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78 lines
5.6 KiB
<!doctype html>
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<title>npm-link</title>
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<link rel="stylesheet" type="text/css" href="../../static/style.css">
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<link rel="canonical" href="https://www.npmjs.org/doc/cli/npm-link.html">
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<script async=true src="../../static/toc.js"></script>
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<body>
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<h1><a href="../cli/npm-link.html">npm-link</a></h1> <p>Symlink a package folder</p>
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<h2 id="synopsis">SYNOPSIS</h2>
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<pre><code>npm link (in package dir)
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npm link [<@scope>/]<pkg>[@<version>]
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alias: npm ln
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</code></pre><h2 id="description">DESCRIPTION</h2>
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<p>Package linking is a two-step process.</p>
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<p>First, <code>npm link</code> in a package folder will create a symlink in the global folder
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<code>{prefix}/lib/node_modules/<package></code> that links to the package where the <code>npm
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link</code> command was executed. (see <code><a href="../misc/npm-config.html">npm-config(7)</a></code> for the value of <code>prefix</code>). It
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will also link any bins in the package to <code>{prefix}/bin/{name}</code>.</p>
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<p>Next, in some other location, <code>npm link package-name</code> will create a
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symbolic link from globally-installed <code>package-name</code> to <code>node_modules/</code>
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of the current folder.</p>
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<p>Note that <code>package-name</code> is taken from <code>package.json</code>,
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not from directory name.</p>
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<p>The package name can be optionally prefixed with a scope. See <code><a href="../misc/npm-scope.html">npm-scope(7)</a></code>.
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The scope must be preceded by an @-symbol and followed by a slash.</p>
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<p>When creating tarballs for <code>npm publish</code>, the linked packages are
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"snapshotted" to their current state by resolving the symbolic links.</p>
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<p>This is handy for installing your own stuff, so that you can work on it and
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test it iteratively without having to continually rebuild.</p>
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<p>For example:</p>
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<pre><code>cd ~/projects/node-redis # go into the package directory
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npm link # creates global link
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cd ~/projects/node-bloggy # go into some other package directory.
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npm link redis # link-install the package
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</code></pre><p>Now, any changes to ~/projects/node-redis will be reflected in
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~/projects/node-bloggy/node_modules/node-redis/. Note that the link should
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be to the package name, not the directory name for that package.</p>
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<p>You may also shortcut the two steps in one. For example, to do the
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above use-case in a shorter way:</p>
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<pre><code>cd ~/projects/node-bloggy # go into the dir of your main project
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npm link ../node-redis # link the dir of your dependency
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</code></pre><p>The second line is the equivalent of doing:</p>
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<pre><code>(cd ../node-redis; npm link)
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npm link node-redis
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</code></pre><p>That is, it first creates a global link, and then links the global
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installation target into your project's <code>node_modules</code> folder.</p>
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<p>If your linked package is scoped (see <code><a href="../misc/npm-scope.html">npm-scope(7)</a></code>) your link command must
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include that scope, e.g.</p>
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<pre><code>npm link @myorg/privatepackage
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</code></pre><h2 id="see-also">SEE ALSO</h2>
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<ul>
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<li><a href="../misc/npm-developers.html">npm-developers(7)</a></li>
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<li><a href="../files/package.json.html">package.json(5)</a></li>
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<li><a href="../cli/npm-install.html">npm-install(1)</a></li>
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<li><a href="../files/npm-folders.html">npm-folders(5)</a></li>
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<li><a href="../cli/npm-config.html">npm-config(1)</a></li>
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<li><a href="../misc/npm-config.html">npm-config(7)</a></li>
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<li><a href="../files/npmrc.html">npmrc(5)</a></li>
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</ul>
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</div>
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<table border=0 cellspacing=0 cellpadding=0 id=npmlogo>
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</table>
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<p id="footer">npm-link — npm@3.10.8</p>
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