talos

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// This Source Code Form is subject to the terms of the Mozilla Public
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// License, v. 2.0. If a copy of the MPL was not distributed with this
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// file, You can obtain one at http://mozilla.org/MPL/2.0/.
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package utils
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import (
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	"io/fs"
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	"os"
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	"path/filepath"
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	"time"
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)
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// TouchFiles updates mtime for all the files under root if SOURCE_DATE_EPOCH is set.
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func TouchFiles(printf func(string, ...any), root string) error {
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	epochInt, ok, err := SourceDateEpoch()
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	if err != nil {
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		return err
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	}
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	if !ok {
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		return nil
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	}
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	timestamp := time.Unix(epochInt, 0)
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	printf("changing timestamps under %q to %s", root, timestamp)
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	return filepath.WalkDir(root, 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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		return os.Chtimes(path, timestamp, timestamp)
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	})
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}
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