hxtools/sdevel/git-blame-stats

43 lines
1.1 KiB
Perl
Executable File

#!/usr/bin/perl
# SPDX-License-Identifier: MIT
#
# git-blame based authoring statistics
# written by Jan Engelhardt, 2009
use Getopt::Long;
use POSIX qw(ceil);
use strict;
Getopt::Long::Configure(qw(bundling));
my %authors;
my $total;
my $files;
my $rev = shift(@ARGV) || "HEAD";
my $zargs = join(" ", @ARGV);
foreach my $file (`git ls-tree --name-only -r $rev $zargs`) {
chomp($file);
print STDERR "Processing $file\n";
foreach my $line (`git blame -M -w $rev -- "$file"`) {
chomp($line);
if (substr($line, 0, 1) eq "^") {
++$authors{"*initial checkin"};
} else {
$line =~ s[^.*?\((.*?)\s*\d{4}-\d{2}-\d{2}.*][$1];
++$authors{$line};
}
++$total;
}
}
print "Total lines: $total\n";
my $i = 0;
my $author_ind = ceil(log(scalar(keys %authors)) / log(10));
my $lines_ind = ceil(log($total) / log(10));
foreach my $author (sort { $authors{$b} <=> $authors{$a} } keys %authors) {
printf "%${author_ind}s %${lines_ind}u %5.2f%% %s\n",
sprintf("#%u", ++$i),
$authors{$author},
$authors{$author} * 100 / $total,
$author;
}