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Generate R helper scripts for use on Domino Data Lab

Project description

rgear - Generate R helper files

The aim of rgear is to provide simple tooling to create helper files for R based content.

The files it creates allow you to serve R based content (Shiny apps, plumber APIs or RMarkdown html outputs) from the command line.

Originally created for use with Domino Data Lab, rgear can be used wherever R is and therefore also makes a great complement to other projects such as (R4Pi)[].

Supported content types:

  • Shiny apps
  • Rmarkdown html output
  • Plumber APIs


rgear is written in Python, and can be installed directly from PyPI:

# python3 -m pip install rgear


rgear --help
usage: rgear [-h] [-f] [-p PORT] [-v] [--version]
             {shiny,plumber,rmarkdown} path

Generates helper scripts for starting R based content servers

positional arguments:
                        choose the application type you want to serve
  path                  path to the content to serve

optional arguments:
  -h, --help            show this help message and exit
  -f, --force           force overwrite if the output file(s) already exist
  -p PORT, --port PORT  override the default port setting. [default: 8888]
  -v, --verbose         enable verbose output
  --version             print the version and exit

For detailed help, please see

Using the above options, various files -- mostly -- will be written to the working directory with the required parameters already populated.

The file created by rgear can be used to start the specified content from the command line. This makes it an ideal complement to all command-line uses of R.

For example, to generate a script to serve a plumber API:

# rgear plumber plumber.R

Using with Domino Data Lab

Domino Data Lab can then use these files to serve your content as a DDL "(app)[]".

The "" files created by rgear have sensible defaults for Domino and allows users to generate the file(s) they need without too much effort.

Use rgear to generate the "" file you need for your specific content type and then configure Domino to use that file to serve your content.

Using with command line R (Including R4Pi)

Use rgear to generate startup scripts for your Shiny apps, plumber APIs or RMarkdown reports.

For example, if you have a Shiny app in an "app.R" file, run:

# rgear shiny app.R

Then you can run the app with:

# ./

Then visit the app in your browser using either http://localhost:8888 or http://:8888.

Use ctrl+c to stop the app from running.

You can run the "" script in the background with:

# nohup ./ &

You'll need to use ps and kill to stop an application started this way.


MIT License Copyright (c) 2023 Mark Sellors

See the LICENSE file for the full text of the license.

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