themattrix/bashup

#!/usr/bin/env python

import glob
import itertools
import fnmatch
import os
import os.path
import subprocess
import sys

PACKAGE_DIR = 'bashup'


def main(args):
    try:
        if args and args[0] == '--static-analysis':
            run_static_analysis()
        run_unit_tests()
    except ProcessError as e:
        print(str(e))
        sys.exit(e.status)


def run_static_analysis():
    analyze_rst_files()
    analyze_setup_py()
    analyze_source_with_flake8()
    analyze_source_with_pylint()


def run_unit_tests():
    run(('py.test', '--cov', PACKAGE_DIR, PACKAGE_DIR))


def analyze_rst_files():
    rst_iter = itertools.chain(
        glob.iglob('*.rst'),
        recursive_glob(PACKAGE_DIR, '*.rst'))

    for path in rst_iter:
        run(('rst2html.py', '--exit-status=2', path), display_stdout=False)


def analyze_setup_py():
    run((sys.executable,
         'setup.py',
         'check',
         '--strict',
         '--restructuredtext',
         '--metadata'))


def analyze_source_with_flake8():
    run(('flake8', 'setup.py', PACKAGE_DIR))


def analyze_source_with_pylint():
    run(('pylint', '--reports=no', '--rcfile', '.pylintrc', PACKAGE_DIR))


def recursive_glob(top, pattern):
    for dirpath, _, filenames in os.walk(top):
        for f in fnmatch.filter(filenames, pattern):
            yield os.path.join(dirpath, f)


# subprocess.CalledProcessError(...) has a different signature in Python 2.6
class ProcessError(Exception):
    def __init__(self, args, status, stdout=None, stderr=None):
        self.args = args
        self.status = status
        self.stdout = (stdout or b'').decode('utf-8', 'ignore')
        self.stderr = (stderr or b'').decode('utf-8', 'ignore')

    def __str__(self):
        def format_output(o):
            return '' if not o else '\n\n[stdout]\n{}'.format(indent(o))

        return (
            'The command {args!r} returned the non-zero exit code {status}.'
            '{stdout}{stderr}'
        ).format(
            args=self.args,
            status=self.status,
            stdout=format_output(self.stdout),
            stderr=format_output(self.stderr))


def run(args, display_stdout=True):
    p = subprocess.Popen(
        args, stdout=None if display_stdout else subprocess.PIPE)
    stdout, _ = p.communicate()
    if p.returncode != 0:
        raise ProcessError(
            args=args,
            status=p.returncode,
            stdout=stdout if display_stdout else None)


# textwrap.indent() doesn't exist in Python 2
def indent(text, prefix='    '):
    return prefix + prefix.join(text.splitlines(True))


if __name__ == '__main__':
    main(args=sys.argv[1:])