mirror of
https://github.com/org-roam/org-roam
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692 lines
28 KiB
EmacsLisp
692 lines
28 KiB
EmacsLisp
;;; org-roam-mode.el --- Major mode for special Org-roam buffers -*- lexical-binding: t -*-
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;; Copyright © 2020-2021 Jethro Kuan <jethrokuan95@gmail.com>
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;; Author: Jethro Kuan <jethrokuan95@gmail.com>
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;; URL: https://github.com/org-roam/org-roam
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;; Keywords: org-mode, roam, convenience
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;; Version: 2.1.0
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;; Package-Requires: ((emacs "26.1") (dash "2.13") (f "0.17.2") (org "9.4") (emacsql "3.0.0") (emacsql-sqlite "1.0.0") (magit-section "2.90.1"))
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;; This file is NOT part of GNU Emacs.
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;; This program is free software; you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation; either version 3, or (at your option)
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;; any later version.
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;;
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;; This program is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;;
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs; see the file COPYING. If not, write to the
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;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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;; Boston, MA 02110-1301, USA.
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;;; Commentary:
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;;
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;; This module implements `org-roam-mode', which is a major mode that used by
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;; special Org-roam buffers to display various content in a section-like manner
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;; about the nodes and relevant to them information (e.g. backlinks) with which
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;; the user can interact with.
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;;
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;;; Code:
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(require 'org-roam)
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;;;; Declarations
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(defvar org-ref-buffer-hacked)
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;;; Options
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(defcustom org-roam-mode-section-functions (list #'org-roam-backlinks-section
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#'org-roam-reflinks-section)
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"Functions that insert sections in the `org-roam-mode' based buffers.
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Each function is called with one argument, which is an
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`org-roam-node' for which the buffer will be constructed for.
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Normally this node is `org-roam-buffer-current-node'."
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:group 'org-roam
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:type 'hook)
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;;; Faces
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(defface org-roam-header-line
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`((((class color) (background light))
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,@(and (>= emacs-major-version 27) '(:extend t))
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:foreground "DarkGoldenrod4"
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:weight bold)
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(((class color) (background dark))
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,@(and (>= emacs-major-version 27) '(:extend t))
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:foreground "LightGoldenrod2"
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:weight bold))
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"Face for the `header-line' in some Org-roam modes."
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:group 'org-roam-faces)
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(defface org-roam-title
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'((t :weight bold))
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"Face for Org-roam titles."
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:group 'org-roam-faces)
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(defface org-roam-olp
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'((((class color) (background light)) :foreground "grey60")
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(((class color) (background dark)) :foreground "grey40"))
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"Face for the OLP of the node."
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:group 'org-roam-faces)
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(defface org-roam-preview-heading
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`((((class color) (background light))
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,@(and (>= emacs-major-version 27) '(:extend t))
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:background "grey80"
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:foreground "grey30")
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(((class color) (background dark))
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,@(and (>= emacs-major-version 27) '(:extend t))
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:background "grey25"
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:foreground "grey70"))
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"Face for preview headings."
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:group 'org-roam-faces)
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(defface org-roam-preview-heading-highlight
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`((((class color) (background light))
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,@(and (>= emacs-major-version 27) '(:extend t))
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:background "grey75"
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:foreground "grey30")
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(((class color) (background dark))
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,@(and (>= emacs-major-version 27) '(:extend t))
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:background "grey35"
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:foreground "grey70"))
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"Face for current preview headings."
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:group 'org-roam-faces)
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(defface org-roam-preview-heading-selection
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`((((class color) (background light))
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,@(and (>= emacs-major-version 27) '(:extend t))
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:inherit org-roam-preview-heading-highlight
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:foreground "salmon4")
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(((class color) (background dark))
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,@(and (>= emacs-major-version 27) '(:extend t))
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:inherit org-roam-preview-heading-highlight
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:foreground "LightSalmon3"))
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"Face for selected preview headings."
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:group 'org-roam-faces)
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(defface org-roam-preview-region
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`((t :inherit bold
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,@(and (>= emacs-major-version 27)
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(list :extend (ignore-errors (face-attribute 'region :extend))))))
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"Face used by `org-roam-highlight-preview-region-using-face'.
