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requirement.rb

# frozen_string_literal: true
require "rubygems/version"
require "rubygems/deprecate"

##
# A Requirement is a set of one or more version restrictions. It supports a
# few (<tt>=, !=, >, <, >=, <=, ~></tt>) different restriction operators.
#
# See Gem::Version for a description on how versions and requirements work
# together in RubyGems.

class Gem::Requirement

OPS = { #:nodoc:
    "="  =>  lambda { |v, r| v == r },
    "!=" =>  lambda { |v, r| v != r },
    ">"  =>  lambda { |v, r| v >  r },
    "<"  =>  lambda { |v, r| v <  r },
    ">=" =>  lambda { |v, r| v >= r },
    "<=" =>  lambda { |v, r| v <= r },
    "~>" =>  lambda { |v, r| v >= r && v.release < r.bump }
  }.freeze

SOURCE_SET_REQUIREMENT = Struct.new(:for_lockfile).new "!" # :nodoc:

quoted = OPS.keys.map { |k| Regexp.quote k }.join "|"
  PATTERN_RAW = "\\s*(#{quoted})?\\s*(#{Gem::Version::VERSION_PATTERN})\\s*".freeze # :nodoc:

##
  # A regular expression that matches a requirement

PATTERN = /\A#{PATTERN_RAW}\z/.freeze

##
  # The default requirement matches any non-prerelease version

DefaultRequirement = [">=", Gem::Version.new(0)].freeze

##
  # The default requirement matches any version

DefaultPrereleaseRequirement = [">=", Gem::Version.new("0.a")].freeze

##
  # Raised when a bad requirement is encountered

class BadRequirementError < ArgumentError; end

##
  # Factory method to create a Gem::Requirement object.  Input may be
  # a Version, a String, or nil.  Intended to simplify client code.
  #
  # If the input is "weird", the default version requirement is
  # returned.

def self.create(*inputs)
    return new inputs if inputs.length > 1

input = inputs.shift

case input
    when Gem::Requirement then
      input
    when Gem::Version, Array then
      new input
    when '!' then
      source_set
    else
      if input.respond_to? :to_str
        new [input.to_str]
      else
        default
      end
    end
  end

def self.default
    new '>= 0'
  end

def self.default_prerelease
    new '>= 0.a'
  end

###
  # A source set requirement, used for Gemfiles and lockfiles

def self.source_set # :nodoc:
    SOURCE_SET_REQUIREMENT
  end

##
  # Parse +obj+, returning an <tt>[op, version]</tt> pair. +obj+ can
  # be a String or a Gem::Version.
  #
  # If +obj+ is a String, it can be either a full requirement
  # specification, like <tt>">= 1.2"</tt>, or a simple version number,
  # like <tt>"1.2"</tt>.
  #
  #     parse("> 1.0")                 # => [">", Gem::Version.new("1.0")]
  #     parse("1.0")                   # => ["=", Gem::Version.new("1.0")]
  #     parse(Gem::Version.new("1.0")) # => ["=,  Gem::Version.new("1.0")]

def self.parse(obj)
    return ["=", obj] if Gem::Version === obj

unless PATTERN =~ obj.to_s
      raise BadRequirementError, "Illformed requirement [#{obj.inspect}]"
    end

if $1 == ">=" && $2 == "0"
      DefaultRequirement
    elsif $1 == ">=" && $2 == "0.a"
      DefaultPrereleaseRequirement
    else
      [$1 || "=", Gem::Version.new($2)]
    end
  end

##
  # An array of requirement pairs. The first element of the pair is
  # the op, and the second is the Gem::Version.

attr_reader :requirements #:nodoc:

##
  # Constructs a requirement from +requirements+. Requirements can be
  # Strings, Gem::Versions, or Arrays of those. +nil+ and duplicate
  # requirements are ignored. An empty set of +requirements+ is the
  # same as <tt>">= 0"</tt>.

def initialize(*requirements)
    requirements = requirements.flatten
    requirements.compact!
    requirements.uniq!

if requirements.empty?
      @requirements = [DefaultRequirement]
    else
      @requirements = requirements.map! { |r| self.class.parse r }
    end
  end

##
  # Concatenates the +new+ requirements onto this requirement.

def concat(new)
    new = new.flatten
    new.compact!
    new.uniq!
    new = new.map { |r| self.class.parse r }

