Merge pull request #2482 from AndyRusso/sdl2_rebuilding

Add should_build method to sdl2 recipe

pythonforandroid/recipes/sdl2/__init__.py

@@ -1,3 +1,5 @@
+from os.path import exists, join
+
 from pythonforandroid.recipe import BootstrapNDKRecipe
 from pythonforandroid.toolchain import current_directory, shprint
 import sh
@@ -18,6 +20,15 @@ def get_recipe_env(self, arch=None, with_flags_in_cc=True, with_python=True):
         env['APP_ALLOW_MISSING_DEPS'] = 'true'
         return env
 
+    def should_build(self, arch):
+        libdir = join(
+                self.get_build_dir(arch.arch),
+                '../..',
+                'libs', arch.arch
+            )
+        libs = ['libhidapi.so', 'libmain.so', 'libSDL2.so', 'libSDL2_image.so', 'libSDL2_mixer.so', 'libSDL2_ttf.so']
+        return not all(exists(join(libdir, x)) for x in libs)
+
     def build_arch(self, arch):
         env = self.get_recipe_env(arch)