Merge pull request lightbend-labs#167 from fanf/issue_166/restore_ass…

…embly_task_for_cli

Issue lightbend-labs#166: restore assembly task removed in lightbend-labs#155 along with s3 deploy

README.md

@@ -52,12 +52,23 @@ Using [sbt][sbt]:
 
 This will recompile all MiMa's modules.
 
+If you'd like to create distributable jar files for the CLI, run:
+
+      $ sbt assembly
+
+This will create `reporter/target/mima-reporter-assembly-....jar` jar file that can be used to launch the command line version of MiMa.
+
+
 Launch MiMa Reporter CLI
 -------
 Type the following command to run the MiMa Reporter command-line
 
 	$ sbt reporter/run
 
+Alternatively, you can use the assembly jar to use the CLI as a standalone application:
+
+        $ java -jar path/to/mima-reporter-assembly-....jar --prev LIB-v1.jar --curr LIB-v2.jar
+
 MiMa Reporter: Functional Tests
 -------
 

project/Build.scala

@@ -6,6 +6,10 @@ import com.typesafe.config.ConfigFactory
 import Project.inConfig
 import Configurations.config
 import Build.data
+import sbtassembly.Plugin.AssemblyKeys
+import sbtassembly.Plugin.AssemblyKeys._
+import sbtassembly.Plugin.assemblySettings
+import sbtassembly.Plugin.MergeStrategy
 import sbtbuildinfo.Plugin._
 import bintray.BintrayPlugin
 import bintray.BintrayPlugin.autoImport._
@@ -105,16 +109,29 @@ object MimaBuild {
     settings(sonatypePublishSettings:_*)
   )
 
+  val myAssemblySettings: Seq[Setting[_]] = (assemblySettings: Seq[Setting[_]]) ++ Seq(
+    mergeStrategy in assembly ~= (old => {
+      case "LICENSE" => MergeStrategy.first
+      case x         => old(x)
+    }),
+    AssemblyKeys.excludedFiles in assembly ~= (old =>
+      // Hack to keep LICENSE files.
+      { files: Seq[File] => old(files) filterNot (_.getName contains "LICENSE") }
+    )
+  )
+
   lazy val reporter = (
     project("reporter", file("reporter"), settings = commonSettings)
     settings(libraryDependencies += typesafeConfig,
              name := buildName + "-reporter")
     dependsOn(core)
     settings(sonatypePublishSettings:_*)
+    settings(myAssemblySettings:_*)
     settings(
       // add task functional-tests that depends on all functional tests
       functionalTests := allTests(functionalTests in _).value,
-      test in IntegrationTest := allTests(test in IntegrationTest in _).value
+      test in IntegrationTest := allTests(test in IntegrationTest in _).value,
+      mainClass in assembly := Some("com.typesafe.tools.mima.cli.Main")
     )
   )
 

project/plugins.sbt

@@ -1,3 +1,5 @@
+addSbtPlugin("com.eed3si9n" % "sbt-assembly" % "0.9.1")
+
 addSbtPlugin("com.eed3si9n" % "sbt-buildinfo" % "0.2.5")
 
 addSbtPlugin("me.lessis" % "bintray-sbt" % "0.3.0")