1 files changed, 64 insertions, 0 deletions
diff --git a/java/com/google/gerrit/server/git/GarbageCollectionLogFile.java b/java/com/google/gerrit/server/git/GarbageCollectionLogFile.java
new file mode 100644
index 0000000000..b711708512
--- /dev/null
+++ b/java/com/google/gerrit/server/git/GarbageCollectionLogFile.java
@@ -0,0 +1,64 @@
+// Copyright (C) 2012 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.git;
+
+import com.google.common.flogger.backend.Platform;
+import com.google.gerrit.extensions.events.LifecycleListener;
+import com.google.gerrit.server.config.GerritServerConfig;
+import com.google.gerrit.server.config.SitePaths;
+import com.google.gerrit.server.util.SystemLog;
+import com.google.inject.Inject;
+import java.nio.file.Path;
+import org.apache.log4j.LogManager;
+import org.apache.log4j.Logger;
+import org.apache.log4j.PatternLayout;
+import org.eclipse.jgit.lib.Config;
+
+public class GarbageCollectionLogFile implements LifecycleListener {
+  private static final String LOG_NAME = "gc_log";
+
+  @Inject
+  public GarbageCollectionLogFile(SitePaths sitePaths, @GerritServerConfig Config config) {
+    if (SystemLog.shouldConfigure()) {
+      initLogSystem(sitePaths.logs_dir, config.getBoolean("log", "rotate", true));
+    }
+  }
+
+  @Override
+  public void start() {}
+
+  @Override
+  public void stop() {
+    getLogger(GarbageCollection.class).removeAllAppenders();
+    getLogger(GarbageCollectionRunner.class).removeAllAppenders();
+  }
+
+  private static void initLogSystem(Path logdir, boolean rotate) {
+    initGcLogger(logdir, rotate, getLogger(GarbageCollection.class));
+    initGcLogger(logdir, rotate, getLogger(GarbageCollectionRunner.class));
+  }
+
+  private static Logger getLogger(Class<?> clazz) {
+    return LogManager.getLogger(Platform.getBackend(clazz.getName()).getLoggerName());
+  }
+
+  private static void initGcLogger(Path logdir, boolean rotate, Logger gcLogger) {
+    gcLogger.removeAllAppenders();
+    gcLogger.addAppender(
+        SystemLog.createAppender(
+            logdir, LOG_NAME, new PatternLayout("[%d] %-5p %x: %m%n"), rotate));
+    gcLogger.setAdditivity(false);
+  }
+}