I attached the patch. I think this feature will be helpful for use who archive web page data usually like me. To be more portable, I also added an defcustom option for other external command. And use an if condition to detect whether external command available, else warning user.
--
[ stardiviner ]
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From fcf78b5a5447ae81479e7839df001da659ede5e3 Mon Sep 17 00:00:00 2001
From: stardiviner <numbch...@gmail.com>
Date: Wed, 27 May 2020 17:42:24 +0800
Subject: [PATCH] * org-attach.el: add a new command to offline save web page
* lisp/org-attach.el (org-attach-url-offline): A new org-attach
dispatcher command to offline save web page to a single file.
* lisp/org-agenda.el (org-attach-url-offline-command): A customize
option to specify external command for offline save web page.
* lisp/org-attach.el (org-attach-offline-url-with-monolith): A command
invoke external command "monolith" to offline save web page.
---
lisp/org-attach.el | 26 +++++++++++++++++++++++++-
1 file changed, 25 insertions(+), 1 deletion(-)
diff --git a/lisp/org-attach.el b/lisp/org-attach.el
index 57d1360fc..0d13e0da1 100644
--- a/lisp/org-attach.el
+++ b/lisp/org-attach.el
@@ -204,6 +204,8 @@ (defcustom org-attach-commands
"Attach a file using symbolic-link method.")
((?u ?\C-u) org-attach-url
"Attach a file from URL (downloading it).")
+ ((?U) org-attach-url-offline
+ "Attach an offline version of web page URL (use monolith).")
((?b) org-attach-buffer
"Select a buffer and attach its contents to the task.")
((?n ?\C-n) org-attach-new
@@ -467,6 +469,27 @@ (defun org-attach-url (url)
(let ((org-attach-method 'url))
(org-attach-attach url)))
+(defun org-attach-url-offline (url)
+ (interactive "MURL of the web page be offline to attach: \n")
+ (let ((org-attach-method 'offline))
+ (org-attach-attach url)))
+
+(defcustom org-attach-url-offline-command (executable-find "monolith")
+ "The command used to offline save web page."
+ :type 'string
+ :safe #'stringp
+ :group 'org-attach)
+
+(defun org-attach-offline-url-with-monolith (url target-file)
+ "Save an offline archive of web page with monolith."
+ (if org-attach-url-offline-command
+ (make-process
+ :name "org-attach-offline"
+ :command (list org-attach-url-offline-command url "-o" target-file)
+ :sentinel (lambda (proc event) (message "org-attach-offline finished!"))
+ :buffer "*org-attach-offline*")
+ (warn "You must have a command availble for offline save web page!\n Set variable `org-attach-url-offline-command'.")))
+
(defun org-attach-buffer (buffer-name)
"Attach BUFFER-NAME's contents to current outline node.
BUFFER-NAME is a string. Signals a `file-already-exists' error
@@ -504,7 +527,8 @@ (defun org-attach-attach (file &optional visit-dir method)
((eq method 'cp) (copy-file file attach-file))
((eq method 'ln) (add-name-to-file file attach-file))
((eq method 'lns) (make-symbolic-link file attach-file))
- ((eq method 'url) (url-copy-file file attach-file)))
+ ((eq method 'url) (url-copy-file file attach-file))
+ ((eq method 'offline) (org-attach-offline-url-with-monolith file attach-file)))
(run-hook-with-args 'org-attach-after-change-hook attach-dir)
(org-attach-tag)
(cond ((eq org-attach-store-link-p 'attached)
--
2.26.2
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