45 lines
761 B
Go
45 lines
761 B
Go
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package util
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import (
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"io"
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"math/rand"
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"os"
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// "strings"
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)
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func RandomString(n int) string {
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var letter = []rune("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789")
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b := make([]rune, n)
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for i := range b {
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b[i] = letter[rand.Intn(len(letter))]
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}
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return string(b)
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}
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func CopyFile(source string, dest string) error {
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sourceFD, err := os.Open(source)
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if err != nil {
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return err
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}
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finfo, err := sourceFD.Stat()
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destFD, err := os.OpenFile(dest, os.O_RDWR|os.O_CREATE, finfo.Mode())
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if err != nil {
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return err
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}
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_, err = io.Copy(destFD, sourceFD)
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if err != nil {
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return err
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}
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sourceFD.Close()
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destFD.Close()
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return nil
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} |