing slash, this is ",
2043 "not permitted by git nor Subversion\n";
2044 }
2045
2046 # It cannot have ASCII control character space, tilde ~, caret ^,
2047 # colon :, question-mark ?, asterisk *, space, or open bracket [
2048 # anywhere.
2049 #
2050 # Additionally, % must be escaped because it is used for escaping
2051 # and we want our escaped refname to be reversible
2052 $refname =~ s{([ \%~\^:\?\*\[\t])}{uc sprintf('%%%02x',ord($1))}eg;
2053
2054 # no slash-separated component can begin with a dot .
2055 # /.* becomes /%2E*
2056 $refname =~ s{/\.}{/%2E}g;
2057
2058 # It cannot have two consecutive dots .. anywhere
2059 # .. becomes %2E%2E
2060 $refname =~ s{\.\.}{%2E%2E}g;
2061
2062 return $refname;
2063 }
2064
2065 sub desanitize_refname {
2066 my ($refname) = @_;
2067 $refname =~ s{%(?:([0-9A-F]{2}))}{chr hex($1)}eg;
2068 return $refname;
2069 }
2070
2071 sub svm_uuid {
2072 my ($self) = @_;
2073 return $self->{svm}->{uuid} if $self->svm;
2074 $self->ra;
2075 unless ($self->{svm}) {
2076 die "SVM UUID not cached, and reading remotely failed\n";
2077 }
2078 $self->{svm}->{uuid};
2079 }
2080
2081 sub svm {
2082 my ($self) = @_;
2083 return $self->{svm} if $self->{svm};
2084 my $svm;
2085 # see if we have it in our config, first:
2086 eval {
2087 my $section = "svn-remote.$self->{repo_id}";
2088 $svm = {
2089 source => tmp_config('--get', "$section.svm-source"),
2090 uuid => tmp_config('--get', "$section.svm-uuid"),
2091 replace => tmp_config('--get', "$section.svm-replace"),
2092 }
2093 };
2094 if ($svm && $svm->{source} && $svm->{uuid} && $svm->{replace}) {
2095 $self->{svm} = $svm;
2096 }
2097 $self->{svm};
2098 }
2099
2100 sub _set_svm_vars {
2101 my ($self, $ra) = @_;
2102 return $ra if $self->svm;
2103
2104 my @err = ( "useSvmProps set, but failed to read SVM properties\n",
2105 "(svm:source, svm:uuid) ",
2106 "from the following URLs:\n" );
2107 sub read_svm_props {
2108 my ($self, $ra, $path, $r) = @_;
2109 my $props = ($ra->get_dir($path, $r))[2];
2110 my $src = $props->{'svm:source'};
2111 my $uuid = $props->{'svm:uuid'};
2112 return undef if (!$src || !$uuid);
2113
2114 chomp($src, $uuid);
2115
2116 $uuid =~ m{^[0-9a-f\-]{30,}$}i
2117 or die "doesn't look right - svm:uuid is '$uuid'\n";
2118
2119 # the '!' is used to mark the repos_root!/relative/path
2120 $src =~ s{/?!/?}{/};
2121 $src =~ s{/+$}{}; # no trailing slashes please
2122 # username is of no interest
2123 $src =~ s{(^[a-z\+]*://)[^/@]*@}{$1};
2124
2125 my $replace = $ra->{url};
2126 $replace .= "/$path" if length $path;
2127
2128 my $section = "svn-remote.$self->{repo_id}";
2129 tmp_config("$section.svm-source", $src);
2130 tmp_config("$section.svm-replace", $replace);
2131 tmp_config("$section.svm-uuid", $uuid);
2132 $self->{svm} = {
2133 source => $src,
2134 uuid => $uuid,
2135 replace => $replace
2136 };
2137 }
2138
2139 my $r = $ra->get_latest_revnum;
2140 my $path = $self->{path};
2141 my %tried;
2142 while (length $path) {
2143 unless ($tried{"$self->{url}/$path"}) {
2144 return $ra if $self->read_svm_props($ra, $path, $r);
2145 $tried{"$self->{url}/$path"} = 1;
2146 }
2147 $path =~ s#/?[^/]+$##;
2148 }
2149 die "Path: '$path' should be ''\n" if $path ne '';
2150 return $ra if $self->read_svm_props($ra, $path, $r);
2151 $tried{"$self->{url}/$path"} = 1;
2152
2153 if ($ra->{repos_root} eq $self->{url}) {
2154 die @err, (map { " $_\n" } keys %tried), "\n";
2155 }
2156
2157 # nope, make sure we're connected to the repository root:
2158 my $ok;
2159 my @tried_b;
2160 $path = $ra->{svn_path};
2161 $ra = Git::SVN::Ra->new($ra->{repos_root});
2162 while (length $path) {
2163 unless ($tried{"$ra->{url}/$path"}) {
2164 $ok = $self->read_svm_props($ra, $path, $r);
2165 last if $ok;
2166 $tried{"$ra->{url}/$path"} = 1;
2167 }
2168 $path =~ s#/?[^/]+$##;
2169 }
2170 die "Path: '$path' should be ''\n" if $path ne '';
2171 $ok ||= $self->read_svm_props($ra, $path, $r);
2172 $tried{"$ra->{url}/$path"} = 1;
2173 if (!$ok) {
2174 die @err, (map { " $_\n" } keys %tried), "\n";
2175 }
2176 Git::SVN::Ra->new($self->{url});
2177 }
2178
2179 sub svnsync {
2180 my ($self) = @_;
2181 return $self->{svnsync} if $self->{svnsync};
2182
2183 if ($self->no_metadata) {
2184 die "Can't have both 'noMetadata' and ",
2185 "'useSvnsyncProps' options set!\n";
2186 }
2187 if ($self->rewrite_root) {
2188 die "Can't have both 'useSvnsyncProps' and 'rewriteRoot' ",
2189 "options set!\n";
2190 }
2191
2192 my $svnsync;
2193 # see if we have it in our config, first:
2194 eval {
2195 my $section = "svn-remote.$self->{repo_id}";
2196
2197 my $url = tmp_config('--get', "$section.svnsync-url");
2198 ($url) = ($url =~ m{^([a-z\+]+://\S+)$}) or
2199 die "doesn't look right - svn:sync-from-url is '$url'\n";
2200
2201 my $uuid = tmp_config('--get', "$section.svnsync-uuid");
2202 ($uuid) = ($uuid =~ m{^([0-9a-f\-]{30,})$}i) or
2203 die "doesn't look right - svn:sync-from-uuid is '$uuid'\n";
2204
2205 $svnsync = { url => $url, uuid => $uuid }
2206 };
2207 if ($svnsync && $svnsync->{url} && $svnsync->{uuid}) {
2208 return $self->{svnsync} = $svnsync;
2209 }
2210
2211 my $err = "useSvnsyncProps set, but failed to read " .
2212 "svnsync property: svn:sync-from-";
2213 my $rp = $self->ra->rev_proplist(0);
2214
2215 my $url = $rp->{'svn:sync-from-url'} or die $err . "url\n";
2216 ($url) = ($url =~ m{^([a-z\+]+://\S+)$}) or
2217 die "doesn't look right - svn:sync-from-url is '$url'\n";
2218
2219 my $uuid = $rp->{'svn:sync-from-uuid'} or die $err . "uuid\n";
2220 ($uuid) = ($uuid =~ m{^([0-9a-f\-]{30,})$}i) or
2221 die "doesn't look right - svn:sync-from-uuid is '$uuid'\n";
2222
2223 my $section = "svn-remote.$self->{repo_id}";
2224 tmp_config('--add', "$section.svnsync-uuid", $uuid);
2225 tmp_config('--add', "$section.svnsync-url", $url);
2226 return $self->{svnsync} = { url => $url, uuid => $uuid };
2227 }
2228
2229 # this allows us to memoize our SVN::Ra UUID locally and avoid a
2230 # remote lookup (useful for 'git svn log').
2231 sub ra_uuid {
2232 my ($self) = @_;
2233 unless ($self->{ra_uuid}) {
2234 my $key = "svn-remote.$self->{repo_id}.uuid";
2235 my $uuid = eval { tmp_config('--get', $key) };
2236 if (!$@ && $uuid && $uuid =~ /^([a-f\d\-]{30,})$/i) {
2237 $self->{ra_uuid} = $uuid;
2238 } else {
2239 die "ra_uuid called without URL\n" unless $self->{url};
2240 $self->{ra_uuid} = $self->ra->get_uuid;
2241 tmp_config('--add', $key, $self->{ra_uuid});
2242 }
2243 }
2244 $self->{ra_uuid};
2245 }
2246
2247 sub _set_repos_root {
2248 my ($self, $repos_root) = @_;
2249 my $k = "svn-remote.$self->{repo_id}.reposRoot";
2250 $repos_root ||= $self->ra->{repos_root};
2251 tmp_config($k, $repos_root);
2252 $repos_root;
2253 }
2254
2255 sub repos_root {
2256 my ($self) = @_;
2257 my $k = "svn-remote.$self->{repo_id}.reposRoot";
2258 eval { tmp_config('--get', $k) } || $self->_set_repos_root;
2259 }
2260
2261 sub ra {
2262 my ($self) = shift;
2263 my $ra = Git::SVN::Ra->new($self->{url});
2264 $self->_set_repos_root($ra->{repos_root});
2265 if ($self->use_svm_props && !$self->{svm}) {
2266 if ($self->no_metadata) {
2267 die "Can't have both 'noMetadata' and ",
2268 "'useSvmProps' options set!\n";
2269 } elsif ($self->use_svnsync_props) {
2270 die "Can't have both 'useSvnsyncProps' and ",
2271 "'useSvmProps' options set!\n";
2272 }
2273 $ra = $self->_set_svm_vars($ra);
2274 $self->{-want_revprops} = 1;
2275 }
2276 $ra;
2277 }
2278
2279 # prop_walk(PATH, REV, SUB)
2280 # -------------------------
2281 # Recursively traverse PATH at revision REV and invoke SUB for each
2282 # directory that contains a SVN property. SUB will be invoked as
2283 # follows: &SUB(gs, path, props); where `gs' is this instance of
2284 # Git::SVN, `path' the path to the directory where the properties
2285 # `props' were found. The `path' will be relative to point of checkout,
2286 # that is, if url://repo/trunk is the current Git branch, and that
2287 # directory contains a sub-directory `d', SUB will be invoked with `/d/'
2288 # as `path' (note the trailing `/').
2289 sub prop_walk {
2290 my ($self, $path, $rev, $sub) = @_;
2291
2292 $path =~ s#^/##;
2293 my ($dirent, undef, $props) = $self->ra->get_dir($path, $rev);
2294 $path =~ s#^/*#/#g;
2295 my $p = $path;
2296 # Strip the irrelevant part of the path.
2297 $p =~ s#^/+\Q$self->{path}\E(/|$)#/#;
2298 # Ensure the path is terminated by a `/'.
2299 $p =~ s#/*$#/#;
2300
2301 # The properties contain all the internal SVN stuff nobody
2302 # (usually) cares about.
2303 my $interesting_props = 0;
2304 foreach (keys %{$props}) {
2305 # If it doesn't start with `svn:', it must be a
2306 # user-defined property.
2307 ++$interesting_props and next if $_ !~ /^svn:/;
2308 # FIXME: Fragile, if SVN adds new public properties,
2309 # this needs to be updated.
2310 ++$interesting_props if /^svn:(?:ignore|keywords|executable
2311 |eol-style|mime-type
2312 |externals|needs-lock)$/x;
2313 }
2314 &$sub($self, $p, $props) if $interesting_props;
2315
2316 foreach (sort keys %$dirent) {
2317 next if $dirent->{$_}->{kind} != $SVN::Node::dir;
2318 $self->prop_walk($self->{path} . $p . $_, $rev, $sub);
2319 }
2320 }
2321
2322 sub last_rev { ($_[0]->last_rev_commit)[0] }
2323 sub last_commit { ($_[0]->last_rev_commit)[1] }
2324
2325 # returns the newest SVN revision number and newest commit SHA1
2326 sub last_rev_commit {
2327 my ($self) = @_;
2328 if (defined $self->{last_rev} && defined $self->{last_commit}) {
2329 return ($self->{last_rev}, $self->{last_commit});
2330 }
2331 my $c = ::verify_ref($self->refname.'^0');
2332 if ($c && !$self->use_svm_props && !$self->no_metadata) {
2333 my $rev = (::cmt_metadata($c))[1];
2334 if (defined $rev) {
2335 ($self->{last_rev}, $self->{last_commit}) = ($rev, $c);
2336 return ($rev, $c);
2337 }
2338 }
2339 my $map_path = $self->map_path;
2340 unless (-e $map_path) {
2341 ($self->{last_rev}, $self->{last_commit}) = (undef, undef);
2342 return (undef, undef);
2343 }
2344 my ($rev, $commit) = $self->rev_map_max(1);
2345 ($self->{last_rev}, $self->{last_commit}) = ($rev, $commit);
2346 return ($rev, $commit);
2347 }
2348
2349 sub get_fetch_range {
2350 my ($self, $min, $max) = @_;
2351 $max ||= $self->ra->get_latest_revnum;
2352 $min ||= $self->rev_map_max;
2353 (++$min, $max);
2354 }
2355
2356 sub tmp_config {
2357 my (@args) = @_;
2358 my $old_def_config = "$ENV{GIT_DIR}/svn/config";
2359 my $config = "$ENV{GIT_DIR}/svn/.metadata";
2360 if (! -f $config && -f $old_def_config) {
2361 rename $old_def_config, $config or
2362 die "Failed rename $old_def_config => $config: $!\n";
2363 }
2364 my $old_config = $ENV{GIT_CONFIG};
2365 $ENV{GIT_CONFIG} = $config;
2366 $@ = undef;
2367 my @ret = eval {
2368 unless (-f $config) {
2369 mkfile($config);
2370 open my $fh, '>', $config or
2371 die "Can't open $config: $!\n";
2372 print $fh "; This file is used internally by ",
2373 "git-svn\n" or die
2374 "Couldn't write to $config: $!\n";
2375 print $fh "; You should not have to edit it\n" or
2376 die "Couldn't write to $config: $!\n";
2377 close $fh or die "Couldn't close $config: $!\n";
2378 }
2379 command('config', @args);
2380 };
2381 my $err = $@;
2382 if (defined $old_config) {
2383 $ENV{GIT_CONFIG} = $old_config;
2384 } else {
2385 delete $ENV{GIT_CONFIG};
2386 }
2387 die $err if $err;
2388 wantarray ? @ret : $ret[0];
2389 }
2390
2391 sub tmp_index_do {
2392 my ($self, $sub) = @_;
2393 my $old_index = $ENV{GIT_INDEX_FILE};
2394 $ENV{GIT_INDEX_FILE} = $self->{index};
2395 $@ = undef;
2396 my @ret = eval {
2397 my ($dir, $base) = ($self->{index} =~ m#^(.*?)/?([^/]+)$#);
2398 mkpath([$dir]) unless -d $dir;
2399 &$sub;
2400 };
2401 my $err = $@;
2402 if (defined $old_index) {
2403 $ENV{GIT_INDEX_FILE} = $old_index;
2404 } else {
2405 delete $ENV{GIT_INDEX_FILE};
2406 }
2407 die $err if $err;
2408 wantarray ? @ret : $ret[0];
2409 }
2410
2411 sub assert_index_clean {
2412 my ($self, $treeish) = @_;
2413
2414 $self->tmp_index_do(sub {
2415 command_noisy('read-tree', $treeish) unless -e $self->{index};
2416 my $x = command_oneline('write-tree');
2417 my ($y) = (command(qw/cat-file commit/, $treeish) =~
2418 /^tree ($::sha1)/mo);
2419 return if $y eq $x;
2420
2421 warn "Index mismatch: $y != $x\nrereading $treeish\n";
2422 unlink $self->{index} or die "unlink $self->{index}: $!\n";
2423 command_noisy('read-tree', $treeish);
2424 $x = command_oneline('write-tree');
2425 if ($y ne $x) {
2426 ::fatal "trees ($treeish) $y != $x\n",
2427 "Something is seriously wrong...";
2428 }
2429 });
2430 }
2431
2432 sub get_commit_parents {
2433 my ($self, $log_entry) = @_;
2434 my (%seen, @ret, @tmp);
2435 # legacy support for 'set-tree'; this is only used by set_tree_cb:
2436 if (my $ip = $self->{inject_parents}) {
2437 if (my $commit = delete $ip->{$log_entry->{revision}}) {
2438 push @tmp, $commit;
2439 }
2440 }
2441 if (my $cur = ::verify_ref($self->refname.'^0')) {
2442 push @tmp, $cur;
2443 }
2444 if (my $ipd = $self->{inject_parents_dcommit}) {
2445 if (my $commit = delete $ipd->{$log_entry->{revision}}) {
2446 push @tmp, @$commit;
2447 }
2448 }
2449 push @tmp, $_ foreach (@{$log_entry->{parents}}, @tmp);
2450 while (my $p = shift @tmp) {
2451 next if $seen{$p};
2452 $seen{$p} = 1;
2453 push @ret, $p;
2454 # MAXPARENT is defined to 16 in commit-tree.c:
2455 last if @ret >= 16;
2456 }
2457 if (@tmp) {
2458 die "r$log_entry->{revision}: No room for parents:\n\t",
2459 join("\n\t", @tmp), "\n";
2460 }
2461 @ret;
2462 }
2463
2464 sub rewrite_root {
2465 my ($self) = @_;
2466 return $self->{-rewrite_root} if exists $self->{-rewrite_root};
2467 my $k = "svn-remote.$self->{repo_id}.rewriteRoot";
2468 my $rwr = eval { command_oneline(qw/config --get/, $k) };
2469 if ($rwr) {
2470 $rwr =~ s#/+$##;
2471 if ($rwr !~ m#^[a-z\+]+://#) {
2472 die "$rwr is not a valid URL (key: $k)\n";
2473 }
2474 }
2475 $self->{-rewrite_root} = $rwr;
2476 }
2477
2478 sub metadata_url {
2479 my ($self) = @_;
2480 ($self->rewrite_root || $self->{url}) .
2481 (length $self->{path} ? '/' . $self->{path} : '');
2482 }
2483
2484 sub full_url {
2485 my ($self) = @_;
2486 $self->{url} . (length $self->{path} ? '/' . $self->{path} : '');
2487 }
2488
2489
2490 sub set_commit_header_env {
2491 my ($log_entry) = @_;
2492 my %env;
2493 foreach my $ned (qw/NAME EMAIL DATE/) {
2494 foreach my $ac (qw/AUTHOR COMMITTER/) {
2495 $env{"GIT_${ac}_${ned}"} = $ENV{"GIT_${ac}_${ned}"};
2496 }
2497 }
2498
2499 $ENV{GIT_AUTHOR_NAME} = $log_entry->{name};
2500 $ENV{GIT_AUTHOR_EMAIL} = $log_entry->{email};
2501 $ENV{GIT_AUTHOR_DATE} = $ENV{GIT_COMMITTER_DATE} = $log_entry->{date};
2502
2503 $ENV{GIT_COMMITTER_NAME} = (defined $log_entry->{commit_name})
2504 ? $log_entry->{commit_name}
2505 : $log_entry->{name};
2506 $ENV{GIT_COMMITTER_EMAIL} = (defined $log_entry->{commit_email})
2507 ? $log_entry->{commit_email}
2508 : $log_entry->{email};
2509 \%env;
2510 }
2511
2512 sub restore_commit_header_env {
2513 my ($env) = @_;
2514 foreach my $ned (qw/NAME EMAIL DATE/) {
2515 foreach my $ac (qw/AUTHOR COMMITTER/) {
2516 my $k = "GIT_${ac}_${ned}";
2517 if (defined $env->{$k}) {
2518 $ENV{$k} = $env->{$k};
2519 } else {
2520 delete $ENV{$k};
2521 }
2522 }
2523 }
2524 }
2525
2526 sub gc {
2527 command_noisy('gc', '--auto');
2528 };
2529
2530 sub do_git_commit {
2531 my ($self, $log_entry) = @_;
2532 my $lr = $self->last_rev;
2533 if (defined $lr && $lr >= $log_entry->{revision}) {
2534 die "Last fetched revision of ", $self->refname,
2535 " was r$lr, but we are about to fetch: ",
2536 "r$log_entry->{revision}!\n";
2537 }
2538 if (my $c = $self->rev_map_get($log_entry->{revision})) {
2539 croak "$log_entry->{revision} = $c already exists! ",
2540 "Why are we refetching it?\n";
2541 }
2542 my $old_env = set_commit_header_env($log_entry);
2543 my $tree = $log_entry->{tree};
2544 if (!defined $tree) {
2545 $tree = $self->tmp_index_do(sub {
2546 command_oneline('write-tree') });
2547 }
2548 die "Tree is not a valid sha1: $tree\n" if $tree !~ /^$::sha1$/o;
2549
2550 my @exec = ('git', 'commit-tree', $tree);
2551 foreach ($self->get_commit_parents($log_entry)) {
2552 push @exec, '-p', $_;
2553 }
2554 defined(my $pid = open3(my $msg_fh, my $out_fh, '>&STDERR', @exec))
2555 or croak $!;
2556 binmode $msg_fh;
2557
2558 # we always get UTF-8 from SVN, but we may want our commits in
2559 # a different encoding.
