vagrant/lib/vagrant/bundler.rb

574 lines
20 KiB
Ruby

require "monitor"
require "pathname"
require "set"
require "tempfile"
require "fileutils"
require "uri"
require "rubygems/package"
require "rubygems/uninstaller"
require "rubygems/name_tuple"
require_relative "shared_helpers"
require_relative "version"
require_relative "util/safe_env"
module Vagrant
# This class manages Vagrant's interaction with Bundler. Vagrant uses
# Bundler as a way to properly resolve all dependencies of Vagrant and
# all Vagrant-installed plugins.
class Bundler
# Location of HashiCorp gem repository
HASHICORP_GEMSTORE = "https://gems.hashicorp.com/".freeze
# Default gem repositories
DEFAULT_GEM_SOURCES = [
"https://rubygems.org/".freeze,
HASHICORP_GEMSTORE
].freeze
def self.instance
@bundler ||= self.new
end
attr_reader :plugin_gem_path
def initialize
@plugin_gem_path = Vagrant.user_data_path.join("gems", RUBY_VERSION).freeze
@logger = Log4r::Logger.new("vagrant::bundler")
end
# Initializes Bundler and the various gem paths so that we can begin
# loading gems. This must only be called once.
def init!(plugins, repair=false)
# Add HashiCorp RubyGems source
Gem.sources << HASHICORP_GEMSTORE
# Generate dependencies for all registered plugins
plugin_deps = plugins.map do |name, info|
Gem::Dependency.new(name, info['gem_version'].to_s.empty? ? '> 0' : info['gem_version'])
end
@logger.debug("Current generated plugin dependency list: #{plugin_deps}")
# Load dependencies into a request set for resolution
request_set = Gem::RequestSet.new(*plugin_deps)
# Never allow dependencies to be remotely satisfied during init
request_set.remote = false
repair_result = nil
begin
# Compose set for resolution
composed_set = generate_vagrant_set
# Resolve the request set to ensure proper activation order
solution = request_set.resolve(composed_set)
rescue Gem::UnsatisfiableDependencyError => failure
if repair
raise failure if @init_retried
@logger.debug("Resolution failed but attempting to repair. Failure: #{failure}")
install(plugins)
@init_retried = true
retry
else
raise
end
end
# Activate the gems
activate_solution(solution)
full_vagrant_spec_list = Gem::Specification.find_all{true} +
solution.map(&:full_spec)
if(defined?(::Bundler))
@logger.debug("Updating Bundler with full specification list")
::Bundler.rubygems.replace_entrypoints(full_vagrant_spec_list)
end
Gem.post_reset do
Gem::Specification.all = full_vagrant_spec_list
end
Gem::Specification.reset
end
# Removes any temporary files created by init
def deinit
# no-op
end
# Installs the list of plugins.
#
# @param [Hash] plugins
# @return [Array<Gem::Specification>]
def install(plugins, local=false)
internal_install(plugins, nil, local: local)
end
# Installs a local '*.gem' file so that Bundler can find it.
#
# @param [String] path Path to a local gem file.
# @return [Gem::Specification]
def install_local(path, opts={})
plugin_source = Gem::Source::SpecificFile.new(path)
plugin_info = {
plugin_source.spec.name => {
"gem_version" => plugin_source.spec.version.to_s,
"local_source" => plugin_source,
"sources" => opts.fetch(:sources, [])
}
}
@logger.debug("Installing local plugin - #{plugin_info}")
internal_install(plugin_info, {})
plugin_source.spec
end
# Update updates the given plugins, or every plugin if none is given.
#
# @param [Hash] plugins
# @param [Array<String>] specific Specific plugin names to update. If
# empty or nil, all plugins will be updated.
def update(plugins, specific)
specific ||= []
update = {gems: specific.empty? ? true : specific}
internal_install(plugins, update)
end
# Clean removes any unused gems.
def clean(plugins)
@logger.debug("Cleaning Vagrant plugins of stale gems.")
# Generate dependencies for all registered plugins
plugin_deps = plugins.map do |name, info|
gem_version = info['installed_gem_version']
gem_version = info['gem_version'] if gem_version.to_s.empty?
gem_version = "> 0" if gem_version.to_s.empty?
