mirror of
https://github.com/binwiederhier/ntfy.git
synced 2024-11-04 19:04:15 +01:00
106 lines
2.2 KiB
Go
106 lines
2.2 KiB
Go
package util
|
|
|
|
import (
|
|
"errors"
|
|
"fmt"
|
|
"math/rand"
|
|
"os"
|
|
"strings"
|
|
"sync"
|
|
"time"
|
|
)
|
|
|
|
const (
|
|
randomStringCharset = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
|
|
)
|
|
|
|
var (
|
|
random = rand.New(rand.NewSource(time.Now().UnixNano()))
|
|
randomMutex = sync.Mutex{}
|
|
|
|
errInvalidPriority = errors.New("unknown priority")
|
|
)
|
|
|
|
// FileExists checks if a file exists, and returns true if it does
|
|
func FileExists(filename string) bool {
|
|
stat, _ := os.Stat(filename)
|
|
return stat != nil
|
|
}
|
|
|
|
// InStringList returns true if needle is contained in haystack
|
|
func InStringList(haystack []string, needle string) bool {
|
|
for _, s := range haystack {
|
|
if s == needle {
|
|
return true
|
|
}
|
|
}
|
|
return false
|
|
}
|
|
|
|
// RandomString returns a random string with a given length
|
|
func RandomString(length int) string {
|
|
randomMutex.Lock() // Who would have thought that random.Intn() is not thread-safe?!
|
|
defer randomMutex.Unlock()
|
|
b := make([]byte, length)
|
|
for i := range b {
|
|
b[i] = randomStringCharset[random.Intn(len(randomStringCharset))]
|
|
}
|
|
return string(b)
|
|
}
|
|
|
|
// DurationToHuman converts a duration to a human readable format
|
|
func DurationToHuman(d time.Duration) (str string) {
|
|
if d == 0 {
|
|
return "0"
|
|
}
|
|
|
|
d = d.Round(time.Second)
|
|
days := d / time.Hour / 24
|
|
if days > 0 {
|
|
str += fmt.Sprintf("%dd", days)
|
|
}
|
|
d -= days * time.Hour * 24
|
|
|
|
hours := d / time.Hour
|
|
if hours > 0 {
|
|
str += fmt.Sprintf("%dh", hours)
|
|
}
|
|
d -= hours * time.Hour
|
|
|
|
minutes := d / time.Minute
|
|
if minutes > 0 {
|
|
str += fmt.Sprintf("%dm", minutes)
|
|
}
|
|
d -= minutes * time.Minute
|
|
|
|
seconds := d / time.Second
|
|
if seconds > 0 {
|
|
str += fmt.Sprintf("%ds", seconds)
|
|
}
|
|
return
|
|
}
|
|
|
|
// ParsePriority parses a priority string into its equivalent integer value
|
|
func ParsePriority(priority string) (int, error) {
|
|
switch strings.TrimSpace(strings.ToLower(priority)) {
|
|
case "":
|
|
return 0, nil
|
|
case "1", "min":
|
|
return 1, nil
|
|
case "2", "low":
|
|
return 2, nil
|
|
case "3", "default":
|
|
return 3, nil
|
|
case "4", "high":
|
|
return 4, nil
|
|
case "5", "max", "urgent":
|
|
return 5, nil
|
|
default:
|
|
return 0, errInvalidPriority
|
|
}
|
|
}
|
|
|
|
// ExpandHome replaces "~" with the user's home directory
|
|
func ExpandHome(path string) string {
|
|
return os.ExpandEnv(strings.ReplaceAll(path, "~", "$HOME"))
|
|
}
|