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   1 #!/bin/sh
   2
   3 MASTER=master
   4
   5 for range in $(
   6         prev_branch=
   7         {
   8                 git for-each-ref --format='%(refname)' refs/heads/maint-* |
   9                 perl -e '
  10                         sub compare_dotted_version {
  11                                 my (@ours) = split(/\./, $_[0]);
  12                                 my (@theirs) = split(/\./, $_[1]);
  13                                 my ($i, $diff);
  14
  15                                 for ($i = 0; $i < @ours && $i < @theirs; $i++) {
  16                                         $diff = $ours[$i] - $theirs[$i];
  17                                         return $diff if ($diff);
  18                                 }
  19                                 return 1 if ($i < @ours);
  20                                 return -1 if ($i < @theirs);
  21                                 return 0;
  22                         }
  23                         my @maint = ();
  24                         while (<STDIN>) {
  25                                 next unless s|^refs/heads/||;
  26                                 chomp;
  27                                 my ($v) = ($_ =~ /^maint-(.*)$/);
  28                                 push @maint, [$v, $_];
  29                         }
  30                         for (map { $_->[1] }
  31                              sort { compare_dotted_version($a->[0], $b->[0]) }
  32                              @maint) {
  33                                 print "$_\n";
  34                         }
  35                 '
  36                 cat <<-EOF
  37                 maint
  38                 $MASTER
  39                 next
  40                 EOF
  41         } |
  42         while read branch
  43         do
  44                 if test -n "$prev_branch"
  45                 then
  46                         echo "$branch..$prev_branch"
  47                 fi
  48                 prev_branch=$branch
  49         done
  50 ) seen..jch
  51 do
  52         lg=$(git log --oneline "$range")
  53         if test -n "$lg"
  54         then
  55                 echo "*** $range ***"
  56                 echo "$lg"
  57         fi
  58 done
  59
  60 if ! next_equiv=$(git rev-parse --verify 'jch^{/^### match next}' 2>/dev/null) ||
  61    ! git diff --stat --exit-code next $next_equiv
  62 then
  63         next_tree=$(git rev-parse next^{tree}) &&
  64         next_equiv=$(git rev-list --first-parent $MASTER..seen |
  65                         xargs -n1 sh -c '
  66                                 echo $(git rev-parse $1^{tree}) $1
  67                         ' - | sed -n -e "s/^$next_tree //p"
  68                     )
  69 fi
  70
  71 if test -n "$next_equiv"
  72 then
  73         jch=$(git rev-list --first-parent $MASTER..jch | wc -l) &&
  74         seen=$(git rev-list --first-parent $MASTER..seen | wc -l) &&
  75         next=$(git rev-list --first-parent $MASTER..$next_equiv | wc -l) &&
  76         if test $jch -le $next
  77         then
  78                 echo "$MASTER..$jch..jch..$next..next..$seen..seen"
  79         else
  80                 echo "$MASTER..$next..next..$jch..jch..$seen..seen"
  81         fi
  82 fi