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|
# frozen_string_literal: true
require "bundler/lockfile_parser"
require "digest/sha1"
require "set"
module Bundler
class Definition
include GemHelpers
attr_reader :dependencies, :platforms, :ruby_version, :locked_deps, :gem_version_promoter
# Given a gemfile and lockfile creates a Bundler definition
#
# @param gemfile [Pathname] Path to Gemfile
# @param lockfile [Pathname,nil] Path to Gemfile.lock
# @param unlock [Hash, Boolean, nil] Gems that have been requested
# to be updated or true if all gems should be updated
# @return [Bundler::Definition]
def self.build(gemfile, lockfile, unlock)
unlock ||= {}
gemfile = Pathname.new(gemfile).expand_path
raise GemfileNotFound, "#{gemfile} not found" unless gemfile.file?
Dsl.evaluate(gemfile, lockfile, unlock)
end
#
# How does the new system work?
#
# * Load information from Gemfile and Lockfile
# * Invalidate stale locked specs
# * All specs from stale source are stale
# * All specs that are reachable only through a stale
# dependency are stale.
# * If all fresh dependencies are satisfied by the locked
# specs, then we can try to resolve locally.
#
# @param lockfile [Pathname] Path to Gemfile.lock
# @param dependencies [Array(Bundler::Dependency)] array of dependencies from Gemfile
# @param sources [Bundler::SourceList]
# @param unlock [Hash, Boolean, nil] Gems that have been requested
# to be updated or true if all gems should be updated
# @param ruby_version [Bundler::RubyVersion, nil] Requested Ruby Version
# @param optional_groups [Array(String)] A list of optional groups
def initialize(lockfile, dependencies, sources, unlock, ruby_version = nil, optional_groups = [])
@unlocking = unlock == true || !unlock.empty?
@dependencies = dependencies
@sources = sources
@unlock = unlock
@optional_groups = optional_groups
@remote = false
@specs = nil
@ruby_version = ruby_version
@lockfile_contents = String.new
@locked_bundler_version = nil
@locked_ruby_version = nil
if lockfile && File.exist?(lockfile)
@lockfile_contents = Bundler.read_file(lockfile)
locked = LockfileParser.new(@lockfile_contents)
@platforms = locked.platforms
@locked_bundler_version = locked.bundler_version
@locked_ruby_version = locked.ruby_version
if unlock != true
@locked_deps = locked.dependencies
@locked_specs = SpecSet.new(locked.specs)
@locked_sources = locked.sources
else
@unlock = {}
@locked_deps = []
@locked_specs = SpecSet.new([])
@locked_sources = []
end
else
@unlock = {}
@platforms = []
@locked_deps = []
@locked_specs = SpecSet.new([])
@locked_sources = []
end
@unlock[:gems] ||= []
@unlock[:sources] ||= []
@unlock[:ruby] ||= if @ruby_version && @locked_ruby_version
unless locked_ruby_version_object = RubyVersion.from_string(@locked_ruby_version)
raise LockfileError, "Failed to create a `RubyVersion` object from " \
"`#{@locked_ruby_version}` found in #{lockfile} -- try running `bundle update --ruby`."
end
@ruby_version.diff(locked_ruby_version_object)
end
@unlocking ||= @unlock[:ruby] ||= (!@locked_ruby_version ^ !@ruby_version)
@gem_version_promoter = GemVersionPromoter.new(@locked_specs, @unlock[:gems])
current_platform = Bundler.rubygems.platforms.map {|p| generic(p) }.compact.last
add_platform(current_platform)
@path_changes = converge_paths
eager_unlock = expand_dependencies(@unlock[:gems])
@unlock[:gems] = @locked_specs.for(eager_unlock).map(&:name)
@source_changes = converge_sources
@dependency_changes = converge_dependencies
@local_changes = converge_locals
fixup_dependency_types!
end
def fixup_dependency_types!
