File: C:/Ruby27-x64/share/doc/ruby/html/Gem/DependencyInstaller.html
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<h3>Included Modules</h3>
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<h3>Extended With Modules</h3>
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<h3>Methods</h3>
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<li ><a href="#method-c-new">::new</a>
<li ><a href="#method-i-consider_local-3F">#consider_local?</a>
<li ><a href="#method-i-consider_remote-3F">#consider_remote?</a>
<li ><a href="#method-i-find_spec_by_name_and_version">#find_spec_by_name_and_version</a>
<li ><a href="#method-i-install">#install</a>
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<main role="main" aria-labelledby="class-Gem::DependencyInstaller">
<h1 id="class-Gem::DependencyInstaller" class="class">
class Gem::DependencyInstaller
</h1>
<section class="description">
<p>Installs a gem along with all its dependencies from local and remote gems.</p>
</section>
<section id="5Buntitled-5D" class="documentation-section">
<section class="attribute-method-details" class="method-section">
<header>
<h3>Attributes</h3>
</header>
<div id="attribute-i-document" class="method-detail">
<div class="method-heading attribute-method-heading">
<span class="method-name">document</span><span
class="attribute-access-type">[R]</span>
</div>
<div class="method-description">
<p>Documentation types. For use by the <a href="../Gem.html#method-c-done_installing"><code>Gem.done_installing</code></a> hook</p>
</div>
</div>
<div id="attribute-i-errors" class="method-detail">
<div class="method-heading attribute-method-heading">
<span class="method-name">errors</span><span
class="attribute-access-type">[R]</span>
</div>
<div class="method-description">
<p>Errors from SpecFetcher while searching for remote specifications</p>
</div>
</div>
<div id="attribute-i-installed_gems" class="method-detail">
<div class="method-heading attribute-method-heading">
<span class="method-name">installed_gems</span><span
class="attribute-access-type">[R]</span>
</div>
<div class="method-description">
<p>List of gems installed by <a href="DependencyInstaller.html#method-i-install"><code>install</code></a> in alphabetic order</p>
</div>
</div>
</section>
<section id="public-class-5Buntitled-5D-method-details" class="method-section">
<header>
<h3>Public Class Methods</h3>
</header>
<div id="method-c-new" class="method-detail ">
<div class="method-heading">
<span class="method-name">new</span><span
class="method-args">(options = {})</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<p>Creates a new installer instance.</p>
<p>Options are:</p>
<dl class="rdoc-list note-list"><dt>:cache_dir
<dd>
<p>Alternate repository path to store .gem files in.</p>
</dd><dt>:domain
<dd>
<p>:local, :remote, or :both. :local only searches gems in the current directory. :remote searches only gems in <a href="../Gem.html#method-c-sources"><code>Gem::sources</code></a>. :both searches both.</p>
</dd><dt>:env_shebang
<dd>
<p>See <a href="Installer.html#method-c-new"><code>Gem::Installer::new</code></a>.</p>
</dd><dt>:force
<dd>
<p>See <a href="Installer.html#method-i-install"><code>Gem::Installer#install</code></a>.</p>
</dd><dt>:format_executable
<dd>
<p>See Gem::Installer#initialize.</p>
</dd><dt>:ignore_dependencies
<dd>
<p>Don't install any dependencies.</p>
</dd><dt>:install_dir
<dd>
<p>See <a href="Installer.html#method-i-install"><code>Gem::Installer#install</code></a>.</p>
</dd><dt>:prerelease
<dd>
<p>Allow prerelease versions. See <a href="DependencyInstaller.html#method-i-install"><code>install</code></a>.</p>
</dd><dt>:security_policy
<dd>
<p>See <a href="Installer.html#method-c-new"><code>Gem::Installer::new</code></a> and <a href="Security.html"><code>Gem::Security</code></a>.</p>
</dd><dt>:user_install
<dd>
<p>See <a href="Installer.html#method-c-new"><code>Gem::Installer.new</code></a></p>
</dd><dt>:wrappers
<dd>
<p>See <a href="Installer.html#method-c-new"><code>Gem::Installer::new</code></a></p>
</dd><dt>:build_args
<dd>
<p>See <a href="Installer.html#method-c-new"><code>Gem::Installer::new</code></a></p>
</dd></dl>
<div class="method-source-code" id="new-source">
<pre><span class="ruby-comment"># File lib/rubygems/dependency_installer.rb, line 69</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">initialize</span>(<span class="ruby-identifier">options</span> = {})
