1#!/usr/bin/perl
2use 5.008;
4use strict;
5use warnings;
6use Git qw(unquote_path);
7use Git::I18N;
8binmode(STDOUT, ":raw");
10my $repo = Git->repository();
12my $menu_use_color = $repo->get_colorbool('color.interactive');
14my ($prompt_color, $header_color, $help_color) =
15 $menu_use_color ? (
16 $repo->get_color('color.interactive.prompt', 'bold blue'),
17 $repo->get_color('color.interactive.header', 'bold'),
18 $repo->get_color('color.interactive.help', 'red bold'),
19 ) : ();
20my $error_color = ();
21if ($menu_use_color) {
22 my $help_color_spec = ($repo->config('color.interactive.help') or
23 'red bold');
24 $error_color = $repo->get_color('color.interactive.error',
25 $help_color_spec);
26}
27my $diff_use_color = $repo->get_colorbool('color.diff');
29my ($fraginfo_color) =
30 $diff_use_color ? (
31 $repo->get_color('color.diff.frag', 'cyan'),
32 ) : ();
33my ($diff_plain_color) =
34 $diff_use_color ? (
35 $repo->get_color('color.diff.plain', ''),
36 ) : ();
37my ($diff_old_color) =
38 $diff_use_color ? (
39 $repo->get_color('color.diff.old', 'red'),
40 ) : ();
41my ($diff_new_color) =
42 $diff_use_color ? (
43 $repo->get_color('color.diff.new', 'green'),
44 ) : ();
45my $normal_color = $repo->get_color("", "reset");
47my $diff_algorithm = $repo->config('diff.algorithm');
49my $diff_filter = $repo->config('interactive.difffilter');
50my $use_readkey = 0;
52my $use_termcap = 0;
53my %term_escapes;
54sub ReadMode;
56sub ReadKey;
57if ($repo->config_bool("interactive.singlekey")) {
58 eval {
59 require Term::ReadKey;
60 Term::ReadKey->import;
61 $use_readkey = 1;
62 };
63 if (!$use_readkey) {
64 print STDERR "missing Term::ReadKey, disabling interactive.singlekey\n";
65 }
66 eval {
67 require Term::Cap;
68 my $termcap = Term::Cap->Tgetent;
69 foreach (values %$termcap) {
70 $term_escapes{$_} = 1 if /^\e/;
71 }
72 $use_termcap = 1;
73 };
74}
75sub colored {
77 my $color = shift;
78 my $string = join("", @_);
79 if (defined $color) {
81 # Put a color code at the beginning of each line, a reset at the end
82 # color after newlines that are not at the end of the string
83 $string =~ s/(\n+)(.)/$1$color$2/g;
84 # reset before newlines
85 $string =~ s/(\n+)/$normal_color$1/g;
86 # codes at beginning and end (if necessary):
87 $string =~ s/^/$color/;
88 $string =~ s/$/$normal_color/ unless $string =~ /\n$/;
89 }
90 return $string;
91}
92# command line options
94my $patch_mode_only;
95my $patch_mode;
96my $patch_mode_revision;
97sub apply_patch;
99sub apply_patch_for_checkout_commit;
100sub apply_patch_for_stash;
101my %patch_modes = (
103 'stage' => {
104 DIFF => 'diff-files -p',
105 APPLY => sub { apply_patch 'apply --cached', @_; },
106 APPLY_CHECK => 'apply --cached',
107 FILTER => 'file-only',
108 IS_REVERSE => 0,
109 },
110 'stash' => {
111 DIFF => 'diff-index -p HEAD',
112 APPLY => sub { apply_patch 'apply --cached', @_; },
113 APPLY_CHECK => 'apply --cached',
114 FILTER => undef,
115 IS_REVERSE => 0,
116 },
117 'reset_head' => {
118 DIFF => 'diff-index -p --cached',
119 APPLY => sub { apply_patch 'apply -R --cached', @_; },
120 APPLY_CHECK => 'apply -R --cached',
121 FILTER => 'index-only',
122 IS_REVERSE => 1,
123 },
124 'reset_nothead' => {
125 DIFF => 'diff-index -R -p --cached',
126 APPLY => sub { apply_patch 'apply --cached', @_; },
127 APPLY_CHECK => 'apply --cached',
128 FILTER => 'index-only',
129 IS_REVERSE => 0,
130 },
131 'checkout_index' => {
132 DIFF => 'diff-files -p',
133 APPLY => sub { apply_patch 'apply -R', @_; },
134 APPLY_CHECK => 'apply -R',
135 FILTER => 'file-only',
136 IS_REVERSE => 1,
137 },
138 'checkout_head' => {
139 DIFF => 'diff-index -p',
140 APPLY => sub { apply_patch_for_checkout_commit '-R', @_ },
141 APPLY_CHECK => 'apply -R',
142 FILTER => undef,
143 IS_REVERSE => 1,
144 },
145 'checkout_nothead' => {
146 DIFF => 'diff-index -R -p',
147 APPLY => sub { apply_patch_for_checkout_commit '', @_ },
148 APPLY_CHECK => 'apply',
149 FILTER => undef,
150 IS_REVERSE => 0,
151 },
152);
153$patch_mode = 'stage';
155my %patch_mode_flavour = %{$patch_modes{$patch_mode}};
156sub run_cmd_pipe {
158 if ($^O eq 'MSWin32') {
159 my @invalid = grep {m/[":*]/} @_;
160 die "$^O does not support: @invalid\n" if @invalid;
161 my @args = map { m/ /o ? "\"$_\"": $_ } @_;
162 return qx{@args};
163 } else {
164 my $fh = undef;
165 open($fh, '-|', @_) or die;
166 return <$fh>;
167 }
168}
169my ($GIT_DIR) = run_cmd_pipe(qw(git rev-parse --git-dir));
171if (!defined $GIT_DIR) {
173 exit(1); # rev-parse would have already said "not a git repo"
174}
175chomp($GIT_DIR);
176sub refresh {
178 my $fh;
179 open $fh, 'git update-index --refresh |'
180 or die;
181 while (<$fh>) {
182 ;# ignore 'needs update'
183 }
184 close $fh;
185}
186sub list_untracked {
188 map {
189 chomp $_;
190 unquote_path($_);
191 }
192 run_cmd_pipe(qw(git ls-files --others --exclude-standard --), @ARGV);
193}
194# TRANSLATORS: you can adjust this to align "git add -i" status menu
196my $status_fmt = __('%12s %12s %s');
197my $status_head = sprintf($status_fmt, __('staged'), __('unstaged'), __('path'));
198{
200 my $initial;
201 sub is_initial_commit {
202 $initial = system('git rev-parse HEAD -- >/dev/null 2>&1') != 0
203 unless defined $initial;
204 return $initial;
205 }
206}
207sub get_empty_tree {
209 return '4b825dc642cb6eb9a060e54bf8d69288fbee4904';
210}
211sub get_diff_reference {
213 my $ref = shift;
214 if (defined $ref and $ref ne 'HEAD') {
215 return $ref;
216 } elsif (is_initial_commit()) {
217 return get_empty_tree();
218 } else {
219 return 'HEAD';
220 }
221}
222# Returns list of hashes, contents of each of which are:
224# VALUE: pathname
225# BINARY: is a binary path
226# INDEX: is index different from HEAD?
227# FILE: is file different from index?
228# INDEX_ADDDEL: is it add/delete between HEAD and index?
229# FILE_ADDDEL: is it add/delete between index and file?
