`Context.currentWorkingDirectory()` does not work to set working directory for script

[sschuberth]

Background: This Slack conversation.

In the process of migrating from JRuby to TruffleRuby for runnign a script that's embeddef as a Java resource, I realized that calling Context.currentWorkingDirectory() does not work to change the working directory for the evaluated script. This is the code area of interest.

In JRuby, I used setCurrentDirect() on the ScriptingContainer. With TruffleRuby, I'm using currentWorkingDirectory() on the Context. But that does not work as the script fails with PolyglotException: Could not locate Gemfile.

As @eregon mentioned, this seems to be because TruffleRuby does not adhere to Context.currentWorkingDirectory() correctly and "the working directory is (currently) the native one in TruffleRuby".

[andrykonchin]

Thank you for the report, we'll look into it.