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EDIT :: bundler_version_finder.rb

# frozen_string_literal: true require "rubygems/util" module Gem::BundlerVersionFinder def self.bundler_version version, _ = bundler_version_with_reason return unless version Gem::Version.new(version) end def self.bundler_version_with_reason if v = ENV["BUNDLER_VERSION"] return [v, "`$BUNDLER_VERSION`"] end if v = bundle_update_bundler_version return if v == true return [v, "`bundle update --bundler`"] end v, lockfile = lockfile_version if v return [v, "your #{lockfile}"] end end def self.missing_version_message return unless vr = bundler_version_with_reason <<-EOS Could not find 'bundler' (#{vr.first}) required by #{vr.last}. To update to the latest version installed on your system, run `bundle update --bundler`. To install the missing version, run `gem install bundler:#{vr.first}` EOS end def self.compatible?(spec) return true unless spec.name == "bundler".freeze return true unless bundler_version = self.bundler_version spec.version.segments.first == bundler_version.segments.first end def self.filter!(specs) return unless bundler_version = self.bundler_version specs.reject! { |spec| spec.version.segments.first != bundler_version.segments.first } exact_match_index = specs.find_index { |spec| spec.version == bundler_version } return unless exact_match_index specs.unshift(specs.delete_at(exact_match_index)) end def self.bundle_update_bundler_version return unless File.basename($0) == "bundle".freeze return unless "update".start_with?(ARGV.first || " ") bundler_version = nil update_index = nil ARGV.each_with_index do |a, i| if update_index && update_index.succ == i && a =~ Gem::Version::ANCHORED_VERSION_PATTERN bundler_version = a end next unless a =~ /\A--bundler(?:[= ](#{Gem::Version::VERSION_PATTERN}))?\z/ bundler_version = $1 || true update_index = i end bundler_version end private_class_method :bundle_update_bundler_version def self.lockfile_version return unless lockfile = lockfile_contents lockfile, contents = lockfile lockfile ||= "lockfile" regexp = /\n\nBUNDLED WITH\n\s{2,}(#{Gem::Version::VERSION_PATTERN})\n/ return unless contents =~ regexp [$1, lockfile] end private_class_method :lockfile_version def self.lockfile_contents gemfile = ENV["BUNDLE_GEMFILE"] gemfile = nil if gemfile && gemfile.empty? Gem::Util.traverse_parents Dir.pwd do |directory| next unless gemfile = Gem::GEM_DEP_FILES.find { |f| File.file?(f.tap(&Gem::UNTAINT)) } gemfile = File.join directory, gemfile break end unless gemfile return unless gemfile lockfile = case gemfile when "gems.rb" then "gems.locked" else "#{gemfile}.lock" end.dup.tap(&Gem::UNTAINT) return unless File.file?(lockfile) [lockfile, File.read(lockfile)] end private_class_method :lockfile_contents end

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