From 4c00060c7c603b9f6e069986f743f3bb19972d54 Mon Sep 17 00:00:00 2001
From: ABHAY SINGH <75938293+ABHAY0O7@users.noreply.github.com>
Date: Tue, 27 Jul 2021 14:47:14 +0530
Subject: [PATCH] Implemented abstract model of the plugin deployement

Implemented the default plugin, task and action classes to develope the plugin.
---
 depclean-gradle-plugin/build.gradle           |  1 +
 .../se/kth/depclean/DepCleanGradleAction.java | 19 +++++++++++
 .../se/kth/depclean/DepCleanGradlePlugin.java | 34 +++++++++++++++++++
 .../se/kth/depclean/DepCleanGradleTask.java   | 27 +++++++++++++++
 4 files changed, 81 insertions(+)
 create mode 100644 depclean-gradle-plugin/src/main/java/se/kth/depclean/DepCleanGradleAction.java
 create mode 100644 depclean-gradle-plugin/src/main/java/se/kth/depclean/DepCleanGradlePlugin.java
 create mode 100644 depclean-gradle-plugin/src/main/java/se/kth/depclean/DepCleanGradleTask.java

diff --git a/depclean-gradle-plugin/build.gradle b/depclean-gradle-plugin/build.gradle
index dd7ea3df..e246e6e3 100644
--- a/depclean-gradle-plugin/build.gradle
+++ b/depclean-gradle-plugin/build.gradle
@@ -14,6 +14,7 @@ repositories {
 dependencies {
     implementation(gradleApi())
     implementation('se.kth.castor:depclean-core:2.0.2-SNAPSHOT')
+    implementation('se.kth.castor:depclean-maven-plugin:2.0.2-SNAPSHOT')
     compileOnly('org.projectlombok:lombok:1.18.20')
     testImplementation 'org.junit.jupiter:junit-jupiter-api:5.7.0'
     testRuntimeOnly 'org.junit.jupiter:junit-jupiter-engine:5.7.0'
diff --git a/depclean-gradle-plugin/src/main/java/se/kth/depclean/DepCleanGradleAction.java b/depclean-gradle-plugin/src/main/java/se/kth/depclean/DepCleanGradleAction.java
new file mode 100644
index 00000000..a7877165
--- /dev/null
+++ b/depclean-gradle-plugin/src/main/java/se/kth/depclean/DepCleanGradleAction.java
@@ -0,0 +1,19 @@
+package se.kth.depclean;
+
+import lombok.SneakyThrows;
+import org.gradle.api.Action;
+import org.gradle.api.Project;
+import org.jetbrains.annotations.NotNull;
+
+
+/**
+ * Depclean default and only action.
+ */
+public class DepCleanGradleAction implements Action<Project> {
+
+  @SneakyThrows
+  @Override
+  public void execute(@NotNull Project project) {
+    // To be continued.
+  }
+}
diff --git a/depclean-gradle-plugin/src/main/java/se/kth/depclean/DepCleanGradlePlugin.java b/depclean-gradle-plugin/src/main/java/se/kth/depclean/DepCleanGradlePlugin.java
new file mode 100644
index 00000000..dcec0901
--- /dev/null
+++ b/depclean-gradle-plugin/src/main/java/se/kth/depclean/DepCleanGradlePlugin.java
@@ -0,0 +1,34 @@
+package se.kth.depclean;
+
+import org.gradle.api.Plugin;
+import org.gradle.api.Project;
+import org.jetbrains.annotations.NotNull;
+
+/**
+ * This plugin checks the bytecode of a gradle project and configure out whether a dependency
+ * is used in that project or not. After analysis, it also configures out the source of that
+ * dependency i.e. whether <br>
+ * <b>1)</b> It is declared directly in your build.gradle file or, <br>
+ * <b>2)</b> Inherited from any direct dependency or, <br>
+ * <b>3)</b> Just a transitive dependency.
+ */
+public class DepCleanGradlePlugin implements Plugin<Project> {
+
+  @Override
+  public void apply(@NotNull Project project) {
+    // Creating the default task.
+    createTask(project);
+  }
+
+  /**
+   * Creating a task that performs the DepClean default action.
+   *
+   * @param project The Gradle project.
+   */
+  public void createTask(final Project project) {
+    final String depCleanTaskName = "debloat";
+    DepCleanGradleTask task = project.getTasks().create(depCleanTaskName, DepCleanGradleTask.class);
+    task.setGroup("dependency management");
+    task.setDescription("Analyze the project byte-code and configure out the debloated dependencies.");
+  }
+}
diff --git a/depclean-gradle-plugin/src/main/java/se/kth/depclean/DepCleanGradleTask.java b/depclean-gradle-plugin/src/main/java/se/kth/depclean/DepCleanGradleTask.java
new file mode 100644
index 00000000..75c3907a
--- /dev/null
+++ b/depclean-gradle-plugin/src/main/java/se/kth/depclean/DepCleanGradleTask.java
@@ -0,0 +1,27 @@
+package se.kth.depclean;
+
+import org.gradle.api.Action;
+import org.gradle.api.DefaultTask;
+import org.gradle.api.Project;
+import org.gradle.api.tasks.TaskAction;
+
+/**
+ * Task that configures out the bloated dependencies.
+ */
+public class DepCleanGradleTask extends DefaultTask {
+
+  /**
+   * Action that analyzes the project dependencies and show the results.
+   */
+  @TaskAction
+  public void analyzeProject() {
+
+    getProject().getLogger().lifecycle("Starting DepClean dependency analysis");
+
+    // Applying the only default action on the project and it's sub-projects (if any).
+    Action<Project> defaultAction = new DepCleanGradleAction();
+    getProject().allprojects(defaultAction);
+
+  }
+
+}