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

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

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
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 16

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 110

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 100

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 77

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?
          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 30

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 35

def load_specs type # :nodoc:
  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

#pretty_print(q) ⇒ Object

:nodoc:



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# File 'lib/rubygems/source/local.rb', line 120

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