Job for purging unused releases

plugins/nexus-coreui-plugin/src/main/java/org/sonatype/nexus/coreui/TaskComponent.groovy

@@ -470,4 +470,18 @@ class TaskComponent
       throw e
     }
   }
+
+  /**
+   * Retrieve a list of versions used for the purge of maven releases
+   */
+  @DirectMethod
+  @Timed
+  @ExceptionMetered
+  @RequiresPermissions('nexus:tasks:read')
+  List<TaskOptionPurgeXO> readOptionsPurgeTask()
+  {
+        return [
+                new TaskOptionPurgeXO(name:  'version', description :"Version"),
+                new TaskOptionPurgeXO(name : 'dateRelease', description:  "Release date")]
+  }
 }

plugins/nexus-coreui-plugin/src/main/java/org/sonatype/nexus/coreui/TaskOptionPurgeXO.groovy

@@ -0,0 +1,23 @@
+/*
+ * Sonatype Nexus (TM) Open Source Version
+ * Copyright (c) 2008-present Sonatype, Inc.
+ * All rights reserved. Includes the third-party code listed at http://links.sonatype.com/products/nexus/oss/attributions.
+ *
+ * This program and the accompanying materials are made available under the terms of the Eclipse Public License Version 1.0,
+ * which accompanies this distribution and is available at http://www.eclipse.org/legal/epl-v10.html.
+ *
+ * Sonatype Nexus (TM) Professional Version is available from Sonatype, Inc. "Sonatype" and "Sonatype Nexus" are trademarks
+ * of Sonatype, Inc. Apache Maven is a trademark of the Apache Software Foundation. M2eclipse is a trademark of the
+ * Eclipse Foundation. All other trademarks are the property of their respective owners.
+ */
+package org.sonatype.nexus.coreui
+
+import groovy.transform.ToString
+
+@ToString(includePackage = false, includeNames = true)
+class TaskOptionPurgeXO {
+
+    String name
+
+    String description
+}

plugins/nexus-coreui-plugin/src/main/resources/static/rapture/NX/coreui/controller/Tasks.js

@@ -33,7 +33,8 @@ Ext.define('NX.coreui.controller.Tasks', {
   ],
   stores: [
     'Task',
-    'TaskType'
+    'TaskType',
+      'TaskOptionPurge'
   ],
   models: [
     'Task'

plugins/nexus-coreui-plugin/src/main/resources/static/rapture/NX/coreui/model/TaskOptionPurge.js

@@ -0,0 +1,24 @@
+/*
+ * Sonatype Nexus (TM) Open Source Version
+ * Copyright (c) 2008-present Sonatype, Inc.
+ * All rights reserved. Includes the third-party code listed at http://links.sonatype.com/products/nexus/oss/attributions.
+ *
+ * This program and the accompanying materials are made available under the terms of the Eclipse Public License Version 1.0,
+ * which accompanies this distribution and is available at http://www.eclipse.org/legal/epl-v10.html.
+ *
+ * Sonatype Nexus (TM) Professional Version is available from Sonatype, Inc. "Sonatype" and "Sonatype Nexus" are trademarks
+ * of Sonatype, Inc. Apache Maven is a trademark of the Apache Software Foundation. M2eclipse is a trademark of the
+ * Eclipse Foundation. All other trademarks are the property of their respective owners.
+ */
+/**
+ * Task type model.
+ *
+ * @since 3.7
+ */
+Ext.define('NX.coreui.model.TaskOptionPurge', {
+    extend: 'Ext.data.Model',
+    fields: [
+        {name: 'name', type: 'string', sortType: 'asUCText'},
+        {name: 'description', type: 'string', sortType: 'asUCText'}
+    ]
+});

plugins/nexus-coreui-plugin/src/main/resources/static/rapture/NX/coreui/store/TaskOptionPurge.js

@@ -0,0 +1,39 @@
+/*
+ * Sonatype Nexus (TM) Open Source Version
+ * Copyright (c) 2008-present Sonatype, Inc.
+ * All rights reserved. Includes the third-party code listed at http://links.sonatype.com/products/nexus/oss/attributions.
+ *
+ * This program and the accompanying materials are made available under the terms of the Eclipse Public License Version 1.0,
+ * which accompanies this distribution and is available at http://www.eclipse.org/legal/epl-v10.html.
+ *
+ * Sonatype Nexus (TM) Professional Version is available from Sonatype, Inc. "Sonatype" and "Sonatype Nexus" are trademarks
+ * of Sonatype, Inc. Apache Maven is a trademark of the Apache Software Foundation. M2eclipse is a trademark of the
+ * Eclipse Foundation. All other trademarks are the property of their respective owners.
+ */
+/*global Ext, NX*/
+
+/**
+ * Task type store.
+ *
+ * @since 3.0
+ */
+Ext.define('NX.coreui.store.TaskOptionPurge', {
+    extend: 'Ext.data.Store',
+    model: 'NX.coreui.model.TaskOptionPurge',
+
+    proxy: {
+        type: 'direct',
+        paramsAsHash: false,
+
+        api: {
+            read: 'NX.direct.coreui_Task.readOptionsPurgeTask'
+        },
+
+        reader: {
+            type: 'json',
+            root: 'data',
+            idProperty : 'name',
+            successProperty: 'success'
+        }
+    }
+});

plugins/nexus-repository-maven/src/main/java/org/sonatype/nexus/repository/maven/PurgeUnusedReleasesFacet.java

