Add support for a jruby specific dotfile to configure jruby options, eg JVM_OPTS, to be used via all front ends

I agree with adding this sort of configuration manner. This would also work for JSR223 JRubyEgnine, which uses Java System properties to configure.

But, I think a filename should be something else that is clearly recognizable from users. For example, config.jruby, or jruby.conf.

This was sort of hinted at in JRUBY-1103, which was rejected at the time in favor of JAVA_OPTS. Maybe situations are different now.

At any rate, unless there is a need for multiple files and directories (which I do not think is the case), a directory seems overkill. $HOME/.jrubyrc and /etc/jrubyrc should be sufficient.

If we can agree on file locations, the next thing is to agree on format.

OK, then perhaps, JSR223 should have other configuration file. Because neither $HOME/.jrubyrc nor /etc/jrubyrc is portable. Users' can't include such file in their jar archives to distribute.

Even though the config file is not the same, common format will help users as well as documenting.

I have added this support on jruby-1_6 and master. Some discussion on the commit here: https://github.com/jruby/jruby/commit/187dc749d7ce82df7a7229c616cf46bd0bf0b563

It may be ready to go for the purposes of this bug. Right now it checks for a .jrubyrc in the current dir, and if that does not exist it uses one from ~/.jrubyrc. The contents are the "short form" property key=value pairs, shown in jruby --properties. There's no way to specify non-property command-line args just yet.

Thoughts?

Just tried it to set the 1.8/1.9 compatbility and works fine, but does not seem to allow changing of memory size, but more than likely I am doing it wrong or that is whats meant by non-property command-line args...:

Here is my property file:

$ cat .jrubyrc
compat.version=1.9
-J-Xmx=250m

I tried a few variations, eg -X=mx250m, -Xmx=250m but not joy.

$ jruby -e 'require "java"; java.lang.System.getProperties.each { |k,v| puts "#

=#

" if k.match /max/i; }; puts "ruby version:#

"'
jruby.memory.max=250m
jruby.stack.max=2048k
ruby version:1.9.2

Chris, try:

memory.max=250m
stack.max=8m

Guys, I don't know if there is a regression with 1.6.7, or an issue with RVM installations, but I'm seeing the following behavior:

$ pwd
/Users/kenneth
$ cat .jrubyrc
compat.version=1.9
$ ruby -v
jruby 1.6.7 (ruby-1.8.7-p357) (2012-02-22 3e82bc8) (Java HotSpot(TM) 64-Bit Server VM 1.6.0_31) [darwin-x86_64-java]

I've seen so many .jrubyrc references all over, yet I'm failing to get this working...

Best

Apologies, seems to be rvm related. Solved the issue by running the following:

$ chmod -x .rvm/hooks/after_use_jruby

Cheers

We did add this in 1.6 timeframe, and I don't see any additional work to do here.

Thats Great - many thanks.