@requirements.concat new
  end

##
  # Formats this requirement for use in a Gem::RequestSet::Lockfile.

def for_lockfile # :nodoc:
    return if [DefaultRequirement] == @requirements

list = requirements.sort_by do |_, version|
      version
    end.map do |op, version|
      "#{op} #{version}"
    end.uniq

" (#{list.join ', '})"
  end

##
  # true if this gem has no requirements.

def none?
    if @requirements.size == 1
      @requirements[0] == DefaultRequirement
    else
      false
    end
  end

##
  # true if the requirement is for only an exact version

def exact?
    return false unless @requirements.size == 1
    @requirements[0][0] == "="
  end

def as_list # :nodoc:
    requirements.map { |op, version| "#{op} #{version}" }
  end

def hash # :nodoc:
    requirements.sort.hash
  end

def marshal_dump # :nodoc:
    fix_syck_default_key_in_requirements

[@requirements]
  end

def marshal_load(array) # :nodoc:
    @requirements = array[0]

fix_syck_default_key_in_requirements
  end

def yaml_initialize(tag, vals) # :nodoc:
    vals.each do |ivar, val|
      instance_variable_set "@#{ivar}", val
    end

Gem.load_yaml
    fix_syck_default_key_in_requirements
  end

def init_with(coder) # :nodoc:
    yaml_initialize coder.tag, coder.map
  end

def to_yaml_properties # :nodoc:
    ["@requirements"]
  end

def encode_with(coder) # :nodoc:
    coder.add 'requirements', @requirements
  end

##
  # A requirement is a prerelease if any of the versions inside of it
  # are prereleases

def prerelease?
    requirements.any? { |r| r.last.prerelease? }
  end

def pretty_print(q) # :nodoc:
    q.group 1, 'Gem::Requirement.new(', ')' do
      q.pp as_list
    end
  end

##
  # True if +version+ satisfies this Requirement.

def satisfied_by?(version)
    raise ArgumentError, "Need a Gem::Version: #{version.inspect}" unless
      Gem::Version === version
    # #28965: syck has a bug with unquoted '=' YAML.loading as YAML::DefaultKey
    requirements.all? { |op, rv| (OPS[op] || OPS["="]).call version, rv }
  end

alias :=== :satisfied_by?
  alias :=~ :satisfied_by?

##
  # True if the requirement will not always match the latest version.

def specific?
    return true if @requirements.length > 1 # GIGO, > 1, > 2 is silly

not %w[> >=].include? @requirements.first.first # grab the operator
  end

def to_s # :nodoc:
    as_list.join ", "
  end

def ==(other) # :nodoc:
    return unless Gem::Requirement === other

# An == check is always necessary
    return false unless requirements == other.requirements

# An == check is sufficient unless any requirements use ~>
    return true unless _tilde_requirements.any?

# If any requirements use ~> we use the stricter `#eql?` that also checks
    # that version precision is the same
    _tilde_requirements.eql?(other._tilde_requirements)
  end

protected

def _tilde_requirements
    requirements.select { |r| r.first == "~>" }
  end

private

def fix_syck_default_key_in_requirements # :nodoc:
    Gem.load_yaml

# Fixup the Syck DefaultKey bug
    @requirements.each do |r|
      if r[0].kind_of? Gem::SyckDefaultKey
        r[0] = "="
      end
    end
  end

end

class Gem::Version

# This is needed for compatibility with older yaml
  # gemspecs.

Requirement = Gem::Requirement # :nodoc:

