nixos-config/profiles/applications/emacs/init.el

;;; init.el --- balsoft's config

;;; Commentary:

;;; None

;; -*- lexical-binding: t -*-

;;; Code:

(require 'package)

(package-initialize)

(eval-when-compile
  (require 'use-package))
(setq use-package-always-ensure nil)

(setq-default tab-width 2)

(mode-line-bell-mode)

(line-number-mode)
(column-number-mode)

(setq-default indent-tabs-mode nil)

(setq-default tab-always-indent 't)

(setq-default compilation-scroll-output 'first-error)

(use-package ws-butler
  :config
  (ws-butler-global-mode)
  )

(global-auto-revert-mode)

(setq auto-save-default nil)
(setq make-backup-files nil)

;; (use-package xah-fly-keys
;;   :config
;;   (xah-fly-keys-set-layout "qwerty")
;;   (xah-fly-keys 1)
;;   (define-key xah-fly-insert-map (kbd "M-SPC") 'xah-fly-command-mode-activate)
;;   )

(use-package evil
  :config
  (evil-mode 1))

(global-set-key (kbd "C-b") 'switch-to-buffer)

(global-display-line-numbers-mode)

(electric-pair-mode)

(electric-indent-mode)

(use-package flycheck
  :config
  (global-flycheck-mode))

(menu-bar-mode -1)
(scroll-bar-mode -1)
(tool-bar-mode -1)
(cua-selection-mode 1)


(setq auto-revert-check-vc-info t)

(vc-mode-line t)

(when (not window-system)
  (xterm-mouse-mode 1))

(use-package fira-code-mode
  :custom (fira-code-mode-disabled-ligatures '("[]" "#{" "#(" "#_" "#_(" "x")) ;; List of ligatures to turn off
  :config (global-fira-code-mode))

(use-package company-ghci
  :config
  (push 'company-ghci company-backends))

(global-set-key [home] 'smart-beginning-of-line)

(global-unset-key [menu-bar options cua-mode])
(global-unset-key (kbd "C-x C-f"))
(global-set-key (kbd "C-x C-f") 'find-file-other-frame)
(global-unset-key (kbd "C-x b")) ;; Old habits die hard

(fringe-mode '(0 . 0))

;; scroll one line at a time (less "jumpy" than defaults)

(setq mouse-wheel-scroll-amount '(1 ((shift) . 1))) ;; one line at a time

(setq mouse-wheel-progressive-speed nil) ;; don't accelerate scrolling

(setq mouse-wheel-follow-mouse 't) ;; scroll window under mouse

(setq scroll-step 1) ;; keyboard scroll one line at a time

(use-package frames-only-mode)
;; Make new frames instead of new windows
(setq pop-up-frames 'graphic-only)
(setq gdb-use-separate-io-buffer nil)
(setq gdb-many-windows nil)

;; -------------------
;; Projectile
;; -------------------
;; No deferred loading as bind-keymap
;; doesn't handle wakib C-d keymaps
(use-package projectile
  :config
  (define-key projectile-mode-map (kbd "C-c p") nil)
  (define-key projectile-mode-map (kbd "C-x p") 'projectile-command-map)
  (projectile-mode 1)
  (global-unset-key [menu-bar tools Projectile])
  (projectile-register-project-type 'flake '("flake.nix")
                                    :compile "nix build"
                                    :run "nix run")
  (setq projectile-project-search-path '("~/projects/"))

  (global-set-key (kbd "<f9>") 'projectile-compile-project)
  (global-set-key (kbd "<f5>") 'projectile-run-project))

(use-package nix-mode
  :hook
  ((nix-mode . (lambda () (local-set-key (kbd "<f7>") 'nix-format-buffer))))
  ((nix-mode . (lambda () (setq indent-line-function 'nix-indent-line)))))

