do not write null sha1s to on-disk index
[gitweb.git] / remote.c
index 6ececc4a7703f6d54caf919b1162ed454b45a47e..af597b3a625824d05196c8ed4754fb4020026cc2 100644 (file)
--- a/remote.c
+++ b/remote.c
@@ -482,7 +482,7 @@ static void read_config(void)
                return;
        default_remote_name = xstrdup("origin");
        current_branch = NULL;
-       head_ref = resolve_ref("HEAD", sha1, 0, &flag);
+       head_ref = resolve_ref_unsafe("HEAD", sha1, 0, &flag);
        if (head_ref && (flag & REF_ISSYMREF) &&
            !prefixcmp(head_ref, "refs/heads/")) {
                current_branch =
@@ -492,23 +492,6 @@ static void read_config(void)
        alias_all_urls();
 }
 
-/*
- * We need to make sure the remote-tracking branches are well formed, but a
- * wildcard refspec in "struct refspec" must have a trailing slash. We
- * temporarily drop the trailing '/' while calling check_ref_format(),
- * and put it back.  The caller knows that a CHECK_REF_FORMAT_ONELEVEL
- * error return is Ok for a wildcard refspec.
- */
-static int verify_refname(char *name, int is_glob)
-{
-       int result;
-
-       result = check_ref_format(name);
-       if (is_glob && result == CHECK_REF_FORMAT_WILDCARD)
-               result = CHECK_REF_FORMAT_OK;
-       return result;
-}
-
 /*
  * This function frees a refspec array.
  * Warning: code paths should be checked to ensure that the src
@@ -532,13 +515,13 @@ static void free_refspecs(struct refspec *refspec, int nr_refspec)
 static struct refspec *parse_refspec_internal(int nr_refspec, const char **refspec, int fetch, int verify)
 {
        int i;
-       int st;
        struct refspec *rs = xcalloc(sizeof(*rs), nr_refspec);
 
        for (i = 0; i < nr_refspec; i++) {
                size_t llen;
                int is_glob;
                const char *lhs, *rhs;
+               int flags;
 
                is_glob = 0;
 
@@ -576,6 +559,7 @@ static struct refspec *parse_refspec_internal(int nr_refspec, const char **refsp
 
                rs[i].pattern = is_glob;
                rs[i].src = xstrndup(lhs, llen);
+               flags = REFNAME_ALLOW_ONELEVEL | (is_glob ? REFNAME_REFSPEC_PATTERN : 0);
 
                if (fetch) {
                        /*
@@ -585,26 +569,20 @@ static struct refspec *parse_refspec_internal(int nr_refspec, const char **refsp
                         */
                        if (!*rs[i].src)
                                ; /* empty is ok */
-                       else {
-                               st = verify_refname(rs[i].src, is_glob);
-                               if (st && st != CHECK_REF_FORMAT_ONELEVEL)
-                                       goto invalid;
-                       }
+                       else if (check_refname_format(rs[i].src, flags))
+                               goto invalid;
                        /*
                         * RHS
                         * - missing is ok, and is same as empty.
                         * - empty is ok; it means not to store.
                         * - otherwise it must be a valid looking ref.
                         */
-                       if (!rs[i].dst) {
+                       if (!rs[i].dst)
                                ; /* ok */
-                       } else if (!*rs[i].dst) {
+                       else if (!*rs[i].dst)
                                ; /* ok */
-                       } else {
-                               st = verify_refname(rs[i].dst, is_glob);
-                               if (st && st != CHECK_REF_FORMAT_ONELEVEL)
-                                       goto invalid;
-                       }
+                       else if (check_refname_format(rs[i].dst, flags))
+                               goto invalid;
                } else {
                        /*
                         * LHS
@@ -616,8 +594,7 @@ static struct refspec *parse_refspec_internal(int nr_refspec, const char **refsp
                        if (!*rs[i].src)
                                ; /* empty is ok */
                        else if (is_glob) {
-                               st = verify_refname(rs[i].src, is_glob);
-                               if (st && st != CHECK_REF_FORMAT_ONELEVEL)
+                               if (check_refname_format(rs[i].src, flags))
                                        goto invalid;
                        }
                        else
@@ -630,14 +607,12 @@ static struct refspec *parse_refspec_internal(int nr_refspec, const char **refsp
                         * - otherwise it must be a valid looking ref.
                         */
                        if (!rs[i].dst) {
-                               st = verify_refname(rs[i].src, is_glob);
-                               if (st && st != CHECK_REF_FORMAT_ONELEVEL)
+                               if (check_refname_format(rs[i].src, flags))
                                        goto invalid;
                        } else if (!*rs[i].dst) {
                                goto invalid;
                        } else {
-                               st = verify_refname(rs[i].dst, is_glob);
-                               if (st && st != CHECK_REF_FORMAT_ONELEVEL)
+                               if (check_refname_format(rs[i].dst, flags))
                                        goto invalid;
                        }
                }
@@ -1032,7 +1007,7 @@ static char *guess_ref(const char *name, struct ref *peer)
        struct strbuf buf = STRBUF_INIT;
        unsigned char sha1[20];
 
