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;;; programming.el -*- lexical-binding: t; -*-
;;;
;;; Author: Jakob L. Kreuze <zerodaysfordays@sdf.org>
;;; URL: https://git.sr.ht/~jakob/.emacs.d/
;;;
;;; Configuration for "meta" packages which apply to all programming language
;;; development environments I have configured.
;;;
(use-package dumb-jump
;; Replace `xref' keybindings instead of using the default ones, since these
;; will get overwritten if I'm using a proper tag indexer anyway.
:config
(define-key dumb-jump-mode-map (kbd "C-M-g") nil)
(define-key dumb-jump-mode-map (kbd "C-M-p") nil)
(define-key dumb-jump-mode-map (kbd "C-M-q") nil)
(define-key dumb-jump-mode-map (kbd "M-.") #'dumb-jump-go)
(define-key dumb-jump-mode-map (kbd "M-,") #'dumb-jump-back)
(dumb-jump-mode))
(use-package company
;; Start suggesting completions (almost) as soon as possible.
:config
(setq company-idle-delay 0.1
company-minimum-prefix-length 3)
;; Use standard movement keys for selecting entries from the completion popup
;; instead of those used for minibuffer next/previous.
:bind
(:map company-active-map
("M-n" . nil)
("M-p" . nil)
("C-n" . company-select-next)
("C-p" . company-select-previous))
;; And have <tab> responsible for completion rather than <ret>, so that
;; company isn't quite as in-the-way.
:bind
(:map company-active-map
("TAB" . company-complete-selection)
("<tab>" . company-complete-selection)
("RET" . nil)
("<return>" . nil)))
(use-package compile
:straight nil
:bind
("<f12>" . compile)
;; Taken from EmacsWiki [1]. The compilation command can be changed by invoking
;; compile with a prefix argument, so I don't see the advantage of popping a
;; prompt every time.
;;
;; [1]: https://www.emacswiki.org/emacs/CompileCommand
:init
(setq compilation-read-command nil)
;; Hide the compilation buffer upon successful compilation. I typically don't
;; care about the output unless there were errors.
:config
(add-hook 'compilation-finish-functions
(lambda (buf strg)
(ignore strg)
(let ((win (get-buffer-window buf 'visible)))
(when win (delete-window win))))))
(use-package flycheck)
(use-package magit
:bind
("C-c g" . magit-status))
;; After several failed attempts at getting into Smartparens, I've finally
;; developed a taste for it. Rommel was not lying when he said that "[i]t's like
;; having cybernetic limbs—it makes you jump higher and punch harder."
(use-package smartparens
;; Use the default Smartparens configuration as a base.
:config
(require 'smartparens-config)
;; Enable the Smartparens-flavored replacement for `show-paren-mode'.
:config
(show-smartparens-global-mode t)
;; Enable Smartparens in all modes derived from `prog-mode' or `comint-mode',
;; the latter hopefully covering all REPL cases.
:hook
(prog-mode . turn-on-smartparens-mode)
(comint-mode . turn-on-smartparens-mode)
;; Rebind the default keys for manipulating sexps to the alternatives
;; suggested in Emacs and Pairs [1].
;;
;; [1]: https://ebzzry.io/en/emacs-pairs/
:bind
(:map smartparens-mode-map
("C-M-a" . sp-beginning-of-sexp)
("C-M-e" . sp-end-of-sexp)
("C-M-d" . sp-down-sexp)
("C-M-u" . sp-backward-up-sexp)
("C-M-f" . sp-forward-sexp)
("C-M-b" . sp-backward-sexp)
("C-M-n" . sp-next-sexp)
("C-M-p" . sp-previous-sexp)
("M-[" . sp-backward-unwrap-sexp)
("M-]" . sp-unwrap-sexp)
("C-<right>" . sp-forward-slurp-sexp)
("C-<left>" . sp-backward-slurp-sexp)
("M-<right>" . sp-foward-barf-sexp)
("M-<right>" . sp-forward-barf-sexp)
("C-M-t" . sp-transpose-sexp)
("C-M-k" . sp-kill-sexp)
("M-k" . sp-backward-kill-sexp))
;; The following mask `split-line' and `completion-at-point', respectively,
;; but I have yet to use either of these, so I don't mind using the keys for
;; Smartparens. I use "o" as a mnemonic for "out", and "i" is a mnemonic for
;; "in".
:bind
(:map smartparens-mode-map
("C-M-o" . sp-up-sexp)
("C-M-i" . sp-backward-down-sexp)))
;; Dash [1] is an alright system for managing documentation offline. We're in
;; Emacs, though, so why not make full use of it and use EWW to browse docs?
;;
;; [1]: https://kapeli.com/dash
(defun maybe-install-docset (name)
"Install NAME if it is not already installed."
(let ((file-name (concat name ".docset")))
(unless (file-exists-p (expand-file-name file-name dash-docs-docsets-path))
(dash-docs-install-docset name))))
(use-package dash-docs
:init
(setq dash-docs-browser-func 'eww)
:config
(maybe-install-docset "Rust")
:hook
(rust-mode . (lambda () (setq-local dash-docs-docsets '("Rust"))))
:bind
(("C-c C-M-d" . counsel-dash)))
(use-package counsel-dash)
;; I configure EWW here because I mostly use it for Dash. Thanks to the
;; Javascript curse, Firefox is my daily driver for recreational browsing.
(use-package eww
:straight nil
:init
(setq shr-max-width 80)
(setq shr-use-colors nil)
(setq shr-use-fonts nil)
(setq eww-header-line-format nil))
;; The last time I tried `lsp-mode', I was unhappy with the sheer amount of
;; stuff that was included. So I use `eglot' instead. Thus far, it's been a
;; pleasant experience.
(use-package eglot)
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