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;;; init.el --- bandali's emacs configuration -*- lexical-binding: t -*-
;; Copyright (c) 2018-2025 Amin Bandali <bandali@gnu.org>
;; This program is free software: you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;; This program is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with this program. If not, see <https://www.gnu.org/licenses/>.
;;; Commentary:
;; bandali's opinionated GNU Emacs configs. I tend to use the latest
;; development trunk of emacs.git, but I try to maintain backward
;; compatibility with a few of the recent older GNU Emacs releases
;; so I could easily reuse it on machines stuck with older Emacsen.
;;; Code:
;;; Initial setup
(setq
debug-on-error init-file-debug
debug-on-quit init-file-debug)
;; whoami
(setq
user-full-name "Amin Bandali"
user-mail-address "bandali@kelar.org")
(eval-and-compile
(defsubst b/emacs.d (path)
"Expand path PATH relative to `user-emacs-directory'."
(expand-file-name
(convert-standard-filename path) user-emacs-directory))
;; Wrappers around the new keybinding functions, with fallback to
;; the corresponding older lower level function on older Emacsen.
(defsubst b/keymap-set (keymap key definition)
(if (version< emacs-version "29")
(define-key keymap (kbd key) definition)
(keymap-set keymap key definition)))
(defsubst b/keymap-global-set (key command)
(if (version< emacs-version "29")
(global-set-key (kbd key) command)
(keymap-global-set key command)))
(defsubst b/keymap-local-set (key command)
(if (version< emacs-version "29")
(local-set-key (kbd key) command)
(keymap-local-set key command)))
(defsubst b/keymap-global-unset (key)
(if (version< emacs-version "29")
(global-unset-key (kbd key))
(keymap-global-unset key 'remove)))
(defsubst b/keymap-local-unset (key)
(if (version< emacs-version "29")
(local-unset-key (kbd key))
(keymap-local-unset key 'remove)))
(when (version< emacs-version "29")
;; Emacs 29 introduced the handy `setopt' macro for setting user
;; options (defined with `defcustom') with a syntax similar to
;; `setq'. So, we define it on older Emacsen that don't have it.
(defmacro setopt (&rest pairs)
"Set VARIABLE/VALUE pairs, and return the final VALUE.
This is like `setq', but is meant for user options instead of
plain variables. This means that `setopt' will execute any
`custom-set' form associated with VARIABLE.
\(fn [VARIABLE VALUE]...)"
(declare (debug setq))
(unless (zerop (mod (length pairs) 2))
(error "PAIRS must have an even number of variable/value members"))
(let ((expr nil))
(while pairs
(unless (symbolp (car pairs))
(error "Attempting to set a non-symbol: %s" (car pairs)))
(push `(setopt--set ',(car pairs) ,(cadr pairs))
expr)
(setq pairs (cddr pairs)))
(macroexp-progn (nreverse expr))))
(defun setopt--set (variable value)
(custom-load-symbol variable)
;; Check that the type is correct.
(when-let ((type (get variable 'custom-type)))
(unless (widget-apply (widget-convert type) :match value)
(warn "Value `%S' does not match type %s" value type)))
(put variable 'custom-check-value (list value))
(funcall (or (get variable 'custom-set) #'set-default) variable value))))
;; Separate custom file (don't want it mixing with init.el).
(setopt custom-file (b/emacs.d "custom.el"))
(with-eval-after-load 'custom
(load custom-file 'noerror))
;;; Package management
;; List of the packages I use from GNU ELPA and NonGNU ELPA.
(setq
package-selected-packages
'(debbugs delight eat elpher))
(require 'package)
;; Add NonGNU ELPA on older Emacsen.
(when (version< emacs-version "28")
(add-to-list
'package-archives
'("nongnu" . "https://elpa.nongnu.org/nongnu/")))
(package-install-selected-packages)
;;; Emacs server
;; Start Emacs server.
;; https://www.gnu.org/software/emacs/manual/html_node/emacs/Emacs-Server.html
(run-with-idle-timer 0.5 nil #'require 'server)
(with-eval-after-load 'server
(declare-function server-edit "server")
(b/keymap-global-set "C-c F D" #'server-edit)
(declare-function server-running-p "server")
(or (server-running-p) (server-mode)))
;;; Essential packages
(add-to-list 'load-path (b/emacs.d "lisp"))
(require 'bandali-essentials)
(require 'bandali-utils)
(require 'bandali-prog)
;; (require 'bandali-exwm)
(require 'bandali-eshell)
(require 'bandali-ibuffer)
(require 'bandali-dired)
;; Email with Gnus and message
(require 'bandali-gnus)
(require 'bandali-message)
;; (with-eval-after-load 'sendmail
;; (setopt mail-header-separator ""))
;; (with-eval-after-load 'smtpmail
;; (setopt smtpmail-queue-mail t
;; smtpmail-queue-dir (concat b/maildir "queue/")))
;; IRC with ERC
(require 'bandali-erc)
(require 'bandali-misc)
(require 'bandali-po)
;;; init.el ends here
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