from os.path import basename, dirname, exists, isdir, isfile, join, realpath, split

import glob

import hashlib

import json

from re import match

import sh

import shutil

import fnmatch

import zipfile

import urllib.request

from urllib.request import urlretrieve

from os import listdir, unlink, environ, curdir, walk

from sys import stdout

from multiprocessing import cpu_count

import time

try:

from urlparse import urlparse

except ImportError:

from urllib.parse import urlparse

import packaging.version

from pythonforandroid.logger import (

logger, info, warning, debug, shprint, info_main, error)

from pythonforandroid.util import (

current_directory, ensure_dir, BuildInterruptingException, rmdir, move,

touch, patch_wheel_setuptools_logging)

from pythonforandroid.util import load_source as import_recipe

url_opener = urllib.request.build_opener()

url_orig_headers = url_opener.addheaders

urllib.request.install_opener(url_opener)

class RecipeMeta(type):

def __new__(cls, name, bases, dct):

if name != 'Recipe':

if 'url' in dct:

dct['_url'] = dct.pop('url')

if 'version' in dct:

dct['_version'] = dct.pop('version')

return super().__new__(cls, name, bases, dct)

class Recipe(metaclass=RecipeMeta):

_url = None

'''The address from which the recipe may be downloaded. This is not

essential, it may be omitted if the source is available some other

way, such as via the :class:`IncludedFilesBehaviour` mixin.

If the url includes the version, you may (and probably should)

replace this with ``{version}``, which will automatically be

replaced by the :attr:`version` string during download.

.. note:: Methods marked (internal) are used internally and you

probably don't need to call them, but they are available

if you want.

'''

_download_headers = None

'''Add additional headers used when downloading the package, typically

for authorization purposes.

Specified as an array of tuples:

[("header1", "foo"), ("header2", "bar")]

When specifying as an environment variable (DOWNLOAD_HEADER_my-package-name), use a JSON formatted fragement:

[["header1","foo"],["header2", "bar"]]

For example, when downloading from a private

github repository, you can specify the following:

[('Authorization', 'token <your personal access token>'), ('Accept', 'application/vnd.github+json')]

'''

_version = None

'''A string giving the version of the software the recipe describes,

e.g. ``2.0.3`` or ``master``.'''

md5sum = None

'''The md5sum of the source from the :attr:`url`. Non-essential, but

you should try to include this, it is used to check that the download

finished correctly.

'''

sha512sum = None

'''The sha512sum of the source from the :attr:`url`. Non-essential, but

you should try to include this, it is used to check that the download

finished correctly.

'''

blake2bsum = None

'''The blake2bsum of the source from the :attr:`url`. Non-essential, but

you should try to include this, it is used to check that the download

finished correctly.

'''

depends = []

'''A list containing the names of any recipes that this recipe depends on.

'''

conflicts = []

'''A list containing the names of any recipes that are known to be

incompatible with this one.'''

opt_depends = []

'''A list of optional dependencies, that must be built before this

recipe if they are built at all, but whose presence is not essential.'''

patches = []

'''A list of patches to apply to the source. Values can be either a string

referring to the patch file relative to the recipe dir, or a tuple of the

string patch file and a callable, which will receive the kwargs `arch` and

`recipe`, which should return True if the patch should be applied.'''

python_depends = []

'''A list of pure-Python packages that this package requires. These

packages will NOT be available at build time, but will be added to the

list of pure-Python packages to install via pip. If you need these packages

at build time, you must create a recipe.'''

archs = ['armeabi'] # Not currently implemented properly

built_libraries = {}

"""Each recipe that builds a system library (e.g.:libffi, openssl, etc...)

should contain a dict holding the relevant information of the library. The

keys should be the generated libraries and the values the relative path of

the library inside his build folder. This dict will be used to perform

different operations:

- copy the library into the right location, depending on if it's shared

or static)

- check if we have to rebuild the library

Here an example of how it would look like for `libffi` recipe:

- `built_libraries = {'libffi.so': '.libs'}`

.. note:: in case that the built library resides in recipe's build

directory, you can set the following values for the relative

path: `'.', None or ''`

"""

need_stl_shared = False

'''Some libraries or python packages may need the c++_shared in APK.

