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# -*- frozen-string-literal: true -*-
module Gem::BUNDLED_GEMS # :nodoc:
SINCE = {
"matrix" => "3.1.0",
"net-ftp" => "3.1.0",
"net-imap" => "3.1.0",
"net-pop" => "3.1.0",
"net-smtp" => "3.1.0",
"prime" => "3.1.0",
"racc" => "3.3.0",
"abbrev" => "3.4.0",
"base64" => "3.4.0",
"bigdecimal" => "3.4.0",
"csv" => "3.4.0",
"drb" => "3.4.0",
"getoptlong" => "3.4.0",
"mutex_m" => "3.4.0",
"nkf" => "3.4.0",
"observer" => "3.4.0",
"resolv-replace" => "3.4.0",
"rinda" => "3.4.0",
"syslog" => "3.4.0",
"ostruct" => "3.5.0",
"pstore" => "3.5.0",
"rdoc" => "3.5.0",
"win32ole" => "3.5.0",
"fiddle" => "3.5.0",
"logger" => "3.5.0",
"benchmark" => "3.5.0",
"irb" => "3.5.0",
"reline" => "3.5.0",
# "readline" => "3.5.0", # This is wrapper for reline. We don't warn for this.
}.freeze
SINCE_FAST_PATH = SINCE.transform_keys { |g| g.sub(/\A.*\-/, "") }.freeze
EXACT = {
"kconv" => "nkf",
}.freeze
PREFIXED = {
"bigdecimal" => true,
"csv" => true,
"drb" => true,
"rinda" => true,
"syslog" => true,
"fiddle" => true,
}.freeze
WARNED = {} # unfrozen
conf = ::RbConfig::CONFIG
if ENV["TEST_BUNDLED_GEMS_FAKE_RBCONFIG"]
LIBDIR = (File.expand_path(File.join(__dir__, "..", "lib")) + "/").freeze
rubyarchdir = $LOAD_PATH.find{|path| path.include?(".ext/common") }
ARCHDIR = (File.expand_path(rubyarchdir) + "/").freeze
else
LIBDIR = (conf["rubylibdir"] + "/").freeze
ARCHDIR = (conf["rubyarchdir"] + "/").freeze
end
dlext = [conf["DLEXT"], "so"].uniq
DLEXT = /\.#{Regexp.union(dlext)}\z/
LIBEXT = /\.#{Regexp.union("rb", *dlext)}\z/
def self.replace_require(specs)
return if [::Kernel.singleton_class, ::Kernel].any? {|klass| klass.respond_to?(:no_warning_require) }
spec_names = specs.to_a.each_with_object({}) {|spec, h| h[spec.name] = true }
[::Kernel.singleton_class, ::Kernel].each do |kernel_class|
kernel_class.send(:alias_method, :no_warning_require, :require)
kernel_class.send(:define_method, :require) do |name|
if message = ::Gem::BUNDLED_GEMS.warning?(name, specs: spec_names)
uplevel = ::Gem::BUNDLED_GEMS.uplevel
if uplevel > 0
Kernel.warn message, uplevel: uplevel
else
Kernel.warn message
end
end
kernel_class.send(:no_warning_require, name)
end
if kernel_class == ::Kernel
kernel_class.send(:private, :require)
else
kernel_class.send(:public, :require)
end
end
end
def self.uplevel
frame_count = 0
require_labels = ["replace_require", "require"]
uplevel = 0
require_found = false
Thread.each_caller_location do |cl|
frame_count += 1
if require_found
unless require_labels.include?(cl.base_label)
return uplevel
end
else
if require_labels.include?(cl.base_label)
