README.md

devtools

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The aim of devtools is to make package development easier by providing R functions that simplify and expedite common tasks. R Packages is a book based around this workflow.

Installation

# Install devtools from CRAN
install.packages("devtools")

# Or the development version from GitHub:
# install.packages("devtools")
devtools::install_github("r-lib/devtools")

Cheatsheet

Usage

All devtools functions accept a path as an argument, e.g. load_all("path/to/mypkg"). If you don't specify a path, devtools will look in the current working directory - this is recommended practice.

Frequent development tasks:

Building and installing:

Check and release:

Learning more

R package development can be intimidating, however there are now a number of valuable resources to help!

  1. R Packages is a book that gives a comprehensive treatment of all common parts of package development and uses devtools throughout.

    • The first edition is available at http://r-pkgs.had.co.nz, but note that it has grown somewhat out of sync with the current version of devtools.
    • A second edition is under development and is evolving to reflect the current state of devtools. It is available at https://r-pkgs.org.
    • The Whole Game and Package structure chapters make great places to start.
  2. RStudio community - package development is a great place to ask specific questions related to package development.

  3. rOpenSci packages has extensive documentation on best practices for R packages looking to be contributed to rOpenSci, but also very useful general recommendations for package authors.

  4. There are a number of fantastic blog posts on writing your first package, including

  5. Writing an R package from scratch - Hilary Parker
  6. How to develop good R packages - Maƫlle Salmon
  7. Making your first R package - Fong Chun Chan
  8. Writing an R package from scratch - Tomas Westlake

  9. Writing R Extensions is the exhaustive, canonical reference for writing R packages, maintained by the R core developers.

Conscious uncoupling

devtools started off as a lean-and-mean package to facilitate local package development, but over the years it accumulated more and more functionality. Currently devtools is undergoing a conscious uncoupling to split out functionality into smaller, more tightly focussed packages. This includes:

Generally, you should not need to worry about these different packages, because devtools installs them all automatically. You will need to care, however, if you're filing a bug because reporting it at the correct place will lead to a speedier resolution.

Code of conduct

Please note that the devtools project is released with a Contributor Code of Conduct. By contributing to this project, you agree to abide by its terms.



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devtools documentation built on July 6, 2019, 5:02 p.m.