Class: DiscoverUnusedPartials::PartialWorker

Inherits:
Object
  • Object
show all
Defined in:
lib/discover-unused-partials.rb

Constant Summary collapse

EXT = 
%w(.html.erb .text.erb .pdf.erb .erb .html.haml .text.haml .haml .rhtml .html.slim slim)
@@filename = 
/[a-zA-Z\d_\/]+?/
@@extension = 
/\.\w+/
@@partial = 
/:partial\s*=>\s*|partial:\s*/
@@render = 
/\brender\s*(?:\(\s*)?/

Instance Method Summary collapse

Constructor Details

#initialize(options) ⇒ PartialWorker

Returns a new instance of PartialWorker.



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# File 'lib/discover-unused-partials.rb', line 38

def initialize options
  @options = options
end

Instance Method Details

#check_extension_path(file) ⇒ Object 



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# File 'lib/discover-unused-partials.rb', line 121

def check_extension_path(file)
  "#{file}#{EXT.find{ |e| File.exists? file + e }}"
end

#each_file(root, &block) ⇒ Object 



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# File 'lib/discover-unused-partials.rb', line 125

def each_file(root, &block)
  files = Dir.glob("#{root}/*")
  files.each do |file|
    if File.directory? file
      next if file =~ %r[^app/assets]
      each_file(file) {|file| yield file}
    else
      yield file
    end
  end
end

#existent_partials(root) ⇒ Object 



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# File 'lib/discover-unused-partials.rb', line 42

def existent_partials root
  partials = []
  each_file(root) do |file|
    if file =~ /^.*\/_.*$/
      partials << file.strip
    end
  end

  partials
end

#process_partials(files) ⇒ Object 



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# File 'lib/discover-unused-partials.rb', line 82

def process_partials(files)
  partials = @options['keep'] || []
  dynamic = {}
  files.each do |file|
    File.open(file) do |f|
      f.each do |line|
        line.strip!
        if line =~ %r[(?:#@@partial|#@@render)(['"])/?(#@@filename)#@@extension*\1]
          match = $2
          if match.index("/")

            path = match.split('/')[0...-1].join('/')
            file_name = "_#{match.split('/')[-1]}"

            full_path = "app/views/#{path}/#{file_name}"
          else
            if file =~ /app\/controllers\/(.*)_controller.rb/
              full_path = "app/views/#{$1}/_#{match}"
            else
              full_path = "#{file.split('/')[0...-1].join('/')}/_#{match}"
            end
          end
          partials << check_extension_path(full_path)
        elsif line =~ /#@@partial|#@@render["']/
          if @options["dynamic"] && @options["dynamic"][file]
            partials += @options["dynamic"][file]
          else
            dynamic[file] ||= []
            dynamic[file] << line
          end
        end
      end
    end
  end
  partials.uniq!
  [partials, dynamic]
end

#used_partials(root) ⇒ Object 



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# File 'lib/discover-unused-partials.rb', line 53

def used_partials root
  raise "#{Dir.pwd} does not have '#{root}' directory" unless File.directory? root
  files = []
  each_file(root) do |file|
    files << file
  end
  tree = {}
  level = 1
  existent = existent_partials(root)
  top_dynamic = nil
  loop do
    used, dynamic = process_partials(files)
    break if level > 1 && used.size == tree[level-1][:used].size
    tree[level] = {
      used: used,
    }
    if level == 1
      top_dynamic = dynamic
      tree[level][:unused] = existent - used
    else
      tree[level][:unused] = tree[level-1][:used] - used
    end
    break unless (files - tree[level][:unused]).size < files.size
    files -= tree[level][:unused]
    level += 1
  end
  [tree, top_dynamic]
end