Add shared bash functions

.gitignore

@@ -8,8 +8,5 @@ __pycache__
 # Database
 db/
 
-# Server setup documentation
-server_setup.adoc
-
 # Development
 .flaskenv

scripts/shared.sh

@@ -0,0 +1,35 @@
+#!/bin/bash
+
+box() {
+	MESSAGE="$2$1"
+	SEPERATOR="==${MESSAGE//?/=}=="
+
+	echo
+	echo "$SEPERATOR"
+	echo "| $MESSAGE |"
+	echo "$SEPERATOR"
+	echo
+}
+
+step() {
+	CONTINUE_MESSAGE="-> Press ENTER to continue or Ctrl+C to interrupt the script <-"
+	UPPER_SEPERATOR="${CONTINUE_MESSAGE//?/_}"
+
+	echo
+	echo "$UPPER_SEPERATOR"
+
+	box "$1" "Next step: "
+
+	echo "$CONTINUE_MESSAGE"
+	read -s
+	echo
+}
+
+install_latest_pipx() {
+	pip install --user --upgrade pipx
+}
+
+poetry_install_latest() {
+	cd "$SDIR/.."
+	poetry install
+}