#+TITLE: Dotfiles
#+AUTHOR: Christopher James Hayward
#+EMAIL: chris@chrishayward.xyz

#+PROPERTY: header-args:emacs-lisp :tangle init.el :comments org
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[[./docs/images/desktop-alt.png]]

Portable [[https://gnu.org/software/emacs][GNU/Emacs]][fn:1] dotfiles. Built for Life, Liberty, and the Open Road.

+ 100% Literate
+ 100% Immutable
+ 100% Reproducible

* Init

This project makes heavy use of modern features and libraries. Since [[https://orgmode.org/worg/org-contrib/babel/intro.html][Org-babel]][fn:2]'s used during the initialization, [[https://orgmode.org][Org-mode]][fn:3] must load prior to importing any custom modules. My solution includes the introduction of some early intitialization code written in [[https://gnu.org/software/emacs/manual/html_node/elisp/index.html][Emacs Lisp]][fn:4].

#+begin_src emacs-lisp
(load-file "~/.emacs.d/bin/options.el")
(load-file "~/.emacs.d/bin/cleanup.el")
(load-file "~/.emacs.d/bin/packages.el")
#+end_src

** Load host definition

Begin the process by loading any host specific option overrides. The host configuration tangles, and loads (if it exist) using the systems name. If a host definition doesn't exist the default values remain. 

#+begin_src emacs-lisp
(let ((host-file (concat dotfiles/home "/hosts/" system-name ".org")))
  (when (file-exists-p host-file)
    (org-babel-load-file host-file)))
#+end_src

** Load enabled modules

All of the modules in ~dotfiles/modules~ load after the host overrides. By default, all of the packages defined in ~dotfiles/modules-p~ load. Override this behaviour in a host configuration file.

#+begin_src emacs-lisp
(dolist (m dotfiles/modules)
  (let ((mod-file (concat dotfiles/home "/modules/" (symbol-name m) ".org")))
    (when (file-exists-p mod-file)
      (org-babel-load-file mod-file))))
#+end_src

* Hosts

Each host machines configuration loaded immediately after declaring the options, before applying any configuration. This allows system to system control while remaining immutable. Override any of the available options configurations in a host file. Here's some examples to get started:

+ [[file:hosts/acernitro.org][Acernitro]]
+ [[file:hosts/gamingpc.org][GamingPC]]
+ [[file:hosts/localhost.org][Termux]]
+ [[file:hosts/raspberry.org][Raspberry]]
+ [[file:hosts/virtualbox.org][VirtualBox]] 

* Modules

Breaking down the project into logical units or chapters to keep the code more maintainable and organized. This is also a fundamental requirement to achieve the goal of modularity. Here are all of the available modules, also listed in the variable ~dotfiles/modules-p~. 

+ [[file:modules/capture.org][Capture]]
+ [[file:modules/core.org][Core]] 
+ [[file:modules/dashboard.org][Dashboard]] 
+ [[file:modules/desktop.org][Desktop]] 
+ [[file:modules/development.org][Development]] 
+ [[file:modules/editor.org][Editor]] 
+ [[file:modules/email.org][Email]] 
+ [[file:modules/encryption.org][Encryption]] 
+ [[file:modules/interface.org][Interface]] 
+ [[file:modules/presentations.org][Presentations]] 
+ [[file:modules/projects.org][Projects]] 
+ [[file:modules/shell.org][Shell]] 
+ [[file:modules/terminal.org][Terminal]]
+ [[file:modules/website.org][Website]] 
+ [[file:modules/writing.org][Writing]] 

* Options

Here's a complete list of all of the options configurable for each host, and their default values. 

+ All variables prefixed with ~dotfiles/~
+ Initialized prior to loading of packages or hosts

| Name                       | Default             | Description                                             |
|----------------------------+---------------------+---------------------------------------------------------|
| dotfiles/home              | ~/.emacs.d          | Original value of `user-emacs-directory'.               |
| dotfiles/cache             | ~/.cache/emacs      | Redirection target of `user-emacs-directory'.           |
|----------------------------+---------------------+---------------------------------------------------------|
| dotfiles/browser           | $BROWSER            | Default system web browser.                             |
| dotfiles/language          | $LANG               | Default system dictionary language.                     |
|----------------------------+---------------------+---------------------------------------------------------|
| dotfiles/modules-p         | (...)               | All of the available modules.                           |
| dotfiles/modules           | dotfiles/modules-p  | ALl of the enabled modules.                             |
|----------------------------+---------------------+---------------------------------------------------------|
| dotfiles/font              | Fira Code           | Unified system font family.                             |
| dotfiles/font-size         | 96                  | Unified system font size.                               |
|----------------------------+---------------------+---------------------------------------------------------|
| dotfiles/idle              | 0.0                 | Delay time before offering suggestions and completions. |
|----------------------------+---------------------+---------------------------------------------------------|
| dotfiles/leader-key        | SPC                 | All powerful leader key.                                |
| dotfiles/leader-key-global | C-(dotfiles/leader) | Global prefix for the leader key.                       |
|----------------------------+---------------------+---------------------------------------------------------|
| dotfiles/projects          | ~/.local/source     | Location of source code projects.                       |
| dotfiles/passwords         | ~/.password-store   | Location of local password store.                       |
|----------------------------+---------------------+---------------------------------------------------------|
| dotfiles/public-key        | (...)               | GPG key to encrypt org files for.                       |

* Resources

[fn:1] https://gnu.org/software/emacs
[fn:2] https://orgmode.org/worg/org-contrib/babel/intro.html
[fn:3] https://orgmode.org
[fn:4] https://gnu.org/software/emacs/manual/html_node/elisp/index.html
[fn:5] https://en.wikipedia.org/wiki/Chicken_or_the_egg