ident: use a dynamic strbuf in fmt_ident

diff --git a/sha1_name.c b/sha1_name.c
index ff5992acc971ac5a67fa3d4def1e0c064b90519f..c6331136d19c5224078fa78b6e5e794fcc587fe2 100644 (file)
--- a/sha1_name.c
+++ b/sha1_name.c
@@ -241,91 +241,6 @@ static int ambiguous_path(const char *path, int len)
        return slash;
 }
 
-/*
- * *string and *len will only be substituted, and *string returned (for
- * later free()ing) if the string passed in is a magic short-hand form
- * to name a branch.
- */
-static char *substitute_branch_name(const char **string, int *len)
-{
-       struct strbuf buf = STRBUF_INIT;
-       int ret = interpret_branch_name(*string, &buf);
-
-       if (ret == *len) {
-               size_t size;
-               *string = strbuf_detach(&buf, &size);
-               *len = size;
-               return (char *)*string;
-       }
-
-       return NULL;
-}
-
-int dwim_ref(const char *str, int len, unsigned char *sha1, char **ref)
-{
-       char *last_branch = substitute_branch_name(&str, &len);
-       const char **p, *r;
-       int refs_found = 0;
-
-       *ref = NULL;
-       for (p = ref_rev_parse_rules; *p; p++) {
-               char fullref[PATH_MAX];
-               unsigned char sha1_from_ref[20];
-               unsigned char *this_result;
-               int flag;
-
-               this_result = refs_found ? sha1_from_ref : sha1;
-               mksnpath(fullref, sizeof(fullref), *p, len, str);
-               r = resolve_ref(fullref, this_result, 1, &flag);
-               if (r) {
-                       if (!refs_found++)
-                               *ref = xstrdup(r);
-                       if (!warn_ambiguous_refs)
-                               break;
-               } else if ((flag & REF_ISSYMREF) && strcmp(fullref, "HEAD"))
-                       warning("ignoring dangling symref %s.", fullref);
-       }
-       free(last_branch);
-       return refs_found;
-}
-
-int dwim_log(const char *str, int len, unsigned char *sha1, char **log)
-{
-       char *last_branch = substitute_branch_name(&str, &len);
-       const char **p;
-       int logs_found = 0;
-
-       *log = NULL;
-       for (p = ref_rev_parse_rules; *p; p++) {
-               struct stat st;
-               unsigned char hash[20];
-               char path[PATH_MAX];
-               const char *ref, *it;
-
-               mksnpath(path, sizeof(path), *p, len, str);
-               ref = resolve_ref(path, hash, 1, NULL);
-               if (!ref)
-                       continue;
-               if (!stat(git_path("logs/%s", path), &st) &&
-                   S_ISREG(st.st_mode))
-                       it = path;
-               else if (strcmp(ref, path) &&
-                        !stat(git_path("logs/%s", ref), &st) &&
-                        S_ISREG(st.st_mode))
-                       it = ref;
-               else
-                       continue;
-               if (!logs_found++) {
-                       *log = xstrdup(it);
-                       hashcpy(sha1, hash);
-               }
-               if (!warn_ambiguous_refs)
-                       break;
-       }
-       free(last_branch);
-       return logs_found;
-}
-
 static inline int upstream_mark(const char *string, int len)
 {
        const char *suffix[] = { "@{upstream}", "@{u}" };
@@ -501,12 +416,6 @@ struct object *peel_to_type(const char *name, int namelen,
 {
        if (name && !namelen)
                namelen = strlen(name);
-       if (!o) {
-               unsigned char sha1[20];
-               if (get_sha1_1(name, namelen, sha1))
-                       return NULL;
-               o = parse_object(sha1);
-       }
        while (1) {
                if (!o || (!o->parsed && !parse_object(o->sha1)))
                        return NULL;
@@ -947,10 +856,22 @@ int interpret_branch_name(const char *name, struct strbuf *buf)
        len = cp + tmp_len - name;
        cp = xstrndup(name, cp - name);
        upstream = branch_get(*cp ? cp : NULL);
-       if (!upstream
-           || !upstream->merge
-           || !upstream->merge[0]->dst)
-               return error("No upstream branch found for '%s'", cp);
+       /*
+        * Upstream can be NULL only if cp refers to HEAD and HEAD
+        * points to something different than a branch.
+        */
+       if (!upstream)
+               return error(_("HEAD does not point to a branch"));
+       if (!upstream->merge || !upstream->merge[0]->dst) {
+               if (!ref_exists(upstream->refname))
+                       return error(_("No such branch: '%s'"), cp);
+               if (!upstream->merge)
+                       return error(_("No upstream configured for branch '%s'"),
+                                    upstream->name);
+               return error(
+                       _("Upstream branch '%s' not stored as a remote-tracking branch"),
+                       upstream->merge[0]->src);
+       }
        free(cp);
        cp = shorten_unambiguous_ref(upstream->merge[0]->dst, 0);
        strbuf_reset(buf);
@@ -972,9 +893,9 @@ int strbuf_check_branch_ref(struct strbuf *sb, const char *name)
 {
        strbuf_branchname(sb, name);
        if (name[0] == '-')
-               return CHECK_REF_FORMAT_ERROR;
+               return -1;
        strbuf_splice(sb, 0, 0, "refs/heads/", 11);
-       return check_ref_format(sb->buf);
+       return check_refname_format(sb->buf, 0);
 }
 
 /*