Merge branch 'jc/revision-range-unpeel' into maint

diff --git a/builtin/show-ref.c b/builtin/show-ref.c
index 4eb016d6e53628f19d51a50aeb074bf424154026..87806ad5b088f5c905757a4fab3c3499ec20a308 100644 (file)
--- a/builtin/show-ref.c
+++ b/builtin/show-ref.c
@@ -28,10 +28,12 @@ static void show_one(const char *refname, const unsigned char *sha1)
 
 static int show_ref(const char *refname, const unsigned char *sha1, int flag, void *cbdata)
 {
-       struct object *obj;
        const char *hex;
        unsigned char peeled[20];
 
+       if (show_head && !strcmp(refname, "HEAD"))
+               goto match;
+
        if (tags_only || heads_only) {
                int match;
 
@@ -79,25 +81,9 @@ static int show_ref(const char *refname, const unsigned char *sha1, int flag, vo
        if (!deref_tags)
                return 0;
 
-       if ((flag & REF_ISPACKED) && !peel_ref(refname, peeled)) {
-               if (!is_null_sha1(peeled)) {
-                       hex = find_unique_abbrev(peeled, abbrev);
-                       printf("%s %s^{}\n", hex, refname);
-               }
-       }
-       else {
-               obj = parse_object(sha1);
-               if (!obj)
-                       die("git show-ref: bad ref %s (%s)", refname,
-                           sha1_to_hex(sha1));
-               if (obj->type == OBJ_TAG) {
-                       obj = deref_tag(obj, refname, 0);
-                       if (!obj)
-                               die("git show-ref: bad tag at ref %s (%s)", refname,
-                                   sha1_to_hex(sha1));
-                       hex = find_unique_abbrev(obj->sha1, abbrev);
-                       printf("%s %s^{}\n", hex, refname);
-               }
+       if (!peel_ref(refname, peeled)) {
+               hex = find_unique_abbrev(peeled, abbrev);
+               printf("%s %s^{}\n", hex, refname);
        }
        return 0;
 }
@@ -120,7 +106,7 @@ static int add_existing(const char *refname, const unsigned char *sha1, int flag
  */
 static int exclude_existing(const char *match)
 {
-       static struct string_list existing_refs = STRING_LIST_INIT_NODUP;
+       static struct string_list existing_refs = STRING_LIST_INIT_DUP;
        char buf[1024];
        int matchlen = match ? strlen(match) : 0;
 
@@ -184,9 +170,10 @@ static const struct option show_ref_options[] = {
        OPT_BOOLEAN(0, "verify", &verify, N_("stricter reference checking, "
                    "requires exact ref path")),
        { OPTION_BOOLEAN, 'h', NULL, &show_head, NULL,
-         N_("show the HEAD reference"),
+         N_("show the HEAD reference, even if it would be filtered out"),
          PARSE_OPT_NOARG | PARSE_OPT_HIDDEN },
-       OPT_BOOLEAN(0, "head", &show_head, N_("show the HEAD reference")),
+       OPT_BOOLEAN(0, "head", &show_head,
+         N_("show the HEAD reference, even if it would be filtered out")),
        OPT_BOOLEAN('d', "dereference", &deref_tags,
                    N_("dereference tags into object IDs")),
        { OPTION_CALLBACK, 's', "hash", &abbrev, N_("n"),