slavashvets · March 13, 2015 07:49 · Mar 13, 2015
diff --git a/inheritStaticContent.gradle b/inheritStaticContent.gradle
@@ -0,0 +1,77 @@
+/**
+    Inherit Static Content
+    ======================
+
+    Description:
+
+    1. Extend output webapp with static folder (static resources) from
+       depended projects and external modules
+    2. Used for `runtime` first-level dependencies (not transitively)
+    3. Works for WAR plugin (built-in) and for Gretty plugin (third party)
+
+    Usage:
+
+    1. Apply this plugin after applying WAR and Gretty plugin
+    2. Add a dependency to `runtime` configuration (`compile` configuration
+       will work also because `runtime` extends it)
+
+    Example:
+
+        apply from: "${rootDir}/gradle/inheritStaticContent.gradle"
+        dependencies {
+            compile project(':some-project-with-static-files')
+            runtime 'com.test.plugins:some-plugin-with-static-files:1.0.10'
+        }
+ */
+afterEvaluate {
+    configurations.runtime {
+        gradle.taskGraph.whenReady { taskGraph ->
+            def declaredExternal = incoming.dependencies
+                                           .withType(ExternalDependency)
+                                           .collect { id ->
+                "${id.group}:${id.name}:${id.version}"
+            }
+            allDependencies.withType(ProjectDependency)*.dependencyProject.sourceSets.main.resources.srcDirs*.each { dir ->
+                def staticContentDir = new File(dir, 'static')
+                if (!staticContentDir.exists()) {
+                    return
+                }
+                if (taskGraph.hasTask(war)) {
+                    war.from staticContentDir
+                }
+                if (taskGraph.hasTask(prepareInplaceWebApp)) {
+                    gretty.extraResourceBase staticContentDir
+                }
+            }
+            resolvedConfiguration.resolvedArtifacts.each { artifact ->
+                if ("${artifact.moduleVersion.id}" in declaredExternal) {
+                    if (taskGraph.hasTask(war)) {
+                        war {
+                            from zipTree(artifact.file).matching {
+                                include 'static/'
+                            }
+                            eachFile {  // waiting for GRADLE-3025
+                                if (it.path.startsWith('static/*')) {
+                                    it.path = it.relativePath.segments.tail().join('/')
+                                }
+                            }
+                            includeEmptyDirs = false
+                        }
+                    }
+                    if (taskGraph.hasTask(prepareInplaceWebApp)) {
+                        prepareInplaceWebApp << {
+                            zipTree(artifact.file).matching { include "static/" }.files
+                        }
+                        def artifactName = artifact.file.name
+                        def artifactMD5 = HashUtil.createCompactMD5(artifact.file.absolutePath)
+                        def staticDir = new File("${buildDir}/tmp/expandedArchives/${artifactName}_${artifactMD5}/static")
+                        gretty.extraResourceBase staticDir
+                    }
+                }
+            }
+        }
+    }
+}
+
+import org.gradle.internal.hash.HashUtil
+import org.gradle.util.GFileUtils