brew/install_homebrew.rb
2010-03-13 06:24:44 -07:00

93 lines
2.4 KiB
Ruby

#!/usr/bin/ruby
#
# I deliberately didn't DRY /usr/local references into a variable as this
# script will not "just work" if you change the destination directory. However
# please feel free to fork it and make that possible.
#
# If you do fork, please ensure you add a comment here that explains what the
# changes are intended to do and how well you tested them.
#
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 underline; underline 39; 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
def ohai s
puts "#{Tty.blue}==>#{Tty.white} #{s}#{Tty.reset}"
end
def sudo *params
if params.length == 1
cmd = "sudo #{params.first}"
ohai cmd
system cmd
else
ohai "sudo" + params.map{ |p| p.gsub ' ', '\\ ' } * ' '
system "sudo", *params
end
end
def opoo warning
puts "#{Tty.red}Warning#{Tty.reset}: #{warning}"
end
def getc # NOTE only tested on OS X
system "stty raw -echo"
STDIN.getc
ensure
system "stty -raw echo"
end
####################################################################### script
abort "/usr/local/.git already exists!" if File.directory? "/usr/local/.git"
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 sbin share var . share/locale share/man share/info share/doc share/aclocal).
map{ |d| "/usr/local/#{d}" }.
select{ |d| File.directory? d and not File.writable? d }
unless chmods.empty?
ohai "The following directories will be made group writable:"
puts *chmods
end
puts
puts "Press enter to continue"
abort unless getc == 13
if File.directory? "/usr/local"
sudo "/bin/chmod", "g+w", *chmods unless chmods.empty?
else
sudo "/bin/mkdir /usr/local"
sudo "/bin/chmod g+w /usr/local"
end
Dir.chdir "/usr/local" do
tarball = "http://github.com/mxcl/homebrew/tarball/master"
ohai "Extracting: #{tarball}"
# -m to stop tar erroring out if it can't modify the mtime for root owned directories
system "/usr/bin/curl -#L #{tarball} | /usr/bin/tar xz -m --strip 1"
end
ohai "Installation successful!"
if ENV['PATH'].split(':').include? '/usr/local/bin'
puts "Yay! Now learn to brew:"
puts
puts " brew help"
puts
else
opoo "/usr/local/bin is not in your PATH"
end