We can automatically do this for any recipe if we set this property to

`True`'''

stl_lib_name = 'c++_shared'

'''

The default STL shared lib to use: `c++_shared`.

.. note:: Android NDK version > 17 only supports 'c++_shared', because

starting from NDK r18 the `gnustl_shared` lib has been deprecated.

'''

min_ndk_api_support = 20

'''

Minimum ndk api recipe will support.

'''

def get_stl_library(self, arch):

return join(

arch.ndk_lib_dir,

'lib{name}.so'.format(name=self.stl_lib_name),

)

def install_stl_lib(self, arch):

if not self.ctx.has_lib(

arch.arch, 'lib{name}.so'.format(name=self.stl_lib_name)

):

self.install_libs(arch, self.get_stl_library(arch))

@property

def version(self):

key = 'VERSION_' + self.name

return environ.get(key, self._version)

@property

def url(self):

key = 'URL_' + self.name

return environ.get(key, self._url)

@property

def versioned_url(self):

'''A property returning the url of the recipe with ``{version}``

replaced by the :attr:`url`. If accessing the url, you should use this

property, *not* access the url directly.'''

if self.url is None:

return None

return self.url.format(version=self.version)

@property

def download_headers(self):

key = "DOWNLOAD_HEADERS_" + self.name

env_headers = environ.get(key)

if env_headers:

try:

return [tuple(h) for h in json.loads(env_headers)]

except Exception as ex:

raise ValueError(f'Invalid Download headers for {key} - must be JSON formatted as [["header1","foo"],["header2","bar"]]: {ex}')

return environ.get(key, self._download_headers)

def download_file(self, url, target, cwd=None):

"""

(internal) Download an ``url`` to a ``target``.

"""

if not url:

return

info('Downloading {} from {}'.format(self.name, url))

if cwd:

target = join(cwd, target)

parsed_url = urlparse(url)

if parsed_url.scheme in ('http', 'https'):

def report_hook(index, blksize, size):

if size <= 0:

progression = '{0} bytes'.format(index * blksize)

else:

progression = '{0:.2f}%'.format(

index * blksize * 100. / float(size))

if "CI" not in environ:

stdout.write('- Download {}\r'.format(progression))

stdout.flush()

if exists(target):

unlink(target)

# Download item with multiple attempts (for bad connections):

attempts = 0

seconds = 1

while True:

try:

# jqueryui.com returns a 403 w/ the default user agent

# Mozilla/5.0 does not handle redirection for liblzma

url_opener.addheaders = [('User-agent', 'Wget/1.0')]

if self.download_headers:

url_opener.addheaders += self.download_headers

urlretrieve(url, target, report_hook)

except OSError as e:

attempts += 1

if attempts >= 5:

raise

stdout.write('Download failed: {}; retrying in {} second(s)...'.format(e, seconds))

time.sleep(seconds)

seconds *= 2

continue

finally:

url_opener.addheaders = url_orig_headers

break

return target

elif parsed_url.scheme in ('git', 'git+file', 'git+ssh', 'git+http', 'git+https'):

if not isdir(target):

if url.startswith('git+'):

url = url[4:]

# if 'version' is specified, do a shallow clone

if self.version:

ensure_dir(target)

with current_directory(target):

shprint(sh.git, 'init')

shprint(sh.git, 'remote', 'add', 'origin', url)

else:

shprint(sh.git, 'clone', '--recursive', url, target)

with current_directory(target):

if self.version:

shprint(sh.git, 'fetch', '--tags', '--depth', '1')

shprint(sh.git, 'checkout', self.version)

branch = sh.git('branch', '--show-current')

if branch:

shprint(sh.git, 'pull')

shprint(sh.git, 'pull', '--recurse-submodules')

shprint(sh.git, 'submodule', 'update', '--recursive', '--init', '--depth', '1')

return target

def apply_patch(self, filename, arch, build_dir=None):

"""

Apply a patch from the current recipe directory into the current

build directory.

