Class: Gem::DependencyInstaller

Inherits:
Object
  • Object
show all
Extended by:
Deprecate
Includes:
UserInteraction
Defined in:
lib/rubygems/dependency_installer.rb

Overview

Installs a gem along with all its dependencies from local and remote gems.

Constant Summary collapse

DEFAULT_OPTIONS =

:nodoc:

{ # :nodoc:
  env_shebang: false,
  document: %w[ri],
  domain: :both, # HACK: dup
  force: false,
  format_executable: false, # HACK: dup
  ignore_dependencies: false,
  prerelease: false,
  security_policy: nil, # HACK: NoSecurity requires OpenSSL. AlmostNo? Low?
  wrappers: true,
  build_args: nil,
  build_docs_in_background: false,
  install_as_default: false,
}.freeze

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Deprecate

deprecate, next_rubygems_major_version, rubygems_deprecate, rubygems_deprecate_command, skip, skip=, skip_during

Methods included from UserInteraction

#alert, #alert_error, #alert_warning, #ask, #ask_for_password, #ask_yes_no, #choose_from_list, #say, #terminate_interaction, #verbose

Methods included from DefaultUserInteraction

ui, #ui, ui=, #ui=, use_ui, #use_ui

Methods included from Text

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

Constructor Details

#initialize(options = {}) ⇒ DependencyInstaller

Creates a new installer instance.

Options are:

:cache_dir

Alternate repository path to store .gem files in.

:domain

:local, :remote, or :both. :local only searches gems in the current directory. :remote searches only gems in Gem::sources. :both searches both.

:env_shebang

See Gem::Installer::new.

:force

See Gem::Installer#install.

:format_executable

See Gem::Installer#initialize.

:ignore_dependencies

Don’t install any dependencies.

:install_dir

See Gem::Installer#install.

:prerelease

Allow prerelease versions. See #install.

:security_policy

See Gem::Installer::new and Gem::Security.

:user_install

See Gem::Installer.new

:wrappers

See Gem::Installer::new

:build_args

See Gem::Installer::new



68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
# File 'lib/rubygems/dependency_installer.rb', line 68

def initialize(options = {})
  @only_install_dir = !options[:install_dir].nil?
  @install_dir = options[:install_dir] || Gem.dir
  @build_root = options[:build_root]

  options = DEFAULT_OPTIONS.merge options

  @bin_dir             = options[:bin_dir]
  @dev_shallow         = options[:dev_shallow]
  @development         = options[:development]
  @document            = options[:document]
  @domain              = options[:domain]
  @env_shebang         = options[:env_shebang]
  @force               = options[:force]
  @format_executable   = options[:format_executable]
  @ignore_dependencies = options[:ignore_dependencies]
  @prerelease          = options[:prerelease]
  @security_policy     = options[:security_policy]
  @user_install        = options[:user_install]
  @wrappers            = options[:wrappers]
  @build_args          = options[:build_args]
  @build_docs_in_background = options[:build_docs_in_background]
  @install_as_default = options[:install_as_default]
  @dir_mode = options[:dir_mode]
  @data_mode = options[:data_mode]
  @prog_mode = options[:prog_mode]

  # Indicates that we should not try to update any deps unless
  # we absolutely must.
  @minimal_deps = options[:minimal_deps]

  @available      = nil
  @installed_gems = []
  @toplevel_specs = nil

  @cache_dir = options[:cache_dir] || @install_dir

  @errors = []
end

Instance Attribute Details

#documentObject (readonly)

Documentation types. For use by the Gem.done_installing hook



37
38
39
# File 'lib/rubygems/dependency_installer.rb', line 37

def document
  @document
end

#errorsObject (readonly)

Errors from SpecFetcher while searching for remote specifications



42
43
44
# File 'lib/rubygems/dependency_installer.rb', line 42

def errors
  @errors
end

#installed_gemsObject (readonly)

List of gems installed by #install in alphabetic order



47
48
49
# File 'lib/rubygems/dependency_installer.rb', line 47

def installed_gems
  @installed_gems
end

Instance Method Details

#consider_local?Boolean

Indicated, based on the requested domain, if local gems should be considered.

Returns:

  • (Boolean)


112
113
114
# File 'lib/rubygems/dependency_installer.rb', line 112

def consider_local?
  @domain == :both || @domain == :local
end

#consider_remote?Boolean

Indicated, based on the requested domain, if remote gems should be considered.

Returns:

  • (Boolean)


120
121
122
# File 'lib/rubygems/dependency_installer.rb', line 120

def consider_remote?
  @domain == :both || @domain == :remote
end

#find_gems_with_sources(dep, best_only = false) ⇒ Object

Returns a list of pairs of gemspecs and source_uris that match Gem::Dependency dep from both local (Dir.pwd) and remote (Gem.sources) sources. Gems are sorted with newer gems preferred over older gems, and local gems preferred over remote gems.



