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#!/usr/bin/env python |
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# -*- coding: utf-8 -*- |
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import os |
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import sys |
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import argparse |
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try: |
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import configparser # Python 3 |
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except ImportError: |
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import ConfigParser as configparser # Python 2 |
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import subprocess |
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import logging |
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CONFIG_FILENAMES = ['.verchew', '.verchewrc', 'verchew.ini', '.verchew.ini'] |
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log = logging.getLogger(__name__) |
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def main(): |
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args = parse_args() |
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configure_logging(args.verbose) |
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path = find_config() |
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config = parse_config(path) |
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if not check_dependencies(config): |
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sys.exit(1) |
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def parse_args(): |
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parser = argparse.ArgumentParser() |
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# TODO: add '--version' option |
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# parser.add_argument('-V', '--version', action='version', version=VERSION) |
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parser.add_argument('-v', '--verbose', action='count', default=0, |
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help="enable verbose logging") |
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return parser.parse_args() |
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def configure_logging(count=0): |
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if count == 0: |
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level = logging.WARNING |
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elif count == 1: |
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level = logging.INFO |
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else: |
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level = logging.DEBUG |
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logging.basicConfig(level=level, format="%(levelname)s: %(message)s") |
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def find_config(root=None, config_filenames=None): |
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root = root or os.getcwd() |
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config_filenames = config_filenames or CONFIG_FILENAMES |
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path = None |
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log.info("Looking for config file in: %s", root) |
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log.debug("Filename options: %s", ", ".join(config_filenames)) |
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for filename in os.listdir(root): |
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if filename in config_filenames: |
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path = os.path.join(root, filename) |
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log.info("Found config file: %s", path) |
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return path |
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msg = "No config file found in: {0}".format(root) |
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raise RuntimeError(msg) |
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def parse_config(path): |
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data = {} |
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log.info("Parsing config file: %s", path) |
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config = configparser.ConfigParser() |
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config.read(path) |
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for section in config.sections(): |
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data[section] = {} |
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for name, value in config.items(section): |
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data[section][name] = value |
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return data |
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def check_dependencies(config): |
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success = [] |
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for name, settings in config.items(): |
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show("Checking the version of {0}...".format(name), head=True) |
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output = get_version(settings['cli']) |
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if settings['version'] in output: |
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show("✔ MATCHED: {0}".format(settings['version'])) |
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success.append("✔") |
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else: |
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show("✖ EXPECTED: {0}".format(settings['version'])) |
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success.append("✖") |
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show("Results: " + " ".join(success), head=True) |
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return "✖" not in success |
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def get_version(program): |
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args = [program, '--version'] |
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show("$ {0}".format(" ".join(args))) |
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try: |
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output = subprocess.check_output(args, stderr=subprocess.STDOUT) |
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except OSError: |
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output = "command not found" |
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log.debug("Command output: %r", output) |
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show(output.splitlines()[0]) |
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return output |
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def show(text, start='', end='\n', head=False): |
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"""Python 2 and 3 compatible version of print.""" |
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if head: |
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start = '\n' |
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end = '\n\n' |
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if log.getEffectiveLevel() < logging.WARNING: |
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log.info(text) |
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else: |
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sys.stdout.write(start + text + end) |
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if __name__ == '__main__': # pragma: no cover |
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main() |
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jacebrowning /
verchew