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This face is overlaid over text that uses other hunk faces,
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and those normally set the foreground and background colors.
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The `:foreground' and especially the `:background' properties
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should be avoided here. Setting the latter would cause the
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loss of information. Good properties to set here are `:weight'
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and `:slant'."
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:group 'org-roam-faces)
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(defface org-roam-dim
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'((((class color) (background light)) :foreground "grey60")
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(((class color) (background dark)) :foreground "grey40"))
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"Face for the dimmer part of the widgets."
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:group 'org-roam-faces)
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;;; Major mode
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(defvar org-roam-mode-map
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(let ((map (make-sparse-keymap)))
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(set-keymap-parent map magit-section-mode-map)
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(define-key map [C-return] 'org-roam-buffer-visit-thing)
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(define-key map (kbd "C-m") 'org-roam-buffer-visit-thing)
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(define-key map [remap revert-buffer] 'org-roam-buffer-refresh)
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map)
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"Parent keymap for all keymaps of modes derived from `org-roam-mode'.")
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(define-derived-mode org-roam-mode magit-section-mode "Org-roam"
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"Major mode for displaying relevant information about Org-roam nodes.
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This mode is used by special Org-roam buffers, such as persistent
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`org-roam-buffer' and dedicated Org-roam buffers
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\(`org-roam-buffer-display-dedicated'), which render the
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information in a section-like manner (see
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`org-roam-mode-section-functions'), with which the user can
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interact with."
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:group 'org-roam
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(face-remap-add-relative 'header-line 'org-roam-header-line))
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;;; Buffers
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(defvar org-roam-buffer-current-node nil
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"The node for which an `org-roam-mode' based buffer displays its contents.
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This set both, locally and globally. Normally the local value is
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only set in the `org-roam-mode' based buffers, while the global
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value shows the current node in the persistent `org-roam-buffer'.")
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(put 'org-roam-buffer-current-node 'permanent-local t)
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(defvar org-roam-buffer-current-directory nil
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"The `org-roam-directory' value of `org-roam-buffer-current-node'.
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Set both, locally and globally in the same way as `org-roam-buffer-current-node'.")
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(put 'org-roam-buffer-current-directory 'permanent-local t)
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;;;; Library
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(defun org-roam-buffer-visit-thing ()
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"This is a placeholder command.
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Where applicable, section-specific keymaps bind another command
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which visits the thing at point."
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(interactive)
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(user-error "There is no thing at point that could be visited"))
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(defun org-roam-buffer-file-at-point (&optional assert)
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"Return the file at point in the current `org-roam-mode' based buffer.
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If ASSERT, throw an error."
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(if-let ((file (magit-section-case
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(org-roam-node-section (org-roam-node-file (oref it node)))
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(org-roam-grep-section (oref it file))
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(org-roam-preview-section (oref it file))
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(t (cl-assert (derived-mode-p 'org-roam-mode))))))
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file
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(when assert
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(user-error "No file at point"))))
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(defun org-roam-buffer-refresh ()
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"Refresh the contents of the currently selected Org-roam buffer."
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(interactive)
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(cl-assert (derived-mode-p 'org-roam-mode))
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(save-excursion (org-roam-buffer-render-contents)))
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(defun org-roam-buffer-render-contents ()
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"Recompute and render the contents of an Org-roam buffer.
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Assumes that the current buffer is an `org-roam-mode' based
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buffer."
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(let ((inhibit-read-only t))
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(erase-buffer)
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(org-roam-mode)
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(setq-local default-directory org-roam-buffer-current-directory)
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(setq-local org-roam-directory org-roam-buffer-current-directory)
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(org-roam-buffer-set-header-line-format
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(org-roam-node-title org-roam-buffer-current-node))
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(magit-insert-section (org-roam)
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(magit-insert-heading)
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(run-hook-with-args 'org-roam-mode-section-functions org-roam-buffer-current-node))
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(goto-char 0)))
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(defun org-roam-buffer-set-header-line-format (string)
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"Set the header-line using STRING.
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If the `face' property of any part of STRING is already set, then
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that takes precedence. Also pad the left side of STRING so that
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it aligns with the text area."
