git-svn: understand grafts when doing dcommit
Use the rev-list --parents functionality to read the parents
of the commit. cat-file only shows the raw object with the
original parents and doesn't take into account grafts; so
we'll rely on rev-list machinery for the smarts here.
Signed-off-by: Eric Wong <normalperson@yhbt.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/git-svn.perl b/git-svn.perl
index fbd4691..f818160 100755
--- a/git-svn.perl
+++ b/git-svn.perl
@@ -841,14 +841,9 @@
sub read_commit_parents {
my ($parents, $c) = @_;
- my ($fh, $ctx) = command_output_pipe(qw/cat-file commit/, $c);
- while (<$fh>) {
- chomp;
- last if '';
- /^parent ($sha1)/ or next;
- push @{$parents->{$c}}, $1;
- }
- close $fh; # break the pipe
+ chomp(my $p = command_oneline(qw/rev-list --parents -1/, $c));
+ $p =~ s/^($c)\s*// or die "rev-list --parents -1 $c failed!\n";
+ @{$parents->{$c}} = split(/ /, $p);
}
sub linearize_history {
