config.phundrak.com/spacemacs.org
Lucien Cartier-Tilet ad3e0d7ced
Most of the user configuration of Spacemacs now in Org file
Most of the content of `dotspacemacs/user-init' and
`dotspacemacs/user-config' is now loaded from `~/spacemacs.org'.
Literary programming ftw.
2020-01-14 21:10:21 +01:00

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Phundraks Spacemacs User Configuration

User Initialization

While Emacs and especially Spacemacs loads, I want it to initialize some elements and load some packages. First of all, I want it to load my private Emacs config file:

(load "~/.emacs.d/private/private_emacs.el")

Then, I want a couple of requires:

  (require 'org-id)
  (require 'package)
  (require 'ox-latex)
  (require 'ox-publish)

I also want to load whats in icons-in-terminal so I can use them in various packages in Emacs:

  (add-to-list 'load-path "~/.local/share/icons-in-terminal/")

I would also like to enable the setup of flycheck for Rust when Flycheck is loaded:

  (add-hook 'flycheck-mode-hook #'flycheck-rust-setup)

By default, Flyspell should be disabled and only enabled manually.

  (flyspell-mode 0)

Finally, here is a quick workaround for Tramp, sometimes it cannot connect to my hosts if I dont have this code snippet.

  (setq tramp-ssh-controlmaster-options
        "-o ControlMaster=auto -o ControlPath='tramp.%%C' -o ControlPersist=no")

User Configuration

File extensions

Sometimes, Emacs doesnt recognize or misrecognizes some extensions, resulting in a wrong mode set for said file. Lets fix that by associating the extension with the desired mode:

  (dolist (e '(("xml" . web-mode)
               ("xinp" . web-mode)
               ("aiml" . web-mode)
               ("C" . c++-mode)
               ("dconf" . conf-mode)
               ("yy" . bison-mode)
               ("ll" . flex-mode)
               ("s" . asm-mode)
               ("pl" . prolog-mode)
               ("l" . scheme-mode)
               ("vs" . glsl-mode)
               ("fs" . glsl-mode)))
    (push (cons (concat "\\."
                        (car e)
                        "\\'") (cdr e))
          auto-mode-alist))

We also have a couple of extensions which should all be in conf-unix-mode, lets indicate that to Emacs:

  (dolist (e '("service" "timer" "target" "mount" "automount"
               "slice" "socket" "path" "netdev" "network"
               "link"))
    (push (cons (concat "\\." e "\\'") 'conf-unix-mode)
          auto-mode-alist))

Custom functions

In this section, I will put my various custom functions that do not fit in other sections and which are more oriented towards general usage throughout Emacs and in Elisp code.

Almost all of my code snippets will be prefixed by either my name or the name of the package or layer they are part of, unless they are an explicit overwrite of a function that already exists.

phundrak/fill-paragraph

This function was created in order to bind to another keyboard shortcut the already existing C-u M-q which I cannot type with evil-mode unless Im in insert mode.

(defun phundrak/fill-paragraph ()
  (interactive)
  (let* ((current-prefix-arg 4))
    (call-interactively 'fill-paragraph)))

terminal-here-default-terminal-command

This function is actually an overwrite of the default one which apparently does not work on my machine. This function is called by terminal-here-launch and spawns an external terminal emulator in the directory emacs was in when the terminal was invoked. I simply point out to this function the name of my terminal emulator. Here is the code:

  (defun terminal-here-default-terminal-command (_dir)
    '("st"))

Miscellaneous

I have a lot of variables that need to be set but dont fall in any other category, so Ill collect them here.

I have this regexp for detecting paragraphs.

(setq paragraph-start "\f\\|[ \t]*$\\|[ \t]*[-+*] ")

Evil

As a user of Evil, Im sometimes pissed when I accidentally press C-u and it gets me to the top of the document. So, lets disable it:

  (setq evil-want-C-u-scroll nil)

Default modes

Some buffers sometimes wont have a default mode at all, such as the *scratch* buffer. In any vanilla configuration, they will then default to text-mode. I personally prefer org-mode to be my default mode, so lets set it so!

