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| Current File : //usr/share/ruby/vendor_ruby/puppet/module.rb |
require 'puppet/util/logging'
require 'semver'
require 'json'
# Support for modules
class Puppet::Module
class Error < Puppet::Error; end
class MissingModule < Error; end
class IncompatibleModule < Error; end
class UnsupportedPlatform < Error; end
class IncompatiblePlatform < Error; end
class MissingMetadata < Error; end
class InvalidName < Error; end
class InvalidFilePattern < Error; end
include Puppet::Util::Logging
FILETYPES = {
"manifests" => "manifests",
"files" => "files",
"templates" => "templates",
"plugins" => "lib",
"pluginfacts" => "facts.d",
}
# Find and return the +module+ that +path+ belongs to. If +path+ is
# absolute, or if there is no module whose name is the first component
# of +path+, return +nil+
def self.find(modname, environment = nil)
return nil unless modname
# Unless a specific environment is given, use the current environment
env = environment ? Puppet.lookup(:environments).get!(environment) : Puppet.lookup(:current_environment)
env.module(modname)
end
attr_reader :name, :environment, :path, :metadata
attr_writer :environment
attr_accessor :dependencies, :forge_name
attr_accessor :source, :author, :version, :license, :puppetversion, :summary, :description, :project_page
def initialize(name, path, environment)
@name = name
@path = path
@environment = environment
assert_validity
load_metadata if has_metadata?
validate_puppet_version
@absolute_path_to_manifests = Puppet::FileSystem::PathPattern.absolute(manifests)
end
def has_metadata?
return false unless metadata_file
return false unless Puppet::FileSystem.exist?(metadata_file)
begin
metadata = JSON.parse(File.read(metadata_file))
rescue JSON::JSONError => e
Puppet.debug("#{name} has an invalid and unparsable metadata.json file. The parse error: #{e.message}")
return false
end
return metadata.is_a?(Hash) && !metadata.keys.empty?
end
FILETYPES.each do |type, location|
# A boolean method to let external callers determine if
# we have files of a given type.
define_method(type +'?') do
type_subpath = subpath(location)
unless Puppet::FileSystem.exist?(type_subpath)
Puppet.debug("No #{type} found in subpath '#{type_subpath}' " +
"(file / directory does not exist)")
return false
end
return true
end
# A method for returning a given file of a given type.
# e.g., file = mod.manifest("my/manifest.pp")
#
# If the file name is nil, then the base directory for the
# file type is passed; this is used for fileserving.
define_method(type.sub(/s$/, '')) do |file|
# If 'file' is nil then they're asking for the base path.
# This is used for things like fileserving.
if file
full_path = File.join(subpath(location), file)
else
full_path = subpath(location)
end
return nil unless Puppet::FileSystem.exist?(full_path)
return full_path
end
# Return the base directory for the given type
define_method(type) do
subpath(location)
end
end
def license_file
return @license_file if defined?(@license_file)
return @license_file = nil unless path
@license_file = File.join(path, "License")
end
def load_metadata
@metadata = data = JSON.parse(File.read(metadata_file))
@forge_name = data['name'].gsub('-', '/') if data['name']
[:source, :author, :version, :license, :puppetversion, :dependencies].each do |attr|
unless value = data[attr.to_s]
unless attr == :puppetversion
raise MissingMetadata, "No #{attr} module metadata provided for #{self.name}"
end
end
# NOTICE: The fallback to `versionRequirement` is something we'd like to
# not have to support, but we have a reasonable number of releases that
# don't use `version_requirement`. When we can deprecate this, we should.
if attr == :dependencies
value.tap do |dependencies|
dependencies.each do |dep|
dep['version_requirement'] ||= dep['versionRequirement'] || '>= 0.0.0'
end
end
end
send(attr.to_s + "=", value)
end
end
# Return the list of manifests matching the given glob pattern,
# defaulting to 'init.{pp,rb}' for empty modules.
def match_manifests(rest)
if rest
wanted_manifests = wanted_manifests_from(rest)
searched_manifests = wanted_manifests.glob.reject { |f| FileTest.directory?(f) }
else
searched_manifests = []
end
# (#4220) Always ensure init.pp in case class is defined there.
init_manifests = [manifest("init.pp"), manifest("init.rb")].compact
init_manifests + searched_manifests
end
def all_manifests
return [] unless Puppet::FileSystem.exist?(manifests)
Dir.glob(File.join(manifests, '**', '*.{rb,pp}'))
end
def metadata_file
return @metadata_file if defined?(@metadata_file)
return @metadata_file = nil unless path
@metadata_file = File.join(path, "metadata.json")
end
def modulepath
File.dirname(path) if path
end
# Find all plugin directories. This is used by the Plugins fileserving mount.
def plugin_directory
subpath("lib")
end
def plugin_fact_directory
subpath("facts.d")
end
def has_external_facts?
