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std_trap = trap("INT") { exit! 130 } # no backtrace thanks
require "pathname"
HOMEBREW_LIBRARY_PATH = Pathname.new(__FILE__).realpath.parent.join("Homebrew")
$:.unshift(HOMEBREW_LIBRARY_PATH.to_s)
require "global"
if ARGV == %w[--version] || ARGV == %w[-v]
puts "Homebrew #{Homebrew.homebrew_version_string}"
puts "Homebrew/homebrew-core #{Homebrew.core_tap_version_string}"
exit 0
end
if OS.mac? && MacOS.version < "10.6"
abort <<-EOABORT.undent
Homebrew requires Snow Leopard or higher. For Tiger and Leopard support, see:
https://github.com/mistydemeo/tigerbrew
EOABORT
end
def require?(path)
require path
rescue LoadError => e
# HACK: ( because we should raise on syntax errors but
# not if the file doesn't exist. TODO make robust!
raise unless e.to_s.include? path
end
begin
trap("INT", std_trap) # restore default CTRL-C handler
empty_argv = ARGV.empty?
help_flag_list = %w[-h --help --usage -? help]
help_flag = false
internal_cmd = true
cmd = nil
ARGV.dup.each_with_index do |arg, i|
if help_flag && cmd
break
elsif help_flag_list.include? arg
help_flag = true
elsif !cmd
cmd = ARGV.delete_at(i)
end
end
# Add contributed commands to PATH before checking.
Dir["#{HOMEBREW_LIBRARY}/Taps/*/*/cmd"].each do |tap_cmd_dir|
ENV["PATH"] += "#{File::PATH_SEPARATOR}#{tap_cmd_dir}"
end
# Add SCM wrappers.
ENV["PATH"] += "#{File::PATH_SEPARATOR}#{HOMEBREW_SHIMS_PATH}/scm"
if cmd
internal_cmd = require? HOMEBREW_LIBRARY_PATH.join("cmd", cmd)
if !internal_cmd && ARGV.homebrew_developer?
internal_cmd = require? HOMEBREW_LIBRARY_PATH.join("dev-cmd", cmd)
end
end
# Usage instructions should be displayed if and only if one of:
# - a help flag is passed AND an internal command is matched
# - a help flag is passed AND there is no command specified
# - no arguments are passed
#
# It should never affect external commands so they can handle usage
# arguments themselves.
if empty_argv || (help_flag && (cmd.nil? || internal_cmd))
# TODO: - `brew help cmd` should display subcommand help
require "cmd/help"
if empty_argv
$stderr.puts ARGV.usage
else
puts ARGV.usage
end
exit ARGV.any? ? 0 : 1
end
if internal_cmd
Homebrew.send cmd.to_s.tr("-", "_").downcase
elsif which "brew-#{cmd}"
%w[CACHE LIBRARY_PATH].each do |e|
ENV["HOMEBREW_#{e}"] = Object.const_get("HOMEBREW_#{e}").to_s
end
exec "brew-#{cmd}", *ARGV
elsif (path = which("brew-#{cmd}.rb")) && require?(path)
exit Homebrew.failed? ? 1 : 0
else
require "tap"
possible_tap = case cmd
when "brewdle", "brewdler", "bundle", "bundler"
Tap.fetch("Homebrew", "bundle")
when "cask"
Tap.fetch("caskroom", "cask")
when "services"
Tap.fetch("Homebrew", "services")
end
if possible_tap && !possible_tap.installed?
brew_uid = HOMEBREW_BREW_FILE.stat.uid
tap_commands = []
if Process.uid.zero? && !brew_uid.zero?
tap_commands += %W[/usr/bin/sudo -u ##{brew_uid}]
end
tap_commands += %W[#{HOMEBREW_BREW_FILE} tap #{possible_tap}]
safe_system *tap_commands
exec HOMEBREW_BREW_FILE, cmd, *ARGV
else
onoe "Unknown command: #{cmd}"
exit 1
end
end
rescue FormulaUnspecifiedError
abort "This command requires a formula argument"
rescue KegUnspecifiedError
abort "This command requires a keg argument"
rescue UsageError
onoe "Invalid usage"
abort ARGV.usage
rescue SystemExit => e
onoe "Kernel.exit" if ARGV.verbose? && !e.success?
$stderr.puts e.backtrace if ARGV.debug?
raise
rescue Interrupt => e
$stderr.puts # seemingly a newline is typical
exit 130
rescue BuildError => e
e.dump
exit 1
rescue RuntimeError, SystemCallError => e
raise if e.message.empty?
onoe e
$stderr.puts e.backtrace if ARGV.debug?
exit 1
rescue Exception => e
onoe e
if internal_cmd
$stderr.puts "#{Tty.white}Please report this bug:"
$stderr.puts " #{Tty.em}#{OS::ISSUES_URL}#{Tty.reset}"
end
$stderr.puts e.backtrace
exit 1
else
exit 1 if Homebrew.failed?
end