// Mount the file system according to arguments in the supplied context.
func mountWithArgs(
bucketName string,
mountPoint string,
flags *flagStorage,
mountStatus *log.Logger) (mfs *fuse.MountedFileSystem, err error) {
// Enable invariant checking if requested.
if flags.DebugInvariants {
syncutil.EnableInvariantChecking()
}
// Grab the connection.
mountStatus.Println("Opening GCS connection...")
conn, err := getConn(flags)
if err != nil {
err = fmt.Errorf("getConn: %v", err)
return
}
// Mount the file system.
mfs, err = mountWithConn(
context.Background(),
bucketName,
mountPoint,
flags,
conn,
mountStatus)
if err != nil {
err = fmt.Errorf("mountWithConn: %v", err)
return
}
return
}
func main() {
// Make logging output better.
log.SetFlags(log.Ldate | log.Ltime | log.Lmicroseconds)
app := newApp()
app.Action = func(c *cli.Context) {
var err error
// We should get two arguments exactly. Otherwise error out.
if len(c.Args()) != 2 {
fmt.Fprintf(
os.Stderr,
"Error: %s takes exactly two arguments.\n\n",
app.Name)
cli.ShowAppHelp(c)
os.Exit(1)
}
// Populate and parse flags.
bucketName := c.Args()[0]
mountPoint := c.Args()[1]
flags := populateFlags(c)
// Enable invariant checking if requested.
if flags.DebugInvariants {
syncutil.EnableInvariantChecking()
}
// Mount the file system.
mfs, err := mount(
context.Background(),
bucketName,
mountPoint,
flags)
if err != nil {
log.Fatalf("Mounting file system: %v", err)
}
log.Println("File system has been successfully mounted.")
// Let the user unmount with Ctrl-C (SIGINT).
registerSIGINTHandler(mfs.Dir())
// Wait for the file system to be unmounted.
err = mfs.Join(context.Background())
if err != nil {
err = fmt.Errorf("MountedFileSystem.Join: %v", err)
return
}
log.Println("Successfully exiting.")
}
err := app.Run(os.Args)
if err != nil {
log.Fatalln(err)
}
}
func TestMain(m *testing.M) {
flag.Parse()
if *fCheckInvariants {
syncutil.EnableInvariantChecking()
}
os.Exit(m.Run())
}
// Mount the file system according to arguments in the supplied context.
func mountFromContext(
c *cli.Context,
mountStatus *log.Logger) (mfs *fuse.MountedFileSystem, err error) {
// Extract arguments.
if len(c.Args()) != 2 {
err = fmt.Errorf(
"Error: %s takes exactly two arguments. Run `%s --help` for more info.",
path.Base(os.Args[0]),
path.Base(os.Args[0]))
return
}
bucketName := c.Args()[0]
mountPoint := c.Args()[1]
// Populate and parse flags.
flags := populateFlags(c)
// Enable invariant checking if requested.
if flags.DebugInvariants {
syncutil.EnableInvariantChecking()
}
// Grab the connection.
mountStatus.Println("Opening GCS connection...")
conn, err := getConn(flags)
if err != nil {
err = fmt.Errorf("getConn: %v", err)
return
}
// Mount the file system.
mfs, err = mount(
context.Background(),
bucketName,
mountPoint,
flags,
conn,
mountStatus)
if err != nil {
err = fmt.Errorf("mount: %v", err)
return
}
return
}