feat: add ensureDir/ensureFile for fs modules (denoland/deno_std#264)

Original: https://github.com/denoland/deno_std/commit/9ae941338aea09adf0d4f48d40f2b09131ae3d5f

1 files changed, 32 insertions, 0 deletions

diff --git a/fs/ensure_dir.ts b/fs/ensure_dir.ts
new file mode 100644
index 000000000..5a5cc0a01
--- /dev/null
+++ b/fs/ensure_dir.ts
@@ -0,0 +1,32 @@
+// Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
+/**
+ * Ensures that the directory exists. If the directory structure does not exist, it is created. Like mkdir -p.
+ * @export
+ * @param {string} dir
+ * @returns {Promise<void>}
+ */
+export async function ensureDir(dir: string): Promise<void> {
+  try {
+    // if dir exists
+    await Deno.stat(dir);
+  } catch {
+    // if dir not exists. then create it.
+    await Deno.mkdir(dir, true);
+  }
+}
+
+/**
+ * Ensures that the directory exists. If the directory structure does not exist, it is created. Like mkdir -p.
+ * @export
+ * @param {string} dir
+ * @returns {void}
+ */
+export function ensureDirSync(dir: string): void {
+  try {
+    // if dir exists
+    Deno.statSync(dir);
+  } catch {
+    // if dir not exists. then create it.
+    Deno.mkdirSync(dir, true);
+  }
+}