2560 if (my $enc = Git::config('i18n.commitencoding')) {
2561 require Encode;
2562 Encode::from_to($log_entry->{log}, 'UTF-8', $enc);
2563 }
2564 print $msg_fh $log_entry->{log} or croak $!;
2565 restore_commit_header_env($old_env);
2566 unless ($self->no_metadata) {
2567 print $msg_fh "\ngit-svn-id: $log_entry->{metadata}\n"
2568 or croak $!;
2569 }
2570 $msg_fh->flush == 0 or croak $!;
2571 close $msg_fh or croak $!;
2572 chomp(my $commit = do { local $/; <$out_fh> });
2573 close $out_fh or croak $!;
2574 waitpid $pid, 0;
2575 croak $? if $?;
2576 if ($commit !~ /^$::sha1$/o) {
2577 die "Failed to commit, invalid sha1: $commit\n";
2578 }
2579
2580 $self->rev_map_set($log_entry->{revision}, $commit, 1);
2581
2582 $self->{last_rev} = $log_entry->{revision};
2583 $self->{last_commit} = $commit;
2584 print "r$log_entry->{revision}" unless $::_q > 1;
2585 if (defined $log_entry->{svm_revision}) {
2586 print " (\@$log_entry->{svm_revision})" unless $::_q > 1;
2587 $self->rev_map_set($log_entry->{svm_revision}, $commit,
2588 0, $self->svm_uuid);
2589 }
2590 print " = $commit ($self->{ref_id})\n" unless $::_q > 1;
2591 if (--$_gc_nr == 0) {
2592 $_gc_nr = $_gc_period;
2593 gc();
2594 }
2595 return $commit;
2596 }
2597
2598 sub match_paths {
2599 my ($self, $paths, $r) = @_;
2600 return 1 if $self->{path} eq '';
2601 if (my $path = $paths->{"/$self->{path}"}) {
2602 return ($path->{action} eq 'D') ? 0 : 1;
2603 }
2604 $self->{path_regex} ||= qr/^\/\Q$self->{path}\E\//;
2605 if (grep /$self->{path_regex}/, keys %$paths) {
2606 return 1;
2607 }
2608 my $c = '';
2609 foreach (split m#/#, $self->{path}) {
2610 $c .= "/$_";
2611 next unless ($paths->{$c} &&
2612 ($paths->{$c}->{action} =~ /^[AR]$/));
2613 if ($self->ra->check_path($self->{path}, $r) ==
2614 $SVN::Node::dir) {
2615 return 1;
2616 }
2617 }
2618 return 0;
2619 }
2620
2621 sub find_parent_branch {
2622 my ($self, $paths, $rev) = @_;
2623 return undef unless $self->follow_parent;
2624 unless (defined $paths) {
2625 my $err_handler = $SVN::Error::handler;
2626 $SVN::Error::handler = \&Git::SVN::Ra::skip_unknown_revs;
2627 $self->ra->get_log([$self->{path}], $rev, $rev, 0, 1, 1,
2628 sub { $paths = $_[0] });
2629 $SVN::Error::handler = $err_handler;
2630 }
2631 return undef unless defined $paths;
2632
2633 # look for a parent from another branch:
2634 my @b_path_components = split m#/#, $self->{path};
2635 my @a_path_components;
2636 my $i;
2637 while (@b_path_components) {
2638 $i = $paths->{'/'.join('/', @b_path_components)};
2639 last if $i && defined $i->{copyfrom_path};
2640 unshift(@a_path_components, pop(@b_path_components));
2641 }
2642 return undef unless defined $i && defined $i->{copyfrom_path};
2643 my $branch_from = $i->{copyfrom_path};
2644 if (@a_path_components) {
2645 print STDERR "branch_from: $branch_from => ";
2646 $branch_from .= '/'.join('/', @a_path_components);
2647 print STDERR $branch_from, "\n";
2648 }
2649 my $r = $i->{copyfrom_rev};
2650 my $repos_root = $self->ra->{repos_root};
2651 my $url = $self->ra->{url};
2652 my $new_url = $url . $branch_from;
2653 print STDERR "Found possible branch point: ",
2654 "$new_url => ", $self->full_url, ", $r\n"
2655 unless $::_q > 1;
2656 $branch_from =~ s#^/##;
2657 my $gs = $self->other_gs($new_url, $url,
2658 $branch_from, $r, $self->{ref_id});
2659 my ($r0, $parent) = $gs->find_rev_before($r, 1);
2660 {
2661 my ($base, $head);
2662 if (!defined $r0 || !defined $parent) {
2663 ($base, $head) = parse_revision_argument(0, $r);
2664 } else {
2665 if ($r0 < $r) {
2666 $gs->ra->get_log([$gs->{path}], $r0 + 1, $r, 1,
2667 0, 1, sub { $base = $_[1] - 1 });
2668 }
2669 }
2670 if (defined $base && $base <= $r) {
2671 $gs->fetch($base, $r);
2672 }
2673 ($r0, $parent) = $gs->find_rev_before($r, 1);
2674 }
2675 if (defined $r0 && defined $parent) {
2676 print STDERR "Found branch parent: ($self->{ref_id}) $parent\n"
2677 unless $::_q > 1;
2678 my $ed;
2679 if ($self->ra->can_do_switch) {
2680 $self->assert_index_clean($parent);
2681 print STDERR "Following parent with do_switch\n"
2682 unless $::_q > 1;
2683 # do_switch works with svn/trunk >= r22312, but that
2684 # is not included with SVN 1.4.3 (the latest version
2685 # at the moment), so we can't rely on it
2686 $self->{last_rev} = $r0;
2687 $self->{last_commit} = $parent;
2688 $ed = SVN::Git::Fetcher->new($self, $gs->{path});
2689 $gs->ra->gs_do_switch($r0, $rev, $gs,
2690 $self->full_url, $ed)
2691 or die "SVN connection failed somewhere...\n";
2692 } elsif ($self->ra->trees_match($new_url, $r0,
2693 $self->full_url, $rev)) {
2694 print STDERR "Trees match:\n",
2695 " $new_url\@$r0\n",
2696 " ${\$self->full_url}\@$rev\n",
2697 "Following parent with no changes\n"
2698 unless $::_q > 1;
2699 $self->tmp_index_do(sub {
2700 command_noisy('read-tree', $parent);
2701 });
2702 $self->{last_commit} = $parent;
2703 } else {
2704 print STDERR "Following parent with do_update\n"
2705 unless $::_q > 1;
2706 $ed = SVN::Git::Fetcher->new($self);
2707 $self->ra->gs_do_update($rev, $rev, $self, $ed)
2708 or die "SVN connection failed somewhere...\n";
2709 }
2710 print STDERR "Successfully followed parent\n" unless $::_q > 1;
2711 return $self->make_log_entry($rev, [$parent], $ed);
2712 }
2713 return undef;
2714 }
2715
2716 sub do_fetch {
2717 my ($self, $paths, $rev) = @_;
2718 my $ed;
2719 my ($last_rev, @parents);
2720 if (my $lc = $self->last_commit) {
2721 # we can have a branch that was deleted, then re-added
2722 # under the same name but copied from another path, in
2723 # which case we'll have multiple parents (we don't
2724 # want to break the original ref, nor lose copypath info):
2725 if (my $log_entry = $self->find_parent_branch($paths, $rev)) {
2726 push @{$log_entry->{parents}}, $lc;
2727 return $log_entry;
2728 }
2729 $ed = SVN::Git::Fetcher->new($self);
2730 $last_rev = $self->{last_rev};
2731 $ed->{c} = $lc;
2732 @parents = ($lc);
2733 } else {
2734 $last_rev = $rev;
2735 if (my $log_entry = $self->find_parent_branch($paths, $rev)) {
2736 return $log_entry;
2737 }
2738 $ed = SVN::Git::Fetcher->new($self);
2739 }
2740 unless ($self->ra->gs_do_update($last_rev, $rev, $self, $ed)) {
2741 die "SVN connection failed somewhere...\n";
2742 }
2743 $self->make_log_entry($rev, \@parents, $ed);
2744 }
2745
2746 sub mkemptydirs {
2747 my ($self, $r) = @_;
2748
2749 sub scan {
2750 my ($r, $empty_dirs, $line) = @_;
2751 if (defined $r && $line =~ /^r(\d+)$/) {
2752 return 0 if $1 > $r;
2753 } elsif ($line =~ /^ \+empty_dir: (.+)$/) {
2754 $empty_dirs->{$1} = 1;
2755 } elsif ($line =~ /^ \-empty_dir: (.+)$/) {
2756 my @d = grep {m[^\Q$1\E(/|$)]} (keys %$empty_dirs);
2757 delete @$empty_dirs{@d};
2758 }
2759 1; # continue
2760 };
2761
2762 my %empty_dirs = ();
2763 my $gz_file = "$self->{dir}/unhandled.log.gz";
2764 if (-f $gz_file) {
2765 if (!$can_compress) {
2766 warn "Compress::Zlib could not be found; ",
2767 "empty directories in $gz_file will not be read\n";
2768 } else {
2769 my $gz = Compress::Zlib::gzopen($gz_file, "rb") or
2770 die "Unable to open $gz_file: $!\n";
2771 my $line;
2772 while ($gz->gzreadline($line) > 0) {
2773 scan($r, \%empty_dirs, $line) or last;
2774 }
2775 $gz->gzclose;
2776 }
2777 }
2778
2779 if (open my $fh, '<', "$self->{dir}/unhandled.log") {
2780 binmode $fh or croak "binmode: $!";
2781 while (<$fh>) {
2782 scan($r, \%empty_dirs, $_) or last;
2783 }
2784 close $fh;
2785 }
2786
2787 my $strip = qr/\A\Q$self->{path}\E(?:\/|$)/;
2788 foreach my $d (sort keys %empty_dirs) {
2789 $d = uri_decode($d);
2790 $d =~ s/$strip//;
2791 next if -d $d;
2792 if (-e _) {
2793 warn "$d exists but is not a directory\n";
2794 } else {
2795 print "creating empty directory: $d\n";
2796 mkpath([$d]);
2797 }
2798 }
2799 }
2800
2801 sub get_untracked {
2802 my ($self, $ed) = @_;
2803 my @out;
2804 my $h = $ed->{empty};
2805 foreach (sort keys %$h) {
2806 my $act = $h->{$_} ? '+empty_dir' : '-empty_dir';
2807 push @out, " $act: " . uri_encode($_);
2808 warn "W: $act: $_\n";
2809 }
2810 foreach my $t (qw/dir_prop file_prop/) {
2811 $h = $ed->{$t} or next;
2812 foreach my $path (sort keys %$h) {
2813 my $ppath = $path eq '' ? '.' : $path;
2814 foreach my $prop (sort keys %{$h->{$path}}) {
2815 next if $SKIP_PROP{$prop};
2816 my $v = $h->{$path}->{$prop};
2817 my $t_ppath_prop = "$t: " .
2818 uri_encode($ppath) . ' ' .
2819 uri_encode($prop);
2820 if (defined $v) {
2821 push @out, " +$t_ppath_prop " .
2822 uri_encode($v);
2823 } else {
2824 push @out, " -$t_ppath_prop";
2825 }
2826 }
2827 }
2828 }
2829 foreach my $t (qw/absent_file absent_directory/) {
2830 $h = $ed->{$t} or next;
2831 foreach my $parent (sort keys %$h) {
2832 foreach my $path (sort @{$h->{$parent}}) {
2833 push @out, " $t: " .
2834 uri_encode("$parent/$path");
2835 warn "W: $t: $parent/$path ",
2836 "Insufficient permissions?\n";
2837 }
2838 }
2839 }
2840 \@out;
2841 }
2842
2843 # parse_svn_date(DATE)
2844 # --------------------
2845 # Given a date (in UTC) from Subversion, return a string in the format
2846 # "<TZ Offset> <local date/time>" that Git will use.
2847 #
2848 # By default the parsed date will be in UTC; if $Git::SVN::_localtime
2849 # is true we'll convert it to the local timezone instead.
2850 sub parse_svn_date {
2851 my $date = shift || return '+0000 1970-01-01 00:00:00';
2852 my ($Y,$m,$d,$H,$M,$S) = ($date =~ /^(\d{4})\-(\d\d)\-(\d\d)T
2853 (\d\d)\:(\d\d)\:(\d\d)\.\d*Z$/x) or
2854 croak "Unable to parse date: $date\n";
2855 my $parsed_date; # Set next.
2856
2857 if ($Git::SVN::_localtime) {
2858 # Translate the Subversion datetime to an epoch time.
2859 # Begin by switching ourselves to $date's timezone, UTC.
2860 my $old_env_TZ = $ENV{TZ};
2861 $ENV{TZ} = 'UTC';
2862
2863 my $epoch_in_UTC =
2864 POSIX::strftime('%s', $S, $M, $H, $d, $m - 1, $Y - 1900);
2865
2866 # Determine our local timezone (including DST) at the
2867 # time of $epoch_in_UTC. $Git::SVN::Log::TZ stored the
2868 # value of TZ, if any, at the time we were run.
2869 if (defined $Git::SVN::Log::TZ) {
2870 $ENV{TZ} = $Git::SVN::Log::TZ;
2871 } else {
2872 delete $ENV{TZ};
2873 }
2874
2875 my $our_TZ =
2876 POSIX::strftime('%Z', $S, $M, $H, $d, $m - 1, $Y - 1900);
2877
2878 # This converts $epoch_in_UTC into our local timezone.
2879 my ($sec, $min, $hour, $mday, $mon, $year,
2880 $wday, $yday, $isdst) = localtime($epoch_in_UTC);
2881
2882 $parsed_date = sprintf('%s %04d-%02d-%02d %02d:%02d:%02d',
2883 $our_TZ, $year + 1900, $mon + 1,
2884 $mday, $hour, $min, $sec);
2885
2886 # Reset us to the timezone in effect when we entered
2887 # this routine.
2888 if (defined $old_env_TZ) {
2889 $ENV{TZ} = $old_env_TZ;
2890 } else {
2891 delete $ENV{TZ};
2892 }
2893 } else {
2894 $parsed_date = "+0000 $Y-$m-$d $H:$M:$S";
2895 }
2896
2897 return $parsed_date;
2898 }
2899
2900 sub other_gs {
2901 my ($self, $new_url, $url,
2902 $branch_from, $r, $old_ref_id) = @_;
2903 my $gs = Git::SVN->find_by_url($new_url, $url, $branch_from);
2904 unless ($gs) {
2905 my $ref_id = $old_ref_id;
2906 $ref_id =~ s/\@\d+$//;
2907 $ref_id .= "\@$r";
2908 # just grow a tail if we're not unique enough :x
2909 $ref_id .= '-' while find_ref($ref_id);
2910 print STDERR "Initializing parent: $ref_id\n" unless $::_q > 1;
2911 my ($u, $p, $repo_id) = ($new_url, '', $ref_id);
2912 if ($u =~ s#^\Q$url\E(/|$)##) {
2913 $p = $u;
2914 $u = $url;
2915 $repo_id = $self->{repo_id};
2916 }
2917 $gs = Git::SVN->init($u, $p, $repo_id, $ref_id, 1);
2918 }
2919 $gs
2920 }
2921
2922 sub call_authors_prog {
2923 my ($orig_author) = @_;
2924 $orig_author = command_oneline('rev-parse', '--sq-quote', $orig_author);
2925 my $author = `$::_authors_prog $orig_author`;
2926 if ($? != 0) {
2927 die "$::_authors_prog failed with exit code $?\n"
2928 }
2929 if ($author =~ /^\s*(.+?)\s*<(.*)>\s*$/) {
2930 my ($name, $email) = ($1, $2);
2931 $email = undef if length $2 == 0;
2932 return [$name, $email];
2933 } else {
2934 die "Author: $orig_author: $::_authors_prog returned "
2935 . "invalid author format: $author\n";
2936 }
2937 }
2938
2939 sub check_author {
2940 my ($author) = @_;
2941 if (!defined $author || length $author == 0) {
2942 $author = '(no author)';
2943 }
2944 if (!defined $::users{$author}) {
2945 if (defined $::_authors_prog) {
2946 $::users{$author} = call_authors_prog($author);
2947 } elsif (defined $::_authors) {
2948 die "Author: $author not defined in $::_authors file\n";
2949 }
2950 }
2951 $author;
2952 }
2953
2954 sub find_extra_svk_parents {
2955 my ($self, $ed, $tickets, $parents) = @_;
2956 # aha! svk:merge property changed...
2957 my @tickets = split "\n", $tickets;
2958 my @known_parents;
2959 for my $ticket ( @tickets ) {
2960 my ($uuid, $path, $rev) = split /:/, $ticket;
2961 if ( $uuid eq $self->ra_uuid ) {
2962 my $url = $self->rewrite_root || $self->{url};
2963 my $repos_root = $url;
2964 my $branch_from = $path;
2965 $branch_from =~ s{^/}{};
2966 my $gs = $self->other_gs($repos_root."/".$branch_from,
2967 $url,
2968 $branch_from,
2969 $rev,
2970 $self->{ref_id});
2971 if ( my $commit = $gs->rev_map_get($rev, $uuid) ) {
2972 # wahey! we found it, but it might be
2973 # an old one (!)
2974 push @known_parents, [ $rev, $commit ];
2975 }
2976 }
2977 }
2978 # Ordering matters; highest-numbered commit merge tickets
2979 # first, as they may account for later merge ticket additions
2980 # or changes.