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(setq-local header-line-format
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(concat (propertize " " 'display '(space :align-to 0))
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string)))
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;;;; Dedicated buffer
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;;;###autoload
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(defun org-roam-buffer-display-dedicated (node)
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"Launch NODE dedicated Org-roam buffer.
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Unlike the persistent `org-roam-buffer', the contents of this
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buffer won't be automatically changed and will be held in place.
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In interactive calls prompt to select NODE, unless called with
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`universal-argument', in which case NODE will be set to
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`org-roam-node-at-point'."
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(interactive
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(list (if current-prefix-arg
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(org-roam-node-at-point 'assert)
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(org-roam-node-read nil nil nil 'require-match))))
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(let ((buffer (get-buffer-create (org-roam-buffer--dedicated-name node))))
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(with-current-buffer buffer
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(setq-local org-roam-buffer-current-node node)
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(setq-local org-roam-buffer-current-directory org-roam-directory)
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(org-roam-buffer-render-contents))
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(display-buffer buffer)))
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(defun org-roam-buffer--dedicated-name (node)
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"Construct buffer name for NODE dedicated Org-roam buffer."
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(let ((title (org-roam-node-title node))
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(filename (file-relative-name (org-roam-node-file node) org-roam-directory)))
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(format "*org-roam: %s<%s>*" title filename)))
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(defun org-roam-buffer-dedicated-p (&optional buffer)
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"Return t if an Org-roam BUFFER is a node dedicated one.
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See `org-roam-buffer-display-dedicated' for more details.
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If BUFFER is nil, default it to `current-buffer'."
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(or buffer (setq buffer (current-buffer)))
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(string-match-p (concat "^" (regexp-quote "*org-roam: "))
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(buffer-name buffer)))
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;;;; Persistent buffer
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(defvar org-roam-buffer "*org-roam*"
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"The persistent Org-roam buffer name. Must be surround with \"*\".
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The content inside of this buffer will be automatically updated
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to the nearest node at point that comes from the current buffer.
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To toggle its display use `org-roam-buffer-toggle' command.")
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(defun org-roam-buffer-toggle ()
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"Toggle display of the persistent `org-roam-buffer'."
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(interactive)
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(pcase (org-roam-buffer--visibility)
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('visible
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(progn
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(delete-window (get-buffer-window org-roam-buffer))
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(remove-hook 'post-command-hook #'org-roam-buffer--redisplay-h)))
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((or 'exists 'none)
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(progn
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(display-buffer (get-buffer-create org-roam-buffer))
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(org-roam-buffer-persistent-redisplay)))))
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(define-inline org-roam-buffer--visibility ()
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"Return the current visibility state of the persistent `org-roam-buffer'.
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Valid states are 'visible, 'exists and 'none."
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(declare (side-effect-free t))
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(inline-quote
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(cond
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((get-buffer-window org-roam-buffer) 'visible)
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((get-buffer org-roam-buffer) 'exists)
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(t 'none))))
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(defun org-roam-buffer-persistent-redisplay ()
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"Recompute contents of the persistent `org-roam-buffer'.
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Has no effect when there's no `org-roam-node-at-point'."
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(when-let ((node (org-roam-node-at-point)))
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(unless (equal node org-roam-buffer-current-node)
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(setq org-roam-buffer-current-node node
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org-roam-buffer-current-directory org-roam-directory)
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(with-current-buffer (get-buffer-create org-roam-buffer)
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(org-roam-buffer-render-contents)
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(add-hook 'kill-buffer-hook #'org-roam-buffer--persistent-cleanup-h nil t)))))
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(defun org-roam-buffer--persistent-cleanup-h ()
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"Clean-up global state thats dedicated for the persistent `org-roam-buffer'."
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(setq-default org-roam-buffer-current-node nil
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org-roam-buffer-current-directory nil))
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(add-hook 'org-roam-find-file-hook #'org-roam-buffer--setup-redisplay-h)
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(defun org-roam-buffer--setup-redisplay-h ()
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"Setup automatic redisplay of the persistent `org-roam-buffer'."
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(add-hook 'post-command-hook #'org-roam-buffer--redisplay-h nil t))
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(defun org-roam-buffer--redisplay-h ()
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"Reconstruct the persistent `org-roam-buffer'.
