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