git-svn: allow --find-copies-harder and -l<num> to be passed on commit

Both of these options are passed directly to git-diff-tree when
committing to a SVN repository.

Signed-off-by: Eric Wong <normalperson@yhbt.net>
Signed-off-by: Junio C Hamano <junkio@cox.net>

contrib/git-svn/git-svn

@@ -30,7 +30,8 @@ use Getopt::Long qw/:config gnu_getopt no_ignore_case auto_abbrev/;
 use File::Spec qw//;
 my $sha1 = qr/[a-f\d]{40}/;
 my $sha1_short = qr/[a-f\d]{6,40}/;
-my ($_revision,$_stdin,$_no_ignore_ext,$_no_stop_copy,$_help,$_rmdir,$_edit);
+my ($_revision,$_stdin,$_no_ignore_ext,$_no_stop_copy,$_help,$_rmdir,$_edit,
+	$_find_copies_harder, $_l);
 
 GetOptions(	'revision|r=s' => \$_revision,
 		'no-ignore-externals' => \$_no_ignore_ext,
@@ -38,6 +39,8 @@ GetOptions(	'revision|r=s' => \$_revision,
 		'edit|e' => \$_edit,
 		'rmdir' => \$_rmdir,
 		'help|H|h' => \$_help,
+		'find-copies-harder' => \$_find_copies_harder,
+		'l=i' => \$_l,
 		'no-stop-on-copy' => \$_no_stop_copy );
 my %cmd = (
 	fetch => [ \&fetch, "Download new revisions from SVN" ],
@@ -348,7 +351,10 @@ sub svn_checkout_tree {
 	my $pid = open my $diff_fh, '-|';
 	defined $pid or croak $!;
 	if ($pid == 0) {
-		exec(qw(git-diff-tree -z -r -C), $from, $commit) or croak $!;
+		my @diff_tree = qw(git-diff-tree -z -r -C);
+		push @diff_tree, '--find-copies-harder' if $_find_copies_harder;
+		push @diff_tree, "-l$_l" if defined $_l;
+		exec(@diff_tree, $from, $commit) or croak $!;
 	}
 	my $mods = parse_diff_tree($diff_fh);
 	unless (@$mods) {

contrib/git-svn/git-svn.txt

@@ -99,6 +99,13 @@ OPTIONS
 	default for objects that are commits, and forced on when committing
 	tree objects.
 
+-l<num>::
+--find-copies-harder::
+	Both of these are only used with the 'commit' command.
+
+	They are both passed directly to git-diff-tree see
+	git-diff-tree(1) for more information.
+
 COMPATIBILITY OPTIONS
 ---------------------
 --no-ignore-externals::