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|
##
# 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.
class Gem::RequestSet::Lockfile
##
# Raised when a lockfile cannot be parsed
class ParseError < Gem::Exception
##
# The column where the error was encountered
attr_reader :column
##
# The line where the error was encountered
attr_reader :line
##
# The location of the lock file
attr_reader :path
##
# Raises a ParseError with the given +message+ which was encountered at a
# +line+ and +column+ while parsing.
def initialize message, column, line, path
@line = line
@column = column
@path = path
super "#{message} (at line #{line} column #{column})"
end
end
##
# Creates a new Lockfile for the given +request_set+ and +gem_deps_file+
# location.
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
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 then
Gem::Requirement.source_set
else
requirement
end
end
deps
end
##
# The platforms for this Lockfile
attr_reader :platforms
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)
@gem_deps_file.untaint unless gem_deps_file.tainted?
@platforms = []
end
def add_DEPENDENCIES out # :nodoc:
out << "DEPENDENCIES"
out.concat @dependencies.sort_by { |name,| name }.map { |name, requirement|
" #{name}#{requirement.for_lockfile}"
}
out << nil
end
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 { |request| request.name }.each do |request|
next if request.spec.name == 'bundler'
platform = "-#{request.spec.platform}" unless
Gem::Platform::RUBY == request.spec.platform
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
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
out << "GIT"
by_repository_revision.each do |(repository, revision), requests|
out << " remote: #{repository}"
out << " revision: #{revision}"
out << " specs:"
requests.sort_by { |request| request.name }.each do |request|
out << " #{request.name} (#{request.version})"
dependencies = request.spec.dependencies.sort_by { |dep| dep.name }
dependencies.each do |dep|
out << " #{dep.name}#{dep.requirement.for_lockfile}"
end
end
end
out << nil
end
def relative_path_from dest, base # :nodoc:
dest = File.expand_path(dest)
base = File.expand_path(base)
if dest.index(base) == 0 then
offset = dest[base.size+1..-1]
return '.' unless offset
offset
else
dest
end
end
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
def add_PLATFORMS out # :nodoc:
out << "PLATFORMS"
platforms = requests.map { |request| request.spec.platform }.uniq
platforms = platforms.sort_by { |platform| platform.to_s }
platforms.each do |platform|
out << " #{platform}"
end
out << nil
end
def spec_groups
requests.group_by { |request| request.spec.class }
end
##
# The contents of the lock file.
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
##
# Writes the lock file alongside the gem dependencies file
def write
content = to_s
open "#{@gem_deps_file}.lock", 'w' do |io|
io.write content
end
end
private
def requests
@set.sorted_requests
end
end
require 'rubygems/request_set/lockfile/tokenizer'
|