<span class="ruby-ivar">@only_install_dir</span> = <span class="ruby-operator">!</span><span class="ruby-operator">!</span><span class="ruby-identifier">options</span>[<span class="ruby-value">:install_dir</span>]
<span class="ruby-ivar">@install_dir</span> = <span class="ruby-identifier">options</span>[<span class="ruby-value">:install_dir</span>] <span class="ruby-operator">||</span> <span class="ruby-constant">Gem</span>.<span class="ruby-identifier">dir</span>
<span class="ruby-ivar">@build_root</span> = <span class="ruby-identifier">options</span>[<span class="ruby-value">:build_root</span>]
<span class="ruby-identifier">options</span> = <span class="ruby-constant">DEFAULT_OPTIONS</span>.<span class="ruby-identifier">merge</span> <span class="ruby-identifier">options</span>
<span class="ruby-ivar">@bin_dir</span> = <span class="ruby-identifier">options</span>[<span class="ruby-value">:bin_dir</span>]
<span class="ruby-ivar">@dev_shallow</span> = <span class="ruby-identifier">options</span>[<span class="ruby-value">:dev_shallow</span>]
<span class="ruby-ivar">@development</span> = <span class="ruby-identifier">options</span>[<span class="ruby-value">:development</span>]
<span class="ruby-ivar">@document</span> = <span class="ruby-identifier">options</span>[<span class="ruby-value">:document</span>]
<span class="ruby-ivar">@domain</span> = <span class="ruby-identifier">options</span>[<span class="ruby-value">:domain</span>]
<span class="ruby-ivar">@env_shebang</span> = <span class="ruby-identifier">options</span>[<span class="ruby-value">:env_shebang</span>]
<span class="ruby-ivar">@force</span> = <span class="ruby-identifier">options</span>[<span class="ruby-value">:force</span>]
<span class="ruby-ivar">@format_executable</span> = <span class="ruby-identifier">options</span>[<span class="ruby-value">:format_executable</span>]
<span class="ruby-ivar">@ignore_dependencies</span> = <span class="ruby-identifier">options</span>[<span class="ruby-value">:ignore_dependencies</span>]
<span class="ruby-ivar">@prerelease</span> = <span class="ruby-identifier">options</span>[<span class="ruby-value">:prerelease</span>]
<span class="ruby-ivar">@security_policy</span> = <span class="ruby-identifier">options</span>[<span class="ruby-value">:security_policy</span>]
<span class="ruby-ivar">@user_install</span> = <span class="ruby-identifier">options</span>[<span class="ruby-value">:user_install</span>]
<span class="ruby-ivar">@wrappers</span> = <span class="ruby-identifier">options</span>[<span class="ruby-value">:wrappers</span>]
<span class="ruby-ivar">@build_args</span> = <span class="ruby-identifier">options</span>[<span class="ruby-value">:build_args</span>]
<span class="ruby-ivar">@build_docs_in_background</span> = <span class="ruby-identifier">options</span>[<span class="ruby-value">:build_docs_in_background</span>]
<span class="ruby-ivar">@install_as_default</span> = <span class="ruby-identifier">options</span>[<span class="ruby-value">:install_as_default</span>]
<span class="ruby-ivar">@dir_mode</span> = <span class="ruby-identifier">options</span>[<span class="ruby-value">:dir_mode</span>]
<span class="ruby-ivar">@data_mode</span> = <span class="ruby-identifier">options</span>[<span class="ruby-value">:data_mode</span>]
<span class="ruby-ivar">@prog_mode</span> = <span class="ruby-identifier">options</span>[<span class="ruby-value">:prog_mode</span>]
<span class="ruby-comment"># Indicates that we should not try to update any deps unless</span>
<span class="ruby-comment"># we absolutely must.</span>
<span class="ruby-ivar">@minimal_deps</span> = <span class="ruby-identifier">options</span>[<span class="ruby-value">:minimal_deps</span>]
<span class="ruby-ivar">@available</span> = <span class="ruby-keyword">nil</span>
<span class="ruby-ivar">@installed_gems</span> = []
<span class="ruby-ivar">@toplevel_specs</span> = <span class="ruby-keyword">nil</span>
<span class="ruby-ivar">@cache_dir</span> = <span class="ruby-identifier">options</span>[<span class="ruby-value">:cache_dir</span>] <span class="ruby-operator">||</span> <span class="ruby-ivar">@install_dir</span>
<span class="ruby-ivar">@errors</span> = []
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
</section>
<section id="public-instance-5Buntitled-5D-method-details" class="method-section">
<header>
<h3>Public Instance Methods</h3>
</header>
<div id="method-i-consider_local-3F" class="method-detail ">
<div class="method-heading">
<span class="method-name">consider_local?</span><span