  (setq edit-server-default-major-mode 'org-mode)

I also want to have by default some aggressive indentation in my source files. Lets enable that:

  (global-aggressive-indent-mode 1)

However, I do not wish to see it activated for Dart mode, so lets exclude it:

  (add-to-list 'aggressive-indent-excluded-modes 'dart-mode)

Hooks

I also have some hooks I use for enabling some major and minor modes. The first one here allows the execution of the deletion of trailing space each time I save a file.

  (add-hook 'before-save-hook 'delete-trailing-whitespace)

I also want to always be in visual-line-mode so Emacs soft-wraps lines that are too long for the buffer they are displayed in.

  (add-hook 'prog-mode-hook 'visual-line-mode)

I also want for some non-programming modes to enable a hard-limit in terms of how many characters can fit on one line. The modes that benefit from that are message-mode, org-mode, text-mode and markdown-mode.

  (mapc (lambda (x)
       (add-hook x 'auto-fill-mode)
       (add-hook x 'visual-line-mode))
     '(message-mode-hook
       org-mode-hook
       text-mode-hook
       markdown-mode-hook))

Pinentry

Pinentry should use the loopback mode when communicating with GnuPG. Lets set it so:

(setq epa-pinentry-mode 'loopback)

Prettified symbols

Just because it is pleasing to the eye, some symbols in source code get prettified into simpler symbols. Here is the list of symbols that are to be prettified. You can see in the corresponding comment what symbol will be displayed.

  (setq prettify-symbols-alist '(("lambda" . 955) ; λ
                                 ("->" . 8594)    ; →
                                 ("<->" . 8596)   ; ↔
                                 ("<-" . 8592)    ; ←
                                 ("=>" . 8658)    ; ⇒
                                 ("<=>" . 8860)   ; ⇔
                                 ("<=" . 8656)    ; ⇐
                                 ("mapc" . 8614)  ; ↦
                                 ("map" . 8614)   ; ↦
                                 (">>" . 187)     ; »
                                 ("<<" . 171)     ; «
                                 ))

Twittering mode

For twittering-mode, a Twitter major mode for Emacs, I want to encrypt my data using a master password, which I do thanks to this option:

  (setq twittering-use-master-password t)

Wttr.in cities

Thanks to the wttrin package, I can get the weather forecast in Emacs for a couple of cities. I just need to specify them to Emacs like so:

  (setq wttrin-default-cities '("Aubervilliers" "Paris" "Lyon" "Nonières"
                                "Saint Agrève"))

Shortcuts

As you will see, I defined A LOT of custom shortcuts. First, I have some shortcuts defined the vanilla Emacs way:

  (global-set-key (kbd "C-x C-b") 'ibuffer)
  (global-set-key (kbd "S-C-<left>") 'shrink-window-horizontally)
  (global-set-key (kbd "S-C-<right>") 'enlarge-window-horizontally)
  (global-set-key (kbd "S-C-<down>") 'shrink-window)
  (global-set-key (kbd "S-C-<up>") 'enlarge-window)
  (global-set-key (kbd "C-x <up>") 'windmove-up)
  (global-set-key (kbd "C-x <down>") 'windmove-down)
  (global-set-key (kbd "C-x <right>") 'windmove-right)
  (global-set-key (kbd "C-x <left>") 'windmove-left)
  (global-set-key (kbd "C-<prior>") 'previous-buffer)
  (global-set-key (kbd "C-<next>") 'next-buffer)
  (global-set-key (kbd "M-»") 'end-of-buffer)
  (global-set-key (kbd "M-«") 'beginning-of-buffer)
  (global-set-key (kbd "<XF86HomePage>") 'spacemacs/home)
  (global-set-key (kbd "<XF86Open>") 'helm-find-files)
  (global-set-key (kbd "<XF86Close>") 'kill-this-buffer)
  (global-set-key (kbd "<XF86Save>") 'save-buffer)
  (global-set-key (kbd "<C-tab>") 'evil-close-fold)
  (global-set-key (kbd "<S-C-tab>") 'evil-close-folds)
  (global-set-key (kbd "<C-iso-lefttab>") 'evil-open-fold)

These shortcuts can be called as-is, that is, typing C-x C-b will call ibuffer.