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This needs to be quick or infrequent, because this designed to
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run at `post-command-hook'."
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(and (get-buffer-window org-roam-buffer)
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(org-roam-buffer-persistent-redisplay)))
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;;; Sections
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;;;; Node
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(defvar org-roam-node-map
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(let ((map (make-sparse-keymap)))
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(set-keymap-parent map org-roam-mode-map)
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(define-key map [remap org-roam-buffer-visit-thing] 'org-roam-node-visit)
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map)
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"Keymap for `org-roam-node-section's.")
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(defclass org-roam-node-section (magit-section)
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((keymap :initform 'org-roam-node-map)
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(node :initform nil))
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"A `magit-section' used by `org-roam-mode' to outline NODE in its own heading.")
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(cl-defun org-roam-node-insert-section (&key source-node point properties)
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"Insert section for a link from SOURCE-NODE to some other node.
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The other node is normally `org-roam-buffer-current-node'.
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SOURCE-NODE is an `org-roam-node' that links or references with
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the other node.
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POINT is a character position where the link is located in
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SOURCE-NODE's file.
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PROPERTIES (a plist) contains additional information about the
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link.
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Despite the name, this function actually inserts 2 sections at
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the same time:
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1. `org-roam-node-section' for a heading that describes
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SOURCE-NODE. Acts as a parent section of the following one.
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2. `org-roam-preview-section' for a preview content that comes
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from SOURCE-NODE's file for the link (that references the
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other node) at POINT. Acts a child section of the previous
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one."
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(magit-insert-section section (org-roam-node-section)
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(let ((outline (if-let ((outline (plist-get properties :outline)))
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(mapconcat #'org-link-display-format outline " > ")
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"Top")))
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(insert (concat (propertize (org-roam-node-title source-node)
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'font-lock-face 'org-roam-title)
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(format " (%s)"
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(propertize outline 'font-lock-face 'org-roam-olp)))))
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(magit-insert-heading)
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(oset section node source-node)
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(magit-insert-section section (org-roam-preview-section)
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(insert (org-roam-fontify-like-in-org-mode
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(org-roam-preview-get-contents (org-roam-node-file source-node) point))
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"\n")
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(oset section file (org-roam-node-file source-node))
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(oset section point point)
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(insert ?\n))))
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;;;; Preview
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(defvar org-roam-preview-map
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(let ((map (make-sparse-keymap)))
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(set-keymap-parent map org-roam-mode-map)
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(define-key map [remap org-roam-buffer-visit-thing] 'org-roam-preview-visit)
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map)
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"Keymap for `org-roam-preview-section's.")
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(defclass org-roam-preview-section (magit-section)
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((keymap :initform 'org-roam-preview-map)
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(file :initform nil)
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(point :initform nil))
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"A `magit-section' used by `org-roam-mode' to contain preview content.
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The preview content comes from FILE, and the link as at POINT.")
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(defun org-roam-preview-visit (file point &optional other-window)
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"Visit FILE at POINT and return the visited buffer.
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With OTHER-WINDOW non-nil do so in another window.
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In interactive calls OTHER-WINDOW is set with
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`universal-argument'."
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(interactive (list (org-roam-buffer-file-at-point 'assert)
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(oref (magit-current-section) point)
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current-prefix-arg))
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(let ((buf (find-file-noselect file))
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(display-buffer-fn (if other-window
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#'switch-to-buffer-other-window
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#'pop-to-buffer-same-window)))
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(funcall display-buffer-fn buf)
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(with-current-buffer buf
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(widen)
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(goto-char point))
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(when (org-invisible-p) (org-show-context))
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buf))
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(defun org-roam-preview-get-contents (file point)
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"Get preview content for FILE at POINT."
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(save-excursion
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(org-roam-with-temp-buffer file
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(goto-char point)
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(let ((elem (org-element-at-point)))
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;; We want the parent element always
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(while (org-element-property :parent elem)
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(setq elem (org-element-property :parent elem)))
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(pcase (car elem)
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('headline ; show subtree
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(org-roam-preview-get-entry-text (point-marker) most-positive-fixnum))
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(_
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(let ((begin (org-element-property :begin elem))
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(end (org-element-property :end elem)))
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(or (string-trim (buffer-substring-no-properties begin end))
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(org-element-property :raw-value elem)))))))))
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(defun org-roam-preview-get-entry-text (marker n-lines &optional indent)
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"Extract entry text from MARKER, at most N-LINES lines.
