Class: Gem::Source::Local

Inherits:
Gem::Source show all
Defined in:
lib/rubygems/source/local.rb

Overview

The local source finds gems in the current directory for fulfilling dependencies.

Constant Summary

Constants inherited from Gem::Source

FILES

Instance Attribute Summary

Attributes inherited from Gem::Source

#uri

Instance Method Summary collapse

Methods inherited from Gem::Source

#==, #cache_dir, #dependency_resolver_set, #hash, #typo_squatting?, #update_cache?

Methods included from Text

#clean_text, #format_text, #levenshtein_distance, #min3, #truncate_text

Constructor Details

#initialize ⇒ Local

:nodoc:



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# File 'lib/rubygems/source/local.rb', line 7

def initialize # :nodoc:
  @specs   = nil
  @api_uri = nil
  @uri     = nil
  @load_specs_names = {}
end

Instance Method Details

#<=>(other) ⇒ Object

Local sorts before Gem::Source and after Gem::Source::Installed



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# File 'lib/rubygems/source/local.rb', line 17

def <=>(other)
  case other
  when Gem::Source::Installed,
       Gem::Source::Lock then
    -1
  when Gem::Source::Local then
    0
  when Gem::Source then
    1
  else
    nil
  end
end

#download(spec, cache_dir = nil) ⇒ Object

:nodoc:

Raises:



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# File 'lib/rubygems/source/local.rb', line 113

def download(spec, cache_dir = nil) # :nodoc:
  load_specs :complete

  @specs.each do |name, data|
    return data[0] if data[1].spec == spec
  end

  raise Gem::Exception, "Unable to find file for '#{spec.full_name}'"
end

#fetch_spec(name) ⇒ Object

:nodoc:



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# File 'lib/rubygems/source/local.rb', line 103

def fetch_spec(name) # :nodoc:
  load_specs :complete

  if data = @specs[name]
    data.last.spec
  else
    raise Gem::Exception, "Unable to find spec for #{name.inspect}"
  end
end

#find_gem(gem_name, version = Gem::Requirement.default, prerelease = false) ⇒ Object

:nodoc:



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# File 'lib/rubygems/source/local.rb', line 80

def find_gem(gem_name, version = Gem::Requirement.default, # :nodoc:
             prerelease = false)
  load_specs :complete

  found = []

  @specs.each do |n, data|
    if n.name == gem_name
      s = data[1].spec

      if version.satisfied_by?(s.version)
        if prerelease
          found << s
        elsif !s.version.prerelease? || version.prerelease?
          found << s
        end
      end
    end
  end

  found.max_by {|s| s.version }
end

#inspect ⇒ Object

:nodoc:



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# File 'lib/rubygems/source/local.rb', line 31

def inspect # :nodoc:
  keys = @specs ? @specs.keys.sort : "NOT LOADED"
  "#<%s specs: %p>" % [self.class, keys]
end

#load_specs(type) ⇒ Object

:nodoc:



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# File 'lib/rubygems/source/local.rb', line 36

def load_specs(type) # :nodoc:
  @load_specs_names[type] ||= begin
    names = []

    @specs = {}

    Dir["*.gem"].each do |file|
      begin
        pkg = Gem::Package.new(file)
      rescue SystemCallError, Gem::Package::FormatError
        # ignore
      else
        tup = pkg.spec.name_tuple
        @specs[tup] = [File.expand_path(file), pkg]

        case type
        when :released
          unless pkg.spec.version.prerelease?
            names << pkg.spec.name_tuple
          end
        when :prerelease
          if pkg.spec.version.prerelease?
            names << pkg.spec.name_tuple
          end
        when :latest
          tup = pkg.spec.name_tuple

          cur = names.find {|x| x.name == tup.name }
          if !cur
            names << tup
          elsif cur.version < tup.version
            names.delete cur
            names << tup
          end
        else
          names << pkg.spec.name_tuple
        end
      end
    end

    names
  end
end

#pretty_print(q) ⇒ Object

:nodoc:



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# File 'lib/rubygems/source/local.rb', line 123

def pretty_print(q) # :nodoc:
  q.group 2, "[Local gems:", "]" do
    q.breakable
    q.seplist @specs.keys do |v|
      q.text v.full_name
    end
  end
end