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[PATCH v4 21/34] merge-recursive: make a helper function for cleanup for handle_renames




In anticipation of more involved cleanup to come, make a helper function
for doing the cleanup at the end of handle_renames.  Rename the already
existing cleanup_rename[s]() to final_cleanup_rename[s](), name the new
helper initial_cleanup_rename(), and leave the big comment in the code
about why we can't do all the cleanup at once.

Signed-off-by: Elijah Newren <newren@xxxxxxxxx>
---
 merge-recursive.c | 23 +++++++++++++----------
 1 file changed, 13 insertions(+), 10 deletions(-)

diff --git a/merge-recursive.c b/merge-recursive.c
index 0cb27c66e2..c5932d5c57 100644
--- a/merge-recursive.c
+++ b/merge-recursive.c
@@ -1695,6 +1695,12 @@ struct rename_info {
 	struct string_list *merge_renames;
 };
 
+static void initial_cleanup_rename(struct diff_queue_struct *pairs)
+{
+	free(pairs->queue);
+	free(pairs);
+}
+
 static int handle_renames(struct merge_options *o,
 			  struct tree *common,
 			  struct tree *head,
@@ -1725,16 +1731,13 @@ static int handle_renames(struct merge_options *o,
 	 * data structures are still needed and referenced in
 	 * process_entry().  But there are a few things we can free now.
 	 */
-
-	free(head_pairs->queue);
-	free(head_pairs);
-	free(merge_pairs->queue);
-	free(merge_pairs);
+	initial_cleanup_rename(head_pairs);
+	initial_cleanup_rename(merge_pairs);
 
 	return clean;
 }
 
-static void cleanup_rename(struct string_list *rename)
+static void final_cleanup_rename(struct string_list *rename)
 {
 	const struct rename *re;
 	int i;
@@ -1750,10 +1753,10 @@ static void cleanup_rename(struct string_list *rename)
 	free(rename);
 }
 
-static void cleanup_renames(struct rename_info *re_info)
+static void final_cleanup_renames(struct rename_info *re_info)
 {
-	cleanup_rename(re_info->head_renames);
-	cleanup_rename(re_info->merge_renames);
+	final_cleanup_rename(re_info->head_renames);
+	final_cleanup_rename(re_info->merge_renames);
 }
 
 static struct object_id *stage_oid(const struct object_id *oid, unsigned mode)
@@ -2149,7 +2152,7 @@ int merge_trees(struct merge_options *o,
 		}
 
 cleanup:
-		cleanup_renames(&re_info);
+		final_cleanup_renames(&re_info);
 
 		string_list_clear(entries, 1);
 		free(entries);
-- 
2.15.0.408.g850bc54b15