| /* |
| * Copyright 2011 Google Inc. |
| * |
| * 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.gwt.dev.codeserver; |
| |
| import com.google.gwt.core.ext.TreeLogger; |
| import com.google.gwt.core.ext.TreeLogger.Type; |
| import com.google.gwt.core.ext.UnableToCompleteException; |
| import com.google.gwt.dev.util.Util; |
| |
| import java.io.File; |
| import java.io.IOException; |
| |
| /** |
| * The directory tree where Super Dev Mode keeps all the files for one GWT app. |
| * Each time we recompile the app, we create a new subdirectory (see {@link CompileDir}). |
| * In addition, there are some files that are shared between recompiles, such as |
| * the unit cache. |
| */ |
| class OutboxDir { |
| private static final String COMPILE_DIR_PREFIX = "compile-"; |
| private static final int MAX_CREATE_DIRECTORY_RETRIES = 50; |
| |
| private final File root; |
| private int nextCompileId = 1; |
| |
| /** |
| * @see #create |
| */ |
| private OutboxDir(File root) { |
| this.root = root; |
| } |
| |
| File getSpeedTracerLogFile() { |
| return new File(root, "speedtracer.html"); |
| } |
| |
| /** |
| * Creates a fresh, empty compile directory. |
| */ |
| CompileDir makeCompileDir(TreeLogger logger) |
| throws UnableToCompleteException { |
| |
| for (int i = 0; i < MAX_CREATE_DIRECTORY_RETRIES; i++) { |
| int candidateId = nextCompileId++; |
| File candidate = new File(root, COMPILE_DIR_PREFIX + candidateId); |
| try { |
| return CompileDir.create(candidate, logger); |
| } catch (UnableToCompleteException e) { |
| // try again |
| } |
| } |
| |
| logger.log(Type.ERROR, "Gave up trying to create a compile directory."); |
| throw new UnableToCompleteException(); |
| } |
| |
| /** |
| * Creates an outbox directory, doing any cleanup needed. |
| * @param dir the directory to use. It need not exist, but |
| * the parent dir should exist. |
| */ |
| static OutboxDir create(File dir, TreeLogger logger) throws IOException { |
| if (!dir.isDirectory() && !dir.mkdir()) { |
| throw new IOException("can't create app directory: " + dir); |
| } |
| |
| File[] children = dir.listFiles(); |
| if (children == null) { |
| throw new IOException("unable to list files in " + dir); |
| } |
| |
| // Try to clean up existing subdirectories. |
| // (This is not guaranteed to delete all directories on Windows if a directory is locked.) |
| for (File candidate : children) { |
| if (candidate.getName().startsWith(COMPILE_DIR_PREFIX)) { |
| Util.recursiveDelete(candidate, false); |
| if (candidate.exists()) { |
| logger.log(Type.WARN, "unable to delete '" + candidate + "' (skipped)"); |
| } |
| } |
| } |
| |
| return new OutboxDir(dir); |
| } |
| } |