photoprism/pkg/fs/id.go

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package fs
import (
"regexp"
"github.com/photoprism/photoprism/pkg/rnd"
)
var DscNameRegexp = regexp.MustCompile("\\D{3}[\\d_]\\d{4}(.JPG)?")
// IsInt tests if the file base is an integer number.
func IsInt(base string) bool {
if base == "" {
return false
}
for _, r := range base {
if r < 48 || r > 57 {
return false
}
}
return true
}
// IsID tests if the file name looks like an automatically created identifier.
func IsID(fileName string) bool {
if fileName == "" {
return false
}
base := Base(fileName, false)
if IsHash(base) {
return true
}
if IsInt(base) {
return true
}
if dsc := DscNameRegexp.FindString(base); dsc == base {
return true
}
if rnd.IsUID(base, 0) {
return true
}
if IsCanonical(base) {
return true
}
return false
}