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e194cd1e JH |
1 | #!/usr/bin/perl -w |
2 | ||
3 | use Git; | |
4 | my $git = Git->repository(); | |
5 | ||
6 | sub add_remote_config { | |
7 | my ($hash, $name, $what, $value) = @_; | |
8 | if ($what eq 'url') { | |
9 | if (exists $hash->{$name}{'URL'}) { | |
10 | print STDERR "Warning: more than one remote.$name.url\n"; | |
11 | } | |
12 | $hash->{$name}{'URL'} = $value; | |
13 | } | |
14 | elsif ($what eq 'fetch') { | |
15 | $hash->{$name}{'FETCH'} ||= []; | |
16 | push @{$hash->{$name}{'FETCH'}}, $value; | |
17 | } | |
18 | if (!exists $hash->{$name}{'SOURCE'}) { | |
19 | $hash->{$name}{'SOURCE'} = 'config'; | |
20 | } | |
21 | } | |
22 | ||
23 | sub add_remote_remotes { | |
24 | my ($hash, $file, $name) = @_; | |
25 | ||
26 | if (exists $hash->{$name}) { | |
27 | $hash->{$name}{'WARNING'} = 'ignored due to config'; | |
28 | return; | |
29 | } | |
30 | ||
31 | my $fh; | |
32 | if (!open($fh, '<', $file)) { | |
33 | print STDERR "Warning: cannot open $file\n"; | |
34 | return; | |
35 | } | |
36 | my $it = { 'SOURCE' => 'remotes' }; | |
37 | $hash->{$name} = $it; | |
38 | while (<$fh>) { | |
39 | chomp; | |
40 | if (/^URL:\s*(.*)$/) { | |
41 | # Having more than one is Ok -- it is used for push. | |
42 | if (! exists $it->{'URL'}) { | |
43 | $it->{'URL'} = $1; | |
44 | } | |
45 | } | |
46 | elsif (/^Push:\s*(.*)$/) { | |
47 | ; # later | |
48 | } | |
49 | elsif (/^Pull:\s*(.*)$/) { | |
50 | $it->{'FETCH'} ||= []; | |
51 | push @{$it->{'FETCH'}}, $1; | |
52 | } | |
53 | elsif (/^\#/) { | |
54 | ; # ignore | |
55 | } | |
56 | else { | |
57 | print STDERR "Warning: funny line in $file: $_\n"; | |
58 | } | |
59 | } | |
60 | close($fh); | |
61 | } | |
62 | ||
63 | sub list_remote { | |
64 | my ($git) = @_; | |
65 | my %seen = (); | |
66 | my @remotes = eval { | |
e0d10e1c | 67 | $git->command(qw(config --get-regexp), '^remote\.'); |
e194cd1e JH |
68 | }; |
69 | for (@remotes) { | |
4e5104c1 | 70 | if (/^remote\.(\S+?)\.([^.\s]+)\s+(.*)$/) { |
e194cd1e JH |
71 | add_remote_config(\%seen, $1, $2, $3); |
72 | } | |
73 | } | |
74 | ||
75 | my $dir = $git->repo_path() . "/remotes"; | |
76 | if (opendir(my $dh, $dir)) { | |
77 | local $_; | |
78 | while ($_ = readdir($dh)) { | |
79 | chomp; | |
80 | next if (! -f "$dir/$_" || ! -r _); | |
81 | add_remote_remotes(\%seen, "$dir/$_", $_); | |
82 | } | |
83 | } | |
84 | ||
85 | return \%seen; | |
86 | } | |
87 | ||
88 | sub add_branch_config { | |
89 | my ($hash, $name, $what, $value) = @_; | |
90 | if ($what eq 'remote') { | |
91 | if (exists $hash->{$name}{'REMOTE'}) { | |
92 | print STDERR "Warning: more than one branch.$name.remote\n"; | |
93 | } | |
94 | $hash->{$name}{'REMOTE'} = $value; | |
95 | } | |
96 | elsif ($what eq 'merge') { | |
97 | $hash->{$name}{'MERGE'} ||= []; | |