Now, I also have some Spacemacs shortcuts, defined in a way they can be used seamlessly with Evil. First, lets declare some prefixes in order to avoid seeing lots of custom in helm:

  (spacemacs/declare-prefix "o" "custom")
  (spacemacs/declare-prefix "oa" "applications")
  (spacemacs/declare-prefix "oB" "byte-compile .emacs.d")
  (spacemacs/declare-prefix "oc" "comments")
  (spacemacs/declare-prefix "of" "files")
  (spacemacs/declare-prefix "ofb" ".local/bin sources")
  (spacemacs/declare-prefix "ofe" "spacemacs.org")
  (spacemacs/declare-prefix "off" "fish config")
  (spacemacs/declare-prefix "ofi" "i3 config")
  (spacemacs/declare-prefix "ofp" "polybar config")
  (spacemacs/declare-prefix "ofr" "yadm README")
  (spacemacs/declare-prefix "oi" "insert")
  (spacemacs/declare-prefix "oii" "invisible space")
  (spacemacs/declare-prefix "om" "multiple-cursors")
  (spacemacs/declare-prefix "oo" "org-mode")
  (spacemacs/declare-prefix "ooi" "custom IDs")
  (spacemacs/declare-prefix "oos" "structure")
  (spacemacs/declare-prefix "oot" "tables")
  (spacemacs/declare-prefix "oott" "toggle width")
  (spacemacs/declare-prefix "oote" "expand")
  (spacemacs/declare-prefix "oots" "shrink")
  (spacemacs/declare-prefix "or" "external command")
  (spacemacs/declare-prefix "ot" "toggle")
  (spacemacs/declare-prefix "ow" "writeroom")
  (spacemacs/declare-prefix "ox" "text")

Now, onto the shortcuts:

  (spacemacs/set-leader-keys
    "oac"  'calc
    "oaC"  'calendar
    "oae"  'eww
    "oaw"  'wttrin
    "oB"   (lambda () (byte-recompile-directory (expand-file-name "~/.emacs.d") 0))
    "ob"   'fancy-battery-mode
    "occ"  'outorg-copy-edits-and-exit
    "oce"  'outorg-edit-as-org
    "oco"  'outline-minor-mode
    "od"   'elcord-mode
    "oF"   'flycheck-mode
    "ofb"  (lambda () (interactive) (find-file "~/.local/bin/README.org"))
    "ofe"  (lambda () (interactive) (find-file "~/spacemacs.org"))
    "off"  (lambda () (interactive) (find-file "~/.config/fish/README.org"))
    "ofi"  (lambda () (interactive) (find-file "~/.config/i3/README.org"))
    "ofp"  (lambda () (interactive) (find-file "~/.config/polybar/config##yadm.j2"))
    "ofr"  (lambda () (interactive) (find-file "~/README.org"))
    "ofo"  'find-file-at-point
    "oii"  (lambda () (interactive) (insert ""))
    "ome"  'mc/edit-lines
    "omn"  'mc/mark-next-like-this
    "omp"  'mc/mark-previous-like-this
    "oma"  'mc/mark-all-like-this
    "ooi"  'eos/org-add-ids-to-headlines-in-file
    "oos"  'org-insert-structure-template
    "ooT"  'org-sidebar-tree
    "oott" 'org-table-toggle-column-width
    "oote" 'org-table-expand
    "oots" 'org-table-shrink
    "oow"  'org-pomodoro
    "owi"  'writeroom-increase-width
    "or"   'helm-run-external-command
    "os"   'prettify-symbols-mode
    "oti"  'toggle-input-method
    "otI"  'set-input-method
    "owd"  'writeroom-decrease-width
    "oxf"  'phundrak/fill-paragraph)

You can notice they all begin with o. This is actually a userspace, and I know these shortcuts wont conflict with any other packages. These shortcuts, like a lot of Spacemacs shortcuts, can be called with the use of the leader key, in my case SPC. So, if I want to call the calculator, I will type SPC o a c.

C/C++

As the C/C++ syntax is checked by flycheck, lets make sure we are using the latest standard available, that is C++17 and C17, from Clang.

  (add-hook 'c-mode-hook
            (lambda ()
              (setq flycheck-clang-language-standard "c17")))
  (add-hook 'c++-mode-hook
            (lambda ()
              (setq flycheck-clang-language-standard "c++17")))

ASM configuration

The first thing I will set with my ASM configuration is where the reference PDF is located.

