Overhaul install script

Signed-off-by: Severin Kaderli <severin@kaderli.dev>

.install/prerequisites.sh

@@ -0,0 +1,32 @@
+#!/usr/bin/env bash
+# 
+# SCRIPT NAME:
+# prerequisites.sh
+#
+# AUTHOR:
+# Severin Kaderli <severin@kaderli.dev>
+#
+# DESCRIPTION:
+# Installs the prerequisites for the installation script.
+
+output::section "Prerequisites"
+
+output::log "Installing requirements for install script"
+sudo pacman -S sudo ccache git base-devel --noconfirm --needed |& output::debug
+output::success "Requirements successfully installed"
+
+is_yay_installed=$(command -v yay)
+output::log "Installing yay"
+if [ -z "${is_yay_installed}" ]; then
+    TMP_DIR=$(mktemp -d)
+    git clone https://aur.archlinux.org/yay.git "${TMP_DIR}" |& output::debug
+
+    (
+        cd "${TMP_DIR}"|| exit
+        makepkg -si --noconfirm --skippgpcheck |& output::debug
+    )
+
+    output::success "yay installed"
+else
+    output::success "Yay is already installed"
+fi