Module: Golem::Parser

Defined in:
lib/golem/parser.rb

Overview

Parsing command line options.

Class Method Summary collapse

Class Method Details

.run(args) ⇒ Object

Parse arguments and run the specified command (or environment if non given).



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# File 'lib/golem/parser.rb', line 6

def self.run(args)
	options = {}
	::OptionParser.new do |opts|
 opts.banner = "Usage: golem [options] command [arguments]"
 opts.separator ""
 opts.separator "Options:"
 opts.on("-c", "--config FILE", "path to config file") {|val| options[:cfg_path] = val}
 opts.on("-d", "--db URL", "database to use (e.g. 'simple' or 'postgres://', etc.)") {|val| options[:db] = val}
 opts.on("-u", "--user-home PATH", "path to user's home (e.g. the authorized key will be written here)") {|val| options[:user_home] = val}
 opts.on("-r", "--repositories DIR", "path to repositories (may be relative to user_home)") {|val| options[:repository_dir] = val}
 opts.on("-b", "--base DIR", "path to base (place of conf, hooks by default)") {|val| options[:base_dir] = val}
 opts.on("-B", "--bin DIR", "path to executable (defaults to base/bin)") {|val| options[:bin_dir] = val}
 opts.on("-H", "--hooks DIR", "path to hooks (defaults to base/hooks)") {|val| options[:hooks_dir] = val}
 opts.on("-h", "--help", "show this message") {puts opts; exit}
 opts.on("-v", "--verbose", "show output (defaults to false, note: not every command supports it)") {Golem::Parser.verbose = true}
 opts.separator ""
 opts.separator "Environment variables (options always take precedence):"
 opts.separator "\tGOLEM_CONF is used as config file path if exists"
 opts.separator "\tGOLEM_BASE is used as base dir"
 opts.separator "\tHOME is used as user-home path"
 opts.separator ""
 opts.separator "Commands:"
 Golem::Command::COMMANDS.each do |cmd|
		usage = Golem::Command.usage(cmd).split("\n")
		opts.separator "\tgolem #{cmd.to_s} " + usage.shift
		opts.separator usage.collect {|l| "\t\t" + l}.join("\n") if usage.length > 0
		opts.separator "\t\tsynonyms: " + Golem::Command::ALIASES[cmd].join(', ') if Golem::Command::ALIASES.key?(cmd)
 end
	end.parse! args
	Golem::Config.auto_configure(options.delete(:cfg_path)) do
 options.each do |key, val|
		send((key.to_s + "=").to_sym, val)
 end
	end
	Golem::Command.run(args.shift || "environment", {:verbose => (@verbose || false)}, *args)
end