fix(#4769) Adds readTextFile, writeTextFile, with sync counterparts (#4901)

1 files changed, 18 insertions, 0 deletions

diff --git a/cli/js/read_text_file.ts b/cli/js/read_text_file.ts
new file mode 100644
index 000000000..3423b26b8
--- /dev/null
+++ b/cli/js/read_text_file.ts
@@ -0,0 +1,18 @@
+import { open, openSync } from "./files.ts";
+import { readAll, readAllSync } from "./buffer.ts";
+
+export function readTextFileSync(path: string): string {
+  const decoder = new TextDecoder();
+  const file = openSync(path);
+  const content = readAllSync(file);
+  file.close();
+  return decoder.decode(content);
+}
+
+export async function readTextFile(path: string): Promise<string> {
+  const decoder = new TextDecoder();
+  const file = await open(path);
+  const content = await readAll(file);
+  file.close();
+  return decoder.decode(content);
+}