use strict;
use Git;
-# Prompt colors:
-my ($prompt_color, $header_color, $help_color, $normal_color);
-# Diff colors:
-my ($new_color, $old_color, $fraginfo_color, $metainfo_color, $whitespace_color);
-
-my ($use_color, $diff_use_color);
my $repo = Git->repository();
-$use_color = $repo->get_colorbool('color.interactive');
-
-if ($use_color) {
- # Set interactive colors:
-
- # Grab the 3 main colors in git color string format, with sane
- # (visible) defaults:
- $prompt_color = $repo->get_color("color.interactive.prompt", "bold blue");
- $header_color = $repo->get_color("color.interactive.header", "bold");
- $help_color = $repo->get_color("color.interactive.help", "red bold");
- $normal_color = $repo->get_color("", "reset");
-
- # Do we also set diff colors?
- $diff_use_color = $repo->get_colorbool('color.diff');
- if ($diff_use_color) {
- $new_color = $repo->get_color("color.diff.new", "green");
- $old_color = $repo->get_color("color.diff.old", "red");
- $fraginfo_color = $repo->get_color("color.diff.frag", "cyan");
- $metainfo_color = $repo->get_color("color.diff.meta", "bold");
- $whitespace_color = $repo->get_color("color.diff.whitespace", "normal red");
- }
-}
+my $menu_use_color = $repo->get_colorbool('color.interactive');
+my ($prompt_color, $header_color, $help_color) =
+ $menu_use_color ? (
+ $repo->get_color('color.interactive.prompt', 'bold blue'),
+ $repo->get_color('color.interactive.header', 'bold'),
+ $repo->get_color('color.interactive.help', 'red bold'),
+ ) : ();
+
+my $diff_use_color = $repo->get_colorbool('color.diff');
+my ($fraginfo_color) =
+ $diff_use_color ? (
+ $repo->get_color('color.diff.frag', 'cyan'),
+ ) : ();
+my ($diff_plain_color) =
+ $diff_use_color ? (
+ $repo->get_color('color.diff.plain', ''),
+ ) : ();
+my ($diff_old_color) =
+ $diff_use_color ? (
+ $repo->get_color('color.diff.old', 'red'),
+ ) : ();
+my ($diff_new_color) =
+ $diff_use_color ? (
+ $repo->get_color('color.diff.new', 'green'),
+ ) : ();
+
+my $normal_color = $repo->get_color("", "reset");
sub colored {
my $color = shift;
my $string = join("", @_);
- if ($use_color) {
+ if (defined $color) {
# Put a color code at the beginning of each line, a reset at the end
# color after newlines that are not at the end of the string
$string =~ s/(\n+)(.)/$1$color$2/g;
my $patch_mode;
sub run_cmd_pipe {
- if ($^O eq 'MSWin32') {
+ if ($^O eq 'MSWin32' || $^O eq 'msys') {
my @invalid = grep {m/[":*]/} @_;
die "$^O does not support: @invalid\n" if @invalid;
my @args = map { m/ /o ? "\"$_\"": $_ } @_;
my $status_fmt = '%12s %12s %s';
my $status_head = sprintf($status_fmt, 'staged', 'unstaged', 'path');
+{
+ my $initial;
+ sub is_initial_commit {
+ $initial = system('git rev-parse HEAD -- >/dev/null 2>&1') != 0
+ unless defined $initial;
+ return $initial;
+ }
+}
+
+sub get_empty_tree {
+ return '4b825dc642cb6eb9a060e54bf8d69288fbee4904';
+}
+
# Returns list of hashes, contents of each of which are:
# VALUE: pathname
# BINARY: is a binary path
return if (!@tracked);
}
+ my $reference = is_initial_commit() ? get_empty_tree() : 'HEAD';
for (run_cmd_pipe(qw(git diff-index --cached
- --numstat --summary HEAD --), @tracked)) {
+ --numstat --summary), $reference,
+ '--', @tracked)) {
if (($add, $del, $file) =
/^([-\d]+) ([-\d]+) (.*)/) {
my ($change, $bin);
return "$prefix$remainder";
}
- if (!$use_color) {
+ if (!$menu_use_color) {
return "[$prefix]$remainder";
}
if ($choice =~ s/^-//) {
$choose = 0;
}
- # A range can be specified like 5-7
- if ($choice =~ /^(\d+)-(\d+)$/) {
- ($bottom, $top) = ($1, $2);
+ # A range can be specified like 5-7 or 5-.
