இந்த நிகழ்படத்தில் ஈமாக்ஸ் எடிட்டரில் எப்படி அதற்காக உருவாக்கப்பட்ட பேக்கேஜ்களை use-package எனும் பேக்கேஜ் மூலமாக நிர்வகிப்பது என்பதை பார்க்கலாம்.
நிகழ்படம் வழங்கியவர்: தங்க அய்யனார், KanchiLUG
இணைப்புகள்:
https://www.gnu.org/software/emacs/
https://orgmode.org/worg/org-contrib/babel/
https://orgmode.org/worg/org-contrib/babel/languages/ob-doc-elisp.html
குறிச்சொற்கள்:
#emacs #usepackage #orgmode #babel #literateprogramming #tamillinuxcommunity #linux
Latest config.org
* Basic Configuration
** User Interface
*** Hide menubar
#+begin_src emacs-lisp
(menu-bar-mode 0)
#+end_src
*** Hide toolbar and scrollbar
#+begin_src emacs-lisp
(when (display-graphic-p)
(tool-bar-mode 0)
(scroll-bar-mode 0))
#+end_src
*** No inhibit startup message
#+begin_src emacs-lisp
(setq inhibit-startup-screen t)
#+end_src
*** Set number
#+begin_src emacs-lisp
(column-number-mode)
(global-display-line-numbers-mode t)
#+end_src
*** Theme
#+begin_src emacs-lisp
;;(load-theme 'wombat)
#+end_src
*** Font configuration
#+begin_src emacs-lisp
(set-face-attribute 'default nil :font "JetBrainsMono Nerd Font" :height 150)
#+end_src
** Behavior
*** No (backup, Lock, autosave)
#+begin_src emacs-lisp
;; No autoback up and lock files
(setq
make-backup-files nil
auto-save-default nil
create-lockfiles nil)
#+end_src
*** Y or N instead of Yes or No
#+begin_src emacs-lisp
(fset 'yes-or-no-p 'y-or-n-p)
#+end_src
*** Electric auto pair mode
#+begin_src emacs-lisp
(electric-pair-mode 1)
#+end_src
*** Turn off blinking cursor
#+begin_src emacs-lisp
(blink-cursor-mode -1)
#+end_src
*** Vertical bar
#+begin_src emacs-lisp
(setq-default cursor-type 'bar)
#+end_src
** Custom
*** Tell me how much time it takes to load configuration
#+begin_src emacs-lisp
(add-hook 'emacs-startup-hook
(lambda ()
(message "Emacs loaded in %s."
(emacs-init-time))))
#+end_src
** Use package
*** Installation
#+begin_src emacs-lisp
(require 'package)
(setq package-archives '(("melpa" . "https://melpa.org/packages/")
("org" . "https://orgmode.org/elpa/")
("elpa" . "https://elpa.gnu.org/packages/")))
(package-initialize)
(unless package-archive-contents
(package-refresh-contents))
;; Initialize use package on non-linux based system
(unless (package-installed-p 'use-package)
(package-install 'use-package))
(require 'use-package)
(setq use-package-always-ensure t)
#+end_src
** Third party packages
*** Which Key
#+begin_src emacs-lisp
(use-package which-key
:init (which-key-mode)
:diminish which-key-mode
:config
(setq which-key-idle-delay 0.3))
#+end_src
*** Helpful
#+begin_src emacs-lisp
(use-package helpful
:commands (helpful-callable helpful-variable helpful-command helpful-key)
:bind
([remap describe-function] . helpful-callable)
([remap describe-command] . helpful-command)
([remap describe-variable] . helpful-variable)
([remap describe-key] . helpful-key))
#+end_src
*** DooM modeline
#+begin_src emacs-lisp
(use-package doom-modeline
:init (doom-modeline-mode 1))
#+end_src
*** Nerd icons
#+begin_src emacs-lisp
(use-package nerd-icons
;; :custom
;; The Nerd Font you want to use in GUI
;; "Symbols Nerd Font Mono" is the default and is recommended
;; but you can use any other Nerd Font if you want
;; (nerd-icons-font-family "Symbols Nerd Font Mono")
)
#+end_src
*** Doom themes
#+begin_src emacs-lisp
(use-package doom-themes
:config
;; Global settings (defaults)
(setq doom-themes-enable-bold t ; if nil, bold is universally disabled
doom-themes-enable-italic t) ; if nil, italics is universally disabled
(load-theme 'doom-one t)
;; Enable custom neotree theme (all-the-icons must be installed!)
