init.el

(defconst emacs-start-time (current-time))

(unless noninteractive
  (message "Loading %s..." load-file-name))

(defconst jwm/emacs-directory (concat (getenv "HOME") "/.emacs.d"))

(defun jwm/emacs-subdirectory (d) (expand-file-name d jwm/emacs-directory))

;; initialize some directories if needed
(let* ((subdirs '("elisp" "backups"))
       (fulldirs (mapcar (lambda (d) (jwm/emacs-subdirectory d)) subdirs)))
  (dolist (dir fulldirs)
    (when (not (file-exists-p dir))
      (message "Make directory: %s" dir)
      (make-directory dir))))

(setq custom-file (expand-file-name "settings.el" jwm/emacs-directory))
(when (file-exists-p custom-file)
  (load custom-file t))

(defun jwm/mac-p ()
  (and (eq 'ns (window-system))
       (eq 'darwin system-type)))

(defun jwm/personal-mac-p ()
  (and (jwm/mac-p)
       (file-exists-p (concat (getenv "HOME") "/jdocs"))))

(setq user-full-name "Jeff McCarrell"
      user-mail-address (cond
                         (t "jeff@mccarrell.org")))

(when (window-system)
  (server-start))

(require 'package)

(let ((cached-package-dir (concat (getenv "HOME") "/tmp/elpa-mirror/")))

  (cond
   ((file-directory-p cached-package-dir)
    ;; elpa-mirror says to use this:
    ;; myelpa is the ONLY repository now, dont forget trailing slash in the directory
    (setq package-archives '(("elpa-mirror" . cached-package-dir))))
   (t
    (unless (assoc-default "org" package-archives)
      (add-to-list 'package-archives '("org" . "https://orgmode.org/elpa/") t))
    (unless (assoc-default "melpa" package-archives)
      (add-to-list 'package-archives '("melpa" . "https://melpa.org/packages/") t)))))

(package-initialize)

(unless (package-installed-p 'use-package)
  (package-install 'use-package))

(setq use-package-verbose t)
(setq use-package-always-ensure t)

(require 'use-package)

(use-package dash
  :config (eval-after-load "dash" '(dash-enable-font-lock)))

(use-package s)

(use-package f)

(setq inhibit-startup-message t)
;; needed for emacs23
(setq inhibit-splash-screen t)
(setq initial-scratch-message "")

;; Don't beep at me
(setq visible-bell t)

;; get rid of all of the backup files; that is what revision control is for.
(setq backup-before-writing nil)
(setq make-backup-files nil)

;; screen real estate is for text, not widgets
(when (window-system)
  (tool-bar-mode 0)
  (when (fboundp 'horizontal-scroll-bar-mode)
    (horizontal-scroll-bar-mode -1))
  (scroll-bar-mode -1))

;; prefer utf-8 encoding in all cases.
(let ((lang 'utf-8))
  (set-language-environment lang)
  (prefer-coding-system lang))

(setq-default indent-tabs-mode nil)
(setq tab-width 2)

(setq-default tab-always-indent 'complete)

;; Hollerith cards have had their day. Norming to 80 characters seems like a poor use of screen real estate
;; to me. I can't form a particular argument for 108, other than: it is larger than 72 and seems to fit
;; better.
(setq-default fill-column 108)
(auto-fill-mode)
(global-visual-line-mode)

(defun jwm/shell-is-zsh-p ()
  (string-suffix-p "zsh" shell-file-name))

(when (jwm/shell-is-zsh-p)
  (setq shell-command-switch "-cf"))

;; always end a file with a newline
(setq require-final-newline t)

;; delete the region when typing, just like as we expect nowadays.
(delete-selection-mode t)

;; highlight the matching parenthesis
(show-paren-mode t)

;; Answering just 'y' or 'n' will do
(defalias 'yes-or-no-p 'y-or-n-p)

;; revert buffers automatically when underlying files are changed externally
(global-auto-revert-mode t)

;; no disabled functions
(setq disabled-command-function nil)

(use-package zenburn-theme
  :init (load-theme 'zenburn t))

(defun jwm/font-exists-p (f)
  (and (window-system)
       (member f (font-family-list))))

(when (window-system)
  (let ((preferred-font
         (cond
          ((and (jwm/font-exists-p "Hack") (jwm/mac-p)) "Hack-14")
          (t "Monaco-12"))))
    (message "setting Jeff preferred font %s" preferred-font)
    (set-frame-font preferred-font t t)))

(use-package textsize
  :init (textsize-mode)
  :config
  (customize-set-variable 'textsize-monitor-size-thresholds
                          '((0 . 0) (400 . 5) (650 . 2)))
  (customize-set-variable 'textsize-pixel-pitch-thresholds
                          '((0 . 0))))

