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5cde71d6 JH |
1 | #!/usr/bin/perl -w |
2 | ||
3 | use strict; | |
4 | ||
5 | sub run_cmd_pipe { | |
21e9757e AR |
6 | if ($^O eq 'MSWin32') { |
7 | my @invalid = grep {m/[":*]/} @_; | |
8 | die "$^O does not support: @invalid\n" if @invalid; | |
9 | my @args = map { m/ /o ? "\"$_\"": $_ } @_; | |
10 | return qx{@args}; | |
11 | } else { | |
12 | my $fh = undef; | |
13 | open($fh, '-|', @_) or die; | |
14 | return <$fh>; | |
15 | } | |
5cde71d6 JH |
16 | } |
17 | ||
18 | my ($GIT_DIR) = run_cmd_pipe(qw(git rev-parse --git-dir)); | |
19 | ||
20 | if (!defined $GIT_DIR) { | |
21 | exit(1); # rev-parse would have already said "not a git repo" | |
22 | } | |
23 | chomp($GIT_DIR); | |
24 | ||
25 | sub refresh { | |
26 | my $fh; | |
21e9757e | 27 | open $fh, 'git update-index --refresh |' |
5cde71d6 JH |
28 | or die; |
29 | while (<$fh>) { | |
30 | ;# ignore 'needs update' | |
31 | } | |
32 | close $fh; | |
33 | } | |
34 | ||
35 | sub list_untracked { | |
36 | map { | |
37 | chomp $_; | |
38 | $_; | |
39 | } | |
40 | run_cmd_pipe(qw(git ls-files --others | |
41 | --exclude-per-directory=.gitignore), | |
42 | "--exclude-from=$GIT_DIR/info/exclude", | |
43 | '--', @_); | |
44 | } | |
45 | ||
46 | my $status_fmt = '%12s %12s %s'; | |
47 | my $status_head = sprintf($status_fmt, 'staged', 'unstaged', 'path'); | |
48 | ||
49 | # Returns list of hashes, contents of each of which are: | |
50 | # PRINT: print message | |
51 | # VALUE: pathname | |
52 | # BINARY: is a binary path | |
53 | # INDEX: is index different from HEAD? | |
54 | # FILE: is file different from index? | |
55 | # INDEX_ADDDEL: is it add/delete between HEAD and index? | |
56 | # FILE_ADDDEL: is it add/delete between index and file? | |
57 | ||
58 | sub list_modified { | |
59 | my ($only) = @_; | |
60 | my (%data, @return); | |
61 | my ($add, $del, $adddel, $file); | |
62 | ||
63 | for (run_cmd_pipe(qw(git diff-index --cached | |
64 | --numstat --summary HEAD))) { | |
65 | if (($add, $del, $file) = | |
66 | /^([-\d]+) ([-\d]+) (.*)/) { | |
67 | my ($change, $bin); | |
68 | if ($add eq '-' && $del eq '-') { | |
69 | $change = 'binary'; | |
70 | $bin = 1; | |
71 | } | |
72 | else { | |
73 | $change = "+$add/-$del"; | |
74 | } | |
75 | $data{$file} = { | |
76 | INDEX => $change, | |
77 | BINARY => $bin, | |
78 | FILE => 'nothing', | |
79 | } | |
80 | } | |
81 | elsif (($adddel, $file) = | |
82 | /^ (create|delete) mode [0-7]+ (.*)$/) { | |
83 | $data{$file}{INDEX_ADDDEL} = $adddel; | |
84 | } | |
85 | } | |
86 | ||
87 | for (run_cmd_pipe(qw(git diff-files --numstat --summary))) { | |
88 | if (($add, $del, $file) = | |
89 | /^([-\d]+) ([-\d]+) (.*)/) { | |
90 | if (!exists $data{$file}) { | |
91 | $data{$file} = +{ | |
92 | INDEX => 'unchanged', | |
93 | BINARY => 0, | |
94 | }; | |
