diff options
| -rwxr-xr-x | git-fmt-merge-msg.perl | 79 |
1 files changed, 77 insertions, 2 deletions
diff --git a/git-fmt-merge-msg.perl b/git-fmt-merge-msg.perl index 778388e25..0467a387e 100755 --- a/git-fmt-merge-msg.perl +++ b/git-fmt-merge-msg.perl @@ -27,10 +27,47 @@ sub andjoin { return ($m); } +sub repoconfig { + my $fh; + my $val; + eval { + open $fh, '-|', 'git-repo-config', '--get', 'merge.summary' + or die "$!"; + ($val) = <$fh>; + close $fh; + }; + return $val; +} + +sub mergebase { + my ($other) = @_; + my $fh; + open $fh, '-|', 'git-merge-base', '--all', 'HEAD', $other or die "$!"; + my (@mb) = map { chomp; $_ } <$fh>; + close $fh or die "$!"; + return @mb; +} + +sub shortlog { + my ($tip, $limit, @base) = @_; + my ($fh, @result); + open $fh, '-|', ('git-log', "--max-count=$limit", '--topo-order', + '--pretty=oneline', $tip, map { "^$_" } @base) + or die "$!"; + while (<$fh>) { + s/^[0-9a-f]{40}\s+//; + push @result, $_; + } + close $fh or die "$!"; + return @result; +} + +my @origin = (); while (<>) { - my ($bname, $tname, $gname, $src); + my ($bname, $tname, $gname, $src, $sha1, $origin); chomp; - s/^[0-9a-f]* //; + s/^([0-9a-f]*) //; + $sha1 = $1; next if (/^not-for-merge/); s/^ //; if (s/ of (.*)$//) { @@ -52,19 +89,30 @@ while (<>) { }; } if (/^branch (.*)$/) { + $origin = $1; push @{$src{$src}{BRANCH}}, $1; $src{$src}{HEAD_STATUS} |= 2; } elsif (/^tag (.*)$/) { + $origin = $_; push @{$src{$src}{TAG}}, $1; $src{$src}{HEAD_STATUS} |= 2; } elsif (/^HEAD$/) { + $origin = $src; $src{$src}{HEAD_STATUS} |= 1; } else { push @{$src{$src}{GENERIC}}, $_; $src{$src}{HEAD_STATUS} |= 2; + $origin = $src; + } + if ($src eq '.' || $src eq $origin) { + $origin =~ s/^'(.*)'$/$1/; + push @origin, [$sha1, "$origin"]; + } + else { + push @origin, [$sha1, "$origin of $src"]; } } @@ -93,3 +141,30 @@ for my $src (@src) { push @msg, $this; } print "Merge ", join("; ", @msg), "\n"; + +if (!repoconfig) { + exit(0); +} + +# We limit the merge message to the latst 20 or so per each branch. +my $limit = 20; + +for (@origin) { + my ($sha1, $name) = @$_; + my @mb = mergebase($sha1); + my @log = shortlog($sha1, $limit + 1, @mb); + if ($limit + 1 <= @log) { + print "\n* $name: (" . scalar(@log) . " commits)\n"; + } + else { + print "\n* $name:\n"; + } + my $cnt = 0; + for my $log (@log) { + if ($limit < ++$cnt) { + print " ...\n"; + last; + } + print " $log"; + } +} |