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This will ignore drawers etc, just get the text.
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If INDENT is given, prefix every line with this string."
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(let (txt ind)
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(save-excursion
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(with-current-buffer (marker-buffer marker)
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|
(if (not (derived-mode-p 'org-mode))
|
|
(setq txt "")
|
|
(org-with-wide-buffer
|
|
(goto-char marker)
|
|
(end-of-line 1)
|
|
(setq txt (buffer-substring
|
|
(min (1+ (point)) (point-max))
|
|
(progn (outline-next-heading) (point))))
|
|
(with-temp-buffer
|
|
(insert txt)
|
|
(goto-char (point-min))
|
|
(while (org-activate-links (point-max))
|
|
(goto-char (match-end 0)))
|
|
(goto-char (point-min))
|
|
(while (re-search-forward org-link-bracket-re (point-max) t)
|
|
(set-text-properties (match-beginning 0) (match-end 0)
|
|
nil))
|
|
(goto-char (point-min))
|
|
(while (re-search-forward org-drawer-regexp nil t)
|
|
(delete-region
|
|
(match-beginning 0)
|
|
(progn (re-search-forward
|
|
"^[ \t]*:END:.*\n?" nil 'move)
|
|
(point))))
|
|
(goto-char (point-min))
|
|
(goto-char (point-max))
|
|
(skip-chars-backward " \t\n")
|
|
(when (looking-at "[ \t\n]+\\'") (replace-match ""))
|
|
|
|
;; find and remove min common indentation
|
|
(goto-char (point-min))
|
|
(untabify (point-min) (point-max))
|
|
(setq ind (current-indentation))
|
|
(while (not (eobp))
|
|
(unless (looking-at "[ \t]*$")
|
|
(setq ind (min ind (current-indentation))))
|
|
(beginning-of-line 2))
|
|
(goto-char (point-min))
|
|
(while (not (eobp))
|
|
(unless (looking-at "[ \t]*$")
|
|
(move-to-column ind)
|
|
(delete-region (point-at-bol) (point)))
|
|
(beginning-of-line 2))
|
|
(goto-char (point-min))
|
|
(when indent
|
|
(while (and (not (eobp)) (re-search-forward "^" nil t))
|
|
(replace-match indent t t)))
|
|
(goto-char (point-min))
|
|
(while (looking-at "[ \t]*\n") (replace-match ""))
|
|
(goto-char (point-max))
|
|
(when (> (org-current-line)
|
|
n-lines)
|
|
(org-goto-line (1+ n-lines))
|
|
(backward-char 1))
|
|
(setq txt (buffer-substring (point-min) (point))))))))
|
|
txt))
|
|
|
|
;;;; Backlinks
|
|
(cl-defstruct (org-roam-backlink (:constructor org-roam-backlink-create)
|
|
(:copier nil))
|
|
source-node target-node
|
|
point properties)
|
|
|
|
(cl-defmethod org-roam-populate ((backlink org-roam-backlink))
|
|
"Populate BACKLINK from database."
|
|
(setf (org-roam-backlink-source-node backlink)
|
|
(org-roam-populate (org-roam-backlink-source-node backlink))
|
|
(org-roam-backlink-target-node backlink)
|
|
(org-roam-populate (org-roam-backlink-target-node backlink)))
|
|
backlink)
|
|
|
|
(defun org-roam-backlinks-get (node)
|
|
"Return the backlinks for NODE."
|
|
(let ((backlinks (org-roam-db-query
|
|
[:select [source dest pos properties]
|
|
:from links
|
|
:where (= dest $s1)
|
|
:and (= type "id")]
|
|
(org-roam-node-id node))))
|
|
(cl-loop for backlink in backlinks
|
|
collect (pcase-let ((`(,source-id ,dest-id ,pos ,properties) backlink))
|
|
(org-roam-populate
|
|
(org-roam-backlink-create
|
|
:source-node (org-roam-node-create :id source-id)
|
|
:target-node (org-roam-node-create :id dest-id)
|
|
:point pos
|
|
:properties properties))))))
|
|
|
|
(defun org-roam-backlinks-sort (a b)
|
|
"Default sorting function for backlinks A and B.
