/usr/lib/ruby/vendor_ruby/bundler/source/rubygems.rb is in ruby-bundler 1.13.6-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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require "uri"
require "rubygems/user_interaction"
require "rubygems/spec_fetcher"
module Bundler
class Source
class Rubygems < Source
autoload :Remote, "bundler/source/rubygems/remote"
# Use the API when installing less than X gems
API_REQUEST_LIMIT = 500
# Ask for X gems per API request
API_REQUEST_SIZE = 50
attr_reader :remotes, :caches
def initialize(options = {})
@options = options
@remotes = []
@dependency_names = []
@allow_remote = false
@allow_cached = false
@caches = [cache_path, *Bundler.rubygems.gem_cache]
Array(options["remotes"] || []).reverse_each {|r| add_remote(r) }
end
def remote!
@specs = nil
@allow_remote = true
end
def cached!
@allow_cached = true
end
def hash
@remotes.hash
end
def eql?(other)
other.is_a?(Rubygems) && other.credless_remotes == credless_remotes
end
alias_method :==, :eql?
def include?(o)
o.is_a?(Rubygems) && (o.credless_remotes - credless_remotes).empty?
end
def can_lock?(spec)
spec.source.is_a?(Rubygems)
end
def options
{ "remotes" => @remotes.map(&:to_s) }
end
def self.from_lock(options)
new(options)
end
def to_lock
out = String.new("GEM\n")
remotes.reverse_each do |remote|
out << " remote: #{suppress_configured_credentials remote}\n"
end
out << " specs:\n"
end
def to_s
remote_names = remotes.map(&:to_s).join(", ")
"rubygems repository #{remote_names}"
end
alias_method :name, :to_s
def specs
@specs ||= begin
# remote_specs usually generates a way larger Index than the other
# sources, and large_idx.use small_idx is way faster than
# small_idx.use large_idx.
idx = @allow_remote ? remote_specs.dup : Index.new
idx.use(cached_specs, :override_dupes) if @allow_cached || @allow_remote
idx.use(installed_specs, :override_dupes)
idx
end
end
def install(spec, opts = {})
force = opts[:force]
ensure_builtin_gems_cached = opts[:ensure_builtin_gems_cached]
if ensure_builtin_gems_cached && builtin_gem?(spec)
if !cached_path(spec)
cached_built_in_gem(spec) unless spec.remote
force = true
else
spec.loaded_from = loaded_from(spec)
end
end
if installed?(spec) && (!force || spec.name.eql?("bundler"))
Bundler.ui.info "Using #{version_message(spec)}"
return nil # no post-install message
end
# Download the gem to get the spec, because some specs that are returned
# by rubygems.org are broken and wrong.
if spec.remote
# Check for this spec from other sources
uris = [spec.remote.anonymized_uri]
uris += remotes_for_spec(spec).map(&:anonymized_uri)
uris.uniq!
Installer.ambiguous_gems << [spec.name, *uris] if uris.length > 1
s = Bundler.rubygems.spec_from_gem(fetch_gem(spec), Bundler.settings["trust-policy"])
spec.__swap__(s)
end
unless Bundler.settings[:no_install]
message = "Installing #{version_message(spec)}"
message += " with native extensions" if spec.extensions.any?
Bundler.ui.confirm message
path = cached_gem(spec)
if requires_sudo?
install_path = Bundler.tmp(spec.full_name)
bin_path = install_path.join("bin")
else
install_path = rubygems_dir
bin_path = Bundler.system_bindir
end
installed_spec = nil
Bundler.rubygems.preserve_paths do
installed_spec = Bundler::RubyGemsGemInstaller.at(
path,
:install_dir => install_path.to_s,
:bin_dir => bin_path.to_s,
:ignore_dependencies => true,
:wrappers => true,
:env_shebang => true
).install
end
spec.full_gem_path = installed_spec.full_gem_path
# SUDO HAX
if requires_sudo?
