HBase shell uses system JRuby if JRUBY_HOME is set, respects JRUBY_OPTS
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Key: HBASE-5245
URL: https://issues.apache.org/jira/browse/HBASE-5245
Project: HBase
Issue Type: Improvement
Components: shell
Reporter: Philip (flip) Kromer
Priority: Minor
Invoking {{hbase shell}}, the hbase runner launches the jruby jar directly, and
so behaves differently than the traditional jruby runner. Specifically, it
* does not respect the {{JRUBY_OPTS}} environment variable (among other things,
I cannot launch the shell to use ruby-1.9 mode)
* does not respect the {{JRUBY_HOME}} environment variable (placing things in
an inconsistent state if my classpath holds the system jruby).
This patch allows you to use an alternative jruby and to specify options to the
jruby jar.
* When the command is 'shell', adds {{$JRUBY_OPTS}} to the CLASS
* When the command is 'shell' and {{$JRUBY_HOME}} is set, adds
{{"$JRUBY_HOME/lib/jruby.jar"}} to the classpath, and sets {{-Djruby.home}} and
{{-Djruby.job}} config variables.
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