.. versionchanged:: 0.6.0

Add ability to apply patch from any dir via kwarg `build_dir`'''

"""

info("Applying patch {}".format(filename))

build_dir = build_dir if build_dir else self.get_build_dir(arch)

filename = join(self.get_recipe_dir(), filename)

shprint(sh.patch, "-t", "-d", build_dir, "-p1",

"-i", filename, _tail=10)

def copy_file(self, filename, dest):

info("Copy {} to {}".format(filename, dest))

filename = join(self.get_recipe_dir(), filename)

dest = join(self.build_dir, dest)

shutil.copy(filename, dest)

def append_file(self, filename, dest):

info("Append {} to {}".format(filename, dest))

filename = join(self.get_recipe_dir(), filename)

dest = join(self.build_dir, dest)

with open(filename, "rb") as fd:

data = fd.read()

with open(dest, "ab") as fd:

fd.write(data)

@property

def name(self):

'''The name of the recipe, the same as the folder containing it.'''

modname = self.__class__.__module__

return modname.split(".", 2)[-1]

@property

def filtered_archs(self):

'''Return archs of self.ctx that are valid build archs

for the Recipe.'''

result = []

for arch in self.ctx.archs:

if not self.archs or (arch.arch in self.archs):

result.append(arch)

return result

def check_recipe_choices(self):

'''Checks what recipes are being built to see which of the alternative

and optional dependencies are being used,

and returns a list of these.'''

recipes = []

built_recipes = self.ctx.recipe_build_order

for recipe in self.depends:

if isinstance(recipe, (tuple, list)):

for alternative in recipe:

if alternative in built_recipes:

recipes.append(alternative)

break

for recipe in self.opt_depends:

if recipe in built_recipes:

recipes.append(recipe)

return sorted(recipes)

def get_opt_depends_in_list(self, recipes):

'''Given a list of recipe names, returns those that are also in

self.opt_depends.

'''

return [recipe for recipe in recipes if recipe in self.opt_depends]

def get_build_container_dir(self, arch):

'''Given the arch name, returns the directory where it will be

built.

This returns a different directory depending on what

alternative or optional dependencies are being built.

'''

dir_name = self.get_dir_name()

return join(self.ctx.build_dir, 'other_builds',

dir_name, '{}__ndk_target_{}'.format(arch, self.ctx.ndk_api))

def get_dir_name(self):

choices = self.check_recipe_choices()

dir_name = '-'.join([self.name] + choices)

return dir_name

def get_build_dir(self, arch):

'''Given the arch name, returns the directory where the

downloaded/copied package will be built.'''

return join(self.get_build_container_dir(arch), self.name)

def get_recipe_dir(self):

"""

Returns the local recipe directory or defaults to the core recipe

directory.

"""

if self.ctx.local_recipes is not None:

local_recipe_dir = join(self.ctx.local_recipes, self.name)

if exists(local_recipe_dir):

return local_recipe_dir

return join(self.ctx.root_dir, 'recipes', self.name)

# Public Recipe API to be subclassed if needed

def download_if_necessary(self):

if self.ctx.ndk_api < self.min_ndk_api_support:

error(f"In order to build '{self.name}', you must set minimum ndk api (minapi) to `{self.min_ndk_api_support}`.\n")

exit(1)

info_main('Downloading {}'.format(self.name))

user_dir = environ.get('P4A_{}_DIR'.format(self.name.lower()))

if user_dir is not None:

info('P4A_{}_DIR is set, skipping download for {}'.format(

self.name, self.name))

return

self.download()

def download(self):

if self.url is None:

info('Skipping {} download as no URL is set'.format(self.name))

return

url = self.versioned_url

expected_digests = {}

for alg in set(hashlib.algorithms_guaranteed) | set(('md5', 'sha512', 'blake2b')):

expected_digest = getattr(self, alg + 'sum') if hasattr(self, alg + 'sum') else None

ma = match(u'^(.+)#' + alg + u'=([0-9a-f]{32,})$', url)

if ma: # fragmented URL?

