10 from arvados_fuse import *
12 if __name__ == '__main__':
13 # Handle command line parameters
14 parser = argparse.ArgumentParser(
15 description='''Mount Keep data under the local filesystem. By default, if neither
16 --collection or --tags is specified, this mounts as a virtual directory
17 under which all Keep collections are available as subdirectories named
18 with the Keep locator; however directories will not be visible to 'ls'
19 until a program tries to access them.''',
21 Note: When using the --exec feature, you must either specify the
22 mountpoint before --exec, or mark the end of your --exec arguments
25 parser.add_argument('mountpoint', type=str, help="""Mount point.""")
26 parser.add_argument('--allow-other', action='store_true',
27 help="""Let other users read the mount""")
28 parser.add_argument('--collection', type=str, help="""Mount only the specified collection at the mount point.""")
29 parser.add_argument('--tags', action='store_true', help="""Mount as a virtual directory consisting of subdirectories representing tagged
30 collections on the server.""")
31 parser.add_argument('--groups', action='store_true', help="""Mount as a virtual directory consisting of subdirectories representing groups on the server.""")
32 parser.add_argument('--debug', action='store_true', help="""Debug mode""")
33 parser.add_argument('--foreground', action='store_true', help="""Run in foreground (default is to daemonize unless --exec specified)""", default=False)
34 parser.add_argument('--exec', type=str, nargs=argparse.REMAINDER,
35 dest="exec_args", metavar=('command', 'args', '...', '--'),
36 help="""Mount, run a command, then unmount and exit""")
38 args = parser.parse_args()
40 # Create the request handler
41 operations = Operations(os.getuid(), os.getgid())
44 api = arvados.api('v1')
45 e = operations.inodes.add_entry(GroupsDirectory(llfuse.ROOT_INODE, operations.inodes, api))
47 api = arvados.api('v1')
48 e = operations.inodes.add_entry(TagsDirectory(llfuse.ROOT_INODE, operations.inodes, api))
49 elif args.collection != None:
50 # Set up the request handler with the collection at the root
51 e = operations.inodes.add_entry(CollectionDirectory(llfuse.ROOT_INODE, operations.inodes, args.collection))
53 # Set up the request handler with the 'magic directory' at the root
54 operations.inodes.add_entry(MagicDirectory(llfuse.ROOT_INODE, operations.inodes))
56 # FUSE options, see mount.fuse(8)
57 opts = [optname for optname in ['allow_other', 'debug']
58 if getattr(args, optname)]
61 # Initialize the fuse connection
62 llfuse.init(operations, args.mountpoint, opts)
64 t = threading.Thread(None, lambda: llfuse.main())
67 # wait until the driver is finished initializing
68 operations.initlock.wait()
72 sp = subprocess.Popen(args.exec_args, shell=False)
74 # forward signals to the process.
75 signal.signal(signal.SIGINT, lambda signum, frame: sp.send_signal(signum))
76 signal.signal(signal.SIGTERM, lambda signum, frame: sp.send_signal(signum))
77 signal.signal(signal.SIGQUIT, lambda signum, frame: sp.send_signal(signum))
79 # wait for process to complete.
82 # restore default signal handlers.
83 signal.signal(signal.SIGINT, signal.SIG_DFL)
84 signal.signal(signal.SIGTERM, signal.SIG_DFL)
85 signal.signal(signal.SIGQUIT, signal.SIG_DFL)
87 sys.stderr.write('arv-mount: %s -- exec %s\n' % (str(e), args.exec_args))
89 except Exception as e:
90 sys.stderr.write('arv-mount: %s\n' % str(e))
92 subprocess.call(["fusermount", "-u", "-z", args.mountpoint])
96 os.chdir(args.mountpoint)
97 if not args.foreground:
98 daemon_ctx = daemon.DaemonContext(working_directory='.')
100 llfuse.init(operations, '.', opts)