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module Bundler
class DslError < StandardError; end
class Dsl
def self.evaluate(gemfile)
builder = new
builder.instance_eval(File.read(gemfile.to_s), gemfile.to_s, 1)
builder.to_definition
end
def initialize
@sources = [] # Gem.sources.map { |s| Source::Rubygems.new(:uri => s) }
@dependencies = []
@group = nil
end
def gem(name, *args)
options = Hash === args.last ? args.pop : {}
version = args.last || ">= 0"
_normalize_options(name, version, options)
@dependencies << Dependency.new(name, version, options)
end
def source(source, options = {})
source = case source
when :gemcutter, :rubygems, :rubyforge then Source::Rubygems.new(:uri => "http://gemcutter.org")
when String then Source::Rubygems.new(:uri => source)
else source
end
options[:prepend] ? @sources.unshift(source) : @sources << source
source
end
def path(path, options = {})
source Source::Path.new(options.merge(:path => path)), options
end
def git(uri, options = {})
source Source::Git.new(options.merge(:uri => uri)), options
end
def to_definition
Definition.new(@dependencies, @sources)
end
def group(name, options = {}, &blk)
old, @group = @group, name
yield
ensure
@group = old
end
private
def _version?(version)
version && Gem::Version.new(version) rescue false
end
def _normalize_options(name, version, opts)
opts.each do |k, v|
opts[k.to_s] = v
end
opts["group"] ||= @group
# Normalize git and path options
["git", "path"].each do |type|
if param = opts[type]
source = send(type, param, opts.merge(:prepend => true))
source.default_spec name, version if _version?(version)
opts["source"] = source
end
end
end
end
end
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