hamacs/ha-irc.org

#+TITLE:  IRC and Bitlbee Interface
#+AUTHOR: Howard X. Abrams
#+DATE:   2020-12-10
#+FILETAGS: :emacs:

A literate programming configuration file for IRC communiction.

#+BEGIN_SRC emacs-lisp :exports none
  ;;; ha-irc.el --- configuration for IRC communication. -*- lexical-binding: t; -*-
  ;;
  ;; © 2020-2022 Howard X. Abrams
  ;;   This work is licensed under a Creative Commons Attribution 4.0 International License.
  ;;   See http://creativecommons.org/licenses/by/4.0/
  ;;
  ;; Author: Howard X. Abrams <http://gitlab.com/howardabrams>
  ;; Maintainer: Howard X. Abrams
  ;; Created: December 10, 2020
  ;;
  ;; This file is not part of GNU Emacs.
  ;;
  ;; *NB:* Do not edit this file. Instead, edit the original literate file at:
  ;;            ~/other/hamacs/ha-irc.org
  ;;       And tangle the file to recreate this one.
  ;;
  ;;; Code:
#+END_SRC
* Introduction
My IRC /needs/ are basic, but I'm not sure which I want to use.
** ERC
#+BEGIN_SRC emacs-lisp
  (use-package erc-hl-nicks
    :after erc)

  (use-package erc-image
    :after erc)

  (use-package erc
    :commands erc
    :config
    (setq
        erc-nick "howard-abrams"
        erc-user-full-name "Howard Abrams"
        erc-prompt ">>"
        erc-prompt-for-nickserv-password nil
        erc-auto-query 'bury
        erc-join-buffer 'bury
        erc-interpret-mirc-color t
        erc-rename-buffers t
        erc-hide-list '("JOIN" "PART" "QUIT")
        erc-track-enable-keybindings nil
        erc-track-visibility nil ; Only use the selected frame for visibility
        erc-fill-column 120
        erc-fill-function 'erc-fill-static
        erc-fill-static-center 20
        erc-autojoin-channels-alist '(("howardabrams.com" "#emacs" "#org-mode"))
        erc-quit-reason (lambda (s) (or s "Fading out..."))
        erc-modules
        '(autoaway autojoin button completion fill irccontrols keep-place
            list match menu move-to-prompt netsplit networks noncommands
            readonly ring stamp track hl-nicks)))

  (defun ha-erc-connect-irc ()
    "Connect to my favorite IRC server with ERC."
    (interactive)
    (let* ((auth-results (auth-source-search :host "howardabrams.com" :port 7777 :max 1))
           (auth-first   (first auth-results))
           (username     (plist-get auth-first :user))
           (password     (funcall (plist-get auth-first :secret))))
      (erc :server "howardabrams.com" :port 7777)
      (sit-for 1)
      (erc-cmd-QUOTE (format "PASS %s:%s" username password))))
#+END_SRC

I like to make sure the text formats to the size of the window:
#+BEGIN_SRC emacs-lisp
  (defun ha-erc-resize-text ()
    "Resize the ERC text to fill the current window."
    (interactive)
    (setq erc-fill-column (1- (window-width))))
#+END_SRC

* ZNC Server
I'm using my own ZNC server, and I need to log in with a password stored in my GPG auth storage:

#+BEGIN_SRC emacs-lisp
  (defun ha-erc-reconnect-password ()
    "Send the reconnection password string."
    (interactive)

    (let* ((auth-results (auth-source-search :host "howardabrams.com" :port 7777 :max 1))
           (auth-first   (first auth-results))
           (username     (plist-get auth-first :user))
           (password     (funcall (plist-get auth-first :secret))))
      (erc-cmd-QUOTE (format "PASS %s:%s" username password))))
#+END_SRC

* Key Bindings
Quick way to start and jump to my IRC world.
#+BEGIN_SRC emacs-lisp
  (defun ha-irc-persp-start ()
    "Create an IRC workspace and start my IRC client."
    (interactive)
    (persp-switch "irc")
    (ha-erc-connect-irc))

  (defun ha-irc-persp-switch ()
    "Switch to the IRC workspace and load the next buffer."
    (interactive)
    (persp-switch "irc")
    (call-interactively 'erc-track-switch-buffer))
#+END_SRC

And some global keys to display them:
#+BEGIN_SRC emacs-lisp
(ha-leader
  "a i" '("irc switch" . ha-irc-persp-switch)
  "a I" '("irc start"  . ha-irc-persp-start))
#+END_SRC

Let's create a leader for this mode:
#+BEGIN_SRC emacs-lisp
  (general-create-definer ha-irc-leader
      :states '(normal visual motion)
      :keymaps '(erc-mode-map)
      :prefix "SPC m"
      :global-prefix "<f17>"
      :non-normal-prefix "S-SPC")
#+END_SRC

And a quick shortcut to call it:
#+BEGIN_SRC emacs-lisp
  (ha-irc-leader
   "o" '("next channel" . erc-track-switch-buffer)
   "w" '("resize text" . ha-erc-resize-text)
   "r" '("reconnect" . ha-erc-connect-irc)
   "p" '("send password" . ha-erc-reconnect-password))
#+END_SRC
* Display Configuration
Using the [[https://github.com/seagle0128/doom-modeline][Doom Modeline]] to add notifications:
#+BEGIN_SRC emacs-lisp
  (setq doom-modeline-irc t
        doom-modeline-irc-stylize 'identity)
#+END_SRC
* Technical Artifacts                                :noexport:
This will =provide= a code name, so that we can =require= this.

#+BEGIN_SRC emacs-lisp :exports none
(provide 'ha-irc)
;;; ha-irc.el ends here
#+END_SRC

#+DESCRIPTION: A literate programming configuration file for IRC.

#+PROPERTY:    header-args:sh :tangle no
#+PROPERTY:    header-args:emacs-lisp :tangle yes
#+PROPERTY:    header-args    :results none :eval no-export :comments no mkdirp yes

#+OPTIONS:     num:nil toc:nil todo:nil tasks:nil tags:nil date:nil
#+OPTIONS:     skip:nil author:nil email:nil creator:nil timestamp:nil
#+INFOJS_OPT:  view:nil toc:nil ltoc:t mouse:underline buttons:0 path:http://orgmode.org/org-info.js