  (setq x86-lookup-pdf "~/Documents/code/asm/Intelx86/325383-sdm-vol-2abcd.pdf")

I will also modify what the comment character is, from a ; to a #:

  (setq asm-comment-char ?\#)

Dart configuration

For Dart, I mainly declared some custom shortcuts bound to dart-mode related to flutter, so nothing too exciting here. Some prefix are declared in order to avoid the shortcuts in helm to show up as just custom.

  (spacemacs/declare-prefix-for-mode 'dart-mode "o" "user-defined")
  (spacemacs/declare-prefix-for-mode 'dart-mode "of" "flutter")
  (spacemacs/declare-prefix-for-mode 'dart-mode "ofr" "flutter-run")

Now, for the shortcuts themselves:

  (spacemacs/set-leader-keys-for-major-mode 'dart-mode
    "ofH" 'flutter-hot-restart
    "ofh" 'flutter-hot-reload
    "ofq" 'flutter-quit
    "ofr" (lambda () (interactive) (flutter-run "-v"))
    "ofs" 'flutter-screenshot)

Emacs Lisp

Here will be stored my configuration directly related to Emacs Lisp, including some functions or default modes.

Enable eldoc-mode by default

By default, if some Elisp code is opened, I want to enable eldoc-mode so I can easily get some documentation on the symbols in the source code. This is done via the use of hooks.

  (add-hook 'prog-mode-hook 'eldoc-mode)

phundrak/write-to-buffer

I was very surprised when I discovered no such function exists in Elisp. This function basically writes a string into a buffer, and optionally switches the user to the buffer. Here is the code for that function:

  (defun write-to-buffer (input-string outputbuf &optional switchbuf)
    "Writes `input-string' to the specified `output-buffer'. If
  `switch-buffer' is non-nil, the active buffer will switch to the
  output buffer; otherwise, it will take the user back to their
  initial buffer. Works with `input-string' as a string or a list
  of strings."
    (let ((oldbuf (current-buffer)))
      (switch-to-buffer outputbuf)
      (cond ((char-or-string-p input-string) (insert input-string))
            ((listp input-string) (dolist (elem input-string)
                                    (insert (format "%s\n" elem)))))
      (if switchbuf
          (switch-to-buffer oldbuf))))

Dired

When it comes to dired, I chose do modify some elements on how things are sorted and shown, but there isnt much configuration. First, I want to always copy folders in a recursive way, no questions asked.

  (setq dired-recursive-copies 'always)

Also, when I have two Dired buffers opened side by side, I generally want them to interact, for example if I want to move something around. So, lets tell Emacs that:

  (setq dired-dwim-target t)

Finally, lets tell Dired how to sort the elements to be displayed: directories first, non-hidden first.

  (setq dired-listing-switches "-ahl --group-directories-first")

By the way, lets enable org-download when we are in a Dired buffer:

  (add-hook 'dired-mode-hook 'org-download-enable)

Gnus

Here comes my Gnus configuration. Gnus is an email client I use daily to read, manage, answer to and forward messages I receive by email.

Shortcuts

Some shortcuts needed to be redefined in order for Evil to work well with Gnus. Here is first the declaration of a prefix:

  (spacemacs/declare-prefix "og" "gnus")

And here are said shortcuts. As described above in the shortcuts chapter, these Spacemacs shortcuts are invoked with the SPC leader key.

  (spacemacs/set-leader-keys
    "ogD" 'turn-on-gnus-dired-mode
    "ogd" 'gnus-summary-delete-article
    "ogf" 'gnus-summary-mail-forward
    "ogo" 'my-gnus-group-list-subscribed-groups
    "ogr" 'gnus-summary-insert-new-articles
    "ogs" 'message-send-and-exit)

Hooks

To sort by topics my different mailboxes and folders, I use the gnus-topic-mode minor mode. To get it active by default, I use the following hook to activate it:

  (add-hook 'gnus-group-mode-hook 'gnus-topic-mode)

Mail account configuration

This section will be tangled in ~/.gnus.el.

