compat: Add simplified merge sort implementation from glibc
[gitweb.git] / builtin-send-pack.c
index 3f86acb315165c495f121c520c5367583db42d11..8afb1d0bca0635dc22f658455477d9fada231290 100644 (file)
@@ -146,33 +146,67 @@ static void get_local_heads(void)
        for_each_ref(one_local_ref, NULL);
 }
 
-static int receive_status(int in)
+static int receive_status(int in, struct ref *refs)
 {
+       struct ref *hint;
        char line[1000];
        int ret = 0;
        int len = packet_read_line(in, line, sizeof(line));
-       if (len < 10 || memcmp(line, "unpack ", 7)) {
-               fprintf(stderr, "did not receive status back\n");
-               return -1;
-       }
+       if (len < 10 || memcmp(line, "unpack ", 7))
+               return error("did not receive remote status");
        if (memcmp(line, "unpack ok\n", 10)) {
-               fputs(line, stderr);
+               char *p = line + strlen(line) - 1;
+               if (*p == '\n')
+                       *p = '\0';
+               error("unpack failed: %s", line + 7);
                ret = -1;
        }
+       hint = NULL;
        while (1) {
+               char *refname;
+               char *msg;
                len = packet_read_line(in, line, sizeof(line));
                if (!len)
                        break;
                if (len < 3 ||
-                   (memcmp(line, "ok", 2) && memcmp(line, "ng", 2))) {
+                   (memcmp(line, "ok ", 3) && memcmp(line, "ng ", 3))) {
                        fprintf(stderr, "protocol error: %s\n", line);
                        ret = -1;
                        break;
                }
-               if (!memcmp(line, "ok", 2))
+
+               line[strlen(line)-1] = '\0';
+               refname = line + 3;
+               msg = strchr(refname, ' ');
+               if (msg)
+                       *msg++ = '\0';
+
+               /* first try searching at our hint, falling back to all refs */
+               if (hint)
+                       hint = find_ref_by_name(hint, refname);
+               if (!hint)
+                       hint = find_ref_by_name(refs, refname);
+               if (!hint) {
+                       warning("remote reported status on unknown ref: %s",
+                                       refname);
+                       continue;
+               }
+               if (hint->status != REF_STATUS_EXPECTING_REPORT) {
+                       warning("remote reported status on unexpected ref: %s",
+                                       refname);
                        continue;
-               fputs(line, stderr);
-               ret = -1;
+               }
+
+               if (line[0] == 'o' && line[1] == 'k')
+                       hint->status = REF_STATUS_OK;
+               else {
+                       hint->status = REF_STATUS_REMOTE_REJECT;
+                       ret = -1;
+               }
+               if (msg)
+                       hint->remote_status = xstrdup(msg);
+               /* start our next search from the next ref */
+               hint = hint->next;
        }
        return ret;
 }
@@ -264,43 +298,80 @@ static void print_ok_ref_status(struct ref *ref)
        }
 }
 
+static int print_one_push_status(struct ref *ref, const char *dest, int count)
+{
+       if (!count)
+               fprintf(stderr, "To %s\n", dest);
+
+       switch(ref->status) {
+       case REF_STATUS_NONE:
+               print_ref_status('X', "[no match]", ref, NULL, NULL);
+               break;
+       case REF_STATUS_REJECT_NODELETE:
+               print_ref_status('!', "[rejected]", ref, NULL,
+                               "remote does not support deleting refs");
+               break;
+       case REF_STATUS_UPTODATE:
+               print_ref_status('=', "[up to date]", ref,
+                               ref->peer_ref, NULL);
+               break;
+       case REF_STATUS_REJECT_NONFASTFORWARD:
+               print_ref_status('!', "[rejected]", ref, ref->peer_ref,
+                               "non-fast forward");
+               break;
+       case REF_STATUS_REMOTE_REJECT:
+               print_ref_status('!', "[remote rejected]", ref,
+                               ref->deletion ? NULL : ref->peer_ref,
+                               ref->remote_status);
+               break;
+       case REF_STATUS_EXPECTING_REPORT:
+               print_ref_status('!', "[remote failure]", ref,
+                               ref->deletion ? NULL : ref->peer_ref,
+                               "remote failed to report status");
+               break;
+       case REF_STATUS_OK:
+               print_ok_ref_status(ref);
+               break;
+       }
+
+       return 1;
+}
+
 static void print_push_status(const char *dest, struct ref *refs)
 {
        struct ref *ref;
-       int shown_dest = 0;
+       int n = 0;
 