(use-package company
  :config
  (global-company-mode 1)
  ;; Number the candidates (use M-1, M-2 etc to select completions).
  (setq company-show-numbers t)
  (setq company-idle-delay 0)
  )

(use-package company-box
  :hook (company-mode . company-box-mode))


;; -------------------
;; Ivy
;; -------------------
(use-package ivy
  :config
  (ivy-mode 1)
  (setq ivy-use-virtual-buffers t)
  (define-key ivy-minibuffer-map [remap keyboard-quit] 'minibuffer-keyboard-quit)
  (setq ivy-count-format "")
  (setq ivy-initial-inputs-alist nil))

(use-package counsel
  :config
  counsel-mode)

(use-package smex)

(show-paren-mode 1)
;; TODO - MOVE Electric Pair Mode to user local


;; MAJOR MODES

(use-package markdown-mode
  :mode "\\.\\(m\\(ark\\)?down\\|md\\)$")


;; Setup Splash Screen
;; (setq inhibit-startup-screen t)
;; (setq-default major-mode 'fundamental-mode)
;; (setq-default initial-scratch-message "")

(setq custom-file (expand-file-name "custom" user-emacs-directory))
(load custom-file t t)

(auto-fill-mode)


(add-to-list 'default-frame-alist '(font . "@font@"))
(set-face-attribute 'default nil :font "@font@")

(setq inhibit-startup-screen t)

(use-package lsp-mode
  :config
  (add-hook 'rust-mode-hook 'lsp)
  )

(use-package lsp-haskell
  :config
  (add-hook 'haskell-mode-hook 'lsp)
  (add-hook 'haskell-literate-mode-hook 'lsp)
  )

(use-package envrc
  :config
  (envrc-global-mode)
  (advice-add 'lsp :before (lambda (&optional n) (envrc--update))))

(setq treemacs-position 'right)

(use-package treemacs)

(use-package lsp-treemacs)

(use-package treemacs-projectile)

(setq initial-major-mode 'text-mode)

(defun compile-on-save-start ()
  (let ((buffer (compilation-find-buffer)))
    (unless (get-buffer-process buffer)
      (recompile))))

(define-minor-mode compile-on-save-mode
  "Minor mode to automatically call `recompile' whenever the
current buffer is saved. When there is ongoing compilation,
nothing happens."
  :lighter " CoS"
    (if compile-on-save-mode
    (progn  (make-local-variable 'after-save-hook)
        (add-hook 'after-save-hook 'compile-on-save-start nil t))
      (kill-local-variable 'after-save-hook)))

(defun maybe-delete-frame-buffer (frame)
  "When a dedicated FRAME is deleted, also kill its buffer.
A dedicated frame contains a single window whose buffer is not
displayed anywhere else."
  (let ((windows (window-list frame)))
    (when (eq 1 (length windows))
      (let ((buffer (window-buffer (car windows))))
        (when (eq 1 (length (get-buffer-window-list buffer nil t)))
          (kill-buffer buffer))))))

(add-to-list 'delete-frame-functions #'maybe-delete-frame-buffer)

(require 'base16-theme)

(defvar base16-generated-colors
  '(:base00 "@base00@"
    :base01 "@base01@"
    :base02 "@base02@"
    :base03 "@base03@"
    :base04 "@base04@"
    :base05 "@base05@"
    :base06 "@base06@"
    :base07 "@base07@"
    :base08 "@base08@"
    :base09 "@base09@"
    :base0A "@base0A@"
    :base0B "@base0B@"
    :base0C "@base0C@"
    :base0D "@base0D@"
    :base0E "@base0E@"
    :base0F "@base0F@")
  "All colors for Base16 are defined here.")

;; Define the theme
(deftheme base16-generated)

;; Add all the faces to the theme
(base16-theme-define 'base16-generated base16-generated-colors)

;; Mark the theme as provided
(provide-theme 'base16-generated)

(enable-theme 'base16-generated)
;;; init.el ends here