git-debrebase: trees_diff_walk: Support recursion

[dgit.git] / git-debrebase

diff --git a/git-debrebase b/git-debrebase
index 4bfe0952518214203c5e3ac397b27c53ceb93354..58d3a4abf3e3bf4a0acd2a2c5d2fcfaab1b6fdfd 100755 (executable)
--- a/git-debrebase
+++ b/git-debrebase
@@ -196,10 +196,12 @@ sub get_tree ($;$$) {
        return () if $type eq 'missing';
     }
 
+    $recurse = !!$recurse;
+
     confess "get_tree needs object not $x ?" unless $x =~ m{^[0-9a-f]+\:};
 
     our (@get_tree_memo, %get_tree_memo);
-    my $memo = $get_tree_memo{$x};
+    my $memo = $get_tree_memo{$recurse,$x};
     return @$memo if $memo;
 
     local $Debian::Dgit::debugcmd_when_debuglevel = 3;
@@ -216,7 +218,7 @@ sub get_tree ($;$$) {
        push @l, [ $n, $i ];
        confess "$x need $last < $n ?" unless $last lt $n;
     }
-    $get_tree_memo{$x} = \@l;
+    $get_tree_memo{$recurse,$x} = \@l;
     push @get_tree_memo, $x;
     if (@get_tree_memo > 10) {
        delete $get_tree_memo{ shift @get_tree_memo };
@@ -225,15 +227,18 @@ sub get_tree ($;$$) {
 }
 
 sub trees_diff_walk ($$$;$) {
-    # trees_diff_walk [$all,] $x, $y, sub {... }
-    # calls sub->($name, $ix, $iy) for each difference (with $all, each name)
+    # trees_diff_walk [{..opts...},] $x, $y, sub {... }
+    # calls sub->($name, $ix, $iy) for each difference
     # $x and $y are as for get_tree
     # where $name, $ix, $iy are $name and $info from get_tree
-    my $all = shift @_ if @_>=4;
+    # opts are   all       call even for names same in both
+    #            recurse   call even for names same in both
+    my $opts = shift @_ if @_>=4;
     my ($x,$y,$call) = @_;
+    my $all = $opts->{all};
     return if !$all and $x eq $y;
-    my @x = get_tree $x;
-    my @y = get_tree $y;
+    my @x = get_tree $x, 0, $opts->{recurse};
+    my @y = get_tree $y, 0, $opts->{recurse};
     printdebug "trees_diff_walk(..$x,$y..) ".Dumper(\@x,\@y)
        if $debuglevel >= 3;
     while (@x || @y) {