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authorJunio C Hamano <gitster@pobox.com>2014-01-17 20:21:14 (GMT)
committerJunio C Hamano <gitster@pobox.com>2014-01-17 20:21:20 (GMT)
commit92251b1b5b5e53ac9de890105e2a2bd9d15e2ecb (patch)
treeed77d1e0ceaf2142ce14583a1b60c4af204571a0 /connect.c
parentd8cf714c0edf261a2bcc126fc240b10ed04a5b8d (diff)
parent3b32a7ca90b9c63f2306feb2a66b62b94c1a640f (diff)
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Merge branch 'nd/shallow-clone'
Fetching from a shallow-cloned repository used to be forbidden, primarily because the codepaths involved were not carefully vetted and we did not bother supporting such usage. This attempts to allow object transfer out of a shallow-cloned repository in a controlled way (i.e. the receiver become a shallow repository with truncated history). * nd/shallow-clone: (31 commits) t5537: fix incorrect expectation in test case 10 shallow: remove unused code send-pack.c: mark a file-local function static git-clone.txt: remove shallow clone limitations prune: clean .git/shallow after pruning objects clone: use git protocol for cloning shallow repo locally send-pack: support pushing from a shallow clone via http receive-pack: support pushing to a shallow clone via http smart-http: support shallow fetch/clone remote-curl: pass ref SHA-1 to fetch-pack as well send-pack: support pushing to a shallow clone receive-pack: allow pushes that update .git/shallow connected.c: add new variant that runs with --shallow-file add GIT_SHALLOW_FILE to propagate --shallow-file to subprocesses receive/send-pack: support pushing from a shallow clone receive-pack: reorder some code in unpack() fetch: add --update-shallow to accept refs that update .git/shallow upload-pack: make sure deepening preserves shallow roots fetch: support fetching from a shallow repository clone: support remote shallow repository ...
Diffstat (limited to 'connect.c')
-rw-r--r--connect.c22
1 files changed, 13 insertions, 9 deletions
diff --git a/connect.c b/connect.c
index c763eed..4150412 100644
--- a/connect.c
+++ b/connect.c
@@ -8,6 +8,7 @@
#include "connect.h"
#include "url.h"
#include "string-list.h"
+#include "sha1-array.h"
static char *server_capabilities;
static const char *parse_feature_value(const char *, const char *, int *);
@@ -45,13 +46,6 @@ int check_ref_type(const struct ref *ref, int flags)
return check_ref(ref->name, strlen(ref->name), flags);
}
-static void add_extra_have(struct extra_have_objects *extra, unsigned char *sha1)
-{
- ALLOC_GROW(extra->array, extra->nr + 1, extra->alloc);
- hashcpy(&(extra->array[extra->nr][0]), sha1);
- extra->nr++;
-}
-
static void die_initial_contact(int got_at_least_one_head)
{
if (got_at_least_one_head)
@@ -122,7 +116,8 @@ static void annotate_refs_with_symref_info(struct ref *ref)
*/
struct ref **get_remote_heads(int in, char *src_buf, size_t src_len,
struct ref **list, unsigned int flags,
- struct extra_have_objects *extra_have)
+ struct sha1_array *extra_have,
+ struct sha1_array *shallow_points)
{
struct ref **orig_list = list;
int got_at_least_one_head = 0;
@@ -148,6 +143,15 @@ struct ref **get_remote_heads(int in, char *src_buf, size_t src_len,
if (len > 4 && starts_with(buffer, "ERR "))
die("remote error: %s", buffer + 4);
+ if (len == 48 && starts_with(buffer, "shallow ")) {
+ if (get_sha1_hex(buffer + 8, old_sha1))
+ die("protocol error: expected shallow sha-1, got '%s'", buffer + 8);
+ if (!shallow_points)
+ die("repository on the other end cannot be shallow");
+ sha1_array_append(shallow_points, old_sha1);
+ continue;
+ }
+
if (len < 42 || get_sha1_hex(buffer, old_sha1) || buffer[40] != ' ')
die("protocol error: expected sha/ref, got '%s'", buffer);
name = buffer + 41;
@@ -160,7 +164,7 @@ struct ref **get_remote_heads(int in, char *src_buf, size_t src_len,
if (extra_have &&
name_len == 5 && !memcmp(".have", name, 5)) {
- add_extra_have(extra_have, old_sha1);
+ sha1_array_append(extra_have, old_sha1);
continue;
}