2981 @known_parents = map {$_->[1]} sort {$b->[0] <=> $a->[0]} @known_parents;
2982 for my $parent ( @known_parents ) {
2983 my @cmd = ('rev-list', $parent, map { "^$_" } @$parents );
2984 my ($msg_fh, $ctx) = command_output_pipe(@cmd);
2985 my $new;
2986 while ( <$msg_fh> ) {
2987 $new=1;last;
2988 }
2989 command_close_pipe($msg_fh, $ctx);
2990 if ( $new ) {
2991 print STDERR
2992 "Found merge parent (svk:merge ticket): $parent\n";
2993 push @$parents, $parent;
2994 }
2995 }
2996 }
2997
2998 sub lookup_svn_merge {
2999 my $uuid = shift;
3000 my $url = shift;
3001 my $merge = shift;
3002
3003 my ($source, $revs) = split ":", $merge;
3004 my $path = $source;
3005 $path =~ s{^/}{};
3006 my $gs = Git::SVN->find_by_url($url.$source, $url, $path);
3007 if ( !$gs ) {
3008 warn "Couldn't find revmap for $url$source\n";
3009 return;
3010 }
3011 my @ranges = split ",", $revs;
3012 my ($tip, $tip_commit);
3013 my @merged_commit_ranges;
3014 # find the tip
3015 for my $range ( @ranges ) {
3016 my ($bottom, $top) = split "-", $range;
3017 $top ||= $bottom;
3018 my $bottom_commit =
3019 $gs->rev_map_get($bottom, $uuid) ||
3020 $gs->rev_map_get($bottom+1, $uuid);
3021 my $top_commit;
3022 for (; !$top_commit && $top >= $bottom; --$top) {
3023 $top_commit =
3024 $gs->rev_map_get($top, $uuid);
3025 }
3026
3027 unless ($top_commit and $bottom_commit) {
3028 warn "W:unknown path/rev in svn:mergeinfo "
3029 ."dirprop: $source:$range\n";
3030 next;
3031 }
3032
3033 push @merged_commit_ranges,
3034 "$bottom_commit..$top_commit";
3035
3036 if ( !defined $tip or $top > $tip ) {
3037 $tip = $top;
3038 $tip_commit = $top_commit;
3039 }
3040 }
3041 return ($tip_commit, @merged_commit_ranges);
3042 }
3043 BEGIN {
3044 memoize 'lookup_svn_merge';
3045 }
3046
3047 # note: this function should only be called if the various dirprops
3048 # have actually changed
3049 sub find_extra_svn_parents {
3050 my ($self, $ed, $mergeinfo, $parents) = @_;
3051 # aha! svk:merge property changed...
3052
3053 # We first search for merged tips which are not in our
3054 # history. Then, we figure out which git revisions are in
3055 # that tip, but not this revision. If all of those revisions
3056 # are now marked as merge, we can add the tip as a parent.
3057 my @merges = split "\n", $mergeinfo;
3058 my @merge_tips;
3059 my @merged_commit_ranges;
3060 my $url = $self->rewrite_root || $self->{url};
3061 my $uuid = $self->ra_uuid;
3062 for my $merge ( @merges ) {
3063 my ($tip_commit, @ranges) =
3064 lookup_svn_merge( $uuid, $url, $merge );
3065 push @merged_commit_ranges, @ranges;
3066 unless (!$tip_commit or
3067 grep { $_ eq $tip_commit } @$parents ) {
3068 push @merge_tips, $tip_commit;
3069 } else {
3070 push @merge_tips, undef;
3071 }
3072 }
3073 for my $merge_tip ( @merge_tips ) {
3074 my $spec = shift @merges;
3075 next unless $merge_tip;
3076 my @cmd = ('rev-list', "-1", $merge_tip,
3077 "--not", @$parents );
3078 my ($msg_fh, $ctx) = command_output_pipe(@cmd);
3079 my $new;
3080 while ( <$msg_fh> ) {
3081 $new=1;last;
3082 }
3083 command_close_pipe($msg_fh, $ctx);
3084 if ( $new ) {
3085 push @cmd, @merged_commit_ranges;
3086 my ($msg_fh, $ctx) = command_output_pipe(@cmd);
3087 my $unmerged;
3088 while ( <$msg_fh> ) {
3089 $unmerged=1;last;
3090 }
3091 command_close_pipe($msg_fh, $ctx);
3092 if ( $unmerged ) {
3093 warn "W:svn cherry-pick ignored ($spec)\n";
3094 } else {
3095 warn
3096 "Found merge parent (svn:mergeinfo prop): ",
3097 $merge_tip, "\n";
3098 push @$parents, $merge_tip;
3099 }
3100 }
3101 }
3102 }
3103
3104 sub make_log_entry {
3105 my ($self, $rev, $parents, $ed) = @_;
3106 my $untracked = $self->get_untracked($ed);
3107
3108 my @parents = @$parents;
3109 my $ps = $ed->{path_strip} || "";
3110 for my $path ( grep { m/$ps/ } %{$ed->{dir_prop}} ) {
3111 my $props = $ed->{dir_prop}{$path};
3112 if ( $props->{"svk:merge"} ) {
3113 $self->find_extra_svk_parents
3114 ($ed, $props->{"svk:merge"}, \@parents);
3115 }
3116 if ( $props->{"svn:mergeinfo"} ) {
3117 $self->find_extra_svn_parents
3118 ($ed,
3119 $props->{"svn:mergeinfo"},
3120 \@parents);
3121 }
3122 }
3123
3124 open my $un, '>>', "$self->{dir}/unhandled.log" or croak $!;
3125 print $un "r$rev\n" or croak $!;
3126 print $un $_, "\n" foreach @$untracked;
3127 my %log_entry = ( parents => \@parents, revision => $rev,
3128 log => '');
3129
3130 my $headrev;
3131 my $logged = delete $self->{logged_rev_props};
3132 if (!$logged || $self->{-want_revprops}) {
3133 my $rp = $self->ra->rev_proplist($rev);
3134 foreach (sort keys %$rp) {
3135 my $v = $rp->{$_};
3136 if (/^svn:(author|date|log)$/) {
3137 $log_entry{$1} = $v;
3138 } elsif ($_ eq 'svm:headrev') {
3139 $headrev = $v;
3140 } else {
3141 print $un " rev_prop: ", uri_encode($_), ' ',
3142 uri_encode($v), "\n";
3143 }
3144 }
3145 } else {
3146 map { $log_entry{$_} = $logged->{$_} } keys %$logged;
3147 }
3148 close $un or croak $!;
3149
3150 $log_entry{date} = parse_svn_date($log_entry{date});
3151 $log_entry{log} .= "\n";
3152 my $author = $log_entry{author} = check_author($log_entry{author});
3153 my ($name, $email) = defined $::users{$author} ? @{$::users{$author}}
3154 : ($author, undef);
3155
3156 my ($commit_name, $commit_email) = ($name, $email);
3157 if ($_use_log_author) {
3158 my $name_field;
3159 if ($log_entry{log} =~ /From:\s+(.*\S)\s*\n/i) {
3160 $name_field = $1;
3161 } elsif ($log_entry{log} =~ /Signed-off-by:\s+(.*\S)\s*\n/i) {
3162 $name_field = $1;
3163 }
3164 if (!defined $name_field) {
3165 if (!defined $email) {
3166 $email = $name;
3167 }
3168 } elsif ($name_field =~ /(.*?)\s+<(.*)>/) {
3169 ($name, $email) = ($1, $2);
3170 } elsif ($name_field =~ /(.*)@/) {
3171 ($name, $email) = ($1, $name_field);
3172 } else {
3173 ($name, $email) = ($name_field, $name_field);
3174 }
3175 }
3176 if (defined $headrev && $self->use_svm_props) {
3177 if ($self->rewrite_root) {
3178 die "Can't have both 'useSvmProps' and 'rewriteRoot' ",
3179 "options set!\n";
3180 }
3181 my ($uuid, $r) = $headrev =~ m{^([a-f\d\-]{30,}):(\d+)$}i;
3182 # we don't want "SVM: initializing mirror for junk" ...
3183 return undef if $r == 0;
3184 my $svm = $self->svm;
3185 if ($uuid ne $svm->{uuid}) {
3186 die "UUID mismatch on SVM path:\n",
3187 "expected: $svm->{uuid}\n",
3188 " got: $uuid\n";
3189 }
3190 my $full_url = $self->full_url;
3191 $full_url =~ s#^\Q$svm->{replace}\E(/|$)#$svm->{source}$1# or
3192 die "Failed to replace '$svm->{replace}' with ",
3193 "'$svm->{source}' in $full_url\n";
3194 # throw away username for storing in records
3195 remove_username($full_url);
3196 $log_entry{metadata} = "$full_url\@$r $uuid";
3197 $log_entry{svm_revision} = $r;
3198 $email ||= "$author\@$uuid";
3199 $commit_email ||= "$author\@$uuid";
3200 } elsif ($self->use_svnsync_props) {
3201 my $full_url = $self->svnsync->{url};
3202 $full_url .= "/$self->{path}" if length $self->{path};
3203 remove_username($full_url);
3204 my $uuid = $self->svnsync->{uuid};
3205 $log_entry{metadata} = "$full_url\@$rev $uuid";
3206 $email ||= "$author\@$uuid";
3207 $commit_email ||= "$author\@$uuid";
3208 } else {
3209 my $url = $self->metadata_url;
3210 remove_username($url);
3211 $log_entry{metadata} = "$url\@$rev " .
3212 $self->ra->get_uuid;
3213 $email ||= "$author\@" . $self->ra->get_uuid;
3214 $commit_email ||= "$author\@" . $self->ra->get_uuid;
3215 }
3216 $log_entry{name} = $name;
3217 $log_entry{email} = $email;
3218 $log_entry{commit_name} = $commit_name;
3219 $log_entry{commit_email} = $commit_email;
3220 \%log_entry;
3221 }
3222
3223 sub fetch {
3224 my ($self, $min_rev, $max_rev, @parents) = @_;
3225 my ($last_rev, $last_commit) = $self->last_rev_commit;
3226 my ($base, $head) = $self->get_fetch_range($min_rev, $max_rev);
3227 $self->ra->gs_fetch_loop_common($base, $head, [$self]);
3228 }
3229
3230 sub set_tree_cb {
3231 my ($self, $log_entry, $tree, $rev, $date, $author) = @_;
3232 $self->{inject_parents} = { $rev => $tree };
3233 $self->fetch(undef, undef);
3234 }
3235
3236 sub set_tree {
3237 my ($self, $tree) = (shift, shift);
3238 my $log_entry = ::get_commit_entry($tree);
3239 unless ($self->{last_rev}) {
3240 ::fatal("Must have an existing revision to commit");
3241 }
3242 my %ed_opts = ( r => $self->{last_rev},
3243 log => $log_entry->{log},
3244 ra => $self->ra,
3245 tree_a => $self->{last_commit},
3246 tree_b => $tree,
3247 editor_cb => sub {
3248 $self->set_tree_cb($log_entry, $tree, @_) },
3249 svn_path => $self->{path} );
3250 if (!SVN::Git::Editor->new(\%ed_opts)->apply_diff) {
3251 print "No changes\nr$self->{last_rev} = $tree\n";
3252 }
3253 }
3254
3255 sub rebuild_from_rev_db {
3256 my ($self, $path) = @_;
3257 my $r = -1;
3258 open my $fh, '<', $path or croak "open: $!";
3259 binmode $fh or croak "binmode: $!";
3260 while (<$fh>) {
3261 length($_) == 41 or croak "inconsistent size in ($_) != 41";
3262 chomp($_);
3263 ++$r;
3264 next if $_ eq ('0' x 40);
3265 $self->rev_map_set($r, $_);
3266 print "r$r = $_\n";
3267 }
3268 close $fh or croak "close: $!";
3269 unlink $path or croak "unlink: $!";
3270 }
3271
3272 sub rebuild {
3273 my ($self) = @_;
3274 my $map_path = $self->map_path;
3275 my $partial = (-e $map_path && ! -z $map_path);
3276 return unless ::verify_ref($self->refname.'^0');
3277 if (!$partial && ($self->use_svm_props || $self->no_metadata)) {
3278 my $rev_db = $self->rev_db_path;
3279 $self->rebuild_from_rev_db($rev_db);
3280 if ($self->use_svm_props) {
3281 my $svm_rev_db = $self->rev_db_path($self->svm_uuid);
3282 $self->rebuild_from_rev_db($svm_rev_db);
3283 }
3284 $self->unlink_rev_db_symlink;
3285 return;
3286 }
3287 print "Rebuilding $map_path ...\n" if (!$partial);
3288 my ($base_rev, $head) = ($partial ? $self->rev_map_max_norebuild(1) :
3289 (undef, undef));
3290 my ($log, $ctx) =
3291 command_output_pipe(qw/rev-list --pretty=raw --no-color --reverse/,
3292 ($head ? "$head.." : "") . $self->refname,
3293 '--');
3294 my $metadata_url = $self->metadata_url;
3295 remove_username($metadata_url);
3296 my $svn_uuid = $self->ra_uuid;
3297 my $c;
3298 while (<$log>) {
3299 if ( m{^commit ($::sha1)$} ) {
3300 $c = $1;
3301 next;
3302 }
3303 next unless s{^\s*(git-svn-id:)}{$1};
3304 my ($url, $rev, $uuid) = ::extract_metadata($_);
3305 remove_username($url);
3306
3307 # ignore merges (from set-tree)
3308 next if (!defined $rev || !$uuid);
3309
3310 # if we merged or otherwise started elsewhere, this is
3311 # how we break out of it
3312 if (($uuid ne $svn_uuid) ||
3313 ($metadata_url && $url && ($url ne $metadata_url))) {
3314 next;
3315 }
3316 if ($partial && $head) {
3317 print "Partial-rebuilding $map_path ...\n";
3318 print "Currently at $base_rev = $head\n";
3319 $head = undef;
3320 }
3321
3322 $self->rev_map_set($rev, $c);
3323 print "r$rev = $c\n";
3324 }
3325 command_close_pipe($log, $ctx);
3326 print "Done rebuilding $map_path\n" if (!$partial || !$head);
3327 my $rev_db_path = $self->rev_db_path;
3328 if (-f $self->rev_db_path) {
3329 unlink $self->rev_db_path or croak "unlink: $!";
3330 }
3331 $self->unlink_rev_db_symlink;
3332 }
3333
3334 # rev_map:
3335 # Tie::File seems to be prone to offset errors if revisions get sparse,
3336 # it's not that fast, either. Tie::File is also not in Perl 5.6. So
3337 # one of my favorite modules is out :< Next up would be one of the DBM
3338 # modules, but I'm not sure which is most portable...
3339 #
3340 # This is the replacement for the rev_db format, which was too big
3341 # and inefficient for large repositories with a lot of sparse history
3342 # (mainly tags)
3343 #
3344 # The format is this:
3345 # - 24 bytes for every record,
3346 # * 4 bytes for the integer representing an SVN revision number
3347 # * 20 bytes representing the sha1 of a git commit
3348 # - No empty padding records like the old format
3349 # (except the last record, which can be overwritten)
3350 # - new records are written append-only since SVN revision numbers
3351 # increase monotonically
3352 # - lookups on SVN revision number are done via a binary search
3353 # - Piping the file to xxd -c24 is a good way of dumping it for
3354 # viewing or editing (piped back through xxd -r), should the need
3355 # ever arise.
3356 # - The last record can be padding revision with an all-zero sha1
3357 # This is used to optimize fetch performance when using multiple
3358 # "fetch" directives in .git/config
3359 #
3360 # These files are disposable unless noMetadata or useSvmProps is set
3361
3362 sub _rev_map_set {
3363 my ($fh, $rev, $commit) = @_;
3364
3365 binmode $fh or croak "binmode: $!";
3366 my $size = (stat($fh))[7];
3367 ($size % 24) == 0 or croak "inconsistent size: $size";
3368
3369 my $wr_offset = 0;
3370 if ($size > 0) {
3371 sysseek($fh, -24, SEEK_END) or croak "seek: $!";
3372 my $read = sysread($fh, my $buf, 24) or croak "read: $!";
3373 $read == 24 or croak "read only $read bytes (!= 24)";
3374 my ($last_rev, $last_commit) = unpack(rev_map_fmt, $buf);
3375 if ($last_commit eq ('0' x40)) {
3376 if ($size >= 48) {
3377 sysseek($fh, -48, SEEK_END) or croak "seek: $!";
3378 $read = sysread($fh, $buf, 24) or
3379 croak "read: $!";
3380 $read == 24 or
3381 croak "read only $read bytes (!= 24)";
3382 ($last_rev, $last_commit) =
3383 unpack(rev_map_fmt, $buf);
3384 if ($last_commit eq ('0' x40)) {
3385 croak "inconsistent .rev_map\n";
3386 }
3387 }
3388 if ($last_rev >= $rev) {
3389 croak "last_rev is higher!: $last_rev >= $rev";
3390 }
3391 $wr_offset = -24;
3392 }
3393 }
3394 sysseek($fh, $wr_offset, SEEK_END) or croak "seek: $!";
3395 syswrite($fh, pack(rev_map_fmt, $rev, $commit), 24) == 24 or
3396 croak "write: $!";
3397 }
3398
3399 sub _rev_map_reset {
3400 my ($fh, $rev, $commit) = @_;
3401 my $c = _rev_map_get($fh, $rev);
3402 $c eq $commit or die "_rev_map_reset(@_) commit $c does not match!\n";
3403 my $offset = sysseek($fh, 0, SEEK_CUR) or croak "seek: $!";
3404 truncate $fh, $offset or croak "truncate: $!";
3405 }
3406
3407 sub mkfile {
3408 my ($path) = @_;
3409 unless (-e $path) {
3410 my ($dir, $base) = ($path =~ m#^(.*?)/?([^/]+)$#);
3411 mkpath([$dir]) unless -d $dir;
3412 open my $fh, '>>', $path or die "Couldn't create $path: $!\n";
3413 close $fh or die "Couldn't close (create) $path: $!\n";
3414 }
3415 }
3416
3417 sub rev_map_set {
3418 my ($self, $rev, $commit, $update_ref, $uuid) = @_;
3419 length $commit == 40 or die "arg3 must be a full SHA1 hexsum\n";
3420 my $db = $self->map_path($uuid);
3421 my $db_lock = "$db.lock";
3422 my $sig;
3423 $update_ref ||= 0;
3424 if ($update_ref) {
3425 $SIG{INT} = $SIG{HUP} = $SIG{TERM} = $SIG{ALRM} = $SIG{PIPE} =
3426 $SIG{USR1} = $SIG{USR2} = sub { $sig = $_[0] };
3427 }
3428 mkfile($db);
3429
3430 $LOCKFILES{$db_lock} = 1;
3431 my $sync;
3432 # both of these options make our .rev_db file very, very important
3433 # and we can't afford to lose it because rebuild() won't work
3434 if ($self->use_svm_props || $self->no_metadata) {
3435 $sync = 1;
3436 copy($db, $db_lock) or die "rev_map_set(@_): ",
3437 "Failed to copy: ",
3438 "$db => $db_lock ($!)\n";
3439 } else {
3440 rename $db, $db_lock or die "rev_map_set(@_): ",
3441 "Failed to rename: ",
3442 "$db => $db_lock ($!)\n";
3443 }
3444
3445 sysopen(my $fh, $db_lock, O_RDWR | O_CREAT)
3446 or croak "Couldn't open $db_lock: $!\n";
3447 $update_ref eq 'reset' ? _rev_map_reset($fh, $rev, $commit) :
3448 _rev_map_set($fh, $rev, $commit);
3449 if ($sync) {
3450 $fh->flush or die "Couldn't flush $db_lock: $!\n";
3451 $fh->sync or die "Couldn't sync $db_lock: $!\n";
3452 }
3453 close $fh or croak $!;
3454 if ($update_ref) {
3455 $_head = $self;
3456 my $note = "";
3457 $note = " ($update_ref)" if ($update_ref !~ /^\d*$/);
3458 command_noisy('update-ref', '-m', "r$rev$note",
3459 $self->refname, $commit);
3460 }
3461 rename $db_lock, $db or die "rev_map_set(@_): ", "Failed to rename: ",
3462 "$db_lock => $db ($!)\n";
3463 delete $LOCKFILES{$db_lock};
3464 if ($update_ref) {
3465 $SIG{INT} = $SIG{HUP} = $SIG{TERM} = $SIG{ALRM} = $SIG{PIPE} =
3466 $SIG{USR1} = $SIG{USR2} = 'DEFAULT';
3467 kill $sig, $$ if defined $sig;
3468 }
3469 }
3470
3471 # If want_commit, this will return an array of (rev, commit) where
3472 # commit _must_ be a valid commit in the archive.
3473 # Otherwise, it'll return the max revision (whether or not the
3474 # commit is valid or just a 0x40 placeholder).
