recipes: add new uvloop recipe

pythonforandroid/recipes/libpthread/__init__.py

@@ -0,0 +1,51 @@
+from os import makedirs, remove
+from os.path import exists, join
+import sh
+
+from pythonforandroid.recipe import Recipe
+from pythonforandroid.logger import shprint
+
+
+class LibPthread(Recipe):
+    '''
+    This is a dumb recipe. We may need this because some recipes inserted some
+    flags `-lpthread` without our control, case of:
+
+        - :class:`~pythonforandroid.recipes.uvloop.UvloopRecipe`
+
+    .. note:: the libpthread doesn't exist in android but it is integrated into
+        libc, so we create a symbolic link which we will remove when our build
+        finishes'''
+
+    def build_arch(self, arch):
+        libc_path = join(arch.ndk_lib_dir_versioned, 'libc')
+        # Create a temporary folder to add to link path with a fake libpthread.so:
+        fake_libpthread_temp_folder = join(
+            self.get_build_dir(arch.arch),
+            "p4a-libpthread-recipe-tempdir"
+        )
+        if not exists(fake_libpthread_temp_folder):
+            makedirs(fake_libpthread_temp_folder)
+
+        # Set symlinks, and make sure to update them on every build run:
+        if exists(join(fake_libpthread_temp_folder, "libpthread.so")):
+            remove(join(fake_libpthread_temp_folder, "libpthread.so"))
+        shprint(sh.ln, '-sf',
+                libc_path + '.so',
+                join(fake_libpthread_temp_folder, "libpthread.so"),
+                )
+        if exists(join(fake_libpthread_temp_folder, "libpthread.a")):
+            remove(join(fake_libpthread_temp_folder, "libpthread.a"))
+        shprint(sh.ln, '-sf',
+                libc_path + '.a',
+                join(fake_libpthread_temp_folder, "libpthread.a"),
+               )
+
+        # Add folder as -L link option for all recipes if not done yet:
+        if fake_libpthread_temp_folder not in arch.extra_global_link_paths:
+            arch.extra_global_link_paths.append(
+                fake_libpthread_temp_folder
+            )
+
+
+recipe = LibPthread()

pythonforandroid/recipes/uvloop/__init__.py

@@ -0,0 +1,16 @@
+from pythonforandroid.recipe import PyProjectRecipe
+
+
+class UvloopRecipe(PyProjectRecipe):
+    version = 'v0.19.0'
+    url = 'git+https://github.com/MagicStack/uvloop'
+    depends = ['librt', 'libpthread']
+
+    def get_recipe_env(self, arch, **kwargs):
+        env = super().get_recipe_env(arch, **kwargs)
+        env["LIBUV_CONFIGURE_HOST"] = arch.command_prefix
+        env["PLATFORM"] = "android"
+        return env
+
+
+recipe = UvloopRecipe()