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Diffstat (limited to 'lib/rubygems/source/lock.rb')
-rw-r--r-- | lib/rubygems/source/lock.rb | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/lib/rubygems/source/lock.rb b/lib/rubygems/source/lock.rb new file mode 100644 index 0000000000..d8a46d8d10 --- /dev/null +++ b/lib/rubygems/source/lock.rb @@ -0,0 +1,44 @@ +## +# A Lock source wraps an installed gem's source and sorts before other sources +# during dependency resolution. This allows RubyGems to prefer gems from +# dependency lock files. + +class Gem::Source::Lock < Gem::Source + + ## + # The wrapped Gem::Source + + attr_reader :wrapped + + ## + # Creates a new Lock source that wraps +source+ and moves it earlier in the + # sort list. + + def initialize source + @wrapped = source + end + + def <=> other # :nodoc: + case other + when Gem::Source::Lock then + @wrapped <=> other.wrapped + when Gem::Source then + 1 + else + nil + end + end + + def == other # :nodoc: + 0 == (self <=> other) + end + + ## + # Delegates to the wrapped source's fetch_spec method. + + def fetch_spec name_tuple + @wrapped.fetch_spec name_tuple + end + +end + |