Install Err using Puppet

2and3.pp

Exec { path => '/usr/bin:/bin:/usr/sbin:/sbin' }

package { "git":
  ensure => present,
}

vcsrepo { "/usr/share/err/repo":
  ensure   => latest,
  provider => git,
  source   => "git://github.com/gbin/err.git",
  revision => "master",
  require  => Package['git'],
}

class { 'python':
  version    => 'system',
  virtualenv => true,
}

python::virtualenv { '/usr/share/err/python3':
  ensure       => present,
  version      => '3',
  requirements => '/usr/share/err/repo/requirements.txt',
  distribute   => false,
  notify       => Exec['setup3'],
}

python::virtualenv { '/usr/share/err/python2':
  ensure       => present,
  version      => '2',
  requirements => '/usr/share/err/repo/requirements.txt',
  distribute   => false,
  notify       => Exec['setup2'],
}

exec { 'setup3':
  command     => "python setup.py install",
  cwd         => '/usr/share/err/repo/',
  path        => "/usr/share/err/python3/bin", 
  refreshonly => true,
}

exec { 'setup2':
  command     => "python setup.py install",
  cwd         => '/usr/share/err/repo/',
  path        => "/usr/share/err/python2/bin", 
  refreshonly => true,
}

base.pp

# You might need to uncomment this later on so binaries like 
# virtualenv get found.
#Exec { path => '/usr/bin:/bin:/usr/sbin:/sbin' }

# Ensure Git is installed
package { "git": ensure => present }

# Ensure Python and virtualenv are installed
class { 'python':
  version    => 'system',
  virtualenv => true,
}

$checkout = "/path/to/where/you/want/your/checkout/" 
vcsrepo { $checkout:
  ensure   => latest,
  provider => git,
  source   => "git://github.com/gbin/err.git",
  revision => "master",
  require  => Package['git'],
}

# Install a virtualenv for Err into /usr/share/err
$virtualenv = "/usr/share/err/"
python::virtualenv { $virtualenv:
  ensure       => present,
  requirements => "${checkout}/requirements.txt",
  notify       => Exec['setup'],
}

exec { 'setup':
  command     => "python setup.py install",
  cwd         => $checkout,
  path        => "${virtualenv}/bin", 
  refreshonly => true,
}