98 | push @{$hash->{$name}{'MERGE'}}, $value; | |
99 | } | |
100 | } | |
101 | ||
102 | sub list_branch { | |
103 | my ($git) = @_; | |
104 | my %seen = (); | |
105 | my @branches = eval { | |
e0d10e1c | 106 | $git->command(qw(config --get-regexp), '^branch\.'); |
e194cd1e JH |
107 | }; |
108 | for (@branches) { | |
109 | if (/^branch\.([^.]*)\.(\S*)\s+(.*)$/) { | |
110 | add_branch_config(\%seen, $1, $2, $3); | |
111 | } | |
112 | } | |
113 | ||
114 | return \%seen; | |
115 | } | |
116 | ||
117 | my $remote = list_remote($git); | |
118 | my $branch = list_branch($git); | |
119 | ||
120 | sub update_ls_remote { | |
121 | my ($harder, $info) = @_; | |
122 | ||
123 | return if (($harder == 0) || | |
124 | (($harder == 1) && exists $info->{'LS_REMOTE'})); | |
125 | ||
126 | my @ref = map { | |
127 | s|^[0-9a-f]{40}\s+refs/heads/||; | |
128 | $_; | |
129 | } $git->command(qw(ls-remote --heads), $info->{'URL'}); | |
130 | $info->{'LS_REMOTE'} = \@ref; | |
131 | } | |
132 | ||
7a8c9ec1 | 133 | sub list_wildcard_mapping { |
e194cd1e JH |
134 | my ($forced, $ours, $ls) = @_; |
135 | my %refs; | |
136 | for (@$ls) { | |
137 | $refs{$_} = 01; # bit #0 to say "they have" | |
138 | } | |
139 | for ($git->command('for-each-ref', "refs/remotes/$ours")) { | |
140 | chomp; | |
141 | next unless (s|^[0-9a-f]{40}\s[a-z]+\srefs/remotes/$ours/||); | |
142 | next if ($_ eq 'HEAD'); | |
143 | $refs{$_} ||= 0; | |
144 | $refs{$_} |= 02; # bit #1 to say "we have" | |
145 | } | |
146 | my (@new, @stale, @tracked); | |
147 | for (sort keys %refs) { | |
148 | my $have = $refs{$_}; | |
149 | if ($have == 1) { | |
150 | push @new, $_; | |
151 | } | |
152 | elsif ($have == 2) { | |
153 | push @stale, $_; | |
154 | } | |
155 | elsif ($have == 3) { | |
156 | push @tracked, $_; | |
157 | } | |
158 | } | |
7a8c9ec1 | 159 | return \@new, \@stale, \@tracked; |
e194cd1e JH |
160 | } |
161 | ||
7a8c9ec1 | 162 | sub list_mapping { |
e194cd1e JH |
163 | my ($name, $info) = @_; |
164 | my $fetch = $info->{'FETCH'}; | |
165 | my $ls = $info->{'LS_REMOTE'}; | |
7a8c9ec1 | 166 | my (@new, @stale, @tracked); |
e194cd1e JH |
167 | |
168 | for (@$fetch) { | |
169 | next unless (/(\+)?([^:]+):(.*)/); | |
170 | my ($forced, $theirs, $ours) = ($1, $2, $3); | |
171 | if ($theirs eq 'refs/heads/*' && | |
172 | $ours =~ /^refs\/remotes\/(.*)\/\*$/) { | |
173 | # wildcard mapping | |
7a8c9ec1 SP |
174 | my ($w_new, $w_stale, $w_tracked) |
175 | = list_wildcard_mapping($forced, $1, $ls); | |
176 | push @new, @$w_new; | |
177 | push @stale, @$w_stale; | |
178 | push @tracked, @$w_tracked; | |
e194cd1e JH |
179 | } |
180 | elsif ($theirs =~ /\*/ || $ours =~ /\*/) { | |
181 | print STDERR "Warning: unrecognized mapping in remotes.$name.fetch: $_\n"; | |
182 | } | |
183 | elsif ($theirs =~ s|^refs/heads/||) { | |
184 | if (!grep { $_ eq $theirs } @$ls) { | |
