Add adb command for overriding platform compat config (0552d04f) · Commits · e / os / android_frameworks_base

services/core/java/com/android/server/am/ActivityManagerShellCommand.java

+49 −0

Original line number	Diff line number	Diff line
		@@ -88,6 +88,7 @@ import android.view.Display;
		import com.android.internal.util.HexDump;
		import com.android.internal.util.MemInfoReader;
		import com.android.internal.util.Preconditions;
		import com.android.server.compat.CompatConfig;

		import java.io.BufferedReader;
		import java.io.File;
		@@ -288,6 +289,8 @@ final class ActivityManagerShellCommand extends ShellCommand {
		return runNoHomeScreen(pw);
		case "wait-for-broadcast-idle":
		return runWaitForBroadcastIdle(pw);
		case "compat":
		return runCompat(pw);
		default:
		return handleDefaultCommands(cmd);
		}
		@@ -2865,6 +2868,50 @@ final class ActivityManagerShellCommand extends ShellCommand {
		return 0;
		}

		private int runCompat(PrintWriter pw) {
		final CompatConfig config = CompatConfig.get();
		String toggleValue = getNextArgRequired();
		long changeId;
		String changeIdString = getNextArgRequired();
		try {
		changeId = Long.parseLong(changeIdString);
		} catch (NumberFormatException e) {
		changeId = config.lookupChangeId(changeIdString);
		}
		if (changeId == -1) {
		pw.println("Unknown or invalid change: '" + changeIdString + "'.");
		}
		String packageName = getNextArgRequired();
		switch(toggleValue) {
		case "enable":
		if (!config.addOverride(changeId, packageName, true)) {
		pw.println("Warning! Change " + changeId + " is not known yet. Enabling it"
		+ " could have no effect.");
		}
		pw.println("Enabled change " + changeId + " for " + packageName + ".");
		return 0;
		case "disable":
		if (!config.addOverride(changeId, packageName, false)) {
		pw.println("Warning! Change " + changeId + " is not known yet. Disabling it"
		+ " could have no effect.");
		}
		pw.println("Disabled change " + changeId + " for " + packageName + ".");
		return 0;
		case "reset":
		if (config.removeOverride(changeId, packageName)) {
		pw.println("Reset change " + changeId + " for " + packageName
		+ " to default value.");
		} else {
		pw.println("No override exists for changeId " + changeId + ".");
		}
		return 0;
		default:
		pw.println("Invalid toggle value: '" + toggleValue + "'.");
		}
		return -1;
		}


		private Resources getResources(PrintWriter pw) throws RemoteException {
		// system resources does not contain all the device configuration, construct it manually.
		Configuration config = mInterface.getConfiguration();
		@@ -3170,6 +3217,8 @@ final class ActivityManagerShellCommand extends ShellCommand {
		pw.println(" without restarting any processes.");
		pw.println(" write");
		pw.println(" Write all pending state to storage.");
		pw.println(" compat enable\|disable\|reset <CHANGE_ID\|CHANGE_NAME> <PACKAGE_NAME>");
		pw.println(" Toggles a change either by id or by name for <PACKAGE_NAME>.");
		pw.println();
		Intent.printIntentArgsHelp(pw, "");
		}

services/core/java/com/android/server/compat/CompatConfig.java

+11 −3

Original line number	Diff line number	Diff line
		@@ -128,20 +128,24 @@ public final class CompatConfig {
		* <p>Note, package overrides are not persistent and will be lost on system or runtime restart.
		*
		* @param changeId The ID of the change to be overridden. Note, this call will succeed even if
		* this change is not known; it will only have any affect if any code in the
		* this change is not known; it will only have any effect if any code in the
		* platform is gated on the ID given.
		* @param packageName The app package name to override the change for.
		* @param enabled If the change should be enabled or disabled.
		* @return {@code true} if the change existed before adding the override.
		*/
		public void addOverride(long changeId, String packageName, boolean enabled) {
		public boolean addOverride(long changeId, String packageName, boolean enabled) {
		boolean alreadyKnown = true;
		synchronized (mChanges) {
		CompatChange c = mChanges.get(changeId);
		if (c == null) {
		alreadyKnown = false;
		c = new CompatChange(changeId);
		addChange(c);
		}
		c.addPackageOverride(packageName, enabled);
		}
		return alreadyKnown;
		}

		/**
		@@ -151,14 +155,18 @@ public final class CompatConfig {
		*
		* @param changeId The ID of the change that was overridden.
		* @param packageName The app package name that was overridden.
		* @return {@code true} if an override existed;
		*/
		public void removeOverride(long changeId, String packageName) {
		public boolean removeOverride(long changeId, String packageName) {
		boolean overrideExists = false;
		synchronized (mChanges) {
		CompatChange c = mChanges.get(changeId);
		if (c != null) {
		overrideExists = true;
		c.removePackageOverride(packageName);
		}
		}
		return overrideExists;
		}

		}