Instantly share code, notes, and snippets.

Embed
What would you like to do?
git-blame by PR #
#! /usr/bin/perl
use strict;
use warnings;
my $git_blame_pid = open(my $fh, "-|", "git", "blame", "--first-parent", @ARGV)
or die "failed to invoke git-blame:$!";
my %cached; # commit-id -> substitution string
while (my $line = <$fh>) {
my ($commit, $src) = split / .*?\) /, $line, 2;
$cached{$commit} = lookup($commit)
unless $cached{$commit};
print $cached{$commit}, ' ', $src;
}
while (waitpid($git_blame_pid, 0) != $git_blame_pid) {}
exit $?;
sub lookup {
my $commit = shift;
my $message = `git show --oneline $commit`;
if ($message =~ /Merge\s+(?:pull\s+request|pr)\s+\#?(\d+)\s/i) {
return sprintf '%-9s', "PR #$1";
}
return $commit;
}
@kazuho

This comment has been minimized.

Show comment
Hide comment
Owner

kazuho commented Dec 28, 2017

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment