213 lines
5.0 KiB
Markdown
213 lines
5.0 KiB
Markdown
---
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title: npm-query
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section: 1
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description: Dependency selector query
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---
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### Synopsis
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```bash
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npm query <selector>
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```
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### Description
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The `npm query` command allows for usage of css selectors in order to retrieve
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an array of dependency objects.
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### Piping npm query to other commands
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```bash
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# 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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```
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### Extended Use Cases & Queries
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```stylus
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// 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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```
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### Example Response Output
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- 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
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```json
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[
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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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```
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### Configuration
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#### `global`
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* Default: false
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* Type: Boolean
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Operates in "global" mode, so that packages are installed into the `prefix`
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folder instead of the current working directory. See
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[folders](/configuring-npm/folders) for more on the differences in behavior.
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* packages are installed into the `{prefix}/lib/node_modules` folder, instead
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of the current working directory.
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* bin files are linked to `{prefix}/bin`
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* man pages are linked to `{prefix}/share/man`
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#### `workspace`
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* Default:
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* Type: String (can be set multiple times)
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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.
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Valid values for the `workspace` config are either:
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* Workspace names
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* Path to a workspace directory
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* Path to a parent workspace directory (will result in selecting all
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workspaces within that folder)
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When set for the `npm init` 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.
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This value is not exported to the environment for child processes.
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#### `workspaces`
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* Default: null
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* Type: null or Boolean
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Set to true to run the command in the context of **all** configured
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workspaces.
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Explicitly setting this to false will cause commands like `install` to
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ignore workspaces altogether. When not set explicitly:
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- Commands that operate on the `node_modules` tree (install, update, etc.)
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will link workspaces into the `node_modules` folder. - Commands that do
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other things (test, exec, publish, etc.) will operate on the root project,
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_unless_ one or more workspaces are specified in the `workspace` config.
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This value is not exported to the environment for child processes.
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#### `include-workspace-root`
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* Default: false
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* Type: Boolean
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Include the workspace root when workspaces are enabled for a command.
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When false, specifying individual workspaces via the `workspace` config, or
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all workspaces via the `workspaces` flag, will cause npm to operate only on
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the specified workspaces, and not on the root project.
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This value is not exported to the environment for child processes.
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## See Also
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* [dependency selectors](/using-npm/dependency-selectors)
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