130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
# File 'lib/rubygems/dependency_installer.rb', line 130

def find_gems_with_sources(dep, best_only=false) # :nodoc:
  set = Gem::AvailableSet.new

  if consider_local?
    sl = Gem::Source::Local.new

    if spec = sl.find_gem(dep.name)
      if dep.matches_spec? spec
        set.add spec, sl
      end
    end
  end

  if consider_remote?
    begin
      # This is pulled from #spec_for_dependency to allow
      # us to filter tuples before fetching specs.
      tuples, errors = Gem::SpecFetcher.fetcher.search_for_dependency dep

      if best_only && !tuples.empty?
        tuples.sort! do |a,b|
          if b[0].version == a[0].version
            if b[0].platform != Gem::Platform::RUBY
              1
            else
              -1
            end
          else
            b[0].version <=> a[0].version
          end
        end
        tuples = [tuples.first]
      end

      specs = []
      tuples.each do |tup, source|
        spec = source.fetch_spec(tup)
      rescue Gem::RemoteFetcher::FetchError => e
        errors << Gem::SourceFetchProblem.new(source, e)
      else
        specs << [spec, source]
      end

      if @errors
        @errors += errors
      else
        @errors = errors
      end

      set << specs
    rescue Gem::RemoteFetcher::FetchError => e
      # FIX if there is a problem talking to the network, we either need to always tell
      # the user (no really_verbose) or fail hard, not silently tell them that we just
      # couldn't find their requested gem.
      verbose do
        "Error fetching remote data:\t\t#{e.message}\n" \
          "Falling back to local-only install"
      end
      @domain = :local
    end
  end

  set
end

#in_background(what) ⇒ Object

:nodoc:



196
197
198
199
200
201
202
203
204
205
206
207
208
209
# File 'lib/rubygems/dependency_installer.rb', line 196

def in_background(what) # :nodoc:
  fork_happened = false
  if @build_docs_in_background && Process.respond_to?(:fork)
    begin
      Process.fork do
        yield
      end
      fork_happened = true
      say "#{what} in a background process."
    rescue NotImplementedError
    end
  end
  yield unless fork_happened
end

#install(dep_or_name, version = Gem::Requirement.default) ⇒ Object

Installs the gem dep_or_name and all its dependencies. Returns an Array of installed gem specifications.

If the :prerelease option is set and there is a prerelease for dep_or_name the prerelease version will be installed.

Unless explicitly specified as a prerelease dependency, prerelease gems that dep_or_name depend on will not be installed.

If c-1.a depends on b-1 and a-1.a and there is a gem b-1.a available then c-1.a, b-1 and a-1.a will be installed. b-1.a will need to be installed separately.



225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
# File 'lib/rubygems/dependency_installer.rb', line 225

def install(dep_or_name, version = Gem::Requirement.default)
  request_set = resolve_dependencies dep_or_name, version

  @installed_gems = []

  options = {
    bin_dir: @bin_dir,
    build_args: @build_args,
    document: @document,
    env_shebang: @env_shebang,
    force: @force,
    format_executable: @format_executable,
    ignore_dependencies: @ignore_dependencies,
    prerelease: @prerelease,
    security_policy: @security_policy,
    user_install: @user_install,
    wrappers: @wrappers,
    build_root: @build_root,
    install_as_default: @install_as_default,
    dir_mode: @dir_mode,
    data_mode: @data_mode,
    prog_mode: @prog_mode,
  }
  options[:install_dir] = @install_dir if @only_install_dir

  request_set.install options do |_, installer|
    @installed_gems << installer.spec if installer
  end

  @installed_gems.sort!

  # Since this is currently only called for docs, we can be lazy and just say
  # it's documentation. Ideally the hook adder could decide whether to be in
  # the background or not, and what to call it.
  in_background "Installing documentation" do
    Gem.done_installing_hooks.each do |hook|
      hook.call self, @installed_gems
    end
  end unless Gem.done_installing_hooks.empty?

  @installed_gems
end

#install_development_depsObject

:nodoc:



268
269
270
271
272
273
274
275
276
# File 'lib/rubygems/dependency_installer.rb', line 268

def install_development_deps # :nodoc:
  if @development && @dev_shallow
    :shallow
  elsif @development
    :all
  else
    :none
  end
end

#resolve_dependencies(dep_or_name, version) ⇒ Object

:nodoc:



278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
# File 'lib/rubygems/dependency_installer.rb', line 278

def resolve_dependencies(dep_or_name, version) # :nodoc:
  request_set = Gem::RequestSet.new
  request_set.development         = @development
  request_set.development_shallow = @dev_shallow
  request_set.soft_missing = @force
  request_set.prerelease = @prerelease

  installer_set = Gem::Resolver::InstallerSet.new @domain
  installer_set.ignore_installed = (@minimal_deps == false) || @only_install_dir
  installer_set.force = @force

  if consider_local?
    if dep_or_name =~ /\.gem$/ && File.file?(dep_or_name)
      src = Gem::Source::SpecificFile.new dep_or_name
      installer_set.add_local dep_or_name, src.spec, src
      version = src.spec.version if version == Gem::Requirement.default
    elsif dep_or_name =~ /\.gem$/ # rubocop:disable Performance/RegexpMatch
      Dir[dep_or_name].each do |name|
        src = Gem::Source::SpecificFile.new name
        installer_set.add_local dep_or_name, src.spec, src
      rescue Gem::Package::FormatError
      end
      # else This is a dependency. InstallerSet handles this case
    end
  end

  dependency =
    if spec = installer_set.local?(dep_or_name)
      installer_set.remote = nil if spec.dependencies.none?
      Gem::Dependency.new spec.name, version
    elsif String === dep_or_name
      Gem::Dependency.new dep_or_name, version
    else
      dep_or_name
    end

  dependency.prerelease = @prerelease

  request_set.import [dependency]

  installer_set.add_always_install dependency

  request_set.always_install = installer_set.always_install
  request_set.remote = installer_set.consider_remote?

  if @ignore_dependencies
    installer_set.ignore_dependencies = true
    request_set.ignore_dependencies   = true
    request_set.soft_missing          = true
  end

  request_set.resolve installer_set

  @errors.concat request_set.errors

  request_set
end