implemented gradle caching and fixed up paths

Author: plamen5kov

build/project-template-gradle/build-tools/android-static-binding-generator/build.gradle

@@ -1,58 +1,51 @@
 /*
-*	The android static binding generator will generate bindings for some javascript code you specify.
-*	The passed output directory will be created if necessary
-*	to run: 
-*			gradle generatebindings -PjsCodeDir=[js_code_dir] -PjarsDir=[jars_dir] -PoutDir=[out_dir]
+*	The android static binding generator will generate bindings for the Javascript code you specify.
 */
 
 def isWinOs = System.properties['os.name'].toLowerCase().contains('windows')
 
-def isJsCodePathPassed = project.hasProperty("jsCodeDir")
-def isOutDirPassed = project.hasProperty("outDir")
-
 def bgRootDir = "$rootDir/build-tools/android-static-binding-generator"
 def astParserDir = "$bgRootDir/ast-parser"
 def interfaceNamesFilePath = "$bgRootDir/interfaces-names.txt"
 def bindingsFilePath = "$bgRootDir/bindings.txt"
+def cachedJarsFilePath = "$bgRootDir/cached.dat"
+
+def absoluteOutDir = "$rootDir/$project.outDir"
+def absoluteJsCodeDir = "$rootDir/$project.jsCodeDir"
 
+// depends on passed jars and generated interface-names
 task generateInterfaceNamesList(type: JavaExec) {
-	outputs.upToDateWhen {
-		(new File(interfaceNamesFilePath)).exists()
-	}
+	def cachedJars = new File(cachedJarsFilePath)
+	
+	inputs.file(cachedJars)
+	outputs.files(interfaceNamesFilePath)
 
-	doFirst {		
+	doFirst {
 		main "-jar"
-
-		//todo: for test (remove later)
-		// def ll = new LinkedList<String>();
-		// ll.add("D:/work/nativescript-cli/scratch/buildtoolstest/platforms/android/libs/nativescript.jar")
-		// ll.add("D:/tools/android_sdk/extras/android/m2repository/com/android/support/support-annotations/23.2.1/support-annotations-23.2.1.jar")
-		// ll.add("D:/tools/android_sdk/platforms/android-23/android.jar")
-		// ll.add("D:/work/nativescript-cli/scratch/buildtoolstest/platforms/android/build/intermediates/exploded-aar/com.android.support/animated-vector-drawable/23.2.1/jars/classes.jar")
-		// ll.add("D:/work/nativescript-cli/scratch/buildtoolstest/platforms/android/build/intermediates/exploded-aar/com.android.support/appcompat-v7/23.2.1/jars/classes.jar")
-		// ll.add("D:/work/nativescript-cli/scratch/buildtoolstest/platforms/android/build/intermediates/exploded-aar/com.android.support/support-v4/23.2.1/jars/classes.jar")
-		// ll.add("D:/work/nativescript-cli/scratch/buildtoolstest/platforms/android/build/intermediates/exploded-aar/com.android.support/support-v4/23.2.1/jars/libs/internal_impl-23.2.1.jar")
-		// ll.add("D:/work/nativescript-cli/scratch/buildtoolstest/platforms/android/build/intermediates/exploded-aar/com.android.support/support-vector-drawable/23.2.1/jars/classes.jar")
-		// ll.add("D:/work/nativescript-cli/scratch/buildtoolstest/platforms/android/build/intermediates/exploded-aar/widgets-release/jars/classes.jar")
-		// project.jarFiles = ll;
 
-		def jarsArr = rootProject.jarFiles.toString().replaceAll(/[\[\]]/, "").split(", ")
+		def jarsAsStr = rootProject.jarFiles.toString();
+		def jarsArr = jarsAsStr.replaceAll(/[\[\]]/, "").split(", ")
 
 		def str = new LinkedList <String> ();
 		str.add("interfacenamegenerator.jar")
 		str.addAll(jarsArr)
 
 		args str.toArray()
+		
+		cachedJars.text = jarsAsStr
 	}
 }
 
+// won't run if node_modules are installed
 task runNpmInstallForAstParser (type: Exec) {
-	workingDir astParserDir
 
+	//check this way so it doesn't slow down the build by snapshot-ing the node_modules
 	outputs.upToDateWhen {
 		(new File("$astParserDir/node_modules")).exists()
 	}
 
+	workingDir astParserDir
+	
 	if(isWinOs) {
 		commandLine "cmd", "/c", "npm", "install"
 	}
@@ -61,34 +54,35 @@ task runNpmInstallForAstParser (type: Exec) {
 	}
 }
 
+// if there are new dependencies the parser will run again
 task runAstParser (type: Exec) {
-	workingDir astParserDir
-
+	
+	inputs.files fileTree(dir: absoluteJsCodeDir)
 	outputs.files(bindingsFilePath)
-	outputs.upToDateWhen {
-		!generateInterfaceNamesList.didWork
-	}
-
+	
+	workingDir astParserDir
+	
 	if(isWinOs) {
-		commandLine "cmd", "/c", "node", "js_parser.js" , project.jsCodeDir, "../bindings.txt"
+		commandLine "cmd", "/c", "node", "js_parser.js" , absoluteJsCodeDir, "../bindings.txt"
 	}
 	else {
-		commandLine "node", "js_parser.js", project.jsCodeDir, "../bindings.txt"
+		commandLine "node", "js_parser.js", absoluteJsCodeDir, "../bindings.txt"
 	}
 }
 
+// run the static binding generator
 task generateBindings(type: JavaExec) {
 
 	inputs.files(bindingsFilePath)
-	outputs.dir(project.outDir)
+	outputs.dir(absoluteOutDir)
 
 	doFirst {
 		main "-jar"
 
 		def str = new LinkedList <String> ();
 		str.add("staticbindinggenerator.jar")
 		str.add(bindingsFilePath)
-		str.add(project.outDir)
+		str.add(absoluteOutDir)
 		str.addAll(project.jarFiles)
 
 		args str.toArray()

build/project-template-gradle/gradle.properties

@@ -1,2 +1,2 @@
-jsCodeDir=../../../src/main/assets/app
-outDir=../../src/main/java
+jsCodeDir=src/main/assets/app
+outDir=src/main/java