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How to use from_gems_in method of Gem Package

Best Rr_ruby code snippet using Gem.from_gems_in

source_index.rb

Source:source_index.rb

...31  attr_accessor :spec_dirs32  class << self33    # Undef old methods34    %w(from_installed_gems installed_spec_directories35        from_gems_in load_specification).each do |meth|36      if instance_methods(true).find {|m| m.to_s == meth }37        undef_method(meth)38      end39    end40    ##41    # Factory method to construct a source index instance for a given42    # path.43    #44    # deprecated::45    #   If supplied, from_installed_gems will act just like46    #   +from_gems_in+.  This argument is deprecated and is provided47    #   just for backwards compatibility, and should not generally48    #   be used.49    #50    # return::51    #   SourceIndex instance52    def from_installed_gems(*deprecated)53      if deprecated.empty?54        from_gems_in(*installed_spec_directories)55      else56        from_gems_in(*deprecated) # HACK warn57      end58    end59    ##60    # Returns a list of directories from Gem.path that contain specifications.61    def installed_spec_directories62      Gem.path.collect { |dir| File.join(dir, "specifications") }63    end64    ##65    # Creates a new SourceIndex from the ruby format gem specifications in66    # +spec_dirs+.67    def from_gems_in(*spec_dirs)68      source_index = new69      source_index.spec_dirs = spec_dirs70      source_index.refresh!71    end72    ##73    # Loads a ruby-format specification from +file_name+ and returns the74    # loaded spec.75    def load_specification(file_name)76      Gem::Specification.load file_name77    end78  end79  ##80  # Constructs a source index instance from the provided specifications, which81  # is a Hash of gem full names and Gem::Specifications.82  #--83  # TODO merge @gems and @prerelease_gems and provide a separate method84  # #prerelease_gems85  def initialize(specifications={})86    @gems = {}87    specifications.each{ |full_name, spec| add_spec spec }88    @spec_dirs = nil89  end90  # TODO: remove method91  def all_gems92    @gems93  end94  def prerelease_gems95    @gems.reject{ |name, gem| !gem.version.prerelease? }96  end97  def released_gems98    @gems.reject{ |name, gem| gem.version.prerelease? }99  end100  ##101  # Reconstruct the source index from the specifications in +spec_dirs+.102  def load_gems_in(*spec_dirs)103    @gems.clear104    spec_dirs.reverse_each do |spec_dir|105      spec_files = Dir.glob File.join(spec_dir, '*.gemspec')106      spec_files.each do |spec_file|107        gemspec = Gem::Specification.load spec_file108        add_spec gemspec if gemspec109      end110    end111    self112  end113  ##114  # Returns an Array specifications for the latest released versions115  # of each gem in this index.116  def latest_specs(include_prerelease=false)117    result = Hash.new { |h,k| h[k] = [] }118    latest = {}119    sort.each do |_, spec|120      name = spec.name121      curr_ver = spec.version122      prev_ver = latest.key?(name) ? latest[name].version : nil123      next if !include_prerelease && curr_ver.prerelease?124      next unless prev_ver.nil? or curr_ver >= prev_ver or125                  latest[name].platform != Gem::Platform::RUBY126      if prev_ver.nil? or127         (curr_ver > prev_ver and spec.platform == Gem::Platform::RUBY) then128        result[name].clear129        latest[name] = spec130      end131      if spec.platform != Gem::Platform::RUBY then132        result[name].delete_if do |result_spec|133          result_spec.platform == spec.platform134        end135      end136      result[name] << spec137    end138    # TODO: why is this a hash while @gems is an array? Seems like139    # structural similarity would be good.140    result.values.flatten141  end142  ##143  # An array including only the prerelease gemspecs144  def prerelease_specs145    prerelease_gems.values146  end147  ##148  # An array including only the released gemspecs149  def released_specs150    released_gems.values151  end152  ##153  # Add a gem specification to the source index.154  def add_spec(gem_spec, name = gem_spec.full_name)155    # No idea why, but the Indexer wants to insert them using original_name156    # instead of full_name. So we make it an optional arg.157    @gems[name] = gem_spec158  end159  ##160  # Add gem specifications to the source index.161  def add_specs(*gem_specs)162    gem_specs.each do |spec|163      add_spec spec164    end165  end166  ##167  # Remove a gem specification named +full_name+.168  def remove_spec(full_name)169    @gems.delete full_name170  end171  ##172  # Iterate over the specifications in the source index.173  def each(&block) # :yields: gem.full_name, gem174    @gems.each(&block)175  end176  ##177  # The gem specification given a full gem spec name.178  def specification(full_name)179    @gems[full_name]180  end181  ##182  # The signature for the source index.  