overwrite file contents

Author: ItsNickBarry

tasks/rename_files.ts

@@ -11,10 +11,11 @@ task('rename-files', 'Batch replace text in local filenames')
 
     const files = (
       await Promise.all(
-        directories.map(async (dir) => {
-          const files = await fs.promises.readdir(dir, { recursive: true });
-          return files.map((file) => path.resolve(dir, file));
-        }),
+        directories.map(async (dir) =>
+          (await fs.promises.readdir(dir, { recursive: true })).map((file) =>
+            path.resolve(dir, file),
+          ),
+        ),
       )
     )
       .flat()
@@ -28,19 +29,34 @@ task('rename-files', 'Batch replace text in local filenames')
 
     console.log(`Found ${files.length} files to rename:`);
 
+    const fileContents: { [file: string]: string } = {};
+
+    await Promise.all(
+      files.map(
+        async (f) =>
+          (fileContents[f] = (await fs.promises.readFile(f)).toString()),
+      ),
+    );
+
     for (const oldName of files) {
       const newName = path.resolve(
         path.dirname(oldName),
         path.basename(oldName).replace(args.oldText, args.newText),
       );
 
+      const newContents = fileContents[oldName].replaceAll(
+        args.oldText,
+        args.newText,
+      );
+
       console.log(
         path.relative('.', oldName),
         '=>',
         path.relative('.', newName),
       );
 
       if (args.write) {
+        await fs.promises.writeFile(oldName, newContents);
         await fs.promises.rename(oldName, newName);
       }
     }

tsconfig.json

@@ -1,6 +1,7 @@
 {
   "compilerOptions": {
     "target": "es2020",
+    "lib": ["es2021"],
     "module": "commonjs",
     "strict": true,
     "esModuleInterop": true,