mirror of
https://github.com/rclone/rclone.git
synced 2024-12-21 11:06:55 +08:00
23 lines
587 B
Go
23 lines
587 B
Go
//go:build windows
|
|
|
|
package file
|
|
|
|
import (
|
|
"os"
|
|
)
|
|
|
|
// FindUnusedDriveLetter searches mounted drive list on the system
|
|
// (starting from Z: and ending at D:) for unused drive letter.
|
|
// Returns the letter found (like 'Z') or zero value.
|
|
func FindUnusedDriveLetter() (driveLetter uint8) {
|
|
// Do not use A: and B:, because they are reserved for floppy drive.
|
|
// Do not use C:, because it is normally used for main drive.
|
|
for l := uint8('Z'); l >= uint8('D'); l-- {
|
|
_, err := os.Stat(string(l) + ":" + string(os.PathSeparator))
|
|
if os.IsNotExist(err) {
|
|
return l
|
|
}
|
|
}
|
|
return 0
|
|
}
|