Big tool rename.

As promised, this is the "big tool rename" patch.  The primary differences
since 0.99.6 are:

  (1) git-*-script are no more.  The commands installed do not
      have any such suffix so users do not have to remember if
      something is implemented as a shell script or not.

  (2) Many command names with 'cache' in them are renamed with
      'index' if that is what they mean.

There are backward compatibility symblic links so that you and
Porcelains can keep using the old names, but the backward
compatibility support  is expected to be removed in the near
future.

Signed-off-by: Junio C Hamano <junkio@cox.net>

1 files changed, 133 insertions, 0 deletions

diff --git a/ssh-upload.c b/ssh-upload.c
new file mode 100644
index 000000000..10a368733
--- /dev/null
+++ b/ssh-upload.c
@@ -0,0 +1,133 @@
+#include "cache.h"
+#include "rsh.h"
+#include "refs.h"
+
+#include <string.h>
+
+static unsigned char local_version = 1;
+static unsigned char remote_version = 0;
+
+static int verbose = 0;
+
+static int serve_object(int fd_in, int fd_out) {
+	ssize_t size;
+	unsigned char sha1[20];
+	signed char remote;
+	int posn = 0;
+	do {
+		size = read(fd_in, sha1 + posn, 20 - posn);
+		if (size < 0) {
+			perror("git-ssh-upload: read ");
+			return -1;
+		}
+		if (!size)
+			return -1;
+		posn += size;
+	} while (posn < 20);
+	
+	if (verbose)
+		fprintf(stderr, "Serving %s\n", sha1_to_hex(sha1));
+
+	remote = 0;
+	
+	if (!has_sha1_file(sha1)) {
+		fprintf(stderr, "git-ssh-upload: could not find %s\n",
+			sha1_to_hex(sha1));
+		remote = -1;
+	}
+	
+	write(fd_out, &remote, 1);
+	
+	if (remote < 0)
+		return 0;
+	
+	return write_sha1_to_fd(fd_out, sha1);
+}
+
+static int serve_version(int fd_in, int fd_out)
+{
+	if (read(fd_in, &remote_version, 1) < 1)
+		return -1;
+	write(fd_out, &local_version, 1);
+	return 0;
+}
+
+static int serve_ref(int fd_in, int fd_out)
+{
+	char ref[PATH_MAX];
+	unsigned char sha1[20];
+	int posn = 0;
+	signed char remote = 0;
+	do {
+		if (read(fd_in, ref + posn, 1) < 1)
+			return -1;
+		posn++;
+	} while (ref[posn - 1]);
+
+	if (verbose)
+		fprintf(stderr, "Serving %s\n", ref);
+
+	if (get_ref_sha1(ref, sha1))
+		remote = -1;
+	write(fd_out, &remote, 1);
+	if (remote)
+		return 0;
+	write(fd_out, sha1, 20);
+        return 0;
+}
+
+
+static void service(int fd_in, int fd_out) {
+	char type;
+	int retval;
+	do {
+		retval = read(fd_in, &type, 1);
+		if (retval < 1) {
+			if (retval < 0)
+				perror("git-ssh-upload: read ");
+			return;
+		}
+		if (type == 'v' && serve_version(fd_in, fd_out))
+			return;
+		if (type == 'o' && serve_object(fd_in, fd_out))
+			return;
+		if (type == 'r' && serve_ref(fd_in, fd_out))
+			return;
+	} while (1);
+}
+
+static const char ssh_push_usage[] =
+	"git-ssh-upload [-c] [-t] [-a] [-w ref] commit-id url";
+
+int main(int argc, char **argv)
+{
+	int arg = 1;
+        char *commit_id;
+        char *url;
+	int fd_in, fd_out;
+	const char *prog;
+	unsigned char sha1[20];
+	char hex[41];
+
+	prog = getenv("GIT_SSH_PULL");
+	if (!prog) prog = "git-ssh-fetch";
+	while (arg < argc && argv[arg][0] == '-') {
+		if (argv[arg][1] == 'w')
+			arg++;
+                arg++;
+        }
+	if (argc < arg + 2)
+		usage(ssh_push_usage);
+	commit_id = argv[arg];
+	url = argv[arg + 1];
+	if (get_sha1(commit_id, sha1))
+		usage(ssh_push_usage);
+	memcpy(hex, sha1_to_hex(sha1), sizeof(hex));
+	argv[arg] = hex;
+
+	if (setup_connection(&fd_in, &fd_out, prog, url, arg, argv + 1))
+		return 1;
+
+	service(fd_in, fd_out);
+	return 0;
+}