X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=dgit.git;a=blobdiff_plain;f=Debian%2FDgit.pm;h=37cbc51b68e52116705d1988cf040eef36919bda;hp=32c2bc5673cad88ac87f1e569fa2a0518a5cf443;hb=9e3287b0f9611af321b7cb1ca7b7757dbe96cfd2;hpb=0c838feda384f115a115ddd609eca9b8c6ece162

diff --git a/Debian/Dgit.pm b/Debian/Dgit.pm
index 32c2bc56..37cbc51b 100644
--- a/Debian/Dgit.pm
+++ b/Debian/Dgit.pm
@@ -188,12 +188,15 @@ sub git_rev_parse ($) {
     return cmdoutput qw(git rev-parse), "$_[0]~0";
 }
 
-sub git_for_each_ref ($$) {
-    my ($pattern,$func) = @_;
+sub git_for_each_ref ($$;$) {
+    my ($pattern,$func,$gitdir) = @_;
     # calls $func->($objid,$objtype,$fullrefname,$reftail);
     # $reftail is RHS of ref after refs/[^/]+/
     # breaks if $pattern matches any ref `refs/blah' where blah has no `/'
     my @cmd = (qw(git for-each-ref), $pattern);
+    if (defined $gitdir) {
+	@cmd = ('sh','-ec','cd "$1"; shift; exec "$@"','x', $gitdir, @cmd);
+    }
     open GFER, "-|", @cmd or die $!;
     debugcmd "|", @cmd;
     while (<GFER>) {
@@ -208,7 +211,7 @@ sub git_for_each_ref ($$) {
 sub git_get_ref ($) {
     # => '' if no such ref
     my ($refname) = @_;
-    my $_ = $refname;
+    local $_ = $refname;
     s{^refs/}{[r]efs/} or die "$refname $_ ?";
     return cmdoutput qw(git for-each-ref --format=%(objectname)), $_;
 }