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#!/usr/bin/env python |
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"""Command-line interface.""" |
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import sys |
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import time |
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import argparse |
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import subprocess |
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import logging |
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import yorm |
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from . import CLI, VERSION, DESCRIPTION |
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from . import common |
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from . import services |
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from .data import Data |
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from .application import Application |
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from .manager import get_manager |
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log = logging.getLogger(__name__) |
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daemon = Application(CLI, filename=CLI) |
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def main(args=None): |
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"""Process command-line arguments and run the program.""" |
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# Shared options |
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debug = argparse.ArgumentParser(add_help=False) |
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debug.add_argument('-V', '--version', action='version', version=VERSION) |
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group = debug.add_mutually_exclusive_group() |
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group.add_argument('-v', '--verbose', action='count', default=0, |
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help="enable verbose logging") |
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group.add_argument('-q', '--quiet', action='store_const', const=-1, |
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dest='verbose', help="only display errors and prompts") |
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shared = {'formatter_class': common.HelpFormatter, |
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'parents': [debug]} |
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# Build main parser |
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parser = argparse.ArgumentParser(prog=CLI, description=DESCRIPTION, |
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**shared) |
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parser.add_argument('-d', '--daemon', metavar='DELAY', nargs='?', const=60, |
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type=int, help="run continuously with delay [seconds]") |
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parser.add_argument('-f', '--file', help="custom settings file path") |
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subs = parser.add_subparsers(help="", dest='command', metavar="<command>") |
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# Build switch parser |
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info = "start applications on another computer" |
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sub = subs.add_parser('switch', description=info.capitalize() + '.', |
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help=info, **shared) |
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sub.add_argument('name', nargs='?', |
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help="computer to queue for launch (default: current)") |
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# Build clean parser |
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info = "display and delete conflicted files" |
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sub = subs.add_parser('clean', description=info.capitalize() + '.', |
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help=info, **shared) |
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sub.add_argument('-f', '--force', action='store_true', |
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help="actually delete the conflicted files") |
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# Build edit parser |
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info = "launch the settings file for editing" |
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sub = subs.add_parser('edit', description=info.capitalize() + '.', |
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help=info, **shared) |
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# Parse arguments |
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args = parser.parse_args(args=args) |
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kwargs = {'delay': args.daemon} |
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if args.command == 'switch': |
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kwargs['switch'] = args.name if args.name else True |
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elif args.command == 'clean': |
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kwargs['delete'] = True |
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kwargs['force'] = args.force |
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elif args.command == 'edit': |
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kwargs['edit'] = True |
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# Configure logging |
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common.configure_logging(args.verbose) |
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# Run the program |
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try: |
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log.debug("Running main command...") |
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success = run(path=args.file, **kwargs) |
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except KeyboardInterrupt: |
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msg = "command canceled" |
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if common.verbosity == common.MAX_VERBOSITY: |
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log.exception(msg) |
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else: |
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log.debug(msg) |
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success = False |
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if success: |
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log.debug("Command succeeded") |
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else: |
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log.debug("Command failed") |
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sys.exit(1) |
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def run(path=None, cleanup=True, delay=None, |
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switch=None, |
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edit=False, |
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delete=False, force=False): |
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"""Run the program. |
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:param path: custom settings file path |
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:param cleanup: remove unused items from the config |
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:param delay: number of seconds to delay before repeating |
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:param switch: computer name to queue for launch |
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:param edit: launch the configuration file for editing |
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:param delete: attempt to delete conflicted files |
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:param force: actually delete conflicted files |
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""" |
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manager = get_manager() |
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root = services.find_root() |
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path = path or services.find_config_path(root=root) |
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data = Data() |
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yorm.sync(data, path) |
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config = data.config |
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status = data.status |
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log.info("Identifying current computer...") |
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computer = config.computers.get_current() |
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log.info("Current computer: %s", computer) |
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if edit: |
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return manager.launch(path) |
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if delete: |
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return services.delete_conflicts(root, force=force) |
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if log.getEffectiveLevel() >= logging.WARNING: |
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print("Updating application state...") |
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if switch is True: |
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switch = computer |
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elif switch: |
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switch = config.computers.match(switch) |
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if switch: |
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data.queue(config, status, switch) |
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while True: |
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data.launch(config, status, computer, manager) |
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data.update(config, status, computer, manager) |
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if delay is None: |
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break |
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log.info("Delaying for %s seconds...", delay) |
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time.sleep(delay) |
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log.info("waiting for changes...") |
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while not data.modified: |
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time.sleep(1) |
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services.delete_conflicts(root, config_only=True, force=True) |
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if cleanup: |
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data.clean(config, status) |
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if delay is None: |
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return _restart_daemon(manager) |
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return True |
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def _restart_daemon(manager): |
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cmd = "nohup {} --daemon --verbose >> /tmp/mine.log 2>&1 &".format(CLI) |
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if daemon and not manager.is_running(daemon): |
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log.warning("Daemon is not running, attempting to restart...") |
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log.info("$ %s", cmd) |
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subprocess.call(cmd, shell=True) |
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if manager.is_running(daemon): |
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return True |
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log.error("Manually start daemon: %s", cmd) |
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return False |
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return True |
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if __name__ == '__main__': # pragma: no cover (manual test) |
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main() |
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jacebrowning /
mine
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