}
/*
- * Get information of all renames which occurred between 'o_tree' and
- * 'tree'. We need the three trees in the merge ('o_tree', 'a_tree' and
- * 'b_tree') to be able to associate the correct cache entries with
- * the rename information. 'tree' is always equal to either a_tree or b_tree.
+ * Get the diff_filepairs changed between o_tree and tree.
*/
-static struct string_list *get_renames(struct merge_options *o,
- struct tree *tree,
- struct tree *o_tree,
- struct tree *a_tree,
- struct tree *b_tree,
- struct string_list *entries)
+static struct diff_queue_struct *get_diffpairs(struct merge_options *o,
+ struct tree *o_tree,
+ struct tree *tree)
{
- int i;
- struct string_list *renames;
+ struct diff_queue_struct *ret;
struct diff_options opts;
- renames = xcalloc(1, sizeof(struct string_list));
- if (!o->detect_rename)
- return renames;
-
diff_setup(&opts);
opts.flags.recursive = 1;
opts.flags.rename_empty = 0;
diffcore_std(&opts);
if (opts.needed_rename_limit > o->needed_rename_limit)
o->needed_rename_limit = opts.needed_rename_limit;
- for (i = 0; i < diff_queued_diff.nr; ++i) {
+
+ ret = xmalloc(sizeof(*ret));
+ *ret = diff_queued_diff;
+
+ opts.output_format = DIFF_FORMAT_NO_OUTPUT;
+ diff_queued_diff.nr = 0;
+ diff_queued_diff.queue = NULL;
+ diff_flush(&opts);
+ return ret;
+}
+
+/*
+ * Get information of all renames which occurred in 'pairs', making use of
+ * any implicit directory renames inferred from the other side of history.
+ * We need the three trees in the merge ('o_tree', 'a_tree' and 'b_tree')
+ * to be able to associate the correct cache entries with the rename
+ * information; tree is always equal to either a_tree or b_tree.
+ */
+static struct string_list *get_renames(struct merge_options *o,
+ struct diff_queue_struct *pairs,
+ struct tree *tree,
+ struct tree *o_tree,
+ struct tree *a_tree,
+ struct tree *b_tree,
+ struct string_list *entries)
+{
+ int i;
+ struct string_list *renames;
+
+ renames = xcalloc(1, sizeof(struct string_list));
+
+ for (i = 0; i < pairs->nr; ++i) {
struct string_list_item *item;
struct rename *re;
- struct diff_filepair *pair = diff_queued_diff.queue[i];
+ struct diff_filepair *pair = pairs->queue[i];
if (pair->status != 'R') {
diff_free_filepair(pair);
item = string_list_insert(renames, pair->one->path);
item->util = re;
}
- opts.output_format = DIFF_FORMAT_NO_OUTPUT;
- diff_queued_diff.nr = 0;
- diff_flush(&opts);
return renames;
}
return clean_merge;
}
+struct rename_info {
+ struct string_list *head_renames;
+ 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,
+ struct tree *merge,
+ struct string_list *entries,
+ struct rename_info *ri)
+{
+ struct diff_queue_struct *head_pairs, *merge_pairs;
+ int clean;
+
+ ri->head_renames = NULL;
+ ri->merge_renames = NULL;
+
+ if (!o->detect_rename)
+ return 1;
+
+ head_pairs = get_diffpairs(o, common, head);
+ merge_pairs = get_diffpairs(o, common, merge);
+
+ ri->head_renames = get_renames(o, head_pairs, head,
+ common, head, merge, entries);
+ ri->merge_renames = get_renames(o, merge_pairs, merge,
+ common, head, merge, entries);
+ clean = process_renames(o, ri->head_renames, ri->merge_renames);
+
+ /*
+ * Some cleanup is deferred until cleanup_renames() because the
+ * data structures are still needed and referenced in
+ * process_entry(). But there are a few things we can free now.
+ */
+ initial_cleanup_rename(head_pairs);
+ initial_cleanup_rename(merge_pairs);
+
+ return clean;
+}
+
+static void final_cleanup_rename(struct string_list *rename)
+{
+ const struct rename *re;
+ int i;
+
+ if (rename == NULL)
+ return;
+
+ for (i = 0; i < rename->nr; i++) {
+ re = rename->items[i].util;
+ diff_free_filepair(re->pair);
+ }
+ string_list_clear(rename, 1);
+ free(rename);
+}
+
+static void final_cleanup_renames(struct rename_info *re_info)
+{
+ 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)
{
return (is_null_oid(oid) || mode == 0) ? NULL: (struct object_id *)oid;
}
if (unmerged_cache()) {
- struct string_list *entries, *re_head, *re_merge;
+ struct string_list *entries;
+ struct rename_info re_info;
int i;
/*
* Only need the hashmap while processing entries, so
get_files_dirs(o, merge);
entries = get_unmerged();
- re_head = get_renames(o, head, common, head, merge, entries);
- re_merge = get_renames(o, merge, common, head, merge, entries);
- clean = process_renames(o, re_head, re_merge);
+ clean = handle_renames(o, common, head, merge, entries,
+ &re_info);
record_df_conflict_files(o, entries);
if (clean < 0)
goto cleanup;
}
cleanup:
- string_list_clear(re_merge, 0);
- string_list_clear(re_head, 0);
+ final_cleanup_renames(&re_info);
+
string_list_clear(entries, 1);
+ free(entries);
hashmap_free(&o->current_file_dir_set, 1);
- free(re_merge);
- free(re_head);
- free(entries);
-
if (clean < 0)
return clean;
}