I only use one email account with Gnus: lucien@phundrak.com. Here is how I configured it:

  (setq gnus-secondary-select-methods '((nnimap "lucien@phundrak.com"
                                                (nnimap-address "mail.phundrak.com")
                                                (nnimap-server-port 143)
                                                (nnimap-stream starttls)))
        message-send-mail-function 'smtpmail-send-it
        smtpmail-smtp-server "mail.phundrak.com"
        smtpmail-stream-type 'starttls
        smtpmail-smtp-service 587
        gnus-message-archive-method '(nnimap "mail.phundrak.com")
        gnus-message-archive-group "Sent"
        nnml-directory "~/Mails"
        message-directory "~/Mails"
        gnus-fetch-old-headers 'some
        mm-discouraged-alternatives '("text/html" "text/richtext"))

General options

This section will be tangled in ~/.gnus.el.

I want to use at one point the Emacs Application Framework which is set to be able one day to render Gnus emails, but for now I am using w3m to render HTML emails I receive.

  (setq mm-text-html-renderer 'w3m)

I also want Gnus to use the cache in case I need to navigate my emails offline:

  (setq gnus-use-cache t)

Lets set a quick organization of the Gnus folders, the format in which sent messages should be saved, and the typology of Gnus topics:

  (eval-after-load 'gnus-topic
    '(progn
       (setq gnus-message-archive-group '((format-time-string "sent.%Y")))
       (setq gnus-topic-topology '(("Gnus" visible)
                                   (("lucien@phundrak.com" visible nil nil))))
       (setq gnus-topic-alist '(("lucien@phundrak.com" ; the key of the topic
                                 "nnimap+lucien@phundrak.com:INBOX"
                                 "nnimap+lucien@phundrak.com:Sent"
                                 "nnimap+lucien@phundrak.com:Drafts")
                                ("Gnus")))))

Visual configuration

This section will be tangled in ~/.gnus.el.

I get it that it used to be a good option with 4/3 screens, but frankly opening an email at the bottom of the frame instead of the side of the frame does not look good anymore. So, lets fix that:

  (gnus-add-configuration
   '(article (horizontal 1.0 (summary .4 point) (article 1.0))))

LSP

When it comes to the LSP layer, there are some options which are not enabled by default that I want to use, especially some modes I want to take advantage of. This is why I enable first the lsp-treemacs-sync-mode so treemacs is LSP aware:

  (lsp-treemacs-sync-mode 1)

I also enable some layers related to dap, the Debug Adapter Protocol, which works really nicely with LSP. Lets enable Daps modes:

  (dap-mode 1)
  (dap-ui-mode 1)
  (dap-tooltip-mode 1)

Finally, I also want the documentation tooltip to show up when the cursor is above a documented piece of code or symbol. Lets enable that too:

  (tooltip-mode 1)

Nov-mode

nov-mode is the mode used in the Epub reader. Here I will write a little function that I will call through a hook each time Im opening a new EPUB file.

  (defun my-nov-font-setup ()
    (face-remap-add-relative 'variable-pitch :family "Charis SIL"
                             :size 16
                             :height 1.0))

Lets bind this function to the nov-mode hook. By the way, well also enable the visual-line-mode here, just in case.

  (mapc (lambda (mode)
          (add-hook 'nov-mode-hook mode))
        '('my-nov-font-setup 'visual-line-mode))

Lets also set the maximum length of the lines in nov-mode:

  (setq nov-text-width 80)

Org-mode

Org-mode is probably one of the best if not the best Emacs feature I have ever discovered. It is awesome for writing documents, regardless of the format you need it to be exported to, for agenda management, and for literary programming, such as with this document.

  (with-eval-after-load 'org
    ;; configuration goes here
    )

Custom org-mode functions

We begin with a couple of custom functions that I use in my org-mode files.

Custom and unique headings ID

The first ones are dedicated to provide org-mode headings a fixed and unique ID that wont change over time. This code was taken from https://writequit.org/articles/emacs-org-mode-generate-ids.html. The first functions job is to create these unique IDs

  (defun eos/org-id-new (&optional prefix)
    "Create a new globally unique ID.

  An ID consists of two parts separated by a colon:
  - a prefix
  - a   unique   part   that   will   be   created   according   to
    `org-id-method'.

