setup.py

import subprocess
import os

from setuptools import setup

MajorVersion = "4"

# verify cmake is installed
if subprocess.run(["cmake", "--version"]).returncode:
    raise RuntimeError(
        "Could not find cmake command. cmake is required to get compiler version."
    )

# get the compiler id and version
if subprocess.run(
    ["cmake", "-S", "get_compiler", "-B", "get_compiler/build"]
).returncode:
    raise RuntimeError(
        "Could not find a C++ 20 compiler. Do you have a C++ 20 compiler installed?"
    )

# Get the compiler variables generated by the cmake file
with open("get_compiler/build/compiler_id.txt") as f:
    compiler_id_str = f.read().strip()
with open("get_compiler/build/compiler_version.txt") as f:
    compiler_version = f.read().strip().split(".", 1)[0]

# convert the compiler id to an int so it can be used in a version number
compiler_id_int = 0
for b in compiler_id_str.encode("utf-8"):
    compiler_id_int <<= 8
    compiler_id_int += b

# combine the compiler id and compiler version into a version number
version = f"{MajorVersion}.{compiler_id_int}.{compiler_version}"


# write the python file
os.makedirs("src", exist_ok=True)
with open("src/amulet_compiler_version.py", "w") as f:
    f.write(f'compiler_id = "{compiler_id_str}"\n')
    f.write(f'compiler_version = "{compiler_version}"\n')
    f.write(f'__version__ = "{version}"\n')


# run setup with the generated or default version
setup(version=version)