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ebccd57013
John "banister" Mair describes the following key features of commands
as classes:
1. It enables people to extend them by either subclassing or
monkeypatching.
2. It enables them to provide their own API, so that for example, the
Pry::Command::Edit class could have class methods for people to
configure it.
Please, note that I didn't touch easter eggs commands. I also prettified
some strings (your source code reading experience should vastly improve!).
Signed-off-by: Kyrylo Silin <kyrylosilin@gmail.com>
36 lines
1.1 KiB
Ruby
36 lines
1.1 KiB
Ruby
class Pry
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class Command::GemInstall < Pry::ClassCommand
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match 'gem-install'
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group 'Gems'
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description 'Install a gem and refresh the gem cache.'
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command_options :argument_required => true
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banner <<-BANNER
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Usage: gem-install GEM_NAME
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Installs the given gem and refreshes the gem cache so that you can immediately 'require GEM_FILE'
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BANNER
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def setup
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require 'rubygems/dependency_installer' unless defined? Gem::DependencyInstaller
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end
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def process(gem)
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begin
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destination = File.writable?(Gem.dir) ? Gem.dir : Gem.user_dir
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installer = Gem::DependencyInstaller.new :install_dir => destination
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installer.install gem
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rescue Errno::EACCES
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raise CommandError, "Insufficient permissions to install `#{text.green gem}`."
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rescue Gem::GemNotFoundException
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raise CommandError, "Gem `#{text.green gem}` not found."
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else
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Gem.refresh
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output.puts "Gem `#{text.green gem}` installed."
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require gem
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end
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end
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end
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Pry::Commands.add_command(Pry::Command::GemInstall)
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end
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