Title: Minimal R Package Development Utilities
Version: 0.2.1
Description: Lightweight wrappers around 'R CMD INSTALL', 'R CMD check', 'R CMD build', 'win-builder' uploads, and 'CRAN' submission. Provides functions for installing, loading, checking, building, and submitting R packages with minimal dependencies (only 'curl' for uploads). Background on R package development is in Wickham and Bryan (2023, ISBN:9781098134945), "Writing R Extensions" https://cran.r-project.org/doc/manuals/R-exts.html, and the 'CRAN' Repository Policy https://cran.r-project.org/web/packages/policies.html.
License: GPL-3
URL: https://github.com/cornball-ai/tinypkgr
BugReports: https://github.com/cornball-ai/tinypkgr/issues
Encoding: UTF-8
Imports: curl
Suggests: tinyrox, tinytest
NeedsCompilation: no
Packaged: 2026-04-22 00:50:16 UTC; troy
Author: Troy Hernandez ORCID iD [aut, cre], cornball.ai [cph]
Maintainer: Troy Hernandez <troy@cornball.ai>
Repository: CRAN
Date/Publication: 2026-04-22 08:50:02 UTC

Build Package Tarball

Description

Builds a source package tarball suitable for CRAN submission.

Usage

build(path = ".", dest_dir = tools::R_user_dir("tinypkgr", "cache"))

Arguments

path

Path to package root directory.

dest_dir

Directory to place the tarball. Defaults to the per-package user cache dir ('tools::R_user_dir("tinypkgr", "cache")‘), which is CRAN’s recommended location for package-owned output and persists across sessions. Pass an explicit path to place the tarball somewhere else.

Value

Path to the built tarball (invisibly).

Examples

# Scaffold a throwaway package in tempdir() and build a source tarball.
pkg <- file.path(tempdir(), "buildpkg")
dir.create(file.path(pkg, "R"), recursive = TRUE, showWarnings = FALSE)
writeLines(c(
  "Package: buildpkg",
  "Title: Example",
  "Version: 0.0.1",
  "Authors@R: person('A', 'B', email = 'a@b.com', role = c('aut','cre'))",
  "Description: Example.",
  "License: GPL-3"
), file.path(pkg, "DESCRIPTION"))
writeLines("add <- function(x, y) x + y", file.path(pkg, "R", "add.R"))

out <- file.path(tempdir(), "tarballs")
dir.create(out, showWarnings = FALSE)
tarball <- build(pkg, dest_dir = out)
file.exists(tarball)

unlink(pkg, recursive = TRUE)
unlink(out, recursive = TRUE)

Check Package

Description

Runs R CMD build and R CMD check on the package.

Usage

check(path = ".", args = c("--as-cran", "--no-manual"),
      error_on = c("warning", "error", "note"))

Arguments

path

Path to package root directory.

args

Character vector of additional arguments to pass to R CMD check. Default includes "–as-cran" and "–no-manual".

error_on

Severity level that causes an error: "error", "warning", or "note". Default is "warning" (fails on errors or warnings).

Value

TRUE if check passes, FALSE otherwise (invisibly). Also throws an error if check fails at or above error_on level.

Examples

# Runs 'R CMD build' + 'R CMD check' (typically tens of seconds).
# Intermediate files go under tempdir(), so nothing is written to the
# caller's working directory. Wrapped in if(interactive()) so the
# example is shown to users but not executed during R CMD check.

if (interactive()) {
  check()
  check(error_on = "error")
  check(args = c("--as-cran", "--no-manual"))
}

Check Package on Windows via win-builder

Description

Uploads package to win-builder.r-project.org for testing on Windows. Results are emailed to the package maintainer.

Usage

check_win_devel(path = ".", r_version = c("devel", "release", "oldrelease"))

Arguments

path

Path to package root directory.

r_version

Which R version to test: "devel", "release", or "oldrelease". Default is "devel".

Value

TRUE if upload succeeded (invisibly).

Examples

# Uploads a tarball to the public 'win-builder' FTP server. Wrapped
# in if(interactive()) so CRAN's automated checks never touch the
# network.

if (interactive()) {
  check_win_devel()
  check_win_devel(r_version = "release")
}

Install Package

Description

Wrapper around R CMD INSTALL with quiet mode option.

Usage

install(path = ".", quiet = TRUE)

Arguments

path

Path to package root directory.

quiet

Logical. Suppress output except errors? Default TRUE.

Value

TRUE if successful, FALSE otherwise (invisibly).