230# UNMERGED: is the path unmerged
231sub list_modified {
233 my ($only) = @_;
234 my (%data, @return);
235 my ($add, $del, $adddel, $file);
236 my $reference = get_diff_reference($patch_mode_revision);
238 for (run_cmd_pipe(qw(git diff-index --cached
239 --numstat --summary), $reference,
240 '--', @ARGV)) {
241 if (($add, $del, $file) =
242 /^([-\d]+) ([-\d]+) (.*)/) {
243 my ($change, $bin);
244 $file = unquote_path($file);
245 if ($add eq '-' && $del eq '-') {
246 $change = __('binary');
247 $bin = 1;
248 }
249 else {
250 $change = "+$add/-$del";
251 }
252 $data{$file} = {
253 INDEX => $change,
254 BINARY => $bin,
255 FILE => __('nothing'),
256 }
257 }
258 elsif (($adddel, $file) =
259 /^ (create|delete) mode [0-7]+ (.*)$/) {
260 $file = unquote_path($file);
261 $data{$file}{INDEX_ADDDEL} = $adddel;
262 }
263 }
264 for (run_cmd_pipe(qw(git diff-files --numstat --summary --raw --), @ARGV)) {
266 if (($add, $del, $file) =
267 /^([-\d]+) ([-\d]+) (.*)/) {
268 $file = unquote_path($file);
269 my ($change, $bin);
270 if ($add eq '-' && $del eq '-') {
271 $change = __('binary');
272 $bin = 1;
273 }
274 else {
275 $change = "+$add/-$del";
276 }
277 $data{$file}{FILE} = $change;
278 if ($bin) {
279 $data{$file}{BINARY} = 1;
280 }
281 }
282 elsif (($adddel, $file) =
283 /^ (create|delete) mode [0-7]+ (.*)$/) {
284 $file = unquote_path($file);
285 $data{$file}{FILE_ADDDEL} = $adddel;
286 }
287 elsif (/^:[0-7]+ [0-7]+ [0-9a-f]+ [0-9a-f]+ (.) (.*)$/) {
288 $file = unquote_path($2);
289 if (!exists $data{$file}) {
290 $data{$file} = +{
291 INDEX => __('unchanged'),
292 BINARY => 0,
293 };
294 }
295 if ($1 eq 'U') {
296 $data{$file}{UNMERGED} = 1;
297 }
298 }
299 }
300 for (sort keys %data) {
302 my $it = $data{$_};
303 if ($only) {
305 if ($only eq 'index-only') {
306 next if ($it->{INDEX} eq __('unchanged'));
307 }
308 if ($only eq 'file-only') {
309 next if ($it->{FILE} eq __('nothing'));
310 }
311 }
312 push @return, +{
313 VALUE => $_,
314 %$it,
315 };
316 }
317 return @return;
318}
319sub find_unique {
321 my ($string, @stuff) = @_;
322 my $found = undef;
323 for (my $i = 0; $i < @stuff; $i++) {
324 my $it = $stuff[$i];
325 my $hit = undef;
326 if (ref $it) {
327 if ((ref $it) eq 'ARRAY') {
328 $it = $it->[0];
329 }
330 else {
331 $it = $it->{VALUE};
332 }
333 }
334 eval {
335 if ($it =~ /^$string/) {
336 $hit = 1;
337 };
338 };
339 if (defined $hit && defined $found) {
340 return undef;
341 }
342 if ($hit) {
343 $found = $i + 1;
344 }
345 }
346 return $found;
347}
348# inserts string into trie and updates count for each character
350sub update_trie {
351 my ($trie, $string) = @_;
352 foreach (split //, $string) {
353 $trie = $trie->{$_} ||= {COUNT => 0};
354 $trie->{COUNT}++;
355 }
356}
357# returns an array of tuples (prefix, remainder)
359sub find_unique_prefixes {
360 my @stuff = @_;
361 my @return = ();
362 # any single prefix exceeding the soft limit is omitted
364 # if any prefix exceeds the hard limit all are omitted
365 # 0 indicates no limit
366 my $soft_limit = 0;
367 my $hard_limit = 3;
368 # build a trie modelling all possible options
370 my %trie;
371 foreach my $print (@stuff) {
372 if ((ref $print) eq 'ARRAY') {
373 $print = $print->[0];
374 }
375 elsif ((ref $print) eq 'HASH') {
376 $print = $print->{VALUE};
377 }
378 update_trie(\%trie, $print);
379 push @return, $print;
380 }
381 # use the trie to find the unique prefixes
383 for (my $i = 0; $i < @return; $i++) {
384 my $ret = $return[$i];
385 my @letters = split //, $ret;
386 my %search = %trie;
387 my ($prefix, $remainder);
388 my $j;
389 for ($j = 0; $j < @letters; $j++) {
390 my $letter = $letters[$j];
391 if ($search{$letter}{COUNT} == 1) {
392 $prefix = substr $ret, 0, $j + 1;
393 $remainder = substr $ret, $j + 1;
394 last;
395 }
396 else {
397 my $prefix = substr $ret, 0, $j;
398 return ()
399 if ($hard_limit && $j + 1 > $hard_limit);
400 }
401 %search = %{$search{$letter}};
402 }
403 if (ord($letters[0]) > 127 ||
404 ($soft_limit && $j + 1 > $soft_limit)) {
405 $prefix = undef;
406 $remainder = $ret;
407 }
408 $return[$i] = [$prefix, $remainder];
409 }
410 return @return;
411}
412# filters out prefixes which have special meaning to list_and_choose()
414sub is_valid_prefix {
415 my $prefix = shift;
416 return (defined $prefix) &&
417 !($prefix =~ /[\s,]/) && # separators
418 !($prefix =~ /^-/) && # deselection
419 !($prefix =~ /^\d+/) && # selection
420 ($prefix ne '*') && # "all" wildcard
421 ($prefix ne '?'); # prompt help
422}
423# given a prefix/remainder tuple return a string with the prefix highlighted
425# for now use square brackets; later might use ANSI colors (underline, bold)
426sub highlight_prefix {
427 my $prefix = shift;
428 my $remainder = shift;
429 if (!defined $prefix) {
431 return $remainder;
432 }
433 if (!is_valid_prefix($prefix)) {
435 return "$prefix$remainder";
436 }
437 if (!$menu_use_color) {
439 return "[$prefix]$remainder";
440 }
441 return "$prompt_color$prefix$normal_color$remainder";
443}
444sub error_msg {
446 print STDERR colored $error_color, @_;
447}
448sub list_and_choose {
450 my ($opts, @stuff) = @_;
451 my (@chosen, @return);
452 if (!@stuff) {
453 return @return;
454 }
455 my $i;
456 my @prefixes = find_unique_prefixes(@stuff) unless $opts->{LIST_ONLY};
457 TOPLOOP:
459 while (1) {
460 my $last_lf = 0;
461 if ($opts->{HEADER}) {
463 if (!$opts->{LIST_FLAT}) {
464 print " ";
465 }
466 print colored $header_color, "$opts->{HEADER}\n";
467 }
468 for ($i = 0; $i < @stuff; $i++) {
469 my $chosen = $chosen[$i] ? '*' : ' ';
470 my $print = $stuff[$i];
471 my $ref = ref $print;
472 my $highlighted = highlight_prefix(@{$prefixes[$i]})
473 if @prefixes;
474 if ($ref eq 'ARRAY') {
475 $print = $highlighted || $print->[0];
476 }
477 elsif ($ref eq 'HASH') {
478 my $value = $highlighted || $print->{VALUE};
479 $print = sprintf($status_fmt,
480 $print->{INDEX},
481 $print->{FILE},
482 $value);
483 }
484 else {
485 $print = $highlighted || $print;
486 }
487 printf("%s%2d: %s", $chosen, $i+1, $print);
488 if (($opts->{LIST_FLAT}) &&
489 (($i + 1) % ($opts->{LIST_FLAT}))) {
490 print "\t";
491 $last_lf = 0;
492 }
493 else {
494 print "\n";
495 $last_lf = 1;
496 }
497 }
498 if (!$last_lf) {
499 print "\n";
500 }
501 return if ($opts->{LIST_ONLY});
503 print colored $prompt_color, $opts->{PROMPT};
505 if ($opts->{SINGLETON}) {
506 print "> ";
507 }
508 else {
509 print ">> ";
510 }
511 my $line = <STDIN>;
512 if (!$line) {
513 print "\n";
514 $opts->{ON_EOF}->() if $opts->{ON_EOF};
515 last;
516 }
517 chomp $line;
518 last if $line eq '';
519 if ($line eq '?') {
520 $opts->{SINGLETON} ?
