mdw@git.distorted.org.uk Git - profile/blob - bin/git-copyright-dates

   1 #! /usr/bin/perl
   2
   3 my (%Y, %M);
   4 open my $fh, "-|", "git", "log",
   5   "--date=format:%Y", "--pretty=format:%ad %aN", @ARGV
   6   or die "git log: $!";
   7 while (<$fh>) {
   8   /(\d+)\s+(.*)$/ or die "wtf?  $_";
   9   my ($y, $who) = ($1, $2);
  10   push @{$Y{$who}}, $y;
  11   if (!exists $M{$who} || $y < $M{$who}) { $M{$who} = $y; }
  12 }
  13 close $fh or die "git log (rc = $?)";
  14
  15 my ($S, $O, $L);
  16 sub out () {
  17   defined $L or return;
  18   defined $S and $S .= ", ";
  19   if ($O < $L - 1) { $S .= "$O--$L" }
  20   elsif ($O != $L) { $S .= "$O, $L" }
  21   else { $S .= "$L" }
  22 }
  23
  24 for my $who (sort { $M{$a} <=> $M{$b} } keys %Y) {
  25   my @y = sort { $a <=> $b } @{$Y{$who}};
  26   undef $S; undef $L;
  27   for my $y (@y) {
  28     if (!defined $L) { $O = $L = $y; }
  29     elsif ($y == $L + 1) { $L = $y; }
  30     elsif ($y != $L) { out(); $O = $L = $y; }
  31   }
  32   out();
  33   print "$who: $S\n"
  34 }