doom/config.el

;;; $DOOMDIR/config.el -*- lexical-binding: t; -*-

;; Place your private configuration here! Remember, you do not need to run 'doom
;; sync' after modifying this file!


;; Some functionality uses this to identify you, e.g. GPG configuration, email
;; clients, file templates and snippets. It is optional.
;; (setq user-full-name "John Doe"
;;       user-mail-address "john@doe.com")

;; Doom exposes five (optional) variables for controlling fonts in Doom:
;;
;; - `doom-font' -- the primary font to use
;; - `doom-variable-pitch-font' -- a non-monospace font (where applicable)
;; - `doom-big-font' -- used for `doom-big-font-mode'; use this for
;;   presentations or streaming.
;; - `doom-unicode-font' -- for unicode glyphs
;; - `doom-serif-font' -- for the `fixed-pitch-serif' face
;;
;; See 'C-h v doom-font' for documentation and more examples of what they
;; accept. For example:
;;
;;(setq doom-font (font-spec :family "Fira Code" :size 12 :weight 'semi-light)
;;      doom-variable-pitch-font (font-spec :family "Fira Sans" :size 13))
;;
;; If you or Emacs can't find your font, use 'M-x describe-font' to look them
;; up, `M-x eval-region' to execute elisp code, and 'M-x doom/reload-font' to
;; refresh your font settings. If Emacs still can't find your font, it likely
;; wasn't installed correctly. Font issues are rarely Doom issues!

;; There are two ways to load a theme. Both assume the theme is installed and
;; available. You can either set `doom-theme' or manually load a theme with the
;; `load-theme' function. This is the default:
(setq doom-theme 'doom-one)
(add-hook 'doom-load-theme-hook
          (lambda ()
            (progn
              (set-face-attribute 'font-lock-constant-face nil :weight 'bold)
              (set-face-attribute 'font-lock-function-name-face nil :weight 'bold)
              (set-face-attribute 'font-lock-keyword-face nil :weight 'bold)
              (set-face-attribute 'font-lock-type-face nil :weight 'bold)
              (set-face-attribute 'show-paren-match nil :background nil))))
(after! whitespace (set-face-attribute 'whitespace-line nil :background nil))

;; 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 display-line-numbers-type t)

;; 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/")


;; Whenever you reconfigure a package, make sure to wrap your config in an
;; `after!' block, otherwise Doom's defaults may override your settings. E.g.
;;
;;   (after! PACKAGE
;;     (setq x y))
;;
;; The exceptions to this rule:
;;
;;   - Setting file/directory variables (like `org-directory')
;;   - Setting variables which explicitly tell you to set them before their
;;     package is loaded (see 'C-h v VARIABLE' to look up their documentation).
;;   - Setting doom variables (which start with 'doom-' or '+').
;;
;; Here are some additional functions/macros that will help you configure Doom.
;;
;; - `load!' for loading external *.el files relative to this one
;; - `use-package!' for configuring packages
;; - `after!' for running code after a package has loaded
;; - `add-load-path!' for adding directories to the `load-path', relative to
;;   this file. Emacs searches the `load-path' when you load packages with
;;   `require' or `use-package'.
;; - `map!' for binding new keys
;;
;; To get information about any of these functions/macros, move the cursor over
;; the highlighted symbol at press 'K' (non-evil users must press 'C-c c k').
;; This will open documentation for it, including demos of how they are used.
;; Alternatively, use `C-h o' to look up a symbol (functions, variables, faces,
;; etc).
;;
;; You can also try 'gd' (or 'C-c c d') to jump to their definition and see how
;; they are implemented.

;; -----------------------------------------------------------------------------
;; Override doom configuration.
;; -----------------------------------------------------------------------------

;; Remove org-agenda from dashboard.
(let ((org-agenda-section
       (seq-find (lambda (item) (string= (nth 0 item) "Open org-agenda"))
                 +doom-dashboard-menu-sections)))
  (delete org-agenda-section +doom-dashboard-menu-sections))

;; Remove the silly doom newline advice.
(advice-remove 'newline-and-indent #'+default--newline-indent-and-continue-comments-a)

;; I actually like it when Emacs recenters the screen while scrolling. This may
;; be an issue in large files. When that becomes an issue add an exception here.
(setq scroll-conservatively 0)

;; Add some extra whitespace highlights to doom's opinion.
(advice-add 'doom-highlight-non-default-indentation-h
            :after
            (lambda () (when (bound-and-true-p whitespace-mode)
                         (appendq! whitespace-style '(trailing lines-tail empty))
                         (whitespace-mode +1))))

;; -----------------------------------------------------------------------------
;; Additional coniguration for doom modules.
;; -----------------------------------------------------------------------------

;; Always open magit in other window.
(after! magit (setq magit-display-buffer-function #'magit-display-buffer-traditional))

;; Don't use the LSP formatter.
(after! lsp (setq +format-with-lsp nil))

;; Python virtualenv configuration.
(after! lsp-pyright (setq lsp-pyright-venv-path (concat (getenv "HOME") "/.virtualenvs")))

;; Rainbow delimiters in all prog-mode buffers.
(add-hook! prog-mode #'rainbow-delimiters-mode-enable)

