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Diffstat (limited to 'fetch-pack.c')
-rw-r--r--fetch-pack.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/fetch-pack.c b/fetch-pack.c
index acd55ba..80fb3bd 100644
--- a/fetch-pack.c
+++ b/fetch-pack.c
@@ -1050,6 +1050,8 @@ static struct ref *do_fetch_pack(struct fetch_pack_args *args,
print_verbose(args, _("Server supports %s"), "deepen-relative");
else if (args->deepen_relative)
die(_("Server does not support --deepen"));
+ if (!server_supports_hash(the_hash_algo->name, NULL))
+ die(_("Server does not support this repository's object format"));
if (!args->no_dependents) {
mark_complete_and_common_ref(negotiator, args, &ref);
@@ -1188,6 +1190,7 @@ static int send_fetch_request(struct fetch_negotiator *negotiator, int fd_out,
int sideband_all, int seen_ack)
{
int ret = 0;
+ const char *hash_name;
struct strbuf req_buf = STRBUF_INIT;
if (server_supports_v2("fetch", 1))
@@ -1202,6 +1205,17 @@ static int send_fetch_request(struct fetch_negotiator *negotiator, int fd_out,
args->server_options->items[i].string);
}
+ if (server_feature_v2("object-format", &hash_name)) {
+ int hash_algo = hash_algo_by_name(hash_name);
+ if (hash_algo_by_ptr(the_hash_algo) != hash_algo)
+ die(_("mismatched algorithms: client %s; server %s"),
+ the_hash_algo->name, hash_name);
+ packet_write_fmt(fd_out, "object-format=%s", the_hash_algo->name);
+ } else if (hash_algo_by_ptr(the_hash_algo) != GIT_HASH_SHA1) {
+ die(_("the server does not support algorithm '%s'"),
+ the_hash_algo->name);
+ }
+
packet_buf_delim(&req_buf);
if (args->use_thin_pack)
packet_buf_write(&req_buf, "thin-pack");