185 | push @stale, $theirs; | |
186 | } | |
187 | elsif ($ours ne '') { | |
188 | push @tracked, $theirs; | |
189 | } | |
190 | } | |
191 | } | |
7a8c9ec1 SP |
192 | return \@new, \@stale, \@tracked; |
193 | } | |
194 | ||
195 | sub show_mapping { | |
196 | my ($name, $info) = @_; | |
197 | my ($new, $stale, $tracked) = list_mapping($name, $info); | |
198 | if (@$new) { | |
199 | print " New remote branches (next fetch will store in remotes/$name)\n"; | |
200 | print " @$new\n"; | |
201 | } | |
202 | if (@$stale) { | |
859607df | 203 | print " Stale tracking branches in remotes/$name (use 'git remote prune')\n"; |
7a8c9ec1 | 204 | print " @$stale\n"; |
e194cd1e | 205 | } |
7a8c9ec1 | 206 | if (@$tracked) { |
e194cd1e | 207 | print " Tracked remote branches\n"; |
7a8c9ec1 | 208 | print " @$tracked\n"; |
e194cd1e JH |
209 | } |
210 | } | |
211 | ||
859607df SP |
212 | sub prune_remote { |
213 | my ($name, $ls_remote) = @_; | |
214 | if (!exists $remote->{$name}) { | |
215 | print STDERR "No such remote $name\n"; | |
216 | return; | |
217 | } | |
218 | my $info = $remote->{$name}; | |
219 | update_ls_remote($ls_remote, $info); | |
220 | ||
221 | my ($new, $stale, $tracked) = list_mapping($name, $info); | |
222 | my $prefix = "refs/remotes/$name"; | |
223 | foreach my $to_prune (@$stale) { | |
224 | my @v = $git->command(qw(rev-parse --verify), "$prefix/$to_prune"); | |
225 | $git->command(qw(update-ref -d), "$prefix/$to_prune", $v[0]); | |
226 | } | |
227 | } | |
228 | ||
e194cd1e JH |
229 | sub show_remote { |
230 | my ($name, $ls_remote) = @_; | |
231 | if (!exists $remote->{$name}) { | |
232 | print STDERR "No such remote $name\n"; | |
233 | return; | |
234 | } | |
235 | my $info = $remote->{$name}; | |
236 | update_ls_remote($ls_remote, $info); | |
237 | ||
238 | print "* remote $name\n"; | |
239 | print " URL: $info->{'URL'}\n"; | |
240 | for my $branchname (sort keys %$branch) { | |
241 | next if ($branch->{$branchname}{'REMOTE'} ne $name); | |
242 | my @merged = map { | |
243 | s|^refs/heads/||; | |
244 | $_; | |
245 | } split(' ',"@{$branch->{$branchname}{'MERGE'}}"); | |
246 | next unless (@merged); | |
247 | print " Remote branch(es) merged with 'git pull' while on branch $branchname\n"; | |
248 | print " @merged\n"; | |
249 | } | |
250 | if ($info->{'LS_REMOTE'}) { | |
251 | show_mapping($name, $info); | |
252 | } | |
253 | } | |
254 | ||
255 | sub add_remote { | |
b6f5da1e | 256 | my ($name, $url, $opts) = @_; |
e194cd1e JH |
257 | if (exists $remote->{$name}) { |
258 | print STDERR "remote $name already exists.\n"; | |
259 | exit(1); | |
260 | } | |
e0d10e1c | 261 | $git->command('config', "remote.$name.url", $url); |
b6f5da1e JH |
262 | my $track = $opts->{'track'} || ["*"]; |
263 | ||
264 | for (@$track) { | |
265 | $git->command('config', '--add', "remote.$name.fetch", | |
