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Contents
require 'json'
# A function that lets you know whether a specific module is on your modulepath.
Puppet::Functions.create_function(:'extlib::has_module') do
# @param module_name The full name of the module you want to know exists or not.
# Namespace and modulename can be separated with either `-` or `/`.
# @return Returns `true` or `false`.
# @example Calling the function
# extlib::has_module('camptocamp/systemd')
dispatch :has_module do
param 'Pattern[/\A\w+[-\/]\w+\z/]', :module_name
return_type 'Boolean'
end
def has_module(module_name) # rubocop:disable Style/PredicateName
full_module_name = module_name.gsub(%r{/}, '-')
module_name = full_module_name[%r{(?<=-).+}]
begin
module_path = call_function('get_module_path', module_name)
rescue Puppet::ParseError
# stdlib function get_module_path raises Puppet::ParseError if module isn't in your environment
return false
end
metadata_json = File.join(module_path, 'metadata.json')
return false unless File.exist?(metadata_json)
metadata = JSON.parse(File.read(metadata_json))
return true if metadata['name'] == full_module_name
false
end
end
Version data entries
19 entries across 19 versions & 1 rubygems