Switch over to using Gradle to build and test the Blick agent

HACKING.md

@@ -0,0 +1,24 @@
+# Hacking on Blick
+
+Blick relies on the [Gradle](http://gradle.org) build tool by way of the
+[jruby-gradle-jar-plugin](https://github.com/jruby-gradle/jruby-gradle-jar-plugin).
+
+## Building
+
+In order to build an agent jar, you only need to run `./gradlew shadowJar` in
+the `blick/` directory.
+
+## Testing
+
+Running the [RSpec](http://rspec.org) tests requires executing: `./gradlew
+spec`
+
+## Running
+
+The created "shadow jar" is fully self-contained and executable, executing it
+requires building the jar (see above) and then: `java -jar
+build/libs/blick-agent-all.jar`
+
+**NOTE:** if you're using [rvm](http://rvm.io) or any other tool that sets the
+`GEM_HOME` and/or `GEM_PATH` environment variables, you should unset them
+before running the jar.

build.gradle

@@ -1,30 +1,70 @@
-apply plugin: 'java'
-apply plugin: 'com.github.jruby-gradle.jar'
-
 buildscript {
     repositories {
         jcenter()
         mavenLocal()
     }
     dependencies {
-        classpath group: 'com.github.jruby-gradle', name: 'jruby-gradle-plugin', version: '0.1.3-SNAPSHOT'
-        classpath group: 'com.github.jruby-gradle', name: 'jruby-gradle-jar-plugin', version: '0.1.1-SNAPSHOT'
+        classpath group: 'com.github.jruby-gradle',
+                  name: 'jruby-gradle-plugin',
+                  version: '0.1.3-SNAPSHOT'
+    }
+}
+plugins {
+  //id "com.github.jruby-gradle.base" version "0.1.2"
+  id "com.github.jruby-gradle.jar" version '0.1.1'
+  id "com.github.johnrengelman.shadow" version "1.1.2"
+}
+apply plugin: 'java'
+
+import com.github.jrubygradle.JRubyExec
+
+// There appear to be issues with 1.7.16:
+// <https://gist.github.com/rtyler/dd1f1df58d4712a9e63d>
+project.jruby.execVersion = '1.7.15'
+
+dependencies {
+    compile group: 'org.jruby', name: 'jruby-complete', version: '1.7.15'
+
+    gems group: 'rubygems', name: 'protobuf', version: '3.0.+'
+    gems group: 'rubygems', name: 'concurrent-ruby', version: '0.7.+'
+
+    jrubyExec group: 'rubygems', name: 'rspec', version: '3.1.+'
+}
+
+configurations {
+    jrubyExec {
+        extendsFrom gems
     }
 }
 
-dependencies {
-    gems group: 'rubygems', name: 'protobuf', version: '3.0.+'
+jrubyJavaBootstrap {
+    jruby {
+        initScript = 'blick-agent'
+    }
 }
 
-jar {
+// Pull the contents of lib and bin into the root of the created jar file
+sourceSets {
+    main {
+        resources.srcDirs = ['lib', 'bin']
+    }
+}
+
+shadowJar {
+    baseName 'blick-agent'
+    exclude '*.sw*', '*.gitkeep', '*.md'
     jruby {
+        // Use the default GEM installation directory
         defaultGems()
-        // Make the JAR executable and use the default main class
         defaultMainClass()
     }
 }
 
-
-
+task spec(type: JRubyExec) {
+    group 'JRuby'
+    description 'Execute the RSpecs in JRuby'
+    jrubyArgs '-S', 'rspec'
+    scriptArgs '--color', '--order', 'random'
+}
 
 // vim: ft=groovy