always print formatted code to stdout if no --write flag

prettier/main.ts

@@ -146,14 +146,14 @@ async function formatFile(
  plugins: prettierPlugins
  });
 
- if (text !== formatted) {
-  const fileUnit8 = encoder.encode(formatted);
- if (prettierOpts.write) {
+ const fileUnit8 = encoder.encode(formatted);
+ if (prettierOpts.write) {
+ if (text !== formatted) {
  console.log(`Formatting ${filename}`);
  await writeFile(filename, fileUnit8);
- } else {
- await stdout.write(fileUnit8);
  }
+ } else {
+ await stdout.write(fileUnit8);
  }
 }
 

prettier/main_test.ts

@@ -218,16 +218,16 @@ test(async function testPrettierPrintToStdout(): Promise<void> {
  decoder.decode(await Deno.readFile(f));
 
  const { stdout } = await run([...cmd, file0]);
- // the source file will not change without `--write` flags
+ // The source file will not change without `--write` flags.
  assertEquals(await getSourceCode(file0), "console.log (0)" + EOL);
- // the output will be formatted code
+ // The output should be formatted code.
  assertEquals(stdout, "console.log(0);" + EOL);
 
  const { stdout: formattedCode } = await run([...cmd, file1]);
- // the source file will not change without `--write` flags
+ // The source file will not change without `--write` flags.
  assertEquals(await getSourceCode(file1), "console.log(0);" + EOL);
- // the output will be empty string. because the formatted content is same with before
- assertEquals(formattedCode, "");
+ // The output will be formatted code even it is the same as the source file's content.
+ assertEquals(formattedCode, "console.log(0);" + EOL);
 
  await clearTestdataChanges();
 });