Always use the java version of a GEM (#391)

Author: ysb33r

build.gradle

@@ -107,10 +107,8 @@ subprojects {
             ideReport.enabled = true
             ideReport.destination = file( "${project.codenarc.reportsDir}/${reportName}.ide.txt")
         }
-
     }
 
-
     idea {
         module {
             downloadJavadoc = true

core-plugin/build.gradle

@@ -36,7 +36,6 @@ bintray {
             vcsTag = "v${project.version}"
             attributes = ['gradle-plugin': 'com.github.jruby-gradle.core:com.github.jruby-gradle:jruby-gradle-core-plugin']
             desc = 'This plugin provides some core dependency resolution for JRuby/Gradle'
-
         }
     }
 }

core-plugin/src/integTest/groovy/com/github/jrubygradle/api/core/IvyXmlProxyServerIntegrationSpec.groovy

@@ -208,6 +208,21 @@ class IvyXmlProxyServerIntegrationSpec extends Specification {
         findFiles ~/^bibtex-ruby-4.4.7.gem$/
     }
 
+    void 'Resolve a transitive dependency which is jruby-specific'() {
+        setup:
+        withBuildFile '''
+        dependencies {
+            something 'rubygems:rubocop:0.77.0'
+        }
+        '''
+
+        when:
+        build()
+
+        then:
+        findFiles ~/^jaro_winkler-1.5.\d+-java.gem$/
+    }
+
     private List<File> findFiles(Pattern pat) {
         new File(projectDir, 'build/something').listFiles(new FilenameFilter() {
             @Override

core-plugin/src/main/groovy/com/github/jrubygradle/internal/core/DefaultRubyGemRestApi.groovy

@@ -34,6 +34,7 @@ import groovyx.net.http.HttpBuilder
 import groovyx.net.http.HttpException
 import okhttp3.OkHttpClient
 
+import static com.github.jrubygradle.internal.gems.GemToIvy.JAVA_PLATFORM
 import static groovyx.net.http.ContentTypes.JSON
 import static groovyx.net.http.NativeHandlers.Parsers.json
 import static groovyx.net.http.OkHttpBuilder.configure
@@ -171,8 +172,16 @@ class DefaultRubyGemRestApi implements com.github.jrubygradle.api.core.RubyGemQu
             // licenses arrayList
         )
 
+        if (metadata.platform != JAVA_PLATFORM) {
+            if (getData(V1, "versions/${metadata.name}").find {
+                it.number == metadata.version && it.platform == JAVA_PLATFORM
+            }) {
+                metadata.platform = JAVA_PLATFORM
+            }
+        }
+
         if (jsonParser.dependencies?.runtime) {
-            metadata.dependencies.addAll( Transform.toList(jsonParser.dependencies.runtime) {
+            metadata.dependencies.addAll(Transform.toList(jsonParser.dependencies.runtime) {
                 new DefaultGemDependency(name: it.name, requirements: it.requirements)
             })
         }

core-plugin/src/main/groovy/com/github/jrubygradle/internal/gems/GemToIvy.groovy

@@ -41,6 +41,8 @@ import static com.github.jrubygradle.api.gems.GemVersion.singleGemVersionFromMul
 @CompileStatic
 class GemToIvy {
 
+    public static final String JAVA_PLATFORM = 'java'
+
     /** Create a converter from GEM metadata to Ivy metadata.
      *
      * This constructor version assumes that the group is called {@code rubygems}.
@@ -156,7 +158,6 @@ class GemToIvy {
         shaFile
     }
 
-    private static final String JAVA_PLATFORM = 'java'
     private final String serverUri
     private final String org = 'rubygems'
 }

gradle.properties

@@ -1,4 +1,4 @@
-version=2.0.0-alpha2
+version=2.0.0-alpha.3
 group=com.github.jruby-gradle
 copyrightYear=2014-2019