Class: Bundler::RubyVersion

Inherits:
Object
  • Object
show all
Defined in:
lib/bundler/ruby_version.rb

Constant Summary collapse

PATTERN = 
/
  ruby\s
  (\d+\.\d+\.\d+(?:\.\S+)?) # ruby version
  (?:p(-?\d+))? # optional patchlevel
  (?:\s\((\S+)\s(.+)\))? # optional engine info
/xo.freeze

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(versions, patchlevel, engine, engine_version) ⇒ RubyVersion

Returns a new instance of RubyVersion.



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# File 'lib/bundler/ruby_version.rb', line 12

def initialize(versions, patchlevel, engine, engine_version)
  # The parameters to this method must satisfy the
  # following constraints, which are verified in
  # the DSL:
  #
  # * If an engine is specified, an engine version
  #   must also be specified
  # * If an engine version is specified, an engine
  #   must also be specified
  # * If the engine is "ruby", the engine version
  #   must not be specified, or the engine version
  #   specified must match the version.

  @versions = Array(versions).map do |v|
    op, v = Gem::Requirement.parse(v)
    op == "=" ? v.to_s : "#{op} #{v}"
  end

  @gem_version        = Gem::Requirement.create(@versions.first).requirements.first.last
  @input_engine       = engine && engine.to_s
  @engine             = engine && engine.to_s || "ruby"
  @engine_versions    = (engine_version && Array(engine_version)) || @versions
  @engine_gem_version = Gem::Requirement.create(@engine_versions.first).requirements.first.last
  @patchlevel         = patchlevel || (@gem_version.prerelease? ? "-1" : nil)
end

Instance Attribute Details

#engine ⇒ Object (readonly)

Returns the value of attribute engine.



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# File 'lib/bundler/ruby_version.rb', line 5

def engine
  @engine
end

#engine_gem_version ⇒ Object (readonly)

Returns the value of attribute engine_gem_version.



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# File 'lib/bundler/ruby_version.rb', line 5

def engine_gem_version
  @engine_gem_version
end

#engine_versions ⇒ Object (readonly)

Returns the value of attribute engine_versions.



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# File 'lib/bundler/ruby_version.rb', line 5

def engine_versions
  @engine_versions
end

#gem_version ⇒ Object (readonly)

Returns the value of attribute gem_version.



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# File 'lib/bundler/ruby_version.rb', line 5

def gem_version
  @gem_version
end

#patchlevel ⇒ Object (readonly)

Returns the value of attribute patchlevel.



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# File 'lib/bundler/ruby_version.rb', line 5

def patchlevel
  @patchlevel
end

#versions ⇒ Object (readonly)

Returns the value of attribute versions.



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# File 'lib/bundler/ruby_version.rb', line 5

def versions
  @versions
end

Class Method Details

.from_string(string) ⇒ RubyVersion, Nil

Returns a RubyVersion from the given string.

Parameters:

  • the (String) —

    version string to match.

Returns:

  • (RubyVersion, Nil) —

    The version if the string is a valid RubyVersion description, and nil otherwise.



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# File 'lib/bundler/ruby_version.rb', line 58

def self.from_string(string)
  new($1, $2, $3, $4) if string =~ PATTERN
end

.system ⇒ Object 



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# File 'lib/bundler/ruby_version.rb', line 104

def self.system
  ruby_engine = RUBY_ENGINE.dup
  ruby_version = Gem.ruby_version.to_s
  ruby_engine_version = RUBY_ENGINE == "ruby" ? ruby_version : RUBY_ENGINE_VERSION.dup
  patchlevel = RUBY_PATCHLEVEL.to_s

  @system ||= RubyVersion.new(ruby_version, patchlevel, ruby_engine, ruby_engine_version)
end

Instance Method Details

#==(other) ⇒ Object 



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# File 'lib/bundler/ruby_version.rb', line 66

def ==(other)
  versions == other.versions &&
    engine == other.engine &&
    engine_versions == other.engine_versions &&
    patchlevel == other.patchlevel
end

#diff(other) ⇒ Object

Returns a tuple of these things:

[diff, this, other]
The priority of attributes are
1. engine
2. ruby_version
3. engine_version

Raises:

  • (ArgumentError) 


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# File 'lib/bundler/ruby_version.rb', line 87

def diff(other)
  raise ArgumentError, "Can only diff with a RubyVersion, not a #{other.class}" unless other.is_a?(RubyVersion)
  if engine != other.engine && @input_engine
    [:engine, engine, other.engine]
  elsif versions.empty? || !matches?(versions, other.gem_version)
    [:version, versions_string(versions), versions_string(other.versions)]
  elsif @input_engine && !matches?(engine_versions, other.engine_gem_version)
    [:engine_version, versions_string(engine_versions), versions_string(other.engine_versions)]
  elsif patchlevel && (!patchlevel.is_a?(String) || !other.patchlevel.is_a?(String) || !matches?(patchlevel, other.patchlevel))
    [:patchlevel, patchlevel, other.patchlevel]
  end
end

#host ⇒ Object 



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# File 'lib/bundler/ruby_version.rb', line 73

def host
  @host ||= [
    RbConfig::CONFIG["host_cpu"],
    RbConfig::CONFIG["host_vendor"],
    RbConfig::CONFIG["host_os"],
  ].join("-")
end

#single_version_string ⇒ Object 



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# File 'lib/bundler/ruby_version.rb', line 62

def single_version_string
  to_s(gem_version)
end

#to_s(versions = self.versions) ⇒ Object 



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# File 'lib/bundler/ruby_version.rb', line 38

def to_s(versions = self.versions)
  output = String.new("ruby #{versions_string(versions)}")
  output << "p#{patchlevel}" if patchlevel && patchlevel != "-1"
  output << " (#{engine} #{versions_string(engine_versions)})" unless engine == "ruby"

  output
end

#versions_string(versions) ⇒ Object 



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# File 'lib/bundler/ruby_version.rb', line 100

def versions_string(versions)
  Array(versions).join(", ")
end