d22fcbef35
One of the breaking errors that I fixed in my install of this great repo was that all links generated by the ruby script didn't take into account the baseurl specified in the config file. This ruby file corrects the error, although in the paths it might add one '/' too many. This hasn't caused me any issues, but should be considered.
107 lines
3.9 KiB
Ruby
107 lines
3.9 KiB
Ruby
# frozen_string_literal: true
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class BidirectionalLinksGenerator < Jekyll::Generator
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def generate(site)
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graph_nodes = []
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graph_edges = []
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all_notes = site.collections['notes'].docs
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all_pages = site.pages
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all_docs = all_notes + all_pages
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link_extension = !!site.config["use_html_extension"] ? '.html' : ''
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# Convert all Wiki/Roam-style double-bracket link syntax to plain HTML
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# anchor tag elements (<a>) with "internal-link" CSS class
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all_docs.each do |current_note|
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all_docs.each do |note_potentially_linked_to|
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title_from_filename = File.basename(
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note_potentially_linked_to.basename,
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File.extname(note_potentially_linked_to.basename)
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).gsub('_', ' ').gsub('-', ' ').capitalize
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# Replace double-bracketed links with label using note title
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# [[A note about cats|this is a link to the note about cats]]
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current_note.content = current_note.content.gsub(
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/\[\[#{title_from_filename}\|(.+?)(?=\])\]\]/i,
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"<a class='internal-link' href='#{site.baseurl}#{note_potentially_linked_to.url}#{link_extension}'>\\1</a>"
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)
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# Replace double-bracketed links with label using note filename
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# [[cats|this is a link to the note about cats]]
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current_note.content = current_note.content.gsub(
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/\[\[#{note_potentially_linked_to.data['title']}\|(.+?)(?=\])\]\]/i,
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"<a class='internal-link' href='#{site.baseurl}#{note_potentially_linked_to.url}#{link_extension}'>\\1</a>"
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)
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# Replace double-bracketed links using note title
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# [[a note about cats]]
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current_note.content = current_note.content.gsub(
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/\[\[(#{note_potentially_linked_to.data['title']})\]\]/i,
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"<a class='internal-link' href='#{site.baseurl}#{note_potentially_linked_to.url}#{link_extension}'>\\1</a>"
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)
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# Replace double-bracketed links using note filename
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# [[cats]]
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current_note.content = current_note.content.gsub(
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/\[\[(#{title_from_filename})\]\]/i,
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"<a class='internal-link' href='#{site.baseurl}#{note_potentially_linked_to.url}#{link_extension}'>\\1</a>"
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)
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end
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# At this point, all remaining double-bracket-wrapped words are
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# pointing to non-existing pages, so let's turn them into disabled
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# links by greying them out and changing the cursor
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current_note.content = current_note.content.gsub(
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/\[\[(.*)\]\]/i, # match on the remaining double-bracket links
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<<~HTML.chomp # replace with this HTML (\\1 is what was inside the brackets)
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<span title='There is no note that matches this link.' class='invalid-link'>
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<span class='invalid-link-brackets'>[[</span>
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\\1
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<span class='invalid-link-brackets'>]]</span></span>
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HTML
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)
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end
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# Identify note backlinks and add them to each note
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all_notes.each do |current_note|
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# Nodes: Jekyll
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notes_linking_to_current_note = all_notes.filter do |e|
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e.content.include?(current_note.url)
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end
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# Nodes: Graph
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graph_nodes << {
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id: note_id_from_note(current_note),
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path: "#{site.baseurl}#{current_note.url}#{link_extension}",
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label: current_note.data['title'],
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} unless current_note.path.include?('_notes/index.html')
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# Edges: Jekyll
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current_note.data['backlinks'] = notes_linking_to_current_note
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# Edges: Graph
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notes_linking_to_current_note.each do |n|
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graph_edges << {
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source: note_id_from_note(n),
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target: note_id_from_note(current_note),
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}
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end
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end
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File.write('_includes/notes_graph.json', JSON.dump({
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edges: graph_edges,
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nodes: graph_nodes,
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}))
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end
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def note_id_from_note(note)
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note.data['title']
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.dup
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.gsub(/\W+/, ' ')
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.delete(' ')
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.to_i(36)
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.to_s
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end
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end
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