Class: Bundler::Definition

Inherits:
Object
  • Object
show all
Includes:
GemHelpers
Defined in:
lib/bundler/definition.rb

Constant Summary

Constants included from GemHelpers

GemHelpers::GENERICS, GemHelpers::GENERIC_CACHE

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods included from GemHelpers

generic, generic_local_platform, local_platform, platform_specificity_match, same_deps, same_specificity, select_best_platform_match

Constructor Details

#initialize(lockfile, dependencies, sources, unlock, ruby_version = nil, optional_groups = [], gemfiles = []) ⇒ Definition

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.

Parameters:

  • lockfile (Pathname) —

    Path to Gemfile.lock

  • dependencies (Array(Bundler::Dependency)) —

    array of dependencies from Gemfile

  • sources (Bundler::SourceList)
  • unlock (Hash, Boolean, nil) —

    Gems that have been requested to be updated or true if all gems should be updated

  • ruby_version (Bundler::RubyVersion, nil) (defaults to: nil) —

    Requested Ruby Version

  • optional_groups (Array(String)) (defaults to: []) —

    A list of optional groups



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# File 'lib/bundler/definition.rb', line 54

def initialize(lockfile, dependencies, sources, unlock, ruby_version = nil, optional_groups = [], gemfiles = [])
  if [true, false].include?(unlock)
    @unlocking_bundler = false
    @unlocking = unlock
  else
    unlock = unlock.dup
    @unlocking_bundler = unlock.delete(:bundler)
    unlock.delete_if {|_k, v| Array(v).empty? }
    @unlocking = !unlock.empty?
  end

  @dependencies    = dependencies
  @sources         = sources
  @unlock          = unlock
  @optional_groups = optional_groups
  @remote          = false
  @specs           = nil
  @ruby_version    = ruby_version
  @gemfiles        = gemfiles

  @lockfile               = lockfile
  @lockfile_contents      = String.new
  @locked_bundler_version = nil
  @locked_ruby_version    = nil
  @locked_specs_incomplete_for_platform = false
  @new_platform = nil

  if lockfile && File.exist?(lockfile)
    @lockfile_contents = Bundler.read_file(lockfile)
    @locked_gems = LockfileParser.new(@lockfile_contents)
    @locked_platforms = @locked_gems.platforms
    @platforms = @locked_platforms.dup
    @locked_bundler_version = @locked_gems.bundler_version
    @locked_ruby_version = @locked_gems.ruby_version

    if unlock != true
      @locked_deps    = @locked_gems.dependencies
      @locked_specs   = SpecSet.new(@locked_gems.specs)
      @locked_sources = @locked_gems.sources
    else
      @unlock         = {}
      @locked_deps    = {}
      @locked_specs   = SpecSet.new([])
      @locked_sources = []
    end
  else
    @unlock         = {}
    @platforms      = []
    @locked_gems    = nil
    @locked_deps    = {}
    @locked_specs   = SpecSet.new([])
    @locked_sources = []
    @locked_platforms = []
  end

  @locked_gem_sources = @locked_sources.select {|s| s.is_a?(Source::Rubygems) }
  @disable_multisource = !Bundler.frozen_bundle? || @locked_gem_sources.none? {|s| s.remotes.size > 1 }

  unless @disable_multisource
    msg = "Your lockfile contains a single rubygems source section with multiple remotes, which is insecure. " \
      "You should regenerate your lockfile in a non frozen environment."

    Bundler::SharedHelpers.major_deprecation 2, msg

    @sources.allow_multisource!
    @locked_gem_sources.each(&:allow_multisource!)
  end

  @unlock[:gems] ||= []
  @unlock[:sources] ||= []
  @unlock[:ruby] ||= if @ruby_version && locked_ruby_version_object
    @ruby_version.diff(locked_ruby_version_object)
  end
  @unlocking ||= @unlock[:ruby] ||= (!@locked_ruby_version ^ !@ruby_version)

  add_current_platform unless current_ruby_platform_locked? || Bundler.frozen_bundle?

  converge_path_sources_to_gemspec_sources
  @path_changes = converge_paths
  @source_changes = converge_sources

  unless @unlock[:lock_shared_dependencies]
    eager_unlock = expand_dependencies(@unlock[:gems], true)
    @unlock[:gems] = @locked_specs.for(eager_unlock, [], false, false, false).map(&:name)
  end

  @dependency_changes = converge_dependencies
  @local_changes = converge_locals

  @requires = compute_requires
end

Instance Attribute Details

#dependencies ⇒ Object (readonly)

Returns the value of attribute dependencies.



