27 lines
502 B
Go
27 lines
502 B
Go
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package utils
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import (
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"crypto/sha1"
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"encoding/hex"
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"io"
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"os"
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"sort"
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)
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// HashComposefiles returns a hash of the compose files.
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func HashComposefiles(files []string) (string, error) {
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sort.Strings(files) // ensure the order is always the same
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sha := sha1.New()
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for _, file := range files {
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f, 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 f.Close()
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if _, err := io.Copy(sha, f); err != nil {
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return "", err
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}
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}
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return hex.EncodeToString(sha.Sum(nil)), nil
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}
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