Script for generating indexes for Dendron

i.rb

require 'optparse'
require 'find'

def note(path, files)
  return %Q|---
title: #{path} Index
desc: ''
updated: #{Time.now.to_i * 1000}
created: #{Time.now.to_i * 1000}
---
#{files if !files.to_s.empty?}
|
end

BASE = "<NOTES PATH>"

def clean(x)
  x.gsub("[", "").gsub("]", "").gsub("((ref: ", "").gsub("))", "")
end

def make_index(path, deep)
  puts "Creating #{path}..."
  begin
    existing = File.read(BASE + "#{path}index.md").split("\n")
    front_matter_delimiter = 0
    existing.each_with_index do |line, index|
      if line == '---'
        front_matter_delimiter = index
        if index > 0
          break
        end
      end
    end
    existing = existing[(front_matter_delimiter+1)..-1]
    #.select{|x| x[0..1] == '[['}.map{|x| x.gsub("[", "").gsub("]", "")}
  rescue
    existing = []
  end

  if deep
    files = Find.find(BASE + "#{path}").to_a.map{|x| x.gsub("#{BASE}#{path}", "")}.select{|x| !x.include? "index.md"}.sort
  else
    files = Dir[BASE + "#{path}*.md"].map{|x| x.gsub("#{BASE}#{path}", "")}.select{|x| !x.include? "index.md"}.sort
  end
  existing = existing.select{|x| !x.include? '[[' or files.include?(clean(x))}
  new_files = files - existing.map{|x| clean(x)}
  puts files
  puts "---"
  puts existing
  puts "---"
  puts new_files
  files = (existing + (new_files).map{|x| "[[#{x.gsub("#{path}", "")}]]"}.sort).join("\n")

  File.open("#{BASE}#{path}index.md", 'w') do |f|
    f.write note(path, files)
  end
end

def update_all(deep)
  files = Dir[BASE + "*/index.md"].map{|x| x.gsub(BASE, "").gsub("index.md", "")}.each do |index|
    make_index(index, deep)
  end
end

deep = false
path = nil

OptionParser.new do |opts|
  opts.banner = "Usage: d.rb [options]"

  opts.on("-pPATH", "--path=PATH", "Path") do |v|
    path = v
  end

  opts.on("-d", "--deep", "Deep") do |v|
    deep = true
  end

  opts.on("-h", "--help", "Prints this help") do
    puts opts
    exit
  end
end.parse!

if !path.empty?
  if path == 'update'
    update_all(deep)
  else
    path = path + "/" if path[-1] != '/'
    make_index(path, deep)
  end
end