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* Write new file payload to a temp file before touching the original binary. Minimizes the possibility of failing mid-write and corrupting the binary. * On Windows, move the original binary out to a temp file rather than removing it as the running binary is locked. Fixes issue #2248.
24 lines
557 B
Go
24 lines
557 B
Go
//go:build windows
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// +build windows
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package selfupdate
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import (
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"fmt"
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"os"
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"path/filepath"
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)
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// Rename (rather than remove) the running version. The running binary will be locked
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// on Windows and cannot be removed while still executing.
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func removeResticBinary(dir, target string) error {
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backup := filepath.Join(dir, filepath.Base(target)+".bak")
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if _, err := os.Stat(backup); err == nil {
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_ = os.Remove(backup)
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}
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if err := os.Rename(target, backup); err != nil {
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return fmt.Errorf("unable to rename target file: %v", err)
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}
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return nil
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}
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