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authorAndy Whitcroft <apw@shadowen.org>2007-11-09 23:32:10 +0000
committerJunio C Hamano <gitster@pobox.com>2007-11-09 21:14:10 -0800
commit28b9d6e548322755bbdb24c28a493862f61b1eba (patch)
tree8dd1105f04082020776aaf9cf399ce2fffa64d7f /builtin-send-pack.c
parent0d9d89f61c58f72d96585a61defb0634873c38ac (diff)
downloadgit-28b9d6e548322755bbdb24c28a493862f61b1eba.tar.gz
git-28b9d6e548322755bbdb24c28a493862f61b1eba.tar.xz
Teach send-pack a mirror mode
Existing "git push --all" is almost perfect for backing up to another repository, except that "--all" only means "all branches" in modern git, and it does not delete old branches and tags that exist at the back-up repository that you have removed from your local repository. This teaches "git-send-pack" a new "--mirror" option. The difference from the "--all" option are that (1) it sends all refs, not just branches, and (2) it deletes old refs you no longer have on the local side from the remote side. Original patch by Junio C Hamano. Signed-off-by: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'builtin-send-pack.c')
-rw-r--r--builtin-send-pack.c46
1 files changed, 34 insertions, 12 deletions
diff --git a/builtin-send-pack.c b/builtin-send-pack.c
index 5a0f5c681..d42164ec0 100644
--- a/builtin-send-pack.c
+++ b/builtin-send-pack.c
@@ -8,7 +8,7 @@
#include "send-pack.h"
static const char send_pack_usage[] =
-"git-send-pack [--all] [--dry-run] [--force] [--receive-pack=<git-receive-pack>] [--verbose] [--thin] [<host>:]<directory> [<ref>...]\n"
+"git-send-pack [--all | --mirror] [--dry-run] [--force] [--receive-pack=<git-receive-pack>] [--verbose] [--thin] [<host>:]<directory> [<ref>...]\n"
" --all and explicit <ref> specification are mutually exclusive.";
static struct send_pack_args args = {
@@ -227,6 +227,12 @@ static int do_send_pack(int in, int out, struct remote *remote, const char *dest
int allow_deleting_refs = 0;
int expect_status_report = 0;
int shown_dest = 0;
+ int flags = MATCH_REFS_NONE;
+
+ if (args.send_all)
+ flags |= MATCH_REFS_ALL;
+ if (args.send_mirror)
+ flags |= MATCH_REFS_MIRROR;
/* No funny business with the matcher */
remote_tail = get_remote_heads(in, &remote_refs, 0, NULL, REF_NORMAL);
@@ -242,7 +248,7 @@ static int do_send_pack(int in, int out, struct remote *remote, const char *dest
if (!remote_tail)
remote_tail = &remote_refs;
if (match_refs(local_refs, remote_refs, &remote_tail,
- nr_refspec, refspec, args.send_all))
+ nr_refspec, refspec, flags))
return -1;
if (!remote_refs) {
@@ -259,20 +265,28 @@ static int do_send_pack(int in, int out, struct remote *remote, const char *dest
char old_hex[60], *new_hex;
int will_delete_ref;
const char *pretty_ref;
- const char *pretty_peer;
+ const char *pretty_peer = NULL; /* only used when not deleting */
+ const unsigned char *new_sha1;
- if (!ref->peer_ref)
- continue;
+ if (!ref->peer_ref) {
+ if (!args.send_mirror)
+ continue;
+ new_sha1 = null_sha1;
+ }
+ else
+ new_sha1 = ref->peer_ref->new_sha1;
if (!shown_dest) {
fprintf(stderr, "To %s\n", dest);
shown_dest = 1;
}
+ will_delete_ref = is_null_sha1(new_sha1);
+
pretty_ref = prettify_ref(ref->name);
- pretty_peer = prettify_ref(ref->peer_ref->name);
+ if (!will_delete_ref)
+ pretty_peer = prettify_ref(ref->peer_ref->name);
- will_delete_ref = is_null_sha1(ref->peer_ref->new_sha1);
if (will_delete_ref && !allow_deleting_refs) {
fprintf(stderr, " ! %-*s %s (remote does not support deleting refs)\n",
SUMMARY_WIDTH, "[rejected]", pretty_ref);
@@ -280,7 +294,7 @@ static int do_send_pack(int in, int out, struct remote *remote, const char *dest
continue;
}
if (!will_delete_ref &&
- !hashcmp(ref->old_sha1, ref->peer_ref->new_sha1)) {
+ !hashcmp(ref->old_sha1, new_sha1)) {
if (args.verbose)
fprintf(stderr, " = %-*s %s -> %s\n",
SUMMARY_WIDTH, "[up to date]",
@@ -312,8 +326,7 @@ static int do_send_pack(int in, int out, struct remote *remote, const char *dest
!is_null_sha1(ref->old_sha1) &&
!ref->force) {
if (!has_sha1_file(ref->old_sha1) ||
- !ref_newer(ref->peer_ref->new_sha1,
- ref->old_sha1)) {
+ !ref_newer(new_sha1, ref->old_sha1)) {
/* We do not have the remote ref, or
* we know that the remote ref is not
* an ancestor of what we are trying to
@@ -328,7 +341,7 @@ static int do_send_pack(int in, int out, struct remote *remote, const char *dest
continue;
}
}
- hashcpy(ref->new_sha1, ref->peer_ref->new_sha1);
+ hashcpy(ref->new_sha1, new_sha1);
if (!will_delete_ref)
new_refs++;
strcpy(old_hex, sha1_to_hex(ref->old_sha1));
@@ -459,6 +472,10 @@ int cmd_send_pack(int argc, const char **argv, const char *prefix)
args.dry_run = 1;
continue;
}
+ if (!strcmp(arg, "--mirror")) {
+ args.send_mirror = 1;
+ continue;
+ }
if (!strcmp(arg, "--force")) {
args.force_update = 1;
continue;
@@ -483,7 +500,12 @@ int cmd_send_pack(int argc, const char **argv, const char *prefix)
}
if (!dest)
usage(send_pack_usage);
- if (heads && args.send_all)
+ /*
+ * --all and --mirror are incompatible; neither makes sense
+ * with any refspecs.
+ */
+ if ((heads && (args.send_all || args.send_mirror)) ||
+ (args.send_all && args.send_mirror))
usage(send_pack_usage);
if (remote_name) {