зеркало из https://github.com/github/ruby.git
60 строки
1.8 KiB
Ruby
60 строки
1.8 KiB
Ruby
# frozen_string_literal: true
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require "stringio"
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require_relative "nop"
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require_relative "../pager"
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module IRB
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# :stopdoc:
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module ExtendCommand
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class ShowCmds < Nop
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category "IRB"
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description "List all available commands and their description."
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def execute(*args)
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commands_info = IRB::ExtendCommandBundle.all_commands_info
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commands_grouped_by_categories = commands_info.group_by { |cmd| cmd[:category] }
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user_aliases = irb_context.instance_variable_get(:@user_aliases)
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commands_grouped_by_categories["Aliases"] = user_aliases.map do |alias_name, target|
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{ display_name: alias_name, description: "Alias for `#{target}`" }
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end
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if irb_context.with_debugger
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# Remove the original "Debugging" category
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commands_grouped_by_categories.delete("Debugging")
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# Remove the `help` command as it's delegated to the debugger
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commands_grouped_by_categories["Context"].delete_if { |cmd| cmd[:display_name] == :help }
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# Add an empty "Debugging (from debug.gem)" category at the end
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commands_grouped_by_categories["Debugging (from debug.gem)"] = []
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end
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longest_cmd_name_length = commands_info.map { |c| c[:display_name].length }.max
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output = StringIO.new
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commands_grouped_by_categories.each do |category, cmds|
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output.puts Color.colorize(category, [:BOLD])
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cmds.each do |cmd|
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output.puts " #{cmd[:display_name].to_s.ljust(longest_cmd_name_length)} #{cmd[:description]}"
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end
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output.puts
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end
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# Append the debugger help at the end
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if irb_context.with_debugger
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output.puts DEBUGGER__.help
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end
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Pager.page_content(output.string)
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end
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end
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end
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# :startdoc:
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end
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