vagrant/lib/vagrant/cli.rb

75 lines
2.3 KiB
Ruby

require 'log4r'
require 'optparse'
module Vagrant
# Manages the command line interface to Vagrant.
class CLI < Vagrant.plugin("2", :command)
def initialize(argv, env)
super
@logger = Log4r::Logger.new("vagrant::cli")
@main_args, @sub_command, @sub_args = split_main_and_subcommand(argv)
@logger.info("CLI: #{@main_args.inspect} #{@sub_command.inspect} #{@sub_args.inspect}")
end
def execute
if @main_args.include?("-h") || @main_args.include?("--help")
# Help is next in short-circuiting everything. Print
# the help and exit.
help
return 0
end
# If we reached this far then we must have a subcommand. If not,
# then we also just print the help and exit.
command_class = nil
if @sub_command
command_class = Vagrant.plugin("2").manager.commands[@sub_command.to_sym]
end
if !command_class || !@sub_command
help
return 1
end
@logger.debug("Invoking command class: #{command_class} #{@sub_args.inspect}")
# Initialize and execute the command class, returning the exit status.
result = command_class.new(@sub_args, @env).execute
result = 0 if !result.is_a?(Fixnum)
return result
end
# This prints out the help for the CLI.
def help
# We use the optionparser for this. Its just easier. We don't use
# an optionparser above because I don't think the performance hits
# of creating a whole object are worth checking only a couple flags.
opts = OptionParser.new do |o|
o.banner = "Usage: vagrant [-v] [-h] command [<args>]"
o.separator ""
o.on("-v", "--version", "Print the version and exit.")
o.on("-h", "--help", "Print this help.")
o.separator ""
o.separator "Available subcommands:"
# Add the available subcommands as separators in order to print them
# out as well.
keys = []
Vagrant.plugin("2").manager.commands.each do |key, _|
keys << key
end
keys.sort.each do |key|
o.separator " #{key}"
end
o.separator ""
o.separator "For help on any individual command run `vagrant COMMAND -h`"
end
@env.ui.info(opts.help, :prefix => false)
end
end
end