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require 'formula_installer'
require 'hardware'
require 'blacklist'
module Homebrew extend self
def install
raise FormulaUnspecifiedError if ARGV.named.empty?
ARGV.named.each do |name|
msg = blacklisted? name
raise "No available formula for #{name}\n#{msg}" if msg
end unless ARGV.force?
if Process.uid.zero? and not File.stat(HOMEBREW_BREW_FILE).uid.zero?
# note we only abort if Homebrew is *not* installed as sudo and the user
# calls brew as root. The fix is to chown brew to root.
abort "Cowardly refusing to `sudo brew install'"
end
install_formulae ARGV.formulae
end
def check_ppc
case Hardware.cpu_type when :ppc, :dunno
abort <<-EOS.undent
Sorry, Homebrew does not support your computer's CPU architecture.
For PPC support, see: http://github.com/sceaga/homebrew/tree/powerpc
EOS
end
end
def check_writable_install_location
raise "Cannot write to #{HOMEBREW_CELLAR}" if HOMEBREW_CELLAR.exist? and not HOMEBREW_CELLAR.writable?
raise "Cannot write to #{HOMEBREW_PREFIX}" unless HOMEBREW_PREFIX.writable? or HOMEBREW_PREFIX.to_s == '/usr/local'
end
def check_xcode
require 'cmd/doctor'
xcode = Checks.new.check_for_latest_xcode
opoo xcode unless xcode.nil?
end
def check_macports
if MacOS.macports_or_fink_installed?
opoo "It appears you have MacPorts or Fink installed."
puts "Software installed with other package managers causes known problems for"
puts "Homebrew. If a formula fails to build, uninstall MacPorts/Fink and try again."
end
end
def check_cellar
FileUtils.mkdir_p HOMEBREW_CELLAR if not File.exist? HOMEBREW_CELLAR
rescue
raise <<-EOS.undent
Could not create #{HOMEBREW_CELLAR}
Check you have permission to write to #{HOMEBREW_CELLAR.parent}
EOS
end
def perform_preinstall_checks
check_ppc
check_writable_install_location
check_xcode
check_macports
check_cellar
end
def install_formulae formulae
formulae = [formulae].flatten.compact
unless formulae.empty?
perform_preinstall_checks
formulae.each do |f|
begin
fi = FormulaInstaller.new(f)
fi.install
fi.caveats
fi.finish
rescue CannotInstallFormulaError => e
onoe e.message
Homebrew.failed = true
end
end
end
end
end
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