13918ff6d9
Will be useful for a variety of reasons, but for now, I'm just using it to ensure install won't install again if something is already installed (use brew upgrade instead). But means that brew switch and that can work properly etc.
90 lines
2.6 KiB
Ruby
90 lines
2.6 KiB
Ruby
require 'formula_installer'
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require 'hardware'
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require 'blacklist'
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module Homebrew extend self
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def install
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ARGV.named.each do |name|
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msg = blacklisted? name
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raise "No available formula for #{name}\n#{msg}" if msg
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end unless ARGV.force?
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ARGV.formulae.each do |f|
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if File.directory? HOMEBREW_REPOSITORY/"Library/LinkedKegs/#{f.name}"
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raise "#{f} already installed\nTry: brew upgrade #{f}"
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end
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end
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if Process.uid.zero? and not File.stat(HOMEBREW_BREW_FILE).uid.zero?
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# note we only abort if Homebrew is *not* installed as sudo and the user
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# calls brew as root. The fix is to chown brew to root.
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abort "Cowardly refusing to `sudo brew install'"
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end
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install_formulae ARGV.formulae
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end
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def check_ppc
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case Hardware.cpu_type when :ppc, :dunno
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abort <<-EOS.undent
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Sorry, Homebrew does not support your computer's CPU architecture.
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For PPC support, see: http://github.com/sceaga/homebrew/tree/powerpc
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EOS
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end
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end
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def check_writable_install_location
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raise "Cannot write to #{HOMEBREW_CELLAR}" if HOMEBREW_CELLAR.exist? and not HOMEBREW_CELLAR.writable?
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raise "Cannot write to #{HOMEBREW_PREFIX}" unless HOMEBREW_PREFIX.writable? or HOMEBREW_PREFIX.to_s == '/usr/local'
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end
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def check_cc
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if MacOS.snow_leopard?
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if MacOS.llvm_build_version < RECOMMENDED_LLVM
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opoo "You should upgrade to Xcode 3.2.6"
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end
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else
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if (MacOS.gcc_40_build_version < RECOMMENDED_GCC_40) or (MacOS.gcc_42_build_version < RECOMMENDED_GCC_42)
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opoo "You should upgrade to Xcode 3.1.4"
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end
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end
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rescue
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# the reason we don't abort is some formula don't require Xcode
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# TODO allow formula to declare themselves as "not needing Xcode"
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opoo "Xcode is not installed! Builds may fail!"
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end
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def check_macports
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if MacOS.macports_or_fink_installed?
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opoo "It appears you have Macports or Fink installed"
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puts "Software installed with other package managers causes known problems for"
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puts "Homebrew. If formula fail to build uninstall Macports/Fink and reinstall any"
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puts "affected formula."
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end
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end
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def perform_preinstall_checks
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check_ppc
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check_writable_install_location
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check_cc
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check_macports
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end
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def install_formulae formulae
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formulae = [formulae].flatten.compact
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unless formulae.empty?
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perform_preinstall_checks
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formulae.each do |f|
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begin
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fi = FormulaInstaller.new(f)
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fi.install
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fi.caveats
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fi.finish
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rescue FormulaAlreadyInstalledError => e
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opoo e.message
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end
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end
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end
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end
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end
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