pnpm setup

This command is used by the standalone installation scripts of pnpm. For instance, in https://get.pnpm.io/install.sh.

Setup does the following actions:

• creates a home directory for the pnpm CLI
• adds the pnpm home directory to the PATH by updating the shell configuration file
• copies the pnpm executable to the pnpm home directory

If pnpm setup cannot tell which shell configuration file to update, for example in a container where SHELL is not set, it still installs pnpm. It then prints the PNPM_HOME and PATH lines to add to your shell configuration yourself.

On Windows, if the registry environment values cannot be read or written, pnpm setup still installs pnpm. It prints commands to set PNPM_HOME and PATH in the current PowerShell session. Add these commands to your PowerShell profile to use pnpm in future sessions without registry access.

Since v11.18.0, when running on GitHub Actions, pnpm setup also appends PNPM_HOME and the global bin directory to the GitHub Actions environment files (GITHUB_ENV and GITHUB_PATH), so later steps in the same job can run pnpm add --global and other global commands.