[emacs] updates to initial setup and core defaults

[~bandali/configs] / emacs / init.org

diff --git a/emacs/init.org b/emacs/init.org
index db79586..454766c 100644 (file)
--- a/emacs/init.org
+++ b/emacs/init.org
@@ -5,9 +5,18 @@
 
 TODO: description
 
 
 TODO: description
 

-TODO: toc
+* Contents                                                   :toc_1:noexport:
+
+- [[#intro][Intro]]
+- [[#header][Header]]
+- [[#initial-setup][Initial setup]]
+- [[#config][Config]]
+- [[#footer][Footer]]

 
 * Header
 
 * Header

+:PROPERTIES:
+:CUSTOM_ID: header
+:END:

 
 ** First line
 
 
 ** First line
 


@@ -50,7 +59,28 @@ file.
 ;; THIS FILE IS AUTO-GENERATED FROM `init.org'.
 #+end_src
 
 ;; THIS FILE IS AUTO-GENERATED FROM `init.org'.
 #+end_src
 

+** Naming conventions
+
+The conventions below were inspired by [[https://github.com/hlissner/doom-emacs][Doom]]'s conventions, found
+[[https://github.com/hlissner/doom-emacs/blob/5dacbb7cb1c6ac246a9ccd15e6c4290def67757c/core/core.el#L3-L17][here]]. Naturally, I use my initials, =ab=, instead of =doom=.
+
+#+begin_src emacs-lisp :comments none
+;; Naming conventions:
+;;
+;;   ab-...   public variables or non-interactive functions
+;;   ab--...  private anything (non-interactive), not safe for direct use
+;;   ab/...   an interactive function; safe for M-x or keybinding
+;;   ab:...   an evil operator, motion, or command
+;;   ab|...   a hook function
+;;   ab*...   an advising function
+;;   ab@...   a hydra command
+;;   ...!     a macro
+#+end_src
+

 * Initial setup
 * Initial setup

+:PROPERTIES:
+:CUSTOM_ID: initial-setup
+:END:

 
 #+begin_src emacs-lisp :comments none
 ;;; Code:
 
 #+begin_src emacs-lisp :comments none
 ;;; Code:


@@ -63,10 +93,10 @@ Measure and display startup time. Also, temporarily increase
 collection frequency. Taken from [[https://github.com/dieggsy/dotfiles/tree/3d95bc08033920e077855caf545a975eba52d28d/emacs.d#startup-time][here]].
 
 #+begin_src emacs-lisp
 collection frequency. Taken from [[https://github.com/dieggsy/dotfiles/tree/3d95bc08033920e077855caf545a975eba52d28d/emacs.d#startup-time][here]].
 
 #+begin_src emacs-lisp

-(defconst aminb/emacs-start-time (current-time))
-(defconst aminb/gc-cons-threshold gc-cons-threshold)
-(defconst aminb/gc-cons-percentage gc-cons-percentage)
-(defvar aminb/file-name-handler-alist file-name-handler-alist)
+(defconst ab--emacs-start-time (current-time))
+(defconst ab--gc-cons-threshold gc-cons-threshold)
+(defconst ab--gc-cons-percentage gc-cons-percentage)
+(defvar ab--file-name-handler-alist file-name-handler-alist)

 (setq gc-cons-threshold 400000000
       gc-cons-percentage 0.6
       file-name-handler-alist nil
 (setq gc-cons-threshold 400000000
       gc-cons-percentage 0.6
       file-name-handler-alist nil


@@ -80,18 +110,18 @@ Reset the variables back to default after init.
 (add-hook
  'after-init-hook
  `(lambda ()
 (add-hook
  'after-init-hook
  `(lambda ()

-    (setq gc-cons-threshold aminb/gc-cons-threshold
-         gc-cons-percentage aminb/gc-cons-percentage
-         file-name-handler-alist aminb/file-name-handler-alist)
+    (setq gc-cons-threshold ab--gc-cons-threshold
+         gc-cons-percentage ab--gc-cons-percentage
+         file-name-handler-alist ab--file-name-handler-alist)

     (let ((elapsed (float-time (time-subtract (current-time)
     (let ((elapsed (float-time (time-subtract (current-time)

-                                             aminb/emacs-start-time))))
+                                             ab--emacs-start-time))))

       (message "Loading %s...done (%.3fs) [after-init]"
               ,load-file-name elapsed))))
 #+end_src
 
 ** Package management
 
       (message "Loading %s...done (%.3fs) [after-init]"
               ,load-file-name elapsed))))
 #+end_src
 
 ** Package management
 

-*** [[https://github.com/raxod502/straight.el][=straight.el=]]
+*** =straight.el=

 
 #+begin_quote
 Next-generation, purely functional package manager for the Emacs
 
 #+begin_quote
 Next-generation, purely functional package manager for the Emacs


@@ -118,7 +148,7 @@ hacker.
 **** Useful helpers
 
 #+begin_src emacs-lisp
 **** Useful helpers
 
 #+begin_src emacs-lisp

-(defun straight-reload-init ()
+(defun ab/reload-init ()

   "Reload init.el."
   (interactive)
   (straight-transaction
   "Reload init.el."
   (interactive)
   (straight-transaction


@@ -127,7 +157,7 @@ hacker.
     (load user-init-file nil 'nomessage)
     (message "Reloading init.el... done.")))
 
     (load user-init-file nil 'nomessage)
     (message "Reloading init.el... done.")))
 