# XXX This is a temporary workaround for a bug when using rubygems 1.8.15
# where Gem::Dependency#== matches Gem::Dependency#type. As the lockfile
# doesn't carry a notion of the dependency type, if you use
# add_development_dependency in a gemspec that's loaded with the gemspec
# directive, the lockfile dependencies and resolved dependencies end up
# with a mismatch on #type.
# Test coverage to catch a regression on this is in gemspec_spec.rb
@dependencies.each do |d|
if ld = @locked_deps.find {|l| l.name == d.name }
ld.instance_variable_set(:@type, d.type)
end
end
end
def resolve_with_cache!
raise "Specs already loaded" if @specs
sources.cached!
specs
end
def resolve_remotely!
raise "Specs already loaded" if @specs
@remote = true
sources.remote!
specs
end
# For given dependency list returns a SpecSet with Gemspec of all the required
# dependencies.
# 1. The method first resolves the dependencies specified in Gemfile
# 2. After that it tries and fetches gemspec of resolved dependencies
#
# @return [Bundler::SpecSet]
def specs
@specs ||= begin
begin
specs = resolve.materialize(Bundler.settings[:cache_all_platforms] ? dependencies : requested_dependencies)
rescue GemNotFound => e # Handle yanked gem
gem_name, gem_version = extract_gem_info(e)
locked_gem = @locked_specs[gem_name].last
raise if locked_gem.nil? || locked_gem.version.to_s != gem_version
raise GemNotFound, "Your bundle is locked to #{locked_gem}, but that version could not " \
"be found in any of the sources listed in your Gemfile. If you haven't changed sources, " \
"that means the author of #{locked_gem} has removed it. You'll need to update your bundle " \
"to a different version of #{locked_gem} that hasn't been removed in order to install."
end
unless specs["bundler"].any?
local = Bundler.settings[:frozen] ? rubygems_index : index
bundler = local.search(Gem::Dependency.new("bundler", VERSION)).last
specs["bundler"] = bundler if bundler
end
specs
end
end
def new_specs
specs - @locked_specs
end
def removed_specs
@locked_specs - specs
end
def new_platform?
@new_platform
end
def missing_specs
missing = []
resolve.materialize(requested_dependencies, missing)
missing
end
def missing_dependencies
missing = []
resolve.materialize(current_dependencies, missing)
missing
end
def requested_specs
@requested_specs ||= begin
groups = requested_groups
groups.map!(&:to_sym)
specs_for(groups)
end
end
def current_dependencies
dependencies.reject {|d| !d.should_include? }
end
def specs_for(groups)
deps = dependencies.select {|d| (d.groups & groups).any? }
deps.delete_if {|d| !d.should_include? }
specs.for(expand_dependencies(deps))
end
# Resolve all the dependencies specified in Gemfile. It ensures that
# dependencies that have been already resolved via locked file and are fresh
# are reused when resolving dependencies
#
# @return [SpecSet] resolved dependencies
def resolve
@resolve ||= begin
last_resolve = converge_locked_specs
if Bundler.settings[:frozen] || (!@unlocking && nothing_changed?)
Bundler.ui.debug("Found no changes, using resolution from the lockfile")
last_resolve
else
# Run a resolve against the locally available gems
Bundler.ui.debug("Found changes from the lockfile, re-resolving dependencies because #{change_reason}")
last_resolve.merge Resolver.resolve(expanded_dependencies, index, source_requirements, last_resolve, ruby_version, gem_version_promoter)
end
end
end
def index
@index ||= Index.build do |idx|
dependency_names = @dependencies.map(&:name)
sources.all_sources.each do |source|
source.dependency_names = dependency_names.dup
idx.add_source source.specs
dependency_names -= pinned_spec_names(source.specs)
dependency_names.concat(source.unmet_deps).uniq!
end
end
end
# used when frozen is enabled so we can find the bundler
# spec, even if (say) a git gem is not checked out.
def rubygems_index
@rubygems_index ||= Index.build do |idx|
sources.rubygems_sources.each do |rubygems|
idx.add_source rubygems.specs
end
end
end
def has_rubygems_remotes?
sources.rubygems_sources.any? {|s| s.remotes.any? }
end
def has_local_dependencies?
