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JRuby canonicalizes paths in $" and __FILE__, making bundle exec fail when installed by RVM #5240

eregon opened this Issue Jul 6, 2018 · 2 comments


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eregon commented Jul 6, 2018

Paths in $" and __FILE__ are canonicalized in JRuby
They are not in MRI and in JRuby
We have the same bug in TruffleRuby (oracle/truffleruby#1383).

This also causes bundle exec rake to fail when JRuby is installed with latest RVM, which installs RVM in a gem path with a symlink in it (GEM_PATH=/home/eregon/.rvm/gems/jruby-, the ...@global is a symlink), and Bundler then fails to detect its own lib path in $:, leading to removing it and further autoload/require of bundler files to fail.
See oracle/truffleruby#1383 (comment) for details as this is very condensed description.

I'll write a spec for this behavior.


Provide at least:

  • jruby (2.5.0) 2018-05-24 81156a8 OpenJDK 64-Bit Server VM 25.151-b12 on 1.8.0_151-b12 +jit [linux-x86_64]
  • Linux

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eregon commented Jul 9, 2018

Specs in oracle/truffleruby@09cac1a

It's actually more complex than that since Ruby 2.4.4: on require "foo/bar", the foo/bar.rb part is not canonicalized, but the entry in $LOAD_PATH with that file in it is canonicalized.

So this essentially needs a fix in Bundler (bundler/bundler#6502) and/or RVM (to avoid symlinks in GEM_PATH.).


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headius commented Nov 12, 2018

Note that this is also causing "issues" when exceptions are raised from symlink-pathed files, as seen in #5436. Unclear how critical that particular case is, though, since it was only found due to error path-inspecting specs in Pry.

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