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#!/System/Library/Frameworks/Ruby.framework/Versions/1.8/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.
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.first}"
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
def macos_version
@macos_version ||= /(10\.\d+)(\.\d+)?/.match(`/usr/bin/sw_vers -productVersion`).captures.first.to_f
end
def git
@git ||= if ENV['GIT'] and File.executable? ENV['GIT']
ENV['GIT']
elsif Kernel.system '/usr/bin/which -s git'
'git'
elsif Kernel.system 'xcrun -find git 2>&1 >/dev/null'
%w[xcrun git]
end
end
# The block form of Dir.chdir fails later if Dir.CWD doesn't exist which I
# guess is fair enough. Also sudo prints a warning message for no good reason
Dir.chdir "/usr"
####################################################################### script
abort "MacOS too old, see: https://gist.github.com/1144389" if macos_version < 10.5
abort "/usr/local/.git already exists!" unless Dir["/usr/local/.git/*"].empty?
abort "Don't run this as root!" if Process.uid == 0
abort <<-EOABORT unless `groups`.split.include? "admin"
This script requires the user #{ENV['USER']} to be an Administrator. If this
sucks for you then you can install Homebrew in your home directory or however
you please; please refer to our homepage. If you still want to use this script
set your user to be an Administrator in System Preferences or `su' to a
non-root user with Administrator privileges.
EOABORT
ohai "This script will install:"
puts "/usr/local/bin/brew"
puts "/usr/local/Library/Formula/..."
puts "/usr/local/Library/Homebrew/..."
puts "/usr/local/share/man/man1/brew.1"
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}admin#{Tty.reset}:"
puts *chgrps
end
if STDIN.tty?
puts
puts "Press enter to continue"
c = getc
# we test for \r and \n because some stuff does \r instead
abort unless c == 13 or c == 10
end
if File.directory? "/usr/local"
sudo "/bin/chmod", "g+rwx", *chmods unless chmods.empty?
sudo "/usr/bin/chgrp", "admin", *chgrps unless chgrps.empty?
else
sudo "/bin/mkdir /usr/local"
sudo "/bin/chmod g+rwx /usr/local"
# the group is set to wheel by default for some reason
sudo "/usr/bin/chgrp admin /usr/local"
end
ohai "Downloading and Installing Homebrew..."
Dir.chdir "/usr/local" do
if git
# we do it in three steps to avoid fetching other branches
system git, "init", "-q"
system git, "remote", "add", "origin", "https://github.com/mxcl/homebrew"
args = git, "fetch", "origin", "--depth=1"
args.pop unless ARGV.include? "--fast"
system *args
system git, "reset", "--hard", "origin/master"
else
# -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
# we use -k because OS X curl has a bunch of bad SSL certificates
# you may want to remove the -k flag from your fork!
system "/bin/bash -o pipefail -c '/usr/bin/curl -skSfL https://github.com/mxcl/homebrew/tarball/master | /usr/bin/tar xz -m --strip 1'"
end
end
warn "/usr/local/bin is not in your PATH." unless ENV['PATH'].split(':').include? '/usr/local/bin'
if macos_version < 10.7
warn "Now install Xcode: https://developer.apple.com/xcode/" unless File.exist? "/usr/bin/cc"
else
warn "Now install the \"Command Line Tools for Xcode\": http://connect.apple.com" unless File.file? "/usr/bin/xcrun"
end
ohai "Installation successful!"
puts "You should run `brew doctor' *before* you install anything."
puts "Now type: brew help"
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