Merge branch 'bc/sha-256-part-2'

[thirdparty/git.git] / transport-helper.c

diff --git a/transport-helper.c b/transport-helper.c
index 93a6f507936348e3b2eb43f06663725540646441..ad0bf8e18df20189dfecb11e69ae6c7974952679 100644 (file)
--- a/transport-helper.c
+++ b/transport-helper.c
@@ -32,7 +32,8 @@ struct helper_data {
                signed_tags : 1,
                check_connectivity : 1,
                no_disconnect_req : 1,
-               no_private_update : 1;
+               no_private_update : 1,
+               object_format : 1;
 
        /*
         * As an optimization, the transport code may invoke fetch before
@@ -207,6 +208,8 @@ static struct child_process *get_helper(struct transport *transport)
                        data->import_marks = xstrdup(arg);
                } else if (starts_with(capname, "no-private-update")) {
                        data->no_private_update = 1;
+               } else if (starts_with(capname, "object-format")) {
+                       data->object_format = 1;
                } else if (mandatory) {
                        die(_("unknown mandatory capability %s; this remote "
                              "helper probably needs newer version of Git"),
@@ -1104,6 +1107,12 @@ static struct ref *get_refs_list_using_list(struct transport *transport,
        data->get_refs_list_called = 1;
        helper = get_helper(transport);
 
+       if (data->object_format) {
+               write_str_in_full(helper->in, "option object-format\n");
+               if (recvline(data, &buf) || strcmp(buf.buf, "ok"))
+                       exit(128);
+       }
+
        if (data->push && for_push)
                write_str_in_full(helper->in, "list for-push\n");
        else
@@ -1116,6 +1125,17 @@ static struct ref *get_refs_list_using_list(struct transport *transport,
 
                if (!*buf.buf)
                        break;
+               else if (buf.buf[0] == ':') {
+                       const char *value;
+                       if (skip_prefix(buf.buf, ":object-format ", &value)) {
+                               int algo = hash_algo_by_name(value);
+                               if (algo == GIT_HASH_UNKNOWN)
+                                       die(_("unsupported object format '%s'"),
+                                           value);
+                               transport->hash_algo = &hash_algos[algo];
+                       }
+                       continue;
+               }
 
                eov = strchr(buf.buf, ' ');
                if (!eov)
@@ -1128,7 +1148,7 @@ static struct ref *get_refs_list_using_list(struct transport *transport,
                if (buf.buf[0] == '@')
                        (*tail)->symref = xstrdup(buf.buf + 1);
                else if (buf.buf[0] != '?')
-                       get_oid_hex(buf.buf, &(*tail)->old_oid);
+                       get_oid_hex_algop(buf.buf, &(*tail)->old_oid, transport->hash_algo);
                if (eon) {
                        if (has_attribute(eon + 1, "unchanged")) {
                                (*tail)->status |= REF_STATUS_UPTODATE;