Add should_build for deps.

Author: germn

pythonforandroid/recipes/ffmpeg/__init__.py

@@ -14,7 +14,9 @@ class FFMpegRecipe(Recipe):
     depends = ['openssl', 'ffpyplayer_codecs']  # TODO should be opts_depends
     patches = ['patches/fix-libshine-configure.patch']
 
-    # TODO add should_build(self, arch)
+    def should_build(self, arch):
+        build_dir = self.get_build_dir(arch.arch)
+        return not exists(join(build_dir, 'lib', 'libavcodec.so'))
 
     def prebuild_arch(self, arch):
         self.apply_patches(arch)

pythonforandroid/recipes/libshine/__init__.py

@@ -10,7 +10,9 @@ class LibShineRecipe(Recipe):
     url = 'https://github.com/toots/shine/archive/{version}.zip'
     md5sum = '24cf9488d06f7acf0a0fbb162cc587ab'
 
-    # TODO add should_build(self, arch)
+    def should_build(self, arch):
+        build_dir = self.get_build_dir(arch.arch)
+        return not exists(join(build_dir, 'lib', 'libshine.a'))
 
     def build_arch(self, arch):
         with current_directory(self.get_build_dir(arch.arch)):

pythonforandroid/recipes/libx264/__init__.py

@@ -10,7 +10,9 @@ class LibX264Recipe(Recipe):
     url = 'http://mirror.yandex.ru/mirrors/ftp.videolan.org/x264/snapshots/{version}.tar.bz2'
     md5sum = '6bcca94ae1d81ee14236ba9af42135d9'
 
-    # TODO add should_build(self, arch)
+    def should_build(self, arch):
+        build_dir = self.get_build_dir(arch.arch)
+        return not exists(join(build_dir, 'lib', 'libx264.a'))
 
     def build_arch(self, arch):
         with current_directory(self.get_build_dir(arch.arch)):