~Buildr Devs,
First I'd like to thank you all for such a cool project. As a Java developer
and Ruby lover I think this is the perfect project for me to contribute ;)
I know there's some interest in making buildr to run in JRuby, I think this
feature will be very important for the adoption of buildr, mainly because
some guys (like my clients) don't want/can install MRI on their machines.
Searching on the internet I couldn't find anything related to running on
JRuby, but I know there are other people interested on this, I'd like to
join that effort.
I've created a very simple prove-of-concept project to see what it takes to
get buildr running, and this is what i have up to now:
( You can download a tgz for this project from: )
http://repo.or.cz/w/buildr.git?a=snapshot;h=908b11;sf=tgz
The tar is structured as follows:
build => a shell script to call jruby-complete and run
buildr
hello-world => A hello world application to be compiled/packaged
lib/java => a jruby-complete snapshot is provided here
lib/ruby/gems => gems for buildr as jars.
I know JRuby is able to install gems using
--command gem install
but doing this forces jruby to expand all the .rb on ~/.jruby, and
I really like to get this running using jruby-complete.
lib/ruby/bin => The buildr launcher script is here.
To make it compile the hello-world project you must apply the attached patch
and copy/jar the content of buildr/lib into lib/ruby/gems/buildr-jruby.jar
The attached patch fixed JavaWrapper import when running on JRuby, this was
causing the javac tool not being run properly.
Although I was sucessful on making my hello-world proyect to compile, the
created package (jar) is corrupted. I guess this may be a bug on using
ruby-zip with JRuby.
So, this is what i've got. I'm planning to take a look at the package
issue next week or looking at running buildR specs from JRuby.
Best Regards,
--
vic
Quaerendo invenietis.
From cde9f11dd2cee383f0af6220cacb7b589faeb6db Mon Sep 17 00:00:00 2001
From: Victor Hugo Borja <[EMAIL PROTECTED]>
Date: Fri, 7 Dec 2007 14:02:12 -0600
Subject: [PATCH] Fix compilation when running under JRuby
---
lib/java/java.rb | 34 ++++++++++++++++++++++++++++------
1 files changed, 28 insertions(+), 6 deletions(-)
diff --git a/lib/java/java.rb b/lib/java/java.rb
index 0ad9924..a6e3ecc 100644
--- a/lib/java/java.rb
+++ b/lib/java/java.rb
@@ -28,7 +28,7 @@ module Buildr
def initialize() #:nodoc:
@classpath = [Java.tools_jar].compact
- if RUBY_PLATFORM == 'java'
+ if Java.jruby?
# in order to get a complete picture, we need to add a few jars to
the list.
@classpath +=
java.lang.System.getProperty('java.class.path').split(':').compact
end
@@ -39,7 +39,7 @@ module Buildr
cp = Buildr.artifacts(@classpath).map(&:to_s)
cp.each { |path| file(path).invoke }
- if RUBY_PLATFORM == 'java'
+ if Java.jruby?
cp.each do |jlib|
require jlib
end
@@ -68,8 +68,8 @@ module Buildr
end
def import(jlib)
- if RUBY_PLATFORM == 'java'
- ::Java.send(jlib)
+ if Java.jruby?
+ ::Java.instance_eval(jlib)
else
::Rjb.import jlib
end
@@ -78,7 +78,7 @@ module Buildr
def method_missing(sym, *args, &block) #:nodoc:
# these aren't the same, but depending on method_missing while
# supporting two unrelated systems is asking for trouble anyways.
- if RUBY_PLATFORM == 'java'
+ if Java.jruby?
::Java.send sym, *args, &block
else
::Rjb.send sym, *args, &block
@@ -184,6 +184,7 @@ module Buildr
puts "Running apt" if verbose
puts (["apt"] + cmd_args).join(" ") if Rake.application.options.trace
Java.wrapper do |jw|
+ cmd_args = cmd_args.to_java_array(::Java.java.lang.String) if
Java.jruby?
jw.import("com.sun.tools.apt.Main").process(cmd_args) == 0 or
fail "Failed to process annotations, see errors above"
end
@@ -221,7 +222,8 @@ module Buildr
puts "Compiling #{files.size} source files in #{name}" if verbose
puts (["javac"] + cmd_args).join(" ") if
Rake.application.options.trace
Java.wrapper do |jw|
- jw.import("com.sun.tools.javac.Main").compile(cmd_args) == 0 or
+ cmd_args = cmd_args.to_java_array(::Java.java.lang.String) if
Java.jruby?
+ jw.import("com.sun.tools.javac.Main").compile(cmd_args) == 0 or
fail "Failed to compile, see errors above"
end
end
@@ -272,6 +274,7 @@ module Buildr
puts "Generating Javadoc for #{name}" if verbose
puts (["javadoc"] + cmd_args).join(" ") if
Rake.application.options.trace
Java.wrapper do |jw|
+ cmd_args = cmd_args.to_java_array(::Java.java.lang.String) if
Java.jruby?
jw.import("com.sun.tools.javadoc.Main").execute(cmd_args) == 0 or
fail "Failed to generate Javadocs, see errors above"
end
@@ -356,6 +359,11 @@ module Buildr
File.join(home, "bin", name)
end
+ # return true if we a running on c-ruby and must use rjb
+ def rjb?; RUBY_PLATFORM != "java"; end
+ # return true if we are running on jruby
+ def jruby?; RUBY_PLATFORM == "java"; end
+
protected
# :call-seq:
@@ -430,3 +438,17 @@ module Buildr
end
end
+
+
+if Buildr::Java.jruby?
+
+ # Convert a RubyArray to a Java Object[] array of the specified element_type
+ class Array
+ def to_java_array(element_type)
+ java_array = ::Java.java.lang.reflect.Array.newInstance(element_type,
self.size)
+ self.each_index { |i| java_array[i] = self[i] }
+ return java_array
+ end
+ end
+
+end
--
1.5.2.5
