do not write null sha1s to on-disk index

diff --git a/remote.c b/remote.c
index e2ef99114478c49863809ea5cef46392a5a8c0e9..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 =
@@ -1007,7 +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;
 
@@ -1058,7 +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/")))
@@ -1507,13 +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)
@@ -1572,19 +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;
 }