;; Make TRAMP easier to use for sudo on remote hosts.
(after! tramp
  ;; This line proxies all sudo connections via an ssh connection to the provided hostname.
  (add-to-list 'tramp-default-proxies-alist '(nil "\\`root\\'" "/ssh:%h:"))
  ;; This rule is an exception to the above so that local sudo does not proxy via ssh. This has to
  ;; be added last so that it is the first element of the list.
  (add-to-list 'tramp-default-proxies-alist '("localhost" "\\`root\\'" nil)))

;; Extra VTerm configuration.
(after! vterm
  (setq vterm-shell "/bin/zsh"
        vterm-max-scrollback 10000))

(map! :leader
      (:prefix-map ("o" . "open")
       (:when (featurep! :term vterm)
        :desc "Project VTerm"               "p" #'+vterm/project/other-window
        :desc "Project VTerm (same window)" "P" #'+vterm/project/here
        :desc "VTerm"                       "t" #'+vterm/other-window
        :desc "VTerm (same window)"         "T" #'+vterm/here)))

;; -----------------------------------------------------------------------------
;; Configuration for additional packages on top of doom and its modules.
;; -----------------------------------------------------------------------------

;; Faster navigation.
(use-package! ace-jump-mode
  :bind (("C-c SPC" . ace-jump-mode)))

;; A nicer interface for ripgrep. Note that since doom required rg we don't
;; consider the case if it's not installed.
(use-package! deadgrep
  :init
  (setq deadgrep-project-root-function
        (lambda ()
          (read-directory-name "Base directory: " nil default-directory t)))
  :bind
  (("C-x C-g" . deadgrep))
  (:map deadgrep-mode-map
   ("C-o" . deadgrep-open-result-other-window)
   ("<RET>" . deadgrep-visit-result-other-window))
  :config
  (defun deadgrep-open-result-other-window ()
    "Open the result in other window without changing to it."
    (interactive)
    (save-selected-window (deadgrep-visit-result-other-window))))

;; Duplicate things.
(use-package! duplicate-thing
  :bind (("M-C" . duplicate-thing)))

;; It's the 21st century, a file explorer should be pretty.
(use-package! treemacs-icons-dired
  :after dired
  :hook (dired-mode . treemacs-icons-dired-mode))

;; Kill line when calling kill-region without a selected region.
(use-package! whole-line-or-region
  :config
  (define-key whole-line-or-region-local-mode-map [remap comment-dwim] nil)
  (whole-line-or-region-global-mode t))

;; -----------------------------------------------------------------------------
;; Global configuration.
;; -----------------------------------------------------------------------------

(setq-default
 ;; Standard fill-column width.
 fill-column 100
 ;; Do not use tab characters for indentation.
 indent-tabs-mode nil
 ;; Kill whole line when point at beginning of line.
 kill-whole-line t
 ;; Always indent. Why would I ever want to insert a tab?
 tab-always-indent t
 ;; Default indentation size - applies even when indent-tabs-mode is nil.
 tab-width 8
 ;; Highlight lines that are too long in whitespace mode.
 whitespace-line-column fill-column)

;; CamelCase as separate words.
(global-subword-mode t)

;; Doom emacs recommends `visual-line-mode' as it claims wrapping is expensive.
(global-visual-line-mode t)

;; But "C-e" behaves differently in `visual-line-mode' than when they are
;; wrapped. It goes to the end of the visual line, not the logical line. This
;; can be fixed by defining the following aliases.
(defalias #'end-of-visual-line #'end-of-line)
(defalias #'beginning-of-visual-line #'beginning-of-line)

(defun indent-region-or-buffer ()
  "Indent a region if selected, otherwise the whole buffer."
  (interactive)
  (if (region-active-p)
      (indent-region (region-beginning) (region-end))
    (indent-region (point-min) (point-max))))

(defun unfill-paragraph (&optional region)
  "Takes a multi-line paragraph and makes it into a single line of text."
  (interactive (progn (barf-if-buffer-read-only) '(t)))
  (let ((fill-column (point-max))
        ;; This would override `fill-column' if it's an integer.
        (emacs-lisp-docstring-fill-column t))
    (fill-paragraph nil region)))

;; -----------------------------------------------------------------------------
;; Global keybindings.
;; -----------------------------------------------------------------------------

(map!
 ;; For functions defined above.
 "M-Q" #'unfill-paragraph
 "C-M-\\" #'indent-region-or-buffer
 ;; Create binding before dired is loaded.
 "C-x C-j" #'dired-jump
 ;; More convenient window switching.
 "M-o" #'other-window
 "C-x o" #'other-popup
 ;; Kill current buffer without prompting.
 :desc "kill-buffer" "C-x k" (lambda ()
                               (interactive)
                               (let (kill-buffer-query-functions) (kill-buffer)))
 ;; Scroll up/down, but keep point in place.
 "C-<" (lambda()
         (interactive)
         (let ((scroll-preserve-screen-position nil)) (scroll-down 1)))
 "C->" (lambda()
         (interactive)
         (let ((scroll-preserve-screen-position nil)) (scroll-up 1))))