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September 7, 2015 12:46
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Revised: Namespacing thor commands in a standalone Ruby executable
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| $ ./executable-with-subcommands-using-thor.rb | |
| Tasks: | |
| executable-with-subcommands-using-thor.rb help [TASK] # Describe available tasks or one specific task | |
| executable-with-subcommands-using-thor.rb subA [TASK] # Execute a task in namespace subA | |
| executable-with-subcommands-using-thor.rb subB [TASK] # Execute a task in namespace subB | |
| executable-with-subcommands-using-thor.rb test # test in CLI | |
| $ ./executable-with-subcommands-using-thor.rb help | |
| Tasks: | |
| executable-with-subcommands-using-thor.rb help [TASK] # Describe available tasks or one specific task | |
| executable-with-subcommands-using-thor.rb subA [TASK] # Execute a task in namespace subA | |
| executable-with-subcommands-using-thor.rb subB [TASK] # Execute a task in namespace subB | |
| executable-with-subcommands-using-thor.rb test # test in CLI | |
| $ ./executable-with-subcommands-using-thor.rb subA help test | |
| Usage: | |
| executable-with-subcommands-using-thor.rb subA test | |
| test in SubCommandA |
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| #!/usr/bin/env ruby | |
| # -*- encoding: UTF-8 -*- | |
| # Derived from <http://stackoverflow.com/questions/5663519/namespacing-thor-commands-in-a-standalone-ruby-executable> | |
| require 'rubygems' | |
| require 'thor' | |
| require 'thor/group' | |
| module MyApp | |
| class ThorSubCommandTemplate < Thor | |
| class << self | |
| def subcommand_setup(name, usage, desc) | |
| namespace :"#{name}" | |
| @subcommand_usage = usage | |
| @subcommand_desc = desc | |
| end | |
| def banner(task, namespace = nil, subcommand = false) | |
| "#{basename} #{task.formatted_usage(self, true, true)}" | |
| end | |
| def register_to(klass) | |
| klass.register(self, @namespace, @subcommand_usage, @subcommand_desc) | |
| end | |
| end | |
| end | |
| class SubCommandA < ThorSubCommandTemplate | |
| subcommand_setup "subA", "subA [TASK]", "Execute a task in namespace subA" | |
| desc "test", "test in SubCommandA" | |
| def test | |
| # ... | |
| end | |
| end | |
| class SubCommandB < ThorSubCommandTemplate | |
| subcommand_setup "subB", "subB [TASK]", "Execute a task in namespace subB" | |
| desc "test", "test in SubCommandB" | |
| def test | |
| # ... | |
| end | |
| end | |
| class CLI < Thor | |
| SubCommandA.register_to(self) | |
| SubCommandB.register_to(self) | |
| desc "test", "test in CLI" | |
| def test | |
| # ... | |
| end | |
| end | |
| end | |
| MyApp::CLI.start |
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