1 files changed, 16 insertions, 0 deletions
diff --git a/pbt/ts/src/fs.ts b/pbt/ts/src/fs.ts
new file mode 100644
index 0000000..133c8fd
--- /dev/null
+++ b/pbt/ts/src/fs.ts
@@ -0,0 +1,16 @@
+import {mkdtemp, realpath} from 'fs/promises';
+import {tmpdir} from 'os';
+import path = require('path');
+import fs = require('fs');
+
+export const withTempFile = <A>(fn: (filepath: string) => A) =>
+  withTempDir(dir => fn(path.join(dir, 'file')));
+
+export const withTempDir = async <A>(fn: (path: string) => A) => {
+  const dir = await mkdtemp((await realpath(tmpdir())) + path.sep);
+  try {
+    return await fn(dir);
+  } finally {
+    fs.rmdir(dir, () => {});
+  }
+};