88 lines
3.5 KiB
EmacsLisp
88 lines
3.5 KiB
EmacsLisp
;;; org-index-capture --- dynamic block example -*- lexical-binding: t; -*-
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;;; Blog: https://one-octet.dev/posts/org-mode-dynamic-index.html
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(require 'org)
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(declare-function org-element-map "org-element" (data types fun &optional info first-match no-recursion with-affiliated))
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(declare-function org-element-parse-buffer "org-element" (&optional granularity visible-only keep-deferred))
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(declare-function org-element-property "org-element-ast" (property node))
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(defun org-index-extract-infos (file-path)
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"Extract all information for an index from FILE-PATH."
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(with-temp-buffer
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(insert-file-contents file-path)
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(append
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(org-element-map (org-element-parse-buffer) 'keyword
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(lambda (keyword)
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(list (org-element-property :key keyword)
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(org-element-property :value keyword))))
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(list (list "FILE-PATH" file-path)
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(list "FILE-FULL-PATH" (expand-file-name file-path))))))
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(defun org-index-list-files-path (directory)
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"Get the DIRECTORY based names of all `.org' files in DIRECTORY."
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(mapcar (lambda (file-name)
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(file-name-concat directory file-name))
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(directory-files directory nil ".org$")))
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(defun org-index-sort-file-alists (alists)
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"Sort a list of `.org' information alists by date."
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(sort alists (lambda (file-a file-b)
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(string> (cadr (assoc "DATE" file-a))
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(cadr (assoc "DATE" file-b))))))
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(defun org-index-spec-make (alist)
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"Call `format-spec-make' using an `.org' file ALIST."
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(let ((author (or (cadr (assoc "AUTHOR" alist)) "NO-AUTHOR"))
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(creator (or (cadr (assoc "CREATOR" alist)) "NO-CREATOR"))
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(date (or (cadr (assoc "DATE" alist)) "1999.12.31"))
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(description (or (cadr (assoc "DESCRIPTION" alist)) "NO-DESCRIPTION"))
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(file-full-path (cadr (assoc "FILE-FULL-PATH" alist)))
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(file-path (cadr (assoc "FILE-PATH" alist)))
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(language (or (cadr (assoc "LANGUAGE" alist)) "NO-LANGUAGE"))
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(options (or (cadr (assoc "OPTIONS" alist)) "NO-OPTIONS"))
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(title (or (cadr (assoc "TITLE" alist)) "NO-TITLE")))
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(format-spec-make ?a author ?c creator
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?d date ?D description
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?l language ?o options
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?P file-full-path ?p file-path
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?t title)))
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(defun org-dblock-write:index (params)
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"Write a directory index."
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(let ((directory (or (plist-get params :directory )
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(file-name-directory (buffer-file-name))))
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(sort-recent (plist-get params :sort-recent))
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(fmt (or (plist-get params :format) "- %d: [[file:%p][%t]]"))
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(alists nil))
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(if sort-recent
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(setq alists (org-index-sort-file-alists
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(mapcar
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'org-index-extract-infos
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(org-index-list-files-path directory))))
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(setq alists (mapcar
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'org-index-extract-infos
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(org-index-list-files-path directory))))
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(mapcar
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(lambda (alist)
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(insert (format-spec fmt (org-index-spec-make alist)) "\n"))
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alists)))
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;;;###autoload
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(defun org-index-insert-dblock (directory)
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"Create a dynamic block capturing a directory index."
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(interactive
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(list (string-replace
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(file-name-directory (buffer-file-name))
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""
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(expand-file-name (read-directory-name "Directory to index: ")))))
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(org-create-dblock
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(list :name "index"
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:directory directory)))
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(org-dynamic-block-define "index" 'org-index-insert-dblock)
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(provide 'org-index-capture)
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;;; org-index-capture.el ends here
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