266 | "+refs/heads/$_:refs/remotes/$name/$_"); | |
267 | } | |
268 | if ($opts->{'fetch'}) { | |
269 | $git->command('fetch', $name); | |
270 | } | |
271 | if (exists $opts->{'master'}) { | |
272 | $git->command('symbolic-ref', "refs/remotes/$name/HEAD", | |
273 | "refs/remotes/$name/$opts->{'master'}"); | |
274 | } | |
275 | } | |
276 | ||
277 | sub add_usage { | |
278 | print STDERR "Usage: git remote add [-f] [-t track]* [-m master] <name> <url>\n"; | |
279 | exit(1); | |
e194cd1e JH |
280 | } |
281 | ||
282 | if (!@ARGV) { | |
283 | for (sort keys %$remote) { | |
284 | print "$_\n"; | |
285 | } | |
286 | } | |
287 | elsif ($ARGV[0] eq 'show') { | |
288 | my $ls_remote = 1; | |
289 | my $i; | |
290 | for ($i = 1; $i < @ARGV; $i++) { | |
291 | if ($ARGV[$i] eq '-n') { | |
292 | $ls_remote = 0; | |
293 | } | |
294 | else { | |
295 | last; | |
296 | } | |
297 | } | |
298 | if ($i >= @ARGV) { | |
299 | print STDERR "Usage: git remote show <remote>\n"; | |
300 | exit(1); | |
301 | } | |
302 | for (; $i < @ARGV; $i++) { | |
303 | show_remote($ARGV[$i], $ls_remote); | |
304 | } | |
305 | } | |
859607df SP |
306 | elsif ($ARGV[0] eq 'prune') { |
307 | my $ls_remote = 1; | |
308 | my $i; | |
309 | for ($i = 1; $i < @ARGV; $i++) { | |
310 | if ($ARGV[$i] eq '-n') { | |
311 | $ls_remote = 0; | |
312 | } | |
313 | else { | |
314 | last; | |
315 | } | |
316 | } | |
317 | if ($i >= @ARGV) { | |
318 | print STDERR "Usage: git remote prune <remote>\n"; | |
319 | exit(1); | |
320 | } | |
321 | for (; $i < @ARGV; $i++) { | |
322 | prune_remote($ARGV[$i], $ls_remote); | |
323 | } | |
324 | } | |
e194cd1e | 325 | elsif ($ARGV[0] eq 'add') { |
b6f5da1e JH |
326 | my %opts = (); |
327 | while (1 < @ARGV && $ARGV[1] =~ /^-/) { | |
328 | my $opt = $ARGV[1]; | |
329 | shift @ARGV; | |
330 | if ($opt eq '-f' || $opt eq '--fetch') { | |
331 | $opts{'fetch'} = 1; | |
332 | next; | |
333 | } | |
334 | if ($opt eq '-t' || $opt eq '--track') { | |
335 | if (@ARGV < 1) { | |
336 | add_usage(); | |
337 | } | |
338 | $opts{'track'} ||= []; | |
339 | push @{$opts{'track'}}, $ARGV[1]; | |
340 | shift @ARGV; | |
341 | next; | |
342 | } | |
343 | if ($opt eq '-m' || $opt eq '--master') { | |
344 | if ((@ARGV < 1) || exists $opts{'master'}) { | |
345 | add_usage(); | |
346 | } | |
347 | $opts{'master'} = $ARGV[1]; | |
348 | shift @ARGV; | |
349 | next; | |
350 | } | |
351 | add_usage(); | |
352 | } | |
e194cd1e | 353 | if (@ARGV != 3) { |
b6f5da1e | 354 | add_usage(); |
e194cd1e | 355 | } |
b6f5da1e | 356 | add_remote($ARGV[1], $ARGV[2], \%opts); |
e194cd1e | 357 | } |
c03f7757 QT |
358 | else { |
359 | print STDERR "Usage: git remote\n"; | |
360 | print STDERR " git remote add <name> <url>\n"; | |
361 | print STDERR " git remote show <name>\n"; | |
859607df | 362 | print STDERR " git remote prune <name>\n"; |
c03f7757 QT |
363 | exit(1); |
364 | } |