chmod should throw on Windows (#4446)

1 files changed, 11 insertions, 2 deletions

diff --git a/cli/js/write_file.ts b/cli/js/write_file.ts
index 5227bfece..ed64141d2 100644
--- a/cli/js/write_file.ts
+++ b/cli/js/write_file.ts
@@ -3,6 +3,7 @@ import { stat, statSync } from "./ops/fs/stat.ts";
 import { open, openSync } from "./files.ts";
 import { chmod, chmodSync } from "./ops/fs/chmod.ts";
 import { writeAll, writeAllSync } from "./buffer.ts";
+import { build } from "./build.ts";
 
 export interface WriteFileOptions {
   append?: boolean;
@@ -26,7 +27,11 @@ export function writeFileSync(
   const openMode = !!options.append ? "a" : "w";
   const file = openSync(path, openMode);
 
-  if (options.mode !== undefined && options.mode !== null) {
+  if (
+    options.mode !== undefined &&
+    options.mode !== null &&
+    build.os !== "win"
+  ) {
     chmodSync(path, options.mode);
   }
 
@@ -50,7 +55,11 @@ export async function writeFile(
   const openMode = !!options.append ? "a" : "w";
   const file = await open(path, openMode);
 
-  if (options.mode !== undefined && options.mode !== null) {
+  if (
+    options.mode !== undefined &&
+    options.mode !== null &&
+    build.os !== "win"
+  ) {
     await chmod(path, options.mode);
   }