#
# Run `pylint` on all python sources.
#

import os
import subprocess
import unittest

from .. import test


@unittest.skipUnless(test.TestBase.have_test_checkout(), "no test-checkout access")
class TestPylint(test.TestBase):
    def test_pylint(self):
        #
        # Run `pylint` on all python sources. We simply use `find` to locate
        # all `*.py` files, and then manually select the reverse-domain named
        # modules we have.
        #

        checkout = self.locate_test_checkout()

        # Fetch list of checked-in files from git.
        cwd = os.getcwd()
        os.chdir(checkout)
        files = subprocess.check_output(
            [
                "git",
                "ls-tree",
                "-rz",
                "--full-tree",
                "--name-only",
                "HEAD",
            ]
        ).decode()
        os.chdir(cwd)

        # File list is separated by NULs, so split into array.
        files = files.split('\x00')

        # Filter out all our python files (i.e., all modules and files ending in *.py)
        modules = ("assemblers/", "runners/", "sources/", "stages/")
        files = filter(lambda p: p.endswith(".py") or p.startswith(modules), files)

        # Append the checkout-path so all paths are absolute.
        files = map(lambda p: os.path.join(checkout, p), files)

        # Run pylint on all files.
        subprocess.run(["pylint"] + list(files), check=True)