249 lines
8.7 KiB
EmacsLisp
249 lines
8.7 KiB
EmacsLisp
;;; core-editor.el -*- lexical-binding: t; -*-
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(defvar doom-large-file-size 1
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"Size (in MB) above which the user will be prompted to open the file literally
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to avoid performance issues. Opening literally means that no major or minor
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modes are active and the buffer is read-only.")
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(defvar doom-large-file-modes-list
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'(archive-mode tar-mode jka-compr git-commit-mode image-mode
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doc-view-mode doc-view-mode-maybe ebrowse-tree-mode pdf-view-mode)
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"Major modes that `doom|check-large-file' will ignore.")
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(setq-default
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vc-follow-symlinks t
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;; Save clipboard contents into kill-ring before replacing them
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save-interprogram-paste-before-kill t
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;; Bookmarks
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bookmark-default-file (concat doom-etc-dir "bookmarks")
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bookmark-save-flag t
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;; Formatting
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delete-trailing-lines nil
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fill-column 80
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sentence-end-double-space nil
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word-wrap t
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;; Scrolling
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hscroll-margin 1
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hscroll-step 1
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scroll-conservatively 1001
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scroll-margin 0
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scroll-preserve-screen-position t
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;; Whitespace (see `editorconfig')
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indent-tabs-mode nil
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require-final-newline t
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tab-always-indent t
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tab-width 4
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tabify-regexp "^\t* [ \t]+" ; for :retab
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;; Wrapping
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truncate-lines t
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truncate-partial-width-windows 50
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;; whitespace-mode
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whitespace-line-column fill-column
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whitespace-style
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'(face indentation tabs tab-mark spaces space-mark newline newline-mark
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trailing lines-tail)
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whitespace-display-mappings
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'((tab-mark ?\t [?› ?\t])
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(newline-mark ?\n [?¬ ?\n])
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(space-mark ?\ [?·] [?.])))
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;; ediff
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(setq ediff-diff-options "-w"
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ediff-split-window-function #'split-window-horizontally
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ediff-window-setup-function #'ediff-setup-windows-plain)
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(defun doom|check-large-file ()
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"Check if the buffer's file is large (see `doom-large-file-size'). If so, ask
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for confirmation to open it literally (read-only, disabled undo and in
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fundamental-mode) for performance sake."
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(let* ((filename (buffer-file-name))
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(size (nth 7 (file-attributes filename))))
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(when (and (not (memq major-mode doom-large-file-modes-list))
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size (> size (* 1024 1024 doom-large-file-size))
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(y-or-n-p
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(format (concat "%s is a large file, open literally to "
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"avoid performance issues?")
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(file-relative-name filename))))
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(setq buffer-read-only t)
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(buffer-disable-undo)
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(fundamental-mode))))
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(add-hook 'find-file-hook #'doom|check-large-file)
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(push '("/LICENSE$" . text-mode) auto-mode-alist)
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;;
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;; Built-in plugins
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;;
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(add-hook 'after-save-hook #'executable-make-buffer-file-executable-if-script-p)
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;; revert buffers for changed files
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(global-auto-revert-mode 1)
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(setq auto-revert-verbose nil)
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;; enabled by default in Emacs 25+. No thanks.
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(electric-indent-mode -1)
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;; savehist / saveplace
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(setq savehist-file (concat doom-cache-dir "savehist")
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savehist-save-minibuffer-history t
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savehist-autosave-interval nil ; save on kill only
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savehist-additional-variables '(kill-ring search-ring regexp-search-ring)
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save-place-file (concat doom-cache-dir "saveplace"))
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(add-hook! 'doom-init-hook #'(savehist-mode save-place-mode))
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(defun doom*recenter-on-load-saveplace (&rest _)
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"Recenter on cursor when loading a saved place."
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(if buffer-file-name (ignore-errors (recenter))))
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(advice-add #'save-place-find-file-hook :after-while #'doom*recenter-on-load-saveplace)
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;; Keep track of recently opened files
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(def-package! recentf
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:hook (doom-init . recentf-mode)
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:config
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(setq recentf-save-file (concat doom-cache-dir "recentf")
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recentf-max-menu-items 0
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recentf-max-saved-items 300
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recentf-filename-handlers '(file-truename)
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recentf-exclude
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(list #'file-remote-p "\\.\\(gz\\|gif\\|svg\\|png\\|jpe?g\\)$"
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"^/tmp/" "^/ssh:" "\\.?ido\\.last$" "\\.revive$" "/TAGS$"
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"^/var/folders/.+$"
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;; ignore private DOOM temp files (but not all of them)
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(concat "^" (file-truename doom-local-dir)))))
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;;
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;; Core Plugins
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;;
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;; Handles whitespace (tabs/spaces) settings externally. This way projects can
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;; specify their own formatting rules.
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(def-package! editorconfig
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:hook (doom-init . editorconfig-mode)
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:config
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;; editorconfig cannot procure the correct settings for extension-less files.
