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#!/usr/bin/env perl
# Copyright (C) 2021 June McEnroe <june@causal.agency>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
use lib (split(/:/, $ENV{GITPERLLIB} || '/usr/local/share/perl5'));
use strict;
use warnings;
use Getopt::Long qw(:config pass_through);
use Git;
my $repo = Git->repository();
my ($all, $minGroup, $minRepeat, $noRepeat) = (0, 2, 30, 0);
my $commentStart = $repo->config('comment.start') // "/*";
my $commentLead = $repo->config('comment.lead') // " *";
my $commentEnd = $repo->config('comment.end') // " */";
my $pretty = $repo->config('comment.pretty') // 'format:%h %s%n%n%-b';
GetOptions(
'all' => \$all,
'comment-start=s' => \$commentStart,
'comment-lead=s' => \$commentLead,
'comment-end:s' => \$commentEnd,
'min-group=i' => \$minGroup,
'min-repeat=i' => \$minRepeat,
'no-repeat' => \$noRepeat,
'pretty=s' => \$pretty,
) or die;
sub printComment {
my ($indent, $summary, @body) = @_;
print "$indent$commentStart $summary";
if (@body) {
print "\n";
foreach (@body) {
print "$indent$commentLead";
print " $_" if $_;
print "\n";
}
print "$indent$commentEnd\n" if $commentEnd;
} else {
print "$commentEnd\n";
}
}
my ($pipe, $ctx) = $repo->command_output_pipe('blame', '--porcelain', @ARGV);
my ($commit, $nr, $group, $printed, %message, %nrs);
while (<$pipe>) {
chomp;
if (/^([[:xdigit:]]+) \d+ (\d+) (\d+)/) {
($commit, $nr, $group, $printed) = ($1, $2, $3, 0);
next if $message{$commit};
if ($commit =~ /^0+$/) {
$message{$commit} = ['Not committed yet'];
next;
}
my @message = $repo->command(
'show', '--no-patch', "--pretty=$pretty", $commit
);
$message{$commit} = \@message;
} elsif (/^\t(\s*)(.*)/) {
my ($indent, $line) = ($1, $2);
unless ($printed || $line =~ /^[})]?;?$/) {
$printed = 1;
if (
$group >= $minGroup &&
!($noRepeat && $nrs{$commit}) &&
!($nrs{$commit} && $nr < $nrs{$commit} + $minRepeat) &&
($all || @{$message{$commit}} > 1)
) {
$nrs{$commit} = $nr;
printComment($indent, @{$message{$commit}});
}
}
print "$indent$line\n";
}
}
$repo->command_close_pipe($pipe, $ctx);
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