Class: Gem::RequestSet
- Inherits:
-
Object
- Object
- Gem::RequestSet
- Includes:
- TSort
- Defined in:
- lib/rubygems/request_set.rb
Overview
A RequestSet groups a request to activate a set of dependencies.
nokogiri = Gem::Dependency.new 'nokogiri', '~> 1.6'
pg = Gem::Dependency.new 'pg', '~> 0.14'
set = Gem::RequestSet.new nokogiri, pg
requests = set.resolve
p requests.map { |r| r.full_name }
#=> ["nokogiri-1.6.0", "mini_portile-0.5.1", "pg-0.17.0"]
Defined Under Namespace
Classes: GemDependencyAPI, Lockfile
Constant Summary collapse
- GemDepedencyAPI =
TODO: remove this typo name at RubyGems 3.0
self
Instance Attribute Summary collapse
-
#always_install ⇒ Object
Array of gems to install even if already installed.
-
#dependencies ⇒ Object
readonly
Returns the value of attribute dependencies.
-
#development ⇒ Object
Returns the value of attribute development.
-
#development_shallow ⇒ Object
Set to true if you want to install only direct development dependencies.
-
#errors ⇒ Object
readonly
Errors fetching gems during resolution.
-
#git_set ⇒ Object
readonly
The set of git gems imported via load_gemdeps.
-
#ignore_dependencies ⇒ Object
When true, dependency resolution is not performed, only the requested gems are installed.
-
#install_dir ⇒ Object
readonly
:nodoc:.
-
#prerelease ⇒ Object
If true, allow dependencies to match prerelease gems.
-
#remote ⇒ Object
When false no remote sets are used for resolving gems.
-
#resolver ⇒ Object
readonly
:nodoc:.
-
#sets ⇒ Object
readonly
Sets used for resolution.
-
#soft_missing ⇒ Object
Treat missing dependencies as silent errors.
-
#vendor_set ⇒ Object
readonly
The set of vendor gems imported via load_gemdeps.
Instance Method Summary collapse
-
#gem(name, *reqs) ⇒ Object
Declare that a gem of name
name
withreqs
requirements is needed. -
#import(deps) ⇒ Object
Add
deps
Gem::Dependency objects to the set. -
#initialize(*deps) {|_self| ... } ⇒ RequestSet
constructor
Creates a RequestSet for a list of Gem::Dependency objects,
deps
. -
#install(options, &block) ⇒ Object
Installs gems for this RequestSet using the Gem::Installer
options
. -
#install_from_gemdeps(options, &block) ⇒ Object
Installs from the gem dependencies files in the
:gemdeps
option inoptions
, yielding to theblock
as in #install. - #install_into(dir, force = true, options = {}) ⇒ Object
-
#load_gemdeps(path, without_groups = [], installing = false) ⇒ Object
Load a dependency management file.
-
#pretty_print(q) ⇒ Object
:nodoc:.
-
#resolve(set = Gem::Resolver::BestSet.new) ⇒ Object
Resolve the requested dependencies and return an Array of Specification objects to be activated.
-
#resolve_current ⇒ Object
Resolve the requested dependencies against the gems available via Gem.path and return an Array of Specification objects to be activated.
- #sorted_requests ⇒ Object
- #specs ⇒ Object
- #specs_in(dir) ⇒ Object
-
#tsort_each_child(node) ⇒ Object
:nodoc:.
-
#tsort_each_node(&block) ⇒ Object
:nodoc:.
Constructor Details
#initialize(*deps) {|_self| ... } ⇒ RequestSet
Creates a RequestSet for a list of Gem::Dependency objects, deps
. You can then #resolve and #install the resolved list of dependencies.
nokogiri = Gem::Dependency.new 'nokogiri', '~> 1.6'
pg = Gem::Dependency.new 'pg', '~> 0.14'
set = Gem::RequestSet.new nokogiri, pg
88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 |
# File 'lib/rubygems/request_set.rb', line 88 def initialize *deps @dependencies = deps @always_install = [] @conservative = false @dependency_names = {} @development = false @development_shallow = false @errors = [] @git_set = nil @ignore_dependencies = false @install_dir = Gem.dir @prerelease = false @remote = true @requests = [] @sets = [] @soft_missing = false @sorted = nil @specs = nil @vendor_set = nil yield self if block_given? end |
Instance Attribute Details
#always_install ⇒ Object
Array of gems to install even if already installed
23 24 25 |
# File 'lib/rubygems/request_set.rb', line 23 def always_install @always_install end |
#dependencies ⇒ Object (readonly)
Returns the value of attribute dependencies.
25 26 27 |
# File 'lib/rubygems/request_set.rb', line 25 def dependencies @dependencies end |
#development ⇒ Object
Returns the value of attribute development.
