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module Bundler
class Index
include Enumerable
def self.build
i = new
yield i
i
end
attr_reader :specs, :sources
protected :specs
def initialize
@sources = []
@cache = {}
@specs = Hash.new { |h,k| h[k] = [] }
end
def initialize_copy(o)
super
@sources = @sources.dup
@cache = {}
@specs = Hash.new { |h,k| h[k] = [] }
o.specs.each do |name, array|
@specs[name] = array.dup
end
end
def inspect
"<Index sources=#{sources.map{|s| s.inspect}} specs.size=#{specs.size}>"
end
def empty?
each { return false }
true
end
# Search this index's specs, and any source indexes that this index knows
# about, returning all of the results.
def search(query, base = nil)
results = local_search(query, base)
@sources.each do |source|
results += source.search(query, base)
end
results
end
def local_search(query, base = nil)
case query
when Gem::Specification, RemoteSpecification, LazySpecification, EndpointSpecification then search_by_spec(query)
when String then specs_by_name(query)
when Gem::Dependency then search_by_dependency(query, base)
else
raise "You can't search for a #{query.inspect}."
end
end
def source_types
sources.map{|s| s.class }.uniq
end
alias [] search
def <<(spec)
arr = specs_by_name(spec.name)
arr.delete_if do |s|
same_version?(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
# returns a list of the dependencies
def unmet_dependency_names
dependency_names = specs.values.map do |array_of_s|
array_of_s.map do |s|
s.dependencies.map{|d| d.name }
end
end.flatten.uniq
dependency_names.select{|name| specs_by_name(name).empty? }
end
def use(other, override_dupes = false)
return unless other
other.each do |s|
if (dupes = search_by_spec(s)) && dupes.any?
next unless override_dupes
@specs[s.name] -= dupes
end
@specs[s.name] << s
end
self
end
def size
@sources.inject(@specs.size) do |size, source|
size += source.size
end
end
def ==(o)
all? do |s|
s2 = o[s].first and (s.dependencies & s2.dependencies).empty?
end
end
def add_source(index)
if index.is_a?(Index)
@sources << index
@sources.uniq! # need to use uniq! here instead of checking for the item before adding
else
raise ArgumentError, "Source must be an index, not #{index.class}"
end
end
private
def specs_by_name(name)
@specs[name]
end
def search_by_dependency(dependency, base = nil)
@cache[dependency.hash] ||= begin
specs = specs_by_name(dependency.name) + (base || [])
found = specs.select do |spec|
if base # allow all platforms when searching from a lockfile
dependency.matches_spec?(spec)
else
dependency.matches_spec?(spec) && Gem::Platform.match(spec.platform)
end
end
wants_prerelease = dependency.requirement.prerelease?
only_prerelease = specs.all? {|spec| spec.version.prerelease? }
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
def search_by_spec(spec)
specs_by_name(spec.name).select do |s|
same_version?(s.version, spec.version) && Gem::Platform.new(s.platform) == Gem::Platform.new(spec.platform)
end
end
if RUBY_VERSION < '1.9'
def same_version?(a, b)
regex = /^(.*?)(?:\.0)*$/
a.to_s[regex, 1] == b.to_s[regex, 1]
end
else
def same_version?(a, b)
a == b
end
end
def spec_satisfies_dependency?(spec, dep)
return false unless dep.name === spec.name
dep.requirement.satisfied_by?(spec.version)
end
end
end
|
