irc-jul-14.rb

require "yaml/store"

class CLI
  def initialize(argv, store = YAML::Store.new("tags.store"))
    @argv = argv.dup
    @store = store
  end

  def run
    case @argv.shift
    when "add"
      file = @argv.shift
      tags = @argv
      @store.transaction do
        @store[file] ||= []
        @store[file].concat(tags)
      end
      puts "Tags added"
      exit
    when "list"
      @store.transaction do
        pp(@store.keys.flat_map do |key|
          @store[key]
        end)
      end
    else
      abort <<~EOM
        Unknown command
    
        Usage: #{$0} [cmd]
          add [file] [tags]
          list
      EOM
    end
  end
end

if $0 == __FILE__
  CLI.new(ARGV).run
end

$ cat tags.store
---
foobar:
- baz
- bar