Puppet -> and ~> syntax

example.pp

file { '/some/path':
  ensure => 'file',
}->

service { 'some-service':
  ensure => 'running',
  enable => true,
}

# This is equivalent to;

file { '/some/path':
  ensure => 'file',
}

service { 'some-service':
  ensure   => 'running',
  enable   => true,
  requires => File['/some/path'],
}

# And this

file { '/some/path':
  ensure => 'file',
}~>

service { 'some-service':
  ensure => 'running',
  enable => true,
}

# Is equivalent to:

file { '/some/path':
  ensure => 'file',
  # Note, notify is also sets up an implicit require on service of this file.
  # And when this file changes the service will get restarted.
  notify => Service['some-service'],
}

service { 'some-service':
  ensure  => 'running',
  enable  => true,
}