具体有什么用吾亦不知道。有时提示这个错误，有可能是别的错误引起的。
具体错误
Error: You are using macOS 10.13. We (and Apple) do not provide support for this old version. You will encounter build failures with some formulae. Please create pull requests instead of asking for help on Homebrew's GitHub, Twitter or any other official channels. You are responsible for resolving any issues you experience while you are running this old version.
保存脚本brew.rb
#!/usr/bin/ruby # This script installs to /usr/local only. To install elsewhere (which is # unsupported) you can untar https://github.com/Homebrew/brew/tarball/master # anywhere you like. HOMEBREW_PREFIX = "/usr/local".freeze HOMEBREW_REPOSITORY = "/usr/local/Homebrew".freeze HOMEBREW_CACHE = "#{ENV["HOME"]}/Library/Caches/Homebrew".freeze BREW_REPO = "git://mirrors.ustc.edu.cn/brew.git".freeze # TODO: bump version when new macOS is released MACOS_LATEST_SUPPORTED = "10.15".freeze # TODO: bump version when new macOS is released MACOS_OLDEST_SUPPORTED = "10.13".freeze # no analytics during installation ENV["HOMEBREW_NO_ANALYTICS_THIS_RUN"] = "1" ENV["HOMEBREW_NO_ANALYTICS_MESSAGE_OUTPUT"] = "1" # get nicer global variables require "English" module Tty module_function def blue bold 34 end def red bold 31 end def reset escape 0 end def bold(code = 39) escape "1;#{code}" end def underline escape "4;39" end def escape(code) "\033[#{code}m" if STDOUT.tty? end end class Array def shell_s cp = dup first = cp.shift cp.map { |arg| arg.gsub " ", "\\ " }.unshift(first).join(" ") end end def ohai(*args) puts "#{Tty.blue}==>#{Tty.bold} #{args.shell_s}#{Tty.reset}" end def warn(warning) puts "#{Tty.red}Warning#{Tty.reset}: #{warning.chomp}" end def system(*args) abort "Failed during: #{args.shell_s}" unless Kernel.system(*args) end def sudo(*args) args.unshift("-A") unless ENV["SUDO_ASKPASS"].nil? ohai "/usr/bin/sudo", *args system "/usr/bin/sudo", *args end def getc system "/bin/stty raw -echo" if STDIN.respond_to?(:getbyte) STDIN.getbyte else STDIN.getc end ensure system "/bin/stty -raw echo" end def wait_for_user puts puts "Press RETURN to continue or any other key to abort" c = getc # we test for \r and \n because some stuff does \r instead abort unless (c == 13) || (c == 10) end class Version include Comparable attr_reader :parts def initialize(str) @parts = str.split(".").map(&:to_i) end def <=>(other) parts <=> self.class.new(other).parts end def to_s parts.join(".") end end def macos_version @macos_version ||= Version.new(`/usr/bin/sw_vers -productVersion`.chomp[/10\.\d+/]) end def should_install_command_line_tools? if macos_version > "10.13" !File.exist?("/Library/Developer/CommandLineTools/usr/bin/git") else !File.exist?("/Library/Developer/CommandLineTools/usr/bin/git") || !File.exist?("/usr/include/iconv.h") end end def user_only_chmod?(path) return false unless File.directory?(path) mode = File.stat(path).mode & 0777 # u = (mode >> 6) & 07 # g = (mode >> 3) & 07 # o = (mode >> 0) & 07 mode != 0755 end def chmod?(path) File.exist?(path) && !(File.readable?(path) && File.writable?(path) && File.executable?(path)) end def chown?(path) !File.owned?(path) end def chgrp?(path) !File.grpowned?(path) end # USER isn't always set so provide a fall back for the installer and subprocesses. ENV["USER"] ||= `id -un`.chomp # Invalidate sudo timestamp before exiting (if it wasn't active before). Kernel.system "/usr/bin/sudo -n -v 2>/dev/null" at_exit { Kernel.system "/usr/bin/sudo", "-k" } unless $CHILD_STATUS.success? # The block form of Dir.chdir fails later if Dir.CWD doesn't exist which I # guess is fair enough. Also sudo prints a warning message for no good reason Dir.chdir "/usr" ####################################################################### script if RUBY_PLATFORM.to_s.downcase.include?