95 | } | |
96 | my ($change, $bin); | |
97 | if ($add eq '-' && $del eq '-') { | |
98 | $change = 'binary'; | |
99 | $bin = 1; | |
100 | } | |
101 | else { | |
102 | $change = "+$add/-$del"; | |
103 | } | |
104 | $data{$file}{FILE} = $change; | |
105 | if ($bin) { | |
106 | $data{$file}{BINARY} = 1; | |
107 | } | |
108 | } | |
109 | elsif (($adddel, $file) = | |
110 | /^ (create|delete) mode [0-7]+ (.*)$/) { | |
111 | $data{$file}{FILE_ADDDEL} = $adddel; | |
112 | } | |
113 | } | |
114 | ||
115 | for (sort keys %data) { | |
116 | my $it = $data{$_}; | |
117 | ||
118 | if ($only) { | |
119 | if ($only eq 'index-only') { | |
120 | next if ($it->{INDEX} eq 'unchanged'); | |
121 | } | |
122 | if ($only eq 'file-only') { | |
123 | next if ($it->{FILE} eq 'nothing'); | |
124 | } | |
125 | } | |
126 | push @return, +{ | |
127 | VALUE => $_, | |
128 | PRINT => (sprintf $status_fmt, | |
129 | $it->{INDEX}, $it->{FILE}, $_), | |
130 | %$it, | |
131 | }; | |
132 | } | |
133 | return @return; | |
134 | } | |
135 | ||
136 | sub find_unique { | |
137 | my ($string, @stuff) = @_; | |
138 | my $found = undef; | |
139 | for (my $i = 0; $i < @stuff; $i++) { | |
140 | my $it = $stuff[$i]; | |
141 | my $hit = undef; | |
142 | if (ref $it) { | |
143 | if ((ref $it) eq 'ARRAY') { | |
144 | $it = $it->[0]; | |
145 | } | |
146 | else { | |
147 | $it = $it->{VALUE}; | |
148 | } | |
149 | } | |
150 | eval { | |
151 | if ($it =~ /^$string/) { | |
152 | $hit = 1; | |
153 | }; | |
154 | }; | |
155 | if (defined $hit && defined $found) { | |
156 | return undef; | |
157 | } | |
158 | if ($hit) { | |
159 | $found = $i + 1; | |
160 | } | |
161 | } | |
162 | return $found; | |
163 | } | |
164 | ||
165 | sub list_and_choose { | |
166 | my ($opts, @stuff) = @_; | |
167 | my (@chosen, @return); | |
168 | my $i; | |
169 | ||
170 | TOPLOOP: | |
171 | while (1) { | |
172 | my $last_lf = 0; | |
173 | ||
174 | if ($opts->{HEADER}) { | |
175 | if (!$opts->{LIST_FLAT}) { | |
176 | print " "; | |
177 | } | |
178 | print "$opts->{HEADER}\n"; | |
179 | } | |
180 | for ($i = 0; $i < @stuff; $i++) { | |
181 | my $chosen = $chosen[$i] ? '*' : ' '; | |
182 | my $print = $stuff[$i]; | |
183 | if (ref $print) { | |
184 | if ((ref $print) eq 'ARRAY') { | |
185 | $print = $print->[0]; | |
186 | } | |
187 | else { | |
188 | $print = $print->{PRINT}; | |
189 | } | |
190 | } | |
191 | printf("%s%2d: %s", $chosen, $i+1, $print); | |
192 | if (($opts->{LIST_FLAT}) && | |
193 | (($i + 1) % ($opts->{LIST_FLAT}))) { | |
194 | print "\t"; | |
195 | $last_lf = 0; | |
196 | } | |
197 | else { | |
198 | print "\n"; | |
199 | $last_lf = 1; | |
200 | } | |
201 | } | |
202 | if (!$last_lf) { | |
203 | print "\n"; | |
204 | } | |
205 | ||
206 | return if ($opts->{LIST_ONLY}); | |
207 | ||
208 | print $opts->{PROMPT}; | |
209 | if ($opts->{SINGLETON}) { | |
