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(experimental): react to directory related events in the database

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With filenotify events related to subdirectories, automatically
invalidate no longer valid entries and add the new ones as they appear.
This commit is contained in:
Wetlize
2021-08-23 01:09:44 +03:00
parent 1c3d3098c7
commit 9401fad1b2
1 changed files with 30 additions and 3 deletions
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33
org-roam-db.el
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@ -634,9 +634,36 @@ be on of the values from `org-roam-db-autosync-update-method'."
(defun org-roam-db-autosync--filenotify-update (event)
"Update Org-roam's database according to EVENT sent by `filenotify'."
(cl-destructuring-bind (_descriptor _action &rest files) event
(mapc (lambda (f) (when (org-roam-file-p f) (org-roam-db-update-file f)))
files)))
(cl-destructuring-bind (_descriptor action &rest files) event
(cond
((cl-find-if #'org-roam-file-p files)
(mapc #'org-roam-db-update-file files))
((memq action '(created deleted renamed))
(apply (intern (format "org-roam-db-autosync--update-%s-dir" action)) files)))))
(defun org-roam-db-autosync--update-created-dir (dir)
"Add entries from Org-roam files under DIR to the database."
(when (file-directory-p dir)
(let ((files (let ((org-roam-directory dir))
(org-roam-list-files))))
(emacsql-with-transaction (org-roam-db)
(mapc #'org-roam-db-update-file files)))))
(defun org-roam-db-autosync--update-deleted-dir (dir)
"Invalidate entries related to Org-roam files under DIR from the database."
(let ((dir (thread-first dir
;; Ensure that separator is present in the name
(directory-file-name)
(concat (f-path-separator))
;; Follow the same format as the rest of the files in the database
(expand-file-name))))
(org-roam-db-query [:delete :from files :where (like file $s1)]
(concat dir "%"))))
(defun org-roam-db-autosync--update-renamed-dir (old-name new-name)
"Invalidate and then add files renamed from OLD-NAME directory to NEW-NAME."
(org-roam-db-autosync--update-deleted-dir old-name)
(org-roam-db-autosync--update-created-dir new-name))
(defun org-roam-db-autosync--delete-file-a (file &optional _trash)
"Maintain cache consistency when file deletes.