56 lines
1.1 KiB
Ruby
56 lines
1.1 KiB
Ruby
module Uh
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module WM
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class CLI
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ArgumentError = Class.new(ArgumentError)
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USAGE = "Usage: #{File.basename $0} [options]".freeze
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EX_USAGE = 64
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class << self
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def run arguments, stdout: $stdout, stderr: $stderr
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cli = new arguments, stdout: stdout
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cli.parse_arguments!
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cli.run
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rescue ArgumentError => e
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stderr.puts e
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exit EX_USAGE
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end
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end
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attr_reader :env
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def initialize args, stdout: $stdout
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@arguments = args
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@env = Env.new(stdout.tap { |o| o.sync = true })
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end
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def parse_arguments!
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option_parser.parse! @arguments
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rescue OptionParser::InvalidOption => e
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fail ArgumentError, option_parser
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end
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def run
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Runner.run env
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end
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private
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def option_parser
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OptionParser.new do |opts|
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opts.banner = USAGE
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opts.separator ''
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opts.separator 'options:'
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opts.on '-h', '--help', 'print this message' do
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@env.print opts
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exit
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end
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end
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end
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end
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end
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end
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