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main_repo / deps / npm / html / doc / cli / npm-dedupe.html @ 5e865191
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<!doctype html>
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<html>
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<title>npm-dedupe</title> |
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<meta http-equiv="content-type" value="text/html;utf-8"> |
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<link rel="stylesheet" type="text/css" href="../../static/style.css"> |
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<body>
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<div id="wrapper"> |
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<h1><a href="../cli/npm-dedupe.html">npm-dedupe</a></h1> <p>Reduce duplication</p> |
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<h2 id="SYNOPSIS">SYNOPSIS</h2> |
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<pre><code>npm dedupe [package names...]</code></pre> |
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<h2 id="DESCRIPTION">DESCRIPTION</h2> |
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<p>Searches the local package tree and attempts to simplify the overall
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structure by moving dependencies further up the tree, where they can |
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be more effectively shared by multiple dependent packages.</p>
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<p>For example, consider this dependency graph:</p> |
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<pre><code>a |
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+-- b <-- depends on c@1.0.x
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| `-- c@1.0.3 |
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`-- d <-- depends on c@~1.0.9
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`-- c@1.0.10</code></pre> |
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<p>In this case, <code><a href="../cli/npm-dedupe.html">npm-dedupe(1)</a></code> will transform the tree to:</p> |
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<pre><code>a |
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+-- b |
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+-- d |
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`-- c@1.0.10</code></pre> |
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<p>Because of the hierarchical nature of node's module lookup, b and d |
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will both get their dependency met by the single c package at the root |
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level of the tree.</p>
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<p>If a suitable version exists at the target location in the tree
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already, then it will be left untouched, but the other duplicates will |
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be deleted.</p>
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<p>If no suitable version can be found, then a warning is printed, and
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nothing is done.</p>
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<p>If any arguments are supplied, then they are filters, and only the
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named packages will be touched.</p>
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<p>Note that this operation transforms the dependency tree, and may
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result in packages getting updated versions, perhaps from the npm |
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registry.</p>
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<p>This feature is experimental, and may change in future versions.</p> |
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<h2 id="SEE-ALSO">SEE ALSO</h2> |
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<ul><li><a href="../cli/npm-ls.html">npm-ls(1)</a></li><li><a href="../cli/npm-update.html">npm-update(1)</a></li><li><a href="../cli/npm-install.html">npm-install(1)</a></li></ul> |
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</div>
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<p id="footer">npm-dedupe — npm@1.3.4</p> |
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<script>
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