;;(doom-themes-neotree-config)
;; or for treemacs users
;;(setq doom-themes-treemacs-theme "doom-atom") ; use "doom-colors" for less minimal icon theme
;;(doom-themes-treemacs-config)
;; Corrects (and improves) org-mode's native fontification.
(doom-themes-org-config))
#+end_src
*** Completion
#+begin_src emacs-lisp
;; Enable vertico
(use-package vertico
:init
(vertico-mode)
;; Different scroll margin
;; (setq vertico-scroll-margin 0)
;; Show more candidates
;; (setq vertico-count 20)
;; Grow and shrink the Vertico minibuffer
;; (setq vertico-resize t)
;; Optionally enable cycling for `vertico-next' and `vertico-previous'.
(setq vertico-cycle t)
)
;; Persist history over Emacs restarts. Vertico sorts by history position.
(use-package savehist
:init
(savehist-mode))
;; Optionally use the `orderless' completion style.
(use-package orderless
:init
;; Configure a custom style dispatcher (see the Consult wiki)
;; (setq orderless-style-dispatchers '(+orderless-consult-dispatch orderless-affix-dispatch)
;; orderless-component-separator #'orderless-escapable-split-on-space)
(setq completion-styles '(orderless basic)
completion-category-defaults nil
completion-category-overrides '((file (styles partial-completion)))))
;; Enable rich annotations using the Marginalia package
(use-package marginalia
;; Bind `marginalia-cycle' locally in the minibuffer. To make the binding
;; available in the *Completions* buffer, add it to the
;; `completion-list-mode-map'.
:bind (:map minibuffer-local-map
("M-A" . marginalia-cycle))
;; The :init section is always executed.
:init
;; Marginalia must be activated in the :init section of use-package such that
;; the mode gets enabled right away. Note that this forces loading the
;; package.
(marginalia-mode))
#+end_src
*** Rainbow delimters
#+begin_src emacs-lisp
(use-package rainbow-delimiters
:hook (prog-mode . rainbow-delimiters-mode))
#+end_src
*** consult
#+begin_src emacs-lisp
;; Example configuration for Consult
(use-package consult
;; Replace bindings. Lazily loaded due by `use-package'.
:bind (;; C-c bindings in `mode-specific-map'
("C-c M-x" . consult-mode-command)
("C-c h" . consult-history)
("C-c k" . consult-kmacro)
("C-c m" . consult-man)
("C-c i" . consult-info)
([remap Info-search] . consult-info)
;; C-x bindings in `ctl-x-map'
("C-x M-:" . consult-complex-command) ;; orig. repeat-complex-command
("C-x b" . consult-buffer) ;; orig. switch-to-buffer
("C-x 4 b" . consult-buffer-other-window) ;; orig. switch-to-buffer-other-window
("C-x 5 b" . consult-buffer-other-frame) ;; orig. switch-to-buffer-other-frame
("C-x r b" . consult-bookmark) ;; orig. bookmark-jump
("C-x p b" . consult-project-buffer) ;; orig. project-switch-to-buffer
;; Custom M-# bindings for fast register access
("M-#" . consult-register-load)
("M-'" . consult-register-store) ;; orig. abbrev-prefix-mark (unrelated)
("C-M-#" . consult-register)
;; Other custom bindings
("M-y" . consult-yank-pop) ;; orig. yank-pop
;; M-g bindings in `goto-map'
("M-g e" . consult-compile-error)
("M-g f" . consult-flymake) ;; Alternative: consult-flycheck
("M-g g" . consult-goto-line) ;; orig. goto-line
("M-g M-g" . consult-goto-line) ;; orig. goto-line
("M-g o" . consult-outline) ;; Alternative: consult-org-heading
("M-g m" . consult-mark)
("M-g k" . consult-global-mark)
("M-g i" . consult-imenu)
("M-g I" . consult-imenu-multi)
;; M-s bindings in `search-map'
("M-s d" . consult-find)
("M-s D" . consult-locate)
("M-s g" . consult-grep)
("M-s G" . consult-git-grep)
("M-s r" . consult-ripgrep)
("M-s l" . consult-line)
("M-s L" . consult-line-multi)
("M-s k" . consult-keep-lines)
("M-s u" . consult-focus-lines)
;; Isearch integration
("M-s e" . consult-isearch-history)
:map isearch-mode-map
("M-e" . consult-isearch-history) ;; orig. isearch-edit-string
("M-s e" . consult-isearch-history) ;; orig. isearch-edit-string
("M-s l" . consult-line) ;; needed by consult-line to detect isearch
("M-s L" . consult-line-multi) ;; needed by consult-line to detect isearch
;; Minibuffer history
:map minibuffer-local-map
("M-s" . consult-history) ;; orig. next-matching-history-element
("M-r" . consult-history)) ;; orig. previous-matching-history-element
;; Enable automatic preview at point in the *Completions* buffer. This is
;; relevant when you use the default completion UI.
