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module Bundler
class Index
def self.build
i = new
yield i
i
end
def self.installed_gems
build do |idx|
idx.use bundler_gems
idx.use system_gems
end
end
def self.bundler_gems
Source::BundlerGems.new.specs
end
def self.system_gems
Source::SystemGems.new.specs
end
def self.cached_gems
build do |idx|
idx.use application_cached_gems
idx.use system_cached_gems
end
end
def self.application_cached_gems
path = "#{Bundler.root}/vendor/cache"
if File.directory?(path)
from_cached_specs(path)
end
end
def self.system_cached_gems
from_cached_specs("#{Bundler.bundle_path}/cache")
end
def self.from_cached_specs(path)
Source::GemCache.new("path" => path).specs
end
def initialize
@cache = {}
@specs = Hash.new { |h,k| h[k] = [] }
end
def initialize_copy(o)
super
@cache = {}
@specs = Hash.new { |h,k| h[k] = [] }
merge!(o)
end
def empty?
each { return false }
true
end
def search(query)
case query
when Gem::Specification, RemoteSpecification then search_by_spec(query)
when String then @specs[query]
else search_by_dependency(query)
end
end
alias [] search
def <<(spec)
arr = @specs[spec.name]
arr.delete_if do |s|
s.version == spec.version && s.platform == spec.platform
end
arr << spec
spec
end
def each(&blk)
@specs.values.each do |specs|
specs.each(&blk)
end
end
def use(other)
return unless other
other.each do |s|
next if search_by_spec(s).any?
@specs[s.name] << s
end
self
end
private
def search_by_spec(spec)
@specs[spec.name].select { |s| s.version == spec.version && s.platform == spec.platform }
end
def search_by_dependency(dependency)
@cache[dependency.hash] ||= begin
specs = @specs[dependency.name]
wants_prerelease = dependency.requirement.prerelease?
only_prerelease = specs.all? {|spec| spec.version.prerelease? }
found = specs.select { |spec| dependency =~ spec }
unless wants_prerelease || only_prerelease
found.reject! { |spec| spec.version.prerelease? }
end
found.sort_by {|s| [s.version, s.platform.to_s == 'ruby' ? "\0" : s.platform.to_s] }
end
end
end
end
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