if expected_digest:

raise ValueError(

('Received {}sum from both the {} recipe '

'and its url').format(alg, self.name))

url = ma.group(1)

expected_digest = ma.group(2)

if expected_digest:

expected_digests[alg] = expected_digest

ensure_dir(join(self.ctx.packages_path, self.name))

with current_directory(join(self.ctx.packages_path, self.name)):

filename = shprint(sh.basename, url).stdout[:-1].decode('utf-8')

do_download = True

marker_filename = '.mark-{}'.format(filename)

if exists(filename) and isfile(filename):

if not exists(marker_filename):

shprint(sh.rm, filename)

else:

for alg, expected_digest in expected_digests.items():

current_digest = algsum(alg, filename)

if current_digest != expected_digest:

debug('* Generated {}sum: {}'.format(alg,

current_digest))

debug('* Expected {}sum: {}'.format(alg,

expected_digest))

raise ValueError(

('Generated {0}sum does not match expected {0}sum '

'for {1} recipe').format(alg, self.name))

do_download = False

# If we got this far, we will download

if do_download:

debug('Downloading {} from {}'.format(self.name, url))

shprint(sh.rm, '-f', marker_filename)

self.download_file(self.versioned_url, filename)

touch(marker_filename)

if exists(filename) and isfile(filename):

for alg, expected_digest in expected_digests.items():

current_digest = algsum(alg, filename)

if current_digest != expected_digest:

debug('* Generated {}sum: {}'.format(alg,

current_digest))

debug('* Expected {}sum: {}'.format(alg,

expected_digest))

raise ValueError(

('Generated {0}sum does not match expected {0}sum '

'for {1} recipe').format(alg, self.name))

else:

info('{} download already cached, skipping'.format(self.name))

def unpack(self, arch):

info_main('Unpacking {} for {}'.format(self.name, arch))

build_dir = self.get_build_container_dir(arch)

user_dir = environ.get('P4A_{}_DIR'.format(self.name.lower()))

if user_dir is not None:

info('P4A_{}_DIR exists, symlinking instead'.format(

self.name.lower()))

if exists(self.get_build_dir(arch)):

return

rmdir(build_dir)

ensure_dir(build_dir)

shprint(sh.cp, '-a', user_dir, self.get_build_dir(arch))

return

if self.url is None:

info('Skipping {} unpack as no URL is set'.format(self.name))

return

filename = shprint(

sh.basename, self.versioned_url).stdout[:-1].decode('utf-8')

ma = match(u'^(.+)#[a-z0-9_]{3,}=([0-9a-f]{32,})$', filename)

if ma: # fragmented URL?

filename = ma.group(1)

with current_directory(build_dir):

directory_name = self.get_build_dir(arch)

if not exists(directory_name) or not isdir(directory_name):

extraction_filename = join(

self.ctx.packages_path, self.name, filename)

if isfile(extraction_filename):

if extraction_filename.endswith(('.zip', '.whl')):

try:

sh.unzip(extraction_filename)

except (sh.ErrorReturnCode_1, sh.ErrorReturnCode_2):

# return code 1 means unzipping had

# warnings but did complete,

# apparently happens sometimes with

# github zips

pass

fileh = zipfile.ZipFile(extraction_filename, 'r')

root_directory = fileh.filelist[0].filename.split('/')[0]

if root_directory != basename(directory_name):

move(root_directory, directory_name)

elif extraction_filename.endswith(

('.tar.gz', '.tgz', '.tar.bz2', '.tbz2', '.tar.xz', '.txz')):

sh.tar('xf', extraction_filename)

root_directory = sh.tar('tf', extraction_filename).split('\n')[0].split('/')[0]

if root_directory != basename(directory_name):

move(root_directory, directory_name)

else:

raise Exception(

'Could not extract {} download, it must be .zip, '