class="method-args">()</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<p>Indicated, based on the requested domain, if local gems should be considered.</p>
<div class="method-source-code" id="consider_local-3F-source">
<pre><span class="ruby-comment"># File lib/rubygems/dependency_installer.rb, line 134</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">consider_local?</span>
<span class="ruby-ivar">@domain</span> <span class="ruby-operator">==</span> <span class="ruby-value">:both</span> <span class="ruby-keyword">or</span> <span class="ruby-ivar">@domain</span> <span class="ruby-operator">==</span> <span class="ruby-value">:local</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div id="method-i-consider_remote-3F" class="method-detail ">
<div class="method-heading">
<span class="method-name">consider_remote?</span><span
class="method-args">()</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<p>Indicated, based on the requested domain, if remote gems should be considered.</p>
<div class="method-source-code" id="consider_remote-3F-source">
<pre><span class="ruby-comment"># File lib/rubygems/dependency_installer.rb, line 142</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">consider_remote?</span>
<span class="ruby-ivar">@domain</span> <span class="ruby-operator">==</span> <span class="ruby-value">:both</span> <span class="ruby-keyword">or</span> <span class="ruby-ivar">@domain</span> <span class="ruby-operator">==</span> <span class="ruby-value">:remote</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div id="method-i-find_spec_by_name_and_version" class="method-detail ">
<div class="method-heading">
<span class="method-name">find_spec_by_name_and_version</span><span
class="method-args">(gem_name, version = Gem::Requirement.default, prerelease = false)</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<p>Finds a spec and the source_uri it came from for gem <code>gem_name</code> and <code>version</code>. Returns an <a href="../Array.html"><code>Array</code></a> of specs and sources required for installation of the gem.</p>
<div class="method-source-code" id="find_spec_by_name_and_version-source">
<pre><span class="ruby-comment"># File lib/rubygems/dependency_installer.rb, line 226</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">find_spec_by_name_and_version</span>(<span class="ruby-identifier">gem_name</span>,
<span class="ruby-identifier">version</span> = <span class="ruby-constant">Gem</span><span class="ruby-operator">::</span><span class="ruby-constant">Requirement</span>.<span class="ruby-identifier">default</span>,
<span class="ruby-identifier">prerelease</span> = <span class="ruby-keyword">false</span>)
<span class="ruby-identifier">set</span> = <span class="ruby-constant">Gem</span><span class="ruby-operator">::</span><span class="ruby-constant">AvailableSet</span>.<span class="ruby-identifier">new</span>
<span class="ruby-keyword">if</span> <span class="ruby-identifier">consider_local?</span>
<span class="ruby-keyword">if</span> <span class="ruby-identifier">gem_name</span> <span class="ruby-operator">=~</span> <span class="ruby-regexp">/\.gem$/</span> <span class="ruby-keyword">and</span> <span class="ruby-constant">File</span>.<span class="ruby-identifier">file?</span> <span class="ruby-identifier">gem_name</span>
<span class="ruby-identifier">src</span> = <span class="ruby-constant">Gem</span><span class="ruby-operator">::</span><span class="ruby-constant">Source</span><span class="ruby-operator">::</span><span class="ruby-constant">SpecificFile</span>.<span class="ruby-identifier">new</span>(<span class="ruby-identifier">gem_name</span>)
<span class="ruby-identifier">set</span>.<span class="ruby-identifier">add</span> <span class="ruby-identifier">src</span>.<span class="ruby-identifier">spec</span>, <span class="ruby-identifier">src</span>
<span class="ruby-keyword">elsif</span> <span class="ruby-identifier">gem_name</span> <span class="ruby-operator">=~</span> <span class="ruby-regexp">/\.gem$/</span>
<span class="ruby-constant">Dir</span>[<span class="ruby-identifier">gem_name</span>].<span class="ruby-identifier">each</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">name</span><span class="ruby-operator">|</span>
<span class="ruby-keyword">begin</span>
<span class="ruby-identifier">src</span> = <span class="ruby-constant">Gem</span><span class="ruby-operator">::</span><span class="ruby-constant">Source</span><span class="ruby-operator">::</span><span class="ruby-constant">SpecificFile</span>.<span class="ruby-identifier">new</span> <span class="ruby-identifier">name</span>
