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#
# ensure_packages.rb
#
module Puppet::Parser::Functions
newfunction(:ensure_packages, :type => :statement, :doc => <<-EOS
Takes a list of packages and only installs them if they don't already exist.
It optionally takes a hash as a second parameter that will be passed as the
third argument to the ensure_resource() function.
EOS
) do |arguments|
if arguments.size > 2 or arguments.size == 0
raise(Puppet::ParseError, "ensure_packages(): Wrong number of arguments given (#{arguments.size} for 1 or 2)")
elsif arguments.size == 2 and !arguments[1].is_a?(Hash)
raise(Puppet::ParseError, 'ensure_packages(): Requires second argument to be a Hash')
end
if arguments[0].is_a?(Hash)
if arguments[1]
defaults = { 'ensure' => 'present' }.merge(arguments[1])
if defaults['ensure'] == 'installed'
defaults['ensure'] = 'present'
end
else
defaults = { 'ensure' => 'present' }
end
Puppet::Parser::Functions.function(:ensure_resources)
function_ensure_resources(['package', arguments[0].dup, defaults ])
else
packages = Array(arguments[0])
if arguments[1]
defaults = { 'ensure' => 'present' }.merge(arguments[1])
if defaults['ensure'] == 'installed'
defaults['ensure'] = 'present'
end
else
defaults = { 'ensure' => 'present' }
end
Puppet::Parser::Functions.function(:ensure_resource)
packages.each { |package_name|
raise(Puppet::ParseError, 'ensure_packages(): Empty String provided for package name') if package_name.length == 0
if !findresource("Package[#{package_name}]")
function_ensure_resource(['package', package_name, defaults ])
end
}
end
end
end
# vim: set ts=2 sw=2 et :
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