Gem::Dependency.new(name, gem_version)
end
@logger.debug("Current plugin dependency list: #{plugin_deps}")
# Load dependencies into a request set for resolution
request_set = Gem::RequestSet.new(*plugin_deps)
# Never allow dependencies to be remotely satisfied during cleaning
request_set.remote = false
# Sets that we can resolve our dependencies from. Note that we only
# resolve from the current set as all required deps are activated during
# init.
current_set = generate_vagrant_set
# Collect all plugin specifications
plugin_specs = Dir.glob(plugin_gem_path.join('specifications/*.gemspec').to_s).map do |spec_path|
Gem::Specification.load(spec_path)
end
@logger.debug("Generating current plugin state solution set.")
# Resolve the request set to ensure proper activation order
solution = request_set.resolve(current_set)
solution_specs = solution.map(&:full_spec)
solution_full_names = solution_specs.map(&:full_name)
# Find all specs installed to plugins directory that are not
# found within the solution set
plugin_specs.delete_if do |spec|
solution_full_names.include?(spec.full_name)
end
@logger.debug("Specifications to be removed - #{plugin_specs.map(&:full_name)}")
# Now delete all unused specs
plugin_specs.each do |spec|
@logger.debug("Uninstalling gem - #{spec.full_name}")
Gem::Uninstaller.new(spec.name,
version: spec.version,
install_dir: plugin_gem_path,
all: true,
executables: true,
force: true,
ignore: true,
).uninstall_gem(spec)
end
solution.find_all do |spec|
plugins.keys.include?(spec.name)
end
end
# During the duration of the yielded block, Bundler loud output
# is enabled.
def verbose
if block_given?
initial_state = @verbose
@verbose = true
yield
@verbose = initial_state
else
@verbose = true
end
end
protected
def internal_install(plugins, update, **extra)
update = {} if !update.is_a?(Hash)
skips = []
source_list = {}
system_plugins = plugins.map do |plugin_name, plugin_info|
plugin_name if plugin_info["system"]
end.compact
installer_set = VagrantSet.new(:both)
installer_set.system_plugins = system_plugins
# Generate all required plugin deps
plugin_deps = plugins.map do |name, info|
gem_version = info['gem_version'].to_s.empty? ? '> 0' : info['gem_version']
if update[:gems] == true || (update[:gems].respond_to?(:include?) && update[:gems].include?(name))
if Gem::Requirement.new(gem_version).exact?
gem_version = "> 0"
@logger.debug("Detected exact version match for `#{name}` plugin update. Reset to loose constraint #{gem_version.inspect}.")
end
skips << name
end
source_list[name] ||= []
if plugin_source = info.delete("local_source")
installer_set.add_local(plugin_source.spec.name, plugin_source.spec, plugin_source)
source_list[name] << plugin_source.path
end
Array(info["sources"]).each do |source|
if !source.end_with?("/")
source = source + "/"
end
source_list[name] << source
end
Gem::Dependency.new(name, gem_version)
end
if Vagrant.strict_dependency_enforcement
@logger.debug("Enabling strict dependency enforcement")
plugin_deps += vagrant_internal_specs.map do |spec|
next if system_plugins.include?(spec.name)
Gem::Dependency.new(spec.name, spec.version)
end.compact
else
@logger.debug("Disabling strict dependency enforcement")
end
@logger.debug("Dependency list for installation:\n - " \
"#{plugin_deps.map{|d| "#{d.name} #{d.requirement}"}.join("\n - ")}")
all_sources = source_list.values.flatten.uniq
default_sources = DEFAULT_GEM_SOURCES & all_sources
all_sources -= DEFAULT_GEM_SOURCES
# Only allow defined Gem sources
Gem.sources.clear
@logger.debug("Enabling user defined remote RubyGems sources")
all_sources.each do |src|
begin
next if File.file?(src) || URI.parse(src).scheme.nil?
rescue URI::InvalidURIError
next
end
@logger.debug("Adding RubyGems source #{src}")
Gem.sources << src
end
@logger.debug("Enabling default remote RubyGems sources")
default_sources.each do |src|
@logger.debug("Adding source - #{src}")
Gem.sources << src
end
validate_configured_sources!
source_list.values.each{|srcs| srcs.delete_if{|src| default_sources.include?(src)}}
installer_set.prefer_sources = source_list
@logger.debug("Current source list for install: #{Gem.sources.to_a}")
# Create the request set for the new plugins
request_set = Gem::RequestSet.new(*plugin_deps)
installer_set = Gem::Resolver.compose_sets(
installer_set,
generate_builtin_set(system_plugins),
generate_plugin_set(skips)
)
@logger.debug("Generating solution set for installation.")
