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/*
* Copyright (C) 2017 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.android.tradefed.util;
import com.android.tradefed.build.IBuildInfo;
import com.android.tradefed.build.IDeviceBuildInfo;
import com.android.tradefed.log.LogUtil.CLog;
import com.google.common.annotations.VisibleForTesting;
import java.io.File;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
/** Utility class for making system calls. */
public class SystemUtil {
@VisibleForTesting static SystemUtil singleton = new SystemUtil();
// Environment variables for the test cases directory in target out directory and host out
// directory.
@VisibleForTesting
static final String ENV_ANDROID_TARGET_OUT_TESTCASES = "ANDROID_TARGET_OUT_TESTCASES";
@VisibleForTesting
static final String ENV_ANDROID_HOST_OUT_TESTCASES = "ANDROID_HOST_OUT_TESTCASES";
static final String ENV_ANDROID_PRODUCT_OUT = "ANDROID_PRODUCT_OUT";
private static final String HOST_TESTCASES = "host/testcases";
private static final String TARGET_TESTCASES = "target/testcases";
/**
* Get the value of an environment variable.
*
* <p>The wrapper function is created for mock in unit test.
*
* @param name the name of the environment variable.
* @return {@link String} value of the given environment variable.
*/
@VisibleForTesting
String getEnv(String name) {
return System.getenv(name);
}
/** Get a list of {@link File} pointing to tests directories external to Tradefed. */
public static List<File> getExternalTestCasesDirs() {
List<File> testCasesDirs = new ArrayList<File>();
// TODO(b/36782030): Support running both HOST and TARGET tests.
List<String> testCasesDirNames =
// List order matters. ConfigurationFactory caller uses first dir with test config.
Arrays.asList(
singleton.getEnv(ENV_ANDROID_TARGET_OUT_TESTCASES),
singleton.getEnv(ENV_ANDROID_HOST_OUT_TESTCASES));
for (String testCasesDirName : testCasesDirNames) {
if (testCasesDirName != null) {
File dir = new File(testCasesDirName);
if (dir.exists() && dir.isDirectory()) {
CLog.d("Found test case dir: %s", testCasesDirName);
testCasesDirs.add(dir);
} else {
CLog.w(
"Path %s for test cases directory does not exist or it's not a "
+ "directory.",
testCasesDirName);
}
}
}
return testCasesDirs;
}
/**
* Get a list of {@link File} of the test cases directories
*
* @param buildInfo the build artifact information. Set it to null if build info is not
* available or there is no need to get test cases directories from build info.
* @return a list of {@link File} of directories of the test cases folder of build output, based
* on the value of environment variables and the given build info.
*/
public static List<File> getTestCasesDirs(IBuildInfo buildInfo) {
List<File> testCasesDirs = new ArrayList<File>();
testCasesDirs.addAll(getExternalTestCasesDirs());
// TODO: Remove this logic after Versioned TF V2 is implemented, in which staging build
// artifact will be done by the parent process, and the test cases dirs will be set by
// environment variables.
// Add tests dir from build info.
if (buildInfo instanceof IDeviceBuildInfo) {
IDeviceBuildInfo deviceBuildInfo = (IDeviceBuildInfo) buildInfo;
File testsDir = deviceBuildInfo.getTestsDir();
// Add all possible paths to the testcases directory list.
if (testsDir != null) {
testCasesDirs.addAll(
Arrays.asList(
testsDir,
FileUtil.getFileForPath(testsDir, HOST_TESTCASES),
FileUtil.getFileForPath(testsDir, TARGET_TESTCASES)));
}
}
return testCasesDirs;
}
/**
* Gets the product specific output dir from an Android build tree. Typically this location
* contains images for various device partitions, bootloader, radio and so on.
*
* <p>Note: the method does not guarantee that this path exists.
*
* @return the location of the output dir or <code>null</code> if the current build is not
*/
public static File getProductOutputDir() {
String path = singleton.getEnv(ENV_ANDROID_PRODUCT_OUT);
if (path == null) {
return null;
} else {
return new File(path);
}
}
}
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