  PREFIX  can specify  the  prefix,  the default  is  given by  the
  variable  `org-id-prefix'.  However,  if  PREFIX  is  the  symbol
  `none', don't  use any  prefix even if  `org-id-prefix' specifies
  one.

  So a typical ID could look like \"Org-4nd91V40HI\"."
    (let* ((prefix (if (eq prefix 'none)
                       ""
                     (concat (or prefix org-id-prefix)
                             "-"))) unique)
      (if (equal prefix "-")
          (setq prefix ""))
      (cond
       ((memq org-id-method
              '(uuidgen uuid))
        (setq unique (org-trim (shell-command-to-string org-id-uuid-program)))
        (unless (org-uuidgen-p unique)
          (setq unique (org-id-uuid))))
       ((eq org-id-method 'org)
        (let* ((etime (org-reverse-string (org-id-time-to-b36)))
               (postfix (if org-id-include-domain
                            (progn
                              (require 'message)
                              (concat "@"
                                      (message-make-fqdn))))))
          (setq unique (concat etime postfix))))
       (t (error "Invalid `org-id-method'")))
      (concat prefix unique)))

Now, lets see the function that will be used to get the custom id of a heading at point. If the function does not detect any custom ID, then one should be created and inserted.

  (defun eos/org-custom-id-get (&optional pom create prefix)
    "Get the CUSTOM_ID property of the entry at point-or-marker POM.
     If POM is nil, refer to the  entry at point. If the entry does
     not have an CUSTOM_ID, the function returns nil. However, when
     CREATE  is non  nil, create  a  CUSTOM_ID if  none is  present
     already. PREFIX will be passed through to `eos/org-id-new'. In
     any case, the CUSTOM_ID of the entry is returned."
    (interactive)
    (org-with-point-at pom
      (let ((id (org-entry-get nil "CUSTOM_ID")))
        (cond
         ((and id
               (stringp id)
               (string-match "\\S-" id)) id)
         (create (setq id (eos/org-id-new (concat prefix "h")))
                 (org-entry-put pom "CUSTOM_ID" id)
                 (org-id-add-location id
                                      (buffer-file-name (buffer-base-buffer)))
                 id)))))

Finally, this is the function that gets called on file saves. If the function detects auto-id:t among the org options in the #+OPTIONS: header, then the above function is called.

  (defun eos/org-add-ids-to-headlines-in-file ()
    "Add CUSTOM_ID properties to all headlines in the current
     file which do not already have one. Only adds ids if the
     `auto-id' option is set to `t' in the file somewhere. ie,
     ,#+OPTIONS: auto-id:t"
    (interactive)
    (save-excursion
      (widen)
      (goto-char (point-min))
      (when (re-search-forward "^#\\+OPTIONS:.*auto-id:t"
                               (point-max)
                               t)
        (org-map-entries (lambda ()
                           (eos/org-custom-id-get (point)
                                                  'create))))))

Lets add a hook to the above function so it is called automatically on save, and only in read-write functions.

  (add-hook 'org-mode-hook
            (lambda ()
              (add-hook 'before-save-hook
                        (lambda ()
                          (when (and (eq major-mode 'org-mode)
                                     (eq buffer-read-only nil))
                            (eos/org-add-ids-to-headlines-in-file))))))

Org babel languages

One of the amazing features of org-mode is its literary programming capacities by running code blocks from within Org-mode itself. But for that, only a couple of languages are supported directly by Org-mode itself, and they need to be activated. Here are the languages I activated in my Org-mode configuration:

  (org-babel-do-load-languages
   'org-babel-load-languages
   '((C          . t)
     (dot        . t)
     (emacs-lisp . t)
     (gnuplot    . t)
     (latex      . t)
     (makefile   . t)
     (python     . t)
     (R          . t)
     (sass       . t)
     (scheme     . t)
     (shell      . t)))

Scheme requires a default implementation for geiser:

  (setq geiser-default-implementation 'racket)

By the way, I wish to see source code behave the same way in the source blocks as in their own major mode. Lets tell Emacs so:

  (setq org-src-tab-acts-natively t)

Org variables

User information

Some variables about myself need to be set so Org-mode knows what information to include in exported files.

