Add --non-staged flag

The child change will change the behaviour of --force-non-staged flag to
perform a rebootless APEX update even for APEXes that don't support
rebootless updates. This behaviour will be used to speed up development
cycle for teams that have their code packaged in an APEX.

However, some developers (and some tests) assume that adb install
--force-non-staged will fail for APEXes that don't support rebootless
updates. In order to preserve such behaviour, this change introduces a
new --non-staged flag.

Bug: 290750901
Test: adb install --non-staged apex-supporting-rebootless-update
Test: verify install was successful
Test: adb install --non-staged com.android.virt.apex
Test: verify install failed with "does not support non-staged update"
Merged-In: I27ac000207e1b6ec39890bd382b3751fbb62e265
Change-Id: I27ac000207e1b6ec39890bd382b3751fbb62e265
(cherry picked from commit d2d672e3)

services/core/java/com/android/server/pm/PackageManagerShellCommand.java

@@ -86,7 +86,6 @@ import android.os.ServiceManager;
 import android.os.ServiceSpecificException;
 import android.os.ShellCommand;
 import android.os.SystemClock;
-import android.os.SystemProperties;
 import android.os.Trace;
 import android.os.UserHandle;
 import android.os.UserManager;
@@ -3053,6 +3052,13 @@ class PackageManagerShellCommand extends ShellCommand {
         // Set package source to other by default
         sessionParams.setPackageSource(PackageInstaller.PACKAGE_SOURCE_OTHER);
 
+        // Encodes one of the states:
+        //  1. Install request explicitly specified --staged, then value will be true.
+        //  2. Install request explicitly specified --non-staged, then value will be false.
+        //  3. Install request did not specify either --staged or --non-staged, then for APEX
+        //      installs the value will be true, and for apk installs it will be false.
+        Boolean staged = null;
+
         String opt;
         boolean replaceExisting = true;
         boolean forceNonStaged = false;
@@ -3151,7 +3157,6 @@ class PackageManagerShellCommand extends ShellCommand {
                     break;
                 case "--apex":
                     sessionParams.setInstallAsApex();
-                    sessionParams.setStaged();
                     break;
                 case "--force-non-staged":
                     forceNonStaged = true;
@@ -3160,7 +3165,10 @@ class PackageManagerShellCommand extends ShellCommand {
                     sessionParams.setMultiPackage();
                     break;
                 case "--staged":
-                    sessionParams.setStaged();
+                    staged = true;
+                    break;
+                case "--non-staged":
+                    staged = false;
                     break;
                 case "--force-queryable":
                     sessionParams.setForceQueryable();
@@ -3192,11 +3200,16 @@ class PackageManagerShellCommand extends ShellCommand {
                     throw new IllegalArgumentException("Unknown option " + opt);
             }
         }
+        if (staged == null) {
+            staged = (sessionParams.installFlags & PackageManager.INSTALL_APEX) != 0;
+        }
         if (replaceExisting) {
             sessionParams.installFlags |= PackageManager.INSTALL_REPLACE_EXISTING;
         }
         if (forceNonStaged) {
             sessionParams.isStaged = false;
+        } else if (staged) {
+            sessionParams.setStaged();
         }
         return params;
     }
@@ -3978,7 +3991,8 @@ class PackageManagerShellCommand extends ShellCommand {
         pw.println("       [--preload] [--instant] [--full] [--dont-kill]");
         pw.println("       [--enable-rollback]");
         pw.println("       [--force-uuid internal|UUID] [--pkg PACKAGE] [-S BYTES]");
-        pw.println("       [--apex] [--force-non-staged] [--staged-ready-timeout TIMEOUT]");
+        pw.println("       [--apex] [--non-staged] [--force-non-staged]");
+        pw.println("       [--staged-ready-timeout TIMEOUT]");
         pw.println("       [PATH [SPLIT...]|-]");
         pw.println("    Install an application.  Must provide the apk data to install, either as");
         pw.println("    file path(s) or '-' to read from stdin.  Options are:");
@@ -4006,6 +4020,9 @@ class PackageManagerShellCommand extends ShellCommand {
         pw.println("          3=device setup, 4=user request");
         pw.println("      --force-uuid: force install on to disk volume with given UUID");
         pw.println("      --apex: install an .apex file, not an .apk");
+        pw.println("      --non-staged: explicitly set this installation to be non-staged.");
+        pw.println("          This flag is only useful for APEX installs that are implicitly");
+        pw.println("          assumed to be staged.");
         pw.println("      --force-non-staged: force the installation to run under a non-staged");
         pw.println("          session, which may complete without requiring a reboot");
         pw.println("      --staged-ready-timeout: By default, staged sessions wait "