mirror of
https://github.com/v2fly/v2ray-core.git
synced 2024-11-04 09:17:32 -05:00
32 lines
592 B
Go
32 lines
592 B
Go
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package main
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import (
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"crypto/sha1"
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"encoding/hex"
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"fmt"
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"io"
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"os"
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"path/filepath"
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)
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func CalcMetadata(file string, writer io.Writer) error {
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fileReader, err := os.Open(file)
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if err != nil {
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return err
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}
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defer fileReader.Close()
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hasher := sha1.New()
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nBytes, err := io.Copy(hasher, fileReader)
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if err != nil {
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return err
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}
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sha1sum := hasher.Sum(nil)
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filename := filepath.Base(file)
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fmt.Fprintf(writer, "File: %s\n", filename)
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fmt.Fprintf(writer, "Size: %d\n", nBytes)
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fmt.Fprintf(writer, "SHA1: %s\n", hex.EncodeToString(sha1sum))
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fmt.Fprintln(writer)
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return nil
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}
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