Add YASnippets to Doom Emacs and systemd

I've also changed the target of zsh to its appropriate location according to the XDG Base Directory specs so that's neat.

README.adoc

@@ -245,8 +245,7 @@ Just run the following command `git clone https://github.com/hlissner/doom-emacs
 * Minium version (from `emacs --version`):
 ** `GNU Emacs 26.3`
 ** For Doom Emacs, it's not particularly important since it's in rolling release but for future references, it is from the `develop` branch at commit https://github.com/hlissner/doom-emacs/commit/efa599f076c3a140c6b4006c352fdba3361abebd[`efa599f076c3a140c6b4006c352fdba3361abebd`] accessed at 2020-04-24.
-* The Doom configs are just the default config so there's not much to go through here.
-I may also add snippet files in there.
+* The Doom configs are just the default config and some snippets (in `snippets/`) so there's not much to go through here.
 * Regarding theming Doom Emacs, I've found mainly two ways.
 ** First is simply using https://gitlab.com/jjzmajic/ewal[ewal] but the resulting colors are not pretty IMO and I haven't found a way to customize it aside from forking and modifying the package itself.
 ** Second is simply generating the Doom Emacs theme file myself;
@@ -398,6 +397,17 @@ I also recommend https://www.youtube.com/watch?v=GYW9i_u5PYs[Luke Smith's video]
 That's where I also heard of it.
 
 
+=== https://systemd.io/[systemd]
+
+A set of building blocks for system management of a Linux-based system.
+
+* Config located at link:systemd/[`sxiv/`] directory.
+* The usual target path is at `$HOME/.config/systemd`.
+* Minimum version (from `systemctl --version`):
+** `systemd 245 (245.5-2-arch)`
+* Contains simple services and timers (as replacement for cron) such as backups and package list updates.
+
+
 === https://www.x.org/wiki/[Xorg]
 
 A display server implementing X window system.
@@ -417,7 +427,8 @@ A Unix shell and an alternative to the Bash.
 Mostly chosen due to its wide options for customization compared to GNU Bash.
 
 * Config found at link:zsh/[`zsh/`] directory.
-* The usual target path for a user is at `$HOME/`.
+* The usual target path for a user is at `$HOME/.config/zsh`.
+You do have to set `ZDOTDIR=$XDG_CONFIG_HOME/zsh` at `/etc/zsh/zshenv` (requires root privilege) though.
 * Minimum version (from `zsh --version`):
 ** `zsh 5.7.1 (x86_64-pc-linux-gnu)`
 * Contains `.zprofile` and `.zshrc`.
@@ -466,6 +477,7 @@ If you want to look for some alternatives or just feeling adventurous yourself,
 
 * https://github.com/sharkdp/bat[bat] - Basically `cat(1)` with wings.
 * https://github.com/jarun/Buku[Buku] - A developer-oriented (i.e., easy to integrate with your own programs) browser-independent bookmark manager for the command line.
+* https://github.com/cookiecutter/cookiecutter[Cookiecutter] - A project template generator for your... projects. :)
 * https://github.com/ogham/exa[exa] - A user-friendly replacement for `ls(1)`.
 * https://github.com/sharkdp/fd[fd] - A user-friendly alternative to `find(1)` from https://www.gnu.org/software/findutils/[GNU `findutils`].
 * https://feh.finalrewind.org/[feh] - A minimal image viewer.

emacs/config.el

@@ -20,7 +20,6 @@
 ;; They all accept either a font-spec, font string ("Input Mono-12"), or xlfd
 ;; font string. You generally only need these two:
 (setq doom-font (font-spec :family "Iosevka" :size 16)
-      doom-variable-pitch-font (font-spec :family "Source Serif Pro")
       doom-serif-font (font-spec :family "Source Serif Pro"))
 
 ;; There are two ways to load a theme. Both assume the theme is installed and
@@ -30,14 +29,13 @@
 
 ;; If you use `org' and don't want your org files in the default location below,
 ;; change `org-directory'. It must be set before org loads!
-(setq org-directory "~/org/")
+(setq org-directory "~/writings/orgnotes")
 
 ;; This determines the style of line numbers in effect. If set to `nil', line
 ;; numbers are disabled. For relative line numbers, set this to `relative'.
 (setq global-display-line-numbers-mode t)
 (setq display-line-numbers-type 'relative)
 
-
 ;; Here are some additional functions/macros that could help you configure Doom:
 ;;
 ;; - `load!' for loading external *.el files relative to this one
@@ -55,12 +53,21 @@
 ;; You can also try 'gd' (or 'C-c g d') to jump to their definition and see how
 ;; they are implemented.
 
