org-crypt patch

[Logan James <frogman1189@gmail.com>]

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Add `org-crypt-decrypt-after-save-magic' function to complement the
currently existing `org-crypt-use-before-save-magic' function. Causes the
buffer to be unencrypted after it has been saved to file so that you can
continue working on it without manually running `org-decrypt-entries'
This has the downside of the buffer always being considered as modified,
but is a useful optional function.

Also updated the suggested org-crypt config in the org-manual to include
(org-crypt-decrypt-after-save-magic)

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From 3b58d32a03eea8f7a84661a88c451c2e9ed94fbc Mon Sep 17 00:00:00 2001
From: Logan Warner <logan@true.group>
Date: Fri, 6 Nov 2020 10:11:27 +1300
Subject: [PATCH] lisp/org-crypt.el: Add org-crypt-decrypt-after-save-magic
 which complements the org-crypt-use-before-save-magic function

* org-crypt.el (org-crypt-decrypt-after-save-magic): Add the complement of `org-crypt-use-before-save' called `org-crypt-decrypt-after-save-magic' which adds a function to the hook `after-save-hook' which calls `org-decrypt-entries'
* org-manual.org (Org Crypt): add "(org-crypt-decrypt-after-save-magic)" to the suggested org crypt settings in the Emacs init file, below "(org-crypt-use-before-save-magic)"

`org-crypt-decrypt-after-save-magic' currently encrypts entries on save but doesn't decrypt them again after the file has been saved. This causes users to have to call `org-decrypt-entries'. Adding the new function allows users to add it to their .emacs and remove this requirement. TINYCHANGE
---
 doc/org-manual.org |  1 +
 lisp/org-crypt.el  | 13 +++++++++++++
 2 files changed, 14 insertions(+)

diff --git a/doc/org-manual.org b/doc/org-manual.org
index 7ab7d1c94..6679bea40 100644
--- a/doc/org-manual.org
+++ b/doc/org-manual.org
@@ -19706,6 +19706,7 @@ Here is a suggestion for Org Crypt settings in Emacs init file:
 #+begin_src emacs-lisp
 (require 'org-crypt)
 (org-crypt-use-before-save-magic)
+(org-crypt-decrypt-after-save-magic)
 (setq org-tags-exclude-from-inheritance '("crypt"))
 
 (setq org-crypt-key nil)
diff --git a/lisp/org-crypt.el b/lisp/org-crypt.el
index 187560c55..b8d71114d 100644
--- a/lisp/org-crypt.el
+++ b/lisp/org-crypt.el
@@ -46,6 +46,10 @@
 ;; 4. To automatically encrypt all necessary entries when saving a
 ;;    file, call `org-crypt-use-before-save-magic' after loading
 ;;    org-crypt.el.
+;;
+;; 5. To automatically decrypt all neccessary entries which have been
+;;    encrypted by `org-crypt-use-before-save-magic' after the file
+;;    has been saved call `org-crypt-decrypt-after-save-magic'
 
 ;;; Thanks:
 
@@ -311,6 +315,15 @@ Assume `epg-context' is set."
    'org-mode-hook
    (lambda () (add-hook 'before-save-hook 'org-encrypt-entries nil t))))
 
+;; Note
+;; This will cause the buffer to always register as having been modified
+;;;###autoload
+(defun org-crypt-decrypt-after-save-magic ()
+	"Add a hook to automatically decrypt entries after a file has been saved to disk."
+	(add-hook
+	 'org-mode-hook
+	 (lambda () (add-hook 'after-save-hook 'org-decrypt-entries nil t))))
+
 (add-hook 'org-reveal-start-hook 'org-decrypt-entry)
 
 (provide 'org-crypt)
-- 
2.29.1