Attached is the 'git-shortlog' script I whipped up, to mimic the shortlog script that was used back in the BitKeeper days.
shortlog reads a changelog in the 'git-whatchanged' format, such as
git-whatchanged | git-shortlog or git-shortlog changes.txt
and outputs the changes sorted by author:
author1: cset 1-line desc cset 1-line desc ... author2: cset 1-line desc ... ...
Since git distinguishes 'author' from 'committer', I ran
git-whatchanged | git-shortlog > changes.txt
to look at the kernel authors throughout the entire history [of which is in git].
It's fun to browse, since this is the first time we've been able to get a better picture who is actually writing the patches, versus committing them. See changes.txt.bz2, attached.
Jeff
#!/usr/bin/perl -w
use strict;
my ($author, $desc, %map); my $pstate = 1;
while (<>) {
# get author
if ($pstate == 1) {
next unless /^Author: (.*)$/;
$author = $1;
$pstate++;
} # skip to blank line
elsif ($pstate == 2) {
next unless /^\s*$/;
$pstate++;
} # skip to non-blank line
elsif ($pstate == 3) {
next if /^\s*$/;
chomp;
$desc = $_;&shortlog_entry($author, $desc);
$pstate = 1; }
else {
die "invalid parse state $pstate";
}
}&shortlog_output; exit(0);
sub shortlog_entry($$) {
my ($tmp_author, $tmp_desc) = @_;$tmp_desc =~ s#/pub/scm/linux/kernel/git/#/.../#g; $tmp_desc =~ s#\[PATCH\] ##g; $tmp_desc =~ s#^\s+##g;
if (exists $map{$tmp_author}) {
# grab ref
my $obj = $map{$tmp_author}; # add desc to array
push(@$obj, $tmp_desc);
} else {
# create new array, containing 1 item
my @arr = ($tmp_desc); # store ref to array
$map{$tmp_author} = \@arr;
}
}sub shortlog_output {
my ($obj); foreach $author (sort keys %map) {
print "$author:\n"; $obj = $map{$author};
foreach $desc (@$obj) {
print " $desc\n";
}print "\n"; } }
