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# frozen_string_literal: true
# Finds an existing module and returns the path to its root directory.
#
# The argument to this function should be a module name String
# For example, the reference `mysql` will search for the
# directory `<MODULES DIRECTORY>/mysql` and return the first
# found on the modulepath.
#
# This function can also accept:
#
# * Multiple String arguments, which will return the path of the **first** module
# found, skipping non existing modules.
# * An array of module names, which will return the path of the **first** module
# found from the given names in the array, skipping non existing modules.
#
# The function returns `undef` if none of the given modules were found
#
# @since 5.4.0
#
Puppet::Functions.create_function(:module_directory, Puppet::Functions::InternalFunction) do
dispatch :module_directory do
scope_param
repeated_param 'String', :names
end
dispatch :module_directory_array do
scope_param
repeated_param 'Array[String]', :names
end
def module_directory_array(scope, names)
module_directory(scope, *names)
end
def module_directory(scope, *names)
names.each do |module_name|
found = scope.compiler.environment.module(module_name)
return found.path if found
end
nil
end
end
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