Initial commit

plugin-build/plugin/src/main/java/com/ncorti/kotlin/gradle/template/plugin/TemplateExampleTask.kt

@@ -0,0 +1,43 @@
+package com.ncorti.kotlin.gradle.template.plugin
+
+import org.gradle.api.DefaultTask
+import org.gradle.api.file.RegularFileProperty
+import org.gradle.api.provider.Property
+import org.gradle.api.tasks.Input
+import org.gradle.api.tasks.Optional
+import org.gradle.api.tasks.OutputFile
+import org.gradle.api.tasks.TaskAction
+import org.gradle.api.tasks.options.Option
+
+abstract class TemplateExampleTask : DefaultTask() {
+
+    init {
+        description = "Just a sample template task"
+
+        // Don't forget to set the group here.
+        // group = BasePlugin.BUILD_GROUP
+    }
+
+    @get:Input
+    @get:Option(option = "message", description = "A message to be printed in the output file")
+    abstract val message: Property<String>
+
+    @get:Input
+    @get:Option(option = "tag", description = "A Tag to be used for debug and in the output file")
+    @get:Optional
+    abstract val tag: Property<String>
+
+    @get:OutputFile
+    abstract val outputFile: RegularFileProperty
+
+    @TaskAction
+    fun sampleAction() {
+        val prettyTag = tag.orNull?.let { "[$it]" } ?: ""
+
+        logger.lifecycle("$prettyTag message is: ${message.orNull}")
+        logger.lifecycle("$prettyTag tag is: ${tag.orNull}")
+        logger.lifecycle("$prettyTag outputFile is: ${outputFile.orNull}")
+
+        outputFile.get().asFile.writeText("$prettyTag ${message.get()}")
+    }
+}

plugin-build/plugin/src/main/java/com/ncorti/kotlin/gradle/template/plugin/TemplateExtension.kt

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+package com.ncorti.kotlin.gradle.template.plugin
+
+import org.gradle.api.Project
+import org.gradle.api.file.RegularFileProperty
+import org.gradle.api.provider.Property
+import javax.inject.Inject
+
+const val DEFAULT_OUTPUT_FILE = "template-example.txt"
+
+@Suppress("UnnecessaryAbstractClass")
+abstract class TemplateExtension @Inject constructor(project: Project) {
+
+    private val objects = project.objects
+
+    // Example of a property that is mandatory. The task will
+    // fail if this property is not set as is annotated with @Optional.
+    val message: Property<String> = objects.property(String::class.java)
+
+    // Example of a property that is optional.
+    val tag: Property<String> = objects.property(String::class.java)
+
+    // Example of a property with a default set with .convention
+    val outputFile: RegularFileProperty = objects.fileProperty().convention(
+        project.layout.buildDirectory.file(DEFAULT_OUTPUT_FILE)
+    )
+}

plugin-build/plugin/src/main/java/com/ncorti/kotlin/gradle/template/plugin/TemplatePlugin.kt

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+package com.ncorti.kotlin.gradle.template.plugin
+
+import org.gradle.api.Plugin
+import org.gradle.api.Project
+
+const val EXTENSION_NAME = "templateExampleConfig"
+const val TASK_NAME = "templateExample"
+
+abstract class TemplatePlugin : Plugin<Project> {
+    override fun apply(project: Project) {
+        // Add the 'template' extension object
+        val extension = project.extensions.create(EXTENSION_NAME, TemplateExtension::class.java, project)
+
+        // Add a task that uses configuration from the extension object
+        project.tasks.register(TASK_NAME, TemplateExampleTask::class.java) {
+            it.tag.set(extension.tag)
+            it.message.set(extension.message)
+            it.outputFile.set(extension.outputFile)
+        }
+    }
+}

plugin-build/plugin/src/test/java/com/ncorti/kotlin/gradle/template/plugin/TemplatePluginTest.kt

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+package com.ncorti.kotlin.gradle.template.plugin
+
+import org.gradle.testfixtures.ProjectBuilder
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertNotNull
+import org.junit.Test
+import java.io.File
+
+class TemplatePluginTest {
+
+    @Test
+    fun `plugin is applied correctly to the project`() {
+        val project = ProjectBuilder.builder().build()
+        project.pluginManager.apply("com.ncorti.kotlin.gradle.template.plugin")
+
+        assert(project.tasks.getByName("templateExample") is TemplateExampleTask)
+    }
+
+    @Test
+    fun `extension templateExampleConfig is created correctly`() {
+        val project = ProjectBuilder.builder().build()
+        project.pluginManager.apply("com.ncorti.kotlin.gradle.template.plugin")
+
+        assertNotNull(project.extensions.getByName("templateExampleConfig"))
+    }
+
+    @Test
+    fun `parameters are passed correctly from extension to task`() {
+        val project = ProjectBuilder.builder().build()
+        project.pluginManager.apply("com.ncorti.kotlin.gradle.template.plugin")
+        val aFile = File(project.projectDir, ".tmp")
+        (project.extensions.getByName("templateExampleConfig") as TemplateExtension).apply {
+            tag.set("a-sample-tag")
+            message.set("just-a-message")
+            outputFile.set(aFile)
+        }
+
+        val task = project.tasks.getByName("templateExample") as TemplateExampleTask
+
+        assertEquals("a-sample-tag", task.tag.get())
+        assertEquals("just-a-message", task.message.get())
+        assertEquals(aFile, task.outputFile.get().asFile)
+    }
+}