!sources.path_sources.empty? || !sources.git_sources.empty?
end
def spec_git_paths
sources.git_sources.map {|s| s.path.to_s }
end
def groups
dependencies.map(&:groups).flatten.uniq
end
def lock(file, preserve_unknown_sections = false)
contents = to_lock
# Convert to \r\n if the existing lock has them
# i.e., Windows with `git config core.autocrlf=true`
contents.gsub!(/\n/, "\r\n") if @lockfile_contents.match("\r\n")
if @locked_bundler_version
locked_major = @locked_bundler_version.segments.first
current_major = Gem::Version.create(Bundler::VERSION).segments.first
if updating_major = locked_major < current_major
Bundler.ui.warn "Warning: the lockfile is being updated to Bundler #{current_major}, " \
"after which you will be unable to return to Bundler #{@locked_bundler_version.segments.first}."
end
end
preserve_unknown_sections ||= !updating_major && (Bundler.settings[:frozen] || !@unlocking)
return if lockfiles_equal?(@lockfile_contents, contents, preserve_unknown_sections)
if Bundler.settings[:frozen]
Bundler.ui.error "Cannot write a changed lockfile while frozen."
return
end
SharedHelpers.filesystem_access(file) do |p|
File.open(p, "wb") {|f| f.puts(contents) }
end
end
def locked_bundler_version
if @locked_bundler_version && @locked_bundler_version < Gem::Version.new(Bundler::VERSION)
new_version = Bundler::VERSION
end
new_version || @locked_bundler_version || Bundler::VERSION
end
def locked_ruby_version
return unless ruby_version
if @unlock[:ruby] || !@locked_ruby_version
Bundler::RubyVersion.system
else
@locked_ruby_version
end
end
def to_lock
out = String.new
sources.lock_sources.each do |source|
# Add the source header
out << source.to_lock
# Find all specs for this source
resolve.
select {|s| source.can_lock?(s) }.
# This needs to be sorted by full name so that
# gems with the same name, but different platform
# are ordered consistently
sort_by(&:full_name).
each do |spec|
next if spec.name == "bundler"
out << spec.to_lock
end
out << "\n"
end
out << "PLATFORMS\n"
platforms.map(&:to_s).sort.each do |p|
out << " #{p}\n"
end
out << "\n"
out << "DEPENDENCIES\n"
handled = []
dependencies.sort_by(&:to_s).each do |dep|
next if handled.include?(dep.name)
out << dep.to_lock
handled << dep.name
end
if locked_ruby_version
out << "\nRUBY VERSION\n"
out << " #{locked_ruby_version}\n"
end
# Record the version of Bundler that was used to create the lockfile
out << "\nBUNDLED WITH\n"
out << " #{locked_bundler_version}\n"
out
end
def ensure_equivalent_gemfile_and_lockfile(explicit_flag = false)
msg = String.new
msg << "You are trying to install in deployment mode after changing\n" \
"your Gemfile. Run `bundle install` elsewhere and add the\n" \
"updated #{Bundler.default_lockfile.relative_path_from(SharedHelpers.pwd)} to version control."
unless explicit_flag
msg << "\n\nIf this is a development machine, remove the #{Bundler.default_gemfile} " \
"freeze \nby running `bundle install --no-deployment`."
end
added = []
deleted = []
changed = []
gemfile_sources = sources.lock_sources
new_sources = gemfile_sources - @locked_sources
deleted_sources = @locked_sources - gemfile_sources
new_deps = @dependencies - @locked_deps
deleted_deps = @locked_deps - @dependencies
# Check if it is possible that the source is only changed thing
if (new_deps.empty? && deleted_deps.empty?) && (!new_sources.empty? && !deleted_sources.empty?)
new_sources.reject! {|source| source.is_a_path? && source.path.exist? }
deleted_sources.reject! {|source| source.is_a_path? && source.path.exist? }
end
if @locked_sources != gemfile_sources
if new_sources.any?
added.concat new_sources.map {|source| "* source: #{source}" }
end
if deleted_sources.any?