-       for (ref = refs; ref; ref = ref->next) {
-               if (!ref->status)
-                       continue;
-               if (ref->status == REF_STATUS_UPTODATE && !args.verbose)
-                       continue;
+       if (args.verbose) {
+               for (ref = refs; ref; ref = ref->next)
+                       if (ref->status == REF_STATUS_UPTODATE)
+                               n += print_one_push_status(ref, dest, n);
+       }
 
-               if (!shown_dest) {
-                       fprintf(stderr, "To %s\n", dest);
-                       shown_dest = 1;
-               }
+       for (ref = refs; ref; ref = ref->next)
+               if (ref->status == REF_STATUS_OK)
+                       n += print_one_push_status(ref, dest, n);
 
+       for (ref = refs; ref; ref = ref->next) {
+               if (ref->status != REF_STATUS_NONE &&
+                   ref->status != REF_STATUS_UPTODATE &&
+                   ref->status != REF_STATUS_OK)
+                       n += print_one_push_status(ref, dest, n);
+       }
+}
+
+static int refs_pushed(struct ref *ref)
+{
+       for (; ref; ref = ref->next) {
                switch(ref->status) {
                case REF_STATUS_NONE:
-                       print_ref_status('X', "[no match]", ref, NULL, NULL);
-                       break;
-               case REF_STATUS_REJECT_NODELETE:
-                       print_ref_status('!', "[rejected]", ref, NULL,
-                                       "remote does not support deleting refs");
-                       break;
                case REF_STATUS_UPTODATE:
-                       print_ref_status('=', "[up to date]", ref,
-                                       ref->peer_ref, NULL);
-                       break;
-               case REF_STATUS_REJECT_NONFASTFORWARD:
-                       print_ref_status('!', "[rejected]", ref, ref->peer_ref,
-                                       "non-fast forward");
-                       break;
-               case REF_STATUS_OK:
-                       print_ok_ref_status(ref);
                        break;
+               default:
+                       return 1;
                }
        }
+       return 0;
 }
 
 static int do_send_pack(int in, int out, struct remote *remote, const char *dest, int nr_refspec, const char **refspec)
@@ -311,6 +382,7 @@ static int do_send_pack(int in, int out, struct remote *remote, const char *dest
        int allow_deleting_refs = 0;
        int expect_status_report = 0;
        int flags = MATCH_REFS_NONE;
+       int ret;
 
        if (args.send_all)
                flags |= MATCH_REFS_ALL;
@@ -400,7 +472,6 @@ static int do_send_pack(int in, int out, struct remote *remote, const char *dest
                hashcpy(ref->new_sha1, new_sha1);
                if (!ref->deletion)
                        new_refs++;
-               ref->status = REF_STATUS_OK;
 
                if (!args.dry_run) {
                        char *old_hex = sha1_to_hex(ref->old_sha1);
@@ -417,6 +488,9 @@ static int do_send_pack(int in, int out, struct remote *remote, const char *dest
                                packet_write(out, "%s %s %s",
                                        old_hex, new_hex, ref->name);
                }
+               ref->status = expect_status_report ?
+                       REF_STATUS_EXPECTING_REPORT :
+                       REF_STATUS_OK;
        }
 
        packet_flush(out);
@@ -428,20 +502,22 @@ static int do_send_pack(int in, int out, struct remote *remote, const char *dest
        }
        close(out);
 
-       print_push_status(dest, remote_refs);
+       if (expect_status_report)
+               ret = receive_status(in, remote_refs);
+       else
+               ret = 0;
 
-       if (expect_status_report) {
-               if (receive_status(in))
-                       return -1;
-       }
+       print_push_status(dest, remote_refs);
 
        if (!args.dry_run && remote) {
                for (ref = remote_refs; ref; ref = ref->next)
                        update_tracking_ref(remote, ref);
        }
 
-       if (!new_refs)
+       if (!refs_pushed(remote_refs))
                fprintf(stderr, "Everything up-to-date\n");
+       if (ret < 0)
+               return ret;
        for (ref = remote_refs; ref; ref = ref->next) {
                switch (ref->status) {
                case REF_STATUS_NONE:
@@ -465,10 +541,12 @@ static void verify_remote_names(int nr_heads, const char **heads)
                remote = remote ? (remote + 1) : heads[i];
                switch (check_ref_format(remote)) {
                case 0: /* ok */
-               case -2: /* ok but a single level -- that is fine for
-                         * a match pattern.
-                         */
-               case -3: /* ok but ends with a pattern-match character */
+               case CHECK_REF_FORMAT_ONELEVEL:
+                       /* ok but a single level -- that is fine for
+                        * a match pattern.
+                        */
+               case CHECK_REF_FORMAT_WILDCARD:
+                       /* ok but ends with a pattern-match character */
                        continue;
                }
                die("remote part of refspec is not a valid name in %s",