'.tar.gz or .tar.bz2 or .tar.xz'.format(extraction_filename))

elif isdir(extraction_filename):

ensure_dir(directory_name)

for entry in listdir(extraction_filename):

# Previously we filtered out the .git folder, but during the build process for some recipes

# (e.g. when version is parsed by `setuptools_scm`) that may be needed.

shprint(sh.cp, '-R',

join(extraction_filename, entry),

directory_name)

else:

raise Exception(

'Given path is neither a file nor a directory: {}'

.format(extraction_filename))

else:

info('{} is already unpacked, skipping'.format(self.name))

def get_recipe_env(self, arch=None, with_flags_in_cc=True):

"""Return the env specialized for the recipe

"""

if arch is None:

arch = self.filtered_archs[0]

env = arch.get_env(with_flags_in_cc=with_flags_in_cc)

for proxy_key in ['HTTP_PROXY', 'http_proxy', 'HTTPS_PROXY', 'https_proxy']:

if proxy_key in environ:

env[proxy_key] = environ[proxy_key]

return env

def prebuild_arch(self, arch):

'''Run any pre-build tasks for the Recipe. By default, this checks if

any prebuild_archname methods exist for the archname of the current

architecture, and runs them if so.'''

prebuild = "prebuild_{}".format(arch.arch.replace('-', '_'))

if hasattr(self, prebuild):

getattr(self, prebuild)()

else:

info('{} has no {}, skipping'.format(self.name, prebuild))

def is_patched(self, arch):

build_dir = self.get_build_dir(arch.arch)

return exists(join(build_dir, '.patched'))

def apply_patches(self, arch, build_dir=None):

'''Apply any patches for the Recipe.

.. versionchanged:: 0.6.0

Add ability to apply patches from any dir via kwarg `build_dir`'''

if self.patches:

info_main('Applying patches for {}[{}]'

.format(self.name, arch.arch))

if self.is_patched(arch):

info_main('{} already patched, skipping'.format(self.name))

return

build_dir = build_dir if build_dir else self.get_build_dir(arch.arch)

for patch in self.patches:

if isinstance(patch, (tuple, list)):

patch, patch_check = patch

if not patch_check(arch=arch, recipe=self):

continue

self.apply_patch(

patch.format(version=self.version, arch=arch.arch),

arch.arch, build_dir=build_dir)

touch(join(build_dir, '.patched'))

def should_build(self, arch):

'''Should perform any necessary test and return True only if it needs

building again. Per default we implement a library test, in case that

we detect so.

'''

if self.built_libraries:

return not all(

exists(lib) for lib in self.get_libraries(arch.arch)

)

return True

def build_arch(self, arch):

'''Run any build tasks for the Recipe. By default, this checks if

any build_archname methods exist for the archname of the current

architecture, and runs them if so.'''

build = "build_{}".format(arch.arch)

if hasattr(self, build):

getattr(self, build)()

def install_libraries(self, arch):

'''This method is always called after `build_arch`. In case that we

detect a library recipe, defined by the class attribute

`built_libraries`, we will copy all defined libraries into the

right location.

'''

if not self.built_libraries:

return

shared_libs = [

lib for lib in self.get_libraries(arch) if lib.endswith(".so")

]

self.install_libs(arch, *shared_libs)

def postbuild_arch(self, arch):

'''Run any post-build tasks for the Recipe. By default, this checks if

any postbuild_archname methods exist for the archname of the

current architecture, and runs them if so.

'''

postbuild = "postbuild_{}".format(arch.arch)

if hasattr(self, postbuild):

getattr(self, postbuild)()

if self.need_stl_shared:

self.install_stl_lib(arch)

def prepare_build_dir(self, arch):

'''Copies the recipe data into a build dir for the given arch. By

default, this unpacks a downloaded recipe. You should override

it (or use a Recipe subclass with different behaviour) if you

want to do something else.

