recipes: new recipe pydantic-core

[kacper-the-programmer]

No description provided.

[T-Dynamos]

@Kacper-OS
This won't work, you need to setup rust on host system and then set CARGO_BUILD_TARGET=<arch code>-linux-androideabi as environment variable first
Where arch codes are as follows:

armv7 = armeabi-v7a
aarch64 = arm64-v8a

Setps to setup rust:

curl https://sh.rustup.rs -sSf > rustup.sh
sh rustup.sh -y --default-toolchain "<rust version here>"
export PATH="~/.cargo/bin:${PATH}"
rustup target add "<arch code>-linux-androideabi"

[kacper-the-programmer]

OK, thanks I will fix this issue

[kacper-the-programmer]

OK, now what I have to do ?

[T-Dynamos]

from shutil import which
import sh
from pythonforandroid.recipe import CompiledComponentsPythonRecipe
from pythonforandroid.logger import error, shprint
from pythonforandroid.util import current_directory

class PydanticcoreRecipe(CompiledComponentsPythonRecipe):
    version = "2.16.1"
    url = (
        "https://github.com/pydantic/pydantic-core/archive/refs/tags/v{version}.tar.gz"
    )
    depends = ["typing-extensions"]

    def get_recipe_env(self, arch):
        env = super().get_recipe_env(arch)
        env["CARGO_BUILD_TARGET"] = "{}-linux-androideabi".format(
            {
                "arm64-v8a": "aarch64",
                "armeabi-v7a": "armv7",
                "x86_64": "x86_64",
                "x86": "i686",
            }[str(arch)]
        )
        env['PATH'] = (
            '{hostpython_dir}:{old_path}').format(
                hostpython_dir=self.get_recipe(
                    'hostpython3' , self.ctx).get_path_to_python(),
                old_path=env['PATH'])
        return env

    def build_arch(self, arch):
        with current_directory(self.get_build_dir(arch.arch)):
            shprint(
                sh.maturin,
                "build",
                "-i",
                "python3.11",
                _env=self.get_recipe_env(arch)
            )


recipe = PydanticcoreRecipe()

You need to add things in there, I have made basic script.
also don't forgot to add detection if toolchain is installed.

rustup target add armv7-linux-androideabi

Like this...

[T-Dynamos]

However build still fails:

  --- stderr
  Traceback (most recent call last):
    File "/home/tdynamos/PyJniusTester/.buildozer/android/platform/build-armeabi-v7a/build/other_builds/pydantic-core/armeabi-v7a__ndk_target_21/pydantic-core/generate_self_schema.py", line 17, in <module>
      from typing_extensions import TypedDict, get_args, get_origin, is_typeddict
  ModuleNotFoundError: No module named 'typing_extensions'
  thread 'main' panicked at build.rs:29:9:
  generate_self_schema.py failed with exit status: 1
  note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
warning: build failed, waiting for other jobs to finish...
💥 maturin failed===================>   ] 96/105: regex-automata              
  Caused by: Failed to build a native library through cargo
  Caused by: Cargo build finished with "exit status: 101": `env -u CARGO PYO3_CONFIG_FILE="/home/tdynamos/PyJniusTester/.buildozer/android/platform/build-armeabi-v7a/build/other_builds/pydantic-core/armeabi-v7a__ndk_target_21/pydantic-core/target/maturin/pyo3-config-armv7-linux-androideabi-3.11.txt" "cargo" "rustc" "--features" "pyo3/extension-module" "--target" "armv7-linux-androideabi" "--message-format" "json-render-diagnostics" "--manifest-path" "/home/tdynamos/PyJniusTester/.buildozer/android/platform/build-armeabi-v7a/build/other_builds/pydantic-core/armeabi-v7a__ndk_target_21/pydantic-core/Cargo.toml" "--lib" "--crate-type" "cdylib"`


  STDERR:

This is because of typing_extensions is not installed in hostpython. You can easily fix that by minimal patching, add typing_extensions.py from offcial source to build dir.

Edit:
After fixing that there is one more error which also can be fixed easily.

= note: ld: error: unable to find library -llog

Doing something like:

self.install_libs(arch, join(
            arch.ndk_lib_dir,
            'lib{name}.so'.format(name="log"),
        ) )

Before build.

[kacper-the-programmer]

ok thanks again

[T-Dynamos]

Can be closed as surpassed by #2962