+ if ($choice =~ /^(\d+)-(\d*)$/) {
+ ($bottom, $top) = ($1, length($2) ? $2 : 1 + @stuff);
}
elsif ($choice =~ /^\d+$/) {
$bottom = $top = $choice;
HEADER => $status_head, },
list_modified());
if (@update) {
- my @lines = run_cmd_pipe(qw(git ls-tree HEAD --),
- map { $_->{VALUE} } @update);
- my $fh;
- open $fh, '| git update-index --index-info'
- or die;
- for (@lines) {
- print $fh $_;
+ if (is_initial_commit()) {
+ system(qw(git rm --cached),
+ map { $_->{VALUE} } @update);
}
- close($fh);
- for (@update) {
- if ($_->{INDEX_ADDDEL} &&
- $_->{INDEX_ADDDEL} eq 'create') {
- system(qw(git update-index --force-remove --),
- $_->{VALUE});
- print "note: $_->{VALUE} is untracked now.\n";
+ else {
+ my @lines = run_cmd_pipe(qw(git ls-tree HEAD --),
+ map { $_->{VALUE} } @update);
+ my $fh;
+ open $fh, '| git update-index --index-info'
+ or die;
+ for (@lines) {
+ print $fh $_;
+ }
+ close($fh);
+ for (@update) {
+ if ($_->{INDEX_ADDDEL} &&
+ $_->{INDEX_ADDDEL} eq 'create') {
+ system(qw(git update-index --force-remove --),
+ $_->{VALUE});
+ print "note: $_->{VALUE} is untracked now.\n";
+ }
}
}
refresh();
sub parse_diff {
my ($path) = @_;
my @diff = run_cmd_pipe(qw(git diff-files -p --), $path);
- my (@hunk) = { TEXT => [] };
+ my @colored = ();
+ if ($diff_use_color) {
+ @colored = run_cmd_pipe(qw(git diff-files -p --color --), $path);
+ }
+ my (@hunk) = { TEXT => [], DISPLAY => [] };
- for (@diff) {
- if (/^@@ /) {
- push @hunk, { TEXT => [] };
+ for (my $i = 0; $i < @diff; $i++) {
+ if ($diff[$i] =~ /^@@ /) {
+ push @hunk, { TEXT => [], DISPLAY => [] };
}
- push @{$hunk[-1]{TEXT}}, $_;
+ push @{$hunk[-1]{TEXT}}, $diff[$i];
+ push @{$hunk[-1]{DISPLAY}},
+ ($diff_use_color ? $colored[$i] : $diff[$i]);
}
return @hunk;
}
-sub colored_diff_hunk {
- my ($text) = @_;
- # return the text, so that it can be passed to print()
- my @ret;
- for (@$text) {
- if (!$diff_use_color) {
- push @ret, $_;
- next;
- }
+sub parse_diff_header {
+ my $src = shift;
- if (/^\+/) {
- push @ret, colored($new_color, $_);
- } elsif (/^\-/) {
- push @ret, colored($old_color, $_);
- } elsif (/^\@/) {
- push @ret, colored($fraginfo_color, $_);
- } elsif (/^ /) {
- push @ret, colored($normal_color, $_);
- } else {
- push @ret, colored($metainfo_color, $_);
- }
+ my $head = { TEXT => [], DISPLAY => [] };
+ my $mode = { TEXT => [], DISPLAY => [] };
+
+ for (my $i = 0; $i < @{$src->{TEXT}}; $i++) {
+ my $dest = $src->{TEXT}->[$i] =~ /^(old|new) mode (\d+)$/ ?
