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# File 'lib/ace/support/cli/help/help_command.rb', line 8
def self.build(program_name:, version:, commands:, examples: nil)
Class.new(Command) do
@program_name = program_name
@version = version
@commands = commands
@examples = examples
class << self
attr_reader :program_name, :version, :commands, :examples
end
desc "Show top-level help"
argument :args, type: :array, required: false
def call(**_params)
puts self.class.render
0
end
def self.render
sections = []
sections << "#{program_name} #{version}".strip
sections << render_commands
rendered_examples = render_examples
sections << rendered_examples if rendered_examples
sections << render_options
sections.join("\n\n")
end
def self.render_commands
lines = normalized_commands.map do |name, description|
"#{" #{name}".ljust(16)}# #{description}"
end
"Commands:\n#{lines.join("\n")}"
end
def self.render_examples
return nil if examples.nil? || examples.empty?
"Examples:\n#{examples.map { |item| " #{item}" }.join("\n")}"
end
def self.render_options
<<~OPTIONS.chomp
Options:
--help, -h # Print this help
--version # Print version
OPTIONS
end
def self.normalized_commands
commands.is_a?(Hash) ? commands.to_a : commands
end
end
end
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