Class: Command::Diff

Inherits:
CommandBase show all
Defined in:
lib/command/diff.rb

Instance Attribute Summary

Attributes inherited from CommandBase

#stream_io

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from CommandBase

#disable_logging, #display_help!, execute!, #execute!, #force_change_settings_function, help, #hook_call, #load_local_settings, #tagname_to_ids

Constructor Details

#initialize ⇒ Diff

Returns a new instance of Diff.



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# File 'lib/command/diff.rb', line 22

def initialize
  super("[<target>] [options]")
  @opt.separator <<-EOS

  ・指定した小説の更新前後の変更点の差分を表示します。
  ・対象小説を指定しなかった場合は直前に更新した小説の差分を表示します。
  ・もし自分の好きな差分表示プログラムを使いたい場合、difftoolを設定して変更することが出来ます(下記参照)

  Examples:
narou diff          # 直前に更新した小説の差分を表示
narou diff 6
narou diff 6 -n 2   # 最新から2番目の差分との比較
narou diff 6 -2     # -n 2 の省略した記述方法
narou diff 6 [email protected]   # 差分を直接指定
narou diff 6 -l     # 過去にどの話数の差分があるのかを確認

# 自分の好きな差分表示プログラムを使う場合
narou s difftool="C:\\Program Files\\WinMerge\\WinMergeU.exe"
narou s difftool=colordiff      # コマンドラインツールを指定したり
# Narou.rbオリジナルの差分表示に戻す場合は設定を削除する
narou s difftool=

# difftoolに渡す引数(指定しなければ単純に新旧ファイルを引数に呼び出す)
# 特殊な変数 %NEW : 最新データの差分用ファイルパス
#            %OLD : 古い方の差分用ファイルパス
narou s difftool.arg='-e -x -ub -dl "OLD" -dr "NEW" %OLD %NEW'
narou s difftool.arg="-u %OLD %NEW"

  Options:
  EOS

  @opt.on("-n NUM", "--number", "比較する差分を遡って指定する。最新のアップデートと直前のデータを比較するなら-n 1、2個前のアップデートなら-n 2。(デフォルトは-n 1)", Integer) { |number|
    @options["number"] = number if number > 1
  }
  @opt.on("-l", "--list", "指定した小説の差分一覧を表示する") {
    @options["list"] = true
  }
  @opt.on("-c", "--clean", "指定した小説の差分データを全て削除する") {
    @options["clean"] = true
  }
  @opt.on("--all-clean", "凍結済を除く全小説の差分データを削除する") {
    @options["all-clean"] = true
  }
  @opt.on("--no-tool", "外部差分ツールを使用しない") {
    @options["no-tool"] = true
  }
end

Class Method Details

.oneline_help ⇒ Object 



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# File 'lib/command/diff.rb', line 18

def self.oneline_help
  "更新された小説の差分を表示します"
end

Instance Method Details

#clean_all_diff ⇒ Object 



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# File 'lib/command/diff.rb', line 295

def clean_all_diff
  Database.instance.each do |id, data|
    next if Narou.novel_frozen?(id)
    cache_root_dir = Downloader.get_cache_root_dir(id)
    next unless File.exist?(cache_root_dir)
    FileUtils.remove_entry_secure(cache_root_dir)
    stream_io.puts "#{data["title"]} の差分を削除しました"
  end
end

#clean_diff(id) ⇒ Object 



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# File 'lib/command/diff.rb', line 137

def clean_diff(id)
  cache_root_dir = Downloader.get_cache_root_dir(id)
  stream_io.print @novel_data["title"] + " の"
  unless File.exist?(cache_root_dir)
    stream_io.puts "差分はひとつもありません"
    return
  end
  FileUtils.remove_entry_secure(cache_root_dir)
  stream_io.puts "差分を削除しました"
end