  (setq user-full-name "Lucien Cartier-Tilet"
        user-real-login-name "Lucien Cartier-Tilet"
        user-login-name "phundrak"
        user-mail-address "lucien@phundrak.com")
Visual settings

Visually, I prefer to hide the markers of macros, so lets do that:

  (setq org-hide-macro-markers t)
Miscellaneous

When creating a link to an Org flie, I want to create an ID only if the link is created interactively, and only if there is no custom ID already created.

  (setq org-id-link-to-org-use-id 'create-if-interactive-and-no-custom-id)

Org files exports

When it comes to exports, I want the LaTeX and PDF exports to be done with XeLaTeX only. This implies the modification of the following variable:

  (setq org-latex-compiler "xelatex")

I also want to get by default minted for LaTeX listings so I can have syntax highlights:

  (setq org-latex-listings 'minted)

The default packages break my LaTeX exports: for some reasons, images are not loaded and exported in PDFs, so I needed to redifine the default packages excluding the one that broke my exports. I also added two default packages, minted and xeCJK for syntax highlighting and Japanese (and additionally Chinese and Korean) support.

  (setq org-latex-default-packages-alist '((""         "graphicx"  t)
                                           ("T1"       "fontspec"  t ("pdflatex"))
                                           (""         "longtable" nil)
                                           (""         "wrapfig"   nil)
                                           (""         "rotating"  nil)
                                           ("normalem" "ulem"      t)
                                           (""         "amsmath"   t)
                                           (""         "textcomp"  t)
                                           (""         "amssymb"   t)
                                           (""         "capt-of"   nil)
                                           (""         "minted"    nil)
                                           (""         "xeCJK"     nil)
                                           (""         "hyperref"  nil)))

By the way, reference links in LaTeX should be written in this format:

  (setq org-export-latex-hyperref-format "\\ref{%s}")

When it comes to the export itself, the latex file needs to be processed several times through XeLaTeX.

  (setq org-latex-pdf-process
        '("xelatex -shell-escape -interaction nonstopmode -output-directory %o %f"
          "xelatex -shell-escape -interaction nonstopmode -output-directory %o %f"
          "xelatex -shell-escape -interaction nonstopmode -output-directory %o %f"))

For Reveal.JS exports, I need to set where to find the framework by default:

  (setq org-reveal-root "file:///home/phundrak/fromGIT/reveal.js")

I also want to disable by default behavior of ^ and _ for only one character, making it compulsory to use instead ^{} and _{} respectively. This is due to my frequent usage of the underscore in my org files as a regular character and not a markup one. So, lets disable it:

  (setq org-use-sub-superscripts (quote {}))

On HTML exports, Org-mode tries to include a validation link for the exported HTML. Lets disable that since I never use it.

  (setq org-html-validation-link nil)

Custom LaTeX formats

I currently have two custom formats for my Org-mode exports: one for general use (initialy for my conlanging files, hence its conlang name), and one for beamer exports.

Below is the declaration of the conlang LaTeX class:

  '("conlang"
    "\\documentclass{book}"
    ("\\chapter{%s}" . "\\chapter*{%s}")
    ("\\section{%s}" . "\\section*{%s}")
    ("\\subsection{%s}" . "\\subsection*{%s}")
    ("\\subsubsection{%s}" . "\\subsubsection*{%s}"))

And here is the declaration of the beamer class:

  `("beamer"
    ,(concat "\\documentclass[presentation]{beamer}\n"
             "[DEFAULT-PACKAGES]"
             "[PACKAGES]"
             "[EXTRA]\n")
    ("\\section{%s}" . "\\section*{%s}")
    ("\\subsection{%s}" . "\\subsection*{%s}")
    ("\\subsubsection{%s}" . "\\subsubsection*{%s}"))

Both these classes have to be added to org-latex-classes like so:

  (eval-after-load "ox-latex"
    ;; update the list of LaTeX classes and associated header (encoding, etc.)
    ;; and structure
    '(add-to-list 'org-latex-classes
                  <<org-latex-class-conlang>>
                  <<org-latex-class-beamer>>
                  ))

Org agenda

One awesome feature of Org mode is the agenda. By default, my agendas are stored in ~/org.