|
|
Sorts by title."
|
|
(string< (org-roam-node-title (org-roam-backlink-source-node a))
|
|
(org-roam-node-title (org-roam-backlink-source-node b))))
|
|
|
|
(defun org-roam-backlinks-section (node)
|
|
"The backlinks section for NODE."
|
|
(when-let ((backlinks (seq-sort #'org-roam-backlinks-sort (org-roam-backlinks-get node))))
|
|
(magit-insert-section (org-roam-backlinks)
|
|
(magit-insert-heading "Backlinks:")
|
|
(dolist (backlink backlinks)
|
|
(org-roam-node-insert-section
|
|
:source-node (org-roam-backlink-source-node backlink)
|
|
:point (org-roam-backlink-point backlink)
|
|
:properties (org-roam-backlink-properties backlink)))
|
|
(insert ?\n))))
|
|
|
|
;;;; Reflinks
|
|
(cl-defstruct (org-roam-reflink (:constructor org-roam-reflink-create)
|
|
(:copier nil))
|
|
source-node ref
|
|
point properties)
|
|
|
|
(cl-defmethod org-roam-populate ((reflink org-roam-reflink))
|
|
"Populate REFLINK from database."
|
|
(setf (org-roam-reflink-source-node reflink)
|
|
(org-roam-populate (org-roam-reflink-source-node reflink)))
|
|
reflink)
|
|
|
|
(defun org-roam-reflinks-get (node)
|
|
"Return the reflinks for NODE."
|
|
(let ((refs (org-roam-db-query [:select [ref] :from refs
|
|
:where (= node-id $s1)]
|
|
(org-roam-node-id node)))
|
|
links)
|
|
(pcase-dolist (`(,ref) refs)
|
|
(pcase-dolist (`(,source-id ,pos ,properties) (org-roam-db-query
|
|
[:select [source pos properties]
|
|
:from links
|
|
:where (= dest $s1)]
|
|
ref))
|
|
(push (org-roam-populate
|
|
(org-roam-reflink-create
|
|
:source-node (org-roam-node-create :id source-id)
|
|
:ref ref
|
|
:point pos
|
|
:properties properties)) links)))
|
|
links))
|
|
|
|
(defun org-roam-reflinks-sort (a b)
|
|
"Default sorting function for reflinks A and B.
|
|
Sorts by title."
|
|
(string< (org-roam-node-title (org-roam-reflink-source-node a))
|
|
(org-roam-node-title (org-roam-reflink-source-node b))))
|
|
|
|
(defun org-roam-reflinks-section (node)
|
|
"The reflinks section for NODE."
|
|
(when (org-roam-node-refs node)
|
|
(let* ((reflinks (seq-sort #'org-roam-reflinks-sort (org-roam-reflinks-get node))))
|
|
(magit-insert-section (org-roam-reflinks)
|
|
(magit-insert-heading "Reflinks:")
|
|
(dolist (reflink reflinks)
|
|
(org-roam-node-insert-section
|
|
:source-node (org-roam-reflink-source-node reflink)
|
|
:point (org-roam-reflink-point reflink)
|
|
:properties (org-roam-reflink-properties reflink)))
|
|
(insert ?\n)))))
|
|
|
|
;;;; Grep
|
|
(defvar org-roam-grep-map
|
|
(let ((map (make-sparse-keymap)))
|
|
(set-keymap-parent map org-roam-mode-map)
|
|
(define-key map [remap org-roam-buffer-visit-thing] 'org-roam-grep-visit)
|
|
map)
|
|
"Keymap for Org-roam grep result sections.")
|
|
|
|
(defclass org-roam-grep-section (magit-section)
|
|
((keymap :initform 'org-roam-grep-map)
|
|
(file :initform nil)
|
|
(row :initform nil)
|
|
(col :initform nil))
|
|
"A `magit-section' used by `org-roam-mode' to contain grep output.")