3475 sub rev_map_max {
3476 my ($self, $want_commit) = @_;
3477 $self->rebuild;
3478 my ($r, $c) = $self->rev_map_max_norebuild($want_commit);
3479 $want_commit ? ($r, $c) : $r;
3480 }
3481
3482 sub rev_map_max_norebuild {
3483 my ($self, $want_commit) = @_;
3484 my $map_path = $self->map_path;
3485 stat $map_path or return $want_commit ? (0, undef) : 0;
3486 sysopen(my $fh, $map_path, O_RDONLY) or croak "open: $!";
3487 binmode $fh or croak "binmode: $!";
3488 my $size = (stat($fh))[7];
3489 ($size % 24) == 0 or croak "inconsistent size: $size";
3490
3491 if ($size == 0) {
3492 close $fh or croak "close: $!";
3493 return $want_commit ? (0, undef) : 0;
3494 }
3495
3496 sysseek($fh, -24, SEEK_END) or croak "seek: $!";
3497 sysread($fh, my $buf, 24) == 24 or croak "read: $!";
3498 my ($r, $c) = unpack(rev_map_fmt, $buf);
3499 if ($want_commit && $c eq ('0' x40)) {
3500 if ($size < 48) {
3501 return $want_commit ? (0, undef) : 0;
3502 }
3503 sysseek($fh, -48, SEEK_END) or croak "seek: $!";
3504 sysread($fh, $buf, 24) == 24 or croak "read: $!";
3505 ($r, $c) = unpack(rev_map_fmt, $buf);
3506 if ($c eq ('0'x40)) {
3507 croak "Penultimate record is all-zeroes in $map_path";
3508 }
3509 }
3510 close $fh or croak "close: $!";
3511 $want_commit ? ($r, $c) : $r;
3512 }
3513
3514 sub rev_map_get {
3515 my ($self, $rev, $uuid) = @_;
3516 my $map_path = $self->map_path($uuid);
3517 return undef unless -e $map_path;
3518
3519 sysopen(my $fh, $map_path, O_RDONLY) or croak "open: $!";
3520 my $c = _rev_map_get($fh, $rev);
3521 close($fh) or croak "close: $!";
3522 $c
3523 }
3524
3525 sub _rev_map_get {
3526 my ($fh, $rev) = @_;
3527
3528 binmode $fh or croak "binmode: $!";
3529 my $size = (stat($fh))[7];
3530 ($size % 24) == 0 or croak "inconsistent size: $size";
3531
3532 if ($size == 0) {
3533 return undef;
3534 }
3535
3536 my ($l, $u) = (0, $size - 24);
3537 my ($r, $c, $buf);
3538
3539 while ($l <= $u) {
3540 my $i = int(($l/24 + $u/24) / 2) * 24;
3541 sysseek($fh, $i, SEEK_SET) or croak "seek: $!";
3542 sysread($fh, my $buf, 24) == 24 or croak "read: $!";
3543 my ($r, $c) = unpack(rev_map_fmt, $buf);
3544
3545 if ($r < $rev) {
3546 $l = $i + 24;
3547 } elsif ($r > $rev) {
3548 $u = $i - 24;
3549 } else { # $r == $rev
3550 return $c eq ('0' x 40) ? undef : $c;
3551 }
3552 }
3553 undef;
3554 }
3555
3556 # Finds the first svn revision that exists on (if $eq_ok is true) or
3557 # before $rev for the current branch. It will not search any lower
3558 # than $min_rev. Returns the git commit hash and svn revision number
3559 # if found, else (undef, undef).
3560 sub find_rev_before {
3561 my ($self, $rev, $eq_ok, $min_rev) = @_;
3562 --$rev unless $eq_ok;
3563 $min_rev ||= 1;
3564 my $max_rev = $self->rev_map_max;
3565 $rev = $max_rev if ($rev > $max_rev);
3566 while ($rev >= $min_rev) {
3567 if (my $c = $self->rev_map_get($rev)) {
3568 return ($rev, $c);
3569 }
3570 --$rev;
3571 }
3572 return (undef, undef);
3573 }
3574
3575 # Finds the first svn revision that exists on (if $eq_ok is true) or
3576 # after $rev for the current branch. It will not search any higher
3577 # than $max_rev. Returns the git commit hash and svn revision number
3578 # if found, else (undef, undef).
3579 sub find_rev_after {
3580 my ($self, $rev, $eq_ok, $max_rev) = @_;
3581 ++$rev unless $eq_ok;
3582 $max_rev ||= $self->rev_map_max;
3583 while ($rev <= $max_rev) {
3584 if (my $c = $self->rev_map_get($rev)) {
3585 return ($rev, $c);
3586 }
3587 ++$rev;
3588 }
3589 return (undef, undef);
3590 }
3591
3592 sub _new {
3593 my ($class, $repo_id, $ref_id, $path) = @_;
3594 unless (defined $repo_id && length $repo_id) {
3595 $repo_id = $Git::SVN::default_repo_id;
3596 }
3597 unless (defined $ref_id && length $ref_id) {
3598 $_prefix = '' unless defined($_prefix);
3599 $_[2] = $ref_id =
3600 "refs/remotes/$_prefix$Git::SVN::default_ref_id";
3601 }
3602 $_[1] = $repo_id;
3603 my $dir = "$ENV{GIT_DIR}/svn/$ref_id";
3604
3605 # Older repos imported by us used $GIT_DIR/svn/foo instead of
3606 # $GIT_DIR/svn/refs/remotes/foo when tracking refs/remotes/foo
3607 if ($ref_id =~ m{^refs/remotes/(.*)}) {
3608 my $old_dir = "$ENV{GIT_DIR}/svn/$1";
3609 if (-d $old_dir && ! -d $dir) {
3610 $dir = $old_dir;
3611 }
3612 }
3613
3614 $_[3] = $path = '' unless (defined $path);
3615 mkpath([$dir]);
3616 bless {
3617 ref_id => $ref_id, dir => $dir, index => "$dir/index",
3618 path => $path, config => "$ENV{GIT_DIR}/svn/config",
3619 map_root => "$dir/.rev_map", repo_id => $repo_id }, $class;
3620 }
3621
3622 # for read-only access of old .rev_db formats
3623 sub unlink_rev_db_symlink {
3624 my ($self) = @_;
3625 my $link = $self->rev_db_path;
3626 $link =~ s/\.[\w-]+$// or croak "missing UUID at the end of $link";
3627 if (-l $link) {
3628 unlink $link or croak "unlink: $link failed!";
3629 }
3630 }
3631
3632 sub rev_db_path {
3633 my ($self, $uuid) = @_;
3634 my $db_path = $self->map_path($uuid);
3635 $db_path =~ s{/\.rev_map\.}{/\.rev_db\.}
3636 or croak "map_path: $db_path does not contain '/.rev_map.' !";
3637 $db_path;
3638 }
3639
3640 # the new replacement for .rev_db
3641 sub map_path {
3642 my ($self, $uuid) = @_;
3643 $uuid ||= $self->ra_uuid;
3644 "$self->{map_root}.$uuid";
3645 }
3646
3647 sub uri_encode {
3648 my ($f) = @_;
3649 $f =~ s#([^a-zA-Z0-9\*!\:_\./\-])#uc sprintf("%%%02x",ord($1))#eg;
3650 $f
3651 }
3652
3653 sub uri_decode {
3654 my ($f) = @_;
3655 $f =~ s#%([0-9a-fA-F]{2})#chr(hex($1))#eg;
3656 $f
3657 }
3658
3659 sub remove_username {
3660 $_[0] =~ s{^([^:]*://)[^@]+@}{$1};
3661 }
3662
3663 package Git::SVN::Prompt;
3664 use strict;
3665 use warnings;
3666 require SVN::Core;
3667 use vars qw/$_no_auth_cache $_username/;
3668
3669 sub simple {
3670 my ($cred, $realm, $default_username, $may_save, $pool) = @_;
3671 $may_save = undef if $_no_auth_cache;
3672 $default_username = $_username if defined $_username;
3673 if (defined $default_username && length $default_username) {
3674 if (defined $realm && length $realm) {
3675 print STDERR "Authentication realm: $realm\n";
3676 STDERR->flush;
3677 }
3678 $cred->username($default_username);
3679 } else {
3680 username($cred, $realm, $may_save, $pool);
3681 }
3682 $cred->password(_read_password("Password for '" .
3683 $cred->username . "': ", $realm));
3684 $cred->may_save($may_save);
3685 $SVN::_Core::SVN_NO_ERROR;
3686 }
3687
3688 sub ssl_server_trust {
3689 my ($cred, $realm, $failures, $cert_info, $may_save, $pool) = @_;
3690 $may_save = undef if $_no_auth_cache;
3691 print STDERR "Error validating server certificate for '$realm':\n";
3692 {
3693 no warnings 'once';
3694 # All variables SVN::Auth::SSL::* are used only once,
3695 # so we're shutting up Perl warnings about this.
3696 if ($failures & $SVN::Auth::SSL::UNKNOWNCA) {
3697 print STDERR " - The certificate is not issued ",
3698 "by a trusted authority. Use the\n",
3699 " fingerprint to validate ",
3700 "the certificate manually!\n";
3701 }
3702 if ($failures & $SVN::Auth::SSL::CNMISMATCH) {
3703 print STDERR " - The certificate hostname ",
3704 "does not match.\n";
3705 }
3706 if ($failures & $SVN::Auth::SSL::NOTYETVALID) {
3707 print STDERR " - The certificate is not yet valid.\n";
3708 }
3709 if ($failures & $SVN::Auth::SSL::EXPIRED) {
3710 print STDERR " - The certificate has expired.\n";
3711 }
3712 if ($failures & $SVN::Auth::SSL::OTHER) {
3713 print STDERR " - The certificate has ",
3714 "an unknown error.\n";
3715 }
3716 } # no warnings 'once'
3717 printf STDERR
3718 "Certificate information:\n".
3719 " - Hostname: %s\n".
3720 " - Valid: from %s until %s\n".
3721 " - Issuer: %s\n".
3722 " - Fingerprint: %s\n",
3723 map $cert_info->$_, qw(hostname valid_from valid_until
3724 issuer_dname fingerprint);
3725 my $choice;
3726 prompt:
3727 print STDERR $may_save ?
3728 "(R)eject, accept (t)emporarily or accept (p)ermanently? " :
3729 "(R)eject or accept (t)emporarily? ";
3730 STDERR->flush;
3731 $choice = lc(substr(<STDIN> || 'R', 0, 1));
3732 if ($choice =~ /^t$/i) {
3733 $cred->may_save(undef);
3734 } elsif ($choice =~ /^r$/i) {
3735 return -1;
3736 } elsif ($may_save && $choice =~ /^p$/i) {
3737 $cred->may_save($may_save);
3738 } else {
3739 goto prompt;
3740 }
3741 $cred->accepted_failures($failures);
3742 $SVN::_Core::SVN_NO_ERROR;
3743 }
3744
3745 sub ssl_client_cert {
3746 my ($cred, $realm, $may_save, $pool) = @_;
3747 $may_save = undef if $_no_auth_cache;
3748 print STDERR "Client certificate filename: ";
3749 STDERR->flush;
3750 chomp(my $filename = <STDIN>);
3751 $cred->cert_file($filename);
3752 $cred->may_save($may_save);
3753 $SVN::_Core::SVN_NO_ERROR;
3754 }
3755
3756 sub ssl_client_cert_pw {
3757 my ($cred, $realm, $may_save, $pool) = @_;
3758 $may_save = undef if $_no_auth_cache;
3759 $cred->password(_read_password("Password: ", $realm));
3760 $cred->may_save($may_save);
3761 $SVN::_Core::SVN_NO_ERROR;
3762 }
3763
3764 sub username {
3765 my ($cred, $realm, $may_save, $pool) = @_;
3766 $may_save = undef if $_no_auth_cache;
3767 if (defined $realm && length $realm) {
3768 print STDERR "Authentication realm: $realm\n";
3769 }
3770 my $username;
3771 if (defined $_username) {
3772 $username = $_username;
3773 } else {
3774 print STDERR "Username: ";
3775 STDERR->flush;
3776 chomp($username = <STDIN>);
3777 }
3778 $cred->username($username);
3779 $cred->may_save($may_save);
3780 $SVN::_Core::SVN_NO_ERROR;
3781 }
3782
3783 sub _read_password {
3784 my ($prompt, $realm) = @_;
3785 print STDERR $prompt;
3786 STDERR->flush;
3787 require Term::ReadKey;
3788 Term::ReadKey::ReadMode('noecho');
3789 my $password = '';
3790 while (defined(my $key = Term::ReadKey::ReadKey(0))) {
3791 last if $key =~ /[\012\015]/; # \n\r
3792 $password .= $key;
3793 }
3794 Term::ReadKey::ReadMode('restore');
3795 print STDERR "\n";
3796 STDERR->flush;
3797 $password;
3798 }
3799
3800 package SVN::Git::Fetcher;
3801 use vars qw/@ISA/;
3802 use strict;
3803 use warnings;
3804 use Carp qw/croak/;
3805 use File::Temp qw/tempfile/;
3806 use IO::File qw//;
3807 use vars qw/$_ignore_regex/;
3808
3809 # file baton members: path, mode_a, mode_b, pool, fh, blob, base
3810 sub new {
3811 my ($class, $git_svn, $switch_path) = @_;
3812 my $self = SVN::Delta::Editor->new;
3813 bless $self, $class;
3814 if (exists $git_svn->{last_commit}) {
3815 $self->{c} = $git_svn->{last_commit};
3816 $self->{empty_symlinks} =
3817 _mark_empty_symlinks($git_svn, $switch_path);
3818 }
3819 $self->{ignore_regex} = eval { command_oneline('config', '--get',
3820 "svn-remote.$git_svn->{repo_id}.ignore-paths") };
3821 $self->{empty} = {};
3822 $self->{dir_prop} = {};
3823 $self->{file_prop} = {};
3824 $self->{absent_dir} = {};
3825 $self->{absent_file} = {};
3826 $self->{gii} = $git_svn->tmp_index_do(sub { Git::IndexInfo->new });
3827 $self;
3828 }
3829
3830 # this uses the Ra object, so it must be called before do_{switch,update},
3831 # not inside them (when the Git::SVN::Fetcher object is passed) to
3832 # do_{switch,update}
3833 sub _mark_empty_symlinks {
3834 my ($git_svn, $switch_path) = @_;
3835 my $bool = Git::config_bool('svn.brokenSymlinkWorkaround');
3836 return {} if (!defined($bool)) || (defined($bool) && ! $bool);
3837
3838 my %ret;
3839 my ($rev, $cmt) = $git_svn->last_rev_commit;
3840 return {} unless ($rev && $cmt);
3841
3842 # allow the warning to be printed for each revision we fetch to
3843 # ensure the user sees it. The user can also disable the workaround
3844 # on the repository even while git svn is running and the next
3845 # revision fetched will skip this expensive function.
3846 my $printed_warning;
3847 chomp(my $empty_blob = `git hash-object -t blob --stdin < /dev/null`);
3848 my ($ls, $ctx) = command_output_pipe(qw/ls-tree -r -z/, $cmt);
3849 local $/ = "\0";
3850 my $pfx = defined($switch_path) ? $switch_path : $git_svn->{path};
3851 $pfx .= '/' if length($pfx);
3852 while (<$ls>) {
3853 chomp;
3854 s/\A100644 blob $empty_blob\t//o or next;
3855 unless ($printed_warning) {
3856 print STDERR "Scanning for empty symlinks, ",
3857 "this may take a while if you have ",
3858 "many empty files\n",
3859 "You may disable this with `",
3860 "git config svn.brokenSymlinkWorkaround ",
3861 "false'.\n",
3862 "This may be done in a different ",
3863 "terminal without restarting ",
3864 "git svn\n";
3865 $printed_warning = 1;
3866 }
3867 my $path = $_;
3868 my (undef, $props) =
3869 $git_svn->ra->get_file($pfx.$path, $rev, undef);
3870 if ($props->{'svn:special'}) {
3871 $ret{$path} = 1;
3872 }
3873 }
3874 command_close_pipe($ls, $ctx);
3875 \%ret;
3876 }
3877
3878 # returns true if a given path is inside a ".git" directory
3879 sub in_dot_git {
3880 $_[0] =~ m{(?:^|/)\.git(?:/|$)};
3881 }
3882
3883 # return value: 0 -- don't ignore, 1 -- ignore
3884 sub is_path_ignored {
3885 my ($self, $path) = @_;
3886 return 1 if in_dot_git($path);
3887 return 1 if defined($self->{ignore_regex}) &&
3888 $path =~ m!$self->{ignore_regex}!;
3889 return 0 unless defined($_ignore_regex);
3890 return 1 if $path =~ m!$_ignore_regex!o;
3891 return 0;
3892 }
3893
3894 sub set_path_strip {
3895 my ($self, $path) = @_;
3896 $self->{path_strip} = qr/^\Q$path\E(\/|$)/ if length $path;
3897 }
3898
3899 sub open_root {
3900 { path => '' };
3901 }
3902
3903 sub open_directory {
3904 my ($self, $path, $pb, $rev) = @_;
3905 { path => $path };
3906 }
3907
3908 sub git_path {
3909 my ($self, $path) = @_;
3910 if ($self->{path_strip}) {
3911 $path =~ s!$self->{path_strip}!! or
3912 die "Failed to strip path '$path' ($self->{path_strip})\n";
3913 }
3914 $path;
3915 }
3916
3917 sub delete_entry {
3918 my ($self, $path, $rev, $pb) = @_;
3919 return undef if $self->is_path_ignored($path);
3920
3921 my $gpath = $self->git_path($path);
3922 return undef if ($gpath eq '');
3923
3924 # remove entire directories.
