Merge "Prefix start replication capability with plugin name"

gerrit-server/src/main/java/com/google/gerrit/server/schema/SchemaVersion.java

@@ -32,7 +32,7 @@ import java.util.List;
 /** A version of the database schema. */
 public abstract class SchemaVersion {
   /** The current schema version. */
-  public static final Class<Schema_80> C = Schema_80.class;
+  public static final Class<Schema_81> C = Schema_81.class;
 
   public static class Module extends AbstractModule {
     @Override

gerrit-server/src/main/java/com/google/gerrit/server/schema/Schema_81.java

@@ -0,0 +1,159 @@
+// Copyright (C) 2013 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gerrit.server.schema;
+
+import com.google.gerrit.common.data.AccessSection;
+import com.google.gerrit.common.data.Permission;
+import com.google.gerrit.reviewdb.server.ReviewDb;
+import com.google.gerrit.server.GerritPersonIdent;
+import com.google.gerrit.server.config.AllProjectsName;
+import com.google.gerrit.server.config.SitePaths;
+import com.google.gerrit.server.extensions.events.GitReferenceUpdated;
+import com.google.gerrit.server.git.GitRepositoryManager;
+import com.google.gerrit.server.git.MetaDataUpdate;
+import com.google.gerrit.server.git.ProjectConfig;
+import com.google.gwtorm.server.OrmException;
+import com.google.inject.Inject;
+import com.google.inject.Provider;
+
+import org.eclipse.jgit.errors.ConfigInvalidException;
+import org.eclipse.jgit.errors.RepositoryNotFoundException;
+import org.eclipse.jgit.lib.PersonIdent;
+import org.eclipse.jgit.lib.Repository;
+
+import java.io.File;
+import java.io.FileFilter;
+import java.io.IOException;
+import java.sql.SQLException;
+
+public class Schema_81 extends SchemaVersion {
+
+  private final File pluginsDir;
+  private final GitRepositoryManager mgr;
+  private final AllProjectsName allProjects;
+  private final PersonIdent serverUser;
+
+  @Inject
+  Schema_81(Provider<Schema_80> prior, SitePaths sitePaths,
+      AllProjectsName allProjects, GitRepositoryManager mgr,
+      @GerritPersonIdent PersonIdent serverUser) {
+    super(prior);
+    this.pluginsDir = sitePaths.plugins_dir;
+    this.mgr = mgr;
+    this.allProjects = allProjects;
+    this.serverUser = serverUser;
+  }
+
+  @Override
+  protected void migrateData(ReviewDb db, UpdateUI ui) throws OrmException,
+      SQLException {
+    try {
+      migrateStartReplicationCapability(db, scanForReplicationPlugin());
+    } catch (RepositoryNotFoundException e) {
+      throw new OrmException(e);
+    } catch (SQLException e) {
+      throw new OrmException(e);
+    } catch (IOException e) {
+      throw new OrmException(e);
+    } catch (ConfigInvalidException e) {
+      throw new OrmException(e);
+    }
+  }
+
+  private File[] scanForReplicationPlugin() {
+    File[] matches = null;
+    if (pluginsDir != null && pluginsDir.exists()) {
+      matches = pluginsDir.listFiles(new FileFilter() {
+        @Override
+        public boolean accept(File pathname) {
+          String n = pathname.getName();
+          return (n.endsWith(".jar") || n.endsWith(".jar.disabled"))
+              && pathname.isFile() && n.indexOf("replication") >= 0;
+        }
+      });
+    }
+    return matches;
+  }
+
+  private void migrateStartReplicationCapability(ReviewDb db, File[] matches)
+      throws SQLException, RepositoryNotFoundException, IOException,
+      ConfigInvalidException {
+    Description d = new Description();
+    if (matches == null || matches.length == 0) {
+      d.what = Description.Action.REMOVE;
+    } else {
+      d.what = Description.Action.RENAME;
+      d.prefix = nameOf(matches[0]);
+    }
+    migrateStartReplicationCapability(db, d);
+  }
+
+  private void migrateStartReplicationCapability(ReviewDb db, Description d)
+      throws SQLException, RepositoryNotFoundException, IOException,
+      ConfigInvalidException {
+    Repository git = mgr.openRepository(allProjects);
+    try {
+      MetaDataUpdate md =
+          new MetaDataUpdate(GitReferenceUpdated.DISABLED, allProjects, git);
+      md.getCommitBuilder().setAuthor(serverUser);
+      md.getCommitBuilder().setCommitter(serverUser);
+      ProjectConfig config = ProjectConfig.read(md);
+      AccessSection capabilities =
+          config.getAccessSection(AccessSection.GLOBAL_CAPABILITIES);
+      Permission startReplication =
+          capabilities.getPermission("startReplication");
+      if (startReplication == null) {
+        return;
+      }
+      String msg = null;
+      switch (d.what) {
+        case REMOVE:
+          capabilities.remove(startReplication);
+          msg = "Remove startReplication capability, plugin not installed\n";
+          break;
+        case RENAME:
+          capabilities.remove(startReplication);
+          Permission pluginStartReplication =
+              capabilities.getPermission(
+                  String.format("%s-startReplication", d.prefix), true);
+          pluginStartReplication.setRules(startReplication.getRules());
+          msg = "Rename startReplication capability to match updated plugin\n";
+          break;
+      }
+      config.replace(capabilities);
+      md.setMessage(msg);
+      config.commit(md);
+    } finally {
+      git.close();
+    }
+  }
+
+  private static String nameOf(File jar) {
+    String name = jar.getName();
+    if (name.endsWith(".disabled")) {
+      name = name.substring(0, name.lastIndexOf('.'));
+    }
+    int ext = name.lastIndexOf('.');
+    return 0 < ext ? name.substring(0, ext) : name;
+  }
+
+  private static class Description {
+    private enum Action {
+      REMOVE, RENAME
+    }
+    Action what;
+    String prefix;
+  }
+}