X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/1a0a58c4f22af82e0a37440af3b0948771bca5e1..9d095072a57089b4858b632199f3b57871458dee:/services/fuse/bin/arv-mount diff --git a/services/fuse/bin/arv-mount b/services/fuse/bin/arv-mount index 794a468fbc..019e9644a8 100755 --- a/services/fuse/bin/arv-mount +++ b/services/fuse/bin/arv-mount @@ -1,147 +1,10 @@ -#!/usr/bin/env python +#!/usr/bin/env python3 +# Copyright (C) The Arvados Authors. All rights reserved. +# +# SPDX-License-Identifier: AGPL-3.0 -import argparse -import arvados -import daemon -import logging -import os -import signal -import subprocess - -from arvados_fuse import * - -logger = logging.getLogger('arvados.arv-mount') +import arvados_fuse.command if __name__ == '__main__': - # Handle command line parameters - parser = argparse.ArgumentParser( - description='''Mount Keep data under the local filesystem. By default, if neither - --collection or --tags is specified, this mounts as a virtual directory - under which all Keep collections are available as subdirectories named - with the Keep locator; however directories will not be visible to 'ls' - until a program tries to access them.''', - epilog=""" -Note: When using the --exec feature, you must either specify the -mountpoint before --exec, or mark the end of your --exec arguments -with "--". -""") - parser.add_argument('mountpoint', type=str, help="""Mount point.""") - parser.add_argument('--allow-other', action='store_true', - help="""Let other users read the mount""") - parser.add_argument('--collection', type=str, help="""Mount only the specified collection at the mount point.""") - parser.add_argument('--tags', action='store_true', help="""Mount as a virtual directory consisting of subdirectories representing tagged -collections on the server.""") - parser.add_argument('--groups', action='store_true', help="""Mount as a virtual directory consisting of subdirectories representing groups on the server.""") - parser.add_argument('--debug', action='store_true', help="""Debug mode""") - parser.add_argument('--logfile', help="""Write debug logs and errors to the specified file (default stderr).""") - parser.add_argument('--foreground', action='store_true', help="""Run in foreground (default is to daemonize unless --exec specified)""", default=False) - parser.add_argument('--exec', type=str, nargs=argparse.REMAINDER, - dest="exec_args", metavar=('command', 'args', '...', '--'), - help="""Mount, run a command, then unmount and exit""") - - args = parser.parse_args() - args.mountpoint = os.path.realpath(args.mountpoint) - if args.logfile: - args.logfile = os.path.realpath(args.logfile) - - # Daemonize as early as possible, so we don't accidentally close - # file descriptors we're using. - if not (args.exec_args or args.foreground): - os.chdir(args.mountpoint) - daemon_ctx = daemon.DaemonContext(working_directory='.') - daemon_ctx.open() - else: - daemon_ctx = None - - # Configure a logger based on command-line switches. - # If we're using a contemporary Python SDK (mid-August 2014), - # configure the arvados hierarchy logger. - # Otherwise, configure the program root logger. - base_logger = getattr(arvados, 'logger', None) - - if args.logfile: - log_handler = logging.FileHandler(args.logfile) - elif daemon_ctx: - log_handler = logging.NullHandler() - elif base_logger: - log_handler = arvados.log_handler - else: - log_handler = logging.StreamHandler() - - if base_logger is None: - base_logger = logging.getLogger() - else: - base_logger.removeHandler(arvados.log_handler) - base_logger.addHandler(log_handler) - - if args.debug: - base_logger.setLevel(logging.DEBUG) - logger.debug("arv-mount debugging enabled") - - try: - # Create the request handler - operations = Operations(os.getuid(), os.getgid()) - api = arvados.api('v1') - - if args.groups: - e = operations.inodes.add_entry(GroupsDirectory(llfuse.ROOT_INODE, operations.inodes, api)) - elif args.tags: - e = operations.inodes.add_entry(TagsDirectory(llfuse.ROOT_INODE, operations.inodes, api)) - elif args.collection != None: - # Set up the request handler with the collection at the root - e = operations.inodes.add_entry(CollectionDirectory(llfuse.ROOT_INODE, operations.inodes, args.collection)) - else: - # Set up the request handler with the 'magic directory' at the root - operations.inodes.add_entry(MagicDirectory(llfuse.ROOT_INODE, operations.inodes)) - except Exception: - logger.exception("arv-mount: exception during API setup") - exit(1) - - # FUSE options, see mount.fuse(8) - opts = [optname for optname in ['allow_other', 'debug'] - if getattr(args, optname)] - - if args.exec_args: - # Initialize the fuse connection - llfuse.init(operations, args.mountpoint, opts) - - t = threading.Thread(None, lambda: llfuse.main()) - t.start() - - # wait until the driver is finished initializing - operations.initlock.wait() - - rc = 255 - try: - sp = subprocess.Popen(args.exec_args, shell=False) - - # forward signals to the process. - signal.signal(signal.SIGINT, lambda signum, frame: sp.send_signal(signum)) - signal.signal(signal.SIGTERM, lambda signum, frame: sp.send_signal(signum)) - signal.signal(signal.SIGQUIT, lambda signum, frame: sp.send_signal(signum)) - - # wait for process to complete. - rc = sp.wait() - - # restore default signal handlers. - signal.signal(signal.SIGINT, signal.SIG_DFL) - signal.signal(signal.SIGTERM, signal.SIG_DFL) - signal.signal(signal.SIGQUIT, signal.SIG_DFL) - except Exception as e: - logger.exception('arv-mount: exception during exec %s', - args.exec_args) - try: - rc = e.errno - except AttributeError: - pass - finally: - subprocess.call(["fusermount", "-u", "-z", args.mountpoint]) - - exit(rc) - else: - try: - llfuse.init(operations, args.mountpoint, opts) - llfuse.main() - except Exception as e: - logger.exception('arv-mount: exception during mount') - exit(getattr(e, 'errno', 1)) + args = arvados_fuse.command.ArgumentParser().parse_args() + arvados_fuse.command.Mount(args).run()