Bump to SDL2 2.0.10 & extract .java from SDL2 tarball: merge conflicts fixed (#2113)

* Bump to SDL2 2.0.10 & make sure to extract .java from SDL2 tarball

* Made SDL2 patching do a dry run to check it will work

* Update pythonforandroid/bootstraps/common/build/build.py

Co-authored-by: Pol Canelles <canellestudi@gmail.com>

* Made bootstrap tests clear the Recipe cache in setup

* Made test_should_build not check non-existing storage_dir

Authored-by: Jonas Thiem <jonas@thiem.email>

Author: inclement

pythonforandroid/bootstrap.py

@@ -152,6 +152,23 @@ def get_bootstrap_dirs(self):
         ]
         return bootstrap_dirs
 
+    def _copy_in_final_files(self):
+        if self.name == "sdl2":
+            # Get the paths for copying SDL2's java source code:
+            sdl2_recipe = Recipe.get_recipe("sdl2", self.ctx)
+            sdl2_build_dir = sdl2_recipe.get_jni_dir()
+            src_dir = join(sdl2_build_dir, "SDL", "android-project",
+                           "app", "src", "main", "java",
+                           "org", "libsdl", "app")
+            target_dir = join(self.dist_dir, 'src', 'main', 'java', 'org',
+                              'libsdl', 'app')
+
+            # Do actual copying:
+            info('Copying in SDL2 .java files from: ' + str(src_dir))
+            if not os.path.exists(target_dir):
+                os.makedirs(target_dir)
+            copy_files(src_dir, target_dir, override=True)
+
     def prepare_build_dir(self):
         """Ensure that a build dir exists for the recipe. This same single
         dir will be used for building all different archs."""
@@ -168,7 +185,12 @@ def prepare_build_dir(self):
     def prepare_dist_dir(self):
         ensure_dir(self.dist_dir)
 
-    def run_distribute(self):
+    def assemble_distribution(self):
+        ''' Copies all the files into the distribution (this function is
+            overridden by the specific bootstrap classes to do this)
+            and add in the distribution info.
+        '''
+        self._copy_in_final_files()
         self.distribution.save_info(self.dist_dir)
 
     @classmethod

pythonforandroid/bootstraps/common/build/build.py

@@ -530,24 +530,28 @@ def make_package(args):
         for patch_name in os.listdir(join('src', 'patches')):
             patch_path = join('src', 'patches', patch_name)
             print("Applying patch: " + str(patch_path))
+
+            # -N: insist this is FORWARD patch, don't reverse apply
+            # -p1: strip first path component
+            # -t: batch mode, don't ask questions
+            patch_command = ["patch", "-N", "-p1", "-t", "-i", patch_path]
+
             try:
-                subprocess.check_output([
-                    # -N: insist this is FORWARd patch, don't reverse apply
-                    # -p1: strip first path component
-                    # -t: batch mode, don't ask questions
-                    "patch", "-N", "-p1", "-t", "-i", patch_path
-                ])
+                # Use a dry run to establish whether the patch is already applied.
+                # If we don't check this, the patch may be partially applied (which is bad!)
+                subprocess.check_output(patch_command + ["--dry-run"])
             except subprocess.CalledProcessError as e:
                 if e.returncode == 1:
-                    # Return code 1 means it didn't apply, this will
-                    # usually mean it is already applied.
-                    print("Warning: failed to apply patch (" +
-                          "exit code 1), " +
-                          "assuming it is already applied: " +
-                          str(patch_path)
-                         )
+                    # Return code 1 means not all hunks could be applied, this usually
+                    # means the patch is already applied.
+                    print("Warning: failed to apply patch (exit code 1), "
+                          "assuming it is already applied: ",
+                          str(patch_path))
                 else:
                     raise e
+            else:
+                # The dry run worked, so do the real thing
+                subprocess.check_output(patch_command)
 
 
 def parse_args_and_make_package(args=None):

pythonforandroid/bootstraps/empty/__init__.py

@@ -8,7 +8,7 @@ class EmptyBootstrap(Bootstrap):
 
     can_be_chosen_automatically = False
 
-    def run_distribute(self):
+    def assemble_distribution(self):
         print('empty bootstrap has no distribute')
         exit(1)
 

pythonforandroid/bootstraps/sdl2/__init__.py

@@ -12,7 +12,7 @@ class SDL2GradleBootstrap(Bootstrap):
         set(Bootstrap.recipe_depends).union({'sdl2'})
     )
 
-    def run_distribute(self):
+    def assemble_distribution(self):
         info_main("# Creating Android project ({})".format(self.name))
 
         arch = self.ctx.archs[0]
@@ -50,7 +50,7 @@ def run_distribute(self):
         if not self.ctx.build_as_debuggable:
             self.strip_libraries(arch)
         self.fry_eggs(site_packages_dir)
-        super().run_distribute()
+        super().assemble_distribution()
 
 
 bootstrap = SDL2GradleBootstrap()

pythonforandroid/bootstraps/sdl2/build/src/main/java/org/kivy/android/PythonActivity.java

