1 /* 2 * Copyright (C) 2010 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.ant; 18 19 import com.android.sdklib.SdkConstants; 20 import com.android.sdklib.internal.project.ProjectProperties; 21 22 import org.apache.tools.ant.BuildException; 23 import org.apache.tools.ant.Project; 24 import org.apache.tools.ant.types.Path; 25 26 import java.io.File; 27 import java.io.FileInputStream; 28 import java.io.FileNotFoundException; 29 import java.io.IOException; 30 import java.util.Properties; 31 32 final class TaskHelper { 33 34 public final static String PROP_RULES_REV = "android.ant.rules.revision"; 35 getSdkLocation(Project antProject)36 static File getSdkLocation(Project antProject) { 37 // get the SDK location 38 String sdkLocation = antProject.getProperty(ProjectProperties.PROPERTY_SDK); 39 40 // check if it's valid and exists 41 if (sdkLocation == null || sdkLocation.length() == 0) { 42 // LEGACY support: project created with 1.6 or before may be using a different 43 // property to declare the location of the SDK. At this point, we cannot 44 // yet check which target is running so we check both always. 45 sdkLocation = antProject.getProperty(ProjectProperties.PROPERTY_SDK_LEGACY); 46 if (sdkLocation == null || sdkLocation.length() == 0) { 47 throw new BuildException("SDK Location is not set."); 48 } 49 } 50 51 File sdk = new File(sdkLocation); 52 if (sdk.isDirectory() == false) { 53 throw new BuildException(String.format("SDK Location '%s' is not valid.", sdkLocation)); 54 } 55 56 return sdk; 57 } 58 59 /** 60 * Returns the revision of the tools for a given SDK. 61 * @param sdkFile the {@link File} for the root folder of the SDK 62 * @return the tools revision or -1 if not found. 63 */ getToolsRevision(File sdkFile)64 static int getToolsRevision(File sdkFile) { 65 Properties p = new Properties(); 66 try{ 67 // tools folder must exist, or this custom task wouldn't run! 68 File toolsFolder= new File(sdkFile, SdkConstants.FD_TOOLS); 69 File sourceProp = new File(toolsFolder, SdkConstants.FN_SOURCE_PROP); 70 p.load(new FileInputStream(sourceProp)); 71 String value = p.getProperty("Pkg.Revision"); //$NON-NLS-1$ 72 if (value != null) { 73 return Integer.parseInt(value); 74 } 75 } catch (FileNotFoundException e) { 76 // couldn't find the file? return -1 below. 77 } catch (IOException e) { 78 // couldn't find the file? return -1 below. 79 } 80 81 return -1; 82 } 83 checkSinglePath(String attribute, Path path)84 static String checkSinglePath(String attribute, Path path) { 85 String[] paths = path.list(); 86 if (paths.length != 1) { 87 throw new BuildException(String.format( 88 "Value for '%1$s' is not valid. It must resolve to a single path", attribute)); 89 } 90 91 return paths[0]; 92 } 93 } 94