+ $mode : $head;
+ push @{$dest->{TEXT}}, $src->{TEXT}->[$i];
+ push @{$dest->{DISPLAY}}, $src->{DISPLAY}->[$i];
}
- return @ret;
+ return ($head, $mode);
}
sub hunk_splittable {
}
sub split_hunk {
- my ($text) = @_;
+ my ($text, $display) = @_;
my @split = ();
-
+ if (!defined $display) {
+ $display = $text;
+ }
# If there are context lines in the middle of a hunk,
# it can be split, but we would need to take care of
# overlaps later.
my $i = $hunk_start - 1;
my $this = +{
TEXT => [],
+ DISPLAY => [],
OLD => $o_ofs,
NEW => $n_ofs,
OCNT => 0,
NCNT => 0,
ADDDEL => 0,
POSTCTX => 0,
+ USE => undef,
};
while (++$i < @$text) {
my $line = $text->[$i];
+ my $display = $display->[$i];
if ($line =~ /^ /) {
if ($this->{ADDDEL} &&
!defined $next_hunk_start) {
$next_hunk_start = $i;
}
push @{$this->{TEXT}}, $line;
+ push @{$this->{DISPLAY}}, $display;
$this->{OCNT}++;
$this->{NCNT}++;
if (defined $next_hunk_start) {
redo OUTER;
}
push @{$this->{TEXT}}, $line;
+ push @{$this->{DISPLAY}}, $display;
$this->{ADDDEL}++;
if ($line =~ /^-/) {
$this->{OCNT}++;
" +$n_ofs" .
(($n_cnt != 1) ? ",$n_cnt" : '') .
" @@\n");
+ my $display_head = $head;
unshift @{$hunk->{TEXT}}, $head;
+ if ($diff_use_color) {
+ $display_head = colored($fraginfo_color, $head);
+ }
+ unshift @{$hunk->{DISPLAY}}, $display_head;
}
- return map { $_->{TEXT} } @split;
+ return @split;
}
-sub find_last_o_ctx {
- my ($it) = @_;
- my $text = $it->{TEXT};
- my ($o_ofs, $o_cnt) = parse_hunk_header($text->[0]);
- my $i = @{$text};
- my $last_o_ctx = $o_ofs + $o_cnt;
- while (0 < --$i) {
- my $line = $text->[$i];
- if ($line =~ /^ /) {
- $last_o_ctx--;
- next;
- }
- last;
- }
- return $last_o_ctx;
+
+sub color_diff {
+ return map {
+ colored((/^@/ ? $fraginfo_color :
+ /^\+/ ? $diff_new_color :
+ /^-/ ? $diff_old_color :
+ $diff_plain_color),
+ $_);
+ } @_;
}
-sub merge_hunk {
- my ($prev, $this) = @_;
- my ($o0_ofs, $o0_cnt, $n0_ofs, $n0_cnt) =
- parse_hunk_header($prev->{TEXT}[0]);
- my ($o1_ofs, $o1_cnt, $n1_ofs, $n1_cnt) =
- parse_hunk_header($this->{TEXT}[0]);
-
- my (@line, $i, $ofs, $o_cnt, $n_cnt);
- $ofs = $o0_ofs;
- $o_cnt = $n_cnt = 0;
- for ($i = 1; $i < @{$prev->{TEXT}}; $i++) {
- my $line = $prev->{TEXT}[$i];
- if ($line =~ /^\+/) {
- $n_cnt++;
- push @line, $line;
- next;
- }
+sub edit_hunk_manually {
+ my ($oldtext) = @_;
- last if ($o1_ofs <= $ofs);
+ my $hunkfile = $repo->repo_path . "/addp-hunk-edit.diff";
+ my $fh;
+ open $fh, '>', $hunkfile
+ or die "failed to open hunk edit file for writing: " . $!;
+ print $fh "# Manual hunk edit mode -- see bottom for a quick guide\n";
+ print $fh @$oldtext;
+ print $fh <<EOF;
+# ---
+# To remove '-' lines, make them ' ' lines (context).
+# To remove '+' lines, delete them.
+# Lines starting with # will be removed.
