git-shortlog.perl

   1 #!/usr/bin/perl -w
   2
   3 use strict;
   4
   5 my (%mailmap);
   6 my (%email);
   7 my (%map);
   8 my $pstate = 1;
   9 my $n_records = 0;
  10 my $n_output = 0;
  11
  12 sub shortlog_entry($$) {
  13         my ($name, $desc) = @_;
  14         my $key = $name;
  15
  16         $desc =~ s#/pub/scm/linux/kernel/git/#/.../#g;
  17         $desc =~ s#\[PATCH\] ##g;
  18
  19         # store description in array, in email->{desc list} map
  20         if (exists $map{$key}) {
  21                 # grab ref
  22                 my $obj = $map{$key};
  23
  24                 # add desc to array
  25                 push(@$obj, $desc);
  26         } else {
  27                 # create new array, containing 1 item
  28                 my @arr = ($desc);
  29
  30                 # store ref to array
  31                 $map{$key} = \@arr;
  32         }
  33 }
  34
  35 # sort comparison function
  36 sub by_name($$) {
  37         my ($a, $b) = @_;
  38
  39         uc($a) cmp uc($b);
  40 }
  41
  42 sub shortlog_output {
  43         my ($obj, $key, $desc);
  44
  45         foreach $key (sort by_name keys %map) {
  46                 # output author
  47                 printf "%s:\n", $key;
  48
  49                 # output author's 1-line summaries
  50                 $obj = $map{$key};
  51                 foreach $desc (reverse @$obj) {
  52                         print "  $desc\n";
  53                         $n_output++;
  54                 }
  55
  56                 # blank line separating author from next author
  57                 print "\n";
  58         }
  59 }
  60
  61 sub changelog_input {
  62         my ($author, $desc);
  63
  64         while (<>) {
  65                 # get author and email
  66                 if ($pstate == 1) {
  67                         my ($email);
  68
  69                         next unless /^[Aa]uthor:?\s*(.*?)\s*<(.*)>/;
  70
  71                         $n_records++;
  72
  73                         $author = $1;
  74                         $email = $2;
  75                         $desc = undef;
  76
  77                         # cset author fixups
  78                         if (exists $mailmap{$email}) {
  79                                 $author = $mailmap{$email};
  80                         } elsif (exists $mailmap{$author}) {
  81                                 $author = $mailmap{$author};
  82                         } elsif (!$author) {
  83                                 $author = $email;
  84                         }
  85                         $email{$author}{$email}++;
  86                         $pstate++;
  87                 }
  88
  89                 # skip to blank line
  90                 elsif ($pstate == 2) {
  91                         next unless /^\s*$/;
  92                         $pstate++;
  93                 }
  94
  95                 # skip to non-blank line
  96                 elsif ($pstate == 3) {
  97                         next unless /^\s*?(.*)/;
  98
  99                         # skip lines that are obviously not
 100                         # a 1-line cset description
 101                         next if /^\s*From: /;
 102
 103                         chomp;
 104                         $desc = $1;
 105
 106                         &shortlog_entry($author, $desc);
 107
 108                         $pstate = 1;
 109                 }
 110
 111                 else {
 112                         die "invalid parse state $pstate";
 113                 }
 114         }
 115 }
 116
 117 sub read_mailmap {
 118         my ($fh, $mailmap) = @_;
 119         while (<$fh>) {
 120                 chomp;
 121                 if (/^([^#].*?)\s*<(.*)>/) {
 122                         $mailmap->{$2} = $1;
 123                 }
 124         }
 125 }
 126
 127 sub setup_mailmap {
 128         read_mailmap(\*DATA, \%mailmap);
 129         if (-f '.mailmap') {
 130                 my $fh = undef;
 131                 open $fh, '<', '.mailmap';
 132                 read_mailmap($fh, \%mailmap);
 133                 close $fh;
 134         }
 135 }
 136
 137 sub finalize {
 138         #print "\n$n_records records parsed.\n";
 139
 140         if ($n_records != $n_output) {
 141                 die "parse error: input records != output records\n";
 142         }
 143         if (0) {
 144                 for my $author (sort keys %email) {
 145                         my $e = $email{$author};
 146                         for my $email (sort keys %$e) {
 147                                 print STDERR "$author <$email>\n";
 148                         }
 149                 }
 150         }
 151 }
 152
 153 &setup_mailmap;
 154 &changelog_input;
 155 &shortlog_output;
 156 &finalize;
 157 exit(0);
 158
 159
 160 __DATA__
 161 #
 162 # Even with git, we don't always have name translations.
 163 # So have an email->real name table to translate the
 164 # (hopefully few) missing names
 165 #
 166 Adrian Bunk <bunk@stusta.de>
 167 Andreas Herrmann <aherrman@de.ibm.com>
 168 Andrew Morton <akpm@osdl.org>
 169 Andrew Vasquez <andrew.vasquez@qlogic.com>
 170 Christoph Hellwig <hch@lst.de>
 171 Corey Minyard <minyard@acm.org>
 172 David Woodhouse <dwmw2@shinybook.infradead.org>
 173 Domen Puncer <domen@coderock.org>
 174 Douglas Gilbert <dougg@torque.net>
 175 Ed L Cashin <ecashin@coraid.com>
 176 Evgeniy Polyakov <johnpol@2ka.mipt.ru>
 177 Felix Moeller <felix@derklecks.de>
 178 Frank Zago <fzago@systemfabricworks.com>
 179 Greg Kroah-Hartman <gregkh@suse.de>
 180 James Bottomley <jejb@mulgrave.(none)>
 181 James Bottomley <jejb@titanic.il.steeleye.com>
 182 Jeff Garzik <jgarzik@pretzel.yyz.us>
 183 Jens Axboe <axboe@suse.de>
 184 Kay Sievers <kay.sievers@vrfy.org>
 185 Mitesh shah <mshah@teja.com>
 186 Morten Welinder <terra@gnome.org>
 187 Morten Welinder <welinder@anemone.rentec.com>
 188 Morten Welinder <welinder@darter.rentec.com>
 189 Morten Welinder <welinder@troll.com>
 190 Nguyen Anh Quynh <aquynh@gmail.com>
 191 Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
 192 Peter A Jonsson <pj@ludd.ltu.se>
 193 Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
 194 Rudolf Marek <R.Marek@sh.cvut.cz>
 195 Rui Saraiva <rmps@joel.ist.utl.pt>
 196 Sachin P Sant <ssant@in.ibm.com>
 197 Santtu Hyrkk\e,Av\e(B <santtu.hyrkko@gmail.com>
 198 Simon Kelley <simon@thekelleys.org.uk>
 199 Tejun Heo <htejun@gmail.com>
 200 Tony Luck <tony.luck@intel.com>