:hook (completion-list-mode . consult-preview-at-point-mode)
;; The :init configuration is always executed (Not lazy)
:init
;; Optionally configure the register formatting. This improves the register
;; preview for `consult-register', `consult-register-load',
;; `consult-register-store' and the Emacs built-ins.
(setq register-preview-delay 0.5
register-preview-function #'consult-register-format)
;; Optionally tweak the register preview window.
;; This adds thin lines, sorting and hides the mode line of the window.
(advice-add #'register-preview :override #'consult-register-window)
;; Use Consult to select xref locations with preview
(setq xref-show-xrefs-function #'consult-xref
xref-show-definitions-function #'consult-xref)
;; Configure other variables and modes in the :config section,
;; after lazily loading the package.
:config
;; Optionally configure preview. The default value
;; is 'any, such that any key triggers the preview.
;; (setq consult-preview-key 'any)
;; (setq consult-preview-key "M-.")
;; (setq consult-preview-key '("S-<down>" "S-<up>"))
;; For some commands and buffer sources it is useful to configure the
;; :preview-key on a per-command basis using the `consult-customize' macro.
(consult-customize
consult-theme :preview-key '(:debounce 0.2 any)
consult-ripgrep consult-git-grep consult-grep
consult-bookmark consult-recent-file consult-xref
consult--source-bookmark consult--source-file-register
consult--source-recent-file consult--source-project-recent-file
;; :preview-key "M-."
:preview-key '(:debounce 0.4 any))
;; Optionally configure the narrowing key.
;; Both < and C-+ work reasonably well.
(setq consult-narrow-key "<") ;; "C-+"
;; Optionally make narrowing help available in the minibuffer.
;; You may want to use `embark-prefix-help-command' or which-key instead.
;; (define-key consult-narrow-map (vconcat consult-narrow-key "?") #'consult-narrow-help)
;; By default `consult-project-function' uses `project-root' from project.el.
;; Optionally configure a different project root function.
;;;; 1. project.el (the default)
;; (setq consult-project-function #'consult--default-project--function)
;;;; 2. vc.el (vc-root-dir)
;; (setq consult-project-function (lambda (_) (vc-root-dir)))
;;;; 3. locate-dominating-file
;; (setq consult-project-function (lambda (_) (locate-dominating-file "." ".git")))
;;;; 4. projectile.el (projectile-project-root)
;; (autoload 'projectile-project-root "projectile")
;; (setq consult-project-function (lambda (_) (projectile-project-root)))
;;;; 5. No project support
;; (setq consult-project-function nil)
)
#+end_src
*** Nov - epub reader
#+begin_src emacs-lisp
(use-package visual-fill-column)
(use-package nov
:defer t
:init
(add-to-list 'auto-mode-alist '("\\.epub\\'" . nov-mode))
:config
(setq nov-text-width t)
(setq visual-fill-column-center-text t)
(add-hook 'nov-mode-hook 'visual-line-mode)
(add-hook 'nov-mode-hook 'visual-fill-column-mode)
)
#+end_src