deleted.concat deleted_sources.map {|source| "* source: #{source}" }
end
end
added.concat new_deps.map {|d| "* #{pretty_dep(d)}" } if new_deps.any?
if deleted_deps.any?
deleted.concat deleted_deps.map {|d| "* #{pretty_dep(d)}" }
end
both_sources = Hash.new {|h, k| h[k] = [] }
@dependencies.each {|d| both_sources[d.name][0] = d }
@locked_deps.each {|d| both_sources[d.name][1] = d.source }
both_sources.each do |name, (dep, lock_source)|
next unless (dep.nil? && !lock_source.nil?) || (!dep.nil? && !lock_source.nil? && !lock_source.can_lock?(dep))
gemfile_source_name = (dep && dep.source) || "no specified source"
lockfile_source_name = lock_source || "no specified source"
changed << "* #{name} from `#{gemfile_source_name}` to `#{lockfile_source_name}`"
end
msg << "\n\nYou have added to the Gemfile:\n" << added.join("\n") if added.any?
msg << "\n\nYou have deleted from the Gemfile:\n" << deleted.join("\n") if deleted.any?
msg << "\n\nYou have changed in the Gemfile:\n" << changed.join("\n") if changed.any?
msg << "\n"
raise ProductionError, msg if added.any? || deleted.any? || changed.any?
end
def validate_ruby!
return unless ruby_version
if diff = ruby_version.diff(Bundler::RubyVersion.system)
problem, expected, actual = diff
msg = case problem
when :engine
"Your Ruby engine is #{actual}, but your Gemfile specified #{expected}"
when :version
"Your Ruby version is #{actual}, but your Gemfile specified #{expected}"
when :engine_version
"Your #{Bundler::RubyVersion.system.engine} version is #{actual}, but your Gemfile specified #{ruby_version.engine} #{expected}"
when :patchlevel
if !expected.is_a?(String)
"The Ruby patchlevel in your Gemfile must be a string"
else
"Your Ruby patchlevel is #{actual}, but your Gemfile specified #{expected}"
end
end
raise RubyVersionMismatch, msg
end
end
def add_platform(platform)
@new_platform ||= !@platforms.include?(platform)
@platforms |= [platform]
end
attr_reader :sources
private :sources
private
def nothing_changed?
!@source_changes && !@dependency_changes && !@new_platform && !@path_changes && !@local_changes
end
def change_reason
if @unlocking
unlock_reason = @unlock.reject {|_k, v| Array(v).empty? }.map do |k, v|
if v == true
k.to_s
else
v = Array(v)
"#{k}: (#{v.join(", ")})"
end
end.join(", ")
return "bundler is unlocking #{unlock_reason}"
end
[
[@source_changes, "the list of sources changed"],
[@dependency_changes, "the dependencies in your gemfile changed"],
[@new_platform, "you added a new platform to your gemfile"],
[@path_changes, "the gemspecs for path gems changed"],
[@local_changes, "the gemspecs for git local gems changed"],
].select(&:first).map(&:last).join(", ")
end
def pretty_dep(dep, source = false)
msg = String.new(dep.name)
msg << " (#{dep.requirement})" unless dep.requirement == Gem::Requirement.default
msg << " from the `#{dep.source}` source" if source && dep.source
msg
end
# Check if the specs of the given source changed
# according to the locked source.
def specs_changed?(source)
locked = @locked_sources.find(source)
!locked || dependencies_for_source_changed?(source) || specs_for_source_changed?(source)
end
def dependencies_for_source_changed?(source)
deps_for_source = @dependencies.select {|s| s.source == source }
locked_deps_for_source = @locked_deps.select {|s| s.source == source }
Set.new(deps_for_source) != Set.new(locked_deps_for_source)
end
def specs_for_source_changed?(source)
locked_index = Index.new
locked_index.use(@locked_specs.select {|s| source.can_lock?(s) })
source.specs != locked_index
end
# Get all locals and override their matching sources.
# Return true if any of the locals changed (for example,
# they point to a new revision) or depend on new specs.
def converge_locals
locals = []
Bundler.settings.local_overrides.map do |k, v|
spec = @dependencies.find {|s| s.name == k }
source = spec && spec.source
if source && source.respond_to?(:local_override!)