("linux") abort <<-EOABORT To install Linuxbrew, paste at a terminal prompt: sh -c "$(curl -fsSL https://raw.githubusercontent.com/Linuxbrew/install/master/install.sh)" EOABORT elsif macos_version < "10.7" abort <<-EOABORT Your Mac OS X version is too old. See: #{Tty.underline}https://github.com/mistydemeo/tigerbrew#{Tty.reset}" EOABORT elsif macos_version < "10.9" abort "Your OS X version is too old" elsif Process.uid.zero? abort "Don't run this as root!" elsif !`dsmemberutil checkmembership -U "#{ENV["USER"]}" -G admin`.include?("user is a member") abort "This script requires the user #{ENV["USER"]} to be an Administrator." elsif File.directory?(HOMEBREW_PREFIX) && (!File.executable? HOMEBREW_PREFIX) abort <<-EOABORT The Homebrew prefix, #{HOMEBREW_PREFIX}, exists but is not searchable. If this is not intentional, please restore the default permissions and try running the installer again: sudo chmod 775 #{HOMEBREW_PREFIX} EOABORT # TODO: bump version when new macOS is released elsif macos_version > MACOS_LATEST_SUPPORTED || macos_version < MACOS_OLDEST_SUPPORTED who = "We" if macos_version > MACOS_LATEST_SUPPORTED what = "pre-release version" elsif macos_version < MACOS_OLDEST_SUPPORTED who << " (and Apple)" what = "old version" else return end ohai "You are using macOS #{macos_version.parts.join(".")}." ohai "#{who} do not provide support for this #{what}." puts <<-EOS This installation may not succeed. After installation, you will encounter build failures with some formulae. Please create pull requests instead of asking for help on Homebrew's GitHub, Discourse, Twitter or IRC. You are responsible for resolving any issues you experience while you are running this #{what}. EOS end ohai "This script will install:" puts "#{HOMEBREW_PREFIX}/bin/brew" puts "#{HOMEBREW_PREFIX}/share/doc/homebrew" puts "#{HOMEBREW_PREFIX}/share/man/man1/brew.1" puts "#{HOMEBREW_PREFIX}/share/zsh/site-functions/_brew" puts "#{HOMEBREW_PREFIX}/etc/bash_completion.d/brew" puts HOMEBREW_REPOSITORY.to_s # Keep relatively in sync with # https://github.com/Homebrew/brew/blob/master/Library/Homebrew/keg.rb group_chmods = %w[bin etc include lib sbin share opt var Frameworks etc/bash_completion.d lib/pkgconfig share/aclocal share/doc share/info share/locale share/man share/man/man1 share/man/man2 share/man/man3 share/man/man4 share/man/man5 share/man/man6 share/man/man7 share/man/man8 var/log var/homebrew var/homebrew/linked bin/brew] .map { |d| File.join(HOMEBREW_PREFIX, d) } .select { |d| chmod?(d) } # zsh refuses to read from these directories if group writable zsh_dirs = %w[share/zsh share/zsh/site-functions] .map { |d| File.join(HOMEBREW_PREFIX, d) } mkdirs = %w[bin etc include lib sbin share var opt share/zsh share/zsh/site-functions var/homebrew var/homebrew/linked Cellar Caskroom Homebrew Frameworks] .map { |d| File.join(HOMEBREW_PREFIX, d) } .reject { |d| File.directory?(d) } user_chmods = zsh_dirs.select { |d| user_only_chmod?(d) } chmods = group_chmods + user_chmods chowns = chmods.select { |d| chown?(d) } chgrps = chmods.select { |d| chgrp?(d) } unless group_chmods.empty? ohai "The following existing directories will be made group writable:" puts(*group_chmods) end unless user_chmods.empty? ohai "The following existing directories will be made writable by user only:" puts(*user_chmods) end unless chowns.empty? ohai "The following existing directories will have their owner set to #{Tty.underline}#{ENV["USER"]}#{Tty.reset}:" puts(*chowns) end unless chgrps.empty? ohai "The following existing directories will have their group set to #{Tty.underline}admin#{Tty.reset}:" puts(*chgrps) end unless mkdirs.empty? ohai "The following new directories will be created:" puts(*mkdirs) end if should_install_command_line_tools? ohai "The Xcode Command Line Tools will be installed." end wait_for_user if STDIN.tty? && !ENV["CI"] if File.directory? HOMEBREW_PREFIX sudo "/bin/chmod", "u+rwx", *chmods unless chmods.empty? sudo "/bin/chmod", "g+rwx", *group_chmods unless group_chmods.empty? sudo "/bin/chmod", "755", *user_chmods unless user_chmods.empty? sudo "/usr/sbin/chown", ENV["USER"], *chowns unless chowns.empty? sudo "/usr/bin/chgrp", "admin", *chgrps unless chgrps.empty? else sudo "/bin/mkdir", "-p", HOMEBREW_PREFIX sudo "/usr/sbin/chown", "root:wheel", HOMEBREW_PREFIX end unless mkdirs.empty? sudo "/bin/mkdir", "-p", *mkdirs sudo "/bin/chmod", "g+rwx", *mkdirs sudo "/bin/chmod", "755", *zsh_dirs sudo "/usr/sbin/chown", ENV["USER"], *mkdirs sudo "/usr/bin/chgrp", "admin", *mkdirs end sudo "/bin/mkdir", "-p", HOMEBREW_CACHE unless File.directory? HOMEBREW_CACHE sudo "/bin/chmod", "g+rwx", HOMEBREW_CACHE if chmod? HOMEBREW_CACHE sudo "/usr/sbin/chown", ENV["USER"], HOMEBREW_CACHE if chown? HOMEBREW_CACHE sudo "/usr/bin/chgrp", "admin", HOMEBREW_CACHE if chgrp? HOMEBREW_CACHE system "/usr/bin/touch", "#{HOMEBREW_CACHE}/.cleaned" if File.directory? HOMEBREW_CACHE if should_install_command_line_tools? && macos_version >= "10.13" ohai "Searching online for the Command Line Tools" # This temporary file prompts the 'softwareupdate' utility to list the Command Line Tools clt_placeholder = "/tmp/.com.apple.dt.CommandLineTools.installondemand.in-progress" sudo "/usr/bin/touch", clt_placeholder clt_label_command = "/usr/sbin/softwareupdate -l | " \ "grep -B 1 -E 'Command Line Tools' | " \ "awk -F'*' '/^ *\\*/ {print $2}' | " \ "sed -e 's/^ *Label: //' -e 's/^ *//' | " \ "sort -V | " \ "tail -n1" clt_label = `#{clt_label_command}`.chomp unless clt_label.empty? ohai "Installing #{clt_label}" sudo "/usr/sbin/softwareupdate", "-i", clt_label sudo "/bin/rm", "-f", clt_placeholder sudo "/usr/bin/xcode-select", "--switch", "/Library/Developer/CommandLineTools" end end # Headless install may have failed, so fallback to original 'xcode-select' method if should_install_command_line_tools? && STDIN.tty? ohai "Installing the Command Line Tools (expect a GUI popup):" sudo "/usr/bin/xcode-select", "--install" puts "Press any key when the installation has completed." getc sudo "/usr/bin/xcode-select", "--switch", "/Library/Developer/CommandLineTools" end abort <<-EOABORT if `/usr/bin/xcrun clang 2>&1` =~ /license/ && !$CHILD_STATUS.success? You have not agreed to the Xcode license. Before running the installer again please agree to the license by opening Xcode.app or running: sudo xcodebuild -license EOABORT ohai "Downloading and installing Homebrew..." Dir.chdir HOMEBREW_REPOSITORY do # we do it in four steps to avoid merge errors when reinstalling system "git", "init", "-q" # "git remote add" will fail if the remote is defined in the global config system "git", "config", "remote.origin.url", BREW_REPO system "git", "config", "remote.origin.fetch", "+refs/heads/*:refs/remotes/origin/*" # ensure we don't munge line endings on checkout system "git", "config", "core.autocrlf", "false" system "git", "fetch", "origin", "master:refs/remotes/origin/master", "--tags", "--force" system "git", "reset", "--hard", "origin/master" system "ln", "-sf", "#{HOMEBREW_REPOSITORY}/bin/brew", "#{HOMEBREW_PREFIX}/bin/brew" system "#{HOMEBREW_PREFIX}/bin/brew", "update", "--force" end warn "#{HOMEBREW_PREFIX}/bin is not in your PATH." unless ENV["PATH"].split(":").include? "#{HOMEBREW_PREFIX}/bin" ohai "Installation successful!" puts # Use the shell's audible bell. print "\a" # Use an extra newline and bold to avoid this being missed. ohai "Homebrew has enabled anonymous aggregate formulae and cask analytics." puts <<-EOS #{Tty.bold}Read the analytics documentation (and how to opt-out) here: #{Tty.underline}https://docs.brew.sh/Analytics#{Tty.reset} EOS ohai "Homebrew is run entirely by unpaid volunteers. Please consider donating:" puts <<-EOS #{Tty.underline}https://github.com/Homebrew/brew#donations#{Tty.reset} EOS Dir.chdir HOMEBREW_REPOSITORY do system "git", "config", "--replace-all", "homebrew.analyticsmessage", "true" system "git", "config", "--replace-all", "homebrew.caskanalyticsmessage", "true" end ohai "Next steps:" puts "- Run `brew help` to get started" puts "- Further documentation: " puts " #{Tty.underline}https://docs.brew.sh#{Tty.reset}"
执行
ruby brew.rb
