all.py

#!/usr/bin/env python3
"""
Build all Dockerfiles and check the build result
"""

import asyncio
import sys
from asyncio.subprocess import DEVNULL, PIPE

DISTRIBUTIONS = (
    "16.04 18.04 20.04 fedora28 fedora31 archlinux stretch buster centos7".split()
)


async def build_run(dist, verbose=False, parallel=1):
    """Build and run a dockerfile."""
    cmd = f"docker build --build-arg DIST={dist} --build-arg PARALLEL={parallel} -t all/{dist} ."
    if verbose:
        print(f"+ {cmd}\r")
    proc = await asyncio.create_subprocess_exec(
        *cmd.split(), stdout=DEVNULL, stderr=DEVNULL
    )
    await proc.wait()
    if proc.returncode != 0:
        print(f"{dist:10} build failed\r")
        return
    cmd = f"docker run --rm -it all/{dist}"
    if verbose:
        print(f"+ {cmd}\r")
    proc = await asyncio.create_subprocess_exec(
        *cmd.split(), stdout=PIPE, stderr=DEVNULL
    )
    stdout, _ = await proc.communicate()
    stdout = stdout.decode().replace("\r\n", " ")
    if proc.returncode == 0:
        print(f"{dist:10} {stdout}\r")
    else:
        print(f"{dist:10} run failed\r")


if __name__ == "__main__":
    loop = asyncio.get_event_loop()
    if len(sys.argv) > 1:
        loop.run_until_complete(build_run(sys.argv[1], verbose=True, parallel=8))
    else:
        loop.run_until_complete(
            asyncio.gather(*(build_run(dist) for dist in DISTRIBUTIONS))
        )
    loop.close()