@@ -193,7 +193,7 @@ protected void onPostExecute(String result) {
                         mActivity.getPackageName(), PackageManager.GET_META_DATA).metaData;
 
                 PowerManager pm = (PowerManager) mActivity.getSystemService(Context.POWER_SERVICE);
-                if ( mActivity.mMetaData.getInt("wakelock") == 1 ) {
+                if (mActivity.mMetaData.getInt("wakelock") == 1) {
                     mActivity.mWakeLock = pm.newWakeLock(PowerManager.SCREEN_BRIGHT_WAKE_LOCK, "Screen On");
                     mActivity.mWakeLock.acquire();
                 }
@@ -450,35 +450,32 @@ public void appConfirmedActive() {
     public void considerLoadingScreenRemoval() {
         if (loadingScreenRemovalTimer != null)
             return;
-        runOnUiThread(new Runnable() {
-            public void run() {
-                if (((PythonActivity)PythonActivity.mSingleton).mAppConfirmedActive &&
-                        loadingScreenRemovalTimer == null) {
-                    // Remove loading screen but with a delay.
-                    // (app can use p4a's android.loadingscreen module to
-                    // do it quicker if it wants to)
-                    // get a handler (call from main thread)
-                    // this will run when timer elapses
-                    TimerTask removalTask = new TimerTask() {
+        if (PythonActivity.mSingleton != null &&
+                mAppConfirmedActive &&
+                loadingScreenRemovalTimer == null) {
+            Log.v(TAG, "loading screen timer Runnable() launched.");
+            // Remove loading screen but with a delay.
+            // (app can use p4a's android.loadingscreen module to
+            // do it quicker if it wants to)
+            TimerTask removalTask = new TimerTask() {
+                @Override
+                public void run() {
+                    // post a runnable to the handler
+                    runOnUiThread(new Runnable() {
                         @Override
                         public void run() {
-                            // post a runnable to the handler
-                            runOnUiThread(new Runnable() {
-                                @Override
-                                public void run() {
-                                    PythonActivity activity =
-                                        ((PythonActivity)PythonActivity.mSingleton);
-                                    if (activity != null)
-                                        activity.removeLoadingScreen();
-                                }
-                            });
+                            Log.v(TAG, "loading screen timer Runnable() finished.");
+                            PythonActivity activity =
+                                ((PythonActivity)PythonActivity.mSingleton);
+                            if (activity != null)
+                                activity.removeLoadingScreen();
                         }
-                    };
-                    loadingScreenRemovalTimer = new Timer();
-                    loadingScreenRemovalTimer.schedule(removalTask, 5000);
+                    });
                 }
-            }
-        });
+            };
+            loadingScreenRemovalTimer = new Timer();
+            loadingScreenRemovalTimer.schedule(removalTask, 5000);
+        }
     }
 
     public void removeLoadingScreen() {
@@ -589,14 +586,30 @@ protected void onResume() {
         if (this.mWakeLock != null) {
             this.mWakeLock.acquire();
         }
-        Log.v(TAG, "onResume()");
+        Log.v(TAG, "onResume(), mSDLThread exists yet: " + (mSDLThread != null));
         try {
             super.onResume();
+            if (mSDLThread == null && !mIsResumedCalled) {
+                // Ok so SDL2's onStart() usually launches the native code.
+                // However, this may fail if native libs aren't loaded yet at that point
+                // (due ot our loading screen) so we may need to manually trigger this,
+                // otherwise code would only launch by leaving & re-entering the app:
+                Log.v(TAG, "Loading screen workaround: triggering native resume");
+                if (mSDLThread == null && mCurrentNativeState == NativeState.RESUMED) {
+                    // Force a state change so SDL2 doesn't just ignore the resume:
+                    mCurrentNativeState = NativeState.PAUSED;
+                }
+                resumeNativeThread();  // native resume to call native code
+            }
         } catch (UnsatisfiedLinkError e) {
             // Catch resume while still in loading screen failing to
             // call native function (since it's not yet loaded)
+            Log.v(TAG, "failed to call native onResume() because libs " +
+                       "aren't loaded yet. this is expected to happen");
         }
         considerLoadingScreenRemoval();
+        Log.v(TAG, "onResume() done in PythonActivity, " +
+                   "mSDLThread exists yet: " + (mSDLThread != null));
     }
 
     @Override
@@ -606,6 +619,7 @@ public void onWindowFocusChanged(boolean hasFocus) {
         } catch (UnsatisfiedLinkError e) {
             // Catch window focus while still in loading screen failing to
             // call native function (since it's not yet loaded)
+            return;  // no point in barging further
         }
         considerLoadingScreenRemoval();
     }