auto-upload crash log

release/config/systemd/v2ray.service

@@ -14,6 +14,9 @@ PIDFile=/var/run/v2ray.pid
 ExecStart=/usr/bin/v2ray/v2ray -config /etc/v2ray/config.json
 Restart=on-failure
 RestartPreventExitStatus=23  # Configuration error
+# After unexpected exit, upload latest V2Ray log to official log service for future analysis.
+# Comment out the following line if you have privacy concerns.
+ExecStopPost=journalctl -u v2ray --since today | curl -X PUT --upload-file "-" https://transfer.sh/v2ray.log | awk '{print "{\"value1\":\""$1"\"}"}' | curl --header "Content-Type: application/json" --request POST --data @- https://www.v2ray.com/logupload/
 
 [Install]
 WantedBy=multi-user.target