spacemacs/layers/+chat/rcirc/packages.el

(setq rcirc-packages
  '(
    company
    company-emoji
    emoji-cheat-sheet-plus
    flyspell
    (helm-rcirc :location local)
    persp-mode
    rcirc
    rcirc-color
    rcirc-notify
    ))

(when (configuration-layer/layer-usedp 'auto-completion)
  (defun rcirc/post-init-company ()
    (spacemacs|add-company-hook rcirc-mode)
    (push 'company-capf company-backends-rcirc-mode))

  (defun rcirc/post-init-company-emoji ()
    (push 'company-emoji company-backends-rcirc-mode)))

(defun rcirc/post-init-emoji-cheat-sheet-plus ()
  (add-hook 'rcirc-mode-hook 'emoji-cheat-sheet-plus-display-mode))

(defun rcirc/post-init-flyspell ()
  (spell-checking/add-flyspell-hook 'rcirc-mode-hook))

(when (configuration-layer/layer-usedp 'spacemacs-helm)
  (defun rcirc/init-helm-rcirc ()
    (use-package helm-rcirc
      :commands helm-rcirc-auto-join-channels
      :init
      (spacemacs/set-leader-keys "irc" 'helm-rcirc-auto-join-channels))))

(defun rcirc/post-init-persp-mode ()
  ;; do not save rcirc buffers
  (with-eval-after-load 'persp-mode
    (push (lambda (b) (with-current-buffer b (eq major-mode 'rcirc-mode)))
          persp-filter-save-buffers-functions))

  (spacemacs|define-custom-layout rcirc-spacemacs-layout-name
    :binding rcirc-spacemacs-layout-binding
    :body
    (progn
      (defun spacemacs-layouts/add-rcirc-buffer-to-persp ()
        (persp-add-buffer (current-buffer)
                          (persp-get-by-name
                           rcirc-spacemacs-layout-name)))
      (add-hook 'rcirc-mode-hook #'spacemacs-layouts/add-rcirc-buffer-to-persp)
      (call-interactively 'spacemacs/rcirc))))

(defun rcirc/init-rcirc ()
  (use-package rcirc
    :defer t
    :init
    (progn
      (spacemacs/add-to-hook 'rcirc-mode-hook '(rcirc-omit-mode
                                                rcirc-track-minor-mode))

      (defun spacemacs//rcirc-with-authinfo (arg)
        "Fire rcirc with support for authinfo."
        (unless arg
          (if (file-exists-p "~/.authinfo.gpg")
              (spacemacs//rcirc-authinfo-config)
            (message "Cannot find file ~/.authinfo.gpg")))
        (rcirc arg))

      (defun spacemacs//rcirc-with-znc (arg)
        "Fire rcirc with support for znc."
        (if arg
            (rcirc arg)
          (setq rcirc-server-alist
                ;; This will replace :auth with the correct thing, see the
                ;; doc for that function
                (spacemacs//znc-rcirc-server-alist-get-authinfo
                 rcirc-server-alist))
          (spacemacs//znc-rcirc-connect)))

      (spacemacs/set-leader-keys "air" 'spacemacs/rcirc)
      (defun spacemacs/rcirc (arg)
        "Launch rcirc."
        (interactive "P")
        (require 'rcirc)
        ;; dispatch to rcirc launcher with appropriate support
        (cond
         (rcirc-enable-authinfo-support (spacemacs//rcirc-with-authinfo arg))
         (rcirc-enable-znc-support (spacemacs//rcirc-with-znc arg))
         (t (rcirc arg))))
      (evil-set-initial-state 'rcirc-mode 'insert))
    :config
    (progn
      ;; (set-input-method "latin-1-prefix")
      (set (make-local-variable 'scroll-conservatively) 8192)

      (setq rcirc-fill-column 80
            rcirc-buffer-maximum-lines 2048
            rcirc-omit-responses '("JOIN" "PART" "QUIT" "NICK" "AWAY" "MODE")
            rcirc-time-format "%Y-%m-%d %H:%M "
            rcirc-omit-threshold 20)

      ;; Exclude rcirc properties when yanking, in order to be able to send mails
      ;; for example.
      (add-to-list 'yank-excluded-properties 'rcirc-text)

      ;; rcirc-reconnect
      (let ((dir (configuration-layer/get-layer-local-dir 'rcirc)))
        (require 'rcirc-reconnect
                 (concat dir "rcirc-reconnect/rcirc-reconnect.el")))

      ;; load this file from the dropbox location load-path
      ;; this is where you can store personal information
      (require 'pinit-rcirc nil 'noerror)

      (evil-define-key 'normal rcirc-mode-map
        (kbd "C-j") 'rcirc-insert-prev-input
        (kbd "C-k") 'rcirc-insert-next-input)

      ;; add a key for EMMS integration
      (when (boundp 'emms-track-description)
        (defun rcirc/insert-current-emms-track ()
          (interactive)
          (insert (emms-track-description (emms-playlist-current-selected-track))))
        (define-key rcirc-mode-map (kbd "C-c C-e") 'rcirc/insert-current-emms-track))

      ;; Minimal logging to `~/.emacs.d/.cache/rcirc-logs/'
      ;; by courtesy of Trent Buck.
      (setq rcirc-log-directory (concat spacemacs-cache-directory "/rcirc-logs/"))
      (setq rcirc-log-flag t)
      (defun rcirc-write-log (process sender response target text)
        (when rcirc-log-directory
          (when (not (file-directory-p rcirc-log-directory))
            (make-directory rcirc-log-directory))
          (with-temp-buffer
            ;; Sometimes TARGET is a buffer :-(
            (when (bufferp target)
              (setq target (with-current-buffer buffer rcirc-target)))
            ;; Sometimes buffer is not anything at all!
            (unless (or (null target) (string= target ""))
              ;; Print the line into the temp buffer.
              (insert (format-time-string "%Y-%m-%d %H:%M "))
              (insert (format "%-16s " (rcirc-user-nick sender)))
              (unless (string= response "PRIVMSG")
                (insert "/" (downcase response) " "))
              (insert text "\n")
              ;; Append the line to the appropriate logfile.
              (let ((coding-system-for-write 'no-conversion))
                (write-region (point-min) (point-max)
                              (concat rcirc-log-directory  (downcase target))
                              t 'quietly))))))
      (add-hook 'rcirc-print-hooks 'rcirc-write-log)

      ;; dependencies
      ;; will autoload rcirc-notify
      (rcirc-notify-add-hooks)
      (require 'rcirc-color))))

(defun rcirc/init-rcirc-color ()
  (use-package rcirc-color :defer t))

(defun rcirc/init-rcirc-notify ()
  (use-package rcirc-notify
    :defer t
    :config
    (progn
      (defun spacemacs/rcirc-notify-beep (msg)
        "Beep when notifying."
        (let ((player "mplayer")
              (sound (concat user-emacs-directory "site-misc/startup.ogg")))
          (when (and (executable-find player)
                     (file-exists-p sound)))
          (start-process "beep-process" nil player sound)))
      (add-hook 'rcirc-notify-page-me-hooks 'spacemacs/rcirc-notify-beep))))