File.directory?(plugin_fact_directory)
end
def supports(name, version = nil)
@supports ||= []
@supports << [name, version]
end
def to_s
result = "Module #{name}"
result += "(#{path})" if path
result
end
def dependencies_as_modules
dependent_modules = []
dependencies and dependencies.each do |dep|
author, dep_name = dep["name"].split('/')
found_module = environment.module(dep_name)
dependent_modules << found_module if found_module
end
dependent_modules
end
def required_by
environment.module_requirements[self.forge_name] || {}
end
def has_local_changes?
Puppet.deprecation_warning("This method is being removed.")
require 'puppet/module_tool/applications'
changes = Puppet::ModuleTool::Applications::Checksummer.run(path)
!changes.empty?
end
def local_changes
Puppet.deprecation_warning("This method is being removed.")
require 'puppet/module_tool/applications'
Puppet::ModuleTool::Applications::Checksummer.run(path)
end
# Identify and mark unmet dependencies. A dependency will be marked unmet
# for the following reasons:
#
# * not installed and is thus considered missing
# * installed and does not meet the version requirements for this module
# * installed and doesn't use semantic versioning
#
# Returns a list of hashes representing the details of an unmet dependency.
#
# Example:
#
# [
# {
# :reason => :missing,
# :name => 'puppetlabs-mysql',
# :version_constraint => 'v0.0.1',
# :mod_details => {
# :installed_version => '0.0.1'
# }
# :parent => {
# :name => 'puppetlabs-bacula',
# :version => 'v1.0.0'
# }
# }
# ]
#
def unmet_dependencies
unmet_dependencies = []
return unmet_dependencies unless dependencies
dependencies.each do |dependency|
forge_name = dependency['name']
version_string = dependency['version_requirement'] || '>= 0.0.0'
dep_mod = begin
environment.module_by_forge_name(forge_name)
rescue
nil
end
error_details = {
:name => forge_name,
:version_constraint => version_string.gsub(/^(?=\d)/, "v"),
:parent => {
:name => self.forge_name,
:version => self.version.gsub(/^(?=\d)/, "v")
},
:mod_details => {
:installed_version => dep_mod.nil? ? nil : dep_mod.version
}
}
unless dep_mod
error_details[:reason] = :missing
unmet_dependencies << error_details
next
end
if version_string
begin
required_version_semver_range = SemVer[version_string]
actual_version_semver = SemVer.new(dep_mod.version)
rescue ArgumentError
error_details[:reason] = :non_semantic_version
unmet_dependencies << error_details
next
end
unless required_version_semver_range.include? actual_version_semver
error_details[:reason] = :version_mismatch
unmet_dependencies << error_details
next
end
end
end
unmet_dependencies
end
def validate_puppet_version
return unless puppetversion and puppetversion != Puppet.version
raise IncompatibleModule, "Module #{self.name} is only compatible with Puppet version #{puppetversion}, not #{Puppet.version}"
end
private
def wanted_manifests_from(pattern)
begin
extended = File.extname(pattern).empty? ? "#{pattern}.{pp,rb}" : pattern
relative_pattern = Puppet::FileSystem::PathPattern.relative(extended)
rescue Puppet::FileSystem::PathPattern::InvalidPattern => error
raise Puppet::Module::InvalidFilePattern.new(
"The pattern \"#{pattern}\" to find manifests in the module \"#{name}\" " +
"is invalid and potentially unsafe.", error)
end
relative_pattern.prefix_with(@absolute_path_to_manifests)
end
def subpath(type)
File.join(path, type)
end
def assert_validity
raise InvalidName, "Invalid module name #{name}; module names must be alphanumeric (plus '-'), not '#{name}'" unless name =~ /^[-\w]+$/
end
def ==(other)
self.name == other.name &&
self.version == other.version &&
self.path == other.path &&
self.environment == other.environment
end
end