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GitHub-Pull-Request: https://github.com/syncthing/syncthing/pull/3535
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@ -198,6 +198,7 @@ func upgradeToURL(archiveName, binary string, url string) error {
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if err != nil {
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return err
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}
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defer os.Remove(fname)
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old := binary + ".old"
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os.Remove(old)
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@ -205,7 +206,11 @@ func upgradeToURL(archiveName, binary string, url string) error {
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if err != nil {
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return err
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}
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return os.Rename(fname, binary)
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if os.Rename(fname, binary); err != nil {
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os.Rename(old, binary)
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return err
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}
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return nil
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}
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func readRelease(archiveName, dir, url string) (string, error) {
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