merge-ort: add a clear_internal_opts helper

Move most of merge_finalize() into a new helper function,
clear_internal_opts().  This is a step to facilitate recursive merges,
as well as some future optimizations.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 24 insertions, 16 deletions

diff --git a/merge-ort.c b/merge-ort.c
index ba3ce8d..ced6be1 100644
--- a/merge-ort.c
+++ b/merge-ort.c
@@ -221,6 +221,29 @@ static void free_strmap_strings(struct strmap *map)
 	}
 }
 
+static void clear_internal_opts(struct merge_options_internal *opti,
+				int reinitialize)
+{
+	assert(!reinitialize);
+
+	/*
+	 * We marked opti->paths with strdup_strings = 0, so that we
+	 * wouldn't have to make another copy of the fullpath created by
+	 * make_traverse_path from setup_path_info().  But, now that we've
+	 * used it and have no other references to these strings, it is time
+	 * to deallocate them.
+	 */
+	free_strmap_strings(&opti->paths);
+	strmap_clear(&opti->paths, 1);
+
+	/*
+	 * All keys and values in opti->conflicted are a subset of those in
+	 * opti->paths.  We don't want to deallocate anything twice, so we
+	 * don't free the keys and we pass 0 for free_values.
+	 */
+	strmap_clear(&opti->conflicted, 0);
+}
+
 static int err(struct merge_options *opt, const char *err, ...)
 {
 	va_list params;
@@ -1169,22 +1192,7 @@ void merge_finalize(struct merge_options *opt,
 
 	assert(opt->priv == NULL);
 
-	/*
-	 * We marked opti->paths with strdup_strings = 0, so that we
-	 * wouldn't have to make another copy of the fullpath created by
-	 * make_traverse_path from setup_path_info().  But, now that we've
-	 * used it and have no other references to these strings, it is time
-	 * to deallocate them.
-	 */
-	free_strmap_strings(&opti->paths);
-	strmap_clear(&opti->paths, 1);
-
-	/*
-	 * All keys and values in opti->conflicted are a subset of those in
-	 * opti->paths.  We don't want to deallocate anything twice, so we
-	 * don't free the keys and we pass 0 for free_values.
-	 */
-	strmap_clear(&opti->conflicted, 0);
+	clear_internal_opts(opti, 0);
 	FREE_AND_NULL(opti);
 }