  (setq org-agenda-files (list "~/org"))

I also have a custom command in Org agenda to mark some tasks as daily tasks, with the :DAILY: tag:

  (setq org-agenda-custom-commands '(("h" "Daily habits"
                                      ((agenda ""))
                                      ((org-agenda-show-log t)
                                       (org-agenda-ndays 7)
                                       (org-agenda-log-mode-items '(state))
                                       (org-agenda-skip-function
                                        '(org-agenda-skip-entry-if 'notregexp
                                                                   ":DAILY:"))))))

By the way, lets also add all TODO.org files in Org-agenda with Org-projectile:

  (with-eval-after-load 'org-agenda
    (require 'org-projectile)
    (mapcar #'(lambda (file)
                (when (file-exists-p file)
                  (push file org-agenda-files)))
            (org-projectile-todo-files)))

Org journal

I also occasionally use Org journal. All my files are stored in ~/org/journal, as set below:

  (setq org-journal-dir "~/org/journal/")

The default prefix for org journals is the following:

  (setq org-journal-date-prefix "#+TITLE: ")

The timestamp will be set following the ISO 8601 format:

  (setq org-journal-file-format "%Y-%m-%d")

Org projects

Another great features of Org-mode is the Org projects that allow the user to easily publish a bunch of org files to a remote location. Here is the current declaration of my projects, which will be detailed later:

  (setq org-publish-project-alist
        '(
          <<org-proj-lang-html>>
          <<org-proj-lang-pdf>>
          <<org-proj-lang-static>>
          <<org-proj-lang>>))
Linguistics website

In my case, I only have my linguistics website, made out of three projects. The first component is the one generating the HTML files from the org files.

  ("langue-phundrak-com-org"
   :base-directory "~/Documents/conlanging/web/"
   :base-extension "org"
   :exclude "\\./\\(CONTRIB\\|README\\|head\\|temp\\|svg-ink\\).*"
   :publishing-directory "/ssh:Naro:~/www/phundrak.com/langue-phundrak-com/web"
   :recursive t
   :language "fr"
   :publishing-function org-html-publish-to-html
   :headline-levels 5
   :auto-sitemap t
   :auto-preamble t)

We also have the component for the LaTeX and PDF part of the website:

  ("langue-phundrak-com-pdf"
   :base-directory "~/Documents/conlanging/web/"
   :base-extension "org"
   :exclude "\\./\\(CONTRIB\\|README\\|index\\|head\\|temp\\|svg-ink\\).*"
   :publishing-directory "/ssh:Naro:~/www/phundrak.com/langue-phundrak-com/web"
   :recursive t
   :language "fr"
   :publishing-function org-latex-publish-to-pdf
   :headline-levels 5
   :auto-preamble t)

And lastly, we have the component for all the static files needed to run the website:

  ("langue-phundrak-com-static"
   :base-directory "~/Documents/conlanging/web/"
   :base-extension "css\\|scss\\|dart\\|js\\|png\\|jpg\\|gif\\|svg\\|jpeg\\|ttf\\|woff\\|txt\\|epub"
   :publishing-directory "/ssh:Naro:~/www/phundrak.com/langue-phundrak-com/web"
   :recursive t
   :language "fr"
   :publishing-function org-publish-attachment)

The project is then defined like so:

  ("langue-phundrak-com"
   :components ("langue-phundrak-com-org"
                "langue-phundrak-com-static"
                "langue-phundrak-com-pdf"))

Rust

The first thing I need to set for my Rust setup is the path to racer.

  (setq racer-cmd "~/.cargo/bin/racer")

Now, I also need to point to racer where the source code of Rust is located so I can get some documentation.

  (setq racer-rust-src-path "~/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/src")

Finally, I wish to enable electric-pair-mode and indent-guide-mode for Rust files, so lets enable that through the use of a hook:

  (add-hook 'rust-mode-hook
            '(lambda ()
               (local-set-key (kbd "TAB") #'company-indent-or-complete-common)
               (electric-pair-mode 1)
               (indent-guide-mode 1)))

Scheme

The Scheme configuration will be very short, I just need to tell Emacs the name of the interpreter since it is not the default one:

(setq geiser-chicken-binary "chicken-csi")

Python

Emacs throws me an error about the python interpreter, lets silence it:

  (setq python-shell-completion-native-disabled-interpreters '("python"))