<span class="ruby-identifier">set</span>.<span class="ruby-identifier">add</span> <span class="ruby-identifier">src</span>.<span class="ruby-identifier">spec</span>, <span class="ruby-identifier">src</span>
<span class="ruby-keyword">rescue</span> <span class="ruby-constant">Gem</span><span class="ruby-operator">::</span><span class="ruby-constant">Package</span><span class="ruby-operator">::</span><span class="ruby-constant">FormatError</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">else</span>
<span class="ruby-identifier">local</span> = <span class="ruby-constant">Gem</span><span class="ruby-operator">::</span><span class="ruby-constant">Source</span><span class="ruby-operator">::</span><span class="ruby-constant">Local</span>.<span class="ruby-identifier">new</span>
<span class="ruby-keyword">if</span> <span class="ruby-identifier">s</span> = <span class="ruby-identifier">local</span>.<span class="ruby-identifier">find_gem</span>(<span class="ruby-identifier">gem_name</span>, <span class="ruby-identifier">version</span>)
<span class="ruby-identifier">set</span>.<span class="ruby-identifier">add</span> <span class="ruby-identifier">s</span>, <span class="ruby-identifier">local</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">if</span> <span class="ruby-identifier">set</span>.<span class="ruby-identifier">empty?</span>
<span class="ruby-identifier">dep</span> = <span class="ruby-constant">Gem</span><span class="ruby-operator">::</span><span class="ruby-constant">Dependency</span>.<span class="ruby-identifier">new</span> <span class="ruby-identifier">gem_name</span>, <span class="ruby-identifier">version</span>
<span class="ruby-identifier">dep</span>.<span class="ruby-identifier">prerelease</span> = <span class="ruby-keyword">true</span> <span class="ruby-keyword">if</span> <span class="ruby-identifier">prerelease</span>
<span class="ruby-identifier">set</span> = <span class="ruby-constant">Gem</span><span class="ruby-operator">::</span><span class="ruby-constant">Deprecate</span>.<span class="ruby-identifier">skip_during</span> <span class="ruby-keyword">do</span>
<span class="ruby-identifier">find_gems_with_sources</span>(<span class="ruby-identifier">dep</span>, <span class="ruby-keyword">true</span>)
<span class="ruby-keyword">end</span>
<span class="ruby-identifier">set</span>.<span class="ruby-identifier">match_platform!</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">if</span> <span class="ruby-identifier">set</span>.<span class="ruby-identifier">empty?</span>
<span class="ruby-identifier">raise</span> <span class="ruby-constant">Gem</span><span class="ruby-operator">::</span><span class="ruby-constant">SpecificGemNotFoundException</span>.<span class="ruby-identifier">new</span>(<span class="ruby-identifier">gem_name</span>, <span class="ruby-identifier">version</span>, <span class="ruby-ivar">@errors</span>)
<span class="ruby-keyword">end</span>
<span class="ruby-ivar">@available</span> = <span class="ruby-identifier">set</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div id="method-i-install" class="method-detail ">
<div class="method-heading">
<span class="method-name">install</span><span
class="method-args">(dep_or_name, version = Gem::Requirement.default)</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<p>Installs the gem <code>dep_or_name</code> and all its dependencies. Returns an <a href="../Array.html"><code>Array</code></a> of installed gem specifications.</p>
<p>If the <code>:prerelease</code> option is set and there is a prerelease for <code>dep_or_name</code> the prerelease version will be installed.</p>
<p>Unless explicitly specified as a prerelease dependency, prerelease gems that <code>dep_or_name</code> depend on will not be installed.</p>
<p>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.</p>
<div class="method-source-code" id="install-source">
<pre><span class="ruby-comment"># File lib/rubygems/dependency_installer.rb, line 300</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">install</span>(<span class="ruby-identifier">dep_or_name</span>, <span class="ruby-identifier">version</span> = <span class="ruby-constant">Gem</span><span class="ruby-operator">::</span><span class="ruby-constant">Requirement</span>.<span class="ruby-identifier">default</span>)
