donuts-python/build.py at main · tueda/donuts-python · GitHub

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"""The build script."""

import os
import os.path
import shutil
import subprocess

root_dir = os.path.dirname(os.path.abspath(__file__))
java_dir = os.path.join(root_dir, "donuts", "java")
jar_file = os.path.join(java_dir, "donuts-all.jar")

if os.name == "posix":
    gradlew_cmd = "./gradlew"
elif os.name == "nt":
    gradlew_cmd = "gradlew.bat"


def build_jar() -> None:
    """Generate the JAR file."""
    if os.path.isfile(os.path.join(java_dir, "build.gradle")):
        # Build the fat JAR file by Gradle.
        subprocess.run(  # noqa: S603
            [gradlew_cmd, "-Dorg.gradle.project.version=", "donuts-python:shadowJar"],
            cwd=java_dir,
            check=True,
        )
        shutil.copy(
            os.path.join(
                java_dir, "donuts-python", "build", "libs", "donuts-python-all.jar"
            ),
            jar_file,
        )

    if not os.path.isfile(jar_file):
        raise OSError("Failed to generate the JAR file")


def run_gradle(*cmd: str) -> None:
    """Run a Gradle command."""
    if not os.path.isfile(os.path.join(java_dir, "build.gradle")):
        raise FileNotFoundError("build.gradle not found")
    subprocess.run(  # noqa: S603
        [gradlew_cmd, *cmd],
        cwd=java_dir,
        check=True,
    )


if __name__ == "__main__":
    build_jar()