Add zsh installation script

Author: AgenttiX

zsh/.zshenv

@@ -1,3 +1,4 @@
+# Symlinking the zsh config folder is not needed thanks to this.
 ZDOTDIR="${HOME}/Git/linux-scripts/zsh"
 
 if [ -f "${HOME}/.cargo/env" ]; then

zsh/README.md

@@ -1,30 +1,23 @@
 ### Installing zsh
 Zsh is an awesome shell with the extensive plugin collection
 [Oh My Zsh](https://ohmyz.sh/).
-You can install and configure it by cd'ing to the root
-of this repository and executing the following commands.
+You can install it using the `install_zsh.sh` script.
 
-``` bash
-sudo apt-get update
-sudo apt-get install git zsh
-ln -s "<REPOSITORY_FOLDER>/zsh/.zshenv" "${HOME}/.zshenv"
-```
 
 ### Additional plugins
 [zsh-autocomplete](https://github.com/marlonrichert/zsh-autocomplete),
 [zsh-autosuggestions](https://github.com/zsh-users/zsh-autosuggestions)
 and
 [zsh-syntax-highlighting](https://github.com/zsh-users/zsh-syntax-highlighting):
 
+
 ### Powerlevel10k theme
 Installation of the [Powerlevel10k](https://github.com/romkatv/powerlevel10k) theme:
 first download all the
 [MesloLGS theme files](https://github.com/romkatv/powerlevel10k#meslo-nerd-font-patched-for-powerlevel10k)
 and set it as your default terminal font.
-Then run the following command.
-``` bash
-ln -s "<REPOSITORY_FOLDER>/zsh/.p10k.zsh" "${HOME}/.p10k.zsh"
-```
+Then run the `install_zsh.sh` script if you haven't yet run iiiit.
+
 
 ### Stderred
 With [stderred](https://github.com/sickill/stderred) you can get stderr displayed in red.

zsh/install_zsh.sh

@@ -0,0 +1,20 @@
+#!/usr/bin/env bash
+set -eu
+
+if [ "${EUID}" -eq 0 ]; then
+   echo "This script should not be run as root."
+   exit 1
+fi
+
+SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )"
+
+echo "Installing zsh and plugin dependencies."
+sudo apt-get update
+sudo apt-get install autojump build-essential cmake git ruby-dev zsh
+gem install colorls
+
+echo "Creating symlinks."
+ln -s "${SCRIPT_DIR}/.zshenv" "${HOME}/.zshenv"
+ln -s "${SCRIPT_DIR}/.p10k.zsh" "${HOME}/.p10k.zsh"
+
+echo "zsh installed."