1 files changed, 49 insertions, 0 deletions
diff --git a/std/fs/ensure_dir.ts b/std/fs/ensure_dir.ts
new file mode 100644
index 000000000..dfc02f35c
--- /dev/null
+++ b/std/fs/ensure_dir.ts
@@ -0,0 +1,49 @@
+// Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
+import { getFileInfoType } from "./utils.ts";
+/**
+ * Ensures that the directory exists.
+ * If the directory structure does not exist, it is created. Like mkdir -p.
+ */
+export async function ensureDir(dir: string): Promise<void> {
+  let pathExists = false;
+  try {
+    // if dir exists
+    const stat = await Deno.stat(dir);
+    pathExists = true;
+    if (!stat.isDirectory()) {
+      throw new Error(
+        `Ensure path exists, expected 'dir', got '${getFileInfoType(stat)}'`
+      );
+    }
+  } catch (err) {
+    if (pathExists) {
+      throw err;
+    }
+    // if dir not exists. then create it.
+    await Deno.mkdir(dir, true);
+  }
+}
+
+/**
+ * Ensures that the directory exists.
+ * If the directory structure does not exist, it is created. Like mkdir -p.
+ */
+export function ensureDirSync(dir: string): void {
+  let pathExists = false;
+  try {
+    // if dir exists
+    const stat = Deno.statSync(dir);
+    pathExists = true;
+    if (!stat.isDirectory()) {
+      throw new Error(
+        `Ensure path exists, expected 'dir', got '${getFileInfoType(stat)}'`
+      );
+    }
+  } catch (err) {
+    if (pathExists) {
+      throw err;
+    }
+    // if dir not exists. then create it.
+    Deno.mkdirSync(dir, true);
+  }
+}