dolftax's dotemacs

init.el

;;; Emacs configuration file

;;; Code:

;; -------------------------------------------------
;; Base editor configurations
;; -------------------------------------------------

;; Scrollbars, menubars, toolbars. Hide'em
(if (display-graphic-p)
      (progn
      (tool-bar-mode -1)
      (scroll-bar-mode -1)
      (mouse-wheel-mode t)))

;; Remove menu bar
(menu-bar-mode -1)

;; Base text mode and other configuration
(setq inhibit-startup-message t)
(setq major-mode 'text-mode)
(setq make-backup-files nil)

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

;; Line and column numbers
(global-linum-mode t)
(line-number-mode t)
(column-number-mode t)
(size-indication-mode t)

;; Change behaviour of yes or no
(fset 'yes-or-no-p 'y-or-n-p)

;; Disable tab mode
(setq-default indent-tabs-mode nil)

;; Set default font
(set-default-font "Menlo 14")

;; Syntax highlighting
(setq font-lock-maximum-decoration t)

;; Delete selection
(delete-selection-mode 1)

;; Do not test recent files on startup
(setq recentf-keep '(file-remote-p file-readable-p))

;; more useful frame title, that show either a file or a
;; buffer name (if the buffer isn't visiting a file)
(setq frame-title-format
    '("emacs - " (:eval (if (buffer-file-name)
     (abbreviate-file-name (buffer-file-name))
     "%b"))))
;; Stop creating backups
(setq make-backup-files nil)

;; Startup *scratch* buffer
(setq initial-major-mode 'text-mode)
(setq initial-scratch-message "// Use this buffer for notes\n// Find files   : C-x C-f\n// Recent files : C-c f\n\n")

;; Install packages
(setq package-archives '(("gnu" . "http://elpa.gnu.org/packages/")
                         ("melpa" . "http://melpa.org/packages/")))
(package-initialize)

;; Install packages
(defun ensure-package-installed (&rest packages)
    "Assure every package is installed, ask for installation if it’s not.

 Return a list of installed packages or nil for every skipped package."
    (mapcar
     (lambda (package)
       ;; (package-installed-p 'evil)
       (if (package-installed-p package) nil
         (package-install package)))
     packages))

;; make sure to have downloaded archive description.
;; Or use package-archive-contents as suggested by Nicolas Dudebout
(or (file-exists-p package-user-dir)
    (package-refresh-contents))

;; Install packages
(ensure-package-installed
 'exec-path-from-shell
 'go-mode
 'go-guru
 'magit
 'js2-mode
 'json-mode
 'web-mode
 'markdown-mode
 'helm
 'helm-core
 'flycheck
 'flymake
 'flymake-go
 'monokai-theme
 'yaml-mode
 'toml-mode
 'async
 'dash
 'popup
 'powerline
 )

;; Copy to clipboard
(setq select-enable-clipboard t)

;; Start maximised
(add-to-list 'default-frame-alist '(fullscreen . maximized))

;; Exec path from shell
(exec-path-from-shell-initialize)

;; JS mode
;; http://www.flycheck.org/manual/latest/index.html
(require 'flycheck)
(require 'flymake)

;; turn on flychecking globally
(add-hook 'after-init-hook #'global-flycheck-mode)

;; disable jshint since we prefer eslint checking
(setq-default flycheck-disabled-checkers
  (append flycheck-disabled-checkers
    '(javascript-jshint)))

;; use eslint with web-mode for jsx files
(flycheck-add-mode 'javascript-eslint 'web-mode)

;; customize flycheck temp file prefix
(setq-default flycheck-temp-prefix ".flycheck")

;; disable json-jsonlist checking for json files
(setq-default flycheck-disabled-checkers
  (append flycheck-disabled-checkers
          '(json-jsonlist)))

;; Web mode config
;; Web mode
(add-to-list 'auto-mode-alist '("\\.html?\\'" . web-mode))
(setq web-mode-markup-indent-offset 2)
(setq web-mode-css-indent-offset 2)
(setq web-mode-code-indent-offset 4)
(setq web-mode-enable-comment-keywords t)
(setq web-mode-enable-current-element-highlight t)

;; Powerline config
(require 'powerline)
(powerline-default-theme)

;; Helm
(require 'helm-config)
(global-set-key (kbd "M-x") 'helm-M-x)
(global-set-key (kbd "C-x r b") 'helm-filtered-bookmarks)
(global-set-key (kbd "C-x C-f") 'helm-find-files)
(helm-mode 1)
(define-key helm-map (kbd "<tab>") 'helm-execute-persistent-action) ; rebind tab to do persistent action
(define-key helm-map (kbd "C-i") 'helm-execute-persistent-action) ; make TAB works in terminal
(define-key helm-map (kbd "C-z")  'helm-select-action) ; list actions using C-z