source.unlock! if @unlock[:gems].include?(spec.name)
locals << [source, source.local_override!(v)]
end
end
locals.any? do |source, changed|
changed || specs_changed?(source)
end
end
def converge_paths
sources.path_sources.any? do |source|
specs_changed?(source)
end
end
def converge_sources
changes = false
# Get the Rubygems sources from the Gemfile.lock
locked_gem_sources = @locked_sources.select {|s| s.is_a?(Source::Rubygems) }
# Get the Rubygems remotes from the Gemfile
actual_remotes = sources.rubygems_remotes
# If there is a Rubygems source in both
if !locked_gem_sources.empty? && !actual_remotes.empty?
locked_gem_sources.each do |locked_gem|
# Merge the remotes from the Gemfile into the Gemfile.lock
changes |= locked_gem.replace_remotes(actual_remotes)
end
end
# Replace the sources from the Gemfile with the sources from the Gemfile.lock,
# if they exist in the Gemfile.lock and are `==`. If you can't find an equivalent
# source in the Gemfile.lock, use the one from the Gemfile.
changes |= sources.replace_sources!(@locked_sources)
sources.all_sources.each do |source|
# If the source is unlockable and the current command allows an unlock of
# the source (for example, you are doing a `bundle update <foo>` of a git-pinned
# gem), unlock it. For git sources, this means to unlock the revision, which
# will cause the `ref` used to be the most recent for the branch (or master) if
# an explicit `ref` is not used.
if source.respond_to?(:unlock!) && @unlock[:sources].include?(source.name)
source.unlock!
changes = true
end
end
changes
end
def converge_dependencies
(@dependencies + @locked_deps).each do |dep|
locked_source = @locked_deps.select {|d| d.name == dep.name }.last
# This is to make sure that if bundler is installing in deployment mode and
# after locked_source and sources don't match, we still use locked_source.
if Bundler.settings[:frozen] && !locked_source.nil? &&
locked_source.respond_to?(:source) && locked_source.source.instance_of?(Source::Path) && locked_source.source.path.exist?
dep.source = locked_source.source
elsif dep.source
dep.source = sources.get(dep.source)
end
end
Set.new(@dependencies) != Set.new(@locked_deps)
end
# Remove elements from the locked specs that are expired. This will most
# commonly happen if the Gemfile has changed since the lockfile was last
# generated
def converge_locked_specs
deps = []
# Build a list of dependencies that are the same in the Gemfile
# and Gemfile.lock. If the Gemfile modified a dependency, but
# the gem in the Gemfile.lock still satisfies it, this is fine
# too.
locked_deps_hash = @locked_deps.inject({}) do |hsh, dep|
hsh[dep] = dep
hsh
end
@dependencies.each do |dep|
locked_dep = locked_deps_hash[dep]
if in_locked_deps?(dep, locked_dep) || satisfies_locked_spec?(dep)
deps << dep
elsif dep.source.is_a?(Source::Path) && dep.current_platform? && (!locked_dep || dep.source != locked_dep.source)
@locked_specs.each do |s|
@unlock[:gems] << s.name if s.source == dep.source
end
dep.source.unlock! if dep.source.respond_to?(:unlock!)