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;; Executable scripts with a shebang line, for example. So why not use Emacs'
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;; major mode to drop editorconfig a hint? This is accomplished by temporarily
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;; appending an extension to `buffer-file-name' when we talk to editorconfig.
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(defvar doom-editorconfig-mode-alist
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'((sh-mode . "sh")
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(python-mode . "py")
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(ruby-mode . "rb")
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(perl-mode . "pl")
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(php-mode . "php"))
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"An alist mapping major modes to extensions. Used by
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`doom*editorconfig-smart-detection' to give editorconfig filetype hints.")
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(defun doom*editorconfig-smart-detection (orig-fn &rest args)
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"Retrieve the properties for the current file. If it doesn't have an
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extension, try to guess one."
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(let ((buffer-file-name
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(if (and (not (bound-and-true-p org-src-mode))
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(file-name-extension buffer-file-name))
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buffer-file-name
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(format "%s%s" buffer-file-name
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(if-let* ((ext (cdr (assq major-mode doom-editorconfig-mode-alist))))
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(concat "." ext)
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"")))))
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(apply orig-fn args)))
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(advice-add #'editorconfig-call-editorconfig-exec :around #'doom*editorconfig-smart-detection)
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;; Editorconfig makes indentation too rigid in Lisp modes, so tell
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;; editorconfig to ignore indentation. I prefer dynamic indentation support
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;; built into Emacs.
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(dolist (mode '(emacs-lisp-mode lisp-mode))
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(map-delete editorconfig-indentation-alist mode))
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(defvar whitespace-style)
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(defun doom|editorconfig-whitespace-mode-maybe (&rest _)
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"Show whitespace-mode when file uses TABS (ew)."
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(when indent-tabs-mode
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(let ((whitespace-style '(face tabs tab-mark trailing-lines tail)))
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(whitespace-mode +1))))
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(add-hook 'editorconfig-custom-hooks #'doom|editorconfig-whitespace-mode-maybe))
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(def-package! editorconfig-conf-mode
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:mode "\\.?editorconfig$")
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;; Auto-close delimiters and blocks as you type
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(def-package! smartparens
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:config
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(smartparens-global-mode +1)
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(require 'smartparens-config)
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(setq sp-autowrap-region nil ; let evil-surround handle this
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sp-highlight-pair-overlay nil
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sp-cancel-autoskip-on-backward-movement nil
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sp-show-pair-delay 0
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sp-max-pair-length 3)
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;; disable smartparens in evil-mode's replace state (they conflict)
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(add-hook 'evil-replace-state-entry-hook #'turn-off-smartparens-mode)
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(add-hook 'evil-replace-state-exit-hook #'turn-on-smartparens-mode)
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(sp-local-pair '(xml-mode nxml-mode php-mode) "<!--" "-->"
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:post-handlers '(("| " "SPC"))))
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;; Branching undo
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(def-package! undo-tree
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:hook (doom-init . global-undo-tree-mode)
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:config
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;; persistent undo history is known to cause undo history corruption, which
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;; can be very destructive! So disable it!
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(setq undo-tree-auto-save-history nil
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undo-tree-history-directory-alist
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(list (cons "." (concat doom-cache-dir "undo-tree-hist/")))))
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;;
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;; Autoloaded Plugins
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;;
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(def-package! ace-link
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:commands (ace-link-help ace-link-org))
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(def-package! avy
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:commands (avy-goto-char-2 avy-goto-line)
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:config
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(setq avy-all-windows nil
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avy-background t))
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(def-package! command-log-mode
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:commands (command-log-mode global-command-log-mode)
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:config
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(setq command-log-mode-auto-show t
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command-log-mode-open-log-turns-on-mode t))
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(def-package! expand-region
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:commands (er/expand-region er/contract-region er/mark-symbol er/mark-word)
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:config
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(defun doom*quit-expand-region ()
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(when (memq last-command '(er/expand-region er/contract-region))
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(er/contract-region 0)))
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(advice-add #'evil-escape :before #'doom*quit-expand-region)
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(advice-add #'doom/escape :before #'doom*quit-expand-region))
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(def-package! helpful
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:commands (helpful-callable helpful-function helpful-macro helpful-command
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helpful-key helpful-variable helpful-at-point)
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:init
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(setq counsel-describe-function-function #'helpful-callable
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counsel-describe-variable-function #'helpful-variable)
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(global-set-key [remap describe-function] #'helpful-callable)
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(global-set-key [remap describe-command] #'helpful-command)
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(global-set-key [remap describe-variable] #'helpful-variable)
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(global-set-key [remap describe-key] #'helpful-key)
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(advice-add #'helpful--pretty-print :override #'doom*fix-helpful-prettyprint))
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(def-package! pcre2el
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:commands rxt-quote-pcre)
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(def-package! smart-forward
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:commands (smart-up smart-down smart-backward smart-forward))
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(provide 'core-editor)
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;;; core-editor.el ends here
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