blame: default to HEAD in a bare repo when no start commit is given

diff --git a/builtin/blame.c b/builtin/blame.c
index 06a7163ffe269cd43dc783c81ca6ac71b91b3614..8f66eb478606ce468244cd195507bd4c7f2c748f 100644 (file)
--- a/builtin/blame.c
+++ b/builtin/blame.c
@@ -27,6 +27,7 @@
 #include "object-store.h"
 #include "blame.h"
 #include "string-list.h"
+#include "refs.h"
 
 static char blame_usage[] = N_("git blame [<options>] [<rev-opts>] [<rev>] [--] <file>");
 
@@ -850,6 +851,8 @@ int cmd_blame(int argc, const char **argv, const char *prefix)
                case PARSE_OPT_HELP:
                case PARSE_OPT_ERROR:
                        exit(129);
+               case PARSE_OPT_COMPLETE:
+                       exit(0);
                case PARSE_OPT_DONE:
                        if (ctx.argv[0])
                                dashdash_pos = ctx.cpidx;
@@ -923,6 +926,10 @@ int cmd_blame(int argc, const char **argv, const char *prefix)
                 */
                blame_date_width = utf8_strwidth(_("4 years, 11 months ago")) + 1; /* add the null */
                break;
+       case DATE_HUMAN:
+               /* If the year is shown, no time is shown */
+               blame_date_width = sizeof("Thu Oct 19 16:00");
+               break;
        case DATE_NORMAL:
                blame_date_width = sizeof("Thu Oct 19 16:00:04 2006 -0700");
                break;
@@ -987,6 +994,18 @@ int cmd_blame(int argc, const char **argv, const char *prefix)
 
        revs.disable_stdin = 1;
        setup_revisions(argc, argv, &revs, NULL);
+       if (!revs.pending.nr && is_bare_repository()) {
+               struct commit *head_commit;
+               struct object_id head_oid;
+
+               if (!resolve_ref_unsafe("HEAD", RESOLVE_REF_READING,
+                                       &head_oid, NULL) ||
+                   !(head_commit = lookup_commit_reference_gently(revs.repo,
+                                                            &head_oid, 1)))
+                       die("no such ref: HEAD");
+
+               add_pending_object(&revs, &head_commit->object, "HEAD");
+       }
 
        init_scoreboard(&sb);
        sb.revs = &revs;
@@ -1005,7 +1024,8 @@ int cmd_blame(int argc, const char **argv, const char *prefix)
                long bottom, top;
                if (parse_range_arg(range_list.items[range_i].string,
                                    nth_line_cb, &sb, lno, anchor,
-                                   &bottom, &top, sb.path, &the_index))
+                                   &bottom, &top, sb.path,
+                                   the_repository->index))
                        usage(blame_usage);
                if ((!lno && (top || bottom)) || lno < bottom)
                        die(Q_("file %s has only %lu line",