Detect Android

Author: jmfayard

gradle/detekt-android-sdk.gradle

@@ -0,0 +1,58 @@
+// https://github.com/mockk/mockk
+def pathExists(String envPath) {
+    if (envPath != null && !envPath.empty) {
+        return file(envPath).exists()
+    }
+
+    return false
+}
+
+def setPropPath(Properties props, String prop, String path) {
+    if (!file(path).isDirectory()) return
+    if (props.hasProperty(prop)) return
+    props[prop] = path
+}
+
+def propsPath = file("../local.properties")
+def props = new Properties()
+
+if (propsPath.isFile()) {
+    props.load(new FileReader(propsPath))
+}
+
+ext.hasAndroidSdk = false
+String newAndroidSdkPath = null
+if (props.containsKey("sdk.dir")) {
+    ext.hasAndroidSdk = true
+} else if (pathExists(System.env.ANDROID_HOME)) {
+    newAndroidSdkPath = System.env.ANDROID_HOME
+} else if (pathExists(System.env.ANDROID_SDK_ROOT)) {
+    newAndroidSdkPath = System.env.ANDROID_SDK_ROOT
+} else if (pathExists(System.env.HOME + "/Android/Sdk")) {
+    newAndroidSdkPath = System.env.HOME + "/Android/Sdk"
+}
+
+if (newAndroidSdkPath != null) {
+    setPropPath(props, "sdk.dir", newAndroidSdkPath)
+
+    def oldProps = new Properties(props)
+
+    if (props != oldProps) {
+        def writer = new FileWriter(propsPath)
+        try {
+            props.store(writer, "generated by 'detect-android-sdk.gradle'")
+        } finally {
+            writer.close()
+        }
+    }
+
+    ext.hasAndroidSdk = true
+}
+
+if (ext.hasAndroidSdk != true){
+    println '''\
+[WARNING] Skipping build of Android related modules because Android SDK has not been found!
+          Define Android SDK location in 'local.properties' file or with ANDROID_HOME
+          environment variable to build Android modules
+'''
+}

settings.gradle.kts

@@ -31,7 +31,9 @@ gradleEnterprise {
 
 rootProject.name = "kotlin-libraries-playground"
 
-
+apply(from= "gradle/detekt-android-sdk.gradle")
+val hasAndroidSdk: Boolean by extra
+if (hasAndroidSdk) include("android")
 include("kotlin-jvm")
 include("kotlin-testing")
 include("kotlin-codegen")