;; Whitespace
(require 'whitespace)
(setq whitespace-line-column 120) ;; limit line length
(setq whitespace-style '(face tabs empty trailing space-before-tab space-after-tab))
(add-hook 'prog-mode-hook 'whitespace-mode)
(add-hook 'before-save-hook 'delete-trailing-whitespace)
(add-hook 'before-save-hook 'whitespace-cleanup)

;; Recent files
(require 'recentf)
(recentf-mode 1)
(setq recentf-max-menu-items 100)

;; Line numbers
(add-hook 'prog-mode-hook 'linum-mode)
(setq linum-format "%4d ")

;; Replace switch-buffer with helm-for-files
(global-set-key (kbd "C-x b") 'helm-for-files)

;; Start eshell or swit[1;5B]ch to it if it's active.
(global-set-key (kbd "C-x m") 'eshell)

;; rename buffer & visited file
(global-set-key (kbd "C-c r") 'rename-file-and-buffer)

;; Recent files
(global-set-key (kbd "C-c f") 'helm-recentf)

;; JS indent mode
(setq js-indent-level 2)
(setq js2-indent-switch-body t)

(put 'erase-buffer 'disabled nil)

;; Magit
(global-set-key (kbd "C-x g") 'magit-status)

;; Path
(defun set-exec-path-from-shell-PATH ()
  (let ((path-from-shell (replace-regexp-in-string
                          "[ \t\n]*$"
                          ""
                          (shell-command-to-string "$SHELL --login -i -c 'echo $PATH'"))))
    (setenv "PATH" path-from-shell)
    (setq eshell-path-env path-from-shell) ; for eshell users
    (setq exec-path (split-string path-from-shell path-separator))))

(when window-system (set-exec-path-from-shell-PATH))

;; GOPATH
(setenv "GOPATH" "/Users/Jai/go")

;; Add a directory to the load path so we can put extra files there
(add-to-list 'load-path "~/.emacs.d/lisp/")

;; Go mode
;; Define function to call when go-mode loads
(exec-path-from-shell-copy-env "GOPATH")
(defun my-go-mode-hook ()
  (add-hook 'before-save-hook 'gofmt-before-save) ; gofmt before every save
  (setq gofmt-command "goimports")                ; gofmt uses invokes goimports
  (if (not (string-match "go" compile-command))   ; set compile command default
      (set (make-local-variable 'compile-command)
           "go build -v && go test -v && go vet"))

  ;; guru settings
  (go-guru-hl-identifier-mode)                    ; highlight identifiers

  ;; Key bindings specific to go-mode
  (local-set-key (kbd "M-.") 'godef-jump)         ; Go to definition
  (local-set-key (kbd "M-*") 'pop-tag-mark)       ; Return from whence you came
  (local-set-key (kbd "M-p") 'compile)            ; Invoke compiler
  (local-set-key (kbd "M-P") 'recompile)          ; Redo most recent compile cmd
  (local-set-key (kbd "M-]") 'next-error)         ; Go to next error (or msg)
  (local-set-key (kbd "M-[") 'previous-error))     ; Go to previous error or msg

;; Connect go-mode-hook with the function we just defined
(add-hook 'go-mode-hook 'my-go-mode-hook)

;; If the go-guru.el file is in the load path, this will load it.
(require 'go-guru)
(require 'flymake-go)

(custom-set-variables
 ;; custom-set-variables was added by Custom.
 ;; If you edit it by hand, you could mess it up, so be careful.
 ;; Your init file should contain only one such instance.
 ;; If there is more than one, they won't work right.
 '(ansi-color-faces-vector
   [default default default italic underline success warning error])
 '(custom-enabled-themes (quote (monokai)))
 '(custom-safe-themes
   (quote
    ("c3d4af771cbe0501d5a865656802788a9a0ff9cf10a7df704ec8b8ef69017c68" "3629b62a41f2e5f84006ff14a2247e679745896b5eaa1d5bcfbc904a3441b0cd" default)))
 '(package-selected-packages
   (quote
    (dockerfile-mode terraform-mode protobuf-mode go-guru powerline toml-mode yaml-mode monokai-theme flycheck helm markdown-mode web-mode json-mode js2-mode magit go-mode exec-path-from-shell))))
(custom-set-faces
 ;; custom-set-faces was added by Custom.
 ;; If you edit it by hand, you could mess it up, so be careful.
 ;; Your init file should contain only one such instance.
 ;; If there is more than one, they won't work right.
 )

(global-auto-revert-mode t)