[PATCH v2 04/12] pick: move calling check_parent() ouside pick_commit()

@@ -193,6 +193,7 @@ static int revert_or_cherry_pick(int argc, const char **argv)
 	struct strbuf msgbuf;
 	char *reencoded_message = NULL;
 	const char *encoding;
+	struct commit *parent = NULL;
 	int failed;
 
 	git_config(git_default_config, NULL);

@@ -217,7 +218,11 @@ static int revert_or_cherry_pick(int argc, const char **argv)
 					git_commit_encoding, encoding)))
 		commit->buffer = reencoded_message;
 
-	failed = pick_commit(commit, mainline, flags, &msgbuf);
+	failed = check_parent(commit, mainline, flags, &parent);
+	if (failed)
+		return failed;
+
+	failed = pick_commit(commit, parent, flags, &msgbuf);
 	if (failed < 0) {
 		exit(1);
 	} else if (failed > 0) {

@@ -60,7 +60,7 @@ static struct tree *empty_tree(void)
 }
 
 int check_parent(struct commit *commit, int mainline, int flags,
-			struct commit **parent)
+		 struct commit **parent)
 {
 	if (!commit->parents) {
 		if (flags & PICK_REVERSE)

@@ -110,12 +110,12 @@ int check_parent(struct commit *commit, int mainline, int flags,
  * and a positive value after picking,
  * and return 1 if and only if a conflict occurs but no other error.
  */
-int pick_commit(struct commit *pick_commit, int mainline, int flags,
+int pick_commit(struct commit *pick_commit, struct commit *parent, int flags,
 		struct strbuf *msg)
 {
 	unsigned char head[20];
-	struct commit *base, *next, *parent = NULL;
-	int i, index_fd, clean, err;
+	struct commit *base, *next;
+	int i, index_fd, clean;
 	int ret = 0;
 	char *oneline;
 	const char *message;

@@ -139,10 +139,6 @@ int pick_commit(struct commit *pick_commit, int mainline, int flags,
 		return error("Unable to create locked index: %s",
 			     strerror(errno));
 
-	err = check_parent(commit, mainline, flags, &parent);
-	if (err)
-		return err;
-
 	if (!(message = commit->buffer))
 		return error("Cannot get commit message for %s",
 			     sha1_to_hex(commit->object.sha1));

@@ -8,7 +8,7 @@
 #define PICK_ADD_NOTE  2 /* add note about original commit (unless conflict) */
 /* We don't need a PICK_QUIET. This is done by
  *	setenv("GIT_MERGE_VERBOSITY", "0", 1); */
-extern int pick_commit(struct commit *commit, int mainline, int flags, struct strbuf *msg);
+extern int pick_commit(struct commit *commit, struct commit *parent, int flags, struct strbuf *msg);
 extern int check_parent(struct commit *commit, int mainline, int flags, struct commit **parent);
 
 #endif