unkillable-scratch 
Disallow the *scratch* buffer from being killed
Install
From MELPA
(use-package unkillable-scratch
:ensure t
:pin melpa-stable
:config (unkillable-scratch t))
Or manually, after downloading into your load-path
(require 'unkillable-scratch)
(unkillable-scratch t)
Use
The variable unkillable-scratch-behavior defines the action taken when a kill
is attempted on a buffer matching one or more of the regexp's in the list
unkillable-buffers. This list will only match one buffer by default, the
*scratch* buffer.
This package treats the *scratch* buffer specially; in the event of a call to
kill-buffer the buffer contents will be replaced with
initial-scratch-message. To disable this behavior set
unkillable-scratch-do-not-reset-scratch-buffer to t.
The following values of unkillable-scratch-behavior are supported
| Setting | Meaning |
|---|---|
'bury |
bury the buffer instead of killing it (default) |
'do-nothing |
disallow the attempted kill from occurring |
'kill |
kill the buffer -- same as disabling the minor mode |
Related
persistent-scratch is definitely worth a look.
Acknowledgments
The inspiration to make the unkillable-buffers list came from
Donald Curtis (milkypostman)
Contributors
Regrets
If I were the type of person to proliferate breaking-changes, I would
rename the unkillable-scratch minor-mode to
unkillable-scratch-mode for conventions' sake.
Making this change would necessitate re-publishing the package to MELPA and only consume the time of the MELPA maintainers and every user of this package without making any functional changes, so for now just note that said function is enabling a global minor-mode.
License
GPL 2 (or higher) © Free Software Foundation, Inc.