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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)
unless command
output.puts "Command #{ green(name) } is not found"
return
end
if command_dependencies_met?(command.options)
output.puts "Dependencies for #{ green(name) } are met. Nothing to do"
return
end
output.puts "Attempting to install #{ green(name) } command..."
gems_to_install = Array(command.options[:requires_gem])
gems_to_install.each do |g|
next if Rubygem.installed?(g)
output.puts "Installing #{ green(g) } gem..."
Rubygem.install(g)
end
gems_to_install.each do |g|
begin
require g
rescue LoadError
fail_msg = "Required gem #{ green(g) } installed but not found."
fail_msg += " Aborting command installation\n"
fail_msg += 'Tips: 1. Check your PATH; 2. Run `bundle update`'
raise CommandError, fail_msg
end
end
output.puts "Installation of #{ green(name) } successful! Type `help #{name}` for information"
end
end
Pry::Commands.add_command(Pry::Command::InstallCommand)
end
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