'''

self.unpack(arch)

def clean_build(self, arch=None):

'''Deletes all the build information of the recipe.

If arch is not None, only this arch dir is deleted. Otherwise

(the default) all builds for all archs are deleted.

By default, this just deletes the main build dir. If the

recipe has e.g. object files biglinked, or .so files stored

elsewhere, you should override this method.

This method is intended for testing purposes, it may have

strange results. Rebuild everything if this seems to happen.

'''

if arch is None:

base_dir = join(self.ctx.build_dir, 'other_builds', self.name)

else:

base_dir = self.get_build_container_dir(arch)

dirs = glob.glob(base_dir + '-*')

if exists(base_dir):

dirs.append(base_dir)

if not dirs:

warning('Attempted to clean build for {} but found no existing '

'build dirs'.format(self.name))

for directory in dirs:

rmdir(directory)

# Delete any Python distributions to ensure the recipe build

# doesn't persist in site-packages

rmdir(self.ctx.python_installs_dir)

def install_libs(self, arch, *libs):

libs_dir = self.ctx.get_libs_dir(arch.arch)

if not libs:

warning('install_libs called with no libraries to install!')

return

args = libs + (libs_dir,)

shprint(sh.cp, *args)

def has_libs(self, arch, *libs):

return all(map(lambda lib: self.ctx.has_lib(arch.arch, lib), libs))

def get_libraries(self, arch_name, in_context=False):

"""Return the full path of the library depending on the architecture.

Per default, the build library path it will be returned, unless

`get_libraries` has been called with kwarg `in_context` set to

True.

.. note:: this method should be used for library recipes only

"""

recipe_libs = set()

if not self.built_libraries:

return recipe_libs

for lib, rel_path in self.built_libraries.items():

if not in_context:

abs_path = join(self.get_build_dir(arch_name), rel_path, lib)

if rel_path in {".", "", None}:

abs_path = join(self.get_build_dir(arch_name), lib)

else:

abs_path = join(self.ctx.get_libs_dir(arch_name), lib)

recipe_libs.add(abs_path)

return recipe_libs

@classmethod

def recipe_dirs(cls, ctx):

recipe_dirs = []

if ctx.local_recipes is not None:

recipe_dirs.append(realpath(ctx.local_recipes))

if ctx.storage_dir:

recipe_dirs.append(join(ctx.storage_dir, 'recipes'))

recipe_dirs.append(join(ctx.root_dir, "recipes"))

return recipe_dirs

@classmethod

def list_recipes(cls, ctx):

forbidden_dirs = ('__pycache__', )

for recipes_dir in cls.recipe_dirs(ctx):

if recipes_dir and exists(recipes_dir):

for name in listdir(recipes_dir):

if name in forbidden_dirs:

continue

fn = join(recipes_dir, name)

if isdir(fn):

yield name

@classmethod

def get_recipe(cls, name, ctx):

'''Returns the Recipe with the given name, if it exists.'''

name = name.lower()

if not hasattr(cls, "recipes"):

cls.recipes = {}

if name in cls.recipes:

return cls.recipes[name]

recipe_file = None

for recipes_dir in cls.recipe_dirs(ctx):

if not exists(recipes_dir):

continue

# Find matching folder (may differ in case):

for subfolder in listdir(recipes_dir):

if subfolder.lower() == name:

recipe_file = join(recipes_dir, subfolder, '__init__.py')

if exists(recipe_file):

name = subfolder # adapt to actual spelling

break

recipe_file = None

if recipe_file is not None:

break

else:

raise ValueError('Recipe does not exist: {}'.format(name))

mod = import_recipe('pythonforandroid.recipes.{}'.format(name), recipe_file)

if len(logger.handlers) > 1:

logger.removeHandler(logger.handlers[1])

recipe = mod.recipe

recipe.ctx = ctx

cls.recipes[name.lower()] = recipe

return recipe

class IncludedFilesBehaviour(object):