dep.source.specs.each {|s| @unlock[:gems] << s.name }
end
end
converged = []
@locked_specs.each do |s|
# Replace the locked dependency's source with the equivalent source from the Gemfile
dep = @dependencies.find {|d| s.satisfies?(d) }
s.source = (dep && dep.source) || sources.get(s.source)
# Don't add a spec to the list if its source is expired. For example,
# if you change a Git gem to Rubygems.
next if s.source.nil? || @unlock[:sources].include?(s.source.name)
# XXX This is a backwards-compatibility fix to preserve the ability to
# unlock a single gem by passing its name via `--source`. See issue #3759
next if s.source.nil? || @unlock[:sources].include?(s.name)
# If the spec is from a path source and it doesn't exist anymore
# then we unlock it.
# Path sources have special logic
if s.source.instance_of?(Source::Path)
other = s.source.specs[s].first
# If the spec is no longer in the path source, unlock it. This
# commonly happens if the version changed in the gemspec
next unless other
deps2 = other.dependencies.select {|d| d.type != :development }
# If the dependencies of the path source have changed, unlock it
next unless s.dependencies.sort == deps2.sort
end
converged << s
end
resolve = SpecSet.new(converged)
resolve = resolve.for(expand_dependencies(deps, true), @unlock[:gems])
diff = @locked_specs.to_a - resolve.to_a
# Now, we unlock any sources that do not have anymore gems pinned to it
sources.all_sources.each do |source|
next unless source.respond_to?(:unlock!)
unless resolve.any? {|s| s.source == source }
source.unlock! if !diff.empty? && diff.any? {|s| s.source == source }
end
end
resolve
end
def in_locked_deps?(dep, locked_dep)
# Because the lockfile can't link a dep to a specific remote, we need to
# treat sources as equivalent anytime the locked dep has all the remotes
# that the Gemfile dep does.
locked_dep && locked_dep.source && dep.source && locked_dep.source.include?(dep.source)
end
def satisfies_locked_spec?(dep)
@locked_specs.any? {|s| s.satisfies?(dep) && (!dep.source || s.source.include?(dep.source)) }
end
def expanded_dependencies
@expanded_dependencies ||= expand_dependencies(dependencies, @remote)
end
def expand_dependencies(dependencies, remote = false)
deps = []
dependencies.each do |dep|
dep = Dependency.new(dep, ">= 0") unless dep.respond_to?(:name)
next unless remote || dep.current_platform?
dep.gem_platforms(@platforms).each do |p|
deps << DepProxy.new(dep, p) if remote || p == generic_local_platform
end
end
deps
end
def requested_dependencies
groups = requested_groups
groups.map!(&:to_sym)
dependencies.reject {|d| !d.should_include? || (d.groups & groups).empty? }
end
def source_requirements
# Load all specs from remote sources
index
# Record the specs available in each gem's source, so that those
# specs will be available later when the resolver knows where to
# look for that gemspec (or its dependencies)
source_requirements = {}
dependencies.each do |dep|
next unless dep.source
source_requirements[dep.name] = dep.source.specs
end
source_requirements
end
def pinned_spec_names(specs)
names = []
specs.each do |s|
# TODO: when two sources without blocks is an error, we can change
# this check to !s.source.is_a?(Source::LocalRubygems). For now,
# we need to ask every Rubygems for every gem name.
if s.source.is_a?(Source::Git) || s.source.is_a?(Source::Path)
names << s.name
end
end
names.uniq!
names
end
def requested_groups
groups - Bundler.settings.without - @optional_groups + Bundler.settings.with
end
def lockfiles_equal?(current, proposed, preserve_unknown_sections)
if preserve_unknown_sections
sections_to_ignore = LockfileParser.sections_to_ignore(@locked_bundler_version)
sections_to_ignore += LockfileParser.unknown_sections_in_lockfile(current)
sections_to_ignore += LockfileParser::ENVIRONMENT_VERSION_SECTIONS
pattern = /#{Regexp.union(sections_to_ignore)}\n(\s{2,}.*\n)+/
whitespace_cleanup = /\n{2,}/
current = current.gsub(pattern, "\n").gsub(whitespace_cleanup, "\n\n").strip
proposed = proposed.gsub(pattern, "\n").gsub(whitespace_cleanup, "\n\n").strip
end
current == proposed
end
def extract_gem_info(error)
# This method will extract the error message like "Could not find foo-1.2.3 in any of the sources"
# to an array. The first element will be the gem name (e.g. foo), the second will be the version number.
error.message.scan(/Could not find (\w+)-(\d+(?:\.\d+)+)/).flatten
end
end
end
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