rclone/cmd/mountlib/utils.go

56 lines
1 KiB
Go
Raw Normal View History

package mountlib
import (
"io"
"os"
"runtime"
"github.com/pkg/errors"
"github.com/rclone/rclone/fs"
)
// CheckMountEmpty checks if folder is empty
func CheckMountEmpty(mountpoint string) error {
fp, fpErr := os.Open(mountpoint)
if fpErr != nil {
return errors.Wrap(fpErr, "Can not open: "+mountpoint)
}
defer fs.CheckClose(fp, &fpErr)
_, fpErr = fp.Readdirnames(1)
if fpErr == io.EOF {
return nil
}
msg := "Directory is not empty: " + mountpoint + " If you want to mount it anyway use: --allow-non-empty option"
if fpErr == nil {
return errors.New(msg)
}
return errors.Wrap(fpErr, msg)
}
// ClipBlocks clips the blocks pointed to the OS max
func ClipBlocks(b *uint64) {
var max uint64
switch runtime.GOOS {
case "windows":
if runtime.GOARCH == "386" {
max = (1 << 32) - 1
} else {
max = (1 << 43) - 1
}
case "darwin":
// OSX FUSE only supports 32 bit number of blocks
// https://github.com/osxfuse/osxfuse/issues/396
max = (1 << 32) - 1
default:
// no clipping
return
}
if *b > max {
*b = max
}
}