Bundler.rubygems.repository_subdirectories.each do |name|
src = File.join(install_path, name, "*")
dst = File.join(rubygems_dir, name)
if name == "extensions" && Dir.glob(src).any?
src = File.join(src, "*/*")
ext_src = Dir.glob(src).first
ext_src.gsub!(src[0..-6], "")
dst = File.dirname(File.join(dst, ext_src))
end
SharedHelpers.filesystem_access(dst) do |p|
Bundler.mkdir_p(p)
end
Bundler.sudo "cp -R #{src} #{dst}" if Dir[src].any?
end
spec.executables.each do |exe|
SharedHelpers.filesystem_access(Bundler.system_bindir) do |p|
Bundler.mkdir_p(p)
end
Bundler.sudo "cp -R #{install_path}/bin/#{exe} #{Bundler.system_bindir}/"
end
end
installed_spec.loaded_from = loaded_from(spec)
end
spec.loaded_from = loaded_from(spec)
spec.post_install_message
ensure
Bundler.rm_rf(install_path) if requires_sudo?
end
def cache(spec, custom_path = nil)
if builtin_gem?(spec)
cached_path = cached_built_in_gem(spec)
else
cached_path = cached_gem(spec)
end
raise GemNotFound, "Missing gem file '#{spec.full_name}.gem'." unless cached_path
return if File.dirname(cached_path) == Bundler.app_cache.to_s
Bundler.ui.info " * #{File.basename(cached_path)}"
FileUtils.cp(cached_path, Bundler.app_cache(custom_path))
rescue Errno::EACCES => e
Bundler.ui.debug(e)
raise InstallError, e.message
end
def cached_built_in_gem(spec)
cached_path = cached_path(spec)
if cached_path.nil?
remote_spec = remote_specs.search(spec).first
if remote_spec
cached_path = fetch_gem(remote_spec)
else
Bundler.ui.warn "#{spec.full_name} is built in to Ruby, and can't be cached because your Gemfile doesn't have any sources that contain it."
end
end
cached_path
end
def add_remote(source)
uri = normalize_uri(source)
@remotes.unshift(uri) unless @remotes.include?(uri)
end
def replace_remotes(other_remotes)
return false if other_remotes == @remotes
@remotes = []
other_remotes.reverse_each do |r|
add_remote r.to_s
end
end
def unmet_deps
if @allow_remote && api_fetchers.any?
remote_specs.unmet_dependency_names
else
[]
end
end
def fetchers
@fetchers ||= remotes.map do |uri|
remote = Source::Rubygems::Remote.new(uri)
Bundler::Fetcher.new(remote)
end
end
protected
def credless_remotes
remotes.map(&method(:suppress_configured_credentials))
end
def remotes_for_spec(spec)
specs.search_all(spec.name).inject([]) do |uris, s|
uris << s.remote if s.remote
uris
end
end
def loaded_from(spec)
"#{rubygems_dir}/specifications/#{spec.full_name}.gemspec"
end
def cached_gem(spec)
cached_gem = cached_path(spec)
unless cached_gem
raise Bundler::GemNotFound, "Could not find #{spec.file_name} for installation"
end
cached_gem
end
def cached_path(spec)
possibilities = @caches.map {|p| "#{p}/#{spec.file_name}" }
possibilities.find {|p| File.exist?(p) }
end
def normalize_uri(uri)
uri = uri.to_s
uri = "#{uri}/" unless uri =~ %r{/$}
uri = URI(uri)
raise ArgumentError, "The source must be an absolute URI. For example:\n" \
"source 'https://rubygems.org'" if !uri.absolute? || (uri.is_a?(URI::HTTP) && uri.host.nil?)
uri
end
def suppress_configured_credentials(remote)
remote_nouser = remote.dup.tap {|uri| uri.user = uri.password = nil }.to_s
if remote.userinfo && remote.userinfo == Bundler.settings[remote_nouser]
remote_nouser
else
remote
end
end
def installed_specs
@installed_specs ||= begin
idx = Index.new
have_bundler = false
Bundler.rubygems.all_specs.reverse_each do |spec|
next if spec.name == "bundler" && spec.version.to_s != VERSION
have_bundler = true if spec.name == "bundler"
spec.source = self
idx << spec
end
# Always have bundler locally
unless have_bundler
# We're running bundler directly from the source
# so, let's create a fake gemspec for it (it's a path)
# gemspec
bundler = Gem::Specification.new do |s|
s.name = "bundler"
s.version = VERSION
s.platform = Gem::Platform::RUBY
s.source = self
s.authors = ["bundler team"]
s.loaded_from = File.expand_path("..", __FILE__)
end
idx << bundler
end
idx
end
end
def cached_specs
@cached_specs ||= begin
idx = installed_specs.dup
Dir["#{cache_path}/*.gem"].each do |gemfile|
next if gemfile =~ /^bundler\-[\d\.]+?\.gem/
s ||= Bundler.rubygems.spec_from_gem(gemfile)
s.source = self
idx << s
end
end
idx
end
def api_fetchers
fetchers.select {|f| f.use_api && f.fetchers.first.api_fetcher? }
end
def remote_specs
@remote_specs ||= Index.build do |idx|
index_fetchers = fetchers - api_fetchers
# gather lists from non-api sites
index_fetchers.each do |f|
Bundler.ui.info "Fetching source index from #{f.uri}"
idx.use f.specs_with_retry(nil, self)
end
# because ensuring we have all the gems we need involves downloading
# the gemspecs of those gems, if the non-api sites contain more than
# about 100 gems, we treat all sites as non-api for speed.
allow_api = idx.size < API_REQUEST_LIMIT && dependency_names.size < API_REQUEST_LIMIT
Bundler.ui.debug "Need to query more than #{API_REQUEST_LIMIT} gems." \
" Downloading full index instead..." unless allow_api
if allow_api
api_fetchers.each do |f|
Bundler.ui.info "Fetching gem metadata from #{f.uri}", Bundler.ui.debug?
idx.use f.specs_with_retry(dependency_names, self)
Bundler.ui.info "" unless Bundler.ui.debug? # new line now that the dots are over
end
# Suppose the gem Foo depends on the gem Bar. Foo exists in Source A. Bar has some versions that exist in both
# sources A and B. At this point, the API request will have found all the versions of Bar in source A,
# but will not have found any versions of Bar from source B, which is a problem if the requested version
# of Foo specifically depends on a version of Bar that is only found in source B. This ensures that for
# each spec we found, we add all possible versions from all sources to the index.
loop do
idxcount = idx.size
api_fetchers.each do |f|
Bundler.ui.info "Fetching version metadata from #{f.uri}", Bundler.ui.debug?
idx.use f.specs_with_retry(idx.dependency_names, self), true
Bundler.ui.info "" unless Bundler.ui.debug? # new line now that the dots are over
end
break if idxcount == idx.size
end
if api_fetchers.any?
# it's possible that gems from one source depend on gems from some
# other source, so now we download gemspecs and iterate over those
# dependencies, looking for gems we don't have info on yet.
unmet = idx.unmet_dependency_names
# if there are any cross-site gems we missed, get them now
api_fetchers.each do |f|
Bundler.ui.info "Fetching dependency metadata from #{f.uri}", Bundler.ui.debug?
idx.use f.specs_with_retry(unmet, self)
Bundler.ui.info "" unless Bundler.ui.debug? # new line now that the dots are over
end if unmet.any?
else
allow_api = false
end
end
unless allow_api
api_fetchers.each do |f|
Bundler.ui.info "Fetching source index from #{f.uri}"
idx.use f.specs_with_retry(nil, self)
end
end
end
end
def fetch_gem(spec)
return false unless spec.remote
uri = spec.remote.uri
spec.fetch_platform
download_path = requires_sudo? ? Bundler.tmp(spec.full_name) : rubygems_dir
gem_path = "#{rubygems_dir}/cache/#{spec.full_name}.gem"
SharedHelpers.filesystem_access("#{download_path}/cache") do |p|
FileUtils.mkdir_p(p)
end
Bundler.rubygems.download_gem(spec, uri, download_path)
if requires_sudo?
SharedHelpers.filesystem_access("#{rubygems_dir}/cache") do |p|
Bundler.mkdir_p(p)
end
Bundler.sudo "mv #{download_path}/cache/#{spec.full_name}.gem #{gem_path}"
end
gem_path
ensure
Bundler.rm_rf(download_path) if requires_sudo?
end
def builtin_gem?(spec)
# Ruby 2.1, where all included gems have this summary
return true if spec.summary =~ /is bundled with Ruby/
# Ruby 2.0, where gemspecs are stored in specifications/default/
spec.loaded_from && spec.loaded_from.include?("specifications/default/")
end
def installed?(spec)
installed_specs[spec].any?
end
def requires_sudo?
Bundler.requires_sudo?
end
def rubygems_dir
Bundler.rubygems.gem_dir
end
def cache_path
Bundler.app_cache
end
end
end
end
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