'''Recipe mixin class that will automatically unpack files included in

the recipe directory.'''

src_filename = None

def prepare_build_dir(self, arch):

if self.src_filename is None:

raise BuildInterruptingException(

'IncludedFilesBehaviour failed: no src_filename specified')

rmdir(self.get_build_dir(arch))

shprint(sh.cp, '-a', join(self.get_recipe_dir(), self.src_filename),

self.get_build_dir(arch))

class BootstrapNDKRecipe(Recipe):

'''A recipe class for recipes built in an Android project jni dir with

an Android.mk. These are not cached separately, but built in the

bootstrap's own building directory.

To build an NDK project which is not part of the bootstrap, see

:class:`~pythonforandroid.recipe.NDKRecipe`.

To link with python, call the method :meth:`get_recipe_env`

with the kwarg *with_python=True*.

'''

dir_name = None # The name of the recipe build folder in the jni dir

def get_build_container_dir(self, arch):

return self.get_jni_dir()

def get_build_dir(self, arch):

if self.dir_name is None:

raise ValueError('{} recipe doesn\'t define a dir_name, but '

'this is necessary'.format(self.name))

return join(self.get_build_container_dir(arch), self.dir_name)

def get_jni_dir(self):

return join(self.ctx.bootstrap.build_dir, 'jni')

def get_recipe_env(self, arch=None, with_flags_in_cc=True, with_python=False):

env = super().get_recipe_env(arch, with_flags_in_cc)

if not with_python:

return env

env['PYTHON_INCLUDE_ROOT'] = self.ctx.python_recipe.include_root(arch.arch)

env['PYTHON_LINK_ROOT'] = self.ctx.python_recipe.link_root(arch.arch)

env['EXTRA_LDLIBS'] = ' -lpython{}'.format(

self.ctx.python_recipe.link_version)

return env

class NDKRecipe(Recipe):

'''A recipe class for any NDK project not included in the bootstrap.'''

generated_libraries = []

def should_build(self, arch):

lib_dir = self.get_lib_dir(arch)

for lib in self.generated_libraries:

if not exists(join(lib_dir, lib)):

return True

return False

def get_lib_dir(self, arch):

return join(self.get_build_dir(arch.arch), 'obj', 'local', arch.arch)

def get_jni_dir(self, arch):

return join(self.get_build_dir(arch.arch), 'jni')

def build_arch(self, arch, *extra_args):

super().build_arch(arch)

env = self.get_recipe_env(arch)

with current_directory(self.get_build_dir(arch.arch)):

shprint(

sh.Command(join(self.ctx.ndk_dir, "ndk-build")),

'V=1',

"-j",

str(cpu_count()),

'NDK_DEBUG=' + ("1" if self.ctx.build_as_debuggable else "0"),

'APP_PLATFORM=android-' + str(self.ctx.ndk_api),

'APP_ABI=' + arch.arch,

*extra_args, _env=env

)

class PythonRecipe(Recipe):

site_packages_name = None

'''The name of the module's folder when installed in the Python

site-packages (e.g. for pyjnius it is 'jnius')'''

call_hostpython_via_targetpython = True

'''If True, tries to install the module using the hostpython binary

copied to the target (normally arm) python build dir. However, this

will fail if the module tries to import e.g. _io.so. Set this to False

to call hostpython from its own build dir, installing the module in

the right place via arguments to setup.py. However, this may not set

the environment correctly and so False is not the default.'''

install_in_hostpython = False

'''If True, additionally installs the module in the hostpython build

dir. This will make it available to other recipes if

call_hostpython_via_targetpython is False.

'''

install_in_targetpython = True

'''If True, installs the module in the targetpython installation dir.

