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index 709caa9055e139731bedd8b4e0b2659df6017bfa..ca60356d0082123cd1e9572572528d8265be43a3 100755 (executable)
$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");
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 ? "\"$_\"": $_ } @_;
return @split;
}
-sub find_last_o_ctx {
- my ($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];
+ }
+ return \@newtext;
+}
+
+sub diff_applies {
+ my $fh;
+ open $fh, '| git apply --recount --cached --check';
+ for my $h (@_) {
+ print $fh @{$h->{TEXT}};
}
- my $head = ("@@ -$o0_ofs" .
- (($o_cnt != 1) ? ",$o_cnt" : '') .
- " +$n0_ofs" .
- (($n_cnt != 1) ? ",$n_cnt" : '') .
- " @@\n");
- @{$prev->{TEXT}} = ($head, @line);
+ return close $fh;
}
-sub coalesce_overlapping_hunks {
- my (@in) = @_;
- my @out = ();
+sub prompt_yesno {
+ my ($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 {
n - do not stage this hunk
a - stage this and all the remaining hunks in the file
d - do not stage this hunk nor any of the remaining hunks in the file
+g - select a hunk to go to
j - leave this hunk undecided, see next undecided hunk
J - leave this hunk undecided, see next hunk
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
}
sub patch_update_cmd {
- my @mods = grep { !($_->{BINARY}) } list_modified('file-only');
+ my @all_mods = list_modified('file-only');
+ my @mods = grep { !($_->{BINARY}) } @all_mods;
my @them;
if (!@mods) {
- print STDERR "No changes.\n";
+ if (@all_mods) {
+ print STDERR "Only binary files changed.\n";
+ } else {
+ print STDERR "No changes.\n";
+ }
return 0;
}
if ($patch_mode) {
}
}
+# Generate a one line summary of a hunk.
+sub summarize_hunk {
+ my $rhunk = shift;
+ my $summary = $rhunk->{TEXT}[0];
+
+ # Keep the line numbers, discard extra context.
+ $summary =~ s/@@(.*?)@@.*/$1 /s;
+ $summary .= " " x (20 - length $summary);
+
+ # Add some user context.
+ for my $line (@{$rhunk->{TEXT}}) {
+ if ($line =~ m/^[+-].*\w/) {
+ $summary .= $line;
+ last;
+ }
+ }
+
+ chomp $summary;
+ return substr($summary, 0, 80) . "\n";
+}
+
+
+# Print a one-line summary of each hunk in the array ref in
+# the first argument, starting wih the index in the 2nd.
+sub display_hunks {
+ my ($hunks, $i) = @_;
+ my $ctr = 0;
+ $i ||= 0;
+ for (; $i < @$hunks && $ctr < 20; $i++, $ctr++) {
+ my $status = " ";
+ if (defined $hunks->[$i]{USE}) {
+ $status = $hunks->[$i]{USE} ? "+" : "-";
+ }
+ printf "%s%2d: %s",
+ $status,
+ $i + 1,
+ summarize_hunk($hunks->[$i]);
+ }
+ return $i;
+}
+
sub patch_update_file {
my ($ix, $num);
my $path = shift;
if ($ix < $num - 1) {
$other .= '/J';
}
+ if ($num > 1) {
+ $other .= '/g';
+ }
for ($i = 0; $i < $num; $i++) {
if (!defined $hunk[$i]{USE}) {
$undecided = 1;
if (hunk_splittable($hunk[$ix]{TEXT})) {
$other .= '/s';
}
+ $other .= '/e';
for (@{$hunk[$ix]{DISPLAY}}) {
print;
}
}
next;
}
+ elsif ($other =~ /g/ && $line =~ /^g(.*)/) {
+ my $response = $1;
+ my $no = $ix > 10 ? $ix - 10 : 0;
+ while ($response eq '') {
+ my $extra = "";
+ $no = display_hunks(\@hunk, $no);
+ if ($no < $num) {
+ $extra = " (<ret> to see more)";
+ }
+ print "go to which hunk$extra? ";
+ $response = <STDIN>;
+ chomp $response;
+ }
+ if ($response !~ /^\s*\d+\s*$/) {
+ print STDERR "Invalid number: '$response'\n";
+ } elsif (0 < $response && $response <= $num) {
+ $ix = $response - 1;
+ } else {
+ print STDERR "Sorry, only $num hunks available.\n";
+ }
+ next;
+ }
elsif ($line =~ /^d/i) {
while ($ix < $num) {
if (!defined $hunk[$ix]{USE}) {
$num = scalar @hunk;
next;
}
+ elsif ($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 $_;
}