[优化] 改名

openflare_agent/internal/updater/restart_unix.go

@@ -0,0 +1,27 @@
+//go:build !windows
+
+package updater
+
+import (
+	"fmt"
+	"os"
+	"syscall"
+)
+
+func replaceAndRestart(execPath string, tmpPath string) error {
+	backupPath := execPath + ".bak"
+	os.Remove(backupPath)
+	if err := os.Rename(execPath, backupPath); err != nil {
+		os.Remove(tmpPath)
+		return fmt.Errorf("backup current binary: %w", err)
+	}
+	if err := os.Rename(tmpPath, execPath); err != nil {
+		os.Rename(backupPath, execPath)
+		return fmt.Errorf("replace binary: %w", err)
+	}
+	os.Remove(backupPath)
+	if err := syscall.Exec(execPath, os.Args, os.Environ()); err != nil {
+		return fmt.Errorf("exec restart: %w", err)
+	}
+	return fmt.Errorf("unreachable after exec")
+}