521 singleton_prompt_help_cmd() :
522 prompt_help_cmd();
523 next TOPLOOP;
524 }
525 for my $choice (split(/[\s,]+/, $line)) {
526 my $choose = 1;
527 my ($bottom, $top);
528 # Input that begins with '-'; unchoose
530 if ($choice =~ s/^-//) {
531 $choose = 0;
532 }
533 # A range can be specified like 5-7 or 5-.
534 if ($choice =~ /^(\d+)-(\d*)$/) {
535 ($bottom, $top) = ($1, length($2) ? $2 : 1 + @stuff);
536 }
537 elsif ($choice =~ /^\d+$/) {
538 $bottom = $top = $choice;
539 }
540 elsif ($choice eq '*') {
541 $bottom = 1;
542 $top = 1 + @stuff;
543 }
544 else {
545 $bottom = $top = find_unique($choice, @stuff);
546 if (!defined $bottom) {
547 error_msg sprintf(__("Huh (%s)?\n"), $choice);
548 next TOPLOOP;
549 }
550 }
551 if ($opts->{SINGLETON} && $bottom != $top) {
552 error_msg sprintf(__("Huh (%s)?\n"), $choice);
553 next TOPLOOP;
554 }
555 for ($i = $bottom-1; $i <= $top-1; $i++) {
556 next if (@stuff <= $i || $i < 0);
557 $chosen[$i] = $choose;
558 }
559 }
560 last if ($opts->{IMMEDIATE} || $line eq '*');
561 }
562 for ($i = 0; $i < @stuff; $i++) {
563 if ($chosen[$i]) {
564 push @return, $stuff[$i];
565 }
566 }
567 return @return;
568}
569sub singleton_prompt_help_cmd {
571 print colored $help_color, __ <<'EOF' ;
572Prompt help:
5731 - select a numbered item
574foo - select item based on unique prefix
575 - (empty) select nothing
576EOF
577}
578sub prompt_help_cmd {
580 print colored $help_color, __ <<'EOF' ;
581Prompt help:
5821 - select a single item
5833-5 - select a range of items
5842-3,6-9 - select multiple ranges
585foo - select item based on unique prefix
586-... - unselect specified items
587* - choose all items
588 - (empty) finish selecting
589EOF
590}
591sub status_cmd {
593 list_and_choose({ LIST_ONLY => 1, HEADER => $status_head },
594 list_modified());
595 print "\n";
596}
597sub say_n_paths {
599 my $did = shift @_;
600 my $cnt = scalar @_;
601 if ($did eq 'added') {
602 printf(__n("added %d path\n", "added %d paths\n",
603 $cnt), $cnt);
604 } elsif ($did eq 'updated') {
605 printf(__n("updated %d path\n", "updated %d paths\n",
606 $cnt), $cnt);
607 } elsif ($did eq 'reverted') {
608 printf(__n("reverted %d path\n", "reverted %d paths\n",
609 $cnt), $cnt);
610 } else {
611 printf(__n("touched %d path\n", "touched %d paths\n",
612 $cnt), $cnt);
613 }
614}
615sub update_cmd {
617 my @mods = list_modified('file-only');
618 return if (!@mods);
619 my @update = list_and_choose({ PROMPT => __('Update'),
621 HEADER => $status_head, },
622 @mods);
623 if (@update) {
624 system(qw(git update-index --add --remove --),
625 map { $_->{VALUE} } @update);
626 say_n_paths('updated', @update);
627 }
628 print "\n";
629}
630sub revert_cmd {
632 my @update = list_and_choose({ PROMPT => __('Revert'),
633 HEADER => $status_head, },
634 list_modified());
635 if (@update) {
636 if (is_initial_commit()) {
637 system(qw(git rm --cached),
638 map { $_->{VALUE} } @update);
639 }
640 else {
641 my @lines = run_cmd_pipe(qw(git ls-tree HEAD --),
642 map { $_->{VALUE} } @update);
643 my $fh;
644 open $fh, '| git update-index --index-info'
645 or die;
646 for (@lines) {
647 print $fh $_;
648 }
649 close($fh);
650 for (@update) {
651 if ($_->{INDEX_ADDDEL} &&
652 $_->{INDEX_ADDDEL} eq 'create') {
653 system(qw(git update-index --force-remove --),
654 $_->{VALUE});
655 printf(__("note: %s is untracked now.\n"), $_->{VALUE});
656 }
657 }
658 }
659 refresh();
660 say_n_paths('reverted', @update);
661 }
662 print "\n";
663}
664sub add_untracked_cmd {
666 my @add = list_and_choose({ PROMPT => __('Add untracked') },
667 list_untracked());
668 if (@add) {
669 system(qw(git update-index --add --), @add);
670 say_n_paths('added', @add);
671 } else {
672 print __("No untracked files.\n");
673 }
674 print "\n";
675}
676sub run_git_apply {
678 my $cmd = shift;
679 my $fh;
680 open $fh, '| git ' . $cmd . " --allow-overlap";
681 print $fh @_;
682 return close $fh;
683}
684sub parse_diff {
686 my ($path) = @_;
687 my @diff_cmd = split(" ", $patch_mode_flavour{DIFF});
688 if (defined $diff_algorithm) {
689 splice @diff_cmd, 1, 0, "--diff-algorithm=${diff_algorithm}";
690 }
691 if (defined $patch_mode_revision) {
692 push @diff_cmd, get_diff_reference($patch_mode_revision);
693 }
694 my @diff = run_cmd_pipe("git", @diff_cmd, "--", $path);
695 my @colored = ();
696 if ($diff_use_color) {
697 my @display_cmd = ("git", @diff_cmd, qw(--color --), $path);
698 if (defined $diff_filter) {
699 # quotemeta is overkill, but sufficient for shell-quoting
700 my $diff = join(' ', map { quotemeta } @display_cmd);
701 @display_cmd = ("$diff | $diff_filter");
702 }
703 @colored = run_cmd_pipe(@display_cmd);
705 }
706 my (@hunk) = { TEXT => [], DISPLAY => [], TYPE => 'header' };
707 for (my $i = 0; $i < @diff; $i++) {
709 if ($diff[$i] =~ /^@@ /) {
710 push @hunk, { TEXT => [], DISPLAY => [],
711 TYPE => 'hunk' };
712 }
713 push @{$hunk[-1]{TEXT}}, $diff[$i];
714 push @{$hunk[-1]{DISPLAY}},
715 (@colored ? $colored[$i] : $diff[$i]);
716 }
717 return @hunk;
718}
719sub parse_diff_header {
721 my $src = shift;
722 my $head = { TEXT => [], DISPLAY => [], TYPE => 'header' };
724 my $mode = { TEXT => [], DISPLAY => [], TYPE => 'mode' };
725 my $deletion = { TEXT => [], DISPLAY => [], TYPE => 'deletion' };
726 for (my $i = 0; $i < @{$src->{TEXT}}; $i++) {
728 my $dest =
729 $src->{TEXT}->[$i] =~ /^(old|new) mode (\d+)$/ ? $mode :
730 $src->{TEXT}->[$i] =~ /^deleted file/ ? $deletion :
731 $head;
732 push @{$dest->{TEXT}}, $src->{TEXT}->[$i];
733 push @{$dest->{DISPLAY}}, $src->{DISPLAY}->[$i];
734 }
735 return ($head, $mode, $deletion);
736}
737sub hunk_splittable {
739 my ($text) = @_;
740 my @s = split_hunk($text);
742 return (1 < @s);
743}
744sub parse_hunk_header {
746 my ($line) = @_;
747 my ($o_ofs, $o_cnt, $n_ofs, $n_cnt) =
748 $line =~ /^@@ -(\d+)(?:,(\d+))? \+(\d+)(?:,(\d+))? @@/;
749 $o_cnt = 1 unless defined $o_cnt;
750 $n_cnt = 1 unless defined $n_cnt;
751 return ($o_ofs, $o_cnt, $n_ofs, $n_cnt);
752}
753sub format_hunk_header {
755 my ($o_ofs, $o_cnt, $n_ofs, $n_cnt) = @_;
756 return ("@@ -$o_ofs" .
