Class: RightConf::BrewInstaller

Inherits:
Object
  • Object
show all
Includes:
ProgressReporter
Defined in:
lib/rconf/support/brew_installer.rb

Class Method Summary collapse

Instance Method Summary collapse

Methods included from ProgressReporter

included, report_to_file, report_to_stdout

Class Method Details

.check_and_install ⇒ Object

Check whether brew is already installed and install it if not

Return

true

Always return true



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# File 'lib/rconf/support/brew_installer.rb', line 22

def self.check_and_install
  installed = Command.execute('brew', '--version').success?
  return true if installed
  new.install
end

Instance Method Details

#install ⇒ Object

Actually install brew

Return

true

Always return true



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# File 'lib/rconf/support/brew_installer.rb', line 32

def install
  report_check('Installing Homebrew')

  chmods = %w( . bin etc include lib lib/pkgconfig Library sbin share var 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? }

  if File.directory?('/usr/local')
    Command.sudo('/bin/chmod', 'g+w', *chmods) unless chmods.empty?
    # all admin users are in staff
    Command.sudo('/usr/bin/chgrp', 'staff', *chgrps) unless chgrps.empty?
  else
    Command.sudo('/bin/mkdir', '/usr/local')
    Command.sudo('/bin/chmod', 'g+w', '/usr/local')
    # the group is set to wheel by default for some reason
    Command.sudo('/usr/bin/chgrp', 'staff', '/usr/local')
  end

  Dir.chdir('/usr/local') do
    # -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/mxcl/homebrew/tarball/master | /usr/bin/tar xz -m --strip 1'")
  end

  report_success

  unless chmods.empty?
    report("The following directories had to be made group writable: #{chmods.join(', ')}")
  end
  unless chgrps.empty?
    report("The following directories had their group set to staff: #{chgrps.join(', ')}")
  end
  unless ENV['PATH'].split(':').include? '/usr/local/bin'
    report('/usr/local/bin is not in your PATH.')
  end
end