ref: 0318f7c149f98eb2bcbb44b0ca1c7420379190eb
dir: /hugolib/metadata.go/
package hugolib
import (
"errors"
"fmt"
"os"
"time"
)
func interfaceToStringToDate(i interface{}) time.Time {
s := interfaceToString(i)
if d, e := parseDateWith(s, []string{
time.RFC3339,
time.RFC1123Z,
time.RFC1123,
time.RFC822Z,
time.RFC822,
time.ANSIC,
time.UnixDate,
time.RubyDate,
"2006-01-02 15:04:05Z07:00",
"02 Jan 06 15:04 MST",
"2006-01-02",
"02 Jan 2006",
}); e == nil {
return d
}
return time.Unix(0, 0)
}
// TODO remove this and return a proper error.
func errorf(str string, a ...interface{}) {
fmt.Fprintln(os.Stderr, str, a)
}
func parseDateWith(s string, dates []string) (d time.Time, e error) {
for _, dateType := range dates {
if d, e = time.Parse(dateType, s); e == nil {
return
}
}
return d, errors.New(fmt.Sprintf("Unable to parse date: %s", s))
}
func interfaceToBool(i interface{}) bool {
switch b := i.(type) {
case bool:
return b
default:
errorf("Only Boolean values are supported for this YAML key")
}
return false
}
func interfaceArrayToStringArray(i interface{}) []string {
var a []string
switch vv := i.(type) {
case []interface{}:
for _, u := range vv {
a = append(a, interfaceToString(u))
}
}
return a
}
func interfaceToString(i interface{}) string {
switch s := i.(type) {
case string:
return s
default:
errorf("Only Strings are supported for this YAML key")
}
return ""
}