-(defun straight-eval-buffer ()
+(defun ab/eval-buffer ()

   "Evaluate the current buffer as Elisp code."
   (interactive)
   (message "Evaluating %s..." (buffer-name))
   "Evaluate the current buffer as Elisp code."
   (interactive)
   (message "Evaluating %s..." (buffer-name))


@@ -143,7 +173,7 @@ hacker.
 *** =use-package=
 
 #+begin_quote
 *** =use-package=
 
 #+begin_quote

-A use-package declaration for simplifying your .emacs.
+A use-package declaration for simplifying your .emacs

 #+end_quote
 
 =use-package= is an awesome utility for managing and configuring
 #+end_quote
 
 =use-package= is an awesome utility for managing and configuring


@@ -159,7 +189,7 @@ performance. So let's install it using =striaght.el= and have it use
 ** No littering in =~/.emacs.d=
 
 #+begin_quote
 ** No littering in =~/.emacs.d=
 
 #+begin_quote

-Help keeping ~/.emacs.d clean.
+Help keeping ~/.emacs.d clean

 #+end_quote
 
 By default, even for Emacs' built-in packages, the configuration files
 #+end_quote
 
 By default, even for Emacs' built-in packages, the configuration files


@@ -189,6 +219,127 @@ it it's own file.
   (load custom-file))
 #+end_src
 
   (load custom-file))
 #+end_src
 

+** Better =$PATH= handling
+
+Let's use [[https://github.com/purcell/exec-path-from-shell][exec-path-from-shell]] to make Emacs use the =$PATH= as set up
+in my shell.
+
+#+begin_src emacs-lisp
+(use-package exec-path-from-shell
+  :defer 1
+  :init
+  (setq exec-path-from-shell-check-startup-files nil)
+  :config
+  (exec-path-from-shell-initialize)
+  ;; while we're at it, let's fix access to our running ssh-agent
+  (exec-path-from-shell-copy-env "SSH_AGENT_PID")
+  (exec-path-from-shell-copy-env "SSH_AUTH_SOCK"))
+#+end_src
+
+** Server
+
+Start server if not already running. Alternatively, can be done by
+issuing =emacs --daemon= in the terminal, which can be automated with
+a systemd service or using =brew services start emacs= on macOS. I use
+Emacs as my window manager (via =exwm=), so I always start Emacs on
+login; so starting the server from inside Emacs is good enough for me.
+
+See [[https://www.gnu.org/software/emacs/manual/html_node/emacs/Emacs-Server.html#Emacs-Server][Using Emacs as a Server]].
+
+#+begin_src emacs-lisp
+(require 'server)
+(unless (server-running-p)
+  (server-start))
+#+end_src
+
+** Backups
+
+Emacs' default backup settings aren't that great. Let's use more
+sensible options. See documentation for the ~make-backup-file~
+variable.
+
+#+begin_src emacs-lisp
+(setq backup-by-copying t
+      version-control t)
+#+end_src
+
+* Core
+:PROPERTIES:
+:CUSTOM_ID: core
+:END:
+
+** Defaults
+
+*** Disable disabled commands
+
+Emacs disables some commands by default that could persumably be
+confusing for novice users. Let's disable that.
+
+#+begin_src emacs-lisp
+(setq disabled-command-function nil)
+#+end_src
+
+*** Kill-ring
+
+Save what I copy into clipboard from other applications into Emacs'
+kill-ring, which would allow me to still be able to easily access it
+in case I kill (cut or copy) something else inside Emacs before
+yanking (pasting) what I'd originally intended to.
+
+#+begin_src emacs-lisp
+(setq save-interprogram-paste-before-kill t)
+#+end_src
+
+*** Keep more =*Messages*=
+
+#+begin_src emacs-lisp
+(setq message-log-max 10000)
+#+end_src
+
+*** Lazy-person-friendly yes/no prompts
+
+Lazy people would prefer to type fewer keystrokes, especially for yes
+or no questions. I'm lazy.
+
+#+begin_src emacs-lisp
+(defalias 'yes-or-no-p #'y-or-n-p)
+#+end_src
+
+*** =*scratch*=
+
+Let's customize the =*scratch*= buffer a bit. First off, I don't need
+the default hint.
+
+#+begin_src emacs-lisp
+(setq initial-scratch-message "")
+#+end_src
+
+Also, let's use Text mode as the major mode, in case I want to
+customize it (=*scratch*='s default major mode, Fundamental mode,
+can't really be customized).
+
+#+begin_src emacs-lisp
+(setq initial-major-mode 'text-mode)
+#+end_src
+
+*** More useful frame titles
+
+Show either the file name or the buffer name (in case the buffer isn't
+visiting a file). Borrowed from Emacs Prelude.
+
+#+begin_src emacs-lisp
+(setq frame-title-format
+      '("" invocation-name " - "
+        (:eval (if (buffer-file-name)
+                   (abbreviate-file-name (buffer-file-name))
+                 "%b"))))
+#+end_src
+
+* Config
+:PROPERTIES:
+:CUSTOM_ID: config
+:END:
+

 ** Org
 
 #+begin_src emacs-lisp
 ** Org
 
 #+begin_src emacs-lisp


@@ -198,6 +349,9 @@ it it's own file.
 #+end_src
 
 * Footer
 #+end_src
 
 * Footer

+:PROPERTIES:
+:CUSTOM_ID: footer
+:END:

 
 #+begin_src emacs-lisp :comments none
 ;;; init.el ends here
 
 #+begin_src emacs-lisp :comments none
 ;;; init.el ends here