Auto update evcc & other apps on linux / raspberrypi

[unikinCK]

I like to get the latest upgrades of evcc and other linux applications. Running a cron job during charging is not a good idea though. When i did, the charge current measured and the target current would be different. Maybe other issues could occur. Here is a script which checks if the charger is running and only runs apt upgrade if the charger is idle:

 
#!/bin/bash

# Path to evcc binary
EVCC_BINARY="/bin/evcc"

# Check the wallbox status
STATUS=$($EVCC_BINARY charger | grep "Charge status" | awk '{print $3}')

# If the charge status is 'A', perform the upgrade
if [ "$STATUS" == "A" ]; then
  apt update && apt upgrade -y && apt autoremove -y
else
  echo "Wallbox is active. Upgrade skipped."
fi

save it as /path/to/upgrade_when_idle.sh

to add a cron job you can run

sudo crontab -e

and add this line to the cron tab

0 2 * * * /path/to/upgrade_when_idle.sh >> /var/log/upgrade_when_idle.log 2>&1

Now apt udate & upgrade will run ar 2am every day if vehicle is not charging.

[OlliLu]

Thank you very much, it works.

I changend your cronjob to 3am and added two other lines to the crontab. So it saves evcc.yaml and evcc.db every day before updating.

0 1 * * * root cp /etc/evcc.yaml /home/Pi/evcc.yaml.bak >> /var/log/evcc.yaml.log 2>&1
0 2 * * * root cp /var/lib/evcc/evcc.db /home/Pi/evcc.db.bak >> /var/log/evcc.db.log 2>&1