README.md
In AntonioJBT/Rpacker: Quickly Setup An R Package Using a Devtools Workflow

Rpacker

Rpacker creates templates and wraps usethis and devtools to quickly setup an R package, write functions, tests and documentation.

Install from GitHub:

install.packages("devtools")
library(devtools)
install_github("AntonioJBT/Rpacker")

Quickly setup a skeleton directory with file templates for an R package:

library(Rpacker)
setwd('/a_reasonable/parent/directory/like/my_github_repos')

# Generate all the files and directories needed for an R package using the devtools workflow:
rpac_all_setup(pkg_name = 'packageTest',
               path = '.',
               first = 'Super',
               last = 'Duper',
               email = 'super@duper.com',
               pkgs = 'dummy_holder',
               github_user = 'SuperDuper'
               )

This will give you e.g.:

├── .Rbuildignore
├── .gitignore
├── .travis.yml
├── DESCRIPTION
├── LICENSE.md
├── NAMESPACE
├── R
│   └── testPackage-package.R
├── README.md
├── codecov.yml
├── cran-comments.md
├── testPackage.Rproj
├── tests
│   ├── testthat
│   └── testthat.R
└── vignettes
    ├── .gitignore
    └── introduction_testPackage.Rmd

Generate templates for each new function and test you add:

# Generate a file template for a function using roxygen2 for documentation:
rpac_function(function_name = 'rpac_test',
              pkg_name = 'testPackage',
              path = 'R',
              author = 'Super Duper',
              github_user = 'SuperDuper',
              level = 'short',
              open = TRUE # tries to open file
              )

# Generate a file template for code tests to run with testthat:
rpac_test_template(test_name = 'rpack_test_template',
                   pkg_name = 'packageTest',
                   path = 'tests/testthat/'
                   )

# Add some boilerplate code to the same file for additional functions to test:
rpac_add_test(test_name = 'rpack_test_template',
              function_name = 'function_to_test',
              path = 'tests/testthat',
              append = TRUE,
              open = TRUE
              )

See the devtools workflow, check the R packages book and the official R reference.