✨ add gitea backup script

gitea-backup.sh

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+# Copyright 2021 the Bag of Scripts and Configurations authors. All rights reserved. NPLv5+ license.
+#!/bin/bash
+
+# https://www.davidpashley.com/articles/writing-robust-shell-scripts/
+set -e
+
+# https://stackoverflow.com/a/2173421
+trap "trap - SIGTERM && kill -- -$$" SIGINT SIGTERM EXIT
+
+STAMP=$(date --iso-8601)
+GITEA_DUMP1=gitea-workdir-$STAMP.tar.gz
+GITEA_DUMP2=gitea-dump-$STAMP.zip
+FOLDER=/tmp/gitea-backup
+
+mkdir -p $FOLDER
+
+# Do the standard backup
+sudo -u git gitea dump -f $FOLDER/$GITEA_DUMP2 -c /etc/gitea/app.ini &
+
+# Also save Gitea's data folder which is not included in the standard
+# backup command.
+sudo -u git tar -C / -czf $FOLDER/$GITEA_DUMP1 var/lib/gitea &
+
+wait
+
+sudo chown -v nilsnh:nilsnh -R $FOLDER
+
+echo Done with work