(defun jwm/dump-frame-textsize-metrics ()
  "Dump selected frame metrics from the currently selected frame to the *Message* buffer.
Intended to be helpful for debugging the choices textsize makes for a given monitor/display."
  (interactive)
  (let (f (selected-frame))
    (message "emacs frame geometry: X Y WIDTH HEIGHT: %s" (frame-monitor-attribute 'geometry f))
    (message "emacs monitor size WIDTH HEIGHT mm: %s" (frame-monitor-attribute 'mm-size f))
    (message "textsize monitor size  mm: %d" (textsize--monitor-size-mm f))
    (message "textsize monitor size pix: %d" (textsize--monitor-size-px f))
    (message "pixel pitch %.02f" (textsize--pixel-pitch f))
    (message "textsize default points %d" textsize-default-points)
    (message "textsize frame offset %d"
             (or (frame-parameter f 'textsize-manual-adjustment) 0))
    (message "pixel pitch adjustment %d"
             (textsize--threshold-offset textsize-pixel-pitch-thresholds
                                         (textsize--pixel-pitch f)))
    (message "monitor size adjustment %d"
             (textsize--threshold-offset textsize-monitor-size-thresholds
                                         (textsize--monitor-size-mm f)))
    (message "text size chosen: %d" (textsize--point-size f))
    (message "default-font: WIDTHxHEIGHT %dx%d" (default-font-width)(default-font-height))
    (message "resultant text area in chars WIDTHxHEIGHT %dx%d"
             (frame-width f)(frame-height f))
    (message "default face font %s" (face-attribute 'default :font))
    )
  nil)

(defun jwm/adjust-textsize-frame-offset (arg)
  "Supply a per-frame, persistent integer offset (positive or negative) to the textsize font size calculation.
In effect, adjusts the pixel size of the frame font up or down by the offset value."
  (interactive "P")
  (let ((f (selected-frame))
        (offset arg))
    (textsize-modify-manual-adjust f offset)))

(use-package diminish
  :init (diminish 'visual-line-mode))

(use-package whitespace
  :bind ("C-c T w" . whitespace-mode)
  :init
  (setq whitespace-line-column nil
        whitespace-display-mappings '((space-mark 32 [183] [46])
                                      (newline-mark 10 [9166 10])
                                      (tab-mark 9 [9654 9] [92 9])))
  :config
  (set-face-attribute 'whitespace-space       nil :foreground "#666666" :background nil)
  (set-face-attribute 'whitespace-newline     nil :foreground "#666666" :background nil)
  (set-face-attribute 'whitespace-indentation nil :foreground "#666666" :background nil)
  :diminish whitespace-mode)

(use-package expand-region
  :ensure t
  :config
  (defun ha/expand-region (lines)
    "Prefix-oriented wrapper around Magnar's `er/expand-region'.

     Call with LINES equal to 1 (given no prefix), it expands the
     region as normal.  When LINES given a positive number, selects
     the current line and number of lines specified.  When LINES is a
     negative number, selects the current line and the previous lines
     specified.  Select the current line if the LINES prefix is zero."
    (interactive "p")
    (cond ((= lines 1)   (er/expand-region 1))
          ((< lines 0)   (ha/expand-previous-line-as-region lines))
          (t             (ha/expand-next-line-as-region (1+ lines)))))

  (defun ha/expand-next-line-as-region (lines)
    (message "lines = %d" lines)
    (beginning-of-line)
    (set-mark (point))
    (end-of-line lines))

  (defun ha/expand-previous-line-as-region (lines)
    (end-of-line)
    (set-mark (point))
    (beginning-of-line (1+ lines)))

  ;; jwm: however, I can't seem to get C-= from my mac keyboard.
  ;;   so prefer C-@
  :bind ("C-@" . ha/expand-region))

(use-package ace-window
  :bind (("M-o" . ace-window))
  :config
  (setq aw-dispatch-always t)
  (setq aw-keys '(?a ?s ?d ?f ?g ?h ?j ?k ?l)))

(when (jwm/mac-p)
  (setq mac-command-modifier 'meta)
  (setq mac-option-modifier 'super)
  (setq mac-right-option-modifier 'none)

  ;; mirror the mac user gesture for switching emacs frames
  ;;  this supports my habit of using two emacs frames side by side.
  (bind-key "M-`" 'other-frame)

  ;; prevent my thumb from triggering this menu on the trackpad when in open laptop mode
  ;;  ie, when I am working on the train
  (bind-key [C-down-mouse-1] 'ignore))

(bind-keys
 ;; long time bindings I have preferred
 ("C-c u" . revert-buffer)
 ("C-M-g" . goto-line)