<span class="ruby-identifier">request_set</span> = <span class="ruby-identifier">resolve_dependencies</span> <span class="ruby-identifier">dep_or_name</span>, <span class="ruby-identifier">version</span>
<span class="ruby-ivar">@installed_gems</span> = []
<span class="ruby-identifier">options</span> = {
<span class="ruby-value">:bin_dir</span> <span class="ruby-operator">=></span> <span class="ruby-ivar">@bin_dir</span>,
<span class="ruby-value">:build_args</span> <span class="ruby-operator">=></span> <span class="ruby-ivar">@build_args</span>,
<span class="ruby-value">:document</span> <span class="ruby-operator">=></span> <span class="ruby-ivar">@document</span>,
<span class="ruby-value">:env_shebang</span> <span class="ruby-operator">=></span> <span class="ruby-ivar">@env_shebang</span>,
<span class="ruby-value">:force</span> <span class="ruby-operator">=></span> <span class="ruby-ivar">@force</span>,
<span class="ruby-value">:format_executable</span> <span class="ruby-operator">=></span> <span class="ruby-ivar">@format_executable</span>,
<span class="ruby-value">:ignore_dependencies</span> <span class="ruby-operator">=></span> <span class="ruby-ivar">@ignore_dependencies</span>,
<span class="ruby-value">:prerelease</span> <span class="ruby-operator">=></span> <span class="ruby-ivar">@prerelease</span>,
<span class="ruby-value">:security_policy</span> <span class="ruby-operator">=></span> <span class="ruby-ivar">@security_policy</span>,
<span class="ruby-value">:user_install</span> <span class="ruby-operator">=></span> <span class="ruby-ivar">@user_install</span>,
<span class="ruby-value">:wrappers</span> <span class="ruby-operator">=></span> <span class="ruby-ivar">@wrappers</span>,
<span class="ruby-value">:build_root</span> <span class="ruby-operator">=></span> <span class="ruby-ivar">@build_root</span>,
<span class="ruby-value">:install_as_default</span> <span class="ruby-operator">=></span> <span class="ruby-ivar">@install_as_default</span>,
<span class="ruby-value">:dir_mode</span> <span class="ruby-operator">=></span> <span class="ruby-ivar">@dir_mode</span>,
<span class="ruby-value">:data_mode</span> <span class="ruby-operator">=></span> <span class="ruby-ivar">@data_mode</span>,
<span class="ruby-value">:prog_mode</span> <span class="ruby-operator">=></span> <span class="ruby-ivar">@prog_mode</span>,
}
<span class="ruby-identifier">options</span>[<span class="ruby-value">:install_dir</span>] = <span class="ruby-ivar">@install_dir</span> <span class="ruby-keyword">if</span> <span class="ruby-ivar">@only_install_dir</span>
<span class="ruby-identifier">request_set</span>.<span class="ruby-identifier">install</span> <span class="ruby-identifier">options</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">_</span>, <span class="ruby-identifier">installer</span><span class="ruby-operator">|</span>
<span class="ruby-ivar">@installed_gems</span> <span class="ruby-operator"><<</span> <span class="ruby-identifier">installer</span>.<span class="ruby-identifier">spec</span> <span class="ruby-keyword">if</span> <span class="ruby-identifier">installer</span>
<span class="ruby-keyword">end</span>
<span class="ruby-ivar">@installed_gems</span>.<span class="ruby-identifier">sort!</span>
<span class="ruby-comment"># Since this is currently only called for docs, we can be lazy and just say</span>
<span class="ruby-comment"># it's documentation. Ideally the hook adder could decide whether to be in</span>
<span class="ruby-comment"># the background or not, and what to call it.</span>
<span class="ruby-identifier">in_background</span> <span class="ruby-string">"Installing documentation"</span> <span class="ruby-keyword">do</span>
<span class="ruby-constant">Gem</span>.<span class="ruby-identifier">done_installing_hooks</span>.<span class="ruby-identifier">each</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">hook</span><span class="ruby-operator">|</span>
<span class="ruby-identifier">hook</span>.<span class="ruby-identifier">call</span> <span class="ruby-keyword">self</span>, <span class="ruby-ivar">@installed_gems</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span> <span class="ruby-keyword">unless</span> <span class="ruby-constant">Gem</span>.<span class="ruby-identifier">done_installing_hooks</span>.<span class="ruby-identifier">empty?</span>
<span class="ruby-ivar">@installed_gems</span>
<span class="ruby-keyword">end</span></pre>
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