Update LockSettingsCmd's showUsage method to defer to calling

"locksettings help".

This removes the duplication and also fixes the
current behavior showing the incorrect documentation for "locksettings
verify" which does *not* log in the user.

Test: adb shell locksettings
Test: adb shell locksettings clear --old 0000 (to verify other commands
still work)

Change-Id: I429288a9e4280d41213e1c0fd8234d3666888abc

1 files changed, 1 insertions, 31 deletions

diff --git a/cmds/locksettings/src/com/android/commands/locksettings/LockSettingsCmd.java b/cmds/locksettings/src/com/android/commands/locksettings/LockSettingsCmd.java
index 6a4a4beaa763..7d9260a77158 100644
--- a/cmds/locksettings/src/com/android/commands/locksettings/LockSettingsCmd.java
+++ b/cmds/locksettings/src/com/android/commands/locksettings/LockSettingsCmd.java
@@ -28,43 +28,13 @@ import java.io.PrintStream;
 
 public final class LockSettingsCmd extends BaseCommand {
 
-    private static final String USAGE =
-            "usage: locksettings set-pattern [--old OLD_CREDENTIAL] NEW_PATTERN\n" +
-            "       locksettings set-pin [--old OLD_CREDENTIAL] NEW_PIN\n" +
-            "       locksettings set-password [--old OLD_CREDENTIAL] NEW_PASSWORD\n" +
-            "       locksettings clear [--old OLD_CREDENTIAL]\n" +
-            "       locksettings verify [--old OLD_CREDENTIAL]\n" +
-            "       locksettings set-disabled DISABLED\n" +
-            "       locksettings get-disabled\n" +
-            "\n" +
-            "flags: \n" +
-            "       --user USER_ID: specify the user, default value is current user\n" +
-            "\n" +
-            "locksettings set-pattern: sets a pattern\n" +
-            "    A pattern is specified by a non-separated list of numbers that index the cell\n" +
-            "    on the pattern in a 1-based manner in left to right and top to bottom order,\n" +
-            "    i.e. the top-left cell is indexed with 1, whereas the bottom-right cell\n" +
-            "    is indexed with 9. Example: 1234\n" +
-            "\n" +
-            "locksettings set-pin: sets a PIN\n" +
-            "\n" +
-            "locksettings set-password: sets a password\n" +
-            "\n" +
-            "locksettings clear: clears the unlock credential\n" +
-            "\n" +
-            "locksettings verify: verifies the credential and unlocks the user\n" +
-            "\n" +
-            "locksettings set-disabled: sets whether the lock screen should be disabled\n" +
-            "\n" +
-            "locksettings get-disabled: retrieves whether the lock screen is disabled\n";
-
     public static void main(String[] args) {
         (new LockSettingsCmd()).run(args);
     }
 
     @Override
     public void onShowUsage(PrintStream out) {
-        out.println(USAGE);
+        main(new String[] { "help" });
     }
 
     @Override