+;; Search the project path with Projectile.
+(setq projectile-project-search-path '("~/projects/software/" "~/writings/"))
 
 
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 ; CUSTOM PACKAGES CONFIGURATIONS ;
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 
+; Set the TeX engine to LuaTeX.
+(after! tex
+  (TeX-engine-set "luatex")
+  (add-to-list 'safe-local-variable-values
+               '(TeX-command-extra-options . "-shell-escape"))
+)
+
 ;;(use-package! ewal
 ;;    :init (setq ewal-json-file "~/.cache/wal/colors.json"
 ;;                ewal-use-built-in-always-p nil

emacs/init.el

@@ -1,4 +1,4 @@
-;;; init.el -*- lexical-binding: t; -*-
+;;; init.el -*
 
 ;; This file controls what Doom modules are enabled and what order they load in.
 ;; Remember to run 'doom sync' after modifying it!

emacs/snippets/fundamental-mode/box

@@ -0,0 +1,8 @@
+# -*- mode: snippet -*-
+# name: Create a box
+# key: box
+# expand-env: ((yas-indent-line 'fixed) (yas-wrap-around-region 'nil))
+# --
+┌${1:$(make-string (+ 2 (string-width yas-text)) ?\-)}┐
+| $1 |
+└${1:$(make-string (+ 2 (string-width yas-text)) ?\-)}┘

emacs/snippets/fundamental-mode/eg

@@ -0,0 +1,6 @@
+# -*- mode: snippet -*-
+# name: Shorthand for e.g.
+# key: eg
+# condition: t
+# --
+(e.g., $1)

emacs/snippets/fundamental-mode/em

@@ -0,0 +1,5 @@
+# -*- mode: snippet -*-
+# name: Em dash
+# key: em
+# --
+—

emacs/snippets/fundamental-mode/ie

@@ -0,0 +1,5 @@
+# -*- mode: snippet -*-
+# name: Shorthand for i.e. in parenthesis
+# key: ie
+# --
+(i.e., $1)

emacs/snippets/fundamental-mode/sign

@@ -0,0 +1,9 @@
+# -*- mode: snippet -*-
+# contributor: Gabriel Arazas
+# name: The ending signature useful for email.
+# key: sign
+# uuid: sign
+# --
+${1:Sincerely,}
+${2:`user-full-name`}
+

emacs/snippets/latex-mode/agraph

@@ -0,0 +1,25 @@
+# -*- mode: snippet -*-
+# name: Graph without considering integers
+# key: agraph                                                                                                              
+# --
+\begin{figure}[${1:ht}]
+  \centering
+  \begin{tikzpicture}
+    \begin{axis}[
+    xlabel=${2:$x$},
+    ylabel=${3:$y$},
+    axis lines = middle,
+    grid=major,
+    axis equal=false,
+    tick style={very thick},
+    major tick style=thick,
+    minor tick num=2,
+    domain=${4:-10}:${5:10},$6
+    ]
+      \addplot[samples=${7:$$(+ (string-to-number (or (yas-field-value 5) "0")) (string-to-number (or (yas-field-value 4) "0")))}, $8]{${9:x}\};
+    \end{axis}
+  \end{tikzpicture}
+  \caption{$10}
+  \label{fig!${11:$10}}
+\end{figure}
+`(yas-field-value 4)`

emacs/snippets/latex-mode/bf

@@ -0,0 +1,5 @@
+# -*- mode: snippet -*-
+# name: Boldface text
+# key: bf
+# --
+\textbf{$1}

emacs/snippets/latex-mode/equation

@@ -0,0 +1,8 @@
+# -*- mode: snippet -*-
+# name: \equation
+# key: eq
+# --
+\begin{equation}
+  \label{math!$1}
+  $2
+\end{equation}

emacs/snippets/latex-mode/it

@@ -0,0 +1,5 @@
+# -*- mode: snippet -*-
+# name: Italic text
+# key: it
+# --
+\textit{$1}

emacs/snippets/latex-mode/li

@@ -0,0 +1,5 @@
+# -*- mode: snippet -*-
+# name: List item for lists
+# key: li
+# --
+\item{$1}

emacs/snippets/latex-mode/mathblock

@@ -0,0 +1,7 @@
+# -*- mode: snippet -*-
+# name: LaTeX math block
+# key: mb                                                                                                               
+# --
+\begin{equation*}
+$1
+\end{equation*}

emacs/snippets/latex-mode/mathinline

@@ -0,0 +1,5 @@
+# -*- mode: snippet -*-
+# name: Math inline block
+# key: mi
+# --
+$$1$

emacs/snippets/latex-mode/ol

@@ -0,0 +1,7 @@
+# -*- mode: snippet -*-
+# name: Ordered list
+# key: ol    
+# --
+\begin{enumerate}
+  $1
+\end{enumerate}

emacs/snippets/latex-mode/section

@@ -0,0 +1,7 @@
+# -*- mode: snippet -*-
+# name: \section
+# key: sec
+# uuid: sec
+# --
+\section{$1}
+\label{sect!$1}

emacs/snippets/latex-mode/subsection

@@ -0,0 +1,7 @@
+# -*- mode: snippet -*-
+# name: \subsection
+# key: subsec
+# uuid: subsec
+# --
+\subsection{$1}
+\label{subsect!$1}

emacs/snippets/latex-mode/tt

@@ -0,0 +1,5 @@
+# -*- mode: snippet -*-
+# name: Teletype text
+# key: tt
+# --
+\texttt{$1}

