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-rw-r--r--shared.c15
1 files changed, 13 insertions, 2 deletions
diff --git a/shared.c b/shared.c
index 0fe513f..3d4feea 100644
--- a/shared.c
+++ b/shared.c
@@ -38,6 +38,7 @@ int cgit_cache_dynamic_ttl     =  5;
 int cgit_cache_static_ttl      = -1;
 int cgit_cache_max_create_time =  5;
 int cgit_summary_log           =  0;
+int cgit_renamelimit           = -1;
 
 int cgit_max_msg_len = 60;
 int cgit_max_repodesc_len = 60;
@@ -182,6 +183,8 @@ void cgit_global_config_cb(const char *name, const char *value)
 		cgit_summary_log = atoi(value);
 	else if (!strcmp(name, "agefile"))
 		cgit_agefile = xstrdup(value);
+	else if (!strcmp(name, "renamelimit"))
+		cgit_renamelimit = atoi(value);
 	else if (!strcmp(name, "repo.group"))
 		cgit_repo_group = xstrdup(value);
 	else if (!strcmp(name, "repo.url"))
@@ -383,17 +386,25 @@ int cgit_diff_files(const unsigned char *old_sha1,
 
 void cgit_diff_tree(const unsigned char *old_sha1,
 		    const unsigned char *new_sha1,
-		    filepair_fn fn)
+		    filepair_fn fn, const char *prefix)
 {
 	struct diff_options opt;
 	int ret;
+	int prefixlen;
 
 	diff_setup(&opt);
 	opt.output_format = DIFF_FORMAT_CALLBACK;
 	opt.detect_rename = 1;
+	opt.rename_limit = cgit_renamelimit;
 	opt.recursive = 1;
 	opt.format_callback = cgit_diff_tree_cb;
 	opt.format_callback_data = fn;
+	if (prefix) {
+		opt.nr_paths = 1;
+		opt.paths = &prefix;
+		prefixlen = strlen(prefix);
+		opt.pathlens = &prefixlen;
+	}
 	diff_setup_done(&opt);
 
 	if (old_sha1 && !is_null_sha1(old_sha1))
@@ -410,5 +421,5 @@ void cgit_diff_commit(struct commit *commit, filepair_fn fn)
 
 	if (commit->parents)
 		old_sha1 = commit->parents->item->object.sha1;
-	cgit_diff_tree(old_sha1, commit->object.sha1, fn);
+	cgit_diff_tree(old_sha1, commit->object.sha1, fn, NULL);
 }