pnpm install

Aliases: i

pnpm install is used to install all dependencies for a project.

In a CI environment, installation fails if a lockfile is present but needs an update.

Inside a workspace, pnpm install installs all dependencies in all the projects. If you want to disable this behavior, set the recursive-install setting to false.

TL;DR

Command	Meaning
pnpm i --offline	Install offline from the store only
pnpm i --frozen-lockfile	pnpm-lock.yaml is not updated
pnpm i --lockfile-only	Only pnpm-lock.yaml is updated

Options

--force

Force reinstall dependencies: refetch packages modified in store, recreate a lockfile and/or modules directory created by a non-compatible version of pnpm. Install all optionalDependencies even they don't satisfy the current environment(cpu, os, arch).

--offline

• Default: false
• Type: Boolean

If true, pnpm will use only packages already available in the store. If a package won't be found locally, the installation will fail.

--prefer-offline

• Default: false
• Type: Boolean

If true, staleness checks for cached data will be bypassed, but missing data will be requested from the server. To force full offline mode, use --offline.

--prod, -P

pnpm will not install any package listed in devDependencies and will remove those insofar they were already installed, if the NODE_ENV environment variable is set to production. Use this flag to instruct pnpm to ignore NODE_ENV and take its production status from this flag instead.

--dev, -D

Only devDependencies are installed and dependencies are removed insofar they were already installed, regardless of the NODE_ENV.

--no-optional

optionalDependencies are not installed.

--lockfile-only

• Default: false
• Type: Boolean

When used, only updates pnpm-lock.yaml and package.json. Nothing gets written to the node_modules directory.

--fix-lockfile

Fix broken lockfile entries automatically.

--frozen-lockfile

• Default:
  • For non-CI: false
  • For CI: true, if a lockfile is present
• Type: Boolean

If true, pnpm doesn't generate a lockfile and fails to install if the lockfile is out of sync with the manifest / an update is needed or no lockfile is present.

This setting is true by default in CI environments. The following code is used to detect CI environments:

https://github.com/watson/ci-info/blob/44e98cebcdf4403f162195fbcf90b1f69fc6e047/index.js#L54-L61

exports.isCI = !!(
  env.CI || // Travis CI, CircleCI, Cirrus CI, GitLab CI, Appveyor, CodeShip, dsari
  env.CONTINUOUS_INTEGRATION || // Travis CI, Cirrus CI
  env.BUILD_NUMBER || // Jenkins, TeamCity
  env.RUN_ID || // TaskCluster, dsari
  exports.name ||
  false
)

--merge-git-branch-lockfiles

Merge all git branch lockfiles. Read more about git branch lockfiles.

--reporter=<name>

• Default:
  • For TTY stdout: default
  • For non-TTY stdout: append-only
• Type: default, append-only, ndjson, silent

Allows you to choose the reporter that will log debug info to the terminal about the installation progress.

• silent - no output is logged to the console, not even fatal errors
• default - the default reporter when the stdout is TTY
• append-only - the output is always appended to the end. No cursor manipulations are performed
• ndjson - the most verbose reporter. Prints all logs in ndjson format

If you want to change what type of information is printed, use the loglevel setting.

--use-store-server

• Default: false
• Type: Boolean

Starts a store server in the background. The store server will keep running after installation is done. To stop the store server, run pnpm server stop

--shamefully-hoist

• Default: false
• Type: Boolean

Creates a flat node_modules structure, similar to that of npm or yarn. WARNING: This is highly discouraged.

--ignore-scripts

• Default: false
• Type: Boolean

Do not execute any scripts defined in the project package.json and its dependencies.

--filter <package_selector>

Read more about filtering.

--resolution-only

Added in: v8.3.0

Re-runs resolution: useful for printing out peer dependency issues.