757 (($o_cnt != 1) ? ",$o_cnt" : '') .
758 " +$n_ofs" .
759 (($n_cnt != 1) ? ",$n_cnt" : '') .
760 " @@\n");
761}
762sub split_hunk {
764 my ($text, $display) = @_;
765 my @split = ();
766 if (!defined $display) {
767 $display = $text;
768 }
769 # If there are context lines in the middle of a hunk,
770 # it can be split, but we would need to take care of
771 # overlaps later.
772 my ($o_ofs, undef, $n_ofs) = parse_hunk_header($text->[0]);
774 my $hunk_start = 1;
775 OUTER:
777 while (1) {
778 my $next_hunk_start = undef;
779 my $i = $hunk_start - 1;
780 my $this = +{
781 TEXT => [],
782 DISPLAY => [],
783 TYPE => 'hunk',
784 OLD => $o_ofs,
785 NEW => $n_ofs,
786 OCNT => 0,
787 NCNT => 0,
788 ADDDEL => 0,
789 POSTCTX => 0,
790 USE => undef,
791 };
792 while (++$i < @$text) {
794 my $line = $text->[$i];
795 my $display = $display->[$i];
796 if ($line =~ /^\\/) {
797 push @{$this->{TEXT}}, $line;
798 push @{$this->{DISPLAY}}, $display;
799 next;
800 }
801 if ($line =~ /^ /) {
802 if ($this->{ADDDEL} &&
803 !defined $next_hunk_start) {
804 # We have seen leading context and
805 # adds/dels and then here is another
806 # context, which is trailing for this
807 # split hunk and leading for the next
808 # one.
809 $next_hunk_start = $i;
810 }
811 push @{$this->{TEXT}}, $line;
812 push @{$this->{DISPLAY}}, $display;
813 $this->{OCNT}++;
814 $this->{NCNT}++;
815 if (defined $next_hunk_start) {
816 $this->{POSTCTX}++;
817 }
818 next;
819 }
820 # add/del
822 if (defined $next_hunk_start) {
823 # We are done with the current hunk and
824 # this is the first real change for the
825 # next split one.
826 $hunk_start = $next_hunk_start;
827 $o_ofs = $this->{OLD} + $this->{OCNT};
828 $n_ofs = $this->{NEW} + $this->{NCNT};
829 $o_ofs -= $this->{POSTCTX};
830 $n_ofs -= $this->{POSTCTX};
831 push @split, $this;
832 redo OUTER;
833 }
834 push @{$this->{TEXT}}, $line;
835 push @{$this->{DISPLAY}}, $display;
836 $this->{ADDDEL}++;
837 if ($line =~ /^-/) {
838 $this->{OCNT}++;
839 }
840 else {
841 $this->{NCNT}++;
842 }
843 }
844 push @split, $this;
846 last;
847 }
848 for my $hunk (@split) {
850 $o_ofs = $hunk->{OLD};
851 $n_ofs = $hunk->{NEW};
852 my $o_cnt = $hunk->{OCNT};
853 my $n_cnt = $hunk->{NCNT};
854 my $head = format_hunk_header($o_ofs, $o_cnt, $n_ofs, $n_cnt);
856 my $display_head = $head;
857 unshift @{$hunk->{TEXT}}, $head;
858 if ($diff_use_color) {
859 $display_head = colored($fraginfo_color, $head);
860 }
861 unshift @{$hunk->{DISPLAY}}, $display_head;
862 }
863 return @split;
864}
865sub find_last_o_ctx {
867 my ($it) = @_;
868 my $text = $it->{TEXT};
869 my ($o_ofs, $o_cnt) = parse_hunk_header($text->[0]);
870 my $i = @{$text};
871 my $last_o_ctx = $o_ofs + $o_cnt;
872 while (0 < --$i) {
873 my $line = $text->[$i];
874 if ($line =~ /^ /) {
875 $last_o_ctx--;
876 next;
877 }
878 last;
879 }
880 return $last_o_ctx;
881}
882sub merge_hunk {
884 my ($prev, $this) = @_;
885 my ($o0_ofs, $o0_cnt, $n0_ofs, $n0_cnt) =
886 parse_hunk_header($prev->{TEXT}[0]);
887 my ($o1_ofs, $o1_cnt, $n1_ofs, $n1_cnt) =
888 parse_hunk_header($this->{TEXT}[0]);
889 my (@line, $i, $ofs, $o_cnt, $n_cnt);
891 $ofs = $o0_ofs;
892 $o_cnt = $n_cnt = 0;
893 for ($i = 1; $i < @{$prev->{TEXT}}; $i++) {
894 my $line = $prev->{TEXT}[$i];
895 if ($line =~ /^\+/) {
896 $n_cnt++;
897 push @line, $line;
898 next;
899 } elsif ($line =~ /^\\/) {
900 push @line, $line;
901 next;
902 }
903 last if ($o1_ofs <= $ofs);
905 $o_cnt++;
907 $ofs++;
908 if ($line =~ /^ /) {
909 $n_cnt++;
910 }
911 push @line, $line;
912 }
913 for ($i = 1; $i < @{$this->{TEXT}}; $i++) {
915 my $line = $this->{TEXT}[$i];
916 if ($line =~ /^\+/) {
917 $n_cnt++;
918 push @line, $line;
919 next;
920 } elsif ($line =~ /^\\/) {
921 push @line, $line;
922 next;
923 }
924 $ofs++;
925 $o_cnt++;
926 if ($line =~ /^ /) {
927 $n_cnt++;
928 }
929 push @line, $line;
930 }
931 my $head = format_hunk_header($o0_ofs, $o_cnt, $n0_ofs, $n_cnt);
932 @{$prev->{TEXT}} = ($head, @line);
933}
934sub coalesce_overlapping_hunks {
936 my (@in) = @_;
937 my @out = ();
938 my ($last_o_ctx, $last_was_dirty);
940 my $ofs_delta = 0;
941 for (@in) {
943 if ($_->{TYPE} ne 'hunk') {
944 push @out, $_;
945 next;
946 }
947 my $text = $_->{TEXT};
948 my ($o_ofs, $o_cnt, $n_ofs, $n_cnt) =
949 parse_hunk_header($text->[0]);
950 unless ($_->{USE}) {
951 $ofs_delta += $o_cnt - $n_cnt;
952 # If this hunk has been edited then subtract
953 # the delta that is due to the edit.