210 | print "> "; | |
211 | } | |
212 | else { | |
213 | print ">> "; | |
214 | } | |
215 | my $line = <STDIN>; | |
216 | last if (!$line); | |
217 | chomp $line; | |
218 | my $donesomething = 0; | |
219 | for my $choice (split(/[\s,]+/, $line)) { | |
220 | my $choose = 1; | |
221 | my ($bottom, $top); | |
222 | ||
223 | # Input that begins with '-'; unchoose | |
224 | if ($choice =~ s/^-//) { | |
225 | $choose = 0; | |
226 | } | |
227 | # A range can be specified like 5-7 | |
228 | if ($choice =~ /^(\d+)-(\d+)$/) { | |
229 | ($bottom, $top) = ($1, $2); | |
230 | } | |
231 | elsif ($choice =~ /^\d+$/) { | |
232 | $bottom = $top = $choice; | |
233 | } | |
234 | elsif ($choice eq '*') { | |
235 | $bottom = 1; | |
236 | $top = 1 + @stuff; | |
237 | } | |
238 | else { | |
239 | $bottom = $top = find_unique($choice, @stuff); | |
240 | if (!defined $bottom) { | |
241 | print "Huh ($choice)?\n"; | |
242 | next TOPLOOP; | |
243 | } | |
244 | } | |
245 | if ($opts->{SINGLETON} && $bottom != $top) { | |
246 | print "Huh ($choice)?\n"; | |
247 | next TOPLOOP; | |
248 | } | |
249 | for ($i = $bottom-1; $i <= $top-1; $i++) { | |
250 | next if (@stuff <= $i); | |
251 | $chosen[$i] = $choose; | |
252 | $donesomething++; | |
253 | } | |
254 | } | |
255 | last if (!$donesomething || $opts->{IMMEDIATE}); | |
256 | } | |
257 | for ($i = 0; $i < @stuff; $i++) { | |
258 | if ($chosen[$i]) { | |
259 | push @return, $stuff[$i]; | |
260 | } | |
261 | } | |
262 | return @return; | |
263 | } | |
264 | ||
265 | sub status_cmd { | |
266 | list_and_choose({ LIST_ONLY => 1, HEADER => $status_head }, | |
267 | list_modified()); | |
268 | print "\n"; | |
269 | } | |
270 | ||
271 | sub say_n_paths { | |
272 | my $did = shift @_; | |
273 | my $cnt = scalar @_; | |
274 | print "$did "; | |
275 | if (1 < $cnt) { | |
276 | print "$cnt paths\n"; | |
277 | } | |
278 | else { | |
279 | print "one path\n"; | |
280 | } | |
281 | } | |
282 | ||
283 | sub update_cmd { | |
284 | my @mods = list_modified('file-only'); | |
285 | return if (!@mods); | |
286 | ||
287 | my @update = list_and_choose({ PROMPT => 'Update', | |
288 | HEADER => $status_head, }, | |
289 | @mods); | |
290 | if (@update) { | |
a4f7112f | 291 | system(qw(git update-index --add --remove --), |
5cde71d6 JH |
292 | map { $_->{VALUE} } @update); |
293 | say_n_paths('updated', @update); | |
294 | } | |
295 | print "\n"; | |
296 | } | |
297 | ||
298 | sub revert_cmd { | |
299 | my @update = list_and_choose({ PROMPT => 'Revert', | |
300 | HEADER => $status_head, }, | |
301 | list_modified()); | |
302 | if (@update) { | |
303 | my @lines = run_cmd_pipe(qw(git ls-tree HEAD --), | |
304 | map { $_->{VALUE} } @update); | |
305 | my $fh; | |
21e9757e | 306 | open $fh, '| git update-index --index-info' |
5cde71d6 JH |
307 | or die; |
308 | for (@lines) { | |
309 | print $fh $_; | |