 ;; perhaps turn these on when/if I bring in Howards font size functions
 ;; ("s-C-+" . ha/text-scale-frame-increase)
 ;; ("A-C-+" . ha/text-scale-frame-increase)
 ;; ("s-C-=" . ha/text-scale-frame-increase)
 ;; ("A-C-=" . ha/text-scale-frame-increase)
 ;; ("s-C--" . ha/text-scale-frame-decrease)
 ;; ("A-C--" . ha/text-scale-frame-decrease)
 )

(global-set-key (kbd "M-[") 'insert-pair)
(global-set-key (kbd "M-{") 'insert-pair)
;; (global-set-key (kbd "M-<") 'insert-pair)
(global-set-key (kbd "M-'") 'insert-pair)
;; (global-set-key (kbd "M-`") 'insert-pair)
(global-set-key (kbd "M-\"") 'insert-pair)

(use-package wrap-region
  :ensure   t
  :config
  (wrap-region-global-mode t)
  (wrap-region-add-wrappers
   '(("(" ")")
     ("[" "]")
     ("{" "}")
     ("<" ">")
     ("'" "'")
     ("\"" "\"")
     ("‘" "’"   "q")
     ("“" "”"   "Q")
     ("*" "*"   "b"   org-mode)                 ; bolden
     ("*" "*"   "*"   org-mode)                 ; bolden
     ("/" "/"   "i"   org-mode)                 ; italics
     ("/" "/"   "/"   org-mode)                 ; italics
     ("~" "~"   "c"   org-mode)                 ; code
     ("~" "~"   "~"   org-mode)                 ; code
     ("=" "="   "v"   org-mode)                 ; verbatim
     ("=" "="   "="   org-mode)                 ; verbatim
     ("_" "_"   "u" '(org-mode markdown-mode))  ; underline
     ("**" "**" "b"   markdown-mode)            ; bolden
     ("*" "*"   "i"   markdown-mode)            ; italics
     ("`" "`"   "c" '(markdown-mode ruby-mode)) ; code
     ("`" "'"   "c"   lisp-mode)                ; code
     ))
  :diminish wrap-region-mode)

(use-package which-key
  :config
  :diminish which-key-mode
  :config

  ;; prefer to show the entire command name with no truncation.
  ;;  some of those projectile command names exceed the default value of 27, eg
  ;;  projectile-toggle-between-implementation-and-test
  (setq which-key-max-description-length nil)
  (which-key-mode 1))

(use-package dired
  :ensure nil
  :config
  ;; dired - reuse current buffer by pressing 'a'
  ;; (put 'dired-find-alternate-file 'disabled nil)

  ;; always delete and copy recursively
  ;; (setq dired-recursive-deletes 'always)
  ;; (setq dired-recursive-copies 'always)

  ;; if there is a dired buffer displayed in the next window, use its
  ;; current subdir, instead of the current subdir of this dired buffer
  (setq dired-dwim-target t)

  ;; enable some really cool extensions like C-x C-j (dired-jump)
  (require 'dired-x))

;; ag config derived from danielmai's config
(use-package ag
  :commands ag)

(use-package projectile
  :diminish projectile-mode
  :commands (projectile-mode projectile-switch-project)
  :bind (("C-c p p" . projectile-switch-project)
         ("C-c p s s" . projectile-ag)
         ("C-c p s r" . projectile-ripgrep))
  :init
  (setq projectile-completion-system 'ivy)
  :config
  (define-key projectile-mode-map (kbd "s-p") 'projectile-command-map)
  (define-key projectile-mode-map (kbd "C-c p") 'projectile-command-map)
  (setq projectile-keymap-prefix (kbd "C-c p"))
  (projectile-global-mode t))

(use-package counsel-projectile
  :config
  (counsel-projectile-mode))

(use-package ivy
  :diminish (ivy-mode . "")
  :config
  (ivy-mode 1)
  ;; add ‘recentf-mode’ and bookmarks to ‘ivy-switch-buffer’.
  (setq ivy-use-virtual-buffers t)
  ;; show both the index and count of matching items
  (setq ivy-count-format "%d/%d "))

(use-package counsel
  :bind (("C-c j" . counsel-git-grep)
         ("C-c k" . counsel-rg)
         ("C-c K" . counsel-ag)))

(use-package swiper
  :config
  (global-set-key "\C-s" 'swiper))

(use-package avy
  :bind* ("C-." . avy-goto-char-timer)
  :config
  (avy-setup-default))

(use-package magit
  :defer t
  :bind ("C-x g" . magit-status))