954 if ($_->{OFS_DELTA}) {
955 $ofs_delta -= $_->{OFS_DELTA};
956 }
957 next;
958 }
959 if ($ofs_delta) {
960 $n_ofs += $ofs_delta;
961 $_->{TEXT}->[0] = format_hunk_header($o_ofs, $o_cnt,
962 $n_ofs, $n_cnt);
963 }
964 # If this hunk was edited then adjust the offset delta
965 # to reflect the edit.
966 if ($_->{OFS_DELTA}) {
967 $ofs_delta += $_->{OFS_DELTA};
968 }
969 if (defined $last_o_ctx &&
970 $o_ofs <= $last_o_ctx &&
971 !$_->{DIRTY} &&
972 !$last_was_dirty) {
973 merge_hunk($out[-1], $_);
974 }
975 else {
976 push @out, $_;
977 }
978 $last_o_ctx = find_last_o_ctx($out[-1]);
979 $last_was_dirty = $_->{DIRTY};
980 }
981 return @out;
982}
983sub reassemble_patch {
985 my $head = shift;
986 my @patch;
987 # Include everything in the header except the beginning of the diff.
989 push @patch, (grep { !/^[-+]{3}/ } @$head);
990 # Then include any headers from the hunk lines, which must
992 # come before any actual hunk.
993 while (@_ && $_[0] !~ /^@/) {
994 push @patch, shift;
995 }
996 # Then begin the diff.
998 push @patch, grep { /^[-+]{3}/ } @$head;
999 # And then the actual hunks.
1001 push @patch, @_;
1002 return @patch;
1004}
1005sub color_diff {
1007 return map {
1008 colored((/^@/ ? $fraginfo_color :
1009 /^\+/ ? $diff_new_color :
1010 /^-/ ? $diff_old_color :
1011 $diff_plain_color),
1012 $_);
1013 } @_;
1014}
1015my %edit_hunk_manually_modes = (
1017 stage => N__(
1018"If the patch applies cleanly, the edited hunk will immediately be
1019marked for staging."),
1020 stash => N__(
1021"If the patch applies cleanly, the edited hunk will immediately be
1022marked for stashing."),
1023 reset_head => N__(
1024"If the patch applies cleanly, the edited hunk will immediately be
1025marked for unstaging."),
1026 reset_nothead => N__(
1027"If the patch applies cleanly, the edited hunk will immediately be
1028marked for applying."),
1029 checkout_index => N__(
1030"If the patch applies cleanly, the edited hunk will immediately be
1031marked for discarding."),
1032 checkout_head => N__(
1033"If the patch applies cleanly, the edited hunk will immediately be
1034marked for discarding."),
1035 checkout_nothead => N__(
1036"If the patch applies cleanly, the edited hunk will immediately be
1037marked for applying."),
1038);
1039sub recount_edited_hunk {
1041 local $_;
1042 my ($oldtext, $newtext) = @_;
1043 my ($o_cnt, $n_cnt) = (0, 0);
1044 for (@{$newtext}[1..$#{$newtext}]) {
1045 my $mode = substr($_, 0, 1);
1046 if ($mode eq '-') {
1047 $o_cnt++;
1048 } elsif ($mode eq '+') {
1049 $n_cnt++;
1050 } elsif ($mode eq ' ') {
1051 $o_cnt++;
1052 $n_cnt++;
1053 }
1054 }
1055 my ($o_ofs, undef, $n_ofs, undef) =
1056 parse_hunk_header($newtext->[0]);
1057 $newtext->[0] = format_hunk_header($o_ofs, $o_cnt, $n_ofs, $n_cnt);
1058 my (undef, $orig_o_cnt, undef, $orig_n_cnt) =
1059 parse_hunk_header($oldtext->[0]);
1060 # Return the change in the number of lines inserted by this hunk
1061 return $orig_o_cnt - $orig_n_cnt - $o_cnt + $n_cnt;
1062}
1063sub edit_hunk_manually {
1065 my ($oldtext) = @_;
1066 my $hunkfile = $repo->repo_path . "/addp-hunk-edit.diff";
1068 my $fh;
1069 open $fh, '>', $hunkfile
1070 or die sprintf(__("failed to open hunk edit file for writing: %s"), $!);
1071 print $fh Git::comment_lines __("Manual hunk edit mode -- see bottom for a quick guide.\n");
1072 print $fh @$oldtext;
1073 my $is_reverse = $patch_mode_flavour{IS_REVERSE};
1074 my ($remove_plus, $remove_minus) = $is_reverse ? ('-', '+') : ('+', '-');
1075 my $comment_line_char = Git::get_comment_line_char;
1076 print $fh Git::comment_lines sprintf(__ <<EOF, $remove_minus, $remove_plus, $comment_line_char),
1077---
1078To remove '%s' lines, make them ' ' lines (context).
1079To remove '%s' lines, delete them.
1080Lines starting with %s will be removed.
1081EOF
1082__($edit_hunk_manually_modes{$patch_mode}),
1083# TRANSLATORS: 'it' refers to the patch mentioned in the previous messages.
1084__ <<EOF2 ;
1085If it does not apply cleanly, you will be given an opportunity to
1086edit again. If all lines of the hunk are removed, then the edit is
1087aborted and the hunk is left unchanged.
1088EOF2
1089 close $fh;
1090 chomp(my $editor = run_cmd_pipe(qw(git var GIT_EDITOR)));
1092 system('sh', '-c', $editor.' "$@"', $editor, $hunkfile);
1093 if ($? != 0) {
1095 return undef;
1096 }
1097 open $fh, '<', $hunkfile
1099 or die sprintf(__("failed to open hunk edit file for reading: %s"), $!);
1100 my @newtext = grep { !/^\Q$comment_line_char\E/ } <$fh>;
1101 close $fh;
1102 unlink $hunkfile;
1103 # Abort if nothing remains
1105 if (!grep { /\S/ } @newtext) {
1106 return undef;
1107 }
1108 # Reinsert the first hunk header if the user accidentally deleted it
1110 if ($newtext[0] !~ /^@/) {
1111 unshift @newtext, $oldtext->[0];
1112 }
1113 return \@newtext;
1114}
1115sub diff_applies {
1117 return run_git_apply($patch_mode_flavour{APPLY_CHECK} . ' --check',
1118 map { @{$_->{TEXT}} } @_);
1119}
1120sub _restore_terminal_and_die {
1122 ReadMode 'restore';
1123 print "\n";
1124 exit 1;
1125}
1126sub prompt_single_character {
1128 if ($use_readkey) {
1129 local $SIG{TERM} = \&_restore_terminal_and_die;
1130 local $SIG{INT} = \&_restore_terminal_and_die;
1131 ReadMode 'cbreak';
1132 my $key = ReadKey 0;
1133 ReadMode 'restore';
1134 if ($use_termcap and $key eq "\e") {
1135 while (!defined $term_escapes{$key}) {
1136 my $next = ReadKey 0.5;
1137 last if (!defined $next);
1138 $key .= $next;
1139 }
1140 $key =~ s/\e/^[/;
1141 }
1142 print "$key" if defined $key;
1143 print "\n";
1144 return $key;
1145 } else {
1146 return <STDIN>;
1147 }
1148}
1149sub prompt_yesno {
1151 my ($prompt) = @_;
1152 while (1) {
1153 print colored $prompt_color, $prompt;
1154 my $line = prompt_single_character;
1155 return undef unless defined $line;
1156 return 0 if $line =~ /^n/i;
1157 return 1 if $line =~ /^y/i;
1158 }
1159}
1160sub edit_hunk_loop {
1162 my ($head, $hunks, $ix) = @_;
1163 my $hunk = $hunks->[$ix];
1164 my $text = $hunk->{TEXT};
1165 while (1) {
1167 my $newtext = edit_hunk_manually($text);
1168 if (!defined $newtext) {
1169 return undef;
1170 }
1171 my $newhunk = {
1172 TEXT => $newtext,
1173 TYPE => $hunk->{TYPE},
1174 USE => 1,
1175 DIRTY => 1,
1176 };
1177 $newhunk->{OFS_DELTA} = recount_edited_hunk($text, $newtext);
1178 # If this hunk has already been edited then add the
1179 # offset delta of the previous edit to get the real
1180 # delta from the original unedited hunk.
