[PATCH v7 05/14] replay: introduce pick_regular_commit()

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From: Elijah Newren <newren@xxxxxxxxx>

Let's refactor the code to handle a regular commit (a commit that is
neither a root commit nor a merge commit) into a single function instead
of keeping it inside cmd_replay().

This is good for separation of concerns, and this will help further work
in the future to replay merge commits.

Co-authored-by: Christian Couder <chriscool@xxxxxxxxxxxxx>
Signed-off-by: Elijah Newren <newren@xxxxxxxxx>
Signed-off-by: Christian Couder <chriscool@xxxxxxxxxxxxx>
---
 builtin/replay.c | 54 ++++++++++++++++++++++++++++++------------------
 1 file changed, 34 insertions(+), 20 deletions(-)

diff --git a/builtin/replay.c b/builtin/replay.c
index 32dbaaf028..5c4cbd11db 100644
--- a/builtin/replay.c
+++ b/builtin/replay.c
@@ -89,6 +89,35 @@ static struct commit *create_commit(struct tree *tree,
 	return (struct commit *)obj;
 }
 
+static struct commit *pick_regular_commit(struct commit *pickme,
+					  struct commit *last_commit,
+					  struct merge_options *merge_opt,
+					  struct merge_result *result)
+{
+	struct commit *base;
+	struct tree *pickme_tree, *base_tree;
+
+	base = pickme->parents->item;
+
+	pickme_tree = repo_get_commit_tree(the_repository, pickme);
+	base_tree = repo_get_commit_tree(the_repository, base);
+
+	merge_opt->branch2 = short_commit_name(pickme);
+	merge_opt->ancestor = xstrfmt("parent of %s", merge_opt->branch2);
+
+	merge_incore_nonrecursive(merge_opt,
+				  base_tree,
+				  result->tree,
+				  pickme_tree,
+				  result);
+
+	free((char*)merge_opt->ancestor);
+	merge_opt->ancestor = NULL;
+	if (!result->clean)
+		return NULL;
+	return create_commit(result->tree, pickme, last_commit);
+}
+
 int cmd_replay(int argc, const char **argv, const char *prefix)
 {
 	struct commit *onto;
@@ -100,7 +129,7 @@ int cmd_replay(int argc, const char **argv, const char *prefix)
 	struct rev_info revs;
 	struct commit *commit;
 	struct merge_options merge_opt;
-	struct tree *next_tree, *base_tree, *head_tree;
+	struct tree *head_tree;
 	struct merge_result result;
 	struct strbuf reflog_msg = STRBUF_INIT;
 	struct strbuf branch_name = STRBUF_INIT;
@@ -175,7 +204,7 @@ int cmd_replay(int argc, const char **argv, const char *prefix)
 	result.tree = head_tree;
 	last_commit = onto;
 	while ((commit = get_revision(&revs))) {
-		struct commit *base;
+		struct commit *pick;
 
 		fprintf(stderr, "Rebasing %s...\r",
 			oid_to_hex(&commit->object.oid));
@@ -185,26 +214,11 @@ int cmd_replay(int argc, const char **argv, const char *prefix)
 		if (commit->parents->next)
 			die(_("replaying merge commits is not supported yet!"));
 
-		base = commit->parents->item;
-
-		next_tree = repo_get_commit_tree(the_repository, commit);
-		base_tree = repo_get_commit_tree(the_repository, base);
-
-		merge_opt.branch2 = short_commit_name(commit);
-		merge_opt.ancestor = xstrfmt("parent of %s", merge_opt.branch2);
-
-		merge_incore_nonrecursive(&merge_opt,
-					  base_tree,
-					  result.tree,
-					  next_tree,
-					  &result);
-
-		free((char*)merge_opt.ancestor);
-		merge_opt.ancestor = NULL;
-		if (!result.clean)
+		pick = pick_regular_commit(commit, last_commit, &merge_opt, &result);
+		if (!pick)
 			break;
+		last_commit = pick;
 		last_picked_commit = commit;
-		last_commit = create_commit(result.tree, commit, last_commit);
 	}
 
 	merge_finalize(&merge_opt, &result);
-- 
2.43.0.rc1.15.g29556bcc86





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