3925 my ($tree) = (command('ls-tree', '-z', $self->{c}, "./$gpath")
3926 =~ /\A040000 tree ([a-f\d]{40})\t\Q$gpath\E\0/);
3927 if ($tree) {
3928 my ($ls, $ctx) = command_output_pipe(qw/ls-tree
3929 -r --name-only -z/,
3930 $tree);
3931 local $/ = "\0";
3932 while (<$ls>) {
3933 chomp;
3934 my $rmpath = "$gpath/$_";
3935 $self->{gii}->remove($rmpath);
3936 print "\tD\t$rmpath\n" unless $::_q;
3937 }
3938 print "\tD\t$gpath/\n" unless $::_q;
3939 command_close_pipe($ls, $ctx);
3940 } else {
3941 $self->{gii}->remove($gpath);
3942 print "\tD\t$gpath\n" unless $::_q;
3943 }
3944 $self->{empty}->{$path} = 0;
3945 undef;
3946 }
3947
3948 sub open_file {
3949 my ($self, $path, $pb, $rev) = @_;
3950 my ($mode, $blob);
3951
3952 goto out if $self->is_path_ignored($path);
3953
3954 my $gpath = $self->git_path($path);
3955 ($mode, $blob) = (command('ls-tree', '-z', $self->{c}, "./$gpath")
3956 =~ /\A(\d{6}) blob ([a-f\d]{40})\t\Q$gpath\E\0/);
3957 unless (defined $mode && defined $blob) {
3958 die "$path was not found in commit $self->{c} (r$rev)\n";
3959 }
3960 if ($mode eq '100644' && $self->{empty_symlinks}->{$path}) {
3961 $mode = '120000';
3962 }
3963 out:
3964 { path => $path, mode_a => $mode, mode_b => $mode, blob => $blob,
3965 pool => SVN::Pool->new, action => 'M' };
3966 }
3967
3968 sub add_file {
3969 my ($self, $path, $pb, $cp_path, $cp_rev) = @_;
3970 my $mode;
3971
3972 if (!$self->is_path_ignored($path)) {
3973 my ($dir, $file) = ($path =~ m#^(.*?)/?([^/]+)$#);
3974 delete $self->{empty}->{$dir};
3975 $mode = '100644';
3976 }
3977 { path => $path, mode_a => $mode, mode_b => $mode,
3978 pool => SVN::Pool->new, action => 'A' };
3979 }
3980
3981 sub add_directory {
3982 my ($self, $path, $cp_path, $cp_rev) = @_;
3983 goto out if $self->is_path_ignored($path);
3984 my $gpath = $self->git_path($path);
3985 if ($gpath eq '') {
3986 my ($ls, $ctx) = command_output_pipe(qw/ls-tree
3987 -r --name-only -z/,
3988 $self->{c});
3989 local $/ = "\0";
3990 while (<$ls>) {
3991 chomp;
3992 $self->{gii}->remove($_);
3993 print "\tD\t$_\n" unless $::_q;
3994 }
3995 command_close_pipe($ls, $ctx);
3996 $self->{empty}->{$path} = 0;
3997 }
3998 my ($dir, $file) = ($path =~ m#^(.*?)/?([^/]+)$#);
3999 delete $self->{empty}->{$dir};
4000 $self->{empty}->{$path} = 1;
4001 out:
4002 { path => $path };
4003 }
4004
4005 sub change_dir_prop {
4006 my ($self, $db, $prop, $value) = @_;
4007 return undef if $self->is_path_ignored($db->{path});
4008 $self->{dir_prop}->{$db->{path}} ||= {};
4009 $self->{dir_prop}->{$db->{path}}->{$prop} = $value;
4010 undef;
4011 }
4012
4013 sub absent_directory {
4014 my ($self, $path, $pb) = @_;
4015 return undef if $self->is_path_ignored($path);
4016 $self->{absent_dir}->{$pb->{path}} ||= [];
4017 push @{$self->{absent_dir}->{$pb->{path}}}, $path;
4018 undef;
4019 }
4020
4021 sub absent_file {
4022 my ($self, $path, $pb) = @_;
4023 return undef if $self->is_path_ignored($path);
4024 $self->{absent_file}->{$pb->{path}} ||= [];
4025 push @{$self->{absent_file}->{$pb->{path}}}, $path;
4026 undef;
4027 }
4028
4029 sub change_file_prop {
4030 my ($self, $fb, $prop, $value) = @_;
4031 return undef if $self->is_path_ignored($fb->{path});
4032 if ($prop eq 'svn:executable') {
4033 if ($fb->{mode_b} != 120000) {
4034 $fb->{mode_b} = defined $value ? 100755 : 100644;
4035 }
4036 } elsif ($prop eq 'svn:special') {
4037 $fb->{mode_b} = defined $value ? 120000 : 100644;
4038 } else {
4039 $self->{file_prop}->{$fb->{path}} ||= {};
4040 $self->{file_prop}->{$fb->{path}}->{$prop} = $value;
4041 }
4042 undef;
4043 }
4044
4045 sub apply_textdelta {
4046 my ($self, $fb, $exp) = @_;
4047 return undef if $self->is_path_ignored($fb->{path});
4048 my $fh = $::_repository->temp_acquire('svn_delta');
4049 # $fh gets auto-closed() by SVN::TxDelta::apply(),
4050 # (but $base does not,) so dup() it for reading in close_file
4051 open my $dup, '<&', $fh or croak $!;
4052 my $base = $::_repository->temp_acquire('git_blob');
4053
4054 if ($fb->{blob}) {
4055 my ($base_is_link, $size);
4056
4057 if ($fb->{mode_a} eq '120000' &&
4058 ! $self->{empty_symlinks}->{$fb->{path}}) {
4059 print $base 'link ' or die "print $!\n";
4060 $base_is_link = 1;
4061 }
4062 retry:
4063 $size = $::_repository->cat_blob($fb->{blob}, $base);
4064 die "Failed to read object $fb->{blob}" if ($size < 0);
4065
4066 if (defined $exp) {
4067 seek $base, 0, 0 or croak $!;
4068 my $got = ::md5sum($base);
4069 if ($got ne $exp) {
4070 my $err = "Checksum mismatch: ".
4071 "$fb->{path} $fb->{blob}\n" .
4072 "expected: $exp\n" .
4073 " got: $got\n";
4074 if ($base_is_link) {
4075 warn $err,
4076 "Retrying... (possibly ",
4077 "a bad symlink from SVN)\n";
4078 $::_repository->temp_reset($base);
4079 $base_is_link = 0;
4080 goto retry;
4081 }
4082 die $err;
4083 }
4084 }
4085 }
4086 seek $base, 0, 0 or croak $!;
4087 $fb->{fh} = $fh;
4088 $fb->{base} = $base;
4089 [ SVN::TxDelta::apply($base, $dup, undef, $fb->{path}, $fb->{pool}) ];
4090 }
4091
4092 sub close_file {
4093 my ($self, $fb, $exp) = @_;
4094 return undef if $self->is_path_ignored($fb->{path});
4095
4096 my $hash;
4097 my $path = $self->git_path($fb->{path});
4098 if (my $fh = $fb->{fh}) {
4099 if (defined $exp) {
4100 seek($fh, 0, 0) or croak $!;
4101 my $got = ::md5sum($fh);
4102 if ($got ne $exp) {
4103 die "Checksum mismatch: $path\n",
4104 "expected: $exp\n got: $got\n";
4105 }
4106 }
4107 if ($fb->{mode_b} == 120000) {
4108 sysseek($fh, 0, 0) or croak $!;
4109 my $rd = sysread($fh, my $buf, 5);
4110
4111 if (!defined $rd) {
4112 croak "sysread: $!\n";
4113 } elsif ($rd == 0) {
4114 warn "$path has mode 120000",
4115 " but it points to nothing\n",
4116 "converting to an empty file with mode",
4117 " 100644\n";
4118 $fb->{mode_b} = '100644';
4119 } elsif ($buf ne 'link ') {
4120 warn "$path has mode 120000",
4121 " but is not a link\n";
4122 } else {
4123 my $tmp_fh = $::_repository->temp_acquire(
4124 'svn_hash');
4125 my $res;
4126 while ($res = sysread($fh, my $str, 1024)) {
4127 my $out = syswrite($tmp_fh, $str, $res);
4128 defined($out) && $out == $res
4129 or croak("write ",
4130 Git::temp_path($tmp_fh),
4131 ": $!\n");
4132 }
4133 defined $res or croak $!;
4134
4135 ($fh, $tmp_fh) = ($tmp_fh, $fh);
4136 Git::temp_release($tmp_fh, 1);
4137 }
4138 }
4139
4140 $hash = $::_repository->hash_and_insert_object(
4141 Git::temp_path($fh));
4142 $hash =~ /^[a-f\d]{40}$/ or die "not a sha1: $hash\n";
4143
4144 Git::temp_release($fb->{base}, 1);
4145 Git::temp_release($fh, 1);
4146 } else {
4147 $hash = $fb->{blob} or die "no blob information\n";
4148 }
4149 $fb->{pool}->clear;
4150 $self->{gii}->update($fb->{mode_b}, $hash, $path) or croak $!;
4151 print "\t$fb->{action}\t$path\n" if $fb->{action} && ! $::_q;
4152 undef;
4153 }
4154
4155 sub abort_edit {
4156 my $self = shift;
4157 $self->{nr} = $self->{gii}->{nr};
4158 delete $self->{gii};
4159 $self->SUPER::abort_edit(@_);
4160 }
4161
4162 sub close_edit {
4163 my $self = shift;
4164 $self->{git_commit_ok} = 1;
4165 $self->{nr} = $self->{gii}->{nr};
4166 delete $self->{gii};
4167 $self->SUPER::close_edit(@_);
4168 }
4169
4170 package SVN::Git::Editor;
4171 use vars qw/@ISA $_rmdir $_cp_similarity $_find_copies_harder $_rename_limit/;
4172 use strict;
4173 use warnings;
4174 use Carp qw/croak/;
4175 use IO::File;
4176
4177 sub new {
4178 my ($class, $opts) = @_;
4179 foreach (qw/svn_path r ra tree_a tree_b log editor_cb/) {
4180 die "$_ required!\n" unless (defined $opts->{$_});
4181 }
4182
4183 my $pool = SVN::Pool->new;
4184 my $mods = generate_diff($opts->{tree_a}, $opts->{tree_b});
4185 my $types = check_diff_paths($opts->{ra}, $opts->{svn_path},
4186 $opts->{r}, $mods);
4187
4188 # $opts->{ra} functions should not be used after this:
4189 my @ce = $opts->{ra}->get_commit_editor($opts->{log},
4190 $opts->{editor_cb}, $pool);
4191 my $self = SVN::Delta::Editor->new(@ce, $pool);
4192 bless $self, $class;
4193 foreach (qw/svn_path r tree_a tree_b/) {
4194 $self->{$_} = $opts->{$_};
4195 }
4196 $self->{url} = $opts->{ra}->{url};
4197 $self->{mods} = $mods;
4198 $self->{types} = $types;
4199 $self->{pool} = $pool;
4200 $self->{bat} = { '' => $self->open_root($self->{r}, $self->{pool}) };
4201 $self->{rm} = { };
4202 $self->{path_prefix} = length $self->{svn_path} ?
4203 "$self->{svn_path}/" : '';
4204 $self->{config} = $opts->{config};
4205 return $self;
4206 }
4207
4208 sub generate_diff {
4209 my ($tree_a, $tree_b) = @_;
4210 my @diff_tree = qw(diff-tree -z -r);
4211 if ($_cp_similarity) {
4212 push @diff_tree, "-C$_cp_similarity";
4213 } else {
4214 push @diff_tree, '-C';
4215 }
4216 push @diff_tree, '--find-copies-harder' if $_find_copies_harder;
4217 push @diff_tree, "-l$_rename_limit" if defined $_rename_limit;
4218 push @diff_tree, $tree_a, $tree_b;
4219 my ($diff_fh, $ctx) = command_output_pipe(@diff_tree);
4220 local $/ = "\0";
4221 my $state = 'meta';
4222 my @mods;
4223 while (<$diff_fh>) {
4224 chomp $_; # this gets rid of the trailing "\0"
4225 if ($state eq 'meta' && /^:(\d{6})\s(\d{6})\s
4226 ($::sha1)\s($::sha1)\s
4227 ([MTCRAD])\d*$/xo) {
4228 push @mods, { mode_a => $1, mode_b => $2,
4229 sha1_a => $3, sha1_b => $4,
4230 chg => $5 };
4231 if ($5 =~ /^(?:C|R)$/) {
4232 $state = 'file_a';
4233 } else {
4234 $state = 'file_b';
4235 }
4236 } elsif ($state eq 'file_a') {
4237 my $x = $mods[$#mods] or croak "Empty array\n";
4238 if ($x->{chg} !~ /^(?:C|R)$/) {
4239 croak "Error parsing $_, $x->{chg}\n";
4240 }
4241 $x->{file_a} = $_;
4242 $state = 'file_b';
4243 } elsif ($state eq 'file_b') {
4244 my $x = $mods[$#mods] or croak "Empty array\n";
4245 if (exists $x->{file_a} && $x->{chg} !~ /^(?:C|R)$/) {
4246 croak "Error parsing $_, $x->{chg}\n";
4247 }
4248 if (!exists $x->{file_a} && $x->{chg} =~ /^(?:C|R)$/) {
4249 croak "Error parsing $_, $x->{chg}\n";
4250 }
4251 $x->{file_b} = $_;
4252 $state = 'meta';
4253 } else {
4254 croak "Error parsing $_\n";
4255 }
4256 }
4257 command_close_pipe($diff_fh, $ctx);
4258 \@mods;
4259 }
4260
4261 sub check_diff_paths {
4262 my ($ra, $pfx, $rev, $mods) = @_;
4263 my %types;
4264 $pfx .= '/' if length $pfx;
4265
4266 sub type_diff_paths {
4267 my ($ra, $types, $path, $rev) = @_;
4268 my @p = split m#/+#, $path;
4269 my $c = shift @p;
4270 unless (defined $types->{$c}) {
4271 $types->{$c} = $ra->check_path($c, $rev);
4272 }
4273 while (@p) {
4274 $c .= '/' . shift @p;
4275 next if defined $types->{$c};
4276 $types->{$c} = $ra->check_path($c, $rev);
4277 }
4278 }
4279
4280 foreach my $m (@$mods) {
4281 foreach my $f (qw/file_a file_b/) {
4282 next unless defined $m->{$f};
4283 my ($dir) = ($m->{$f} =~ m#^(.*?)/?(?:[^/]+)$#);
4284 if (length $pfx.$dir && ! defined $types{$dir}) {
4285 type_diff_paths($ra, \%types, $pfx.$dir, $rev);
4286 }
4287 }
4288 }
4289 \%types;
4290 }
4291
4292 sub split_path {
4293 return ($_[0] =~ m#^(.*?)/?([^/]+)$#);
4294 }
4295
4296 sub repo_path {
4297 my ($self, $path) = @_;
4298 $self->{path_prefix}.(defined $path ? $path : '');
4299 }
4300
4301 sub url_path {
4302 my ($self, $path) = @_;
4303 if ($self->{url} =~ m#^https?://#) {
4304 $path =~ s!([^~a-zA-Z0-9_./-])!uc sprintf("%%%02x",ord($1))!eg;
4305 }
4306 $self->{url} . '/' . $self->repo_path($path);
4307 }
4308
4309 sub rmdirs {
4310 my ($self) = @_;
4311 my $rm = $self->{rm};
4312 delete $rm->{''}; # we never delete the url we're tracking
4313 return unless %$rm;
4314
4315 foreach (keys %$rm) {
4316 my @d = split m#/#, $_;
4317 my $c = shift @d;
4318 $rm->{$c} = 1;
4319 while (@d) {
4320 $c .= '/' . shift @d;
4321 $rm->{$c} = 1;
4322 }
4323 }
4324 delete $rm->{$self->{svn_path}};
4325 delete $rm->{''}; # we never delete the url we're tracking
4326 return unless %$rm;
4327
4328 my ($fh, $ctx) = command_output_pipe(qw/ls-tree --name-only -r -z/,
4329 $self->{tree_b});
4330 local $/ = "\0";
4331 while (<$fh>) {
4332 chomp;
4333 my @dn = split m#/#, $_;
4334 while (pop @dn) {
4335 delete $rm->{join '/', @dn};
4336 }
4337 unless (%$rm) {
4338 close $fh;
4339 return;
4340 }
4341 }
4342 command_close_pipe($fh, $ctx);
4343
4344 my ($r, $p, $bat) = ($self->{r}, $self->{pool}, $self->{bat});
4345 foreach my $d (sort { $b =~ tr#/#/# <=> $a =~ tr#/#/# } keys %$rm) {
4346 $self->close_directory($bat->{$d}, $p);
4347 my ($dn) = ($d =~ m#^(.*?)/?(?:[^/]+)$#);
4348 print "\tD+\t$d/\n" unless $::_q;
4349 $self->SUPER::delete_entry($d, $r, $bat->{$dn}, $p);
4350 delete $bat->{$d};
4351 }
4352 }
4353
4354 sub open_or_add_dir {
4355 my ($self, $full_path, $baton) = @_;
4356 my $t = $self->{types}->{$full_path};
4357 if (!defined $t) {
4358 die "$full_path not known in r$self->{r} or we have a bug!\n";
4359 }
4360 {
4361 no warnings 'once';
4362 # SVN::Node::none and SVN::Node::file are used only once,
4363 # so we're shutting up Perl's warnings about them.
4364 if ($t == $SVN::Node::none) {
4365 return $self->add_directory($full_path, $baton,
4366 undef, -1, $self->{pool});
4367 } elsif ($t == $SVN::Node::dir) {
4368 return $self->open_directory($full_path, $baton,
4369 $self->{r}, $self->{pool});
4370 } # no warnings 'once'
4371 print STDERR "$full_path already exists in repository at ",
4372 "r$self->{r} and it is not a directory (",
4373 ($t == $SVN::Node::file ? 'file' : 'unknown'),"/$t)\n";
4374 } # no warnings 'once'
4375 exit 1;
4376 }
4377
4378 sub ensure_path {
4379 my ($self, $path) = @_;
4380 my $bat = $self->{bat};
4381 my $repo_path = $self->repo_path($path);
4382 return $bat->{''} unless (length $repo_path);
4383 my @p = split m#/+#, $repo_path;
4384 my $c = shift @p;
4385 $bat->{$c} ||= $self->open_or_add_dir($c, $bat->{''});
4386 while (@p) {
4387 my $c0 = $c;
4388 $c .= '/' . shift @p;
4389 $bat->{$c} ||= $self->open_or_add_dir($c, $bat->{$c0});
4390 }
4391 return $bat->{$c};
4392 }
4393
4394 # Subroutine to convert a globbing pattern to a regular expression.
4395 # From perl cookbook.
4396 sub glob2pat {
4397 my $globstr = shift;
4398 my %patmap = ('*' => '.*', '?' => '.', '[' => '[', ']' => ']');
4399 $globstr =~ s{(.)} { $patmap{$1} || "\Q$1" }ge;
4400 return '^' . $globstr . '$';
4401 }
4402
4403 sub check_autoprop {
4404 my ($self, $pattern, $properties, $file, $fbat) = @_;
4405 # Convert the globbing pattern to a regular expression.
4406 my $regex = glob2pat($pattern);
4407 # Check if the pattern matches the file name.
4408 if($file =~ m/($regex)/) {
4409 # Parse the list of properties to set.
4410 my @props = split(/;/, $properties);
4411 foreach my $prop (@props) {
4412 # Parse 'name=value' syntax and set the property.
4413 if ($prop =~ /([^=]+)=(.*)/) {
4414 my ($n,$v) = ($1,$2);
4415 for ($n, $v) {
4416 s/^\s+//; s/\s+$//;
4417 }
4418 $self->change_file_prop($fbat, $n, $v);
4419 }
4420 }
4421 }
4422 }
4423
4424 sub apply_autoprops {
4425 my ($self, $file, $fbat) = @_;
4426 my $conf_t = ${$self->{config}}{'config'};
4427 no warnings 'once';
4428 # Check [miscellany]/enable-auto-props in svn configuration.
4429 if (SVN::_Core::svn_config_get_bool(
4430 $conf_t,
4431 $SVN::_Core::SVN_CONFIG_SECTION_MISCELLANY,
4432 $SVN::_Core::SVN_CONFIG_OPTION_ENABLE_AUTO_PROPS,
4433 0)) {
4434 # Auto-props are enabled. Enumerate them to look for matches.