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# File 'lib/bundler/definition.rb', line 9

def dependencies
  @dependencies
end

#gemfiles ⇒ Object (readonly)

Returns the value of attribute gemfiles.



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# File 'lib/bundler/definition.rb', line 9

def gemfiles
  @gemfiles
end

#locked_deps ⇒ Object (readonly)

Returns the value of attribute locked_deps.



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# File 'lib/bundler/definition.rb', line 9

def locked_deps
  @locked_deps
end

#locked_gems ⇒ Object (readonly)

Returns the value of attribute locked_gems.



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# File 'lib/bundler/definition.rb', line 9

def locked_gems
  @locked_gems
end

#lockfile ⇒ Object (readonly)

Returns the value of attribute lockfile.



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# File 'lib/bundler/definition.rb', line 9

def lockfile
  @lockfile
end

#platforms ⇒ Object (readonly)

Returns the value of attribute platforms.



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# File 'lib/bundler/definition.rb', line 9

def platforms
  @platforms
end

#requires ⇒ Object (readonly)

Returns the value of attribute requires.



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# File 'lib/bundler/definition.rb', line 9

def requires
  @requires
end

#ruby_version ⇒ Object (readonly)

Returns the value of attribute ruby_version.



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# File 'lib/bundler/definition.rb', line 9

def ruby_version
  @ruby_version
end

Class Method Details

.build(gemfile, lockfile, unlock) ⇒ Bundler::Definition

Given a gemfile and lockfile creates a Bundler definition

Parameters:

  • gemfile (Pathname) —

    Path to Gemfile

  • lockfile (Pathname, nil) —

    Path to Gemfile.lock

  • unlock (Hash, Boolean, nil) —

    Gems that have been requested to be updated or true if all gems should be updated

Returns:

Raises:



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# File 'lib/bundler/definition.rb', line 27

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

Instance Method Details

#add_platform(platform) ⇒ Object 



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# File 'lib/bundler/definition.rb', line 527

def add_platform(platform)
  @new_platform ||= !@platforms.include?(platform)
  @platforms |= [platform]
end

#allow_multisource! ⇒ Object 



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# File 'lib/bundler/definition.rb', line 165

def allow_multisource!
  @disable_multisource = false
end

#current_dependencies ⇒ Object 



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# File 'lib/bundler/definition.rb', line 253

def current_dependencies
  dependencies.select do |d|
    d.should_include? && !d.gem_platforms(@platforms).empty?
  end
end

#dependencies_for(groups) ⇒ Object 



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# File 'lib/bundler/definition.rb', line 264

def dependencies_for(groups)
  current_dependencies.reject do |d|
    (d.groups & groups).empty?
  end
end

#disable_multisource? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/bundler/definition.rb', line 161

def disable_multisource?
  @disable_multisource
end

#ensure_equivalent_gemfile_and_lockfile(explicit_flag = false) ⇒ Object

Raises:



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# File 'lib/bundler/definition.rb', line 414

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
    suggested_command = if Bundler.settings.locations("frozen").keys.&([:global, :local]).any?
      "bundle config unset frozen"
    elsif Bundler.settings.locations("deployment").keys.&([:global, :local]).any?
      "bundle config unset deployment"
    end
    msg << "\n\nIf this is a development machine, remove the #{Bundler.default_gemfile} " \
           "freeze \nby running `#{suggested_command}`."
  end

  added =   []
  deleted = []
  changed = []

  new_platforms = @platforms - @locked_platforms
  deleted_platforms = @locked_platforms - @platforms
  added.concat new_platforms.map {|p| "* platform: #{p}" }
  deleted.concat deleted_platforms.map {|p| "* platform: #{p}" }

  gemfile_sources = sources.lock_sources

  new_sources = gemfile_sources - @locked_sources
  deleted_sources = @locked_sources - gemfile_sources

  new_deps = @dependencies - @locked_deps.values
  deleted_deps = @locked_deps.values - @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.path? && source.path.exist?) || equivalent_rubygems_remotes?(source) }
    deleted_sources.reject! {|source| (source.path? && source.path.exist?) || equivalent_rubygems_remotes?(source) }
  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  {|name, d| both_sources[name][1] = d.source }

  both_sources.each do |name, (dep, lock_source)|
    next if lock_source.nil? || (dep && lock_source.can_lock?(dep))
    gemfile_source_name = (dep && dep.source) || "no specified source"
    lockfile_source_name = lock_source
    changed << "* #{name} from `#{gemfile_source_name}` to `#{lockfile_source_name}`"
  end

  reason = change_reason
  msg << "\n\n#{reason.split(", ").map(&:capitalize).join("\n")}" unless reason.strip.empty?
  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? || !nothing_changed?
end