310 | } | |
311 | close($fh); | |
312 | for (@update) { | |
313 | if ($_->{INDEX_ADDDEL} && | |
314 | $_->{INDEX_ADDDEL} eq 'create') { | |
315 | system(qw(git update-index --force-remove --), | |
316 | $_->{VALUE}); | |
317 | print "note: $_->{VALUE} is untracked now.\n"; | |
318 | } | |
319 | } | |
320 | refresh(); | |
321 | say_n_paths('reverted', @update); | |
322 | } | |
323 | print "\n"; | |
324 | } | |
325 | ||
326 | sub add_untracked_cmd { | |
327 | my @add = list_and_choose({ PROMPT => 'Add untracked' }, | |
328 | list_untracked()); | |
329 | if (@add) { | |
330 | system(qw(git update-index --add --), @add); | |
331 | say_n_paths('added', @add); | |
332 | } | |
333 | print "\n"; | |
334 | } | |
335 | ||
336 | sub parse_diff { | |
337 | my ($path) = @_; | |
338 | my @diff = run_cmd_pipe(qw(git diff-files -p --), $path); | |
339 | my (@hunk) = { TEXT => [] }; | |
340 | ||
341 | for (@diff) { | |
342 | if (/^@@ /) { | |
343 | push @hunk, { TEXT => [] }; | |
344 | } | |
345 | push @{$hunk[-1]{TEXT}}, $_; | |
346 | } | |
347 | return @hunk; | |
348 | } | |
349 | ||
835b2aeb JH |
350 | sub hunk_splittable { |
351 | my ($text) = @_; | |
352 | ||
353 | my @s = split_hunk($text); | |
354 | return (1 < @s); | |
355 | } | |
356 | ||
357 | sub parse_hunk_header { | |
358 | my ($line) = @_; | |
359 | my ($o_ofs, $o_cnt, $n_ofs, $n_cnt) = | |
360 | $line =~ /^@@ -(\d+)(?:,(\d+)) \+(\d+)(?:,(\d+)) @@/; | |
361 | return ($o_ofs, $o_cnt, $n_ofs, $n_cnt); | |
362 | } | |
363 | ||
364 | sub split_hunk { | |
365 | my ($text) = @_; | |
366 | my @split = (); | |
367 | ||
368 | # If there are context lines in the middle of a hunk, | |
369 | # it can be split, but we would need to take care of | |
370 | # overlaps later. | |
371 | ||
372 | my ($o_ofs, $o_cnt, $n_ofs, $n_cnt) = parse_hunk_header($text->[0]); | |
373 | my $hunk_start = 1; | |
374 | my $next_hunk_start; | |
375 | ||
376 | OUTER: | |
377 | while (1) { | |
378 | my $next_hunk_start = undef; | |
379 | my $i = $hunk_start - 1; | |
380 | my $this = +{ | |
381 | TEXT => [], | |
382 | OLD => $o_ofs, | |
383 | NEW => $n_ofs, | |
384 | OCNT => 0, | |
385 | NCNT => 0, | |
386 | ADDDEL => 0, | |
387 | POSTCTX => 0, | |
388 | }; | |
389 | ||
390 | while (++$i < @$text) { | |
391 | my $line = $text->[$i]; | |
392 | if ($line =~ /^ /) { | |
393 | if ($this->{ADDDEL} && | |
394 | !defined $next_hunk_start) { | |
395 | # We have seen leading context and | |
396 | # adds/dels and then here is another | |
397 | # context, which is trailing for this | |
398 | # split hunk and leading for the next | |
399 | # one. | |
400 | $next_hunk_start = $i; | |
401 | } | |
402 | push @{$this->{TEXT}}, $line; | |
403 | $this->{OCNT}++; | |
404 | $this->{NCNT}++; | |
405 | if (defined $next_hunk_start) { | |
406 | $this->{POSTCTX}++; | |
407 | } | |
408 | next; | |