#create_difftool_command_string(temp_old_path, temp_new_path) ⇒ Object 



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# File 'lib/command/diff.rb', line 169

def create_difftool_command_string(temp_old_path, temp_new_path)
  diff_arg = Inventory.load("global_setting", :global)["difftool.arg"]
  diff_cmd = %!"#{@difftool}" !
  if diff_arg
    diff_arg.gsub!("%OLD", temp_old_path)
    diff_arg.gsub!("%NEW", temp_new_path)
    diff_cmd += diff_arg
  else
    diff_cmd += [temp_old_path, temp_new_path].join(" ")
  end
  diff_cmd
end

#create_temp_by_sections(temp_prefix, sections, novel_info) ⇒ Object 



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# File 'lib/command/diff.rb', line 226

def create_temp_by_sections(temp_prefix, sections, novel_info)
  html = HTML.new
  html.strip_decoration_tag = true
  sections.each do |section|
    element = section["element"]
    data_type = element.delete("data_type") || "text"
    element.each do |text_type, elm_text|
      if data_type == "html"
        html.string = elm_text
        element[text_type] = html.to_aozora
      end
    end
  end
  temp = Tempfile.open([temp_prefix, ".txt"])
  temp.write(Template.get("diff.txt", binding, 1.0))
  temp.close
  temp
end

#create_temp_files(id) ⇒ Object 



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# File 'lib/command/diff.rb', line 187

def create_temp_files(id)
  if @options["view_diff_version"]
    cache_root_dir = Downloader.get_cache_root_dir(id)
    if cache_root_dir
      cache_dir = File.join(cache_root_dir, @options["view_diff_version"])
      cache_dir = nil unless File.exist?(cache_dir)
    end
  else
    nth = @options["number"]
    list = get_sorted_cache_list(id)
    cache_dir = list ? list[nth - 1] : nil
  end
  unless cache_dir
    stream_io.puts "#{@novel_data["title"]} の差分データがありません"
    return nil
  end
  cache_section_list = Dir.glob("#{cache_dir}/*.yaml").sort_by { |path|
    File.basename(path, ".yaml").split(" ", 2)[0].to_i
  }
  if cache_section_list.length == 0
    stream_io.puts "#{@novel_data["title"]} は最新話のみのアップデートのようです"
    return nil
  end
  novel_dir = Downloader.get_novel_section_save_dir(Downloader.get_novel_data_dir_by_target(id))
  latest_novel_sections = []
  cache_sections = []
  cache_section_list.each do |path|
    match_latest_path = File.join(novel_dir, File.basename(path))
    latest_novel_sections << YAML.load_file(match_latest_path) if File.exist?(match_latest_path)
    cache_sections << YAML.load_file(path)
  end

  novel_info = Database.instance[id]
  temp_old = create_temp_by_sections("old", cache_sections, novel_info)
  temp_new = create_temp_by_sections("new", latest_novel_sections, novel_info)

  [temp_old, temp_new]
end

#display_diff_list(id) ⇒ Object 



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# File 'lib/command/diff.rb', line 276

def display_diff_list(id)
  list = get_diff_list(id)
  stream_io.print "#{list[:title]} の"
  if list[:list].empty?
    stream_io.puts "差分はひとつもありません"
    return
  end
  stream_io.puts "差分一覧"
  list[:list].each do |data|
    stream_io.puts "<bold><yellow>#{data[:version_string]}   -#{data[:number]}</yellow></bold>".termcolor
    data[:objects].each do |object|
      stream_io.puts "   第#{object[:index]}部分　#{object[:subtitle]}"
    end
    if data[:objects].empty?
      stream_io.puts "   (最新話のみのアップデート)"
    end
  end
end

#display_diff_on_oneself(id) ⇒ Object

diff-lcs を使って自力で差分表示



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# File 'lib/command/diff.rb', line 308

def display_diff_on_oneself(id)
  require_relative "../diffviewer"
  temp_paths = create_temp_files(id) or return
  stream_io.puts "#{@novel_data["title"]} の差分を表示します"
  stream_io.puts DiffViewer.new(*temp_paths).result
ensure
  temp_paths.map(&:delete) if temp_paths
end