#find_indexed_specs(current_spec) ⇒ Object 



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# File 'lib/bundler/definition.rb', line 547

def find_indexed_specs(current_spec)
  index[current_spec.name].select {|spec| spec.match_platform(current_spec.platform) }.sort_by(&:version)
end

#find_resolved_spec(current_spec) ⇒ Object 



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# File 'lib/bundler/definition.rb', line 543

def find_resolved_spec(current_spec)
  specs.find_by_name_and_platform(current_spec.name, current_spec.platform)
end

#gem_version_promoter ⇒ Object 



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# File 'lib/bundler/definition.rb', line 146

def gem_version_promoter
  @gem_version_promoter ||= begin
    locked_specs =
      if unlocking? && @locked_specs.empty? && !@lockfile_contents.empty?
        # Definition uses an empty set of locked_specs to indicate all gems
        # are unlocked, but GemVersionPromoter needs the locked_specs
        # for conservative comparison.
        Bundler::SpecSet.new(@locked_gems.specs)
      else
        @locked_specs
      end
    GemVersionPromoter.new(locked_specs, @unlock[:gems])
  end
end

#groups ⇒ Object 



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# File 'lib/bundler/definition.rb', line 345

def groups
  dependencies.map(&:groups).flatten.uniq
end

#has_rubygems_remotes? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/bundler/definition.rb', line 337

def has_rubygems_remotes?
  sources.rubygems_sources.any? {|s| s.remotes.any? }
end

#index ⇒ Object 



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# File 'lib/bundler/definition.rb', line 293

def index
  @index ||= Index.build do |idx|
    dependency_names = @dependencies.map(&:name)

    sources.all_sources.each do |source|
      source.dependency_names = dependency_names - pinned_spec_names(source)
      idx.add_source source.specs
      dependency_names.concat(source.unmet_deps).uniq!
    end

    double_check_for_index(idx, dependency_names)
  end
end

#lock(file, preserve_unknown_sections = false) ⇒ Object 



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# File 'lib/bundler/definition.rb', line 349

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.frozen_bundle? || !(unlocking? || @unlocking_bundler))

  return if file && File.exist?(file) && lockfiles_equal?(@lockfile_contents, contents, preserve_unknown_sections)

  if Bundler.frozen_bundle?
    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

#locked_bundler_version ⇒ Object 



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# File 'lib/bundler/definition.rb', line 380

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

#locked_ruby_version ⇒ Object 



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# File 'lib/bundler/definition.rb', line 388

def locked_ruby_version
  return unless ruby_version
  if @unlock[:ruby] || !@locked_ruby_version
    Bundler::RubyVersion.system
  else
    @locked_ruby_version
  end
end

#locked_ruby_version_object ⇒ Object 



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# File 'lib/bundler/definition.rb', line 397

def locked_ruby_version_object
  return unless @locked_ruby_version
  @locked_ruby_version_object ||= begin
    unless version = RubyVersion.from_string(@locked_ruby_version)
      raise LockfileError, "The Ruby version #{@locked_ruby_version} from " \
        "#{@lockfile} could not be parsed. " \
        "Try running bundle update --ruby to resolve this."
    end
    version
  end
end

#missing_specs ⇒ Object 



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# File 'lib/bundler/definition.rb', line 218

def missing_specs
  missing = []
  resolve.materialize(requested_dependencies, missing)
  missing
end

#missing_specs? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/bundler/definition.rb', line 224

def missing_specs?
  missing = missing_specs
  return false if missing.empty?
  Bundler.ui.debug "The definition is missing #{missing.map(&:full_name)}"
  true
rescue BundlerError => e
  @index = nil
  @resolve = nil
  @specs = nil
  @gem_version_promoter = nil

  Bundler.ui.debug "The definition is missing dependencies, failed to resolve & materialize locally (#{e})"
  true
end

#most_specific_locked_platform ⇒ Object 



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# File 'lib/bundler/definition.rb', line 537

def most_specific_locked_platform
  @platforms.min_by do |bundle_platform|
    platform_specificity_match(bundle_platform, local_platform)
  end
end

