improve scripts

move logic to separated shell scripts and also create shell script for
repository setup

Also force create directory according to systemd recommendations

.github/workflows/tests.sh

@@ -0,0 +1,16 @@
+#!/bin/bash
+# Install dependencies and run test in container
+
+set -ex
+
+# install dependencies
+pacman --noconfirm -Syu base-devel python-pip
+
+# install python packages
+pip install -e .[web]
+pip install -e .[check]
+pip install -e .[s3]
+pip install -e .[test]
+
+# run test and check targets
+make check tests