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34 lines
730 B
Go
34 lines
730 B
Go
package template
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import (
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"crypto/sha256"
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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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)
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// ComputeHash computes SHA-256 hash of a file at given path.
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// Returns the hex-encoded hash string or an error if the operation fails.
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func ComputeHash(path string) (string, error) {
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f, err := os.Open(path)
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if err != nil {
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return "", fmt.Errorf("open file: %w", err)
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}
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defer f.Close()
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h := sha256.New()
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if _, err := io.Copy(h, f); err != nil {
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return "", fmt.Errorf("read file: %w", err)
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}
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return hex.EncodeToString(h.Sum(nil)), nil
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}
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// ComputeStringHash returns hex-encoded SHA-256 hash of the given string
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func ComputeStringHash(s string) string {
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h := sha256.New()
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h.Write([]byte(s))
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return hex.EncodeToString(h.Sum(nil))
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}
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