Forcing jruby-complete to execute a command.

[blerins]

Hello!

I'm having some troubles with jruby-complete in environements with rbenv.

$ echo $PATH
/home/blerins/.rbenv/shims:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
$ java -Djruby.debug.scriptResolution=true -jar target/lib/jruby-complete.jar -S gem install bundler
Found: /home/blerins/.rbenv/shims/gem
SyntaxError: /home/blerins/.rbenv/shims/gem:3: syntax error, unexpected tSTRING_BEG

[ -n "$RBENV_DEBUG" ] && set -x
     ^
$ PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
$ java -Djruby.debug.scriptResolution=true -jar target/lib/jruby-complete.jar -S gem install bundler
Successfully installed bundler-1.3.5
1 gem installed

As seen at:

jruby/core/src/main/java/org/jruby/util/cli/ArgumentProcessor.java

Line 495 in 823e689

// run as a command if we couldn't find a script

JRuby always tries to find the script first, I was wondering if there is any possibility to force Jruby to ejecute a command.

related: rbenv/rbenv#467

Thanks!

[BanzaiMan]

I think there is a bug where the files inside the JAR is not found correctly. Before searching in $PATH, we should be looking inside the JAR, and find META-INF/jruby.home/bin/gem, but aren't.

Quite possibly a different manifestation of #1031.

[mkristian]

well, I do see that error quite regularly :(

but my setup is probably a bit unusual: I manage my MRI with rbenv but added jruby to PATH. that allows me to switch fast to jruby by adding 'j' and to call
jruby -S gem
jruby -S irb
etc

gem,irb, etc are usually a ruby scripts and things just work fine. with having $HOME/.rbenv/shims in the path those scripts are bash scripts :(

but looking through my
~/.rbenv/shims/
directory reveals a lot of scripts which very much look like they come from installed gems:
ast erb jbundle jruby rails rspec turn
autospec gem jgem jrubyc rake ruby
convert_to_should_syntax htmldiff jirb ldiff rdoc testrb
copyright-header irb jirb_swing nbundle ri thin

they all will fail like
java -jar jruby-complete.jar -S thin
because there will never be a thin bin stub within jruby-complete !

I agreee with @BanzaiMan that jruby should look first in the jar before looking on the PATH but it is only a partial solution for the above given problem.

[mkristian]

fixed via fcec818