ceph/src/c-ares/git2changes.pl

   1 #!/usr/bin/perl
   2
   3 # git log --pretty=fuller --no-color --date=short --decorate=full
   4
   5 my @mname = ('Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun',
   6              'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec' );
   7
   8 sub nicedate {
   9     my ($date)=$_;
  10
  11     if($date =~ /(\d\d\d\d)-(\d\d)-(\d\d)/) {
  12         return sprintf("%d %s %4d", $3, $mname[$2-1], $1);
  13     }
  14     return $date;
  15 }
  16
  17 print
  18 '   Changelog for the c-ares project. Generated with git2changes.pl
  19 ';
  20
  21 my $line;
  22 my $tag;
  23 while(<STDIN>) {
  24     my $l = $_;
  25
  26     if($l =~/^commit ([[:xdigit:]]*) ?(.*)/) {
  27         $co = $1;
  28         my $ref = $2;
  29         if ($ref =~ /refs\/tags\/c[-]*ares-([0-9._]*)/) {
  30             $tag = $1;
  31             $tag =~ s/_/./g;
  32         } else {
  33             $tag = '';
  34         }
  35     }
  36     elsif($l =~ /^Author: *(.*) +</) {
  37         $a = $1;
  38     }
  39     elsif($l =~ /^Commit: *(.*) +</) {
  40         $c = $1;
  41     }
  42     elsif($l =~ /^CommitDate: (.*)/) {
  43         $date = nicedate($1);
  44     }
  45     elsif($l =~ /^(    )(.*)/) {
  46         my $extra;
  47         if ($tag) {
  48             # Version entries have a special format
  49             print "\nVersion " . $tag." ($date)\n";
  50             $oldc = "";
  51             $tag = "";
  52         }
  53         if($a ne $c) {
  54             $extra=sprintf("\n- [%s brought this change]\n\n  ", $a);
  55         }
  56         else {
  57             $extra="\n- ";
  58         }
  59         if($co ne $oldco) {
  60             if($c ne $oldc) {
  61                 print "\n$c ($date)$extra";
  62             }
  63             else {
  64                 print "$extra";
  65             }
  66             $line =0;
  67         }
  68
  69         $oldco = $co;
  70         $oldc = $c;
  71         $olddate = $date;
  72         if($line++) {
  73             print "  ";
  74         }
  75         print $2."\n";
  76     }
  77 }