#new_specs ⇒ Object 



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# File 'lib/bundler/definition.rb', line 210

def new_specs
  specs - @locked_specs
end

#nothing_changed? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/bundler/definition.rb', line 557

def nothing_changed?
  !@source_changes && !@dependency_changes && !@new_platform && !@path_changes && !@local_changes && !@locked_specs_incomplete_for_platform
end

#remove_platform(platform) ⇒ Object

Raises:



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# File 'lib/bundler/definition.rb', line 532

def remove_platform(platform)
  return if @platforms.delete(Gem::Platform.new(platform))
  raise InvalidOption, "Unable to remove the platform `#{platform}` since the only platforms are #{@platforms.join ", "}"
end

#removed_specs ⇒ Object 



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# File 'lib/bundler/definition.rb', line 214

def removed_specs
  @locked_specs - specs
end

#requested_dependencies ⇒ Object 



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# File 'lib/bundler/definition.rb', line 247

def requested_dependencies
  groups = requested_groups
  groups.map!(&:to_sym)
  dependencies_for(groups)
end

#requested_specs ⇒ Object 



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# File 'lib/bundler/definition.rb', line 239

def requested_specs
  @requested_specs ||= begin
    groups = requested_groups
    groups.map!(&:to_sym)
    specs_for(groups)
  end
end

#resolve ⇒ SpecSet

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

Returns:

  • (SpecSet) —

    resolved dependencies



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# File 'lib/bundler/definition.rb', line 275

def resolve
  @resolve ||= begin
    last_resolve = converge_locked_specs
    if Bundler.frozen_bundle?
      Bundler.ui.debug "Frozen, using resolution from the lockfile"
      last_resolve
    elsif !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}")
      expanded_dependencies = expand_dependencies(dependencies + metadata_dependencies, @remote)
      Resolver.resolve(expanded_dependencies, source_requirements, last_resolve, gem_version_promoter, additional_base_requirements_for_resolve, platforms)
    end
  end
end

#resolve_remotely! ⇒ Object 



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# File 'lib/bundler/definition.rb', line 175

def resolve_remotely!
  return if @specs
  @remote = true
  sources.remote!
  specs
end

#resolve_with_cache! ⇒ Object 



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# File 'lib/bundler/definition.rb', line 169

def resolve_with_cache!
  raise "Specs already loaded" if @specs
  sources.cached!
  specs
end

#spec_git_paths ⇒ Object 



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# File 'lib/bundler/definition.rb', line 341

def spec_git_paths
  sources.git_sources.map {|s| File.realpath(s.path) if File.exist?(s.path) }.compact
end

#specs ⇒ Bundler::SpecSet

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

Returns:



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# File 'lib/bundler/definition.rb', line 188

def specs
  @specs ||= begin
    begin
      specs = resolve.materialize(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 || !@remote
      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 version other than #{locked_gem} that hasn't been removed in order to install."
    end
    unless specs["bundler"].any?
      bundler = sources.metadata_source.specs.search(Gem::Dependency.new("bundler", VERSION)).last
      specs["bundler"] = bundler
    end

    specs
  end
end

#specs_for(groups) ⇒ Object 



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# File 'lib/bundler/definition.rb', line 259

def specs_for(groups)
  deps = dependencies_for(groups)
  specs.for(expand_dependencies(deps))
end

#to_lock ⇒ Object 



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# File 'lib/bundler/definition.rb', line 409

def to_lock
  require_relative "lockfile_generator"
  LockfileGenerator.generate(self)
end

#unlocking? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/bundler/definition.rb', line 561

def unlocking?
  @unlocking
end

#validate_platforms! ⇒ Object

Raises:



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# File 'lib/bundler/definition.rb', line 519

def validate_platforms!
  return if current_platform_locked?

  raise ProductionError, "Your bundle only supports platforms #{@platforms.map(&:to_s)} " \
    "but your local platform is #{Bundler.local_platform}. " \
    "Add the current platform to the lockfile with `bundle lock --add-platform #{Bundler.local_platform}` and try again."
end

#validate_ruby! ⇒ Object 



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# File 'lib/bundler/definition.rb', line 494

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

#validate_runtime! ⇒ Object 



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# File 'lib/bundler/definition.rb', line 489

def validate_runtime!
  validate_ruby!
  validate_platforms!
end