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<details role="navigation" id="toc" open><summary>Table of contents</summary><ul>
<li><a href="#corepack">Corepack</a>
<ul>
<li><a href="#workflows">Workflows</a>
<ul>
<li><a href="#enabling-the-feature">Enabling the feature</a></li>
<li><a href="#configuring-a-package">Configuring a package</a></li>
<li><a href="#upgrading-the-global-versions">Upgrading the global versions</a></li>
<li><a href="#offline-workflow">Offline workflow</a></li>
</ul>
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<li><a href="#supported-package-managers">Supported package managers</a></li>
<li><a href="#common-questions">Common questions</a>
<ul>
<li><a href="#how-does-corepack-interact-with-npm">How does Corepack interact with npm?</a></li>
<li><a href="#running-npm-install--g-yarn-doesnt-work">Running <code>npm install -g yarn</code> doesn't work</a></li>
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<div role="main" id="apicontent">
<h2>Corepack<span><a class="mark" href="#corepack" id="corepack">#</a></span><a aria-hidden="true" class="legacy" id="corepack_corepack"></a></h2>
<div class="api_metadata">
<span>Added in: v16.9.0, v14.19.0</span>
</div>
<p></p><div class="api_stability api_stability_1"><a href="documentation.html#stability-index">Stability: 1</a> - Experimental</div><p></p>
<p><em><a href="https://github.com/nodejs/corepack">Corepack</a></em> is an experimental tool to help with
managing versions of your package managers. It exposes binary proxies for
each <a href="#supported-package-managers">supported package manager</a> that, when called, will identify whatever
package manager is configured for the current project, download it if needed,
and finally run it.</p>
<p>Despite Corepack being distributed with default installs of Node.js, the package
managers managed by Corepack are not part of the Node.js distribution and:</p>
<ul>
<li>Upon first use, Corepack downloads the latest version from the network.</li>
<li>Any required updates (related to security vulnerabilities or otherwise) are
out of scope of the Node.js project. If necessary end users must figure out
how to update on their own.</li>
</ul>
<p>This feature simplifies two core workflows:</p>
<ul>
<li>
<p>It eases new contributor onboarding, since they won't have to follow
system-specific installation processes anymore just to have the package
manager you want them to.</p>
</li>
<li>
<p>It allows you to ensure that everyone in your team will use exactly the
package manager version you intend them to, without them having to
manually synchronize it each time you need to make an update.</p>
</li>
</ul>
<section><h3>Workflows<span><a class="mark" href="#workflows" id="workflows">#</a></span><a aria-hidden="true" class="legacy" id="corepack_workflows"></a></h3>
<h4>Enabling the feature<span><a class="mark" href="#enabling-the-feature" id="enabling-the-feature">#</a></span><a aria-hidden="true" class="legacy" id="corepack_enabling_the_feature"></a></h4>
<p>Due to its experimental status, Corepack currently needs to be explicitly
enabled to have any effect. To do that, run <a href="https://github.com/nodejs/corepack#corepack-enable--name"><code>corepack enable</code></a>, which
will set up the symlinks in your environment next to the <code>node</code> binary
(and overwrite the existing symlinks if necessary).</p>
<p>From this point forward, any call to the <a href="#supported-package-managers">supported binaries</a> will work
without further setup. Should you experience a problem, run
<a href="https://github.com/nodejs/corepack#corepack-disable--name"><code>corepack disable</code></a> to remove the proxies from your system (and consider
opening an issue on the <a href="https://github.com/nodejs/corepack">Corepack repository</a> to let us know).</p>
<h4>Configuring a package<span><a class="mark" href="#configuring-a-package" id="configuring-a-package">#</a></span><a aria-hidden="true" class="legacy" id="corepack_configuring_a_package"></a></h4>
<p>The Corepack proxies will find the closest <a href="packages.html#nodejs-packagejson-field-definitions"><code>package.json</code></a> file in your
current directory hierarchy to extract its <a href="packages.html#packagemanager"><code>"packageManager"</code></a> property.</p>
<p>If the value corresponds to a <a href="#supported-package-managers">supported package manager</a>, Corepack will make
sure that all calls to the relevant binaries are run against the requested
version, downloading it on demand if needed, and aborting if it cannot be
successfully retrieved.</p>
<p>You can use <a href="https://github.com/nodejs/corepack#corepack-use-nameversion"><code>corepack use</code></a> to ask Corepack to update your local
<code>package.json</code> to use the package manager of your choice:</p>