1181 $hunk->{OFS_DELTA} and
1182 $newhunk->{OFS_DELTA} += $hunk->{OFS_DELTA};
1183 if (diff_applies($head,
1184 @{$hunks}[0..$ix-1],
1185 $newhunk,
1186 @{$hunks}[$ix+1..$#{$hunks}])) {
1187 $newhunk->{DISPLAY} = [color_diff(@{$newtext})];
1188 return $newhunk;
1189 }
1190 else {
1191 prompt_yesno(
1192 # TRANSLATORS: do not translate [y/n]
1193 # The program will only accept that input
1194 # at this point.
1195 # Consider translating (saying "no" discards!) as
1196 # (saying "n" for "no" discards!) if the translation
1197 # of the word "no" does not start with n.
1198 __('Your edited hunk does not apply. Edit again '
1199 . '(saying "no" discards!) [y/n]? ')
1200 ) or return undef;
1201 }
1202 }
1203}
1204my %help_patch_modes = (
1206 stage => N__(
1207"y - stage this hunk
1208n - do not stage this hunk
1209q - quit; do not stage this hunk or any of the remaining ones
1210a - stage this hunk and all later hunks in the file
1211d - do not stage this hunk or any of the later hunks in the file"),
1212 stash => N__(
1213"y - stash this hunk
1214n - do not stash this hunk
1215q - quit; do not stash this hunk or any of the remaining ones
1216a - stash this hunk and all later hunks in the file
1217d - do not stash this hunk or any of the later hunks in the file"),
1218 reset_head => N__(
1219"y - unstage this hunk
1220n - do not unstage this hunk
1221q - quit; do not unstage this hunk or any of the remaining ones
1222a - unstage this hunk and all later hunks in the file
1223d - do not unstage this hunk or any of the later hunks in the file"),
1224 reset_nothead => N__(
1225"y - apply this hunk to index
1226n - do not apply this hunk to index
1227q - quit; do not apply this hunk or any of the remaining ones
1228a - apply this hunk and all later hunks in the file
1229d - do not apply this hunk or any of the later hunks in the file"),
1230 checkout_index => N__(
1231"y - discard this hunk from worktree
1232n - do not discard this hunk from worktree
1233q - quit; do not discard this hunk or any of the remaining ones
1234a - discard this hunk and all later hunks in the file
1235d - do not discard this hunk or any of the later hunks in the file"),
1236 checkout_head => N__(
1237"y - discard this hunk from index and worktree
1238n - do not discard this hunk from index and worktree
1239q - quit; do not discard this hunk or any of the remaining ones
1240a - discard this hunk and all later hunks in the file
1241d - do not discard this hunk or any of the later hunks in the file"),
1242 checkout_nothead => N__(
1243"y - apply this hunk to index and worktree
1244n - do not apply this hunk to index and worktree
1245q - quit; do not apply this hunk or any of the remaining ones
1246a - apply this hunk and all later hunks in the file
1247d - do not apply this hunk or any of the later hunks in the file"),
1248);
1249sub help_patch_cmd {
1251 print colored $help_color, __($help_patch_modes{$patch_mode}), "\n", __ <<EOF ;
1252g - select a hunk to go to
1253/ - search for a hunk matching the given regex
1254j - leave this hunk undecided, see next undecided hunk
1255J - leave this hunk undecided, see next hunk
1256k - leave this hunk undecided, see previous undecided hunk
1257K - leave this hunk undecided, see previous hunk
1258s - split the current hunk into smaller hunks
1259e - manually edit the current hunk
1260? - print help
1261EOF
1262}
1263sub apply_patch {
1265 my $cmd = shift;
1266 my $ret = run_git_apply $cmd, @_;
1267 if (!$ret) {
1268 print STDERR @_;
1269 }
1270 return $ret;
1271}
1272sub apply_patch_for_checkout_commit {
1274 my $reverse = shift;
1275 my $applies_index = run_git_apply 'apply '.$reverse.' --cached --check', @_;
1276 my $applies_worktree = run_git_apply 'apply '.$reverse.' --check', @_;
1277 if ($applies_worktree && $applies_index) {
1279 run_git_apply 'apply '.$reverse.' --cached', @_;
1280 run_git_apply 'apply '.$reverse, @_;
1281 return 1;
1282 } elsif (!$applies_index) {
1283 print colored $error_color, __("The selected hunks do not apply to the index!\n");
1284 if (prompt_yesno __("Apply them to the worktree anyway? ")) {
1285 return run_git_apply 'apply '.$reverse, @_;
1286 } else {
1287 print colored $error_color, __("Nothing was applied.\n");
1288 return 0;
1289 }
1290 } else {
1291 print STDERR @_;
1292 return 0;
1293 }
1294}
1295sub patch_update_cmd {
1297 my @all_mods = list_modified($patch_mode_flavour{FILTER});
1298 error_msg sprintf(__("ignoring unmerged: %s\n"), $_->{VALUE})
1299 for grep { $_->{UNMERGED} } @all_mods;
1300 @all_mods = grep { !$_->{UNMERGED} } @all_mods;
1301 my @mods = grep { !($_->{BINARY}) } @all_mods;
1303 my @them;
1304 if (!@mods) {
1306 if (@all_mods) {
1307 print STDERR __("Only binary files changed.\n");
1308 } else {
1309 print STDERR __("No changes.\n");
1310 }
1311 return 0;
1312 }
1313 if ($patch_mode_only) {
1314 @them = @mods;
1315 }
1316 else {
1317 @them = list_and_choose({ PROMPT => __('Patch update'),
1318 HEADER => $status_head, },
1319 @mods);
1320 }
1321 for (@them) {
1322 return 0 if patch_update_file($_->{VALUE});
1323 }
1324}
1325# Generate a one line summary of a hunk.
1327sub summarize_hunk {
1328 my $rhunk = shift;
1329 my $summary = $rhunk->{TEXT}[0];
1330 # Keep the line numbers, discard extra context.
1332 $summary =~ s/@@(.*?)@@.*/$1 /s;
1333 $summary .= " " x (20 - length $summary);
1334 # Add some user context.
1336 for my $line (@{$rhunk->{TEXT}}) {
1337 if ($line =~ m/^[+-].*\w/) {
1338 $summary .= $line;
1339 last;
1340 }
1341 }
1342 chomp $summary;
1344 return substr($summary, 0, 80) . "\n";
1345}
1346# Print a one-line summary of each hunk in the array ref in
1349# the first argument, starting with the index in the 2nd.