27 28 29 |
# File 'lib/rubygems/request_set.rb', line 27 def development @development end |
#development_shallow ⇒ Object
Set to true if you want to install only direct development dependencies.
37 38 39 |
# File 'lib/rubygems/request_set.rb', line 37 def development_shallow @development_shallow end |
#errors ⇒ Object (readonly)
Errors fetching gems during resolution.
32 33 34 |
# File 'lib/rubygems/request_set.rb', line 32 def errors @errors end |
#git_set ⇒ Object (readonly)
The set of git gems imported via load_gemdeps.
42 43 44 |
# File 'lib/rubygems/request_set.rb', line 42 def git_set @git_set end |
#ignore_dependencies ⇒ Object
When true, dependency resolution is not performed, only the requested gems are installed.
48 49 50 |
# File 'lib/rubygems/request_set.rb', line 48 def ignore_dependencies @ignore_dependencies end |
#install_dir ⇒ Object (readonly)
:nodoc:
50 51 52 |
# File 'lib/rubygems/request_set.rb', line 50 def install_dir @install_dir end |
#prerelease ⇒ Object
If true, allow dependencies to match prerelease gems.
55 56 57 |
# File 'lib/rubygems/request_set.rb', line 55 def prerelease @prerelease end |
#remote ⇒ Object
When false no remote sets are used for resolving gems.
60 61 62 |
# File 'lib/rubygems/request_set.rb', line 60 def remote @remote end |
#resolver ⇒ Object (readonly)
:nodoc:
62 63 64 |
# File 'lib/rubygems/request_set.rb', line 62 def resolver @resolver end |
#sets ⇒ Object (readonly)
Sets used for resolution
67 68 69 |
# File 'lib/rubygems/request_set.rb', line 67 def sets @sets end |
#soft_missing ⇒ Object
Treat missing dependencies as silent errors
72 73 74 |
# File 'lib/rubygems/request_set.rb', line 72 def soft_missing @soft_missing end |
#vendor_set ⇒ Object (readonly)
The set of vendor gems imported via load_gemdeps.
77 78 79 |
# File 'lib/rubygems/request_set.rb', line 77 def vendor_set @vendor_set end |
Instance Method Details
#gem(name, *reqs) ⇒ Object
Declare that a gem of name name
with reqs
requirements is needed.
115 116 117 118 119 120 121 122 123 |
# File 'lib/rubygems/request_set.rb', line 115 def gem name, *reqs if dep = @dependency_names[name] then dep.requirement.concat reqs else dep = Gem::Dependency.new name, *reqs @dependency_names[name] = dep @dependencies << dep end end |
#import(deps) ⇒ Object
Add deps
Gem::Dependency objects to the set.
128 129 130 |
# File 'lib/rubygems/request_set.rb', line 128 def import deps @dependencies.concat deps end |
#install(options, &block) ⇒ Object
Installs gems for this RequestSet using the Gem::Installer options
.
If a block
is given an activation request
and installer
are yielded. The installer
will be nil
if a gem matching the request was already installed.
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 |
# File 'lib/rubygems/request_set.rb', line 139 def install , &block # :yields: request, installer if dir = [:install_dir] requests = install_into dir, false, , &block return requests end cache_dir = [:cache_dir] || Gem.dir @prerelease = [:prerelease] requests = [] sorted_requests.each do |req| if req.installed? then req.spec.spec.build_extensions if @always_install.none? { |spec| spec == req.spec.spec } then yield req, nil if block_given? next end end path = req.download cache_dir inst = Gem::Installer.new path, yield req, inst if block_given? requests << inst.install end requests ensure raise if $! return requests if [:gemdeps] specs = requests.map do |request| case request when Gem::Resolver::ActivationRequest then request.spec.spec else request end end require 'rubygems/dependency_installer' inst = Gem::DependencyInstaller.new inst.installed_gems.replace specs Gem.done_installing_hooks.each do |hook| hook.call inst, specs end unless Gem.done_installing_hooks.empty? end |
#install_from_gemdeps(options, &block) ⇒ Object
Installs from the gem dependencies files in the :gemdeps
option in options
, yielding to the block
as in #install.
If :without_groups
is given in the options
, those groups in the gem dependencies file are not used. See Gem::Installer for other options
.
