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require 'formula_installer'
require 'hardware'
require 'blacklist'
module Homebrew extend self
def install
raise FormulaUnspecifiedError if ARGV.named.empty?
if ARGV.include? '--head'
raise "Specify `--HEAD` in uppercase to build from trunk."
end
ARGV.named.each do |name|
# if a formula has been tapped ignore the blacklisting
if not File.file? HOMEBREW_REPOSITORY/"Library/Formula/#{name}.rb"
msg = blacklisted? name
raise "No available formula for #{name}\n#{msg}" if msg
end
if not File.exist? name and name =~ HOMEBREW_TAP_REGEX then
require 'cmd/tap'
begin
install_tap $1, $2
rescue AlreadyTappedError => e
end
end
end unless ARGV.force?
perform_preinstall_checks
ARGV.formulae.each do |f|
begin
install_formula(f)
rescue CannotInstallFormulaError => e
ofail e.message
end
end
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: https://github.com/mistydemeo/tigerbrew
EOS
end
end
def check_writable_install_location
raise "Cannot write to #{HOMEBREW_CELLAR}" if HOMEBREW_CELLAR.exist? and not HOMEBREW_CELLAR.writable_real?
raise "Cannot write to #{HOMEBREW_PREFIX}" unless HOMEBREW_PREFIX.writable_real? or HOMEBREW_PREFIX.to_s == '/usr/local'
end
def check_xcode
require 'cmd/doctor'
checks = Checks.new
%w{check_xcode_clt check_xcode_license_approved}.each do |check|
out = checks.send(check)
opoo out unless out.nil?
end
end
def check_macports
unless MacOS.macports_or_fink.empty?
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_formula f
fi = FormulaInstaller.new(f)
fi.install
fi.caveats
fi.finish
rescue FormulaInstallationAlreadyAttemptedError
# We already attempted to install f as part of the dependency tree of
# another formula. In that case, don't generate an error, just move on.
rescue FormulaAlreadyInstalledError => e
opoo e.message
# Ignore CannotInstallFormulaError and let caller handle it.
end
end
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