1350sub display_hunks {
1351 my ($hunks, $i) = @_;
1352 my $ctr = 0;
1353 $i ||= 0;
1354 for (; $i < @$hunks && $ctr < 20; $i++, $ctr++) {
1355 my $status = " ";
1356 if (defined $hunks->[$i]{USE}) {
1357 $status = $hunks->[$i]{USE} ? "+" : "-";
1358 }
1359 printf "%s%2d: %s",
1360 $status,
1361 $i + 1,
1362 summarize_hunk($hunks->[$i]);
1363 }
1364 return $i;
1365}
1366my %patch_update_prompt_modes = (
1368 stage => {
1369 mode => N__("Stage mode change [y,n,q,a,d,/%s,?]? "),
1370 deletion => N__("Stage deletion [y,n,q,a,d,/%s,?]? "),
1371 hunk => N__("Stage this hunk [y,n,q,a,d,/%s,?]? "),
1372 },
1373 stash => {
1374 mode => N__("Stash mode change [y,n,q,a,d,/%s,?]? "),
1375 deletion => N__("Stash deletion [y,n,q,a,d,/%s,?]? "),
1376 hunk => N__("Stash this hunk [y,n,q,a,d,/%s,?]? "),
1377 },
1378 reset_head => {
1379 mode => N__("Unstage mode change [y,n,q,a,d,/%s,?]? "),
1380 deletion => N__("Unstage deletion [y,n,q,a,d,/%s,?]? "),
1381 hunk => N__("Unstage this hunk [y,n,q,a,d,/%s,?]? "),
1382 },
1383 reset_nothead => {
1384 mode => N__("Apply mode change to index [y,n,q,a,d,/%s,?]? "),
1385 deletion => N__("Apply deletion to index [y,n,q,a,d,/%s,?]? "),
1386 hunk => N__("Apply this hunk to index [y,n,q,a,d,/%s,?]? "),
1387 },
1388 checkout_index => {
1389 mode => N__("Discard mode change from worktree [y,n,q,a,d,/%s,?]? "),
1390 deletion => N__("Discard deletion from worktree [y,n,q,a,d,/%s,?]? "),
1391 hunk => N__("Discard this hunk from worktree [y,n,q,a,d,/%s,?]? "),
1392 },
1393 checkout_head => {
1394 mode => N__("Discard mode change from index and worktree [y,n,q,a,d,/%s,?]? "),
1395 deletion => N__("Discard deletion from index and worktree [y,n,q,a,d,/%s,?]? "),
1396 hunk => N__("Discard this hunk from index and worktree [y,n,q,a,d,/%s,?]? "),
1397 },
1398 checkout_nothead => {
1399 mode => N__("Apply mode change to index and worktree [y,n,q,a,d,/%s,?]? "),
1400 deletion => N__("Apply deletion to index and worktree [y,n,q,a,d,/%s,?]? "),
1401 hunk => N__("Apply this hunk to index and worktree [y,n,q,a,d,/%s,?]? "),
1402 },
1403);
1404sub patch_update_file {
1406 my $quit = 0;
1407 my ($ix, $num);
1408 my $path = shift;
1409 my ($head, @hunk) = parse_diff($path);
1410 ($head, my $mode, my $deletion) = parse_diff_header($head);
1411 for (@{$head->{DISPLAY}}) {
1412 print;
1413 }
1414 if (@{$mode->{TEXT}}) {
1416 unshift @hunk, $mode;
1417 }
1418 if (@{$deletion->{TEXT}}) {
1419 foreach my $hunk (@hunk) {
1420 push @{$deletion->{TEXT}}, @{$hunk->{TEXT}};
1421 push @{$deletion->{DISPLAY}}, @{$hunk->{DISPLAY}};
1422 }
1423 @hunk = ($deletion);
1424 }
1425 $num = scalar @hunk;
1427 $ix = 0;
1428 while (1) {
1430 my ($prev, $next, $other, $undecided, $i);
1431 $other = '';
1432 if ($num <= $ix) {
1434 $ix = 0;
1435 }
1436 for ($i = 0; $i < $ix; $i++) {
1437 if (!defined $hunk[$i]{USE}) {
1438 $prev = 1;
1439 $other .= ',k';
1440 last;
1441 }
1442 }
1443 if ($ix) {
1444 $other .= ',K';
1445 }
1446 for ($i = $ix + 1; $i < $num; $i++) {
1447 if (!defined $hunk[$i]{USE}) {
1448 $next = 1;
1449 $other .= ',j';
1450 last;
1451 }
1452 }
1453 if ($ix < $num - 1) {
1454 $other .= ',J';
1455 }
1456 if ($num > 1) {
1457 $other .= ',g';
1458 }
1459 for ($i = 0; $i < $num; $i++) {
1460 if (!defined $hunk[$i]{USE}) {
1461 $undecided = 1;
1462 last;
1463 }
1464 }
1465 last if (!$undecided);
1466 if ($hunk[$ix]{TYPE} eq 'hunk' &&
1468 hunk_splittable($hunk[$ix]{TEXT})) {
1469 $other .= ',s';
1470 }
1471 if ($hunk[$ix]{TYPE} eq 'hunk') {
1472 $other .= ',e';
1473 }
1474 for (@{$hunk[$ix]{DISPLAY}}) {
1475 print;
1476 }
1477 print colored $prompt_color,
1478 sprintf(__($patch_update_prompt_modes{$patch_mode}{$hunk[$ix]{TYPE}}), $other);
1479 my $line = prompt_single_character;
1481 last unless defined $line;
1482 if ($line) {
1483 if ($line =~ /^y/i) {
1484 $hunk[$ix]{USE} = 1;
1485 }
1486 elsif ($line =~ /^n/i) {
1487 $hunk[$ix]{USE} = 0;
1488 }
1489 elsif ($line =~ /^a/i) {
1490 while ($ix < $num) {
1491 if (!defined $hunk[$ix]{USE}) {
1492 $hunk[$ix]{USE} = 1;
1493 }
1494 $ix++;
1495 }
1496 next;
1497 }
1498 elsif ($other =~ /g/ && $line =~ /^g(.*)/) {
1499 my $response = $1;
1500 my $no = $ix > 10 ? $ix - 10 : 0;
1501 while ($response eq '') {
1502 $no = display_hunks(\@hunk, $no);
1503 if ($no < $num) {
1504 print __("go to which hunk (<ret> to see more)? ");
1505 } else {
1506 print __("go to which hunk? ");
1507 }
1508 $response = <STDIN>;
1509 if (!defined $response) {
1510 $response = '';
1511 }
1512 chomp $response;
1513 }
1514 if ($response !~ /^\s*\d+\s*$/) {
1515 error_msg sprintf(__("Invalid number: '%s'\n"),
1516 $response);
1517 } elsif (0 < $response && $response <= $num) {
1518 $ix = $response - 1;
1519 } else {
1520 error_msg sprintf(__n("Sorry, only %d hunk available.\n",
1521 "Sorry, only %d hunks available.\n", $num), $num);
1522 }
1523 next;
1524 }
1525 elsif ($line =~ /^d/i) {
1526 while ($ix < $num) {
1527 if (!defined $hunk[$ix]{USE}) {
1528 $hunk[$ix]{USE} = 0;
1529 }
1530 $ix++;
1531 }
1532 next;
1533 }
1534 elsif ($line =~ /^q/i) {
1535 for ($i = 0; $i < $num; $i++) {
1536 if (!defined $hunk[$i]{USE}) {
1537 $hunk[$i]{USE} = 0;
1538 }
1539 }
1540 $quit = 1;
1541 last;
1542 }
1543 elsif ($line =~ m|^/(.*)|) {
1544 my $regex = $1;
1545 if ($1 eq "") {
1546 print colored $prompt_color, __("search for regex? ");
1547 $regex = <STDIN>;
1548 if (defined $regex) {
1549 chomp $regex;
1550 }
1551 }
1552 my $search_string;
1553 eval {
1554 $search_string = qr{$regex}m;
1555 };
1556 if ($@) {
