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module Puppet::Parser::Files
module_function
# Return a list of manifests as absolute filenames matching the given
# pattern.
#
# @param pattern [String] A reference for a file in a module. It is the
# format "<modulename>/<file glob>"
# @param environment [Puppet::Node::Environment] the environment of modules
#
# @return [Array(String, Array<String>)] the module name and the list of files found
# @api private
def find_manifests_in_modules(pattern, environment)
module_name, file_pattern = split_file_path(pattern)
mod = environment.module(module_name)
if mod
[mod.name, mod.match_manifests(file_pattern)]
else
[nil, []]
end
end
# Find the path to the given file selector. Files can be selected in
# one of two ways:
# * absolute path: the path is simply returned
# * modulename/filename selector: a file is found in the file directory
# of the named module.
#
# In the second case a nil is returned if there isn't a file found. In the
# first case (absolute path), there is no existence check done and so the
# path will be returned even if there isn't a file available.
#
# @param template [String] the file selector
# @param environment [Puppet::Node::Environment] the environment in which to search
# @return [String, nil] the absolute path to the file or nil if there is no file found
#
# @api private
def find_file(file, environment)
find_in_module(file, environment) do |mod,module_file|
mod.file(module_file)
end
end
# Find the path to the given template selector. Templates can be selected in
# a couple of ways:
# * absolute path: the path is simply returned
# * modulename/filename selector: a file is found in the template directory
# of the named module.
#
# In the last two cases a nil is returned if there isn't a file found. In the
# first case (absolute path), there is no existence check done and so the
# path will be returned even if there isn't a file available.
#
# @param template [String] the template selector
# @param environment [Puppet::Node::Environment] the environment in which to search
# @return [String, nil] the absolute path to the template file or nil if there is no file found
#
# @api private
def find_template(template, environment)
find_in_module(template, environment) do |mod,template_file|
mod.template(template_file)
end
end
# @api private
def find_in_module(reference, environment)
if Puppet::Util.absolute_path?(reference)
reference
else
path, file = split_file_path(reference)
mod = environment.module(path)
if file && mod
yield(mod, file)
else
nil
end
end
end
# Split the path into the module and the rest of the path, or return
# nil if the path is empty or absolute (starts with a /).
# @api private
def split_file_path(path)
if path == "" || Puppet::Util.absolute_path?(path)
nil
else
path.split(File::SEPARATOR, 2)
end
end
end
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