199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 |
# File 'lib/rubygems/request_set.rb', line 199 def install_from_gemdeps , &block gemdeps = [:gemdeps] @install_dir = [:install_dir] || Gem.dir @prerelease = [:prerelease] @remote = [:domain] != :local @conservative = true if [:conservative] gem_deps_api = load_gemdeps gemdeps, [:without_groups], true resolve if [:explain] puts "Gems to install:" sorted_requests.each do |spec| puts " #{spec.full_name}" end if Gem.configuration.really_verbose @resolver.stats.display end else installed = install , &block if .fetch :lock, true then lockfile = Gem::RequestSet::Lockfile.build self, gemdeps, gem_deps_api.dependencies lockfile.write end installed end end |
#install_into(dir, force = true, options = {}) ⇒ Object
234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 |
# File 'lib/rubygems/request_set.rb', line 234 def install_into dir, force = true, = {} gem_home, ENV['GEM_HOME'] = ENV['GEM_HOME'], dir existing = force ? [] : specs_in(dir) existing.delete_if { |s| @always_install.include? s } dir = File. dir installed = [] [:development] = false [:install_dir] = dir [:only_install_dir] = true @prerelease = [:prerelease] sorted_requests.each do |request| spec = request.spec if existing.find { |s| s.full_name == spec.full_name } then yield request, nil if block_given? next end spec.install do |installer| yield request, installer if block_given? end installed << request end installed ensure ENV['GEM_HOME'] = gem_home end |
#load_gemdeps(path, without_groups = [], installing = false) ⇒ Object
Load a dependency management file.
272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 |
# File 'lib/rubygems/request_set.rb', line 272 def load_gemdeps path, without_groups = [], installing = false @git_set = Gem::Resolver::GitSet.new @vendor_set = Gem::Resolver::VendorSet.new @git_set.root_dir = @install_dir lock_file = "#{File.expand_path(path)}.lock".untaint begin tokenizer = Gem::RequestSet::Lockfile::Tokenizer.from_file lock_file parser = tokenizer.make_parser self, [] parser.parse rescue Errno::ENOENT end gf = Gem::RequestSet::GemDependencyAPI.new self, path gf.installing = installing gf.without_groups = without_groups if without_groups gf.load end |
#pretty_print(q) ⇒ Object
:nodoc:
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 |
# File 'lib/rubygems/request_set.rb', line 292 def pretty_print q # :nodoc: q.group 2, '[RequestSet:', ']' do q.breakable if @remote then q.text 'remote' q.breakable end if @prerelease then q.text 'prerelease' q.breakable end if @development_shallow then q.text 'shallow development' q.breakable elsif @development then q.text 'development' q.breakable end if @soft_missing then q.text 'soft missing' end q.group 2, '[dependencies:', ']' do q.breakable @dependencies.map do |dep| q.text dep.to_s q.breakable end end q.breakable q.text 'sets:' q.breakable q.pp @sets.map { |set| set.class } end end |
#resolve(set = Gem::Resolver::BestSet.new) ⇒ Object
Resolve the requested dependencies and return an Array of Specification objects to be activated.
338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 |
# File 'lib/rubygems/request_set.rb', line 338 def resolve set = Gem::Resolver::BestSet.new @sets << set @sets << @git_set @sets << @vendor_set set = Gem::Resolver.compose_sets(*@sets) set.remote = @remote set.prerelease = @prerelease resolver = Gem::Resolver.new @dependencies, set resolver.development = @development resolver.development_shallow = @development_shallow resolver.ignore_dependencies = @ignore_dependencies resolver.soft_missing = @soft_missing if @conservative installed_gems = {} Gem::Specification.find_all do |spec| (installed_gems[spec.name] ||= []) << spec end resolver.skip_gems = installed_gems end @resolver = resolver @requests = resolver.resolve @errors = set.errors @requests end |
#resolve_current ⇒ Object
Resolve the requested dependencies against the gems available via Gem.path and return an Array of Specification objects to be activated.
374 375 376 |
# File 'lib/rubygems/request_set.rb', line 374 def resolve_current resolve Gem::Resolver::CurrentSet.new end |
#sorted_requests ⇒ Object
378 379 380 |
# File 'lib/rubygems/request_set.rb', line 378 def sorted_requests @sorted ||= strongly_connected_components.flatten end |
#specs ⇒ Object
382 383 384 |
# File 'lib/rubygems/request_set.rb', line 382 def specs @specs ||= @requests.map { |r| r.full_spec } end |
#specs_in(dir) ⇒ Object
386 387 388 389 390 |
# File 'lib/rubygems/request_set.rb', line 386 def specs_in dir Dir["#{dir}/specifications/*.gemspec"].map do |g| Gem::Specification.load g end end |
#tsort_each_child(node) ⇒ Object
:nodoc:
396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 |
# File 'lib/rubygems/request_set.rb', line 396 def tsort_each_child node # :nodoc: node.spec.dependencies.each do |dep| next if dep.type == :development and not @development match = @requests.find { |r| dep.match? r.spec.name, r.spec.version, @prerelease } unless match then next if dep.type == :development and @development_shallow next if @soft_missing raise Gem::DependencyError, "Unresolved dependency found during sorting - #{dep} (requested by #{node.spec.full_name})" end yield match end end |
#tsort_each_node(&block) ⇒ Object
:nodoc:
392 393 394 |
# File 'lib/rubygems/request_set.rb', line 392 def tsort_each_node &block # :nodoc: @requests.each(&block) end |