30 lines
549 B
Go
30 lines
549 B
Go
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package util
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import (
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"math/rand"
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"os"
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"time"
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)
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const (
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randomStringCharset = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
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)
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var (
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random = rand.New(rand.NewSource(time.Now().UnixNano()))
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)
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func FileExists(filename string) bool {
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stat, _ := os.Stat(filename)
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return stat != nil
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}
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// RandomString returns a random string with a given length
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func RandomString(length int) string {
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b := make([]byte, length)
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for i := range b {
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b[i] = randomStringCharset[random.Intn(len(randomStringCharset))]
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}
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return string(b)
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}
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