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require "strscan"
module Bundler
class LockfileParser
attr_reader :sources, :dependencies, :specs, :platforms
def initialize(lockfile)
@platforms = []
@sources = []
@dependencies = []
@specs = []
@state = :source
lockfile.split(/\n+/).each do |line|
if line == "DEPENDENCIES"
@state = :dependency
elsif line == "PLATFORMS"
@state = :platform
else
send("parse_#{@state}", line)
end
end
end
private
TYPES = {
"GIT" => Bundler::Source::Git,
"GEM" => Bundler::Source::Rubygems,
"PATH" => Bundler::Source::Path
}
def parse_source(line)
case line
when "GIT", "GEM", "PATH"
@current_source = nil
@opts, @type = {}, line
when " specs:"
@current_source = TYPES[@type].from_lock(@opts)
@sources << @current_source
when /^ ([a-z]+): (.*)$/i
if @opts[$1]
@opts[$1] = Array(@opts[$1])
@opts[$1] << $2
else
@opts[$1] = $2
end
else
parse_spec(line)
end
end
NAME_VERSION = '(?! )(.*?)(?: \((.*)\))?'
def parse_dependency(line)
if line =~ %r{^ {2}#{NAME_VERSION}(!)?$}
name, version, pinned = $1, $2, $3
dep = Bundler::Dependency.new(name, version)
if pinned
dep.source = @specs.find { |s| s.name == dep.name }.source
# Path sources need to know what the default name / version
# to use in the case that there are no gemspecs present. A fake
# gemspec is created based on the version set on the dependency
# TODO: Use the version from the spec instead of from the dependency
if version =~ /^= (.+)$/ && dep.source.is_a?(Bundler::Source::Path)
dep.source.name = name
dep.source.version = $1
end
end
@dependencies << dep
end
end
def parse_spec(line)
if line =~ %r{^ {4}#{NAME_VERSION}$}
@current_spec = LazySpecification.new($1, $2)
@current_spec.source = @current_source
@specs << @current_spec
elsif line =~ %r{^ {6}#{NAME_VERSION}$}
@current_spec.dependencies << Gem::Dependency.new($1, $2)
end
end
def parse_platform(line)
if line =~ /^ (.*)$/
@platforms << Gem::Platform.new($1)
end
end
end
end
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