4435 my $callback = sub {
4436 $self->check_autoprop($_[0], $_[1], $file, $fbat);
4437 };
4438 SVN::_Core::svn_config_enumerate(
4439 $conf_t,
4440 $SVN::_Core::SVN_CONFIG_SECTION_AUTO_PROPS,
4441 $callback);
4442 }
4443 }
4444
4445 sub A {
4446 my ($self, $m) = @_;
4447 my ($dir, $file) = split_path($m->{file_b});
4448 my $pbat = $self->ensure_path($dir);
4449 my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat,
4450 undef, -1);
4451 print "\tA\t$m->{file_b}\n" unless $::_q;
4452 $self->apply_autoprops($file, $fbat);
4453 $self->chg_file($fbat, $m);
4454 $self->close_file($fbat,undef,$self->{pool});
4455 }
4456
4457 sub C {
4458 my ($self, $m) = @_;
4459 my ($dir, $file) = split_path($m->{file_b});
4460 my $pbat = $self->ensure_path($dir);
4461 my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat,
4462 $self->url_path($m->{file_a}), $self->{r});
4463 print "\tC\t$m->{file_a} => $m->{file_b}\n" unless $::_q;
4464 $self->chg_file($fbat, $m);
4465 $self->close_file($fbat,undef,$self->{pool});
4466 }
4467
4468 sub delete_entry {
4469 my ($self, $path, $pbat) = @_;
4470 my $rpath = $self->repo_path($path);
4471 my ($dir, $file) = split_path($rpath);
4472 $self->{rm}->{$dir} = 1;
4473 $self->SUPER::delete_entry($rpath, $self->{r}, $pbat, $self->{pool});
4474 }
4475
4476 sub R {
4477 my ($self, $m) = @_;
4478 my ($dir, $file) = split_path($m->{file_b});
4479 my $pbat = $self->ensure_path($dir);
4480 my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat,
4481 $self->url_path($m->{file_a}), $self->{r});
4482 print "\tR\t$m->{file_a} => $m->{file_b}\n" unless $::_q;
4483 $self->apply_autoprops($file, $fbat);
4484 $self->chg_file($fbat, $m);
4485 $self->close_file($fbat,undef,$self->{pool});
4486
4487 ($dir, $file) = split_path($m->{file_a});
4488 $pbat = $self->ensure_path($dir);
4489 $self->delete_entry($m->{file_a}, $pbat);
4490 }
4491
4492 sub M {
4493 my ($self, $m) = @_;
4494 my ($dir, $file) = split_path($m->{file_b});
4495 my $pbat = $self->ensure_path($dir);
4496 my $fbat = $self->open_file($self->repo_path($m->{file_b}),
4497 $pbat,$self->{r},$self->{pool});
4498 print "\t$m->{chg}\t$m->{file_b}\n" unless $::_q;
4499 $self->chg_file($fbat, $m);
4500 $self->close_file($fbat,undef,$self->{pool});
4501 }
4502
4503 sub T { shift->M(@_) }
4504
4505 sub change_file_prop {
4506 my ($self, $fbat, $pname, $pval) = @_;
4507 $self->SUPER::change_file_prop($fbat, $pname, $pval, $self->{pool});
4508 }
4509
4510 sub _chg_file_get_blob ($$$$) {
4511 my ($self, $fbat, $m, $which) = @_;
4512 my $fh = $::_repository->temp_acquire("git_blob_$which");
4513 if ($m->{"mode_$which"} =~ /^120/) {
4514 print $fh 'link ' or croak $!;
4515 $self->change_file_prop($fbat,'svn:special','*');
4516 } elsif ($m->{mode_a} =~ /^120/ && $m->{"mode_$which"} !~ /^120/) {
4517 $self->change_file_prop($fbat,'svn:special',undef);
4518 }
4519 my $blob = $m->{"sha1_$which"};
4520 return ($fh,) if ($blob =~ /^0{40}$/);
4521 my $size = $::_repository->cat_blob($blob, $fh);
4522 croak "Failed to read object $blob" if ($size < 0);
4523 $fh->flush == 0 or croak $!;
4524 seek $fh, 0, 0 or croak $!;
4525
4526 my $exp = ::md5sum($fh);
4527 seek $fh, 0, 0 or croak $!;
4528 return ($fh, $exp);
4529 }
4530
4531 sub chg_file {
4532 my ($self, $fbat, $m) = @_;
4533 if ($m->{mode_b} =~ /755$/ && $m->{mode_a} !~ /755$/) {
4534 $self->change_file_prop($fbat,'svn:executable','*');
4535 } elsif ($m->{mode_b} !~ /755$/ && $m->{mode_a} =~ /755$/) {
4536 $self->change_file_prop($fbat,'svn:executable',undef);
4537 }
4538 my ($fh_a, $exp_a) = _chg_file_get_blob $self, $fbat, $m, 'a';
4539 my ($fh_b, $exp_b) = _chg_file_get_blob $self, $fbat, $m, 'b';
4540 my $pool = SVN::Pool->new;
4541 my $atd = $self->apply_textdelta($fbat, $exp_a, $pool);
4542 if (-s $fh_a) {
4543 my $txstream = SVN::TxDelta::new ($fh_a, $fh_b, $pool);
4544 my $res = SVN::TxDelta::send_txstream($txstream, @$atd, $pool);
4545 if (defined $res) {
4546 die "Unexpected result from send_txstream: $res\n",
4547 "(SVN::Core::VERSION: $SVN::Core::VERSION)\n";
4548 }
4549 } else {
4550 my $got = SVN::TxDelta::send_stream($fh_b, @$atd, $pool);
4551 die "Checksum mismatch\nexpected: $exp_b\ngot: $got\n"
4552 if ($got ne $exp_b);
4553 }
4554 Git::temp_release($fh_b, 1);
4555 Git::temp_release($fh_a, 1);
4556 $pool->clear;
4557 }
4558
4559 sub D {
4560 my ($self, $m) = @_;
4561 my ($dir, $file) = split_path($m->{file_b});
4562 my $pbat = $self->ensure_path($dir);
4563 print "\tD\t$m->{file_b}\n" unless $::_q;
4564 $self->delete_entry($m->{file_b}, $pbat);
4565 }
4566
4567 sub close_edit {
4568 my ($self) = @_;
4569 my ($p,$bat) = ($self->{pool}, $self->{bat});
4570 foreach (sort { $b =~ tr#/#/# <=> $a =~ tr#/#/# } keys %$bat) {
4571 next if $_ eq '';
4572 $self->close_directory($bat->{$_}, $p);
4573 }
4574 $self->close_directory($bat->{''}, $p);
4575 $self->SUPER::close_edit($p);
4576 $p->clear;
4577 }
4578
4579 sub abort_edit {
4580 my ($self) = @_;
4581 $self->SUPER::abort_edit($self->{pool});
4582 }
4583
4584 sub DESTROY {
4585 my $self = shift;
4586 $self->SUPER::DESTROY(@_);
4587 $self->{pool}->clear;
4588 }
4589
4590 # this drives the editor
4591 sub apply_diff {
4592 my ($self) = @_;
4593 my $mods = $self->{mods};
4594 my %o = ( D => 1, R => 0, C => -1, A => 3, M => 3, T => 3 );
4595 foreach my $m (sort { $o{$a->{chg}} <=> $o{$b->{chg}} } @$mods) {
4596 my $f = $m->{chg};
4597 if (defined $o{$f}) {
4598 $self->$f($m);
4599 } else {
4600 fatal("Invalid change type: $f");
4601 }
4602 }
4603 $self->rmdirs if $_rmdir;
4604 if (@$mods == 0) {
4605 $self->abort_edit;
4606 } else {
4607 $self->close_edit;
4608 }
4609 return scalar @$mods;
4610 }
4611
4612 package Git::SVN::Ra;
4613 use vars qw/@ISA $config_dir $_log_window_size/;
4614 use strict;
4615 use warnings;
4616 my ($ra_invalid, $can_do_switch, %ignored_err, $RA);
4617
4618 BEGIN {
4619 # enforce temporary pool usage for some simple functions
4620 no strict 'refs';
4621 for my $f (qw/rev_proplist get_latest_revnum get_uuid get_repos_root
4622 get_file/) {
4623 my $SUPER = "SUPER::$f";
4624 *$f = sub {
4625 my $self = shift;
4626 my $pool = SVN::Pool->new;
4627 my @ret = $self->$SUPER(@_,$pool);
4628 $pool->clear;
4629 wantarray ? @ret : $ret[0];
4630 };
4631 }
4632 }
4633
4634 sub _auth_providers () {
4635 [
4636 SVN::Client::get_simple_provider(),
4637 SVN::Client::get_ssl_server_trust_file_provider(),
4638 SVN::Client::get_simple_prompt_provider(
4639 \&Git::SVN::Prompt::simple, 2),
4640 SVN::Client::get_ssl_client_cert_file_provider(),
4641 SVN::Client::get_ssl_client_cert_prompt_provider(
4642 \&Git::SVN::Prompt::ssl_client_cert, 2),
4643 SVN::Client::get_ssl_client_cert_pw_file_provider(),
4644 SVN::Client::get_ssl_client_cert_pw_prompt_provider(
4645 \&Git::SVN::Prompt::ssl_client_cert_pw, 2),
4646 SVN::Client::get_username_provider(),
4647 SVN::Client::get_ssl_server_trust_prompt_provider(
4648 \&Git::SVN::Prompt::ssl_server_trust),
4649 SVN::Client::get_username_prompt_provider(
4650 \&Git::SVN::Prompt::username, 2)
4651 ]
4652 }
4653
4654 sub escape_uri_only {
4655 my ($uri) = @_;
4656 my @tmp;
4657 foreach (split m{/}, $uri) {
4658 s/([^~\w.%+-]|%(?![a-fA-F0-9]{2}))/sprintf("%%%02X",ord($1))/eg;
4659 push @tmp, $_;
4660 }
4661 join('/', @tmp);
4662 }
4663
4664 sub escape_url {
4665 my ($url) = @_;
4666 if ($url =~ m#^(https?)://([^/]+)(.*)$#) {
4667 my ($scheme, $domain, $uri) = ($1, $2, escape_uri_only($3));
4668 $url = "$scheme://$domain$uri";
4669 }
4670 $url;
4671 }
4672
4673 sub new {
4674 my ($class, $url) = @_;
4675 $url =~ s!/+$!!;
4676 return $RA if ($RA && $RA->{url} eq $url);
4677
4678 SVN::_Core::svn_config_ensure($config_dir, undef);
4679 my ($baton, $callbacks) = SVN::Core::auth_open_helper(_auth_providers);
4680 my $config = SVN::Core::config_get_config($config_dir);
4681 $RA = undef;
4682 my $dont_store_passwords = 1;
4683 my $conf_t = ${$config}{'config'};
4684 {
4685 no warnings 'once';
4686 # The usage of $SVN::_Core::SVN_CONFIG_* variables
4687 # produces warnings that variables are used only once.
4688 # I had not found the better way to shut them up, so
4689 # the warnings of type 'once' are disabled in this block.
4690 if (SVN::_Core::svn_config_get_bool($conf_t,
4691 $SVN::_Core::SVN_CONFIG_SECTION_AUTH,
4692 $SVN::_Core::SVN_CONFIG_OPTION_STORE_PASSWORDS,
4693 1) == 0) {
4694 SVN::_Core::svn_auth_set_parameter($baton,
4695 $SVN::_Core::SVN_AUTH_PARAM_DONT_STORE_PASSWORDS,
4696 bless (\$dont_store_passwords, "_p_void"));
4697 }
4698 if (SVN::_Core::svn_config_get_bool($conf_t,
4699 $SVN::_Core::SVN_CONFIG_SECTION_AUTH,
4700 $SVN::_Core::SVN_CONFIG_OPTION_STORE_AUTH_CREDS,
4701 1) == 0) {
4702 $Git::SVN::Prompt::_no_auth_cache = 1;
4703 }
4704 } # no warnings 'once'
4705 my $self = SVN::Ra->new(url => escape_url($url), auth => $baton,
4706 config => $config,
4707 pool => SVN::Pool->new,
4708 auth_provider_callbacks => $callbacks);
4709 $self->{url} = $url;
4710 $self->{svn_path} = $url;
4711 $self->{repos_root} = $self->get_repos_root;
4712 $self->{svn_path} =~ s#^\Q$self->{repos_root}\E(/|$)##;
4713 $self->{cache} = { check_path => { r => 0, data => {} },
4714 get_dir => { r => 0, data => {} } };
4715 $RA = bless $self, $class;
4716 }
4717
4718 sub check_path {
4719 my ($self, $path, $r) = @_;
4720 my $cache = $self->{cache}->{check_path};
4721 if ($r == $cache->{r} && exists $cache->{data}->{$path}) {
4722 return $cache->{data}->{$path};
4723 }
4724 my $pool = SVN::Pool->new;
4725 my $t = $self->SUPER::check_path($path, $r, $pool);
4726 $pool->clear;
4727 if ($r != $cache->{r}) {
4728 %{$cache->{data}} = ();
4729 $cache->{r} = $r;
4730 }
4731 $cache->{data}->{$path} = $t;
4732 }
4733
4734 sub get_dir {
4735 my ($self, $dir, $r) = @_;
4736 my $cache = $self->{cache}->{get_dir};
4737 if ($r == $cache->{r}) {
4738 if (my $x = $cache->{data}->{$dir}) {
4739 return wantarray ? @$x : $x->[0];
4740 }
4741 }
4742 my $pool = SVN::Pool->new;
4743 my ($d, undef, $props) = $self->SUPER::get_dir($dir, $r, $pool);
4744 my %dirents = map { $_ => { kind => $d->{$_}->kind } } keys %$d;
4745 $pool->clear;
4746 if ($r != $cache->{r}) {
4747 %{$cache->{data}} = ();
4748 $cache->{r} = $r;
4749 }
4750 $cache->{data}->{$dir} = [ \%dirents, $r, $props ];
4751 wantarray ? (\%dirents, $r, $props) : \%dirents;
4752 }
4753
4754 sub DESTROY {
4755 # do not call the real DESTROY since we store ourselves in $RA
4756 }
4757
4758 # get_log(paths, start, end, limit,
4759 # discover_changed_paths, strict_node_history, receiver)
4760 sub get_log {
4761 my ($self, @args) = @_;
4762 my $pool = SVN::Pool->new;
4763
4764 # svn_log_changed_path_t objects passed to get_log are likely to be
4765 # overwritten even if only the refs are copied to an external variable,
4766 # so we should dup the structures in their entirety. Using an
4767 # externally passed pool (instead of our temporary and quickly cleared
4768 # pool in Git::SVN::Ra) does not help matters at all...
4769 my $receiver = pop @args;
4770 my $prefix = "/".$self->{svn_path};
4771 $prefix =~ s#/+($)##;
4772 my $prefix_regex = qr#^\Q$prefix\E#;
4773 push(@args, sub {
4774 my ($paths) = $_[0];
4775 return &$receiver(@_) unless $paths;
4776 $_[0] = ();
4777 foreach my $p (keys %$paths) {
4778 my $i = $paths->{$p};
4779 # Make path relative to our url, not repos_root
4780 $p =~ s/$prefix_regex//;
4781 my %s = map { $_ => $i->$_; }
4782 qw/copyfrom_path copyfrom_rev action/;
4783 if ($s{'copyfrom_path'}) {
4784 $s{'copyfrom_path'} =~ s/$prefix_regex//;
4785 }
4786 $_[0]{$p} = \%s;
4787 }
4788 &$receiver(@_);
4789 });
4790
4791
4792 # the limit parameter was not supported in SVN 1.1.x, so we
4793 # drop it. Therefore, the receiver callback passed to it
4794 # is made aware of this limitation by being wrapped if
4795 # the limit passed to is being wrapped.
4796 if ($SVN::Core::VERSION le '1.2.0') {
4797 my $limit = splice(@args, 3, 1);
4798 if ($limit > 0) {
4799 my $receiver = pop @args;
4800 push(@args, sub { &$receiver(@_) if (--$limit >= 0) });
4801 }
4802 }
4803 my $ret = $self->SUPER::get_log(@args, $pool);
4804 $pool->clear;
4805 $ret;
4806 }
4807
4808 sub trees_match {
4809 my ($self, $url1, $rev1, $url2, $rev2) = @_;
4810 my $ctx = SVN::Client->new(auth => _auth_providers);
4811 my $out = IO::File->new_tmpfile;
4812
4813 # older SVN (1.1.x) doesn't take $pool as the last parameter for
4814 # $ctx->diff(), so we'll create a default one
4815 my $pool = SVN::Pool->new_default_sub;
4816
4817 $ra_invalid = 1; # this will open a new SVN::Ra connection to $url1
4818 $ctx->diff([], $url1, $rev1, $url2, $rev2, 1, 1, 0, $out, $out);
4819 $out->flush;
4820 my $ret = (($out->stat)[7] == 0);
4821 close $out or croak $!;
4822
4823 $ret;
4824 }
4825
4826 sub get_commit_editor {
4827 my ($self, $log, $cb, $pool) = @_;
4828 my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef, 0) : ();
4829 $self->SUPER::get_commit_editor($log, $cb, @lock, $pool);
4830 }
4831
4832 sub gs_do_update {
4833 my ($self, $rev_a, $rev_b, $gs, $editor) = @_;
4834 my $new = ($rev_a == $rev_b);
4835 my $path = $gs->{path};
4836
4837 if ($new && -e $gs->{index}) {
4838 unlink $gs->{index} or die
4839 "Couldn't unlink index: $gs->{index}: $!\n";
4840 }
4841 my $pool = SVN::Pool->new;
4842 $editor->set_path_strip($path);
4843 my (@pc) = split m#/#, $path;
4844 my $reporter = $self->do_update($rev_b, (@pc ? shift @pc : ''),
4845 1, $editor, $pool);
4846 my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef) : ();
4847
4848 # Since we can't rely on svn_ra_reparent being available, we'll
4849 # just have to do some magic with set_path to make it so
4850 # we only want a partial path.
4851 my $sp = '';
4852 my $final = join('/', @pc);
4853 while (@pc) {
4854 $reporter->set_path($sp, $rev_b, 0, @lock, $pool);
4855 $sp .= '/' if length $sp;
4856 $sp .= shift @pc;
4857 }
4858 die "BUG: '$sp' != '$final'\n" if ($sp ne $final);
4859
4860 $reporter->set_path($sp, $rev_a, $new, @lock, $pool);
4861
4862 $reporter->finish_report($pool);
4863 $pool->clear;
4864 $editor->{git_commit_ok};
4865 }
4866
4867 # this requires SVN 1.4.3 or later (do_switch didn't work before 1.4.3, and
4868 # svn_ra_reparent didn't work before 1.4)
4869 sub gs_do_switch {
4870 my ($self, $rev_a, $rev_b, $gs, $url_b, $editor) = @_;
4871 my $path = $gs->{path};
4872 my $pool = SVN::Pool->new;
4873
4874 my $full_url = $self->{url};
4875 my $old_url = $full_url;
4876 $full_url .= '/' . $path if length $path;
4877 my ($ra, $reparented);
4878
4879 if ($old_url =~ m#^svn(\+ssh)?://# ||
4880 ($full_url =~ m#^https?://# &&
4881 escape_url($full_url) ne $full_url)) {
4882 $_[0] = undef;
4883 $self = undef;
4884 $RA = undef;
4885 $ra = Git::SVN::Ra->new($full_url);
4886 $ra_invalid = 1;
4887 } elsif ($old_url ne $full_url) {
4888 SVN::_Ra::svn_ra_reparent($self->{session}, $full_url, $pool);
4889 $self->{url} = $full_url;
4890 $reparented = 1;
4891 }
4892
4893 $ra ||= $self;
4894 $url_b = escape_url($url_b);
4895 my $reporter = $ra->do_switch($rev_b, '', 1, $url_b, $editor, $pool);
4896 my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef) : ();
4897 $reporter->set_path('', $rev_a, 0, @lock, $pool);
4898 $reporter->finish_report($pool);
4899
4900 if ($reparented) {
4901 SVN::_Ra::svn_ra_reparent($self->{session}, $old_url, $pool);
4902 $self->{url} = $old_url;
4903 }
4904
4905 $pool->clear;
4906 $editor->{git_commit_ok};
4907 }
4908
4909 sub longest_common_path {
4910 my ($gsv, $globs) = @_;
4911 my %common;
4912 my $common_max = scalar @$gsv;
4913
4914 foreach my $gs (@$gsv) {
4915 my @tmp = split m#/#, $gs->{path};
4916 my $p = '';
4917 foreach (@tmp) {
4918 $p .= length($p) ? "/$_" : $_;
4919 $common{$p} ||= 0;
4920 $common{$p}++;
4921 }
4922 }
4923 $globs ||= [];
4924 $common_max += scalar @$globs;
4925 foreach my $glob (@$globs) {
4926 my @tmp = split m#/#, $glob->{path}->{left};
4927 my $p = '';
4928 foreach (@tmp) {
4929 $p .= length($p) ? "/$_" : $_;
4930 $common{$p} ||= 0;
4931 $common{$p}++;
4932 }
4933 }
4934
4935 my $longest_path = '';
4936 foreach (sort {length $b <=> length $a} keys %common) {
4937 if ($common{$_} == $common_max) {
4938 $longest_path = $_;
4939 last;
4940 }
4941 }
4942 $longest_path;
4943 }
4944
4945 sub gs_fetch_loop_common {
4946 my ($self, $base, $head, $gsv, $globs) = @_;
4947 return if ($base > $head);
4948 my $inc = $_log_window_size;
4949 my ($min, $max) = ($base, $head < $base + $inc ? $head : $base + $inc);
4950 my $longest_path = longest_common_path($gsv, $globs);
4951 my $ra_url = $self->{url};
4952 my $find_trailing_edge;
4953 while (1) {
4954 my %revs;
4955 my $err;
4956 my $err_handler = $SVN::Error::handler;
4957 $SVN::Error::handler = sub {
4958 ($err) = @_;
4959 skip_unknown_revs($err);
4960 };
4961 sub _cb {
4962 my ($paths, $r, $author, $date, $log) = @_;
4963 [ $paths,
4964 { author => $author, date => $date, log => $log } ];
4965 }
4966 $self->get_log([$longest_path], $min, $max, 0, 1, 1,
4967 sub { $revs{$_[1]} = _cb(@_) });
4968 if ($err) {
4969 print "Checked through r$max\r";
4970 } else {
4971 $find_trailing_edge = 1;
4972 }
4973 if ($err and $find_trailing_edge) {
4974 print STDERR "Path '$longest_path' ",
4975 "was probably deleted:\n",
4976 $err->expanded_message,
4977 "\nWill attempt to follow ",
4978 "revisions r$min .. r$max ",
4979 "committed before the deletion\n";
4980 my $hi = $max;
4981 while (--$hi >= $min) {
4982 my $ok;
4983 $self->get_log([$longest_path], $min, $hi,
4984 0, 1, 1, sub {
4985 $ok = $_[1];
4986 $revs{$_[1]} = _cb(@_) });
4987 if ($ok) {
4988 print STDERR "r$min .. r$ok OK\n";
4989 last;
4990 }
4991 }
4992 $find_trailing_edge = 0;
4993 }
4994 $SVN::Error::handler = $err_handler;
4995
4996 my %exists = map { $_->{path} => $_ } @$gsv;
4997 foreach my $r (sort {$a <=> $b} keys %revs) {
4998 my ($paths, $logged) = @{$revs{$r}};
4999
5000 foreach my $gs ($self->match_globs(\%exists, $paths,
5001 $globs, $r)) {
5002 if ($gs->rev_map_max >= $r) {
5003 next;
5004 }
5005 next unless $gs->match_paths($paths, $r);
5006 $gs->{logged_rev_props} = $logged;
5007 if (my $last_commit = $gs->last_commit) {
5008 $gs->assert_index_clean($last_commit);
5009 }
5010 my $log_entry = $gs->do_fetch($paths, $r);
5011 if ($log_entry) {
5012 $gs->do_git_commit($log_entry);
5013 }
5014 $INDEX_FILES{$gs->{index}} = 1;
5015 }
5016 foreach my $g (@$globs) {
5017 my $k = "svn-remote.$g->{remote}." .