409 | } | |
410 | ||
411 | # add/del | |
412 | if (defined $next_hunk_start) { | |
413 | # We are done with the current hunk and | |
414 | # this is the first real change for the | |
415 | # next split one. | |
416 | $hunk_start = $next_hunk_start; | |
417 | $o_ofs = $this->{OLD} + $this->{OCNT}; | |
418 | $n_ofs = $this->{NEW} + $this->{NCNT}; | |
419 | $o_ofs -= $this->{POSTCTX}; | |
420 | $n_ofs -= $this->{POSTCTX}; | |
421 | push @split, $this; | |
422 | redo OUTER; | |
423 | } | |
424 | push @{$this->{TEXT}}, $line; | |
425 | $this->{ADDDEL}++; | |
426 | if ($line =~ /^-/) { | |
427 | $this->{OCNT}++; | |
428 | } | |
429 | else { | |
430 | $this->{NCNT}++; | |
431 | } | |
432 | } | |
433 | ||
434 | push @split, $this; | |
435 | last; | |
436 | } | |
437 | ||
438 | for my $hunk (@split) { | |
439 | $o_ofs = $hunk->{OLD}; | |
440 | $n_ofs = $hunk->{NEW}; | |
441 | $o_cnt = $hunk->{OCNT}; | |
442 | $n_cnt = $hunk->{NCNT}; | |
443 | ||
444 | my $head = ("@@ -$o_ofs" . | |
445 | (($o_cnt != 1) ? ",$o_cnt" : '') . | |
446 | " +$n_ofs" . | |
447 | (($n_cnt != 1) ? ",$n_cnt" : '') . | |
448 | " @@\n"); | |
449 | unshift @{$hunk->{TEXT}}, $head; | |
450 | } | |
451 | return map { $_->{TEXT} } @split; | |
452 | } | |
453 | ||
454 | sub find_last_o_ctx { | |
455 | my ($it) = @_; | |
456 | my $text = $it->{TEXT}; | |
457 | my ($o_ofs, $o_cnt, $n_ofs, $n_cnt) = parse_hunk_header($text->[0]); | |
458 | my $i = @{$text}; | |
459 | my $last_o_ctx = $o_ofs + $o_cnt; | |
460 | while (0 < --$i) { | |
461 | my $line = $text->[$i]; | |
462 | if ($line =~ /^ /) { | |
463 | $last_o_ctx--; | |
464 | next; | |
465 | } | |
466 | last; | |
467 | } | |
468 | return $last_o_ctx; | |
469 | } | |
470 | ||
471 | sub merge_hunk { | |
472 | my ($prev, $this) = @_; | |
473 | my ($o0_ofs, $o0_cnt, $n0_ofs, $n0_cnt) = | |
474 | parse_hunk_header($prev->{TEXT}[0]); | |
475 | my ($o1_ofs, $o1_cnt, $n1_ofs, $n1_cnt) = | |
476 | parse_hunk_header($this->{TEXT}[0]); | |
477 | ||
478 | my (@line, $i, $ofs, $o_cnt, $n_cnt); | |
479 | $ofs = $o0_ofs; | |
480 | $o_cnt = $n_cnt = 0; | |
481 | for ($i = 1; $i < @{$prev->{TEXT}}; $i++) { | |
482 | my $line = $prev->{TEXT}[$i]; | |
483 | if ($line =~ /^\+/) { | |
484 | $n_cnt++; | |
485 | push @line, $line; | |
486 | next; | |
487 | } | |
488 | ||
489 | last if ($o1_ofs <= $ofs); | |
490 | ||
491 | $o_cnt++; | |
492 | $ofs++; | |
493 | if ($line =~ /^ /) { | |
494 | $n_cnt++; | |
495 | } | |
496 | push @line, $line; | |
497 | } | |
498 | ||
499 | for ($i = 1; $i < @{$this->{TEXT}}; $i++) { | |
500 | my $line = $this->{TEXT}[$i]; | |
501 | if ($line =~ /^\+/) { | |
502 | $n_cnt++; | |
503 | push @line, $line; | |
504 | next; | |
505 | } | |
506 | $ofs++; | |
507 | $o_cnt++; | |
508 | if ($line =~ /^ /) { | |
509 | $n_cnt++; | |
510 | } | |
511 | push @line, $line; | |
512 | } | |