@@ -0,0 +1,33 @@
+/*
+ * Sonatype Nexus (TM) Open Source Version
+ * Copyright (c) 2008-present Sonatype, Inc.
+ * All rights reserved. Includes the third-party code listed at http://links.sonatype.com/products/nexus/oss/attributions.
+ *
+ * This program and the accompanying materials are made available under the terms of the Eclipse Public License Version 1.0,
+ * which accompanies this distribution and is available at http://www.eclipse.org/legal/epl-v10.html.
+ *
+ * Sonatype Nexus (TM) Professional Version is available from Sonatype, Inc. "Sonatype" and "Sonatype Nexus" are trademarks
+ * of Sonatype, Inc. Apache Maven is a trademark of the Apache Software Foundation. M2eclipse is a trademark of the
+ * Eclipse Foundation. All other trademarks are the property of their respective owners.
+ */
+package org.sonatype.nexus.repository.maven;
+
+import org.sonatype.nexus.repository.Facet;
+
+/**
+ * Facet for purging unused Maven releases.
+ *
+ * @since 3.7
+ */
+@Facet.Exposed
+public interface PurgeUnusedReleasesFacet extends Facet {
+
+
+    /**
+     * Purge the unused releases and keep the number of releases in parameter
+     * @param numberOfReleasesToKeep - the number of releases to keep
+     * @param option - Option used for purge
+     */
+    void purgeUnusedReleases(int numberOfReleasesToKeep, String option);
+
+}

plugins/nexus-repository-maven/src/main/java/org/sonatype/nexus/repository/maven/internal/MavenFacetUtils.java

@@ -27,12 +27,14 @@
 import javax.annotation.Nonnull;
 import javax.annotation.Nullable;
 
+import org.sonatype.nexus.common.collect.NestedAttributesMap;
 import org.sonatype.nexus.common.hash.HashAlgorithm;
 import org.sonatype.nexus.repository.Repository;
 import org.sonatype.nexus.repository.maven.MavenFacet;
 import org.sonatype.nexus.repository.maven.MavenPath;
 import org.sonatype.nexus.repository.maven.MavenPath.Coordinates;
 import org.sonatype.nexus.repository.maven.MavenPath.HashType;
+import org.sonatype.nexus.repository.maven.internal.hosted.metadata.MetadataUtils;
 import org.sonatype.nexus.repository.storage.Asset;
 import org.sonatype.nexus.repository.storage.Bucket;
 import org.sonatype.nexus.repository.storage.Component;
@@ -47,10 +49,13 @@
 import com.google.common.hash.HashCode;
 import com.google.common.hash.HashingOutputStream;
 import org.joda.time.DateTime;
+import org.sonatype.nexus.transaction.UnitOfWork;
 
 import static java.util.Collections.singletonList;
 import static org.sonatype.nexus.common.app.VersionComparator.version;
+import static org.sonatype.nexus.repository.maven.internal.Attributes.P_ARTIFACT_ID;
 import static org.sonatype.nexus.repository.maven.internal.Attributes.P_BASE_VERSION;
+import static org.sonatype.nexus.repository.maven.internal.Attributes.P_GROUP_ID;
 import static org.sonatype.nexus.repository.maven.internal.Constants.SNAPSHOT_VERSION_SUFFIX;
 import static org.sonatype.nexus.repository.storage.ComponentEntityAdapter.P_GROUP;
 import static org.sonatype.nexus.repository.storage.ComponentEntityAdapter.P_VERSION;
@@ -219,4 +224,27 @@ public static boolean deleteWithHashes(final MavenFacet mavenFacet, final MavenP
     }
     return mavenFacet.delete(paths.toArray(new MavenPath[paths.size()]));
   }
+
+  public static String deleteComponent(final StorageTx tx,
+                                      MavenFacet facet,
+                                      Component component) {
+    tx.deleteComponent(component);
+
+    NestedAttributesMap attributes = component.formatAttributes();
+    String groupId = attributes.get(P_GROUP_ID, String.class);
+    String artifactId = attributes.get(P_ARTIFACT_ID, String.class);
+    String baseVersion = attributes.get(P_BASE_VERSION, String.class);
+
+    try {
+      // We have to delete all metadata through GAV levels and rebuild in the next step, as the MetadataRebuilder
+      // isn't meant to remove metadata that has been orphaned by the deletion of a component
+      MavenFacetUtils.deleteWithHashes(facet, MetadataUtils.metadataPath(groupId, artifactId, baseVersion));
+      MavenFacetUtils.deleteWithHashes(facet, MetadataUtils.metadataPath(groupId, artifactId, null));
+      MavenFacetUtils.deleteWithHashes(facet, MetadataUtils.metadataPath(groupId, null, null));
+    }
+    catch (IOException e) {
+      throw new RuntimeException(e);
+    }
+    return groupId;
+  }
 }