Parse the server's object-format capability and respond accordingly,
dying if there is a mismatch.
Signed-off-by: brian m. carlson <sandals@xxxxxxxxxxxxxxxxxxxx>
---
fetch-pack.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/fetch-pack.c b/fetch-pack.c
index 34c339a5fe..ecfb8c3cf5 100644
--- a/fetch-pack.c
+++ b/fetch-pack.c
@@ -1180,6 +1180,7 @@ 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))
@@ -1194,6 +1195,17 @@ 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");
