mirror of
https://github.com/zrepl/zrepl.git
synced 2024-11-28 11:25:20 +01:00
34 lines
832 B
Go
34 lines
832 B
Go
|
package property
|
||
|
|
|
||
|
|
import (
|
||
|
|
"fmt"
|
||
|
|
"regexp"
|
||
|
|
)
|
||
|
|
|
||
|
|
type Property string
|
||
|
|
|
||
|
|
// Check property name conforms to zfsprops(8), section "User Properties"
|
||
|
|
// Keep regex and error message in sync!
|
||
|
|
var (
|
||
|
|
propertyValidNameChars = regexp.MustCompile(`^[0-9a-zA-Z-_\.:]+$`)
|
||
|
|
propertyValidNameCharsErr = fmt.Errorf("property name must only contain alphanumeric chars and any in %q", "-_.:")
|
||
|
|
)
|
||
|
|
|
||
|
|
func (p Property) Validate() error {
|
||
|
|
const PROPERTYNAMEMAXLEN int = 256
|
||
|
|
|
||
|
|
if len(p) < 1 {
|
||
|
|
return fmt.Errorf("property name cannot be empty")
|
||
|
|
}
|
||
|
|
if len(p) > PROPERTYNAMEMAXLEN {
|
||
|
|
return fmt.Errorf("property name longer than %d characters", PROPERTYNAMEMAXLEN)
|
||
|
|
}
|
||
|
|
if p[0] == '-' {
|
||
|
|
return fmt.Errorf("property name cannot start with '-'")
|
||
|
|
}
|
||
|
|
if !propertyValidNameChars.MatchString(string(p)) {
|
||
|
|
return propertyValidNameCharsErr
|
||
|
|
}
|
||
|
|
return nil
|
||
|
|
}
|