Deno: fs/copy feature seems to have trouble with special characters like e.g. ä, ü, ö ...

[michael-spengler]

I copied a file which contains an 'ö' in its filename --> the copy feature made \303\266 out of the 'ö'.

[michael-spengler]

Nerdy Workaround:

As I could not find a javascript / typescript based workaround yet, I trigger a shell script after fs/copy with something like:

text=$1
echo $text
echo "${text@E}"

replacing the Octal UTF-8 bytes 303 266 by ö :)

[cakekindel]

ooh lemme at this one those utf8 characters won't even know what hit em

[cakekindel]

@michael-spengler its ya boy, @cakekindel, comin' back at ya with some need for more information - i'm unable to reproduce this, could you provide the code / shell snippet you're using to trigger the bug, and OS / deno version you're using?

I've written a test to cover this that is (maybe errantly?) passing currently, so I'm thinking it's time to gather more info

(click to expand) code snippet: unit test for copyFile with unicode in name

  async function copyFileWithUnicodeInName(): Promise<void> {
    const tmpDir = Deno.makeTempDirSync();
    const destDir = Deno.makeTempDirSync({ dir: tmpDir, suffix: 'dest' });

    const filename = "wow! ö.txt";
    const fromPath = `${tmpDir}/${filename}`;
    writeFileString(fromPath, "I have a naughty name!");

    const toPath = `${destDir}/${filename}`;

    await Deno.copyFile(fromPath, toPath);
    const copiedFile = Array.from(Deno.readDirSync(destDir))[0];

    try {
      assertEquals(copiedFile.name, filename);
    } finally {
      Deno.removeSync(tmpDir, { recursive: true });
    }
  },

[michael-spengler]

@cakekindel thank you for your response. I faced this issue on an ubuntu machine - I will check it latest tomorrow evening and send some screenshots...

[michael-spengler]

@cakekindel I isolated things now and tested it separately and I have to admit this issue created by me is a false positive. Sorry for that. I need to code cleaner :)

[cakekindel]

ah, that would explain things! no harm no foul :smile: