usethis is a workflow package: it automates repetitive tasks that arise during project setup and development, both for R packages and non-package projects.
Install the released version of usethis from CRAN:
install.packages("usethis")
Or install the development version from GitHub with:
# install.packages("pak") pak::pak("r-lib/usethis")
Most use_*()
functions operate on the active project: literally, a directory on your computer. If youβve just used usethis to create a new package or project, that will be the active project. Otherwise, usethis verifies that current working directory is or is below a valid project directory and that becomes the active project. Use proj_get()
or proj_sitrep()
to manually query the project and read more in the docs.
A few usethis functions have no strong connections to projects and will expect you to provide a path.
usethis is quite chatty, explaining what itβs doing and assigning you tasks. β
indicates something usethis has done for you. β
indicates that youβll need to do some work yourself.
Below is a quick look at how usethis can help to set up a package. But remember, many usethis functions are also applicable to analytical projects that are not packages.
library(usethis) # Create a new package ------------------------------------------------- path <- file.path(tempdir(), "mypkg") create_package(path) #> β Creating '/tmp/RtmpPqIkgo/mypkg/' #> β Setting active project to '/private/tmp/RtmpPqIkgo/mypkg' #> β Creating 'R/' #> β Writing 'DESCRIPTION' #> Package: mypkg #> Title: What the Package Does (One Line, Title Case) #> Version: 0.0.0.9000 #> Authors@R (parsed): #> * First Last <first.last@example.com> [aut, cre] (YOUR-ORCID-ID) #> Description: What the package does (one paragraph). #> License: `use_mit_license()`, `use_gpl3_license()` or friends to pick a #> license #> Encoding: UTF-8 #> Roxygen: list(markdown = TRUE) #> RoxygenNote: 7.2.3 #> β Writing 'NAMESPACE' #> β Setting active project to '<no active project>' # only needed since this session isn't interactive proj_activate(path) #> β Setting active project to '/private/tmp/RtmpPqIkgo/mypkg' #> β Changing working directory to '/tmp/RtmpPqIkgo/mypkg/' # Modify the description ---------------------------------------------- use_mit_license("My Name") #> β Adding 'MIT + file LICENSE' to License #> β Writing 'LICENSE' #> β Writing 'LICENSE.md' #> β Adding '^LICENSE\\.md$' to '.Rbuildignore' use_package("ggplot2", "Suggests") #> β Adding 'ggplot2' to Suggests field in DESCRIPTION #> β’ Use `requireNamespace("ggplot2", quietly = TRUE)` to test if package is installed #> β’ Then directly refer to functions with `ggplot2::fun()` # Set up other files ------------------------------------------------- use_readme_md() #> β Writing 'README.md' #> β’ Update 'README.md' to include installation instructions. use_news_md() #> β Writing 'NEWS.md' use_test("my-test") #> β Adding 'testthat' to Suggests field in DESCRIPTION #> β Adding '3' to Config/testthat/edition #> β Creating 'tests/testthat/' #> β Writing 'tests/testthat.R' #> β Writing 'tests/testthat/test-my-test.R' #> β’ Edit 'tests/testthat/test-my-test.R' x <- 1 y <- 2 use_data(x, y) #> β Adding 'R' to Depends field in DESCRIPTION #> β Creating 'data/' #> β Setting LazyData to 'true' in 'DESCRIPTION' #> β Saving 'x', 'y' to 'data/x.rda', 'data/y.rda' #> β’ Document your data (see 'https://r-pkgs.org/data.html') # Use git ------------------------------------------------------------ use_git() #> β Initialising Git repo #> β Adding '.Rproj.user', '.Rhistory', '.Rdata', '.httr-oauth', '.DS_Store', '.quarto' to '.gitignore'
Please note that the usethis 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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