<pre><code class="language-bash">corepack use pnpm@7.x <span class="hljs-comment"># sets the latest 7.x version in the package.json</span>
corepack use yarn@* <span class="hljs-comment"># sets the latest version in the package.json</span></code> <button class="copy-button">copy</button></pre>
<h4>Upgrading the global versions<span><a class="mark" href="#upgrading-the-global-versions" id="upgrading-the-global-versions">#</a></span><a aria-hidden="true" class="legacy" id="corepack_upgrading_the_global_versions"></a></h4>
<p>When running outside of an existing project (for example when running
<code>yarn init</code>), Corepack will by default use predefined versions roughly
corresponding to the latest stable releases from each tool. Those versions can
be overridden by running the <a href="https://github.com/nodejs/corepack#corepack-install--g--global---all--nameversion"><code>corepack install</code></a> command along with the
package manager version you wish to set:</p>
<pre><code class="language-bash">corepack install --global yarn@x.y.z</code> <button class="copy-button">copy</button></pre>
<p>Alternately, a tag or range may be used:</p>
<pre><code class="language-bash">corepack install --global pnpm@*
corepack install --global yarn@stable</code> <button class="copy-button">copy</button></pre>
<h4>Offline workflow<span><a class="mark" href="#offline-workflow" id="offline-workflow">#</a></span><a aria-hidden="true" class="legacy" id="corepack_offline_workflow"></a></h4>
<p>Many production environments don't have network access. Since Corepack
usually downloads the package manager releases straight from their registries,
it can conflict with such environments. To avoid that happening, call the
<a href="https://github.com/nodejs/corepack#corepack-pack---all--nameversion"><code>corepack pack</code></a> command while you still have network access (typically at
the same time you're preparing your deploy image). This will ensure that the
required package managers are available even without network access.</p>
<p>The <code>pack</code> command has <a href="https://github.com/nodejs/corepack#utility-commands">various flags</a>. Consult the detailed
<a href="https://github.com/nodejs/corepack#readme">Corepack documentation</a> for more information.</p>
</section><section><h3>Supported package managers<span><a class="mark" href="#supported-package-managers" id="supported-package-managers">#</a></span><a aria-hidden="true" class="legacy" id="corepack_supported_package_managers"></a></h3>
<p>The following binaries are provided through Corepack:</p>
<table><thead><tr><th>Package manager</th><th>Binary names</th></tr></thead><tbody><tr><td><a href="https://yarnpkg.com">Yarn</a></td><td><code>yarn</code>, <code>yarnpkg</code></td></tr><tr><td><a href="https://pnpm.io">pnpm</a></td><td><code>pnpm</code>, <code>pnpx</code></td></tr></tbody></table>
</section><section><h3>Common questions<span><a class="mark" href="#common-questions" id="common-questions">#</a></span><a aria-hidden="true" class="legacy" id="corepack_common_questions"></a></h3>
<h4>How does Corepack interact with npm?<span><a class="mark" href="#how-does-corepack-interact-with-npm" id="how-does-corepack-interact-with-npm">#</a></span><a aria-hidden="true" class="legacy" id="corepack_how_does_corepack_interact_with_npm"></a></h4>
<p>While Corepack could support npm like any other package manager, its
shims aren't enabled by default. This has a few consequences:</p>
<ul>
<li>
<p>It's always possible to run a <code>npm</code> command within a project configured to
be used with another package manager, since Corepack cannot intercept it.</p>
</li>
<li>
<p>While <code>npm</code> is a valid option in the <a href="packages.html#packagemanager"><code>"packageManager"</code></a> property, the
lack of shim will cause the global npm to be used.</p>
</li>
</ul>
<h4>Running <code>npm install -g yarn</code> doesn't work<span><a class="mark" href="#running-npm-install--g-yarn-doesnt-work" id="running-npm-install--g-yarn-doesnt-work">#</a></span><a aria-hidden="true" class="legacy" id="corepack_running_npm_install_g_yarn_doesn_t_work"></a></h4>
<p>npm prevents accidentally overriding the Corepack binaries when doing a global
install. To avoid this problem, consider one of the following options:</p>
<ul>
<li>
<p>Don't run this command; Corepack will provide the package manager
binaries anyway and will ensure that the requested versions are always
available, so installing the package managers explicitly isn't needed.</p>
</li>
<li>
<p>Add the <code>--force</code> flag to <code>npm install</code>; this will tell npm that it's fine to
override binaries, but you'll erase the Corepack ones in the process. (Run
<a href="https://github.com/nodejs/corepack#corepack-enable--name"><code>corepack enable</code></a> to add them back.)</p>
</li>
</ul></section>
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