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remote-curl: implement object-format extensions 

Implement the object-format extensions that let us determine the hash
algorithm in use when pushing, pulling, and fetching.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
brian m. carlson 2020-05-25 19:59:04 +00:00 committed by Junio C Hamano
parent 8b85ee4f47
commit 7f60501775
1 changed files with 18 additions and 1 deletions
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19
remote-curl.c
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@ -41,7 +41,9 @@ struct options {
deepen_relative : 1,
from_promisor : 1,
no_dependents : 1,
atomic : 1;
atomic : 1,
object_format : 1;
const struct git_hash_algo *hash_algo;
};
static struct options options;
static struct string_list cas_options = STRING_LIST_INIT_DUP;
@ -190,6 +192,16 @@ static int set_option(const char *name, const char *value)
} else if (!strcmp(name, "filter")) {
options.filter = xstrdup(value);
return 0;
} else if (!strcmp(name, "object-format")) {
int algo;
options.object_format = 1;
if (strcmp(value, "true")) {
algo = hash_algo_by_name(value);
if (algo == GIT_HASH_UNKNOWN)
die("unknown object format '%s'", value);
options.hash_algo = &hash_algos[algo];
}
return 0;
} else {
return 1 /* unsupported */;
}
@ -231,6 +243,7 @@ static struct ref *parse_git_refs(struct discovery *heads, int for_push)
case protocol_v0:
get_remote_heads(&reader, &list, for_push ? REF_NORMAL : 0,
NULL, &heads->shallow);
options.hash_algo = reader.hash_algo;
break;
case protocol_unknown_version:
BUG("unknown protocol version");
@ -509,6 +522,9 @@ static struct ref *get_refs(int for_push)
static void output_refs(struct ref *refs)
{
struct ref *posn;
if (options.object_format && options.hash_algo) {
printf(":object-format %s\n", options.hash_algo->name);
}
for (posn = refs; posn; posn = posn->next) {
if (posn->symref)
printf("@%s %s\n", posn->symref, posn->name);
@ -1439,6 +1455,7 @@ int cmd_main(int argc, const char **argv)
printf("option\n");
printf("push\n");
printf("check-connectivity\n");
printf("object-format\n");
printf("\n");
fflush(stdout);
} else if (skip_prefix(buf.buf, "stateless-connect ", &arg)) {