Class: BitClust::Runner

Inherits:
Object show all
Defined in:
lib/bitclust/runner.rb

Overview

Body of bin/bitclust.

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Runner

Returns a new instance of Runner.



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# File 'lib/bitclust/runner.rb', line 26

def initialize
end

Instance Method Details

#_run(argv) ⇒ Object 



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# File 'lib/bitclust/runner.rb', line 110

def _run(argv)
  begin
    @parser.order!(argv)
    if argv.empty?
      $stderr.puts 'no sub-command given'
      $stderr.puts @parser.help
      exit 1
    end
    name = argv.shift
    cmd = @subcommands[name] or error "no such sub-command: #{name}"
  rescue OptionParser::ParseError => err
    $stderr.puts err.message
    $stderr.puts @parser.help
    exit 1
  end
  begin
    cmd.parse(argv)
  rescue OptionParser::ParseError => err
    $stderr.puts err.message
    $stderr.puts cmd.help
    exit 1
  end
  config = load_config()
  if config
    @version ||= config[:default_version]
    @prefix ||= "#{config[:database_prefix]}-#{@version}"
  end
  options = {
    :prefix => @prefix,
    :capi   => @capi
  }
  cmd.exec(argv, options)
rescue BitClust::WriterError => err
  raise if $DEBUG
  error err.message
end

#error(message) ⇒ Object 



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# File 'lib/bitclust/runner.rb', line 157

def error(message)
  $stderr.puts "#{File.basename($0, '.*')}: error: #{message}"
  exit 1
end

#load_config ⇒ Object 



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# File 'lib/bitclust/runner.rb', line 147

def load_config
  home_directory = Pathname(ENV['HOME'])
  config_path = home_directory + ".bitclust/config"
  if config_path.exist?
    YAML.load_file(config_path)
  else
    nil
  end
end

#prepare ⇒ Object 



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# File 'lib/bitclust/runner.rb', line 38

def prepare
  @prefix = nil
  @version = nil
  @capi = false
  @parser = OptionParser.new
  @parser.banner = <<-EndBanner
Usage: #{File.basename($0, '.*')} [global options] <subcommand> [options] [args]

Subcommands(for users):
init        Initialize database.
update      Update database.
setup       Initialize and update database with default options.
list        List libraries/classes/methods in database.
lookup      Lookup a library/class/method from database.
search      Search classes/methods from database.

Subcommands(for developers):
ancestors   Compare class/module's ancestors between Ruby and DB.
htmlfile    Generate a static HTML file for test.
query       Dispatch arbitrary query.
property    Handle database properties.
preproc     Preprocess source file.
extract     Extract method entries from source file.
classes     Display defined classes for all ruby.
methods     Display defined methods for all ruby.

Subcommands(for packagers):
statichtml  Generate static HTML files.
epub        Generate EPUB file.
chm         Generate static HTML files for CHM.

Global Options:
  EndBanner
  @parser.on('-d', '--database=PATH', 'Database prefix.') {|path|
    @prefix = path
  }
  @parser.on('-t', '--target=VERSION', 'Specify Ruby version.') {|v|
    @version = v
  }
  @parser.on('--capi', 'Process C API database.') {
    @capi = true
  }
  @parser.on('--version', 'Print version and quit.') {
    puts BitClust::VERSION
    exit 0
  }
  @parser.on('--help', 'Prints this message and quit.') {
    puts @parser.help
    exit 0
  }
  @subcommands = {
    'init'        => BitClust::Subcommands::InitCommand.new,
    'list'        => BitClust::Subcommands::ListCommand.new,
    'lookup'      => BitClust::Subcommands::LookupCommand.new,
    'search'      => BitClust::Searcher.new,
    'query'       => BitClust::Subcommands::QueryCommand.new,
    'update'      => BitClust::Subcommands::UpdateCommand.new,
    'property'    => BitClust::Subcommands::PropertyCommand.new,
    'setup'       => BitClust::Subcommands::SetupCommand.new,
    'server'      => BitClust::Subcommands::ServerCommand.new,
    'statichtml'  => BitClust::Subcommands::StatichtmlCommand.new,
    'htmlfile'    => BitClust::Subcommands::HtmlfileCommand.new,
    'chm'         => BitClust::Subcommands::ChmCommand.new,
    'epub'        => BitClust::Subcommands::EPUBCommand.new,
    'ancestors'   => BitClust::Subcommands::AncestorsCommand.new,
    'preproc'     => BitClust::Subcommands::PreprocCommand.new,
    'extract'     => BitClust::Subcommands::ExtractCommand.new,
    'classes'     => BitClust::Subcommands::ClassesCommand.new,
    'methods'     => BitClust::Subcommands::MethodsCommand.new,
  }
end

#run(argv) ⇒ Object 



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# File 'lib/bitclust/runner.rb', line 29

def run(argv)
  Signal.trap(:PIPE, 'IGNORE') rescue nil   # Win32 does not have SIGPIPE
  Signal.trap(:INT) { exit 3 }
  prepare
  _run(argv)
rescue Errno::EPIPE
  exit 0
end