Make Octopus merge message a bit nicer.

[git.git] / git-pull.sh

diff --git a/git-pull.sh b/git-pull.sh
index 71327a2..0c137f1 100755 (executable)
--- a/git-pull.sh
+++ b/git-pull.sh
@@ -57,10 +57,81 @@ then
 fi
 
 merge_head=$(sed -e 's/        .*//' "$GIT_DIR"/FETCH_HEAD | tr '\012' ' ')
-merge_name=$(
-    perl -e 'print join("; ", map { chomp; s/^[0-9a-f]*        //; $_ } <>)' \
-    "$GIT_DIR"/FETCH_HEAD
-)
+
+case "$merge_head" in
+?*' '?*)
+       merge_name="Octopus merge of "$(
+           perl -e '
+           my @src;
+           my %src;
+
+           sub andjoin {
+               my ($label, $labels, $stuff, $src) = @_;
+               my $l = scalar @$stuff;
+               my $m = "";
+               if ($l == 0) {
+                   return "";
+               }
+               if ($l == 1) {
+                   $m = "$label $stuff->[0]";
+               }
+               else {
+                   $m = ("$labels " .
+                         join (", ", @{$stuff}[0..$l-2]) .
+                         " and $stuff->[-1]");
+               }
+               if ($src ne ".") {
+                   $m .= " from $src";
+               }
+               return $m;
+           }
+
+           while (<>) {
+               my ($bname, $tname, $gname, $src);
+               s/^[0-9a-f]*    //;
+               if (s/ of (.*)$//) {
+                   $src = $1;
+               } else {
+                   $src = ".";
+               }
+               if (! exists $src{$src}) {
+                   push @src, $src;
+                   $src{$src} = { BRANCH => [], TAG => [], GENERIC => [] };
+               }
+               if (/^branch (.*)$/) {
+                   push @{$src{$src}{BRANCH}}, $1;
+               }
+               elsif (/^tag (.*)$/) {
+                   push @{$src{$src}{TAG}}, $1;
+               }
+               else {
+                   push @{$src{$src}{GENERIC}}, $1;
+               }
+           }
+           my @msg;
+           for my $src (@src) {
+               my $bag = $src{$src}{BRANCH};
+               if (@{$bag}) {
+                   push @msg, andjoin("branch", "branches", $bag, $src);
+               }
+               $bag = $src{$src}{TAG};
+               if (@{$bag}) {
+                   push @msg, andjoin("tag", "tags", $bag, $src);
+               }
+               $bag = $src{$src}{GENERIC};
+               if (@{$bag}) {
+                   push @msg, andjoin("commit", "commits", $bag, $src);
+               }
+           }
+           print join("; ", @msg);
+           ' "$GIT_DIR"/FETCH_HEAD
+       )
+       ;;
+*)
+       merge_name="Merge "$(sed -e 's/^[0-9a-f]*       //' \
+               "$GIT_DIR"/FETCH_HEAD)
+       ;;
+esac
 
 case "$merge_head" in
 '')
@@ -69,4 +140,4 @@ case "$merge_head" in
        ;;
 esac
 
-git-merge $no_summary $strategy_args "Merge $merge_name" HEAD $merge_head
+git-merge $no_summary $strategy_args "$merge_name" HEAD $merge_head