50 lines
1.4 KiB
Go
50 lines
1.4 KiB
Go
// Copyright (c) 2026 Probo Inc <hello@probo.com>.
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//
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// Permission to use, copy, modify, and/or distribute this software for any
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// purpose with or without fee is hereby granted, provided that the above
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// copyright notice and this permission notice appear in all copies.
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//
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// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
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// REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
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// AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
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// INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
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// LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
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// OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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// PERFORMANCE OF THIS SOFTWARE.
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//go:build windows
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package deviceagent
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import (
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"errors"
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"fmt"
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"os"
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)
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func replaceRegularFile(path string, data []byte, perm os.FileMode) error {
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tmp := path + ".tmp"
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if err := os.WriteFile(tmp, data, perm); err != nil {
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return fmt.Errorf("cannot write temp file: %w", err)
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}
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old := path + ".old"
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_ = os.Remove(old)
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if err := os.Rename(path, old); err != nil && !errors.Is(err, os.ErrNotExist) {
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_ = os.Remove(tmp)
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return fmt.Errorf("cannot move existing file aside: %w", err)
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}
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if err := os.Rename(tmp, path); err != nil {
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_ = os.Rename(old, path)
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_ = os.Remove(tmp)
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return fmt.Errorf("cannot replace file: %w", err)
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}
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_ = os.Remove(old)
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return nil
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}
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