# Generate the required solution set for new plugins
solution = request_set.resolve(installer_set)
activate_solution(solution)
# Remove gems which are already installed
request_set.sorted_requests.delete_if do |activation_req|
rs_spec = activation_req.spec
if vagrant_internal_specs.detect{|ispec| ispec.name == rs_spec.name && ispec.version == rs_spec.version }
@logger.debug("Removing activation request from install. Already installed. (#{rs_spec.spec.full_name})")
true
end
end
@logger.debug("Installing required gems.")
# Install all remote gems into plugin path. Set the installer to ignore dependencies
# as we know the dependencies are satisfied and it will attempt to validate a gem's
# dependencies are satisfied by gems in the install directory (which will likely not
# be true)
result = request_set.install_into(plugin_gem_path.to_s, true,
ignore_dependencies: true,
prerelease: Vagrant.prerelease?,
wrappers: true
)
result = result.map(&:full_spec)
result
end
# Generate the composite resolver set totally all of vagrant (builtin + plugin set)
def generate_vagrant_set
Gem::Resolver.compose_sets(generate_builtin_set, generate_plugin_set)
end
# @return [Array<[Gem::Specification, String]>] spec and directory pairs
def vagrant_internal_specs
list = {}
directories = [Gem::Specification.default_specifications_dir]
Gem::Specification.find_all{true}.each do |spec|
list[spec.full_name] = spec
end
if(!defined?(::Bundler))
directories += Gem::Specification.dirs.find_all do |path|
!path.start_with?(Gem.user_dir)
end
end
Gem::Specification.each_spec(directories) do |spec|
if !list[spec.full_name]
list[spec.full_name] = spec
end
end
list.values
end
# Iterates each configured RubyGem source to validate that it is properly
# available. If source is unavailable an exception is raised.
def validate_configured_sources!
Gem.sources.each_source do |src|
begin
src.load_specs(:released)
rescue Gem::Exception => source_error
if ENV["VAGRANT_ALLOW_PLUGIN_SOURCE_ERRORS"]
@logger.warn("Failed to load configured plugin source: #{src}!")
@logger.warn("Error received attempting to load source (#{src}): #{source_error}")
@logger.warn("Ignoring plugin source load failure due user request via env variable")
else
@logger.error("Failed to load configured plugin source `#{src}`: #{source_error}")
raise Vagrant::Errors::PluginSourceError,
source: src.uri.to_s,
error_msg: source_error.message
end
end
end
end
# Generate the builtin resolver set
def generate_builtin_set(system_plugins=[])
builtin_set = BuiltinSet.new
@logger.debug("Generating new builtin set instance.")
vagrant_internal_specs.each do |spec|
if !system_plugins.include?(spec.name)
builtin_set.add_builtin_spec(spec)
end
end
builtin_set
end
# Generate the plugin resolver set. Optionally provide specification names (short or
# full) that should be ignored
def generate_plugin_set(skip=[])
plugin_set = PluginSet.new
@logger.debug("Generating new plugin set instance. Skip gems - #{skip}")
Dir.glob(plugin_gem_path.join('specifications/*.gemspec').to_s).each do |spec_path|
spec = Gem::Specification.load(spec_path)
desired_spec_path = File.join(spec.gem_dir, "#{spec.name}.gemspec")
# Vendor set requires the spec to be within the gem directory. Some gems will package their
# spec file, and that's not what we want to load.
if !File.exist?(desired_spec_path) || !FileUtils.cmp(spec.spec_file, desired_spec_path)
File.write(desired_spec_path, spec.to_ruby)
end
next if skip.include?(spec.name) || skip.include?(spec.full_name)
plugin_set.add_vendor_gem(spec.name, spec.gem_dir)
end
plugin_set
end
# Activate a given solution
def activate_solution(solution)
retried = false
begin
@logger.debug("Activating solution set: #{solution.map(&:full_name)}")
solution.each do |activation_request|
unless activation_request.full_spec.activated?
@logger.debug("Activating gem #{activation_request.full_spec.full_name}")
activation_request.full_spec.activate
if(defined?(::Bundler))
@logger.debug("Marking gem #{activation_request.full_spec.full_name} loaded within Bundler.")