5018 "$g->{t}-maxRev";
5019 Git::SVN::tmp_config($k, $r);
5020 }
5021 if ($ra_invalid) {
5022 $_[0] = undef;
5023 $self = undef;
5024 $RA = undef;
5025 $self = Git::SVN::Ra->new($ra_url);
5026 $ra_invalid = undef;
5027 }
5028 }
5029 # pre-fill the .rev_db since it'll eventually get filled in
5030 # with '0' x40 if something new gets committed
5031 foreach my $gs (@$gsv) {
5032 next if $gs->rev_map_max >= $max;
5033 next if defined $gs->rev_map_get($max);
5034 $gs->rev_map_set($max, 0 x40);
5035 }
5036 foreach my $g (@$globs) {
5037 my $k = "svn-remote.$g->{remote}.$g->{t}-maxRev";
5038 Git::SVN::tmp_config($k, $max);
5039 }
5040 last if $max >= $head;
5041 $min = $max + 1;
5042 $max += $inc;
5043 $max = $head if ($max > $head);
5044 }
5045 Git::SVN::gc();
5046 }
5047
5048 sub get_dir_globbed {
5049 my ($self, $left, $depth, $r) = @_;
5050
5051 my @x = eval { $self->get_dir($left, $r) };
5052 return unless scalar @x == 3;
5053 my $dirents = $x[0];
5054 my @finalents;
5055 foreach my $de (keys %$dirents) {
5056 next if $dirents->{$de}->{kind} != $SVN::Node::dir;
5057 if ($depth > 1) {
5058 my @args = ("$left/$de", $depth - 1, $r);
5059 foreach my $dir ($self->get_dir_globbed(@args)) {
5060 push @finalents, "$de/$dir";
5061 }
5062 } else {
5063 push @finalents, $de;
5064 }
5065 }
5066 @finalents;
5067 }
5068
5069 sub match_globs {
5070 my ($self, $exists, $paths, $globs, $r) = @_;
5071
5072 sub get_dir_check {
5073 my ($self, $exists, $g, $r) = @_;
5074
5075 my @dirs = $self->get_dir_globbed($g->{path}->{left},
5076 $g->{path}->{depth},
5077 $r);
5078
5079 foreach my $de (@dirs) {
5080 my $p = $g->{path}->full_path($de);
5081 next if $exists->{$p};
5082 next if (length $g->{path}->{right} &&
5083 ($self->check_path($p, $r) !=
5084 $SVN::Node::dir));
5085 $exists->{$p} = Git::SVN->init($self->{url}, $p, undef,
5086 $g->{ref}->full_path($de), 1);
5087 }
5088 }
5089 foreach my $g (@$globs) {
5090 if (my $path = $paths->{"/$g->{path}->{left}"}) {
5091 if ($path->{action} =~ /^[AR]$/) {
5092 get_dir_check($self, $exists, $g, $r);
5093 }
5094 }
5095 foreach (keys %$paths) {
5096 if (/$g->{path}->{left_regex}/ &&
5097 !/$g->{path}->{regex}/) {
5098 next if $paths->{$_}->{action} !~ /^[AR]$/;
5099 get_dir_check($self, $exists, $g, $r);
5100 }
5101 next unless /$g->{path}->{regex}/;
5102 my $p = $1;
5103 my $pathname = $g->{path}->full_path($p);
5104 next if $exists->{$pathname};
5105 next if ($self->check_path($pathname, $r) !=
5106 $SVN::Node::dir);
5107 $exists->{$pathname} = Git::SVN->init(
5108 $self->{url}, $pathname, undef,
5109 $g->{ref}->full_path($p), 1);
5110 }
5111 my $c = '';
5112 foreach (split m#/#, $g->{path}->{left}) {
5113 $c .= "/$_";
5114 next unless ($paths->{$c} &&
5115 ($paths->{$c}->{action} =~ /^[AR]$/));
5116 get_dir_check($self, $exists, $g, $r);
5117 }
5118 }
5119 values %$exists;
5120 }
5121
5122 sub minimize_url {
5123 my ($self) = @_;
5124 return $self->{url} if ($self->{url} eq $self->{repos_root});
5125 my $url = $self->{repos_root};
5126 my @components = split(m!/!, $self->{svn_path});
5127 my $c = '';
5128 do {
5129 $url .= "/$c" if length $c;
5130 eval {
5131 my $ra = (ref $self)->new($url);
5132 my $latest = $ra->get_latest_revnum;
5133 $ra->get_log("", $latest, 0, 1, 0, 1, sub {});
5134 };
5135 } while ($@ && ($c = shift @components));
5136 $url;
5137 }
5138
5139 sub can_do_switch {
5140 my $self = shift;
5141 unless (defined $can_do_switch) {
5142 my $pool = SVN::Pool->new;
5143 my $rep = eval {
5144 $self->do_switch(1, '', 0, $self->{url},
5145 SVN::Delta::Editor->new, $pool);
5146 };
5147 if ($@) {
5148 $can_do_switch = 0;
5149 } else {
5150 $rep->abort_report($pool);
5151 $can_do_switch = 1;
5152 }
5153 $pool->clear;
5154 }
5155 $can_do_switch;
5156 }
5157
5158 sub skip_unknown_revs {
5159 my ($err) = @_;
5160 my $errno = $err->apr_err();
5161 # Maybe the branch we're tracking didn't
5162 # exist when the repo started, so it's
5163 # not an error if it doesn't, just continue
5164 #
5165 # Wonderfully consistent library, eh?
5166 # 160013 - svn:// and file://
5167 # 175002 - http(s)://
5168 # 175007 - http(s):// (this repo required authorization, too...)
5169 # More codes may be discovered later...
5170 if ($errno == 175007 || $errno == 175002 || $errno == 160013) {
5171 my $err_key = $err->expanded_message;
5172 # revision numbers change every time, filter them out
5173 $err_key =~ s/\d+/\0/g;
5174 $err_key = "$errno\0$err_key";
5175 unless ($ignored_err{$err_key}) {
5176 warn "W: Ignoring error from SVN, path probably ",
5177 "does not exist: ($errno): ",
5178 $err->expanded_message,"\n";
5179 warn "W: Do not be alarmed at the above message ",
5180 "git-svn is just searching aggressively for ",
5181 "old history.\n",
5182 "This may take a while on large repositories\n";
5183 $ignored_err{$err_key} = 1;
5184 }
5185 return;
5186 }
5187 die "Error from SVN, ($errno): ", $err->expanded_message,"\n";
5188 }
5189
5190 package Git::SVN::Log;
5191 use strict;
5192 use warnings;
5193 use POSIX qw/strftime/;
5194 use Time::Local;
5195 use constant commit_log_separator => ('-' x 72) . "\n";
5196 use vars qw/$TZ $limit $color $pager $non_recursive $verbose $oneline
5197 %rusers $show_commit $incremental/;
5198 my $l_fmt;
5199
5200 sub cmt_showable {
5201 my ($c) = @_;
5202 return 1 if defined $c->{r};
5203
5204 # big commit message got truncated by the 16k pretty buffer in rev-list
5205 if ($c->{l} && $c->{l}->[-1] eq "...\n" &&
5206 $c->{a_raw} =~ /\@([a-f\d\-]+)>$/) {
5207 @{$c->{l}} = ();
5208 my @log = command(qw/cat-file commit/, $c->{c});
5209
5210 # shift off the headers
5211 shift @log while ($log[0] ne '');
5212 shift @log;
5213
5214 # TODO: make $c->{l} not have a trailing newline in the future
5215 @{$c->{l}} = map { "$_\n" } grep !/^git-svn-id: /, @log;
5216
5217 (undef, $c->{r}, undef) = ::extract_metadata(
5218 (grep(/^git-svn-id: /, @log))[-1]);
5219 }
5220 return defined $c->{r};
5221 }
5222
5223 sub log_use_color {
5224 return $color || Git->repository->get_colorbool('color.diff');
5225 }
5226
5227 sub git_svn_log_cmd {
5228 my ($r_min, $r_max, @args) = @_;
5229 my $head = 'HEAD';
5230 my (@files, @log_opts);
5231 foreach my $x (@args) {
5232 if ($x eq '--' || @files) {
5233 push @files, $x;
5234 } else {
5235 if (::verify_ref("$x^0")) {
5236 $head = $x;
5237 } else {
5238 push @log_opts, $x;
5239 }
5240 }
5241 }
5242
5243 my ($url, $rev, $uuid, $gs) = ::working_head_info($head);
5244 $gs ||= Git::SVN->_new;
5245 my @cmd = (qw/log --abbrev-commit --pretty=raw --default/,
5246 $gs->refname);
5247 push @cmd, '-r' unless $non_recursive;
5248 push @cmd, qw/--raw --name-status/ if $verbose;
5249 push @cmd, '--color' if log_use_color();
5250 push @cmd, @log_opts;
5251 if (defined $r_max && $r_max == $r_min) {
5252 push @cmd, '--max-count=1';
5253 if (my $c = $gs->rev_map_get($r_max)) {
5254 push @cmd, $c;
5255 }
5256 } elsif (defined $r_max) {
5257 if ($r_max < $r_min) {
5258 ($r_min, $r_max) = ($r_max, $r_min);
5259 }
5260 my (undef, $c_max) = $gs->find_rev_before($r_max, 1, $r_min);
5261 my (undef, $c_min) = $gs->find_rev_after($r_min, 1, $r_max);
5262 # If there are no commits in the range, both $c_max and $c_min
5263 # will be undefined. If there is at least 1 commit in the
5264 # range, both will be defined.
5265 return () if !defined $c_min || !defined $c_max;
5266 if ($c_min eq $c_max) {
5267 push @cmd, '--max-count=1', $c_min;
5268 } else {
5269 push @cmd, '--boundary', "$c_min..$c_max";
5270 }
5271 }
5272 return (@cmd, @files);
5273 }
5274
5275 # adapted from pager.c
5276 sub config_pager {
5277 chomp(my $pager = command_oneline(qw(var GIT_PAGER)));
5278 if ($pager eq 'cat') {
5279 $pager = undef;
5280 }
5281 $ENV{GIT_PAGER_IN_USE} = defined($pager);
5282 }
5283
5284 sub run_pager {
5285 return unless -t *STDOUT && defined $pager;
5286 pipe my ($rfd, $wfd) or return;
5287 defined(my $pid = fork) or ::fatal "Can't fork: $!";
5288 if (!$pid) {
5289 open STDOUT, '>&', $wfd or
5290 ::fatal "Can't redirect to stdout: $!";
5291 return;
5292 }
5293 open STDIN, '<&', $rfd or ::fatal "Can't redirect stdin: $!";
5294 $ENV{LESS} ||= 'FRSX';
5295 exec $pager or ::fatal "Can't run pager: $! ($pager)";
5296 }
5297
5298 sub format_svn_date {
5299 # some systmes don't handle or mishandle %z, so be creative.
5300 my $t = shift || time;
5301 my $gm = timelocal(gmtime($t));
5302 my $sign = qw( + + - )[ $t <=> $gm ];
5303 my $gmoff = sprintf("%s%02d%02d", $sign, (gmtime(abs($t - $gm)))[2,1]);
5304 return strftime("%Y-%m-%d %H:%M:%S $gmoff (%a, %d %b %Y)", localtime($t));
5305 }
5306
5307 sub parse_git_date {
5308 my ($t, $tz) = @_;
5309 # Date::Parse isn't in the standard Perl distro :(
5310 if ($tz =~ s/^\+//) {
5311 $t += tz_to_s_offset($tz);
5312 } elsif ($tz =~ s/^\-//) {
5313 $t -= tz_to_s_offset($tz);
5314 }
5315 return $t;
5316 }
5317
5318 sub set_local_timezone {
5319 if (defined $TZ) {
5320 $ENV{TZ} = $TZ;
5321 } else {
5322 delete $ENV{TZ};
5323 }
5324 }
5325
5326 sub tz_to_s_offset {
5327 my ($tz) = @_;
5328 $tz =~ s/(\d\d)$//;
5329 return ($1 * 60) + ($tz * 3600);
5330 }
5331
5332 sub get_author_info {
5333 my ($dest, $author, $t, $tz) = @_;
5334 $author =~ s/(?:^\s*|\s*$)//g;
5335 $dest->{a_raw} = $author;
5336 my $au;
5337 if ($::_authors) {
5338 $au = $rusers{$author} || undef;
5339 }
5340 if (!$au) {
5341 ($au) = ($author =~ /<([^>]+)\@[^>]+>$/);
5342 }
5343 $dest->{t} = $t;
5344 $dest->{tz} = $tz;
5345 $dest->{a} = $au;
5346 $dest->{t_utc} = parse_git_date($t, $tz);
5347 }
5348
5349 sub process_commit {
5350 my ($c, $r_min, $r_max, $defer) = @_;
5351 if (defined $r_min && defined $r_max) {
5352 if ($r_min == $c->{r} && $r_min == $r_max) {
5353 show_commit($c);
5354 return 0;
5355 }
5356 return 1 if $r_min == $r_max;
5357 if ($r_min < $r_max) {
5358 # we need to reverse the print order
5359 return 0 if (defined $limit && --$limit < 0);
5360 push @$defer, $c;
5361 return 1;
5362 }
5363 if ($r_min != $r_max) {
5364 return 1 if ($r_min < $c->{r});
5365 return 1 if ($r_max > $c->{r});
5366 }
5367 }
5368 return 0 if (defined $limit && --$limit < 0);
5369 show_commit($c);
5370 return 1;
5371 }
5372
5373 sub show_commit {
5374 my $c = shift;
5375 if ($oneline) {
5376 my $x = "\n";
5377 if (my $l = $c->{l}) {
5378 while ($l->[0] =~ /^\s*$/) { shift @$l }
5379 $x = $l->[0];
5380 }
5381 $l_fmt ||= 'A' . length($c->{r});
5382 print 'r',pack($l_fmt, $c->{r}),' | ';
5383 print "$c->{c} | " if $show_commit;
5384 print $x;
5385 } else {
5386 show_commit_normal($c);
5387 }
5388 }
5389
5390 sub show_commit_changed_paths {
5391 my ($c) = @_;
5392 return unless $c->{changed};
5393 print "Changed paths:\n", @{$c->{changed}};
5394 }
5395
5396 sub show_commit_normal {
5397 my ($c) = @_;
5398 print commit_log_separator, "r$c->{r} | ";
5399 print "$c->{c} | " if $show_commit;
5400 print "$c->{a} | ", format_svn_date($c->{t_utc}), ' | ';
5401 my $nr_line = 0;
5402
5403 if (my $l = $c->{l}) {
5404 while ($l->[$#$l] eq "\n" && $#$l > 0
5405 && $l->[($#$l - 1)] eq "\n") {
5406 pop @$l;
5407 }
5408 $nr_line = scalar @$l;
5409 if (!$nr_line) {
5410 print "1 line\n\n\n";
5411 } else {
5412 if ($nr_line == 1) {
5413 $nr_line = '1 line';
5414 } else {
5415 $nr_line .= ' lines';
5416 }
5417 print $nr_line, "\n";
5418 show_commit_changed_paths($c);
5419 print "\n";
5420 print $_ foreach @$l;
5421 }
5422 } else {
5423 print "1 line\n";
5424 show_commit_changed_paths($c);
5425 print "\n";
5426
5427 }
5428 foreach my $x (qw/raw stat diff/) {
5429 if ($c->{$x}) {
5430 print "\n";
5431 print $_ foreach @{$c->{$x}}
5432 }
5433 }
5434 }
5435
5436 sub cmd_show_log {
5437 my (@args) = @_;
5438 my ($r_min, $r_max);
5439 my $r_last = -1; # prevent dupes
5440 set_local_timezone();
5441 if (defined $::_revision) {
5442 if ($::_revision =~ /^(\d+):(\d+)$/) {
5443 ($r_min, $r_max) = ($1, $2);
5444 } elsif ($::_revision =~ /^\d+$/) {
5445 $r_min = $r_max = $::_revision;
5446 } else {
5447 ::fatal "-r$::_revision is not supported, use ",
5448 "standard 'git log' arguments instead";
5449 }
5450 }
5451
5452 config_pager();
5453 @args = git_svn_log_cmd($r_min, $r_max, @args);
5454 if (!@args) {
5455 print commit_log_separator unless $incremental || $oneline;
5456 return;
5457 }
5458 my $log = command_output_pipe(@args);
5459 run_pager();
5460 my (@k, $c, $d, $stat);
5461 my $esc_color = qr/(?:\033\[(?:(?:\d+;)*\d*)?m)*/;
5462 while (<$log>) {
5463 if (/^${esc_color}commit -?($::sha1_short)/o) {
5464 my $cmt = $1;
5465 if ($c && cmt_showable($c) && $c->{r} != $r_last) {
5466 $r_last = $c->{r};
5467 process_commit($c, $r_min, $r_max, \@k) or
5468 goto out;
5469 }
5470 $d = undef;
5471 $c = { c => $cmt };
5472 } elsif (/^${esc_color}author (.+) (\d+) ([\-\+]?\d+)$/o) {
5473 get_author_info($c, $1, $2, $3);
5474 } elsif (/^${esc_color}(?:tree|parent|committer) /o) {
5475 # ignore
5476 } elsif (/^${esc_color}:\d{6} \d{6} $::sha1_short/o) {
5477 push @{$c->{raw}}, $_;
5478 } elsif (/^${esc_color}[ACRMDT]\t/) {
5479 # we could add $SVN->{svn_path} here, but that requires
5480 # remote access at the moment (repo_path_split)...
