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