+#
+# If the patch applies cleanly, the edited hunk will immediately be
+# marked for staging. If it does not apply cleanly, you will be given
+# an opportunity to edit again. If all lines of the hunk are removed,
+# then the edit is aborted and the hunk is left unchanged.
+EOF
+ close $fh;
- $o_cnt++;
- $ofs++;
- if ($line =~ /^ /) {
- $n_cnt++;
- }
- push @line, $line;
+ my $editor = $ENV{GIT_EDITOR} || $repo->config("core.editor")
+ || $ENV{VISUAL} || $ENV{EDITOR} || "vi";
+ system('sh', '-c', $editor.' "$@"', $editor, $hunkfile);
+
+ open $fh, '<', $hunkfile
+ or die "failed to open hunk edit file for reading: " . $!;
+ my @newtext = grep { !/^#/ } <$fh>;
+ close $fh;
+ unlink $hunkfile;
+
+ # Abort if nothing remains
+ if (!grep { /\S/ } @newtext) {
+ return undef;
}
- for ($i = 1; $i < @{$this->{TEXT}}; $i++) {
- my $line = $this->{TEXT}[$i];
- if ($line =~ /^\+/) {
- $n_cnt++;
- push @line, $line;
- next;
- }
- $ofs++;
- $o_cnt++;
- if ($line =~ /^ /) {
- $n_cnt++;
- }
- push @line, $line;
+ # Reinsert the first hunk header if the user accidentally deleted it
+ if ($newtext[0] !~ /^@/) {
+ unshift @newtext, $oldtext->[0];
}
- my $head = ("@@ -$o0_ofs" .
- (($o_cnt != 1) ? ",$o_cnt" : '') .
- " +$n0_ofs" .
- (($n_cnt != 1) ? ",$n_cnt" : '') .
- " @@\n");
- @{$prev->{TEXT}} = ($head, @line);
+ return \@newtext;
}
-sub coalesce_overlapping_hunks {
- my (@in) = @_;
- my @out = ();
+sub diff_applies {
+ my $fh;
+ open $fh, '| git apply --recount --cached --check';
+ for my $h (@_) {
+ print $fh @{$h->{TEXT}};
+ }
+ return close $fh;
+}
+
+sub prompt_yesno {
+ my ($prompt) = @_;
+ while (1) {
+ print colored $prompt_color, $prompt;
+ my $line = <STDIN>;
+ return 0 if $line =~ /^n/i;
+ return 1 if $line =~ /^y/i;
+ }
+}
- my ($last_o_ctx);
+sub edit_hunk_loop {
+ my ($head, $hunk, $ix) = @_;
+ my $text = $hunk->[$ix]->{TEXT};
- for (grep { $_->{USE} } @in) {
- my $text = $_->{TEXT};
- my ($o_ofs) = parse_hunk_header($text->[0]);
- if (defined $last_o_ctx &&
- $o_ofs <= $last_o_ctx) {
- merge_hunk($out[-1], $_);
+ while (1) {
+ $text = edit_hunk_manually($text);
+ if (!defined $text) {
+ return undef;
+ }
+ my $newhunk = { TEXT => $text, USE => 1 };
+ if (diff_applies($head,
+ @{$hunk}[0..$ix-1],
+ $newhunk,
+ @{$hunk}[$ix+1..$#{$hunk}])) {
+ $newhunk->{DISPLAY} = [color_diff(@{$text})];
+ return $newhunk;
}
else {
- push @out, $_;
+ prompt_yesno(
+ 'Your edited hunk does not apply. Edit again '
+ . '(saying "no" discards!) [y/n]? '
+ ) or return undef;
}
- $last_o_ctx = find_last_o_ctx($out[-1]);
}
- return @out;
}
sub help_patch_cmd {
k - leave this hunk undecided, see previous undecided hunk
K - leave this hunk undecided, see previous hunk
s - split the current hunk into smaller hunks
+e - manually edit the current hunk
? - print help
EOF
}
my ($ix, $num);
