X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=builtin-commit.c;h=93ca49635731942c72cb52b27b1a6ba53becd1ca;hb=1689c5de8730ea334535337a341db3c7a21ad002;hp=2c33af276671ff0ba4bffee437a03e7fc2a7fae2;hpb=ce6e5ff435f325769dd28980cf3c8b1625f194f2;p=git.git

diff --git a/builtin-commit.c b/builtin-commit.c
index 2c33af276..93ca49635 100644
--- a/builtin-commit.c
+++ b/builtin-commit.c
@@ -320,7 +320,9 @@ static char *prepare_index(int argc, const char **argv, const char *prefix)
 		die("unable to write new_index file");
 
 	fd = hold_lock_file_for_update(&false_lock,
-				       git_path("next-index-%"PRIuMAX, (uintmax_t) getpid()), 1);
+				       git_path("next-index-%"PRIuMAX,
+						(uintmax_t) getpid()),
+				       LOCK_DIE_ON_ERROR);
 
 	create_base_index();
 	add_remove_files(&partial);
@@ -943,6 +945,8 @@ int cmd_commit(int argc, const char **argv, const char *prefix)
 	unsigned char commit_sha1[20];
 	struct ref_lock *ref_lock;
 	struct commit_list *parents = NULL, **pptr = &parents;
+	struct stat statbuf;
+	int allow_fast_forward = 1;
 
 	git_config(git_commit_config, NULL);
 
@@ -989,13 +993,22 @@ int cmd_commit(int argc, const char **argv, const char *prefix)
 		}
 		fclose(fp);
 		strbuf_release(&m);
+		if (!stat(git_path("MERGE_MODE"), &statbuf)) {
+			if (strbuf_read_file(&sb, git_path("MERGE_MODE"), 0) < 0)
+				die("could not read MERGE_MODE: %s",
+						strerror(errno));
+			if (!strcmp(sb.buf, "no-ff"))
+				allow_fast_forward = 0;
+		}
+		if (allow_fast_forward)
+			parents = reduce_heads(parents);
 	} else {
 		reflog_msg = "commit";
 		pptr = &commit_list_insert(lookup_commit(head_sha1), pptr)->next;
 	}
-	parents = reduce_heads(parents);
 
 	/* Finally, get the commit message */
+	strbuf_reset(&sb);
 	if (strbuf_read_file(&sb, git_path(commit_editmsg), 0) < 0) {
 		rollback_index_files();
 		die("could not read commit message");
@@ -1044,6 +1057,7 @@ int cmd_commit(int argc, const char **argv, const char *prefix)
 
 	unlink(git_path("MERGE_HEAD"));
 	unlink(git_path("MERGE_MSG"));
+	unlink(git_path("MERGE_MODE"));
 	unlink(git_path("SQUASH_MSG"));
 
 	if (commit_index_files())