bisect: introduce support for --no-checkout option.

diff --git a/git-svn.perl b/git-svn.perl
index da3fea8bd2c857bbc2e841dec7545318b3b9354e..89f83fd27abe315804173a809b3c7ef00ead6527 100755 (executable)
--- a/git-svn.perl
+++ b/git-svn.perl
@@ -784,6 +784,15 @@ sub cmd_find_rev {
        print "$result\n" if $result;
 }
 
+sub auto_create_empty_directories {
+       my ($gs) = @_;
+       my $var = eval { command_oneline('config', '--get', '--bool',
+                                        "svn-remote.$gs->{repo_id}.automkdirs") };
+       # By default, create empty directories by consulting the unhandled log,
+       # but allow setting it to 'false' to skip it.
+       return !($var && $var eq 'false');
+}
+
 sub cmd_rebase {
        command_noisy(qw/update-index --refresh/);
        my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
@@ -807,7 +816,9 @@ sub cmd_rebase {
                $_fetch_all ? $gs->fetch_all : $gs->fetch;
        }
        command_noisy(rebase_cmd(), $gs->refname);
-       $gs->mkemptydirs;
+       if (auto_create_empty_directories($gs)) {
+               $gs->mkemptydirs;
+       }
 }
 
 sub cmd_show_ignore {
@@ -1245,7 +1256,9 @@ sub post_fetch_checkout {
        command_noisy(qw/read-tree -m -u -v HEAD HEAD/);
        print STDERR "Checked out HEAD:\n  ",
                     $gs->full_url, " r", $gs->last_rev, "\n";
-       $gs->mkemptydirs($gs->last_rev);
+       if (auto_create_empty_directories($gs)) {
+               $gs->mkemptydirs($gs->last_rev);
+       }
 }
 
 sub complete_svn_url {
@@ -3111,8 +3124,12 @@ sub lookup_svn_merge {
                        next;
                }
 
-               push @merged_commit_ranges,
-                       "$bottom_commit^..$top_commit";
+               if (scalar(command('rev-parse', "$bottom_commit^@"))) {
+                       push @merged_commit_ranges,
+                            "$bottom_commit^..$top_commit";
+               } else {
+                       push @merged_commit_ranges, "$top_commit";
+               }
 
                if ( !defined $tip or $top > $tip ) {
                        $tip = $top;
@@ -3141,9 +3158,9 @@ sub check_cherry_pick {
        my $parents = shift;
        my @ranges = @_;
        my %commits = map { $_ => 1 }
-               _rev_list("--no-merges", $tip, "--not", $base, @$parents);
+               _rev_list("--no-merges", $tip, "--not", $base, @$parents, "--");
        for my $range ( @ranges ) {
-               delete @commits{_rev_list($range)};
+               delete @commits{_rev_list($range, "--")};
        }
        for my $commit (keys %commits) {
                if (has_no_changes($commit)) {