c60cc7ca75
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35 lines
706 B
Go
35 lines
706 B
Go
// Copyright © 2026 Ory Corp
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// SPDX-License-Identifier: Apache-2.0
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package fsx
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import (
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"crypto/sha512"
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"io"
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"io/fs"
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)
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// DirHash computes a directory hash from all files contained in any subdirectories.
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func DirHash(dir fs.FS) ([]byte, error) {
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hash := sha512.New()
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err := fs.WalkDir(dir, ".", func(path string, d fs.DirEntry, err error) error {
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if err != nil {
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return err
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}
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if d.IsDir() {
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return nil
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}
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_, _ = io.WriteString(hash, path) // hash write never errors
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f, err := dir.Open(path)
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if err != nil {
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return err
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}
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_, _ = io.Copy(hash, f) // hash write never errors
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if err = f.Close(); err != nil {
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return err
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}
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return nil
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})
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return hash.Sum(nil), err
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}
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