Class: Lilac::CLI::Command

Inherits:
Object
  • Object
show all
Defined in:
lib/lilac/cli/command.rb

Overview

Entry point for exe/lilac. Routes argv to the matching Subcommand::* handler; each subcommand owns its own OptionParser and run method. The outer rescue here keeps the user-facing error surface uniform (Builder::Error / ConfigLoader::LoadError / etc. → "lilac: " + exit 1).

Constant Summary collapse

SUBCOMMAND_HANDLERS = 
{
  "build"         => Subcommand::Build,
  "dev"           => Subcommand::Dev,
  "preview"       => Subcommand::Preview,
  "new"           => Subcommand::New,
  "doctor"        => Subcommand::Doctor,
  "package-build" => Subcommand::PackageBuild,
}.freeze

Instance Method Summary collapse

Constructor Details

#initialize(argv, out: $stdout, err: $stderr) ⇒ Command

Returns a new instance of Command.



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# File 'lib/lilac/cli/command.rb', line 27

def initialize(argv, out: $stdout, err: $stderr)
  @argv = argv.dup
  @out = out
  @err = err
end

Instance Method Details

#run ⇒ Object

Returns an exit status (0 for success).



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# File 'lib/lilac/cli/command.rb', line 34

def run
  name = @argv.shift || "help"

  return print_version if name == "--version"
  return run_help if %w[help -h --help].include?(name)

  if (handler = SUBCOMMAND_HANDLERS[name])
    handler.new(@argv, out: @out, err: @err).run
  else
    @err.puts "lilac: unknown command #{name.inspect}"
    @err.puts
    print_help(io: @err)
    1
  end
rescue Builder::Error, SFC::ParseError, Scaffold::Error,
       ConfigLoader::LoadError, PreviewServer::Error,
       PackageBuild::Error => e
  @err.puts "lilac: #{e.message}"
  1
end

#run_help ⇒ Object

lilac help shows the top-level help; lilac help <subcmd> shows the per-subcommand option list (sourced from the same OptionParser that the subcommand uses, so it stays in sync).



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# File 'lib/lilac/cli/command.rb', line 58

def run_help
  topic = @argv.shift
  case topic
  when nil, "help", "-h", "--help"
    print_help
    0
  else
    if (handler = SUBCOMMAND_HANDLERS[topic])
      @out.puts handler.help_text
      0
    else
      @err.puts "lilac help: unknown command #{topic.inspect}"
      @err.puts
      print_help(io: @err)
      1
    end
  end
end