end

Name	Type	Size	Owner/Group	Permission	Last Modified	Actions
.	dir	-	root/linksafe	drwxr-xr-x	2024-03-03 10:47:27
..	dir	-	root/linksafe	drwxr-xr-x	2024-03-03 10:47:27
commands	dir	-	root/linksafe	drwxr-xr-x	2024-03-03 10:47:27
core_ext	dir	-	root/linksafe	drwxr-xr-x	2024-03-03 10:47:27
defaults	dir	-	root/linksafe	drwxr-xr-x	2024-03-03 10:47:27
ext	dir	-	root/linksafe	drwxr-xr-x	2024-03-03 10:47:27
package	dir	-	root/linksafe	drwxr-xr-x	2024-03-03 10:47:27
request	dir	-	root/linksafe	drwxr-xr-x	2024-03-03 10:47:27
request_set	dir	-	root/linksafe	drwxr-xr-x	2024-03-03 10:47:27
resolver	dir	-	root/linksafe	drwxr-xr-x	2024-03-03 10:47:27
security	dir	-	root/linksafe	drwxr-xr-x	2024-03-03 10:47:27
source	dir	-	root/linksafe	drwxr-xr-x	2024-03-03 10:47:27
ssl_certs	dir	-	root/linksafe	drwxr-xr-x	2023-06-06 02:55:54
util	dir	-	root/linksafe	drwxr-xr-x	2024-03-03 10:47:27
available_set.rb	text/x-ruby	3.02 KB	root/linksafe	-rw-r--r--	2023-03-30 12:34:08
basic_specification.rb	text/x-ruby	7.62 KB	root/linksafe	-rw-r--r--	2023-03-30 12:34:08
bundler_version_finder.rb	text/x-ruby	2.97 KB	root/linksafe	-rw-r--r--	2023-03-30 12:34:08
command.rb	text/x-ruby	15.79 KB	root/linksafe	-rw-r--r--	2023-03-30 12:34:08
command_manager.rb	text/x-ruby	4.99 KB	root/linksafe	-rw-r--r--	2023-03-30 12:34:08
compatibility.rb	text/x-ruby	1022 B	root/linksafe	-rw-r--r--	2023-03-30 12:34:08
config_file.rb	text/x-ruby	12.69 KB	root/linksafe	-rw-r--r--	2023-03-30 12:34:08
defaults.rb	text/x-ruby	4.76 KB	root/linksafe	-rw-r--r--	2023-06-06 02:51:26
dependency.rb	text/x-ruby	8.64 KB	root/linksafe	-rw-r--r--	2023-03-30 12:34:08
dependency_installer.rb	text/x-ruby	12 KB	root/linksafe	-rw-r--r--	2023-03-30 12:34:08
dependency_list.rb	text/x-ruby	5.54 KB	root/linksafe	-rw-r--r--	2023-03-30 12:34:08
deprecate.rb	text/x-ruby	1.75 KB	root/linksafe	-rw-r--r--	2023-03-30 12:34:08
doctor.rb	text/x-ruby	3.06 KB	root/linksafe	-rw-r--r--	2023-03-30 12:34:08
errors.rb	text/x-ruby	4.64 KB	root/linksafe	-rw-r--r--	2023-03-30 12:34:08
exceptions.rb	text/x-ruby	6.49 KB	root/linksafe	-rw-r--r--	2023-03-30 12:34:08
ext.rb	text/x-ruby	460 B	root/linksafe	-rw-r--r--	2023-03-30 12:34:08
gem_runner.rb	text/x-ruby	2.18 KB	root/linksafe	-rw-r--r--	2023-03-30 12:34:08
gemcutter_utilities.rb	text/x-ruby	5.16 KB	root/linksafe	-rw-r--r--	2023-03-30 12:34:08
indexer.rb	text/x-ruby	11.29 KB	root/linksafe	-rw-r--r--	2023-03-30 12:34:08
install_default_message.rb	text/x-ruby	336 B	root/linksafe	-rw-r--r--	2023-03-30 12:34:08
install_message.rb	text/x-ruby	310 B	root/linksafe	-rw-r--r--	2023-03-30 12:34:08
install_update_options.rb	text/x-ruby	6.26 KB	root/linksafe	-rw-r--r--	2023-03-30 12:34:08
installer.rb	text/x-ruby	26.62 KB	root/linksafe	-rw-r--r--	2023-03-30 12:34:08
installer_test_case.rb	text/x-ruby	4.8 KB	root/linksafe	-rw-r--r--	2023-03-30 12:34:08
local_remote_options.rb	text/x-ruby	3.53 KB	root/linksafe	-rw-r--r--	2023-03-30 12:34:08
mock_gem_ui.rb	text/x-ruby	1.38 KB	root/linksafe	-rw-r--r--	2023-03-30 12:34:08
name_tuple.rb	text/x-ruby	2.42 KB	root/linksafe	-rw-r--r--	2023-03-30 12:34:08
