Add support for prebuilt wheels

[T-Dynamos]

New options

--extra-index-url

Additional package indexes to search for prebuilt wheels.
Can be used multiple times.

Example:

--extra-index-url https://chaquo.com/pypi-13.1/ \
--extra-index-url https://anshdadwal.is-a.dev/p4a-wheels/p4a/

--skip-prebuilt

Do not use prebuilt wheels; always build from source.

--use-prebuilt-version-for

For these packages, ignore recipe-pinned versions and use the latest prebuilt from the extra index if available.
Only applies to packages with a recipe.
Can be used multiple times.

Example:

--use-prebuilt-version-for numpy

--save-wheel-dir

Directory where wheels built by PyProjectRecipe are saved.

If set, any wheel produced during a recipe build is copied to this directory.

New behavior

When a recipe (any PyProjectRecipe) is built, it checks whether a prebuilt version is available. If so, it uses it; otherwise, it falls back to building from source.

test requirements: requirements = python3, kivy==master, numpy, openai

with --use-prebuilt-version-for kivy

[INFO]:    Building numpy for arm64-v8a
[INFO]:    numpy apparently isn't already in site-packages
[INFO]:    Writing cross file at: /tmp/android.meson.cross
[DEBUG]:   -> running pip3 install numpy==2.3.0 --ignore-installed --disable-pip-version-check --python-version 3.14.2 --only-binary=:all: --no-deps --platform=android_24_arm64_v8a --platform=android_24_aarch64 --extra-index-url https://anshdadwal.is-a.dev/p4a-wheels/p4a/ --extra-index-url https://chaquo.com/pypi-13.1/ --dry-run
[DEBUG]:   	Defaulting to user installation because normal site-packages is not writeable
[DEBUG]:   	Looking in indexes: https://pypi.org/simple, https://anshdadwal.is-a.dev/p4a-wheels/p4a/, https://chaquo.com/pypi-13.1/
[DEBUG]:   	Collecting numpy==2.3.0
[DEBUG]:   	 Downloading https://github.com/T-Dynamos/p4a-wheels/releases/download/1.2/numpy-2.3.0-cp314-cp314-android_24_aarch64.whl (6.9 MB)
     ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 6.9/6.9 MB 683.1 kB/s  0:00:09
[DEBUG]:   	Would install numpy-2.3.0
[INFO]:    Prebuilt pip wheel found, skipping build_arch
[INFO]:    Installing prebuilt built wheel
[DEBUG]:   -> running pip3 install numpy==2.3.0 --ignore-installed --disable-pip-version-check --python-version 3.14.2 --only-binary=:all: --no-deps --platform=android_24_arm64_v8a --platform=android_24_aarch64 --extra-index-url https://anshdadwal.is-a.dev/p4a-wheels/p4a/ --extra-index-url https://chaquo.com/pypi-13.1/ --target /home/tdynamos/EarthFM/.buildozer/android/platform/build-arm64-v8a_armeabi_v7a/build/python-installs/earthfm/arm64-v8a --upgrade
[DEBUG]:   	Looking in indexes: https://pypi.org/simple, https://anshdadwal.is-a.dev/p4a-wheels/p4a/, https://chaquo.com/pypi-13.1/
[DEBUG]:   	Collecting numpy==2.3.0
[DEBUG]:   	 Using cached https://github.com/T-Dynamos/p4a-wheels/releases/download/1.2/numpy-2.3.0-cp314-cp314-android_24_aarch64.whl (6.9 MB)
[DEBUG]:   	Installing collected packages: numpy
[DEBUG]:   	Successfully installed numpy-2.3.0


[INFO]:    Building kivy for arm64-v8a
[INFO]:    kivy apparently isn't already in site-packages
[DEBUG]:   -> running pip3 install kivy --ignore-installed --disable-pip-version-check --python-version 3.14.2 --only-binary=:all: --no-deps --platform=android_24_arm64_v8a --platform=android_24_aarch64 --extra-index-url https://anshdadwal.is-a.dev/p4a-wheels/p4a/ --extra-index-url https://chaquo.com/pypi-13.1/ --dry-run
[DEBUG]:   	Defaulting to user installation because normal site-packages is not writeable
[DEBUG]:   	Looking in indexes: https://pypi.org/simple, https://anshdadwal.is-a.dev/p4a-wheels/p4a/, https://chaquo.com/pypi-13.1/
[DEBUG]:   	Collecting kivy
[DEBUG]:   	 Downloading https://github.com/T-Dynamos/p4a-wheels/releases/download/1.2/kivy-2.3.1-cp314-cp314-android_24_aarch64.whl (5.5 MB)
     ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 5.5/5.5 MB 3.6 MB/s  0:00:01
[DEBUG]:   	Would install Kivy-2.3.1
[INFO]:    Prebuilt pip wheel found, skipping build_arch
[INFO]:    Installing prebuilt built wheel
[DEBUG]:   -> running pip3 install kivy --ignore-installed --disable-pip-version-check --python-version 3.14.2 --only-binary=:all: --no-deps --platform=android_24_arm64_v8a --platform=android_24_aarch64 --extra-index-url https://anshdadwal.is-a.dev/p4a-wheels/p4a/ --extra-index-url https://chaquo.com/pypi-13.1/ --target /home/tdynamos/EarthFM/.buildozer/android/platform/build-arm64-v8a_armeabi_v7a/build/python-installs/earthfm/arm64-v8a --upgrade
[DEBUG]:   	Looking in indexes: https://pypi.org/simple, https://anshdadwal.is-a.dev/p4a-wheels/p4a/, https://chaquo.com/pypi-13.1/
[DEBUG]:   	Collecting kivy
[DEBUG]:   	 Using cached https://github.com/T-Dynamos/p4a-wheels/releases/download/1.2/kivy-2.3.1-cp314-cp314-android_24_aarch64.whl (5.5 MB)
[DEBUG]:   	Installing collected packages: kivy
[DEBUG]:   	Successfully installed kivy-2.3.1

Also works if a package recipe does not exist; available packages are installed at a later stage.

TODO:

1. Add options in buildozer, currently works like:

p4a.extra_args =  --extra-index-url https://anshdadwal.is-a.dev/p4a-wheels/p4a/ --extra-index-url https://chaquo.com/pypi-13.1/ 

[T-Dynamos]

Not sure why ci is failing.

System.IO.IOException: No space left on device

[kuzeyron]

platform_tags=self.get_wheel_platform_tag(arch.arch)[0], could be prettier with platform_tags=next(self.get_wheel_platform_tag(arch.arch)),