Changes in the signature indicate a183  # change in the index.184  def index_signature185    require 'digest'186    Digest::SHA256.new.hexdigest(@gems.keys.sort.join(',')).to_s187  end188  ##189  # The signature for the given gem specification.190  def gem_signature(gem_full_name)191    require 'digest'192    Digest::SHA256.new.hexdigest(@gems[gem_full_name].to_yaml).to_s193  end194  def size195    @gems.size196  end197  alias length size198  ##199  # Find a gem by an exact match on the short name.200  def find_name(gem_name, requirement = Gem::Requirement.default)201    dep = Gem::Dependency.new gem_name, requirement202    search dep203  end204  ##205  # Search for a gem by Gem::Dependency +gem_pattern+.  If +only_platform+206  # is true, only gems matching Gem::Platform.local will be returned.  An207  # Array of matching Gem::Specification objects is returned.208  #209  # For backwards compatibility, a String or Regexp pattern may be passed as210  # +gem_pattern+, and a Gem::Requirement for +platform_only+.  This211  # behavior is deprecated and will be removed.212  def search(gem_pattern, platform_only = false)213    requirement = nil214    only_platform = false215    # TODO - Remove support and warning for legacy arguments after 2008/11216    unless Gem::Dependency === gem_pattern217      warn "#{Gem.location_of_caller.join ':'}:Warning: Gem::SourceIndex#search support for #{gem_pattern.class} patterns is deprecated, use #find_name"218    end219    case gem_pattern220    when Regexp then221      requirement = platform_only || Gem::Requirement.default222    when Gem::Dependency then223      only_platform = platform_only224      requirement = gem_pattern.requirement225      gem_pattern = if Regexp === gem_pattern.name then226                      gem_pattern.name227                    elsif gem_pattern.name.empty? then228                      //229                    else230                      /^#{Regexp.escape gem_pattern.name}$/231                    end232    else233      requirement = platform_only || Gem::Requirement.default234      gem_pattern = /#{gem_pattern}/i235    end236    unless Gem::Requirement === requirement then237      requirement = Gem::Requirement.create requirement238    end239    specs = all_gems.values.select do |spec|240      spec.name =~ gem_pattern and241        requirement.satisfied_by? spec.version242    end243    if only_platform then244      specs = specs.select do |spec|245        Gem::Platform.match spec.platform246      end247    end248    specs.sort_by { |s| s.sort_obj }249  end250  ##251  # Replaces the gems in the source index from specifications in the252  # directories this source index was created from.  Raises an exception if253  # this source index wasn't created from a directory (via from_gems_in or254  # from_installed_gems, or having spec_dirs set).255  def refresh!256    raise 'source index not created from disk' if @spec_dirs.nil?257    load_gems_in(*@spec_dirs)258  end259  ##260  # Returns an Array of Gem::Specifications that are not up to date.261  def outdated262    outdateds = []263    latest_specs.each do |local|264      dependency = Gem::Dependency.new local.name, ">= #{local.version}"265      fetcher = Gem::SpecFetcher.fetcher266      remotes = fetcher.find_matching dependency267      remotes = remotes.map { |(_, version, _), _| version }...

from_gems_in

Using AI Code Generation

1def from_gems_in(gems_dir)2  if File.exist?(gems_dir)3    gems_dir = File.expand_path(gems_dir)4    Gem.path.unshift(gems_dir)5def install_gems(gems)6  installer = Gem::DependencyInstaller.new(:version_requirements => '>= 0')7    installer.install(gem)8from_gems_in('gems')9install_gems(['sinatra', 'sinatra-contrib'])

from_gems_in

Using AI Code Generation

1    def self.use_ui(ui)2    def self.use_ui(ui)3    def self.use_ui(ui)4    def self.use_ui(ui)5    def self.use_ui(ui)6    def self.use_ui(ui)

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