Formatting is failing for certain files after #1407 about plugin-ruby

[kddnewton]

Thanks @bschlenk I think that's an unintended consequence of #1407 - @hrabe could you take a look at this? We certainly shouldn't be breaking behavior in point releases, hopefully we can get this fixed without reverting.

[bschlenk]

I don't know if this would work for everyone, but in my case using the directory where the prettier config file lives as the cwd of the spawned ruby process works for me, both from the cli and vscode. It looks like this:

// plugin.js
...
import { resolveConfigFile } from "prettier";
...

// in spawnServer
    
const options = { 
  env: Object.assign({}, process.env, { LANG: getLang() }),
  stdio: ["ignore", "ignore", "inherit"],
  detached: true
};

if (opts.filepath) { 
  const prettierConfig = await resolveConfigFile(opts.filepath)
  options.cwd = path.dirname(prettierConfig)
}