513 | my $head = ("@@ -$o0_ofs" . | |
514 | (($o_cnt != 1) ? ",$o_cnt" : '') . | |
515 | " +$n0_ofs" . | |
516 | (($n_cnt != 1) ? ",$n_cnt" : '') . | |
517 | " @@\n"); | |
518 | @{$prev->{TEXT}} = ($head, @line); | |
519 | } | |
520 | ||
521 | sub coalesce_overlapping_hunks { | |
522 | my (@in) = @_; | |
523 | my @out = (); | |
524 | ||
525 | my ($last_o_ctx); | |
526 | ||
527 | for (grep { $_->{USE} } @in) { | |
528 | my $text = $_->{TEXT}; | |
529 | my ($o_ofs, $o_cnt, $n_ofs, $n_cnt) = | |
530 | parse_hunk_header($text->[0]); | |
531 | if (defined $last_o_ctx && | |
532 | $o_ofs <= $last_o_ctx) { | |
533 | merge_hunk($out[-1], $_); | |
534 | } | |
535 | else { | |
536 | push @out, $_; | |
537 | } | |
538 | $last_o_ctx = find_last_o_ctx($out[-1]); | |
539 | } | |
540 | return @out; | |
541 | } | |
542 | ||
5cde71d6 JH |
543 | sub help_patch_cmd { |
544 | print <<\EOF ; | |
545 | y - stage this hunk | |
546 | n - do not stage this hunk | |
547 | a - stage this and all the remaining hunks | |
548 | d - do not stage this hunk nor any of the remaining hunks | |
549 | j - leave this hunk undecided, see next undecided hunk | |
550 | J - leave this hunk undecided, see next hunk | |
551 | k - leave this hunk undecided, see previous undecided hunk | |
552 | K - leave this hunk undecided, see previous hunk | |
835b2aeb | 553 | s - split the current hunk into smaller hunks |
5cde71d6 JH |
554 | EOF |
555 | } | |
556 | ||
557 | sub patch_update_cmd { | |
558 | my @mods = list_modified('file-only'); | |
559 | @mods = grep { !($_->{BINARY}) } @mods; | |
560 | return if (!@mods); | |
561 | ||
562 | my ($it) = list_and_choose({ PROMPT => 'Patch update', | |
563 | SINGLETON => 1, | |
564 | IMMEDIATE => 1, | |
565 | HEADER => $status_head, }, | |
566 | @mods); | |
567 | return if (!$it); | |
568 | ||
569 | my ($ix, $num); | |
570 | my $path = $it->{VALUE}; | |
571 | my ($head, @hunk) = parse_diff($path); | |
572 | for (@{$head->{TEXT}}) { | |
573 | print; | |
574 | } | |
575 | $num = scalar @hunk; | |
576 | $ix = 0; | |
577 | ||
578 | while (1) { | |
835b2aeb | 579 | my ($prev, $next, $other, $undecided, $i); |
5cde71d6 JH |
580 | $other = ''; |
581 | ||
582 | if ($num <= $ix) { | |
583 | $ix = 0; | |
584 | } | |
835b2aeb | 585 | for ($i = 0; $i < $ix; $i++) { |
5cde71d6 JH |
586 | if (!defined $hunk[$i]{USE}) { |
587 | $prev = 1; | |
588 | $other .= '/k'; | |
589 | last; | |
590 | } | |
591 | } | |
592 | if ($ix) { | |
593 | $other .= '/K'; | |
594 | } | |
835b2aeb | 595 | for ($i = $ix + 1; $i < $num; $i++) { |
5cde71d6 JH |
596 | if (!defined $hunk[$i]{USE}) { |
597 | $next = 1; | |
598 | $other .= '/j'; | |
599 | last; | |
600 | } | |
601 | } | |
602 | if ($ix < $num - 1) { | |
603 | $other .= '/J'; | |
604 | } | |
835b2aeb | 605 | for ($i = 0; $i < $num; $i++) { |
5cde71d6 JH |
606 | if (!defined $hunk[$i]{USE}) { |