This is almost always what you want to do.'''

setup_extra_args = []

'''List of extra arguments to pass to setup.py'''

depends = ['python3']

'''

.. note:: it's important to keep this depends as a class attribute outside

`__init__` because sometimes we only initialize the class, so the

`__init__` call won't be called and the deps would be missing

(which breaks the dependency graph computation)

.. warning:: don't forget to call `super().__init__()` in any recipe's

`__init__`, or otherwise it may not be ensured that it depends

on python2 or python3 which can break the dependency graph

'''

hostpython_prerequisites = ['setuptools']

'''List of hostpython packages required to build a recipe'''

_host_recipe = None

def __init__(self, *args, **kwargs):

super().__init__(*args, **kwargs)

if 'python3' not in self.depends:

# We ensure here that the recipe depends on python even it overrode

# `depends`. We only do this if it doesn't already depend on any

# python, since some recipes intentionally don't depend on/work

# with all python variants

depends = self.depends

depends.append('python3')

depends = list(set(depends))

self.depends = depends

def prebuild_arch(self, arch):

self._host_recipe = Recipe.get_recipe("hostpython3", self.ctx)

return super().prebuild_arch(arch)

def clean_build(self, arch=None):

super().clean_build(arch=arch)

name = self.folder_name

python_install_dirs = glob.glob(join(self.ctx.python_installs_dir, '*'))

for python_install in python_install_dirs:

site_packages_dir = glob.glob(join(python_install, 'lib', 'python*',

'site-packages'))

if site_packages_dir:

build_dir = join(site_packages_dir[0], name)

if exists(build_dir):

info('Deleted {}'.format(build_dir))

rmdir(build_dir)

@property

def real_hostpython_location(self):

host_name = 'host{}'.format(self.ctx.python_recipe.name)

if host_name == 'hostpython3':

return self._host_recipe.python_exe

else:

return 'python{}'.format(self.ctx.python_recipe.version)

@property

def hostpython_location(self):

if not self.call_hostpython_via_targetpython:

return self.real_hostpython_location

return self.ctx.hostpython

@property

def folder_name(self):

'''The name of the build folders containing this recipe.'''

name = self.site_packages_name

if name is None:

name = self.name

return name

def patch_shebang(self, _file, original_bin):

_file_des = open(_file, "r")

try:

data = _file_des.readlines()

except UnicodeDecodeError:

return

if "#!" in (line := data[0]):

if line.split("#!")[-1].strip() == original_bin:

return

info(f"Fixing shebang for '{_file}'")

data.pop(0)

data.insert(0, "#!" + original_bin + "\n")

_file_des.close()

_file_des = open(_file, "w")

_file_des.write("".join(data))

_file_des.close()

def patch_shebangs(self, path, original_bin):

if not isdir(path):

warning(f"Shebang patch skipped: '{path}' does not exist.")

return

# set correct shebang

for file in listdir(path):

_file = join(path, file)

self.patch_shebang(_file, original_bin)

def get_recipe_env(self, arch=None, with_flags_in_cc=True):

if self._host_recipe is None:

self._host_recipe = Recipe.get_recipe("hostpython3", self.ctx)

env = super().get_recipe_env(arch, with_flags_in_cc)

# Set the LANG, this isn't usually important but is a better default

# as it occasionally matters how Python e.g. reads files

env['LANG'] = "en_GB.UTF-8"

# Binaries made by packages installed by pip

self.patch_shebangs(self._host_recipe.local_bin, self._host_recipe.python_exe)

env["PATH"] = self._host_recipe.local_bin + ":" + self._host_recipe.site_bin + ":" + env["PATH"]

host_env = self.get_hostrecipe_env(arch)

env['PYTHONPATH'] = host_env["PYTHONPATH"]

if not self.call_hostpython_via_targetpython:

env['CFLAGS'] += ' -I{}'.format(

self.ctx.python_recipe.include_root(arch.arch)

)

env['LDFLAGS'] += ' -L{} -lpython{}'.format(

self.ctx.python_recipe.link_root(arch.arch),

self.ctx.python_recipe.link_version,

)

return env

def should_build(self, arch):

name = self.folder_name

if self.ctx.has_package(name, arch):