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#!/usr/bin/perl -w
use strict;
use Getopt::Std;
use File::Basename qw(basename dirname);
our ($opt_h, $opt_n, $opt_s);
getopts('hns');
$opt_h && usage();
sub usage {
print STDERR "Usage: ${\basename $0} [-h] [-n] [-s] < <log_data>\n";
exit(1);
}
my (%mailmap);
my (%email);
my (%map);
my $pstate = 1;
my $n_records = 0;
my $n_output = 0;
sub shortlog_entry($$) {
my ($name, $desc) = @_;
my $key = $name;
$desc =~ s#/pub/scm/linux/kernel/git/#/.../#g;
$desc =~ s#\[PATCH\] ##g;
# store description in array, in email->{desc list} map
if (exists $map{$key}) {
# grab ref
my $obj = $map{$key};
# add desc to array
push(@$obj, $desc);
} else {
# create new array, containing 1 item
my @arr = ($desc);
# store ref to array
$map{$key} = \@arr;
}
}
# sort comparison function
sub by_name($$) {
my ($a, $b) = @_;
uc($a) cmp uc($b);
}
sub by_nbentries($$) {
my ($a, $b) = @_;
my $a_entries = $map{$a};
my $b_entries = $map{$b};
@$b_entries - @$a_entries || by_name $a, $b;
}
my $sort_method = $opt_n ? \&by_nbentries : \&by_name;
sub summary_output {
my ($obj, $num, $key);
foreach $key (sort $sort_method keys %map) {
$obj = $map{$key};
$num = @$obj;
printf "%s: %u\n", $key, $num;
$n_output += $num;
}
}
sub shortlog_output {
my ($obj, $num, $key, $desc);
foreach $key (sort $sort_method keys %map) {
$obj = $map{$key};
$num = @$obj;
# output author
printf "%s (%u):\n", $key, $num;
# output author's 1-line summaries
foreach $desc (reverse @$obj) {
print " $desc\n";
$n_output++;
}
# blank line separating author from next author
print "\n";
}
}
sub changelog_input {
my ($author, $desc);
while (<>) {
# get author and email
if ($pstate == 1) {
my ($email);
next unless /^[Aa]uthor:?\s*(.*?)\s*<(.*)>/;
$n_records++;
$author = $1;
$email = $2;
$desc = undef;
# cset author fixups
if (exists $mailmap{$email}) {
$author = $mailmap{$email};
} elsif (exists $mailmap{$author}) {
$author = $mailmap{$author};
} elsif (!$author) {
$author = $email;
}
$email{$author}{$email}++;
$pstate++;
}
# skip to blank line
elsif ($pstate == 2) {
next unless /^\s*$/;
$pstate++;
}
# skip to non-blank line
elsif ($pstate == 3) {
next unless /^\s*?(.*)/;
# skip lines that are obviously not
# a 1-line cset description
next if /^\s*From: /;
chomp;
$desc = $1;
&shortlog_entry($author, $desc);
$pstate = 1;
}
else {
die "invalid parse state $pstate";
}
}
}
sub read_mailmap {
my ($fh, $mailmap) = @_;
while (<$fh>) {
chomp;
if (/^([^#].*?)\s*<(.*)>/) {
$mailmap->{$2} = $1;
}
}
}
sub setup_mailmap {
read_mailmap(\*DATA, \%mailmap);
if (-f '.mailmap') {
my $fh = undef;
open $fh, '<', '.mailmap';
read_mailmap($fh, \%mailmap);
close $fh;
}
}
sub finalize {
#print "\n$n_records records parsed.\n";
if ($n_records != $n_output) {
die "parse error: input records != output records\n";
}
if (0) {
for my $author (sort keys %email) {
my $e = $email{$author};
for my $email (sort keys %$e) {
print STDERR "$author <$email>\n";
}
}
}
}
&setup_mailmap;
&changelog_input;
$opt_s ? &summary_output : &shortlog_output;
&finalize;
exit(0);
__DATA__
#
# Even with git, we don't always have name translations.
# So have an email->real name table to translate the
# (hopefully few) missing names
#
Adrian Bunk <bunk@stusta.de>
Andreas Herrmann <aherrman@de.ibm.com>
Andrew Morton <akpm@osdl.org>
Andrew Vasquez <andrew.vasquez@qlogic.com>
Christoph Hellwig <hch@lst.de>
Corey Minyard <minyard@acm.org>
David Woodhouse <dwmw2@shinybook.infradead.org>
Domen Puncer <domen@coderock.org>
Douglas Gilbert <dougg@torque.net>
Ed L Cashin <ecashin@coraid.com>
Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Felix Moeller <felix@derklecks.de>
Frank Zago <fzago@systemfabricworks.com>
Greg Kroah-Hartman <gregkh@suse.de>
James Bottomley <jejb@mulgrave.(none)>
James Bottomley <jejb@titanic.il.steeleye.com>
Jeff Garzik <jgarzik@pretzel.yyz.us>
Jens Axboe <axboe@suse.de>
Kay Sievers <kay.sievers@vrfy.org>
Mitesh shah <mshah@teja.com>
Morten Welinder <terra@gnome.org>
Morten Welinder <welinder@anemone.rentec.com>
Morten Welinder <welinder@darter.rentec.com>
Morten Welinder <welinder@troll.com>
Nguyen Anh Quynh <aquynh@gmail.com>
Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Peter A Jonsson <pj@ludd.ltu.se>
Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
Rudolf Marek <R.Marek@sh.cvut.cz>
Rui Saraiva <rmps@joel.ist.utl.pt>
Sachin P Sant <ssant@in.ibm.com>
Santtu Hyrkk,Av(B <santtu.hyrkko@gmail.com>
Simon Kelley <simon@thekelleys.org.uk>
Tejun Heo <htejun@gmail.com>
Tony Luck <tony.luck@intel.com>
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