# HG changeset patch
# User Roman Arutyunyan <arut@nginx.com>
# Date 1422895112 -10800
# Node ID 863d9de1e62bdaf1a8143268016f505681d65182
# Parent  bcdfc39bf44dade60fedb7b200ca5d3d10bfb22a
Core: supported directory skipping in ngx_walk_tree().

If pre_tree_handler() returns NGX_DECLINED, the directory is ignored.

diff --git a/src/core/ngx_file.c b/src/core/ngx_file.c
--- a/src/core/ngx_file.c
+++ b/src/core/ngx_file.c
@@ -1047,10 +1047,18 @@ ngx_walk_tree(ngx_tree_ctx_t *ctx, ngx_s
             ctx->access = ngx_de_access(&dir);
             ctx->mtime = ngx_de_mtime(&dir);
 
-            if (ctx->pre_tree_handler(ctx, &file) == NGX_ABORT) {
+            rc = ctx->pre_tree_handler(ctx, &file);
+
+            if (rc == NGX_ABORT) {
                 goto failed;
             }
 
+            if (rc == NGX_DECLINED) {
+                ngx_log_debug1(NGX_LOG_DEBUG_CORE, ctx->log, 0,
+                               "tree skip dir \"%s\"", file.data);
+                continue;
+            }
+
             if (ngx_walk_tree(ctx, &file) == NGX_ABORT) {
                 goto failed;
             }