5481 s#^(${esc_color})([ACRMDT])\t#$1 $2 #o;
5482 push @{$c->{changed}}, $_;
5483 } elsif (/^${esc_color}diff /o) {
5484 $d = 1;
5485 push @{$c->{diff}}, $_;
5486 } elsif ($d) {
5487 push @{$c->{diff}}, $_;
5488 } elsif (/^\ .+\ \|\s*\d+\ $esc_color[\+\-]*
5489 $esc_color*[\+\-]*$esc_color$/x) {
5490 $stat = 1;
5491 push @{$c->{stat}}, $_;
5492 } elsif ($stat && /^ \d+ files changed, \d+ insertions/) {
5493 push @{$c->{stat}}, $_;
5494 $stat = undef;
5495 } elsif (/^${esc_color} (git-svn-id:.+)$/o) {
5496 ($c->{url}, $c->{r}, undef) = ::extract_metadata($1);
5497 } elsif (s/^${esc_color} //o) {
5498 push @{$c->{l}}, $_;
5499 }
5500 }
5501 if ($c && defined $c->{r} && $c->{r} != $r_last) {
5502 $r_last = $c->{r};
5503 process_commit($c, $r_min, $r_max, \@k);
5504 }
5505 if (@k) {
5506 ($r_min, $r_max) = ($r_max, $r_min);
5507 process_commit($_, $r_min, $r_max) foreach reverse @k;
5508 }
5509 out:
5510 close $log;
5511 print commit_log_separator unless $incremental || $oneline;
5512 }
5513
5514 sub cmd_blame {
5515 my $path = pop;
5516
5517 config_pager();
5518 run_pager();
5519
5520 my ($fh, $ctx, $rev);
5521
5522 if ($_git_format) {
5523 ($fh, $ctx) = command_output_pipe('blame', @_, $path);
5524 while (my $line = <$fh>) {
5525 if ($line =~ /^\^?([[:xdigit:]]+)\s/) {
5526 # Uncommitted edits show up as a rev ID of
5527 # all zeros, which we can't look up with
5528 # cmt_metadata
5529 if ($1 !~ /^0+$/) {
5530 (undef, $rev, undef) =
5531 ::cmt_metadata($1);
5532 $rev = '0' if (!$rev);
5533 } else {
5534 $rev = '0';
5535 }
5536 $rev = sprintf('%-10s', $rev);
5537 $line =~ s/^\^?[[:xdigit:]]+(\s)/$rev$1/;
5538 }
5539 print $line;
5540 }
5541 } else {
5542 ($fh, $ctx) = command_output_pipe('blame', '-p', @_, 'HEAD',
5543 '--', $path);
5544 my ($sha1);
5545 my %authors;
5546 my @buffer;
5547 my %dsha; #distinct sha keys
5548
5549 while (my $line = <$fh>) {
5550 push @buffer, $line;
5551 if ($line =~ /^([[:xdigit:]]{40})\s\d+\s\d+/) {
5552 $dsha{$1} = 1;
5553 }
5554 }
5555
5556 my $s2r = ::cmt_sha2rev_batch([keys %dsha]);
5557
5558 foreach my $line (@buffer) {
5559 if ($line =~ /^([[:xdigit:]]{40})\s\d+\s\d+/) {
5560 $rev = $s2r->{$1};
5561 $rev = '0' if (!$rev)
5562 }
5563 elsif ($line =~ /^author (.*)/) {
5564 $authors{$rev} = $1;
5565 $authors{$rev} =~ s/\s/_/g;
5566 }
5567 elsif ($line =~ /^\t(.*)$/) {
5568 printf("%6s %10s %s\n", $rev, $authors{$rev}, $1);
5569 }
5570 }
5571 }
5572 command_close_pipe($fh, $ctx);
5573 }
5574
5575 package Git::SVN::Migration;
5576 # these version numbers do NOT correspond to actual version numbers
5577 # of git nor git-svn. They are just relative.
5578 #
5579 # v0 layout: .git/$id/info/url, refs/heads/$id-HEAD
5580 #
5581 # v1 layout: .git/$id/info/url, refs/remotes/$id
5582 #
5583 # v2 layout: .git/svn/$id/info/url, refs/remotes/$id
5584 #
5585 # v3 layout: .git/svn/$id, refs/remotes/$id
5586 # - info/url may remain for backwards compatibility
5587 # - this is what we migrate up to this layout automatically,
5588 # - this will be used by git svn init on single branches
5589 # v3.1 layout (auto migrated):
5590 # - .rev_db => .rev_db.$UUID, .rev_db will remain as a symlink
5591 # for backwards compatibility
5592 #
5593 # v4 layout: .git/svn/$repo_id/$id, refs/remotes/$repo_id/$id
5594 # - this is only created for newly multi-init-ed
5595 # repositories. Similar in spirit to the
5596 # --use-separate-remotes option in git-clone (now default)
5597 # - we do not automatically migrate to this (following
5598 # the example set by core git)
5599 #
5600 # v5 layout: .rev_db.$UUID => .rev_map.$UUID
5601 # - newer, more-efficient format that uses 24-bytes per record
5602 # with no filler space.
5603 # - use xxd -c24 < .rev_map.$UUID to view and debug
5604 # - This is a one-way migration, repositories updated to the
5605 # new format will not be able to use old git-svn without
5606 # rebuilding the .rev_db. Rebuilding the rev_db is not
5607 # possible if noMetadata or useSvmProps are set; but should
5608 # be no problem for users that use the (sensible) defaults.
5609 use strict;
5610 use warnings;
5611 use Carp qw/croak/;
5612 use File::Path qw/mkpath/;
5613 use File::Basename qw/dirname basename/;
5614 use vars qw/$_minimize/;
5615
5616 sub migrate_from_v0 {
5617 my $git_dir = $ENV{GIT_DIR};
5618 return undef unless -d $git_dir;
5619 my ($fh, $ctx) = command_output_pipe(qw/rev-parse --symbolic --all/);
5620 my $migrated = 0;
5621 while (<$fh>) {
5622 chomp;
5623 my ($id, $orig_ref) = ($_, $_);
5624 next unless $id =~ s#^refs/heads/(.+)-HEAD$#$1#;
5625 next unless -f "$git_dir/$id/info/url";
5626 my $new_ref = "refs/remotes/$id";
5627 if (::verify_ref("$new_ref^0")) {
5628 print STDERR "W: $orig_ref is probably an old ",
5629 "branch used by an ancient version of ",
5630 "git-svn.\n",
5631 "However, $new_ref also exists.\n",
5632 "We will not be able ",
5633 "to use this branch until this ",
5634 "ambiguity is resolved.\n";
5635 next;
5636 }
5637 print STDERR "Migrating from v0 layout...\n" if !$migrated;
5638 print STDERR "Renaming ref: $orig_ref => $new_ref\n";
5639 command_noisy('update-ref', $new_ref, $orig_ref);
5640 command_noisy('update-ref', '-d', $orig_ref, $orig_ref);
5641 $migrated++;
5642 }
5643 command_close_pipe($fh, $ctx);
5644 print STDERR "Done migrating from v0 layout...\n" if $migrated;
5645 $migrated;
5646 }
5647
5648 sub migrate_from_v1 {
5649 my $git_dir = $ENV{GIT_DIR};
5650 my $migrated = 0;
5651 return $migrated unless -d $git_dir;
5652 my $svn_dir = "$git_dir/svn";
5653
5654 # just in case somebody used 'svn' as their $id at some point...
5655 return $migrated if -d $svn_dir && ! -f "$svn_dir/info/url";
5656
5657 print STDERR "Migrating from a git-svn v1 layout...\n";
5658 mkpath([$svn_dir]);
5659 print STDERR "Data from a previous version of git-svn exists, but\n\t",
5660 "$svn_dir\n\t(required for this version ",
5661 "($::VERSION) of git-svn) does not exist.\n";
5662 my ($fh, $ctx) = command_output_pipe(qw/rev-parse --symbolic --all/);
5663 while (<$fh>) {
5664 my $x = $_;
5665 next unless $x =~ s#^refs/remotes/##;
5666 chomp $x;
5667 next unless -f "$git_dir/$x/info/url";
5668 my $u = eval { ::file_to_s("$git_dir/$x/info/url") };
5669 next unless $u;
5670 my $dn = dirname("$git_dir/svn/$x");
5671 mkpath([$dn]) unless -d $dn;
5672 if ($x eq 'svn') { # they used 'svn' as GIT_SVN_ID:
5673 mkpath(["$git_dir/svn/svn"]);
5674 print STDERR " - $git_dir/$x/info => ",
5675 "$git_dir/svn/$x/info\n";
5676 rename "$git_dir/$x/info", "$git_dir/svn/$x/info" or
5677 croak "$!: $x";
5678 # don't worry too much about these, they probably
5679 # don't exist with repos this old (save for index,
5680 # and we can easily regenerate that)
5681 foreach my $f (qw/unhandled.log index .rev_db/) {
5682 rename "$git_dir/$x/$f", "$git_dir/svn/$x/$f";
5683 }
5684 } else {
5685 print STDERR " - $git_dir/$x => $git_dir/svn/$x\n";
5686 rename "$git_dir/$x", "$git_dir/svn/$x" or
5687 croak "$!: $x";
5688 }
5689 $migrated++;
5690 }
5691 command_close_pipe($fh, $ctx);
5692 print STDERR "Done migrating from a git-svn v1 layout\n";
5693 $migrated;
5694 }
5695
5696 sub read_old_urls {
5697 my ($l_map, $pfx, $path) = @_;
5698 my @dir;
5699 foreach (<$path/*>) {
5700 if (-r "$_/info/url") {
5701 $pfx .= '/' if $pfx && $pfx !~ m!/$!;
5702 my $ref_id = $pfx . basename $_;
5703 my $url = ::file_to_s("$_/info/url");
5704 $l_map->{$ref_id} = $url;
5705 } elsif (-d $_) {
5706 push @dir, $_;
5707 }
5708 }
5709 foreach (@dir) {
5710 my $x = $_;
5711 $x =~ s!^\Q$ENV{GIT_DIR}\E/svn/!!o;
5712 read_old_urls($l_map, $x, $_);
5713 }
5714 }
5715
5716 sub migrate_from_v2 {
5717 my @cfg = command(qw/config -l/);
5718 return if grep /^svn-remote\..+\.url=/, @cfg;
5719 my %l_map;
5720 read_old_urls(\%l_map, '', "$ENV{GIT_DIR}/svn");
5721 my $migrated = 0;
5722
5723 foreach my $ref_id (sort keys %l_map) {
5724 eval { Git::SVN->init($l_map{$ref_id}, '', undef, $ref_id) };
5725 if ($@) {
5726 Git::SVN->init($l_map{$ref_id}, '', $ref_id, $ref_id);
5727 }
5728 $migrated++;
5729 }
5730 $migrated;
5731 }
5732
5733 sub minimize_connections {
5734 my $r = Git::SVN::read_all_remotes();
5735 my $new_urls = {};
5736 my $root_repos = {};
5737 foreach my $repo_id (keys %$r) {
5738 my $url = $r->{$repo_id}->{url} or next;
5739 my $fetch = $r->{$repo_id}->{fetch} or next;
5740 my $ra = Git::SVN::Ra->new($url);
5741
5742 # skip existing cases where we already connect to the root
5743 if (($ra->{url} eq $ra->{repos_root}) ||
5744 ($ra->{repos_root} eq $repo_id)) {
5745 $root_repos->{$ra->{url}} = $repo_id;
5746 next;
5747 }
5748
5749 my $root_ra = Git::SVN::Ra->new($ra->{repos_root});
5750 my $root_path = $ra->{url};
5751 $root_path =~ s#^\Q$ra->{repos_root}\E(/|$)##;
5752 foreach my $path (keys %$fetch) {
5753 my $ref_id = $fetch->{$path};
5754 my $gs = Git::SVN->new($ref_id, $repo_id, $path);
5755
5756 # make sure we can read when connecting to
5757 # a higher level of a repository
5758 my ($last_rev, undef) = $gs->last_rev_commit;
5759 if (!defined $last_rev) {
5760 $last_rev = eval {
5761 $root_ra->get_latest_revnum;
5762 };
5763 next if $@;
5764 }
5765 my $new = $root_path;
5766 $new .= length $path ? "/$path" : '';
5767 eval {
5768 $root_ra->get_log([$new], $last_rev, $last_rev,
5769 0, 0, 1, sub { });
5770 };
5771 next if $@;
5772 $new_urls->{$ra->{repos_root}}->{$new} =
5773 { ref_id => $ref_id,
5774 old_repo_id => $repo_id,
5775 old_path => $path };
5776 }
5777 }
5778
5779 my @emptied;
5780 foreach my $url (keys %$new_urls) {
5781 # see if we can re-use an existing [svn-remote "repo_id"]
5782 # instead of creating a(n ugly) new section:
5783 my $repo_id = $root_repos->{$url} || $url;
5784
5785 my $fetch = $new_urls->{$url};
5786 foreach my $path (keys %$fetch) {
5787 my $x = $fetch->{$path};
5788 Git::SVN->init($url, $path, $repo_id, $x->{ref_id});
5789 my $pfx = "svn-remote.$x->{old_repo_id}";
5790
5791 my $old_fetch = quotemeta("$x->{old_path}:".
5792 "$x->{ref_id}");
5793 command_noisy(qw/config --unset/,
5794 "$pfx.fetch", '^'. $old_fetch . '$');
5795 delete $r->{$x->{old_repo_id}}->
5796 {fetch}->{$x->{old_path}};
5797 if (!keys %{$r->{$x->{old_repo_id}}->{fetch}}) {
5798 command_noisy(qw/config --unset/,
5799 "$pfx.url");
5800 push @emptied, $x->{old_repo_id}
5801 }
5802 }
5803 }
5804 if (@emptied) {
5805 my $file = $ENV{GIT_CONFIG} || "$ENV{GIT_DIR}/config";
5806 print STDERR <<EOF;
5807 The following [svn-remote] sections in your config file ($file) are empty
5808 and can be safely removed:
5809 EOF
5810 print STDERR "[svn-remote \"$_\"]\n" foreach @emptied;
5811 }
5812 }
5813
5814 sub migration_check {
5815 migrate_from_v0();
5816 migrate_from_v1();
5817 migrate_from_v2();
5818 minimize_connections() if $_minimize;
5819 }
5820
5821 package Git::IndexInfo;
5822 use strict;
5823 use warnings;
5824 use Git qw/command_input_pipe command_close_pipe/;
5825
5826 sub new {
5827 my ($class) = @_;
5828 my ($gui, $ctx) = command_input_pipe(qw/update-index -z --index-info/);
5829 bless { gui => $gui, ctx => $ctx, nr => 0}, $class;
5830 }
5831
5832 sub remove {
5833 my ($self, $path) = @_;
5834 if (print { $self->{gui} } '0 ', 0 x 40, "\t", $path, "\0") {
5835 return ++$self->{nr};
5836 }
5837 undef;
5838 }
5839
5840 sub update {
5841 my ($self, $mode, $hash, $path) = @_;
5842 if (print { $self->{gui} } $mode, ' ', $hash, "\t", $path, "\0") {
5843 return ++$self->{nr};
5844 }
5845 undef;
5846 }
5847
5848 sub DESTROY {
5849 my ($self) = @_;
5850 command_close_pipe($self->{gui}, $self->{ctx});
5851 }
5852
5853 package Git::SVN::GlobSpec;
5854 use strict;
5855 use warnings;
5856
5857 sub new {
5858 my ($class, $glob) = @_;
5859 my $re = $glob;
5860 $re =~ s!/+$!!g; # no need for trailing slashes
5861 $re =~ m!^([^*]*)(\*(?:/\*)*)(.*)$!;
5862 my $temp = $re;
5863 my ($left, $right) = ($1, $3);
5864 $re = $2;
5865 my $depth = $re =~ tr/*/*/;
5866 if ($depth != $temp =~ tr/*/*/) {
5867 die "Only one set of wildcard directories " .
5868 "(e.g. '*' or '*/*/*') is supported: '$glob'\n";
5869 }
5870 if ($depth == 0) {
5871 die "One '*' is needed for glob: '$glob'\n";
5872 }
5873 $re =~ s!\*!\[^/\]*!g;
5874 $re = quotemeta($left) . "($re)" . quotemeta($right);
5875 if (length $left && !($left =~ s!/+$!!g)) {
5876 die "Missing trailing '/' on left side of: '$glob' ($left)\n";
5877 }
5878 if (length $right && !($right =~ s!^/+!!g)) {
5879 die "Missing leading '/' on right side of: '$glob' ($right)\n";
5880 }
5881 my $left_re = qr/^\/\Q$left\E(\/|$)/;
5882 bless { left => $left, right => $right, left_regex => $left_re,
5883 regex => qr/$re/, glob => $glob, depth => $depth }, $class;
5884 }
5885
5886 sub full_path {
5887 my ($self, $path) = @_;
5888 return (length $self->{left} ? "$self->{left}/" : '') .
5889 $path . (length $self->{right} ? "/$self->{right}" : '');
5890 }
5891
5892 __END__
5893
5894 Data structures:
5895
5896
5897 $remotes = { # returned by read_all_remotes()
5898 'svn' => {
5899 # svn-remote.svn.url=https://svn.musicpd.org
5900 url => 'https://svn.musicpd.org',
5901 # svn-remote.svn.fetch=mpd/trunk:trunk
5902 fetch => {
5903 'mpd/trunk' => 'trunk',
5904 },
5905 # svn-remote.svn.tags=mpd/tags/*:tags/*
5906 tags => {
5907 path => {
5908 left => 'mpd/tags',
5909 right => '',
5910 regex => qr!mpd/tags/([^/]+)$!,
5911 glob => 'tags/*',
5912 },
5913 ref => {
5914 left => 'tags',
5915 right => '',
5916 regex => qr!tags/([^/]+)$!,
5917 glob => 'tags/*',
5918 },
5919 }
5920 }
5921 };
5922
5923 $log_entry hashref as returned by libsvn_log_entry()
5924 {
5925 log => 'whitespace-formatted log entry
5926 ', # trailing newline is preserved
5927 revision => '8', # integer
5928 date => '2004-02-24T17:01:44.108345Z', # commit date
5929 author => 'committer name'
5930 };
5931
5932
5933 # this is generated by generate_diff();
5934 @mods = array of diff-index line hashes, each element represents one line
5935 of diff-index output
5936
5937 diff-index line ($m hash)
5938 {
5939 mode_a => first column of diff-index output, no leading ':',
5940 mode_b => second column of diff-index output,
5941 sha1_b => sha1sum of the final blob,
5942 chg => change type [MCRADT],
5943 file_a => original file name of a file (iff chg is 'C' or 'R')
5944 file_b => new/current file name of a file (any chg)
5945 }
5946 ;
5947
5948 # retval of read_url_paths{,_all}();
5949 $l_map = {
5950 # repository root url
5951 'https://svn.musicpd.org' => {
5952 # repository path # GIT_SVN_ID
5953 'mpd/trunk' => 'trunk',
5954 'mpd/tags/0.11.5' => 'tags/0.11.5',
5955 },
5956 }
5957
5958 Notes:
5959 I don't trust the each() function on unless I created %hash myself
5960 because the internal iterator may not have started at base.
Unnamed repository; edit this file 'description' to name the repository.