rclone/vfs/vfscommon/cachemode.go
2020-04-20 10:42:33 +01:00

49 lines
1.2 KiB
Go

package vfscommon
import (
"fmt"
"github.com/rclone/rclone/lib/errors"
)
// CacheMode controls the functionality of the cache
type CacheMode byte
// CacheMode options
const (
CacheModeOff CacheMode = iota // cache nothing - return errors for writes which can't be satisfied
CacheModeMinimal // cache only the minimum, eg read/write opens
CacheModeWrites // cache all files opened with write intent
CacheModeFull // cache all files opened in any mode
)
var cacheModeToString = []string{
CacheModeOff: "off",
CacheModeMinimal: "minimal",
CacheModeWrites: "writes",
CacheModeFull: "full",
}
// String turns a CacheMode into a string
func (l CacheMode) String() string {
if l >= CacheMode(len(cacheModeToString)) {
return fmt.Sprintf("CacheMode(%d)", l)
}
return cacheModeToString[l]
}
// Set a CacheMode
func (l *CacheMode) Set(s string) error {
for n, name := range cacheModeToString {
if s != "" && name == s {
*l = CacheMode(n)
return nil
}
}
return errors.Errorf("Unknown cache mode level %q", s)
}
// Type of the value
func (l *CacheMode) Type() string {
return "CacheMode"
}