git-svn: fix several fetch bugs related to repeated invocations

diff --git a/receive-pack.c b/receive-pack.c
index c176d8fd008ad858a1e60e19e7bf3ea14d735eb5..7f1dcc045c0818db3d515755e4bf1ae0d82f9647 100644 (file)
--- a/receive-pack.c
+++ b/receive-pack.c
@@ -10,6 +10,8 @@
 static const char receive_pack_usage[] = "git-receive-pack <git-dir>";
 
 static int deny_non_fast_forwards = 0;
+static int receive_unpack_limit = -1;
+static int transfer_unpack_limit = -1;
 static int unpack_limit = 100;
 static int report_status;
 
@@ -18,21 +20,22 @@ static int capabilities_sent;
 
 static int receive_pack_config(const char *var, const char *value)
 {
-       git_default_config(var, value);
-
-       if (strcmp(var, "receive.denynonfastforwards") == 0)
-       {
+       if (strcmp(var, "receive.denynonfastforwards") == 0) {
                deny_non_fast_forwards = git_config_bool(var, value);
                return 0;
        }
 
-       if (strcmp(var, "receive.unpacklimit") == 0)
-       {
-               unpack_limit = git_config_int(var, value);
+       if (strcmp(var, "receive.unpacklimit") == 0) {
+               receive_unpack_limit = git_config_int(var, value);
                return 0;
        }
 
-       return 0;
+       if (strcmp(var, "transfer.unpacklimit") == 0) {
+               transfer_unpack_limit = git_config_int(var, value);
+               return 0;
+       }
+
+       return git_default_config(var, value);
 }
 
 static int show_ref(const char *path, const unsigned char *sha1, int flag, void *cb_data)
@@ -106,7 +109,7 @@ static int update(struct command *cmd)
        struct ref_lock *lock;
 
        cmd->error_string = NULL;
-       if (!strncmp(name, "refs/", 5) && check_ref_format(name + 5)) {
+       if (!prefixcmp(name, "refs/") && check_ref_format(name + 5)) {
                cmd->error_string = "funny refname";
                return error("refusing to create funny ref '%s' locally",
                             name);
@@ -122,7 +125,7 @@ static int update(struct command *cmd)
        }
        if (deny_non_fast_forwards && !is_null_sha1(new_sha1) &&
            !is_null_sha1(old_sha1) &&
-           !strncmp(name, "refs/heads/", 11)) {
+           !prefixcmp(name, "refs/heads/")) {
                struct commit *old_commit, *new_commit;
                struct commit_list *bases, *ent;
 
@@ -250,20 +253,22 @@ static void read_head_info(void)
 
 static const char *parse_pack_header(struct pack_header *hdr)
 {
-       char *c = (char*)hdr;
-       ssize_t remaining = sizeof(struct pack_header);
-       do {
-               ssize_t r = xread(0, c, remaining);
-               if (r <= 0)
-                       return "eof before pack header was fully read";
-               remaining -= r;
-               c += r;
-       } while (remaining > 0);
-       if (hdr->hdr_signature != htonl(PACK_SIGNATURE))
+       switch (read_pack_header(0, hdr)) {
+       case PH_ERROR_EOF:
+               return "eof before pack header was fully read";
+
+       case PH_ERROR_PACK_SIGNATURE:
                return "protocol error (pack signature mismatch detected)";
-       if (!pack_version_ok(hdr->hdr_version))
+
+       case PH_ERROR_PROTOCOL:
                return "protocol error (pack version unsupported)";
-       return NULL;
+
+       default:
+               return "unknown error in parse_pack_header";
+
+       case 0:
+               return NULL;
+       }
 }
 
 static const char *pack_lockfile;
@@ -421,11 +426,16 @@ int main(int argc, char **argv)
        if (!enter_repo(dir, 0))
                die("'%s': unable to chdir or not a git archive", dir);
 
-       setup_ident();
-       /* don't die if gecos is empty */
-       ignore_missing_committer_name();
+       if (is_repository_shallow())
+               die("attempt to push into a shallow repository");
+
        git_config(receive_pack_config);
 
+       if (0 <= transfer_unpack_limit)
+               unpack_limit = transfer_unpack_limit;
+       else if (0 <= receive_unpack_limit)
+               unpack_limit = receive_unpack_limit;
+
        write_head_info();
 
        /* EOF */