X-Git-Url: https://git.verplant.org/?a=blobdiff_plain;f=show-branch.c;h=8429c171cf6e6ddbac2f1a95da4a05f7ce8d34a3;hb=79a9d8ea0d88a3667ad19be8e705405ab5d896f1;hp=262acf5cefc8053a012b2251bfbfb86177f80a90;hpb=c9d023b2a63ef233c63e1b8f95aabac74362719d;p=git.git

diff --git a/show-branch.c b/show-branch.c
index 262acf5c..8429c171 100644
--- a/show-branch.c
+++ b/show-branch.c
@@ -138,7 +138,20 @@ static void name_commits(struct commit_list *list,
 				nth++;
 				if (p->object.util)
 					continue;
-				sprintf(newname, "%s^%d", n->head_name, nth);
+				switch (n->generation) {
+				case 0:
+					sprintf(newname, "%s^%d",
+						n->head_name, nth);
+					break;
+				case 1:
+					sprintf(newname, "%s^^%d",
+						n->head_name, nth);
+					break;
+				default:
+					sprintf(newname, "%s~%d^%d",
+						n->head_name, n->generation,
+						nth);
+				}
 				name_commit(p, strdup(newname), 0);
 				i++;
 				name_first_parent_chain(p);
@@ -196,8 +209,11 @@ static void show_one_commit(struct commit *commit)
 {
 	char pretty[128], *cp;
 	struct commit_name *name = commit->object.util;
-	pretty_print_commit(CMIT_FMT_ONELINE, commit->buffer, ~0,
-			    pretty, sizeof(pretty));
+	if (commit->object.parsed)
+		pretty_print_commit(CMIT_FMT_ONELINE, commit->buffer, ~0,
+				    pretty, sizeof(pretty));
+	else
+		strcpy(pretty, "(unavailable)");
 	if (!strncmp(pretty, "[PATCH] ", 8))
 		cp = pretty + 8;
 	else
@@ -333,6 +349,7 @@ int main(int ac, char **av)
 	int all_heads = 0, all_tags = 0;
 	int all_mask, all_revs, shown_merge_point;
 	char head_path[128];
+	const char *head_path_p;
 	int head_path_len;
 	unsigned char head_sha1[20];
 	int merge_base = 0;
@@ -414,11 +431,15 @@ int main(int ac, char **av)
 	if (0 <= extra)
 		join_revs(&list, &seen, num_rev, extra);
 
-	head_path_len = readlink(".git/HEAD", head_path, sizeof(head_path)-1);
-	if ((head_path_len < 0) || get_sha1("HEAD", head_sha1))
+	head_path_p = resolve_ref(git_path("HEAD"), head_sha1, 1);
+	if (head_path_p) {
+		head_path_len = strlen(head_path_p);
+		memcpy(head_path, head_path_p, head_path_len + 1);
+	}
+	else {
+		head_path_len = 0;
 		head_path[0] = 0;
-	else
-		head_path[head_path_len] = 0;
+	}
 
 	if (merge_base)
 		return show_merge_base(seen, num_rev);