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[Android] Rework multidex and enable multidex for unit_tests_apk. (RE…
…LAND 2) this is a reland of https://codereview.chromium.org/1590243003/ BUG=272790 [email protected],[email protected],[email protected] Review URL: https://codereview.chromium.org/1594653002 Cr-Commit-Position: refs/heads/master@{#369906}
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base/android/java/src/org/chromium/base/multidex/ChromiumMultiDexInstaller.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,114 @@ | ||
| // Copyright 2015 The Chromium Authors. All rights reserved. | ||
| // Use of this source code is governed by a BSD-style license that can be | ||
| // found in the LICENSE file. | ||
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| package org.chromium.base.multidex; | ||
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| import android.app.ActivityManager; | ||
| import android.app.ActivityManager.RunningAppProcessInfo; | ||
| import android.content.Context; | ||
| import android.content.pm.ApplicationInfo; | ||
| import android.content.pm.PackageManager; | ||
| import android.os.Build; | ||
| import android.support.multidex.MultiDex; | ||
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| import org.chromium.base.Log; | ||
| import org.chromium.base.VisibleForTesting; | ||
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| import java.lang.reflect.InvocationTargetException; | ||
| import java.lang.reflect.Method; | ||
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| /** | ||
| * Performs multidex installation for non-isolated processes. | ||
| */ | ||
| public class ChromiumMultiDexInstaller { | ||
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| private static final String TAG = "base_multidex"; | ||
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| /** | ||
| * Suffix for the meta-data tag in the AndroidManifext.xml that determines whether loading | ||
| * secondary dexes should be skipped for a given process name. | ||
| */ | ||
| private static final String IGNORE_MULTIDEX_KEY = ".ignore_multidex"; | ||
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| /** | ||
| * Installs secondary dexes if possible/necessary. | ||
| * | ||
| * Isolated processes (e.g. renderer processes) can't load secondary dex files on | ||
| * K and below, so we don't even try in that case. | ||
| * | ||
| * In release builds of app apks (as opposed to test apks), this is a no-op because: | ||
| * - multidex isn't necessary in release builds because we run proguard there and | ||
| * thus aren't threatening to hit the dex limit; and | ||
| * - calling MultiDex.install, even in the absence of secondary dexes, causes a | ||
| * significant regression in start-up time (crbug.com/525695). | ||
| * | ||
| * @param context The application context. | ||
| */ | ||
| @VisibleForTesting | ||
| public static void install(Context context) { | ||
| if (!ChromiumMultiDex.isMultidexEnabled()) return; | ||
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| // TODO(jbudorick): Back out this version check once support for K & below works. | ||
| // http://crbug.com/512357 | ||
| if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP | ||
| && !shouldInstallMultiDex(context)) { | ||
| Log.i(TAG, "Skipping multidex installation: not needed for process."); | ||
| } else { | ||
| MultiDex.install(context); | ||
| Log.i(TAG, "Completed multidex installation."); | ||
| } | ||
| } | ||
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| private static String getProcessName(Context context) { | ||
| try { | ||
| String currentProcessName = null; | ||
| int pid = android.os.Process.myPid(); | ||
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| ActivityManager manager = | ||
| (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE); | ||
| for (RunningAppProcessInfo processInfo : manager.getRunningAppProcesses()) { | ||
| if (processInfo.pid == pid) { | ||
| currentProcessName = processInfo.processName; | ||
| break; | ||
| } | ||
| } | ||
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| return currentProcessName; | ||
| } catch (SecurityException ex) { | ||
| return null; | ||
| } | ||
| } | ||
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| // Determines whether MultiDex should be installed for the current process. Isolated | ||
| // Processes should skip MultiDex as they can not actually access the files on disk. | ||
| // Privileged processes need ot have all of their dependencies in the MainDex for | ||
| // performance reasons. | ||
| private static boolean shouldInstallMultiDex(Context context) { | ||
| try { | ||
| Method isIsolatedMethod = | ||
| android.os.Process.class.getMethod("isIsolated"); | ||
| Object retVal = isIsolatedMethod.invoke(null); | ||
| if (retVal != null && retVal instanceof Boolean && ((Boolean) retVal)) { | ||
| return false; | ||
| } | ||
| } catch (IllegalAccessException | IllegalArgumentException | ||
| | InvocationTargetException | NoSuchMethodException e) { | ||
| // Ignore and fall back to checking the app processes. | ||
| } | ||
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| String currentProcessName = getProcessName(context); | ||
| if (currentProcessName == null) return true; | ||
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| PackageManager packageManager = context.getPackageManager(); | ||
| try { | ||
| ApplicationInfo appInfo = packageManager.getApplicationInfo(context.getPackageName(), | ||
| PackageManager.GET_META_DATA); | ||
| if (appInfo == null || appInfo.metaData == null) return true; | ||
| return !appInfo.metaData.getBoolean(currentProcessName + IGNORE_MULTIDEX_KEY, false); | ||
| } catch (PackageManager.NameNotFoundException e) { | ||
| return true; | ||
| } | ||
| } | ||
|
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| } |
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