+ struct walk_tree_context *walk_tree_ctx = cbdata;
+
+ if (walk_tree_ctx->file_only && !S_ISREG(mode))
+ return READ_TREE_RECURSIVE;
+ if (strncmp(base->buf, walk_tree_ctx->match_path, base->len)
+ || strcmp(walk_tree_ctx->match_path + base->len, pathname))
+ return READ_TREE_RECURSIVE;
+ memmove(walk_tree_ctx->matched_sha1, sha1, 20);
+ walk_tree_ctx->found_path = 1;
+ return 0;
+}
+
+int cgit_ref_path_exists(const char *path, const char *ref, int file_only)
+{
+ unsigned char sha1[20];
+ unsigned long size;
+ struct pathspec_item path_items = {
+ .match = path,
+ .len = strlen(path)
+ };
+ struct pathspec paths = {
+ .nr = 1,
+ .items = &path_items
+ };
+ struct walk_tree_context walk_tree_ctx = {
+ .match_path = path,
+ .matched_sha1 = sha1,
+ .found_path = 0,
+ .file_only = file_only
+ };
+
+ if (get_sha1(ref, sha1))
+ return 0;
+ if (sha1_object_info(sha1, &size) != OBJ_COMMIT)
+ return 0;
+ read_tree_recursive(lookup_commit_reference(sha1)->tree, "", 0, 0, &paths, walk_tree, &walk_tree_ctx);
+ return walk_tree_ctx.found_path;
+}
+
+int cgit_print_file(char *path, const char *head, int file_only)
+{
+ unsigned char sha1[20];
+ enum object_type type;
+ char *buf;
+ unsigned long size;
+ struct commit *commit;
+ struct pathspec_item path_items = {
+ .match = path,
+ .len = strlen(path)
+ };
+ struct pathspec paths = {
+ .nr = 1,
+ .items = &path_items
+ };
+ struct walk_tree_context walk_tree_ctx = {
+ .match_path = path,
+ .matched_sha1 = sha1,
+ .found_path = 0,
+ .file_only = file_only
+ };