Build additional titles cache
This commit is contained in:
Jethro Kuan
parent
66ba96289f
commit
e165486dc5
1 changed files with 97 additions and 55 deletions
152
org-roam.el
152
org-roam.el
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@ -169,60 +169,83 @@ If `ABSOLUTE', return the absolute file-path. Else, return the relative file-pat
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,(async-inject-variables "org-roam-files")
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,(async-inject-variables "org-roam-directory")
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(let ((backward-links (make-hash-table :test #'equal))
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(forward-links (make-hash-table :test #'equal)))
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(cl-flet* ((org-roam--parse-content (file) (with-temp-buffer
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(insert-file-contents file)
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(with-current-buffer (current-buffer)
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(org-element-map (org-element-parse-buffer) 'link
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(lambda (link)
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(let ((type (org-element-property :type link))
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(path (org-element-property :path link))
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(start (org-element-property :begin link)))
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(when (and (string= type "file")
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(string= (file-name-extension path) "org"))
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(goto-char start)
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(let* ((element (org-element-at-point))
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(content (or (org-element-property :raw-value element)
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(buffer-substring
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(or (org-element-property :content-begin element)
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(org-element-property :begin element))
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(or (org-element-property :content-end element)
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(org-element-property :end element))))))
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(list :from file
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:to (file-truename (expand-file-name path org-roam-directory))
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:content (string-trim content))))))))))
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(org-roam--process-items (items) (mapcar
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(lambda (item)
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(pcase-let ((`(:from ,p-from :to ,p-to :content ,content) item))
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;; Build forward-links
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(let ((links (gethash p-from forward-links)))
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(if links
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(puthash p-from
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(if (member p-to links)
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links
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(cons p-to links)) forward-links)
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(puthash p-from (list p-to) forward-links)))
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;; Build backward-links
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(let ((contents-hash (gethash p-to backward-links)))
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(if contents-hash
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(if-let ((contents-list (gethash p-from contents-hash)))
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(let ((updated (cons content contents-list)))
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(puthash p-from updated contents-hash)
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(puthash p-to contents-hash backward-links))
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(progn
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(puthash p-from (list content) contents-hash)
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(puthash p-to contents-hash backward-links)))
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(let ((contents-hash (make-hash-table :test #'equal)))
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(puthash p-from (list content) contents-hash)
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(puthash p-to contents-hash backward-links))))))
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items)))
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(forward-links (make-hash-table :test #'equal))
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(file-titles (make-hash-table :test #'equal)))
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(cl-flet* ((org-roam--parse-content
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(file)
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(with-temp-buffer
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(insert-file-contents file)
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(with-current-buffer (current-buffer)
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(org-element-map (org-element-parse-buffer) 'link
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(lambda (link)
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(let ((type (org-element-property :type link))
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(path (org-element-property :path link))
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(start (org-element-property :begin link)))
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(when (and (string= type "file")
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(string= (file-name-extension path) "org"))
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(goto-char start)
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(let* ((element (org-element-at-point))
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(content (or (org-element-property :raw-value element)
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(buffer-substring
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(or (org-element-property :content-begin element)
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(org-element-property :begin element))
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(or (org-element-property :content-end element)
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(org-element-property :end element))))))
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(list :from file
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:to (file-truename (expand-file-name path org-roam-directory))
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:content (string-trim content))))))))))
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(org-roam--process-items
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(items)
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(mapcar
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(lambda (item)
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(pcase-let ((`(:from ,p-from :to ,p-to :content ,content) item))
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;; Build forward-links
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(let ((links (gethash p-from forward-links)))
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(if links
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(puthash p-from
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(if (member p-to links)
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links
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(cons p-to links)) forward-links)
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(puthash p-from (list p-to) forward-links)))
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;; Build backward-links
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(let ((contents-hash (gethash p-to backward-links)))
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(if contents-hash
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(if-let ((contents-list (gethash p-from contents-hash)))
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(let ((updated (cons content contents-list)))
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(puthash p-from updated contents-hash)
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(puthash p-to contents-hash backward-links))
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(progn
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(puthash p-from (list content) contents-hash)
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(puthash p-to contents-hash backward-links)))
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(let ((contents-hash (make-hash-table :test #'equal)))
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(puthash p-from (list content) contents-hash)
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(puthash p-to contents-hash backward-links))))))
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items))
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(org-roam--extract-title
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(buffer)
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(with-current-buffer buffer
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(org-element-map
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(org-element-parse-buffer)
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'keyword
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(lambda (kw)
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(when (string= (org-element-property :key kw) "TITLE")
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(org-element-property :value kw)))
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:first-match t))))
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(mapcar #'org-roam--process-items
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(mapcar #'org-roam--parse-content org-roam-files)))
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(mapcar #'org-roam--parse-content org-roam-files))
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(mapcar (lambda (file)
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(with-temp-buffer
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(insert-file-contents file)
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(when-let ((title (org-roam--extract-title (current-buffer))))
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(puthash file title file-titles))))
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org-roam-files))
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(list
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:forward forward-links
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:backward backward-links)))
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:backward backward-links
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:titles file-titles)))
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(lambda (cache)
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(setq org-roam-cache cache))))
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(setq org-roam-cache cache)
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(message "Org-roam cache built!"))))
