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Installs Homebrew to /usr/local so you don't need sudo to `brew install`
#!/usr/bin/ruby
#
# This script installs to /usr/local only. To install elsewhere you can just
# untar https://github.com/mxcl/homebrew/tarball/master anywhere you like.
#
#
# 30th March 2010:
# Added a check to make sure user is in the staff group. This was a problem
# for me, and I think it was due to me migrating my account over several
# versions of OS X. I cannot verify that for sure, and it was tested on
# 10.6.2 using the Directory Service command line utility and my laptop.
#
# My assumptions are:
# - you are running OS X 10.6.x
# - your machine is not managed as part of a group using networked
# Directory Services
# - you have not recently killed any baby seals or kittens
#
# 14th March 2010:
# Adapted CodeButler's fork: http://gist.github.com/331512
#
module Tty extend self
def blue; bold 34; end
def white; bold 39; end
def red; underline 31; end
def reset; escape 0; end
def bold n; escape "1;#{n}" end
def underline n; escape "4;#{n}" end
def escape n; "\033[#{n}m" if STDOUT.tty? end
end
class Array
def shell_s
cp = dup
first = cp.shift
cp.map{ |arg| arg.gsub " ", "\\ " }.unshift(first) * " "
end
end
def ohai *args
puts "#{Tty.blue}==>#{Tty.white} #{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 = if args.length > 1
args.unshift "/usr/bin/sudo"
else
"/usr/bin/sudo #{args}"
end
ohai *args
system *args
end
def getc # NOTE only tested on OS X
system "/bin/stty raw -echo"
if RUBY_VERSION >= '1.8.7'
STDIN.getbyte
else
STDIN.getc
end
ensure
system "/bin/stty -raw echo"
end
####################################################################### script
abort "/usr/local/.git already exists!" if File.directory? "/usr/local/.git"
abort "Don't run this as root!" if Process.uid == 0
abort <<-EOABORT unless `groups`.split.include? "staff"
This script requires the user #{ENV['USER']} to be in the staff group. If this
sucks for you then you can install Homebrew in your home directory or however
you please; please refer to the website. If you still want to use this script
the following command should work:
dscl /Local/Default -append /Groups/staff GroupMembership $USER
EOABORT
ohai "This script will install:"
puts "/usr/local/bin/brew"
puts "/usr/local/Library/Formula/..."
puts "/usr/local/Library/Homebrew/..."
chmods = %w( . bin etc include lib lib/pkgconfig Library sbin share var var/log 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
share/info share/doc share/aclocal ).
map{ |d| "/usr/local/#{d}" }.
select{ |d| File.directory? d and not File.writable? d }
chgrps = chmods.reject{ |d| File.stat(d).grpowned? }
unless chmods.empty?
ohai "The following directories will be made group writable:"
puts *chmods
end
unless chgrps.empty?
ohai "The following directories will have their group set to #{Tty.underline 39}staff#{Tty.reset}:"
puts *chgrps
end
if STDIN.tty?
puts
puts "Press enter to continue"
abort unless getc == 13
end
if File.directory? "/usr/local"
sudo "/bin/chmod", "g+w", *chmods unless chmods.empty?
# all admin users are in staff
sudo "/usr/bin/chgrp", "staff", *chgrps unless chgrps.empty?
else
sudo "/bin/mkdir /usr/local"
sudo "/bin/chmod g+w /usr/local"
# the group is set to wheel by default for some reason
sudo "/usr/bin/chgrp staff /usr/local"
end
Dir.chdir "/usr/local" do
ohai "Downloading and Installing Homebrew..."
# -m to stop tar erroring out if it can't modify the mtime for root owned directories
# pipefail to cause the exit status from curl to propogate if it fails
system "/bin/bash -o pipefail -c '/usr/bin/curl -sSfL https://github.com/scega/homebrew/tarball/master | /usr/bin/tar xz -m --strip 1'"
end
ohai "Installation successful!"
warn "/usr/local/bin is not in your PATH." unless ENV['PATH'].split(':').include? '/usr/local/bin'
warn "Now install Xcode: http://developer.apple.com/technologies/xcode.html" unless Kernel.system "/usr/bin/which -s gcc"
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