Class: Gem::RequestSet::Lockfile

Inherits:
Object
  • Object
show all
Defined in:
lib/rubygems/request_set/lockfile.rb

Overview

Parses a gem.deps.rb.lock file and constructs a LockSet containing the dependencies found inside. If the lock file is missing no LockSet is constructed.

Defined Under Namespace

Classes: ParseError, Parser, Tokenizer

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(request_set, gem_deps_file, dependencies) ⇒ Lockfile

Returns a new instance of Lockfile.



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# File 'lib/rubygems/request_set/lockfile.rb', line 74

def initialize(request_set, gem_deps_file, dependencies)
  @set           = request_set
  @dependencies  = dependencies
  @gem_deps_file = File.expand_path(gem_deps_file)
  @gem_deps_dir  = File.dirname(@gem_deps_file)
  @platforms = []
end

Instance Attribute Details

#platforms ⇒ Object (readonly)

The platforms for this Lockfile



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# File 'lib/rubygems/request_set/lockfile.rb', line 72

def platforms
  @platforms
end

Class Method Details

.build(request_set, gem_deps_file, dependencies = nil) ⇒ Object

Creates a new Lockfile for the given request_set and gem_deps_file location.



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# File 'lib/rubygems/request_set/lockfile.rb', line 44

def self.build(request_set, gem_deps_file, dependencies = nil)
  request_set.resolve
  dependencies ||= requests_to_deps request_set.sorted_requests
  new request_set, gem_deps_file, dependencies
end

.requests_to_deps(requests) ⇒ Object

:nodoc:



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# File 'lib/rubygems/request_set/lockfile.rb', line 50

def self.requests_to_deps(requests) # :nodoc:
  deps = {}

  requests.each do |request|
    spec        = request.spec
    name        = request.name
    requirement = request.request.dependency.requirement

    deps[name] = if [Gem::Resolver::VendorSpecification,
                     Gem::Resolver::GitSpecification].include? spec.class
      Gem::Requirement.source_set
    else
      requirement
    end
  end

  deps
end

Instance Method Details

#add_DEPENDENCIES(out) ⇒ Object

:nodoc:



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# File 'lib/rubygems/request_set/lockfile.rb', line 82

def add_DEPENDENCIES(out) # :nodoc:
  out << "DEPENDENCIES"

  out.concat @dependencies.sort.map {|name, requirement|
    "  #{name}#{requirement.for_lockfile}"
  }

  out << nil
end

#add_GEM(out, spec_groups) ⇒ Object

:nodoc:



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# File 'lib/rubygems/request_set/lockfile.rb', line 92

def add_GEM(out, spec_groups) # :nodoc:
  return if spec_groups.empty?

  source_groups = spec_groups.values.flatten.group_by do |request|
    request.spec.source.uri
  end

  source_groups.sort_by {|group,| group.to_s }.map do |group, requests|
    out << "GEM"
    out << "  remote: #{group}"
    out << "  specs:"

    requests.sort_by(&:name).each do |request|
      next if request.spec.name == "bundler"
      platform = "-#{request.spec.platform}" unless
        request.spec.platform == Gem::Platform::RUBY

      out << "    #{request.name} (#{request.version}#{platform})"

      request.full_spec.dependencies.sort.each do |dependency|
        next if dependency.type == :development

        requirement = dependency.requirement
        out << "      #{dependency.name}#{requirement.for_lockfile}"
      end
    end
    out << nil
  end
end

#add_GIT(out, git_requests) ⇒ Object 



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# File 'lib/rubygems/request_set/lockfile.rb', line 122

def add_GIT(out, git_requests)
  return if git_requests.empty?

  by_repository_revision = git_requests.group_by do |request|
    source = request.spec.source
    [source.repository, source.rev_parse]
  end

  by_repository_revision.each do |(repository, revision), requests|
    out << "GIT"
    out << "  remote: #{repository}"
    out << "  revision: #{revision}"
    out << "  specs:"

    requests.sort_by(&:name).each do |request|
      out << "    #{request.name} (#{request.version})"

      dependencies = request.spec.dependencies.sort_by(&:name)
      dependencies.each do |dep|
        out << "      #{dep.name}#{dep.requirement.for_lockfile}"
      end
    end
    out << nil
  end
end

#add_PATH(out, path_requests) ⇒ Object

:nodoc:



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# File 'lib/rubygems/request_set/lockfile.rb', line 163

def add_PATH(out, path_requests) # :nodoc:
  return if path_requests.empty?

  out << "PATH"
  path_requests.each do |request|
    directory = File.expand_path(request.spec.source.uri)

    out << "  remote: #{relative_path_from directory, @gem_deps_dir}"
    out << "  specs:"
    out << "    #{request.name} (#{request.version})"
  end

  out << nil
end

#add_PLATFORMS(out) ⇒ Object

:nodoc:



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# File 'lib/rubygems/request_set/lockfile.rb', line 178

def add_PLATFORMS(out) # :nodoc:
  out << "PLATFORMS"

  platforms = requests.map {|request| request.spec.platform }.uniq

  platforms = platforms.sort_by(&:to_s)

  platforms.each do |platform|
    out << "  #{platform}"
  end

  out << nil
end

#relative_path_from(dest, base) ⇒ Object

:nodoc:



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# File 'lib/rubygems/request_set/lockfile.rb', line 148

def relative_path_from(dest, base) # :nodoc:
  dest = File.expand_path(dest)
  base = File.expand_path(base)

  if dest.index(base) == 0
    offset = dest[base.size + 1..-1]

    return "." unless offset

    offset
  else
    dest
  end
end

#spec_groups ⇒ Object 



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# File 'lib/rubygems/request_set/lockfile.rb', line 192

def spec_groups
  requests.group_by {|request| request.spec.class }
end

#to_s ⇒ Object

The contents of the lock file.



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# File 'lib/rubygems/request_set/lockfile.rb', line 199

def to_s
  out = []

  groups = spec_groups

  add_PATH out, groups.delete(Gem::Resolver::VendorSpecification) { [] }

  add_GIT out, groups.delete(Gem::Resolver::GitSpecification) { [] }

  add_GEM out, groups

  add_PLATFORMS out

  add_DEPENDENCIES out

  out.join "\n"
end

#write ⇒ Object

Writes the lock file alongside the gem dependencies file



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# File 'lib/rubygems/request_set/lockfile.rb', line 220

def write
  content = to_s

  File.open "#{@gem_deps_file}.lock", "w" do |io|
    io.write content
  end
end