my $path = shift;
my ($head, @hunk) = parse_diff($path);
- print colored_diff_hunk($head->{TEXT});
+ ($head, my $mode) = parse_diff_header($head);
+ for (@{$head->{DISPLAY}}) {
+ print;
+ }
+
+ if (@{$mode->{TEXT}}) {
+ while (1) {
+ print @{$mode->{DISPLAY}};
+ print colored $prompt_color,
+ "Stage mode change [y/n/a/d/?]? ";
+ my $line = <STDIN>;
+ if ($line =~ /^y/i) {
+ $mode->{USE} = 1;
+ last;
+ }
+ elsif ($line =~ /^n/i) {
+ $mode->{USE} = 0;
+ last;
+ }
+ elsif ($line =~ /^a/i) {
+ $_->{USE} = 1 foreach ($mode, @hunk);
+ last;
+ }
+ elsif ($line =~ /^d/i) {
+ $_->{USE} = 0 foreach ($mode, @hunk);
+ last;
+ }
+ else {
+ help_patch_cmd('');
+ next;
+ }
+ }
+ }
+
$num = scalar @hunk;
$ix = 0;
if (hunk_splittable($hunk[$ix]{TEXT})) {
$other .= '/s';
}
- print colored_diff_hunk($hunk[$ix]{TEXT});
+ $other .= '/e';
+ for (@{$hunk[$ix]{DISPLAY}}) {
+ print;
+ }
print colored $prompt_color, "Stage this hunk [y/n/a/d$other/?]? ";
my $line = <STDIN>;
if ($line) {
next;
}
elsif ($other =~ /s/ && $line =~ /^s/) {
- my @split = split_hunk($hunk[$ix]{TEXT});
+ my @split = split_hunk($hunk[$ix]{TEXT}, $hunk[$ix]{DISPLAY});
if (1 < @split) {
print colored $header_color, "Split into ",
scalar(@split), " hunks.\n";
}
- splice(@hunk, $ix, 1,
- map { +{ TEXT => $_, USE => undef } }
- @split);
+ splice (@hunk, $ix, 1, @split);
$num = scalar @hunk;
next;
}
+ elsif ($line =~ /^e/) {
+ my $newhunk = edit_hunk_loop($head, \@hunk, $ix);
+ if (defined $newhunk) {
+ splice @hunk, $ix, 1, $newhunk;
+ }
+ }
else {
help_patch_cmd($other);
next;
}
}
- @hunk = coalesce_overlapping_hunks(@hunk);
-
my $n_lofs = 0;
my @result = ();
+ if ($mode->{USE}) {
+ push @result, @{$mode->{TEXT}};
+ }
for (@hunk) {
- my $text = $_->{TEXT};
- my ($o_ofs, $o_cnt, $n_ofs, $n_cnt) =
- parse_hunk_header($text->[0]);
-
- if (!$_->{USE}) {
- # We would have added ($n_cnt - $o_cnt) lines
- # to the postimage if we were to use this hunk,
- # but we didn't. So the line number that the next
- # hunk starts at would be shifted by that much.
- $n_lofs -= ($n_cnt - $o_cnt);
- next;
- }
- else {
- if ($n_lofs) {
- $n_ofs += $n_lofs;
- $text->[0] = ("@@ -$o_ofs" .
- (($o_cnt != 1)
- ? ",$o_cnt" : '') .
- " +$n_ofs" .
- (($n_cnt != 1)
- ? ",$n_cnt" : '') .
- " @@\n");
- }
- for (@$text) {
- push @result, $_;
- }
+ if ($_->{USE}) {
+ push @result, @{$_->{TEXT}};
}
}
if (@result) {
my $fh;
- open $fh, '| git apply --cached';
+ open $fh, '| git apply --cached --recount';
for (@{$head->{TEXT}}, @result) {
print $fh $_;
}
HEADER => $status_head, },
@mods);
return if (!@them);
- system(qw(git diff -p --cached HEAD --), map { $_->{VALUE} } @them);
+ my $reference = is_initial_commit() ? get_empty_tree() : 'HEAD';
+ system(qw(git diff -p --cached), $reference, '--',
+ map { $_->{VALUE} } @them);
}
sub quit_cmd {