78 lines
2.0 KiB
Ruby
78 lines
2.0 KiB
Ruby
# frozen_string_literal: true
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module Gem::BundlerVersionFinder
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def self.bundler_version
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v = ENV["BUNDLER_VERSION"]
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v ||= bundle_update_bundler_version
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return if v == true
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v ||= lockfile_version
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return unless v
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Gem::Version.new(v)
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end
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def self.prioritize!(specs)
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exact_match_index = specs.find_index {|spec| spec.version == bundler_version }
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return unless exact_match_index
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specs.unshift(specs.delete_at(exact_match_index))
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end
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def self.bundle_update_bundler_version
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return unless File.basename($0) == "bundle".freeze
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return unless "update".start_with?(ARGV.first || " ")
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bundler_version = nil
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update_index = nil
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ARGV.each_with_index do |a, i|
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if update_index && update_index.succ == i && a =~ Gem::Version::ANCHORED_VERSION_PATTERN
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bundler_version = a
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end
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next unless a =~ /\A--bundler(?:[= ](#{Gem::Version::VERSION_PATTERN}))?\z/
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bundler_version = $1 || true
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update_index = i
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end
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bundler_version
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end
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private_class_method :bundle_update_bundler_version
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def self.lockfile_version
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return unless contents = lockfile_contents
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regexp = /\n\nBUNDLED WITH\n\s{2,}(#{Gem::Version::VERSION_PATTERN})\n/
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return unless contents =~ regexp
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$1
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end
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private_class_method :lockfile_version
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def self.lockfile_contents
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gemfile = ENV["BUNDLE_GEMFILE"]
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gemfile = nil if gemfile && gemfile.empty?
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unless gemfile
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begin
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Gem::Util.traverse_parents(Dir.pwd) do |directory|
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next unless gemfile = Gem::GEM_DEP_FILES.find {|f| File.file?(f.tap(&Gem::UNTAINT)) }
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gemfile = File.join directory, gemfile
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break
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end
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rescue Errno::ENOENT
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return
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end
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end
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return unless gemfile
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lockfile = case gemfile
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when "gems.rb" then "gems.locked"
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else "#{gemfile}.lock"
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end.dup.tap(&Gem::UNTAINT)
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return unless File.file?(lockfile)
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File.read(lockfile)
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end
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private_class_method :lockfile_contents
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end
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