-       const char *r = resolve_ref(peer->name, sha1, 1, NULL);
+       const char *r = resolve_ref_unsafe(peer->name, sha1, 1, NULL);
        if (!r)
                return NULL;
 
@@ -1083,7 +1058,7 @@ static int match_explicit(struct ref *src, struct ref *dst,
                unsigned char sha1[20];
                int flag;
 
-               dst_value = resolve_ref(matched_src->name, sha1, 1, &flag);
+               dst_value = resolve_ref_unsafe(matched_src->name, sha1, 1, &flag);
                if (!dst_value ||
                    ((flag & REF_ISSYMREF) &&
                     prefixcmp(dst_value, "refs/heads/")))
@@ -1167,12 +1142,15 @@ static struct ref **tail_ref(struct ref **head)
 }
 
 /*
- * Note. This is used only by "push"; refspec matching rules for
- * push and fetch are subtly different, so do not try to reuse it
- * without thinking.
+ * Given the set of refs the local repository has, the set of refs the
+ * remote repository has, and the refspec used for push, determine
+ * what remote refs we will update and with what value by setting
+ * peer_ref (which object is being pushed) and force (if the push is
+ * forced) in elements of "dst". The function may add new elements to
+ * dst (e.g. pushing to a new branch, done in match_explicit_refs).
  */
-int match_refs(struct ref *src, struct ref **dst,
-              int nr_refspec, const char **refspec, int flags)
+int match_push_refs(struct ref *src, struct ref **dst,
+                   int nr_refspec, const char **refspec, int flags)
 {
        struct refspec *rs;
        int send_all = flags & MATCH_REFS_ALL;
@@ -1424,8 +1402,8 @@ int get_fetch_map(const struct ref *remote_refs,
 
        for (rmp = &ref_map; *rmp; ) {
                if ((*rmp)->peer_ref) {
-                       int st = check_ref_format((*rmp)->peer_ref->name + 5);
-                       if (st && st != CHECK_REF_FORMAT_ONELEVEL) {
+                       if (check_refname_format((*rmp)->peer_ref->name + 5,
+                               REFNAME_ALLOW_ONELEVEL)) {
                                struct ref *ignore = *rmp;
                                error("* Ignoring funny ref '%s' locally",
                                      (*rmp)->peer_ref->name);
@@ -1529,13 +1507,13 @@ int stat_tracking_info(struct branch *branch, int *num_ours, int *num_theirs)
         * nothing to report.
         */
        base = branch->merge[0]->dst;
-       if (!resolve_ref(base, sha1, 1, NULL))
+       if (read_ref(base, sha1))
                return 0;
        theirs = lookup_commit_reference(sha1);
        if (!theirs)
                return 0;
 
-       if (!resolve_ref(branch->refname, sha1, 1, NULL))
+       if (read_ref(branch->refname, sha1))
                return 0;
        ours = lookup_commit_reference(sha1);
        if (!ours)
@@ -1594,19 +1572,29 @@ int format_tracking_info(struct branch *branch, struct strbuf *sb)
        base = branch->merge[0]->dst;
        base = shorten_unambiguous_ref(base, 0);
        if (!num_theirs)
-               strbuf_addf(sb, "Your branch is ahead of '%s' "
-                           "by %d commit%s.\n",
-                           base, num_ours, (num_ours == 1) ? "" : "s");
+               strbuf_addf(sb,
+                       Q_("Your branch is ahead of '%s' by %d commit.\n",
+                          "Your branch is ahead of '%s' by %d commits.\n",
+                          num_ours),
+                       base, num_ours);
        else if (!num_ours)
-               strbuf_addf(sb, "Your branch is behind '%s' "
-                           "by %d commit%s, "
-                           "and can be fast-forwarded.\n",
-                           base, num_theirs, (num_theirs == 1) ? "" : "s");
+               strbuf_addf(sb,
+                       Q_("Your branch is behind '%s' by %d commit, "
+                              "and can be fast-forwarded.\n",
+                          "Your branch is behind '%s' by %d commits, "
+                              "and can be fast-forwarded.\n",
+                          num_theirs),
+                       base, num_theirs);
        else
-               strbuf_addf(sb, "Your branch and '%s' have diverged,\n"
-                           "and have %d and %d different commit(s) each, "
-                           "respectively.\n",
-                           base, num_ours, num_theirs);
+               strbuf_addf(sb,
+                       Q_("Your branch and '%s' have diverged,\n"
+                              "and have %d and %d different commit each, "
+                              "respectively.\n",
+                          "Your branch and '%s' have diverged,\n"
+                              "and have %d and %d different commits each, "
+                              "respectively.\n",
+                          num_theirs),
+                       base, num_ours, num_theirs);
        return 1;
 }
 
@@ -1617,7 +1605,7 @@ static int one_local_ref(const char *refname, const unsigned char *sha1, int fla
        int len;
 
        /* we already know it starts with refs/ to get here */
-       if (check_ref_format(refname + 5))
+       if (check_refname_format(refname + 5, 0))
                return 0;
 
        len = strlen(refname) + 1;