Installing dependencies.
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npm command-line interface
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</div>
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<section id="content">
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<header class="title">
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<h1 id="npm-query">npm-query</h1>
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<span class="description">Dependency selector query</span>
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</header>
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<section id="table_of_contents">
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<h2 id="table-of-contents">Table of contents</h2>
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<div id="_table_of_contents"><ul><li><a href="#see-also">See Also</a></li></ul></div>
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</section>
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<div id="_content"><h3 id="synopsis">Synopsis</h3>
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<!-- raw HTML omitted -->
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<pre lang="bash"><code>npm query <selector>
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</code></pre>
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<h3 id="description">Description</h3>
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<p>The <code>npm query</code> command allows for usage of css selectors in order to retrieve
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an array of dependency objects.</p>
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<h3 id="piping-npm-query-to-other-commands">Piping npm query to other commands</h3>
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<pre lang="bash"><code># find all dependencies with postinstall scripts & uninstall them
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npm query ":attr(scripts, [postinstall])" | jq 'map(.name)|join("\n")' -r | xargs -I {} npm uninstall {}
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# find all git dependencies & explain who requires them
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npm query ":type(git)" | jq 'map(.name)' | xargs -I {} npm why {}
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</code></pre>
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<h3 id="extended-use-cases--queries">Extended Use Cases & Queries</h3>
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<pre lang="stylus"><code>// all deps
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*
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// all direct deps
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:root > *
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// direct production deps
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:root > .prod
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// direct development deps
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:root > .dev
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// any peer dep of a direct deps
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:root > * > .peer
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// any workspace dep
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.workspace
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// all workspaces that depend on another workspace
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.workspace > .workspace
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// all workspaces that have peer deps
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.workspace:has(.peer)
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// any dep named "lodash"
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// equivalent to [name="lodash"]
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#lodash
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// any deps named "lodash" & within semver range ^"1.2.3"
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#lodash@^1.2.3
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// equivalent to...
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[name="lodash"]:semver(^1.2.3)
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// get the hoisted node for a given semver range
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#lodash@^1.2.3:not(:deduped)
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// querying deps with a specific version
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#lodash@2.1.5
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// equivalent to...
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[name="lodash"][version="2.1.5"]
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// has any deps
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:has(*)
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// deps with no other deps (ie. "leaf" nodes)
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:empty
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// manually querying git dependencies
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[repository^=github:],
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[repository^=git:],
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[repository^=https://github.com],
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[repository^=http://github.com],
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[repository^=https://github.com],
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[repository^=+git:...]
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// querying for all git dependencies
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:type(git)
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// get production dependencies that aren't also dev deps
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.prod:not(.dev)
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// get dependencies with specific licenses
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[license=MIT], [license=ISC]
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// find all packages that have @ruyadorno as a contributor
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:attr(contributors, [email=ruyadorno@github.com])
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</code></pre>
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<h3 id="example-response-output">Example Response Output</h3>
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<ul>
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<li>an array of dependency objects is returned which can contain multiple copies of the same package which may or may not have been linked or deduped</li>
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</ul>
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<pre lang="json"><code>[
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{
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"name": "",
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"version": "",
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"description": "",
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"homepage": "",
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"bugs": {},
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"author": {},
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"license": {},
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"funding": {},
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"files": [],
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"main": "",
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"browser": "",
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"bin": {},
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"man": [],
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"directories": {},
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"repository": {},
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"scripts": {},
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"config": {},
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"dependencies": {},
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"devDependencies": {},
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"optionalDependencies": {},
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"bundledDependencies": {},
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"peerDependencies": {},
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"peerDependenciesMeta": {},
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"engines": {},
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"os": [],
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"cpu": [],
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"workspaces": {},
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"keywords": [],
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...
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},
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...
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</code></pre>
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<h3 id="configuration">Configuration</h3>
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<h4 id="global"><code>global</code></h4>
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<ul>
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<li>Default: false</li>
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<li>Type: Boolean</li>
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</ul>
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<p>Operates in "global" mode, so that packages are installed into the <code>prefix</code>
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folder instead of the current working directory. See
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<a href="../configuring-npm/folders.html">folders</a> for more on the differences in behavior.</p>
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<ul>
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<li>packages are installed into the <code>{prefix}/lib/node_modules</code> folder, instead
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of the current working directory.</li>
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<li>bin files are linked to <code>{prefix}/bin</code></li>
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<li>man pages are linked to <code>{prefix}/share/man</code></li>
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</ul>
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<h4 id="workspace"><code>workspace</code></h4>
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<ul>
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<li>Default:</li>
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<li>Type: String (can be set multiple times)</li>
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</ul>
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<p>Enable running a command in the context of the configured workspaces of the
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current project while filtering by running only the workspaces defined by
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this configuration option.</p>
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<p>Valid values for the <code>workspace</code> config are either:</p>
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<ul>
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<li>Workspace names</li>
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<li>Path to a workspace directory</li>
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<li>Path to a parent workspace directory (will result in selecting all
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workspaces within that folder)</li>
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</ul>
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<p>When set for the <code>npm init</code> command, this may be set to the folder of a
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workspace which does not yet exist, to create the folder and set it up as a
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brand new workspace within the project.</p>
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<p>This value is not exported to the environment for child processes.</p>
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<h4 id="workspaces"><code>workspaces</code></h4>
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<ul>
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<li>Default: null</li>
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<li>Type: null or Boolean</li>
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</ul>
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<p>Set to true to run the command in the context of <strong>all</strong> configured
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workspaces.</p>
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<p>Explicitly setting this to false will cause commands like <code>install</code> to
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ignore workspaces altogether. When not set explicitly:</p>
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<ul>
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<li>Commands that operate on the <code>node_modules</code> tree (install, update, etc.)
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will link workspaces into the <code>node_modules</code> folder. - Commands that do
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other things (test, exec, publish, etc.) will operate on the root project,
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<em>unless</em> one or more workspaces are specified in the <code>workspace</code> config.</li>
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</ul>
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<p>This value is not exported to the environment for child processes.</p>
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<h4 id="include-workspace-root"><code>include-workspace-root</code></h4>
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<ul>
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<li>Default: false</li>
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<li>Type: Boolean</li>
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</ul>
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<p>Include the workspace root when workspaces are enabled for a command.</p>
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<p>When false, specifying individual workspaces via the <code>workspace</code> config, or
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all workspaces via the <code>workspaces</code> flag, will cause npm to operate only on
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the specified workspaces, and not on the root project.</p>
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<p>This value is not exported to the environment for child processes.</p>
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<h2 id="see-also">See Also</h2>
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<ul>
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<li><a href="../using-npm/dependency-selector.html">dependency selector</a></li>
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</ul>
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