diff options
Diffstat (limited to 'ruby_1_9_3/lib/rubygems/gem_path_searcher.rb')
| -rw-r--r-- | ruby_1_9_3/lib/rubygems/gem_path_searcher.rb | 172 |
1 files changed, 0 insertions, 172 deletions
diff --git a/ruby_1_9_3/lib/rubygems/gem_path_searcher.rb b/ruby_1_9_3/lib/rubygems/gem_path_searcher.rb deleted file mode 100644 index 814b5fb0e5..0000000000 --- a/ruby_1_9_3/lib/rubygems/gem_path_searcher.rb +++ /dev/null @@ -1,172 +0,0 @@ -require "rubygems" -require "rubygems/deprecate" - -## -# GemPathSearcher has the capability to find loadable files inside -# gems. It generates data up front to speed up searches later. - -class Gem::GemPathSearcher - - ## - # Initialise the data we need to make searches later. - - def initialize - # We want a record of all the installed gemspecs, in the order we wish to - # examine them. - # TODO: remove this stupid method - @gemspecs = init_gemspecs - - # Map gem spec to glob of full require_path directories. Preparing this - # information may speed up searches later. - @lib_dirs = {} - - @gemspecs.each do |spec| - @lib_dirs[spec.object_id] = lib_dirs_for spec - end - end - - ## - # Look in all the installed gems until a matching +glob+ is found. - # Return the _gemspec_ of the gem where it was found. If no match - # is found, return nil. - # - # The gems are searched in alphabetical order, and in reverse - # version order. - # - # For example: - # - # find('log4r') # -> (log4r-1.1 spec) - # find('log4r.rb') # -> (log4r-1.1 spec) - # find('rake/rdoctask') # -> (rake-0.4.12 spec) - # find('foobarbaz') # -> nil - # - # Matching paths can have various suffixes ('.rb', '.so', and - # others), which may or may not already be attached to _file_. - # This method doesn't care about the full filename that matches; - # only that there is a match. - - def find(glob) - # HACK violation of encapsulation - @gemspecs.find do |spec| - # TODO: inverted responsibility - matching_file? spec, glob - end - end - - # Looks through the available gemspecs and finds the first - # one that contains +file+ as a requirable file. - - def find_spec_for_file(file) - @gemspecs.find do |spec| - return spec if spec.contains_requirable_file?(file) - end - end - - def find_active(glob) - # HACK violation of encapsulation - @gemspecs.find do |spec| - # TODO: inverted responsibility - spec.loaded? and matching_file? spec, glob - end - end - - ## - # Works like #find, but finds all gemspecs matching +glob+. - - def find_all(glob) - # HACK violation of encapsulation - @gemspecs.select do |spec| - # TODO: inverted responsibility - matching_file? spec, glob - end || [] - end - - def find_in_unresolved(glob) - # HACK violation - specs = Gem.unresolved_deps.values.map { |dep| - Gem.source_index.search dep, true - }.flatten - - specs.select do |spec| - # TODO: inverted responsibility - matching_file? spec, glob - end || [] - end - - def find_in_unresolved_tree glob - # HACK violation - # TODO: inverted responsibility - specs = Gem.unresolved_deps.values.map { |dep| - Gem.source_index.search dep, true - }.flatten - - specs.reverse_each do |spec| - trails = matching_paths(spec, glob) - next if trails.empty? - return trails.map(&:reverse).sort.first.reverse - end - - [] - end - - ## - # Attempts to find a matching path using the require_paths of the given - # +spec+. - - def matching_file?(spec, path) - not matching_files(spec, path).empty? - end - - def matching_paths(spec, path) - trails = [] - - spec.traverse do |from_spec, dep, to_spec, trail| - next unless to_spec.conflicts.empty? - trails << trail unless matching_files(to_spec, path).empty? - end - - trails - end - - ## - # Returns files matching +path+ in +spec+. - #-- - # Some of the intermediate results are cached in @lib_dirs for speed. - - def matching_files(spec, path) - return [] unless @lib_dirs[spec.object_id] # case no paths - glob = File.join @lib_dirs[spec.object_id], "#{path}#{Gem.suffix_pattern}" - Dir[glob].select { |f| File.file? f.untaint } - end - - ## - # Return a list of all installed gemspecs, sorted by alphabetical order and - # in reverse version order. (bar-2, bar-1, foo-2) - - def init_gemspecs - Gem::Specification.sort { |a, b| - names = a.name <=> b.name - next names if names.nonzero? - b.version <=> a.version - } - end - - ## - # Returns library directories glob for a gemspec. For example, - # '/usr/local/lib/ruby/gems/1.8/gems/foobar-1.0/{lib,ext}' - - def lib_dirs_for(spec) - "#{spec.full_gem_path}/{#{spec.require_paths.join(',')}}" if - spec.require_paths - end - - extend Gem::Deprecate - - deprecate :initialize, :none, 2011, 10 - deprecate :find, :none, 2011, 10 - deprecate :find_active, :none, 2011, 10 - deprecate :find_all, :none, 2011, 10 - deprecate :find_in_unresolved, :none, 2011, 10 - deprecate :find_in_unresolved_tree, :none, 2011, 10 - deprecate :find_spec_for_file, :none, 2011, 10 -end |