remote: add 'rm' subcommand

Introduce git-remote rm <name> which will:
 - Remove the remote config entry for <name>.
 - Remove any config entries for tracking branches of <name>.
 - Remove any stored remote branches of <name>.

Signed-off-by: James Bowes <jbowes@dangerouslyinc.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/git-remote.perl b/git-remote.perl
index f6f283ea4f8b45671b7d9b34687d5d7b8475e8b3..f513a8ad990fb655c96afcf3115597b37d73fad5 100755 (executable)
--- a/git-remote.perl
+++ b/git-remote.perl
@@ -316,6 +316,34 @@ sub update_remote {
        }
 }
 
+sub rm_remote {
+    my ($name) = @_;
+       if (!exists $remote->{$name}) {
+               print STDERR "No such remote $name\n";
+               return;
+       }
+
+       $git->command('config', '--remove-section', "remote.$name");
+
+       eval {
+           my @trackers = $git->command('config', '--get-regexp',
+                       'branch.*.remote', $name);
+               for (@trackers) {
+                       /^branch\.(.*)?\.remote/;
+                       $git->config('--unset', "branch.$1.remote");
+                       $git->config('--unset', "branch.$1.merge");
+               }
+       };
+
+
+    my @refs = $git->command('for-each-ref',
+               '--format=%(refname) %(objectname)', "refs/remotes/$name");
+       for (@refs) {
+               ($ref, $object) = split;
+               $git->command(qw(update-ref -d), $ref, $object);
+       }
+}
+
 sub add_usage {
        print STDERR "Usage: git remote add [-f] [-t track]* [-m master] <name> <url>\n";
        exit(1);
@@ -422,9 +450,19 @@ elsif ($ARGV[0] eq 'add') {
        }
        add_remote($ARGV[1], $ARGV[2], \%opts);
 }
+elsif ($ARGV[0] eq 'rm') {
+       if (@ARGV <= 1) {
+               print STDERR "Usage: git remote rm <remote>\n";
+       }
+    else {
+        rm_remote($ARGV[1]);
+       }
+    exit(1);
+}
 else {
        print STDERR "Usage: git remote\n";
        print STDERR "       git remote add <name> <url>\n";
+       print STDERR "       git remote rm <name>\n";
        print STDERR "       git remote show <name>\n";
        print STDERR "       git remote prune <name>\n";
        print STDERR "       git remote update [group]\n";