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__FILE__ is wrong when using PathType.CLASSPATH so require_relative can't work #1875

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hakanai opened this issue Jul 31, 2014 · 2 comments
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@hakanai
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@hakanai hakanai commented Jul 31, 2014

If I load a file from the classpath like this:

private Structure createStructure() throws Exception {
    ScriptingContainer container = new ScriptingContainer();
    container.runScriptlet(PathType.CLASSPATH, "org/acme/app/scripts/dsl.rb");

    // ...
}

And then this script requires other scripts:

puts __FILE__
require_relative 'drop_context'

This prints out "org/acme/app/scripts/dsl.rb" even though I would expect "classpath:/org/acme/app/scripts/dsl.rb", so require_relative is doomed to fail as the file is not on the filesystem (and indeed this does fail - it resolves the path relative to my home directory.)

I tried working around this by passing PathType.ABSOLUTE and "classpath:/org/.../dsl.rb" instead, but this doesn't work - ScriptingContainer loads this script directly, so it doesn't know that classpath is a special URL.

I'm not sure what the workaround is from here. I guess the worst case is that I accept that require_relative can't possibly work and use require with absolute paths.

@hakanai
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@hakanai hakanai commented Aug 3, 2014

The workaround I found is to use runScriptlet(InputStream, String), passing the proper path:

        try (InputStream resource = getClass().getResourceAsStream("dsl.rb")) {
            container.runScriptlet(resource, "classpath:/org/acme/app/scripts/dsl.rb");
        }
@headius
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@headius headius commented Dec 4, 2014

I have a fix.

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