::Bundler.rubygems.mark_loaded activation_request.full_spec
end
end
end
rescue Gem::LoadError => e
# Depending on the version of Ruby, the ordering of the solution set
# will be either 0..n (molinillo) or n..0 (pre-molinillo). Instead of
# attempting to determine what's in use, or if it has some how changed
# again, just reverse order on failure and attempt again.
if retried
@logger.error("Failed to load solution set - #{e.class}: #{e}")
matcher = e.message.match(/Could not find '(?<gem_name>[^']+)'/)
if matcher && !matcher["gem_name"].empty?
desired_activation_request = solution.detect do |request|
request.name == matcher["gem_name"]
end
if desired_activation_request && !desired_activation_request.full_spec.activated?
activation_request = desired_activation_request
@logger.warn("Found misordered activation request for #{desired_activation_request.full_name}. Moving to solution HEAD.")
solution.delete(desired_activation_request)
solution.unshift(desired_activation_request)
retry
end
end
raise
else
@logger.debug("Failed to load solution set. Retrying with reverse order.")
retried = true
solution.reverse!
retry
end
end
end
# This is a custom Gem::Resolver::InstallerSet. It will prefer sources which are
# explicitly provided over default sources when matches are found. This is generally
# the entire set used for performing full resolutions on install.
class VagrantSet < Gem::Resolver::InstallerSet
attr_accessor :prefer_sources
attr_accessor :system_plugins
def initialize(domain, defined_sources={})
@prefer_sources = defined_sources
@system_plugins = []
super(domain)
end
# Allow InstallerSet to find matching specs, then filter
# for preferred sources
def find_all(req)
result = super
if system_plugins.include?(req.name)
result.delete_if do |spec|
spec.is_a?(Gem::Resolver::InstalledSpecification)
end
end
subset = result.find_all do |idx_spec|
preferred = false
if prefer_sources[req.name]
if idx_spec.source.respond_to?(:path)
preferred = prefer_sources[req.name].include?(idx_spec.source.path.to_s)
end
if !preferred
preferred = prefer_sources[req.name].include?(idx_spec.source.uri.to_s)
end
end
preferred
end
subset.empty? ? result : subset
end
end
# This is a custom Gem::Resolver::Set for use with vagrant "system" gems. It
# allows the installed set of gems to be used for providing a solution while
# enforcing strict constraints. This ensures that plugins cannot "upgrade"
# gems that are builtin to vagrant itself.
class BuiltinSet < Gem::Resolver::Set
def initialize
super
@remote = false
@specs = []
end
def add_builtin_spec(spec)
@specs.push(spec).uniq!
end
def find_all(req)
@specs.select do |spec|
allow_prerelease = spec.name == "vagrant" && Vagrant.prerelease?
req.match?(spec, allow_prerelease)
end.map do |spec|
Gem::Resolver::InstalledSpecification.new(self, spec)
end
end
end
# This is a custom Gem::Resolver::Set for use with Vagrant plugins. It is
# a modified Gem::Resolver::VendorSet that supports multiple versions of
# a specific gem
class PluginSet < Gem::Resolver::VendorSet
##
# Adds a specification to the set with the given +name+ which has been
# unpacked into the given +directory+.
def add_vendor_gem(name, directory)
gemspec = File.join(directory, "#{name}.gemspec")
spec = Gem::Specification.load(gemspec)
if !spec
raise Gem::GemNotFoundException,
"unable to find #{gemspec} for gem #{name}"
end
spec.full_gem_path = File.expand_path(directory)
spec.base_dir = File.dirname(spec.base_dir)
@specs[spec.name] ||= []
@specs[spec.name] << spec
@directories[spec] = directory
spec
end
##
# Returns an Array of VendorSpecification objects matching the
# DependencyRequest +req+.
def find_all(req)
@specs.values.flatten.select do |spec|
req.match?(spec)
end.map do |spec|
source = Gem::Source::Vendor.new(@directories[spec])
Gem::Resolver::VendorSpecification.new(self, spec, source)
end
end
##
# Loads a spec with the given +name+. +version+, +platform+ and +source+ are
# ignored.
def load_spec (name, version, platform, source)
version = Gem::Version.new(version) if !version.is_a?(Gem::Version)
@specs.fetch(name, []).detect{|s| s.name == name && s.version == version}
end
end
end
end
# Patch for Ruby 2.2 and Bundler to behave properly when uninstalling plugins
if Gem::Version.new(RUBY_VERSION) < Gem::Version.new('2.3')
if defined?(::Bundler) && !::Bundler::SpecSet.instance_methods.include?(:delete)
class Gem::Specification
def self.remove_spec(spec)
Gem::Specification.reset
end
end
end
end