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ryan
27 lines
655 B
Go
27 lines
655 B
Go
//go:build !windows
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package updater
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import (
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"fmt"
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"os"
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"syscall"
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)
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func replaceAndRestart(execPath string, tmpPath string) error {
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backupPath := execPath + ".bak"
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os.Remove(backupPath)
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if err := os.Rename(execPath, backupPath); err != nil {
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os.Remove(tmpPath)
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return fmt.Errorf("backup current binary: %w", err)
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}
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if err := os.Rename(tmpPath, execPath); err != nil {
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os.Rename(backupPath, execPath)
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return fmt.Errorf("replace binary: %w", err)
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}
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os.Remove(backupPath)
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if err := syscall.Exec(execPath, os.Args, os.Environ()); err != nil {
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return fmt.Errorf("exec restart: %w", err)
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}
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return fmt.Errorf("unreachable after exec")
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} |