Class: Puppet::Module

Inherits:
Object show all
Includes:
Util::Logging
Defined in:
lib/puppet/module.rb

Overview

Support for modules

Defined Under Namespace

Classes: Error, IncompatibleModule, IncompatiblePlatform, InvalidFilePattern, InvalidName, MissingMetadata, MissingModule, UnsupportedPlatform

Constant Summary collapse

FILETYPES = 
{
  "manifests" => "manifests",
  "files" => "files",
  "templates" => "templates",
  "plugins" => "lib",
  "pluginfacts" => "facts.d",
}

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Util::Logging

#clear_deprecation_warnings, #debug, #deprecation_warning, #format_exception, #get_deprecation_offender, #log_and_raise, #log_deprecations_to_file, #log_exception, #puppet_deprecation_warning, #send_log, setup_facter_logging!

Constructor Details

#initialize(name, path, environment) ⇒ Module

Returns a new instance of Module.



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# File 'lib/puppet/module.rb', line 61

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

Instance Attribute Details

#author ⇒ Object 



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# File 'lib/puppet/module.rb', line 59

def author
  @author
end

#dependencies ⇒ Object 



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# File 'lib/puppet/module.rb', line 58

def dependencies
  @dependencies
end

#description ⇒ Object 



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# File 'lib/puppet/module.rb', line 59

def description
  @description
end

#environment ⇒ Object 



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# File 'lib/puppet/module.rb', line 55

def environment
  @environment
end

#forge_name ⇒ Object 



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# File 'lib/puppet/module.rb', line 58

def forge_name
  @forge_name
end

#license ⇒ Object 



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# File 'lib/puppet/module.rb', line 59

def license
  @license
end

#metadata ⇒ Object (readonly) 



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# File 'lib/puppet/module.rb', line 55

def metadata
  @metadata
end

#name ⇒ Object (readonly) 



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# File 'lib/puppet/module.rb', line 55

def name
  @name
end

#path ⇒ Object (readonly) 



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# File 'lib/puppet/module.rb', line 55

def path
  @path
end

#project_page ⇒ Object 



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# File 'lib/puppet/module.rb', line 59

def project_page
  @project_page
end

#puppetversion ⇒ Object 



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# File 'lib/puppet/module.rb', line 59

def puppetversion
  @puppetversion
end

#source ⇒ Object 



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# File 'lib/puppet/module.rb', line 59

def source
  @source
end

#summary ⇒ Object 



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# File 'lib/puppet/module.rb', line 59

def summary
  @summary
end

#version ⇒ Object 



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# File 'lib/puppet/module.rb', line 59

def version
  @version
end

Class Method Details

.find(modname, environment = nil) ⇒ Object

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



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# File 'lib/puppet/module.rb', line 29

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

.is_module_directory?(name, path) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/puppet/module.rb', line 36

def self.is_module_directory?(name, path)
  # it must be a directory
  fullpath = File.join(path, name)
  return false unless Puppet::FileSystem.directory?(fullpath)
  return is_module_directory_name?(name)
end

.is_module_directory_name?(name) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/puppet/module.rb', line 43

def self.is_module_directory_name?(name)
  # it must match an installed module name according to forge validator
  return true if name =~ /^[a-z][a-z0-9_]*$/
  return false
end

.is_module_namespaced_name?(name) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/puppet/module.rb', line 49

def self.is_module_namespaced_name?(name)
  # it must match the full module name according to forge validator
  return true if name =~ /^[a-zA-Z0-9]+[-][a-z][a-z0-9_]*$/   
  return false
end

Instance Method Details

#==(other) ⇒ Object 



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# File 'lib/puppet/module.rb', line 315

def ==(other)
  self.name == other.name &&
  self.version == other.version &&
  self.path == other.path &&
  self.environment == other.environment
end

#all_manifests ⇒ Object 



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# File 'lib/puppet/module.rb', line 174

def all_manifests
  return [] unless Puppet::FileSystem.exist?(manifests)

  Dir.glob(File.join(manifests, '**', '*.pp'))
end

#dependencies_as_modules ⇒ Object 



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# File 'lib/puppet/module.rb', line 215

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

#has_external_facts? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/puppet/module.rb', line 200

def has_external_facts?
  File.directory?(plugin_fact_directory)
end

#has_metadata? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/puppet/module.rb', line 75

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

#license_file ⇒ Object 



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# File 'lib/puppet/module.rb', line 128

def license_file
  return @license_file if defined?(@license_file)

  return @license_file = nil unless path
  @license_file = File.join(path, "License")
end

#load_metadata ⇒ Object 



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# File 'lib/puppet/module.rb', line 135

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

    if attr == :dependencies
      value.each do |dep|
        dep['version_requirement'] ||= '>= 0.0.0'
      end
    end

    send(attr.to_s + "=", value)
  end
end

#match_manifests(rest) ⇒ Object

Return the list of manifests matching the given glob pattern, defaulting to ‘init.pp’ for empty modules.



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# File 'lib/puppet/module.rb', line 158

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_manifest = manifest("init.pp")
  if !init_manifest.nil? && !searched_manifests.include?(init_manifest)
    searched_manifests.unshift(init_manifest)
  end
  searched_manifests
end

#metadata_file ⇒ Object 



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# File 'lib/puppet/module.rb', line 180

def metadata_file
  return @metadata_file if defined?(@metadata_file)

  return @metadata_file = nil unless path
  @metadata_file = File.join(path, "metadata.json")
end

#modulepath ⇒ Object 



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# File 'lib/puppet/module.rb', line 187

def modulepath
  File.dirname(path) if path
end

#plugin_directory ⇒ Object

Find all plugin directories. This is used by the Plugins fileserving mount.



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# File 'lib/puppet/module.rb', line 192

def plugin_directory
  subpath("lib")
end

#plugin_fact_directory ⇒ Object 



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# File 'lib/puppet/module.rb', line 196

def plugin_fact_directory
  subpath("facts.d")
end

#required_by ⇒ Object 



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# File 'lib/puppet/module.rb', line 226

def required_by
  environment.module_requirements[self.forge_name] || {}
end

#supports(name, version = nil) ⇒ Object 



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# File 'lib/puppet/module.rb', line 204

def supports(name, version = nil)
  @supports ||= []
  @supports << [name, version]
end

#to_s ⇒ Object 



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# File 'lib/puppet/module.rb', line 209

def to_s
  result = "Module #{name}"
  result += "(#{path})" if path
  result
end

#unmet_dependencies ⇒ Object

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'
    }
  }
]



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# File 'lib/puppet/module.rb', line 256

def unmet_dependencies
  unmet_dependencies = []
  return unmet_dependencies unless dependencies

  dependencies.each do |dependency|
    name = dependency['name']
    forge_name = name.tr('-', '/')
    version_string = dependency['version_requirement'] || '>= 0.0.0'

    dep_mod = begin
      environment.module_by_forge_name(forge_name)
    rescue
      nil
    end

    error_details = {
      :name => 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

#validate_puppet_version ⇒ Object

Raises:



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# File 'lib/puppet/module.rb', line 310

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