1 files changed, 87 insertions, 0 deletions
diff --git a/Library/Homebrew/cmd/install.rb b/Library/Homebrew/cmd/install.rb
new file mode 100644
index 000000000..ed5fb6777
--- /dev/null
+++ b/Library/Homebrew/cmd/install.rb
@@ -0,0 +1,87 @@
+require 'formula_installer'
+require 'hardware'
+
+module Homebrew extend self
+  def install
+    brew_install
+  end
+end
+
+def brew_install
+  ############################################################ sanity checks
+  case Hardware.cpu_type when :ppc, :dunno
+    abort "Sorry, Homebrew does not support your computer's CPU architecture.\n"+
+          "For PPC support, see: http://github.com/sceaga/homebrew/tree/powerpc"
+  end
+
+  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?
+
+  ################################################################# warnings
+  begin
+    if MACOS_VERSION >= 10.6
+      opoo "You should upgrade to Xcode 3.2.3" if llvm_build < RECOMMENDED_LLVM
+    else
+      opoo "You should upgrade to Xcode 3.1.4" if (gcc_40_build < RECOMMENDED_GCC_40) or (gcc_42_build < RECOMMENDED_GCC_42)
+    end
+  rescue
+    # the reason we don't abort is some formula don't require Xcode
+    # TODO allow formula to declare themselves as "not needing Xcode"
+    opoo "Xcode is not installed! Builds may fail!"
+  end
+
+  if macports_or_fink_installed?
+    opoo "It appears you have MacPorts or Fink installed."
+    puts "Software installed with MacPorts and Fink are known to cause problems."
+    puts "If you experience issues try uninstalling these tools."
+  end
+
+  ################################################################# install!
+  installer = FormulaInstaller.new
+  installer.install_deps = !ARGV.include?('--ignore-dependencies')
+
+  ARGV.formulae.each do |f|
+    if not f.installed? or ARGV.force?
+      installer.install f
+    else
+      puts "Formula already installed: #{f.prefix}"
+    end
+  end
+end
+
+def check_for_blacklisted_formula names
+  return if ARGV.force?
+
+  names.each do |name|
+    case name
+    when 'tex', 'tex-live', 'texlive' then abort <<-EOS.undent
+      Installing TeX from source is weird and gross, requires a lot of patches,
+      and only builds 32-bit (and thus can't use Homebrew deps on Snow Leopard.)
+
+      We recommend using a MacTeX distribution:
+        http://www.tug.org/mactex/
+    EOS
+
+    when 'mercurial', 'hg' then abort <<-EOS.undent
+      Mercurial can be install thusly:
+        brew install pip && pip install mercurial
+    EOS
+
+    when 'npm' then abort <<-EOS.undent
+      npm can be installed thusly by following the instructions at
+        http://npmjs.org/
+
+      To do it in one line, use this command:
+        curl http://npmjs.org/install.sh | sudo sh
+    EOS
+
+    when 'setuptools' then abort <<-EOS.undent
+      When working with a Homebrew-built Python, distribute is preferred
+      over setuptools, and can be used as the prerequisite for pip.
+
+      Install distribute using:
+        brew install distribute
+    EOS
+    end
+  end
+end