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(defun org-roam--insert-item (item)
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"Insert `ITEM' into `org-roam-cache'.
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@ -231,7 +254,8 @@ If `ABSOLUTE', return the absolute file-path. Else, return the relative file-pat
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Before calling this function, `org-roam-cache' should be already populated."
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(let ((forward-cache (plist-get org-roam-cache :forward))
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(backward-cache (plist-get org-roam-cache :backward)))
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(backward-cache (plist-get org-roam-cache :backward))
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(title-cache (plist-get org-roam-cache :titles)))
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(pcase-let ((`(:from ,p-from :to ,p-to :content ,content) item))
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;; Build forward-links
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(let ((links (gethash p-from forward-cache)))
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@ -255,7 +279,8 @@ Before calling this function, `org-roam-cache' should be already populated."
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(puthash p-from (list content) contents-hash)
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(puthash p-to contents-hash backward-cache))))
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(setq org-roam-cache (list :forward forward-cache
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:backward backward-cache)))))
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:backward backward-cache
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:titles title-cache)))))
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(defun org-roam--parse-content ()
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"Parse the current buffer, and return a list of items for processing."
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@ -286,8 +311,9 @@ This is equivalent to removing the node from the graph."
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(with-current-buffer (current-buffer)
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(let ((file (file-truename (buffer-file-name buffer)))
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(forward-cache (plist-get org-roam-cache :forward))
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(backward-cache (plist-get org-roam-cache :backward)))
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;; Setup 1: Remove all existing links for file
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(backward-cache (plist-get org-roam-cache :backward))
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(titles-cache (plist-get org-roam-cache :titles)))
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;; Step 1: Remove all existing links for file
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(when-let ((forward-links (gethash file forward-cache)))
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;; Delete backlinks to file
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(dolist (link forward-links)
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@ -296,12 +322,28 @@ This is equivalent to removing the node from the graph."
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(puthash link backward-links backward-cache)))
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;; Clean out forward links
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(remhash file forward-cache))
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(setq org-roam-cache (list :forward forward-cache :backward backward-cache)))))
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;; Step 2: Remove from the title cache
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(remhash file titles-cache)
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(setq org-roam-cache (list :forward forward-cache
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:backward backward-cache
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:titles titles-cache)))))
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(defun org-roam--update-cache-title (buffer)
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"Inserts the `TITLE' of file in buffer into the cache."
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(when-let ((titles-cache (plist-get org-roam-cache :titles))
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(title (org-roam--extract-title buffer)))
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(puthash (file-truename (buffer-file-name buffer))
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title
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titles-cache)
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(setq org-roam-cache (plist-put org-roam-cache :titles titles-cache))))
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(defun org-roam--update-cache ()
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"Update `org-roam-cache' for the current buffer file."
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(save-excursion
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(org-roam--clear-cache-for-buffer (current-buffer))
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;; Insert into title cache
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(org-roam--update-cache-title (current-buffer))
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;; Insert new items
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(let ((items (org-roam--parse-content)))
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(dolist (item items)
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(org-roam--insert-item item)))))
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