150 lines
7.4 KiB
Python
150 lines
7.4 KiB
Python
"""Portable source-checkout command line interface."""
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import argparse
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import json
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import os
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import subprocess
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import sys
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from pathlib import Path
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from .profiles import Profile, load_defaults
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from .runtime import Runtime, RuntimeError
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from .session import launch_session, session_helper, view
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def parser() -> argparse.ArgumentParser:
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cli = argparse.ArgumentParser(prog='hydra', description='Hydra OS independent VM manager')
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cli.add_argument('--config', type=Path, default=Path(os.environ.get('XDG_CONFIG_HOME', Path.home() / '.config')) / 'hydra')
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cli.add_argument('--state', type=Path, default=Path(os.environ.get('XDG_STATE_HOME', Path.home() / '.local/state')) / 'hydra')
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cli.add_argument('--runtime', type=Path, default=Path(os.environ.get('XDG_RUNTIME_DIR', f'/tmp/hydra-{os.getuid()}')) / 'hydra')
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cli.add_argument('--defaults', type=Path, default=Path('/etc/hydra/defaults.toml'),
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help='Distribution preferences for newly created profiles')
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commands = cli.add_subparsers(dest='command')
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commands.add_parser('menu', help='Open the terminal VM menu')
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download = commands.add_parser('download', help='Download and validate a direct ISO URL')
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download.add_argument('url')
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download.add_argument('--sha256')
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run = commands.add_parser('run', help='Create, start and display a VM from a local ISO or HTTP(S) URL')
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run.add_argument('source')
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run.add_argument('--name', required=True)
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run.add_argument('--memory', '--ram', type=int, default=4096, help='VM RAM in MiB')
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run.add_argument('--cpus', type=int, default=2)
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run.add_argument('--disk-size', default='40G')
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run.add_argument('--sha256')
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run.add_argument('--no-view', action='store_true')
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run.add_argument('--windowed', action='store_true')
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opener = commands.add_parser('open', help='Start a stopped VM or reconnect a running VM')
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opener.add_argument('name')
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opener.add_argument('--no-view', action='store_true')
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opener.add_argument('--windowed', action='store_true')
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add = commands.add_parser('add', help='Create a VM profile without starting it')
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add.add_argument('name')
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add.add_argument('--iso', type=Path)
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add.add_argument('--memory', type=int, default=4096)
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add.add_argument('--cpus', type=int, default=2)
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add.add_argument('--disk-size', default='40G')
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add.add_argument('--graphics', choices=('auto', 'software'), default='auto')
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add.add_argument('--network', choices=('user', 'bridge'))
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add.add_argument('--bridge')
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add.add_argument('--width', type=int)
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add.add_argument('--height', type=int)
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add.add_argument('--refresh-millihz', type=int)
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media = commands.add_parser('media', help='Attach or detach installation media while stopped')
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media.add_argument('name')
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selection = media.add_mutually_exclusive_group(required=True)
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selection.add_argument('--iso', type=Path)
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selection.add_argument('--detach', action='store_true')
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commands.add_parser('list', help='List configured VMs')
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status = commands.add_parser('status', help='Query VM state through private QMP')
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status.add_argument('name', nargs='?')
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for command in ('start', 'shutdown', 'stop'):
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cmd = commands.add_parser(command)
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cmd.add_argument('name')
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if command == 'stop':
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cmd.add_argument('--force', action='store_true', required=True)
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viewer = commands.add_parser('view', help='Connect a viewer without changing VM power')
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viewer.add_argument('name')
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viewer.add_argument('--windowed', action='store_true')
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session = commands.add_parser('session', help='Start the minimal Hydra OS labwc session')
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session.add_argument('--nested', action='store_true')
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helper = commands.add_parser('_session-helper', help=argparse.SUPPRESS)
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helper.add_argument('operation')
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helper.add_argument('manifest', type=Path)
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return cli
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def _download_progress():
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last = None
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interactive = sys.stderr.isatty()
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def report(received, total):
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nonlocal last
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step = received * 100 // total if total else received // (64 * 1024 * 1024)
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if last == step:
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return
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last = step
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if not interactive and received and (total is None or received != total):
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return
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suffix = f' / {total // (1024 * 1024)} MiB ({step}%)' if total else ' MiB'
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print(f'Download: {received // (1024 * 1024)}{suffix}', file=sys.stderr)
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return report
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def main(argv: list[str] | None = None) -> int:
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cli = parser()
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args = cli.parse_args(argv)
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runtime = Runtime(args.config, args.state, args.runtime)
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try:
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if args.command is None and not sys.stdin.isatty():
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cli.print_help()
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return 0
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if args.command in (None, 'menu'):
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from .launch import session_manifest
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from .menu import run_menu
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return run_menu(runtime, manifest=session_manifest(runtime))
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if args.command == 'download':
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from .media import download_iso
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print(download_iso(args.url, sha256=args.sha256, progress=_download_progress()))
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return 0
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if args.command == 'run':
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from .launch import run_source
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return run_source(runtime, args.source, name=args.name, memory=args.memory,
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cpus=args.cpus, disk_size=args.disk_size, sha256=args.sha256,
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no_view=args.no_view, windowed=args.windowed, defaults=args.defaults,
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progress=_download_progress())
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if args.command == 'open':
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from .launch import open_vm
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return open_vm(runtime, args.name, no_view=args.no_view, windowed=args.windowed)
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if args.command == 'view':
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return view(runtime, args.name, windowed=args.windowed)
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elif args.command == 'session':
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return launch_session(runtime, nested=args.nested)
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elif args.command == '_session-helper':
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return session_helper(args.operation, args.manifest)
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elif args.command == 'add':
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preferences = load_defaults(args.defaults)
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preferences.update({key: getattr(args, key) for key in
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('network', 'bridge', 'width', 'height', 'refresh_millihz')
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if getattr(args, key) is not None})
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profile = Profile(args.name, args.iso, args.memory, args.cpus, args.disk_size,
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args.graphics, **preferences)
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runtime.add(profile)
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result = {'name': profile.name, 'status': 'added'}
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elif args.command == 'media':
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result = runtime.media(args.name, None if args.detach else args.iso)
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elif args.command == 'list':
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result = [{'name': profile.name, 'iso': str(profile.iso) if profile.iso else None} for profile in runtime.profiles()]
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elif args.command == 'status':
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result = runtime.status(args.name) if args.name else [runtime.status(p.name) for p in runtime.profiles()]
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elif args.command == 'stop':
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result = runtime.stop(args.name, force=args.force)
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else:
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result = getattr(runtime, args.command)(args.name)
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print(json.dumps(result, indent=2))
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return 0
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except KeyboardInterrupt:
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print('hydra: Cancelled', file=sys.stderr)
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return 130
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except (RuntimeError, OSError, ValueError, subprocess.TimeoutExpired) as exc:
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print(f'hydra: {exc}', file=sys.stderr)
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return 1
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