1557 my ($err,$exp) = ($@, $1);
1558 $err =~ s/ at .*git-add--interactive line \d+, <STDIN> line \d+.*$//;
1559 error_msg sprintf(__("Malformed search regexp %s: %s\n"), $exp, $err);
1560 next;
1561 }
1562 my $iy = $ix;
1563 while (1) {
1564 my $text = join ("", @{$hunk[$iy]{TEXT}});
1565 last if ($text =~ $search_string);
1566 $iy++;
1567 $iy = 0 if ($iy >= $num);
1568 if ($ix == $iy) {
1569 error_msg __("No hunk matches the given pattern\n");
1570 last;
1571 }
1572 }
1573 $ix = $iy;
1574 next;
1575 }
1576 elsif ($line =~ /^K/) {
1577 if ($other =~ /K/) {
1578 $ix--;
1579 }
1580 else {
1581 error_msg __("No previous hunk\n");
1582 }
1583 next;
1584 }
1585 elsif ($line =~ /^J/) {
1586 if ($other =~ /J/) {
1587 $ix++;
1588 }
1589 else {
1590 error_msg __("No next hunk\n");
1591 }
1592 next;
1593 }
1594 elsif ($line =~ /^k/) {
1595 if ($other =~ /k/) {
1596 while (1) {
1597 $ix--;
1598 last if (!$ix ||
1599 !defined $hunk[$ix]{USE});
1600 }
1601 }
1602 else {
1603 error_msg __("No previous hunk\n");
1604 }
1605 next;
1606 }
1607 elsif ($line =~ /^j/) {
1608 if ($other !~ /j/) {
1609 error_msg __("No next hunk\n");
1610 next;
1611 }
1612 }
1613 elsif ($other =~ /s/ && $line =~ /^s/) {
1614 my @split = split_hunk($hunk[$ix]{TEXT}, $hunk[$ix]{DISPLAY});
1615 if (1 < @split) {
1616 print colored $header_color, sprintf(
1617 __n("Split into %d hunk.\n",
1618 "Split into %d hunks.\n",
1619 scalar(@split)), scalar(@split));
1620 }
1621 splice (@hunk, $ix, 1, @split);
1622 $num = scalar @hunk;
1623 next;
1624 }
1625 elsif ($other =~ /e/ && $line =~ /^e/) {
1626 my $newhunk = edit_hunk_loop($head, \@hunk, $ix);
1627 if (defined $newhunk) {
1628 splice @hunk, $ix, 1, $newhunk;
1629 }
1630 }
1631 else {
1632 help_patch_cmd($other);
1633 next;
1634 }
1635 # soft increment
1636 while (1) {
1637 $ix++;
1638 last if ($ix >= $num ||
1639 !defined $hunk[$ix]{USE});
1640 }
1641 }
1642 }
1643 @hunk = coalesce_overlapping_hunks(@hunk);
1645 my $n_lofs = 0;
1647 my @result = ();
1648 for (@hunk) {
1649 if ($_->{USE}) {
1650 push @result, @{$_->{TEXT}};
1651 }
1652 }
1653 if (@result) {
1655 my @patch = reassemble_patch($head->{TEXT}, @result);
1656 my $apply_routine = $patch_mode_flavour{APPLY};
1657 &$apply_routine(@patch);
1658 refresh();
1659 }
1660 print "\n";
1662 return $quit;
1663}
1664sub diff_cmd {
1666 my @mods = list_modified('index-only');
1667 @mods = grep { !($_->{BINARY}) } @mods;
1668 return if (!@mods);
1669 my (@them) = list_and_choose({ PROMPT => __('Review diff'),
1670 IMMEDIATE => 1,
1671 HEADER => $status_head, },
1672 @mods);
1673 return if (!@them);
1674 my $reference = (is_initial_commit()) ? get_empty_tree() : 'HEAD';
1675 system(qw(git diff -p --cached), $reference, '--',
1676 map { $_->{VALUE} } @them);
1677}
1678sub quit_cmd {
1680 print __("Bye.\n");
1681 exit(0);
1682}
1683sub help_cmd {
1685# TRANSLATORS: please do not translate the command names
1686# 'status', 'update', 'revert', etc.
1687 print colored $help_color, __ <<'EOF' ;
1688status - show paths with changes
1689update - add working tree state to the staged set of changes
1690revert - revert staged set of changes back to the HEAD version
1691patch - pick hunks and update selectively
1692diff - view diff between HEAD and index
1693add untracked - add contents of untracked files to the staged set of changes
1694EOF
1695}
1696sub process_args {
1698 return unless @ARGV;
1699 my $arg = shift @ARGV;
1700 if ($arg =~ /--patch(?:=(.*))?/) {
1701 if (defined $1) {
1702 if ($1 eq 'reset') {
1703 $patch_mode = 'reset_head';
1704 $patch_mode_revision = 'HEAD';
1705 $arg = shift @ARGV or die __("missing --");
1706 if ($arg ne '--') {
1707 $patch_mode_revision = $arg;
1708 $patch_mode = ($arg eq 'HEAD' ?
1709 'reset_head' : 'reset_nothead');
1710 $arg = shift @ARGV or die __("missing --");
1711 }
1712 } elsif ($1 eq 'checkout') {
1713 $arg = shift @ARGV or die __("missing --");
1714 if ($arg eq '--') {
1715 $patch_mode = 'checkout_index';
1716 } else {
1717 $patch_mode_revision = $arg;
1718 $patch_mode = ($arg eq 'HEAD' ?
1719 'checkout_head' : 'checkout_nothead');
1720 $arg = shift @ARGV or die __("missing --");
1721 }
1722 } elsif ($1 eq 'stage' or $1 eq 'stash') {
1723 $patch_mode = $1;
1724 $arg = shift @ARGV or die __("missing --");
1725 } else {
1726 die sprintf(__("unknown --patch mode: %s"), $1);
1727 }
1728 } else {
1729 $patch_mode = 'stage';
1730 $arg = shift @ARGV or die __("missing --");
1731 }
1732 die sprintf(__("invalid argument %s, expecting --"),
1733 $arg) unless $arg eq "--";
1734 %patch_mode_flavour = %{$patch_modes{$patch_mode}};
1735 $patch_mode_only = 1;
1736 }
1737 elsif ($arg ne "--") {
1738 die sprintf(__("invalid argument %s, expecting --"), $arg);
1739 }
1740}
1741sub main_loop {
1743 my @cmd = ([ 'status', \&status_cmd, ],
1744 [ 'update', \&update_cmd, ],
1745 [ 'revert', \&revert_cmd, ],
1746 [ 'add untracked', \&add_untracked_cmd, ],
1747 [ 'patch', \&patch_update_cmd, ],
1748 [ 'diff', \&diff_cmd, ],
1749 [ 'quit', \&quit_cmd, ],
1750 [ 'help', \&help_cmd, ],
1751 );
1752 while (1) {
1753 my ($it) = list_and_choose({ PROMPT => __('What now'),
1754 SINGLETON => 1,
1755 LIST_FLAT => 4,
1756 HEADER => __('*** Commands ***'),
1757 ON_EOF => \&quit_cmd,
1758 IMMEDIATE => 1 }, @cmd);
1759 if ($it) {
1760 eval {
1761 $it->[1]->();
1762 };
1763 if ($@) {
1764 print "$@";
1765 }
1766 }
1767 }
1768}
1769process_args();
1771refresh();
1772if ($patch_mode_only) {
1773 patch_update_cmd();
1774}
1775else {
1776 status_cmd();
1777 main_loop();
1778}