(bind-keys
 ;; org mode wants these default global bindings set up.
 ("C-c l" . org-store-link)
 ("C-c c" . org-capture)
 ("C-c a" . org-agenda))

(setq org-directory
      (cond (t "~/jwm/todo")))

;; The default place to put notes for capture mode
(setq org-default-notes-file
      (concat org-directory
              (cond (t "/todo.org"))))

;; where I store periodic reminders, ie, ticklers in GTD-talk
(defvar jwm/org-tickler-file (concat org-directory "/tickler.org"))

(setq org-agenda-files (jwm/emacs-subdirectory "org-agenda-files-list"))

;; capture template.
(setq org-capture-templates
      '(("t" "Todo" entry (file+headline org-default-notes-file "Tasks")
         "* TODO %?\n %i\n  %a\n")
        ("T" "Tickler" entry (file+headline jwm/org-tickler-file "Tickler")
         "* %i%?\n %U\n")
        ("j" "Journal" entry (file+datetree "~/pdata/journal.org")
         "* %?\nEntered on %U\n  %i\n  %a\n")))

;; Jeff task states
(setq org-todo-keywords
      '((sequence
         "TODO(t)"
         "NEXT(n!)"
         "DOING(g!)"
         "WAITING(w@/!)"
         "|" "DONE(d!)"
         "CANCELLED(c@)"
         "DEFERRED(D@)")))

;; I prefer 2 levels of headlines for org refile targets
;;  this matches well with my TASKS/PROJECTS high level
;; Allow refiling into any of my current projects,
;;  as named by org-agenda-files.
(setq org-refile-targets '((org-agenda-files . (:maxlevel . 2))))

(defun save-org-mode-files ()
  (dolist (buf (buffer-list))
    (with-current-buffer buf
      (when (eq major-mode 'org-mode)
        (if (and (buffer-modified-p) (buffer-file-name))
            (save-buffer))))))

(run-with-idle-timer 25 t 'save-org-mode-files)

(use-package ob-restclient)

(org-babel-do-load-languages
 'org-babel-load-languages
 '((python . t)
   (C . t)
   (calc . t)
   (java . t)
   (ruby . t)
   (lisp . t)
   (scheme . t)
   (shell . t)
   (sql . t)
   (sqlite . t)
   (js . t)
   (restclient . t)))

(defun my-org-confirm-babel-evaluate (lang body)
  "Do not confirm evaluation for these languages."
  (not (or (string= lang "C")
           (string= lang "java")
           (string= lang "python")
           (string= lang "emacs-lisp")
           (string= lang "sql")
           (string= lang "sqlite"))))
(setq org-confirm-babel-evaluate 'my-org-confirm-babel-evaluate)

(use-package yasnippet
  :config
  (use-package yasnippet-snippets)
  (yas-reload-all)
  (add-hook 'prog-mode-hook #'yas-minor-mode)
  (add-hook 'org-mode-hook #'yas-minor-mode))

(use-package auto-yasnippet
  :after yasnippet
  :bind (("s-w" . aya-create)
         ("s-y" . aya-expand)))

(use-package crux
  :bind
  (
   ("C-c n" . crux-cleanup-buffer-or-region)
   ;; ("C-S-RET" . crux-smart-open-line-above)
   ;; ("M-o" . crux-smart-open-line)
   ("C-c d" . crux-duplicate-current-line-or-region)
   ("C-c M-d" . crux-duplicate-and-comment-current-line-or-region)
   ("C-c C-r" . crux-rename-file-and-buffer)))

(use-package js2-mode
  :init
  (setq-default js-indent-level 2
                js2-global-externs (list "window" "module" "require" "buster" "sinon" "assert" "refute" "setTimeout" "clearTimeout" "setInterval" "clearInterval" "location" "__dirname" "console" "JSON" "jQuery" "$"))
  (add-to-list 'auto-mode-alist '("\\.js$" . js2-mode))
  (add-to-list 'auto-mode-alist '("\\.es6$" . js2-mode)))

(use-package json-mode)

(use-package elpy
  :ensure t
  :init
  (elpy-enable))

(use-package docker
  :bind ("C-c d" . docker)
  :diminish)

(use-package dockerfile-mode
  :mode "Dockerfile[a-zA-Z.-]*\\'")

;;; Post initialization

(let ((elapsed (float-time (time-subtract (current-time)
                                          emacs-start-time))))
  (message "Loading %s...done (%.3fs)" load-file-name elapsed))

(add-hook 'after-init-hook
          `(lambda ()
             (let ((elapsed (float-time (time-subtract (current-time)
                                                       emacs-start-time))))
               (message "Loading %s...done (%.3fs) [after-init]"
                        ,load-file-name elapsed)))
          t)