package.rb	text/x-ruby	17.99 KB	root/linksafe	-rw-r--r--	2023-03-30 12:34:08
package_task.rb	text/x-ruby	3.8 KB	root/linksafe	-rw-r--r--	2023-03-30 12:34:08
path_support.rb	text/x-ruby	1.88 KB	root/linksafe	-rw-r--r--	2023-03-30 12:34:08
platform.rb	text/x-ruby	6.25 KB	root/linksafe	-rw-r--r--	2023-03-30 12:34:08
psych_additions.rb	text/x-ruby	300 B	root/linksafe	-rw-r--r--	2023-03-30 12:34:08
psych_tree.rb	text/x-ruby	796 B	root/linksafe	-rw-r--r--	2023-03-30 12:34:08
rdoc.rb	text/x-ruby	524 B	root/linksafe	-rw-r--r--	2023-03-30 12:34:08
remote_fetcher.rb	text/x-ruby	9.48 KB	root/linksafe	-rw-r--r--	2023-03-30 12:34:08
request.rb	text/x-ruby	8.7 KB	root/linksafe	-rw-r--r--	2023-03-30 12:34:08
request_set.rb	text/x-ruby	11.94 KB	root/linksafe	-rw-r--r--	2023-03-30 12:34:08
requirement.rb	text/x-ruby	7.15 KB	root/linksafe	-rw-r--r--	2023-03-30 12:34:08
resolver.rb	text/x-ruby	9.46 KB	root/linksafe	-rw-r--r--	2023-03-30 12:34:08
s3_uri_signer.rb	text/x-ruby	5.93 KB	root/linksafe	-rw-r--r--	2023-03-30 12:34:08
safe_yaml.rb	text/x-ruby	1.55 KB	root/linksafe	-rw-r--r--	2023-03-30 12:34:08
security.rb	text/x-ruby	21.24 KB	root/linksafe	-rw-r--r--	2023-03-30 12:34:08
security_option.rb	text/x-ruby	1.03 KB	root/linksafe	-rw-r--r--	2023-03-30 12:34:08
server.rb	text/html	22.72 KB	root/linksafe	-rw-r--r--	2023-03-30 12:34:08
source.rb	text/x-ruby	5.38 KB	root/linksafe	-rw-r--r--	2023-03-30 12:34:08
source_list.rb	text/x-ruby	2.55 KB	root/linksafe	-rw-r--r--	2023-03-30 12:34:08
source_local.rb	text/x-ruby	274 B	root/linksafe	-rw-r--r--	2023-03-30 12:34:08
source_specific_file.rb	text/x-ruby	272 B	root/linksafe	-rw-r--r--	2023-03-30 12:34:08
spec_fetcher.rb	text/x-ruby	6.3 KB	root/linksafe	-rw-r--r--	2023-03-30 12:34:08
specification.rb	text/x-ruby	70.78 KB	root/linksafe	-rw-r--r--	2023-03-30 12:34:08
specification_policy.rb	text/x-ruby	11.67 KB	root/linksafe	-rw-r--r--	2023-03-30 12:34:08
stub_specification.rb	text/x-ruby	4.74 KB	root/linksafe	-rw-r--r--	2023-03-30 12:34:08
syck_hack.rb	text/x-ruby	2.12 KB	root/linksafe	-rw-r--r--	2023-03-30 12:34:08
test_case.rb	text/x-ruby	39.92 KB	root/linksafe	-rw-r--r--	2023-03-30 12:34:08
test_utilities.rb	text/x-ruby	8.84 KB	root/linksafe	-rw-r--r--	2023-03-30 12:34:08
text.rb	text/x-ruby	1.85 KB	root/linksafe	-rw-r--r--	2023-03-30 12:34:08
uninstaller.rb	text/x-ruby	8.83 KB	root/linksafe	-rw-r--r--	2023-03-30 12:34:08
uri_formatter.rb	text/x-ruby	778 B	root/linksafe	-rw-r--r--	2023-03-30 12:34:08
uri_parser.rb	text/x-ruby	785 B	root/linksafe	-rw-r--r--	2023-03-30 12:34:08
uri_parsing.rb	text/x-ruby	324 B	root/linksafe	-rw-r--r--	2023-03-30 12:34:08
user_interaction.rb	text/x-ruby	13.3 KB	root/linksafe	-rw-r--r--	2023-03-30 12:34:08
util.rb	text/x-ruby	2.41 KB	root/linksafe	-rw-r--r--	2023-03-30 12:34:08
validator.rb	text/x-ruby	3.65 KB	root/linksafe	-rw-r--r--	2023-03-30 12:34:08
version.rb	text/x-ruby	12.45 KB	root/linksafe	-rw-r--r--	2023-03-30 12:34:08
version_option.rb	text/x-ruby	2.02 KB	root/linksafe	-rw-r--r--	2023-03-30 12:34:08