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pry--pry/lib/pry/commands/install_command.rb
Kyrylo Silin 256f35422a Prettify command descriptions, switches and stuff
Wrap command descriptions to 80 characters. Convert some string options
to symbols (where possible). Align options in code. Remove dots in the
end of switch descriptions.

Signed-off-by: Kyrylo Silin <kyrylosilin@gmail.com>
2013-01-09 22:23:19 +02:00

51 lines
1.5 KiB
Ruby

class Pry
class Command::InstallCommand < Pry::ClassCommand
match 'install-command'
group 'Commands'
description 'Install a disabled command.'
banner <<-'BANNER'
Usage: install-command COMMAND
Installs the gems necessary to run the given COMMAND. You will generally not
need to run this unless told to by an error message.
BANNER
def process(name)
require 'rubygems/dependency_installer' unless defined? Gem::DependencyInstaller
command = find_command(name)
if command_dependencies_met?(command.options)
output.puts "Dependencies for #{command.name} are met. Nothing to do."
return
end
output.puts "Attempting to install `#{name}` command..."
gems_to_install = Array(command.options[:requires_gem])
gems_to_install.each do |g|
next if Rubygem.installed?(g)
output.puts "Installing `#{g}` gem..."
begin
Gem::DependencyInstaller.new.install(g)
rescue Gem::GemNotFoundException
raise CommandError, "Required Gem: `#{g}` not found. Aborting command installation."
end
end
Gem.refresh
gems_to_install.each do |g|
begin
require g
rescue LoadError
raise CommandError, "Required Gem: `#{g}` installed but not found?!. Aborting command installation."
end
end
output.puts "Installation of `#{name}` successful! Type `help #{name}` for information"
end
end
Pry::Commands.add_command(Pry::Command::InstallCommand)
end