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# frozen_string_literal: true
module Bundler
class LockfileParser
class Position
attr_reader :line, :column
def initialize(line, column)
@line = line
@column = column
end
def advance!(string)
lines = string.count("\n")
if lines > 0
@line += lines
@column = string.length - string.rindex("\n")
else
@column += string.length
end
end
def to_s
"#{line}:#{column}"
end
end
attr_reader(
:sources,
:dependencies,
:specs,
:platforms,
:bundler_version,
:ruby_version,
:checksums,
)
BUNDLED = "BUNDLED WITH"
DEPENDENCIES = "DEPENDENCIES"
CHECKSUMS = "CHECKSUMS"
PLATFORMS = "PLATFORMS"
RUBY = "RUBY VERSION"
GIT = "GIT"
GEM = "GEM"
PATH = "PATH"
PLUGIN = "PLUGIN SOURCE"
SPECS = " specs:"
OPTIONS = /^ ([a-z]+): (.*)$/i
SOURCE = [GIT, GEM, PATH, PLUGIN].freeze
SECTIONS_BY_VERSION_INTRODUCED = {
Gem::Version.create("1.0") => [DEPENDENCIES, PLATFORMS, GIT, GEM, PATH].freeze,
Gem::Version.create("1.10") => [BUNDLED].freeze,
Gem::Version.create("1.12") => [RUBY].freeze,
Gem::Version.create("1.13") => [PLUGIN].freeze,
Gem::Version.create("2.5.0") => [CHECKSUMS].freeze,
}.freeze
KNOWN_SECTIONS = SECTIONS_BY_VERSION_INTRODUCED.values.flatten!.freeze
ENVIRONMENT_VERSION_SECTIONS = [BUNDLED, RUBY].freeze
deprecate_constant(:ENVIRONMENT_VERSION_SECTIONS)
def self.sections_in_lockfile(lockfile_contents)
sections = lockfile_contents.scan(/^\w[\w ]*$/)
sections.uniq!
sections
end
def self.unknown_sections_in_lockfile(lockfile_contents)
sections_in_lockfile(lockfile_contents) - KNOWN_SECTIONS
end
def self.sections_to_ignore(base_version = nil)
base_version &&= base_version.release
base_version ||= Gem::Version.create("1.0")
attributes = []
SECTIONS_BY_VERSION_INTRODUCED.each do |version, introduced|
next if version <= base_version
attributes += introduced
end
attributes
end
def self.bundled_with
lockfile = Bundler.default_lockfile
return unless lockfile.file?
lockfile_contents = Bundler.read_file(lockfile)
return unless lockfile_contents.include?(BUNDLED)
lockfile_contents.split(BUNDLED).last.strip
end
def initialize(lockfile)
@platforms = []
@sources = []
@dependencies = {}
@parse_method = nil
@specs = {}
@lockfile_path = begin
SharedHelpers.relative_lockfile_path
rescue GemfileNotFound
"Gemfile.lock"
end
@pos = Position.new(1, 1)
if lockfile.match?(/<<<<<<<|=======|>>>>>>>|\|\|\|\|\|\|\|/)
raise LockfileError, "Your #{@lockfile_path} contains merge conflicts.\n" \
"Run `git checkout HEAD -- #{@lockfile_path}` first to get a clean lock."
end
lockfile.split(/((?:\r?\n)+)/) do |line|
# split alternates between the line and the following whitespace
next @pos.advance!(line) if line.match?(/^\s*$/)
if SOURCE.include?(line)
@parse_method = :parse_source
parse_source(line)
elsif line == DEPENDENCIES
@parse_method = :parse_dependency
elsif line == CHECKSUMS
# This is a temporary solution to make this feature disabled by default
# for all gemfiles that don't already explicitly include the feature.
@checksums = true
@parse_method = :parse_checksum
elsif line == PLATFORMS
@parse_method = :parse_platform
elsif line == RUBY
@parse_method = :parse_ruby
elsif line == BUNDLED
@parse_method = :parse_bundled_with
elsif /^[^\s]/.match?(line)
@parse_method = nil
elsif @parse_method
send(@parse_method, line)
end
@pos.advance!(line)
end
@specs = @specs.values.sort_by!(&:full_name)
rescue ArgumentError => e
Bundler.ui.debug(e)
raise LockfileError, "Your lockfile is unreadable. Run `rm #{@lockfile_path}` " \
"and then `bundle install` to generate a new lockfile. The error occurred while " \
"evaluating #{@lockfile_path}:#{@pos}"
end
def may_include_redundant_platform_specific_gems?
bundler_version.nil? || bundler_version < Gem::Version.new("1.16.2")
end
private
TYPES = {
GIT => Bundler::Source::Git,
GEM => Bundler::Source::Rubygems,
PATH => Bundler::Source::Path,
PLUGIN => Bundler::Plugin,
}.freeze
def parse_source(line)
case line
when SPECS
return unless TYPES.key?(@type)
@current_source = TYPES[@type].from_lock(@opts)
@sources << @current_source
when OPTIONS
value = $2
value = true if value == "true"
value = false if value == "false"
key = $1
if @opts[key]
@opts[key] = Array(@opts[key])
@opts[key] << value
else
@opts[key] = value
end
when *SOURCE
@current_source = nil
@opts = {}
@type = line
else
parse_spec(line)
end
end
space = / /
NAME_VERSION = /
^(#{space}{2}|#{space}{4}|#{space}{6})(?!#{space}) # Exactly 2, 4, or 6 spaces at the start of the line
(.*?) # Name
(?:#{space}\(([^-]*) # Space, followed by version
(?:-(.*))?\))? # Optional platform
(!)? # Optional pinned marker
(?:#{space}([^ ]+))? # Optional checksum
$ # Line end
/xo
def parse_dependency(line)
return unless line =~ NAME_VERSION
spaces = $1
return unless spaces.size == 2
name = -$2
version = $3
pinned = $5
version = version.split(",").each(&:strip!) if version
dep = Bundler::Dependency.new(name, version)
if pinned && dep.name != "bundler"
spec = @specs.find {|_, v| v.name == dep.name }
dep.source = spec.last.source if spec
# Path sources need to know what the default name / version
# to use in the case that there are no gemspecs present. A fake
# gemspec is created based on the version set on the dependency
# TODO: Use the version from the spec instead of from the dependency
if version && version.size == 1 && version.first =~ /^\s*= (.+)\s*$/ && dep.source.is_a?(Bundler::Source::Path)
dep.source.name = name
dep.source.version = $1
end
end
@dependencies[dep.name] = dep
end
def parse_checksum(line)
return unless line =~ NAME_VERSION
spaces = $1
return unless spaces.size == 2
checksums = $6
return unless checksums
name = $2
version = $3
platform = $4
version = Gem::Version.new(version)
platform = platform ? Gem::Platform.new(platform) : Gem::Platform::RUBY
full_name = Gem::NameTuple.new(name, version, platform).full_name
return unless spec = @specs[full_name]
checksums.split(",") do |lock_checksum|
column = line.index(lock_checksum) + 1
checksum = Checksum.from_lock(lock_checksum, "#{@lockfile_path}:#{@pos.line}:#{column}")
spec.source.checksum_store.register(spec, checksum)
end
end
def parse_spec(line)
return unless line =~ NAME_VERSION
spaces = $1
name = -$2
version = $3
if spaces.size == 4
# only load platform for non-dependency (spec) line
platform = $4
version = Gem::Version.new(version)
platform = platform ? Gem::Platform.new(platform) : Gem::Platform::RUBY
@current_spec = LazySpecification.new(name, version, platform, @current_source)
@current_source.add_dependency_names(name)
@specs[@current_spec.full_name] = @current_spec
elsif spaces.size == 6
version = version.split(",").each(&:strip!) if version
dep = Gem::Dependency.new(name, version)
@current_spec.dependencies << dep
end
end
def parse_platform(line)
@platforms << Gem::Platform.new($1) if line =~ /^ (.*)$/
end
def parse_bundled_with(line)
line.strip!
return unless Gem::Version.correct?(line)
@bundler_version = Gem::Version.create(line)
end
def parse_ruby(line)
line.strip!
@ruby_version = line
end
end
end