#exec_difftool(id) ⇒ Object 



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# File 'lib/command/diff.rb', line 148

def exec_difftool(id)
  temp_paths = create_temp_files(id) or return
  diff_cmd = create_difftool_command_string(*temp_paths.map { |temp|
    path = temp.path
    if Helper.os_windows?
      path = path.encode(Encoding::Windows_31J)
    end
    %!"#{path}"!
  })
  begin
    res = Helper::AsyncCommand.exec(diff_cmd)
  rescue Errno::ENOENT => e
    error e.message
    exit Narou::EXIT_ERROR_CODE
  ensure
    temp_paths.map(&:delete)
  end
  stream_io.puts res[0] unless res[0].empty?
  error res[1] unless res[1].empty?
end

#execute(argv) ⇒ Object 



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# File 'lib/command/diff.rb', line 81

def execute(argv)
  disable_logging
  short_number_option_parse(argv)
  super
  @options["number"] ||= 1
  if argv.empty?
    latest = Database.instance.sort_by("last_update").first
    return unless latest
    id = latest["id"]
    @novel_data = latest
  else
    target = argv.shift
    @novel_data = Downloader.get_data_by_target(target) || {}
    id = @novel_data["id"]
  end
  unless id
    error "#{target} は存在しません"
    return
  end
  view_diff_version = argv.shift
  if view_diff_version
    if invalid_diff_version_string?(view_diff_version)
      error "差分指定の書式が違います(正しい例:[email protected])"
      return
    end
    @options["view_diff_version"] = view_diff_version
  end
  if @options["list"]
    display_diff_list(id)
    return
  end
  if @options["clean"]
    clean_diff(id)
    return
  end
  if @options["all-clean"]
    clean_all_diff
    return
  end
  @difftool = Inventory.load("global_setting", :global)["difftool"]
  if @difftool.! || @options["no-tool"]
    display_diff_on_oneself(id)
    return
  end
  exec_difftool(id)
end

#get_diff_list(id) ⇒ Object 



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# File 'lib/command/diff.rb', line 245

def get_diff_list(id)
  @novel_data ||= Database.instance.get_data("id", id)
  list = {
    id: id,
    title: @novel_data["title"],
    list: []
  }
  cache_list = get_sorted_cache_list(id)
  return list if cache_list.empty?
  cache_list.each.with_index(1) do |cache_path, i|
    objects = []
    version_string = File.basename(cache_path)
    data = {
      number: i,
      version_string: version_string,
      time: version_string_to_time(version_string),
      objects: objects
    }
    list[:list].push(data)
    cache_section_list = Dir.glob(File.join(cache_path, "*.yaml"))
    if cache_section_list.length > 0
      cache_section_list.map { |section_path|
        File.basename(section_path, ".yaml").split(" ", 2)
      }.sort_by { |v| v[0].to_i }.each { |index, subtitle|
        objects.push({ index: index, subtitle: subtitle })
      }
    end
  end
  list
end

#get_sorted_cache_list(id) ⇒ Object 



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# File 'lib/command/diff.rb', line 182

def get_sorted_cache_list(id)
  list = Downloader.get_cache_list(id) or return nil
  list.sort_by { |v| File.basename(v) }.reverse
end

#invalid_diff_version_string?(str) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/command/diff.rb', line 128

def invalid_diff_version_string?(str)
  str !~ /^\d{4}\.\d{2}\.\d{2}@\d{2}[;.]\d{2}[;.]\d{2}$/
end

#short_number_option_parse(argv) ⇒ Object

引数の中の -数字 オプション(-n 数字の省略形)を -n 数字 に変換する



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# File 'lib/command/diff.rb', line 71

def short_number_option_parse(argv)
  argv.map! { |arg|
    if arg =~ /^-(\d+)$/
      ["-n", $1.to_s]
    else
      arg
    end
  }.flatten!
end

#version_string_to_time(string) ⇒ Object 



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# File 'lib/command/diff.rb', line 132

def version_string_to_time(string)
  ymd, hms = string.split("@")
  Helper.date_string_to_time("#{ymd} #{hms.tr(".", ":")}")
end