35 lines
990 B
Ruby
35 lines
990 B
Ruby
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# frozen_string_literal: true
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module Jekyll
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module Commands
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class Help < Command
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class << self
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def init_with_program(prog)
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prog.command(:help) do |c|
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c.syntax "help [subcommand]"
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c.description "Show the help message, optionally for a given subcommand."
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c.action do |args, _|
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cmd = (args.first || "").to_sym
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if args.empty?
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Jekyll.logger.info prog.to_s
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elsif prog.has_command? cmd
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Jekyll.logger.info prog.commands[cmd].to_s
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else
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invalid_command(prog, cmd)
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abort
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end
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end
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end
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end
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def invalid_command(prog, cmd)
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Jekyll.logger.error "Error:",
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"Hmm... we don't know what the '#{cmd}' command is."
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Jekyll.logger.info "Valid commands:", prog.commands.keys.join(", ")
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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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