require_found = true
end
end
uplevel += 1
# Don't show script name when bundle exec and call ruby script directly.
if cl.path.end_with?("bundle")
frame_count = 0
break
end
end
require_found ? 1 : frame_count - 1
end
def self.find_gem(path)
if !path
return
elsif path.start_with?(ARCHDIR)
n = path.delete_prefix(ARCHDIR).sub(DLEXT, "").chomp(".rb")
elsif path.start_with?(LIBDIR)
n = path.delete_prefix(LIBDIR).chomp(".rb")
else
return
end
(EXACT[n] || !!SINCE[n]) or PREFIXED[n = n[%r[\A[^/]+(?=/)]]] && n
end
def self.warning?(name, specs: nil)
# name can be a feature name or a file path with String or Pathname
feature = File.path(name)
# irb already has reline as a dependency on gemspec, so we don't want to warn about it.
# We should update this with a more general solution when we have another case.
# ex: Gem.loaded_specs[called_gem].dependencies.any? {|d| d.name == feature }
return false if feature.start_with?("reline") && caller_locations(2, 1)[0].to_s.include?("irb")
# The actual checks needed to properly identify the gem being required
# are costly (see [Bug #20641]), so we first do a much cheaper check
# to exclude the vast majority of candidates.
if feature.include?("/")
# bootsnap expands `require "csv"` to `require "#{LIBDIR}/csv.rb"`,
# and `require "syslog"` to `require "#{ARCHDIR}/syslog.so"`.
name = feature.delete_prefix(ARCHDIR).delete_prefix(LIBDIR).sub(LIBEXT, "")
segments = name.split("/")
name = segments.first
if !SINCE[name]
name = segments[0..1].join("-")
return unless SINCE[name]
end
else
name = feature.sub(LIBEXT, "")
return unless SINCE_FAST_PATH[name]
end
return if specs.include?(name)
_t, path = $:.resolve_feature_path(feature)
if gem = find_gem(path)
return if specs.include?(gem)
elsif SINCE[name] && !path
gem = true
else
return
end
return if WARNED[name]
WARNED[name] = true
if gem == true
gem = name
"#{feature} was loaded from the standard library, but"
elsif gem
"#{feature} is found in #{gem}, which"
else
return
end + build_message(gem)
end
def self.build_message(gem)
msg = " #{RUBY_VERSION < SINCE[gem] ? "will no longer be" : "is not"} part of the default gems starting from Ruby #{SINCE[gem]}."
if defined?(Bundler)
msg += "\nYou can add #{gem} to your Gemfile or gemspec to silence this warning."
# We detect the gem name from caller_locations. First we walk until we find `require`
# then take the first frame that's not from `require`.
#
# Additionally, we need to skip Bootsnap and Zeitwerk if present, these
# gems decorate Kernel#require, so they are not really the ones issuing
# the require call users should be warned about. Those are upwards.
frames_to_skip = 3
location = nil
require_found = false
Thread.each_caller_location do |cl|
if frames_to_skip >= 1
frames_to_skip -= 1
next
end
if require_found
if cl.base_label != "require"
location = cl.path
break
end
else
if cl.base_label == "require"
require_found = true
end
end
end
if location && File.file?(location) && !location.start_with?(Gem::BUNDLED_GEMS::LIBDIR)
caller_gem = nil
Gem.path.each do |path|
if location =~ %r{#{path}/gems/([\w\-\.]+)}
caller_gem = $1
break
end
end
if caller_gem
msg += "\nAlso please contact the author of #{caller_gem} to request adding #{gem} into its gemspec."
end
end
else
msg += " Install #{gem} from RubyGems."
end
msg
end
freeze
end
# for RubyGems without Bundler environment.
# If loading library is not part of the default gems and the bundled gems, warn it.
class LoadError
def message # :nodoc:
return super unless path
name = path.tr("/", "-")
if !defined?(Bundler) && Gem::BUNDLED_GEMS::SINCE[name] && !Gem::BUNDLED_GEMS::WARNED[name]
warn name + Gem::BUNDLED_GEMS.build_message(name), uplevel: Gem::BUNDLED_GEMS.uplevel
end
super
end
end