|
|
|
|
(defun org-roam-grep-visit (file &optional other-window row col)
|
|
"Visit FILE at row ROW (if any) and column COL (if any). Return the buffer.
|
|
With OTHER-WINDOW non-nil (in interactive calls set with
|
|
`universal-argument') display the buffer in another window
|
|
instead."
|
|
(interactive (list (org-roam-buffer-file-at-point t)
|
|
current-prefix-arg
|
|
(oref (magit-current-section) row)
|
|
(oref (magit-current-section) col)))
|
|
(let ((buf (find-file-noselect file))
|
|
(display-buffer-fn (if other-window
|
|
#'switch-to-buffer-other-window
|
|
#'pop-to-buffer-same-window)))
|
|
(funcall display-buffer-fn buf)
|
|
(with-current-buffer buf
|
|
(widen)
|
|
(goto-char (point-min))
|
|
(when row
|
|
(forward-line (1- row)))
|
|
(when col
|
|
(forward-char (1- col))))
|
|
(when (org-invisible-p) (org-show-context))
|
|
buf))
|
|
|
|
;;;; Unlinked references
|
|
(defvar org-roam-unlinked-references-result-re
|
|
(rx (group (one-or-more anything))
|
|
":"
|
|
(group (one-or-more digit))
|
|
":"
|
|
(group (one-or-more digit))
|
|
":"
|
|
(group (zero-or-more anything)))
|
|
"Regex for the return result of a ripgrep query.")
|
|
|
|
(defun org-roam-unlinked-references-preview-line (file row)
|
|
"Return the preview line from FILE.
|
|
This is the ROW within FILE."
|
|
(with-temp-buffer
|
|
(insert-file-contents file)
|
|
(forward-line (1- row))
|
|
(buffer-substring-no-properties
|
|
(save-excursion
|
|
(beginning-of-line)
|
|
(point))
|
|
(save-excursion
|
|
(end-of-line)
|
|
(point)))))
|
|
|
|
(defun org-roam-unlinked-references-section (node)
|
|
"The unlinked references section for NODE.
|
|
References from FILE are excluded."
|
|
(when (and (executable-find "rg")
|
|
(not (string-match "PCRE2 is not available"
|
|
(shell-command-to-string "rg --pcre2-version"))))
|
|
(let* ((titles (cons (org-roam-node-title node)
|
|
(org-roam-node-aliases node)))
|
|
(rg-command (concat "rg -o --vimgrep -P -i "
|
|
(mapconcat (lambda (glob) (concat "-g " glob))
|
|
(org-roam--list-files-search-globs org-roam-file-extensions)
|
|
" ")
|
|
(format " '\\[([^[]]++|(?R))*\\]%s' "
|
|
(mapconcat (lambda (title)
|
|
(format "|(\\b%s\\b)" (shell-quote-argument title)))
|
|
titles ""))
|
|
org-roam-directory))
|
|
(results (split-string (shell-command-to-string rg-command) "\n"))
|
|
f row col match)
|
|
(magit-insert-section (unlinked-references)
|
|
(magit-insert-heading "Unlinked References:")
|
|
(dolist (line results)
|
|
(save-match-data
|
|
(when (string-match org-roam-unlinked-references-result-re line)
|
|
(setq f (match-string 1 line)
|
|
row (string-to-number (match-string 2 line))
|
|
col (string-to-number (match-string 3 line))
|
|
match (match-string 4 line))
|
|
(when (and match
|
|
(not (f-equal-p (org-roam-node-file node) f))
|
|
(member (downcase match) (mapcar #'downcase titles)))
|
|
(magit-insert-section section (org-roam-grep-section)
|
|
(oset section file f)
|
|
(oset section row row)
|
|
(oset section col col)
|
|
(insert (propertize (format "%s:%s:%s"
|
|
(truncate-string-to-width (file-name-base f) 15 nil nil "...")
|
|
row col) 'font-lock-face 'org-roam-dim)
|
|
" "
|
|
(org-roam-fontify-like-in-org-mode
|
|
(org-roam-unlinked-references-preview-line f row))
|
|
"\n"))))))
|
|
(insert ?\n)))))
|
|
|
|
(provide 'org-roam-mode)
|
|
;;; org-roam-mode.el ends here
|