emacs/snippets/latex-mode/ul

@@ -0,0 +1,7 @@
+# -*- mode: snippet -*-
+# name: Unordered list
+# key: ul
+# --
+\begin{itemize}
+  $1
+\end{itemize}

emacs/snippets/org-mode/link

@@ -0,0 +1,5 @@
+# -*- mode: snippet -*-
+# name: Org-Mode link
+# key: link
+# --
+[[${1:URL}][${2:Description}]]

locations.json

@@ -11,7 +11,8 @@
     "rofi": "$HOME/.config/rofi/",
     "sxiv": "$HOME/.config/sxiv",
     "sxhkd": "$HOME/.config/sxhkd/",
+    "systemd": "$HOME/.config/systemd",
     "wal": "$HOME/.config/wal",
     "xorg": "$HOME",
-    "zsh": "$HOME"
+    "zsh": "$HOME/.config/zsh"
 }

nvim/own-snippets/asciidoc.snippets

@@ -191,6 +191,7 @@ $0
 endsnippet
 
 snippet append "Appendix block" bi
+`!p snip.rv = "\n" * 4`
 [appendix]
 == ${1:Additional readings}
 $0

nvim/own-snippets/tex.snippets

@@ -45,7 +45,7 @@ def add_variable_numbers(*inputs, **kwargs):
                 total += i
         except ValueError:
             continue
-    
+
     return total
 
 endglobal
@@ -142,7 +142,7 @@ snippet subsec "Subsection tag" bi
 \subsection{$1}
 \label{subsect!$1}
 $0
-endsnippet  
+endsnippet
 
 # Common commands
 snippet pack "Use package command" bis
@@ -270,7 +270,7 @@ $0
 endsnippet
 
 snippet alignli "Quick align equation with label" biw
-${1:<LHS>} &= ${2:<RHS>} \label{math!$3} \\ $4 
+${1:<LHS>} &= ${2:<RHS>} \label{math!$3} \\ $4
 endsnippet
 
 snippet gathered "Gathered environment which lets you gather a bunch of equations and assign them under one equation number" bi
@@ -378,7 +378,7 @@ snippet plot3 "Add a 3D plot" i
 $0
 endsnippet
 
-# Common mathematical functions and symbols 
+# Common mathematical functions and symbols
 # Also take note that most expressions are prepended with 'M' to mean mathematical usage
 snippet === "Equivalent to" iw
 \equiv
@@ -955,7 +955,7 @@ snippet li "List item for the OL/UL lists" iw
 \item{$1}
 $0
 endsnippet
-    
+
 context "not math()"
 snippet a "URL links (with description)" iw
 \href{${1:<url>}}{${2:<description>}} $0
@@ -1127,7 +1127,7 @@ snippet GOo "Lowercase Greek letter omega" w
 endsnippet
 
 # Custom commands and environment (for my class notes)
-# Do not use this if you don't have the following packages and 
+# Do not use this if you don't have the following packages and
 # does not have my custom document style file:
 # * tcolorbox
 # * xcolor

systemd/user/local-backup.service

@@ -0,0 +1,9 @@
+[Unit]
+Description=Backup with Unison
+
+[Service]
+Type=oneshot
+ExecStart=/usr/bin/unison main -fat -ignorearchives -batch -root "/run/media/%u/Seagate Backup Plus Drive" -links true
+
+[Install]
+WantedBy=graphical.target

systemd/user/local-backup.timer

@@ -0,0 +1,9 @@
+[Unit]
+Description=Backup with Unison
+
+[Timer]
+OnCalendar=*-*-* 0/4:00:00
+Persistent=true
+
+[Install]
+WantedBy=default.target

systemd/user/pkglist-commit.service

@@ -0,0 +1,9 @@
+[Unit]
+Description=Commit the package list into the dotfiles
+
+[Service]
+Type=oneshot
+ExecStart=%h/.local/bin/commit-pkglist
+
+[Install]
+WantedBy=default.target

systemd/user/pkglist-commit.timer

@@ -0,0 +1,9 @@
+[Unit]
+Description=Commit the package list into the dotfiles
+
+[Timer]
+OnCalendar=monthly
+Persistent=true
+
+[Install]
+WantedBy=default.target

systemd/user/pkglist-update.service

@@ -0,0 +1,10 @@
+[Unit]
+Description=Create a package list from the Arch Linux repos
+
+[Service]
+Type=oneshot
+ExecStart=/usr/bin/pacman -Qqem > $HOME/dotfiles/aur-packages.txt
+ExecStart=/usr/bin/pacman -Qqen > $HOME/dotfiles/packages.txt
+
+[Install]
+WantedBy=default.target

systemd/user/pkglist-update.timer

@@ -0,0 +1,9 @@
+[Unit]
+Description=Create a package list from the Arch Linux repos
+
+[Timer]
+OnCalendar=*-*-* 1/6:00:00
+Persistent=true
+
+[Install]
+WantedBy=default.target