pkgtrap: Install WebR packages to a local filesystem directory

![](https://img.shields.io/npm/v/pkgtrap.png)
!license

pkgtrap
(GL\|NPM\|Docs)
is a small Node.js CLI application to make it easier to sync WebR WASM R
packages to a local filesystem for CLI or web apps.

See the WebR CLI Book for
details.

It is intended to be run as a CLI and is on NPM, so you can install it
via:

``bash $ npm install -g pkgtrap`

You can also install the latest development version from GitLab:

`bash $ npm install -g git+https://gitlab.com/hrbrmstr/pkgtrap`

`Usage`

`bash pkgtrap --help`

Usage: pkgtrap [options] [packages...]

Makes a local copy of a list of WebR WASM packages and their dependencies.

Options: -V, --version output the version number -o, --output-dir

  path to output directory where WebR WASM packages
                              will be installed (will be created if it does not
                              exist) (default: "./pkgs")
      -h, --help              display help for command

pkgtrapdefaults to using a local-to-current-working-directory./pkgs directory but you can specify an alternate one via -oor--output-dir.

Here’s an example run that loads up {fs} and {glue}

`bash pkgtrap fs glue`

Creating output directory /Users/hrbrmstr/projects/pkgtrap/pkgs Mounting output directory to WebR's Emscripten filesystem… Installing designated packages… Downloading webR package: fs

Downloading webR package: glue

Syncing packages to /Users/hrbrmstr/projects/pkgtrap/pkgs Done!

`bash tree -L 1 ./pkgs``

./pkgs
├── fs
└── glue

3 directories, 0 files