[PATCH] git-peek-remote: show tags and heads from a remote repository.

Add a git-peek-remote command that talks with upload-pack the
same way git-fetch-pack and git-clone-pack do, to show the
references the remote side has on the standard output.

A later patch introduces git-ls-remote that implements a UI to
store tag values retrieved using this command.

Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 55 insertions, 0 deletions

diff --git a/peek-remote.c b/peek-remote.c
new file mode 100644
index 000000000..4b1d0d5ba
--- /dev/null
+++ b/peek-remote.c
@@ -0,0 +1,55 @@
+#include "cache.h"
+#include "refs.h"
+#include "pkt-line.h"
+#include <sys/wait.h>
+
+static const char peek_remote_usage[] =
+"git-peek-remote [--exec=upload-pack] [host:]directory";
+static const char *exec = "git-upload-pack";
+
+static int peek_remote(int fd[2])
+{
+	struct ref *ref;
+
+	get_remote_heads(fd[0], &ref, 0, NULL);
+	packet_flush(fd[1]);
+
+	while (ref) {
+		printf("%s	%s\n", sha1_to_hex(ref->old_sha1), ref->name);
+		ref = ref->next;
+	}
+	return 0;
+}
+
+int main(int argc, char **argv)
+{
+	int i, ret;
+	char *dest = NULL;
+	int fd[2];
+	pid_t pid;
+
+	for (i = 1; i < argc; i++) {
+		char *arg = argv[i];
+
+		if (*arg == '-') {
+			if (!strncmp("--exec=", arg, 7))
+				exec = arg + 7;
+			else
+				usage(peek_remote_usage);
+			continue;
+		}
+		dest = arg;
+		break;
+	}
+	if (!dest || i != argc - 1)
+		usage(peek_remote_usage);
+
+	pid = git_connect(fd, dest, exec);
+	if (pid < 0)
+		return 1;
+	ret = peek_remote(fd);
+	close(fd[0]);
+	close(fd[1]);
+	finish_connect(pid);
+	return ret;
+}