607 | $undecided = 1; | |
608 | last; | |
609 | } | |
610 | } | |
611 | last if (!$undecided); | |
612 | ||
835b2aeb JH |
613 | if (hunk_splittable($hunk[$ix]{TEXT})) { |
614 | $other .= '/s'; | |
615 | } | |
5cde71d6 JH |
616 | for (@{$hunk[$ix]{TEXT}}) { |
617 | print; | |
618 | } | |
619 | print "Stage this hunk [y/n/a/d$other/?]? "; | |
620 | my $line = <STDIN>; | |
621 | if ($line) { | |
622 | if ($line =~ /^y/i) { | |
623 | $hunk[$ix]{USE} = 1; | |
624 | } | |
625 | elsif ($line =~ /^n/i) { | |
626 | $hunk[$ix]{USE} = 0; | |
627 | } | |
628 | elsif ($line =~ /^a/i) { | |
629 | while ($ix < $num) { | |
630 | if (!defined $hunk[$ix]{USE}) { | |
631 | $hunk[$ix]{USE} = 1; | |
632 | } | |
633 | $ix++; | |
634 | } | |
635 | next; | |
636 | } | |
637 | elsif ($line =~ /^d/i) { | |
638 | while ($ix < $num) { | |
639 | if (!defined $hunk[$ix]{USE}) { | |
640 | $hunk[$ix]{USE} = 0; | |
641 | } | |
642 | $ix++; | |
643 | } | |
644 | next; | |
645 | } | |
646 | elsif ($other =~ /K/ && $line =~ /^K/) { | |
647 | $ix--; | |
648 | next; | |
649 | } | |
650 | elsif ($other =~ /J/ && $line =~ /^J/) { | |
651 | $ix++; | |
652 | next; | |
653 | } | |
654 | elsif ($other =~ /k/ && $line =~ /^k/) { | |
655 | while (1) { | |
656 | $ix--; | |
657 | last if (!$ix || | |
658 | !defined $hunk[$ix]{USE}); | |
659 | } | |
660 | next; | |
661 | } | |
662 | elsif ($other =~ /j/ && $line =~ /^j/) { | |
663 | while (1) { | |
664 | $ix++; | |
665 | last if ($ix >= $num || | |
666 | !defined $hunk[$ix]{USE}); | |
667 | } | |
668 | next; | |
669 | } | |
835b2aeb JH |
670 | elsif ($other =~ /s/ && $line =~ /^s/) { |
671 | my @split = split_hunk($hunk[$ix]{TEXT}); | |
672 | if (1 < @split) { | |
673 | print "Split into ", | |
674 | scalar(@split), " hunks.\n"; | |
675 | } | |
676 | splice(@hunk, $ix, 1, | |
677 | map { +{ TEXT => $_, USE => undef } } | |
678 | @split); | |
679 | $num = scalar @hunk; | |
680 | next; | |
681 | } | |
5cde71d6 JH |
682 | else { |
683 | help_patch_cmd($other); | |
684 | next; | |
685 | } | |
686 | # soft increment | |
687 | while (1) { | |
688 | $ix++; | |
689 | last if ($ix >= $num || | |
690 | !defined $hunk[$ix]{USE}); | |
691 | } | |
692 | } | |
693 | } | |
694 | ||
835b2aeb JH |
695 | @hunk = coalesce_overlapping_hunks(@hunk); |
696 | ||
697 | my ($o_lofs, $n_lofs) = (0, 0); | |
5cde71d6 JH |
698 | my @result = (); |
699 | for (@hunk) { | |
700 | my $text = $_->{TEXT}; | |
701 | my ($o_ofs, $o_cnt, $n_ofs, $n_cnt) = | |
835b2aeb JH |
702 | parse_hunk_header($text->[0]); |
703 | ||
5cde71d6 | 704 | if (!$_->{USE}) { |
835b2aeb JH |
705 | if (!defined $o_cnt) { $o_cnt = 1; } |
706 | if (!defined $n_cnt) { $n_cnt = 1; } | |
707 | ||
708 | # We would have added ($n_cnt - $o_cnt) lines | |
709 | # to the postimage if we were to use this hunk, | |
710 | # but we didn't. So the line number that the next | |
711 | # hunk starts at would be shifted by that much. | |
712 | $n_lofs -= ($n_cnt - $o_cnt); | |
5cde71d6 JH |
713 | next; |
714 | } | |
715 | else { | |
835b2aeb JH |
716 | if ($n_lofs) { |
717 | $n_ofs += $n_lofs; | |
718 | $text->[0] = ("@@ -$o_ofs" . | |
719 | ((defined $o_cnt) | |
720 | ? ",$o_cnt" : '') . | |
721 | " +$n_ofs" . | |
722 | ((defined $n_cnt) | |
723 | ? ",$n_cnt" : '') . | |
724 | " @@\n"); | |
725 | } | |
5cde71d6 JH |
726 | for (@$text) { |
727 | push @result, $_; | |
728 | } | |
729 | } | |
730 | } | |
731 | ||
732 | if (@result) { | |
733 | my $fh; | |
734 | ||
21e9757e | 735 | open $fh, '| git apply --cached'; |
5cde71d6 JH |
736 | for (@{$head->{TEXT}}, @result) { |
737 | print $fh $_; | |
738 | } | |
835b2aeb JH |
739 | if (!close $fh) { |
740 | for (@{$head->{TEXT}}, @result) { | |
741 | print STDERR $_; | |
742 | } | |
743 | } | |
5cde71d6 JH |
744 | refresh(); |
745 | } | |
746 | ||
747 | print "\n"; | |
748 | } | |
749 | ||
750 | sub diff_cmd { | |
751 | my @mods = list_modified('index-only'); | |
752 | @mods = grep { !($_->{BINARY}) } @mods; | |
753 | return if (!@mods); | |
754 | my (@them) = list_and_choose({ PROMPT => 'Review diff', | |
755 | IMMEDIATE => 1, | |
756 | HEADER => $status_head, }, | |
757 | @mods); | |
758 | return if (!@them); | |
759 | system(qw(git diff-index -p --cached HEAD --), | |
760 | map { $_->{VALUE} } @them); | |
761 | } | |
762 | ||
763 | sub quit_cmd { | |
764 | print "Bye.\n"; | |
765 | exit(0); | |
766 | } | |
767 | ||
768 | sub help_cmd { | |
769 | print <<\EOF ; | |
770 | status - show paths with changes | |
771 | update - add working tree state to the staged set of changes | |
772 | revert - revert staged set of changes back to the HEAD version | |
773 | patch - pick hunks and update selectively | |
774 | diff - view diff between HEAD and index | |
775 | add untracked - add contents of untracked files to the staged set of changes | |
776 | EOF | |
777 | } | |
778 | ||
779 | sub main_loop { | |
780 | my @cmd = ([ 'status', \&status_cmd, ], | |
781 | [ 'update', \&update_cmd, ], | |
782 | [ 'revert', \&revert_cmd, ], | |
783 | [ 'add untracked', \&add_untracked_cmd, ], | |
784 | [ 'patch', \&patch_update_cmd, ], | |
785 | [ 'diff', \&diff_cmd, ], | |
786 | [ 'quit', \&quit_cmd, ], | |
787 | [ 'help', \&help_cmd, ], | |
788 | ); | |
789 | while (1) { | |
790 | my ($it) = list_and_choose({ PROMPT => 'What now', | |
791 | SINGLETON => 1, | |
792 | LIST_FLAT => 4, | |
793 | HEADER => '*** Commands ***', | |
794 | IMMEDIATE => 1 }, @cmd); | |
795 | if ($it) { | |
796 | eval { | |
797 | $it->[1]->(); | |
798 | }; | |
799 | if ($@) { | |
800 | print "$@"; | |
801 | } | |
802 | } | |
803 | } | |
804 | } | |
805 | ||
806 | my @z; | |
807 | ||
808 | refresh(); | |
809 | status_cmd(); | |
810 | main_loop(); |