Examples

# Calls 'R CMD INSTALL', which writes to the user's R library.
# Wrapped in if(interactive()) so CRAN's automated checks never
# mutate the library.

if (interactive()) {
  install()
  install(quiet = FALSE)
}

Load All Package Code

Description

Sources all R files in a package for interactive development, without requiring a full install.

Usage

load_all(path = ".", env = new.env(parent = globalenv()), quiet = TRUE)

Arguments

path

Path to package root directory.

env

Environment to source files into. Defaults to a fresh environment whose parent is the global environment.

quiet

Logical. Suppress file sourcing messages? Default TRUE.

Value

The environment into which files were sourced (invisibly). Does not modify the search path. If you want search-path behavior, call 'attach()' yourself: 

attach(tinypkgr::load_all(), name = "tinypkgr:mypkg")

See Also

kitten for scaffolding a new package.

Examples

# Scaffold a throwaway package in tempdir() and source its R/ files.
pkg <- file.path(tempdir(), "loadpkg")
dir.create(file.path(pkg, "R"), recursive = TRUE, showWarnings = FALSE)
writeLines(c(
  "Package: loadpkg",
  "Title: Example",
  "Version: 0.0.1",
  "Authors@R: person('A', 'B', email = 'a@b.com', role = c('aut','cre'))",
  "Description: Example.",
  "License: GPL-3"
), file.path(pkg, "DESCRIPTION"))
writeLines("add <- function(x, y) x + y", file.path(pkg, "R", "add.R"))

e <- load_all(pkg)
e$add(2, 3)

unlink(pkg, recursive = TRUE)

Get Package Maintainer

Description

Extracts maintainer name and email from DESCRIPTION.

Usage

maintainer(path = ".")

Arguments

path

Path to package root directory.

Value

A list with elements 'name' and 'email'.

Examples

# Scaffold a throwaway package in tempdir() and read its maintainer.
pkg <- file.path(tempdir(), "mxpkg")
dir.create(pkg, showWarnings = FALSE)
writeLines(c(
  "Package: mxpkg",
  "Title: Example",
  "Version: 0.0.1",
  "Authors@R: person('Jane', 'Doe', email = 'jane@example.com',",
  "                  role = c('aut','cre'))",
  "Description: Example.",
  "License: GPL-3"
), file.path(pkg, "DESCRIPTION"))

maintainer(pkg)

unlink(pkg, recursive = TRUE)

Reload an Installed Package

Description

Unloads a package if loaded, reinstalls it, and loads it again. Convenience function for the install-reload cycle during development.

Usage

reload(path = ".", document = FALSE, quiet = TRUE)

Arguments

path

Path to package root directory.

document

If TRUE and tinyrox is available, run tinyrox::document() before installing. Default FALSE.

quiet

Logical. Suppress install output? Default TRUE.

Value

TRUE if successful (invisibly).

Examples

# Calls install() under the hood, which writes to the user's R
# library. Wrapped in if(interactive()) so checks never mutate it.

if (interactive()) {
  reload()
  reload(document = TRUE)
}

Submit Package to CRAN

Description

Uploads package to CRAN for review. You will receive a confirmation email that must be clicked to complete the submission.

Usage

submit_cran(path = ".", comments = "cran-comments.md")

Arguments

path

Path to package root directory.

comments

Path to cran-comments.md file, or NULL to skip.

Value

TRUE if submission succeeded (invisibly).

Examples

# Uploads to CRAN and prompts interactively for confirmation.
# Wrapped in if(interactive()) so CRAN's automated checks never
# attempt the upload.

if (interactive()) {
  submit_cran()
}

Add a GitHub Actions CI Workflow

Description

Writes '.github/workflows/ci.yaml' using the r-ci template (Ubuntu and macOS, via 'eddelbuettel/github-actions/r-ci@master'). Adds '^\.github$' to '.Rbuildignore' if not already present.

Usage

use_github_action(path)

Arguments

path

Path to package root directory. Required; no default is provided because this function writes files under 'path', and CRAN Repository Policy forbids defaulting write paths to the user's home filespace (which includes 'getwd()').

Value

Path to the created YAML file (invisibly).

Examples

# Scaffold a throwaway package in tempdir() and add the workflow.
pkg <- file.path(tempdir(), "ghapkg_example")
dir.create(pkg, showWarnings = FALSE)
writeLines(c(
  "Package: ghapkg",
  "Title: Example",
  "Version: 0.0.1",
  "Authors@R: person('A', 'B', email = 'a@b.com', role = c('aut','cre'))",
  "Description: Example.",
  "License: GPL-3"
), file.path(pkg, "DESCRIPTION"))

yaml <- use_github_action(path = pkg)
file.exists(yaml)

unlink(pkg, recursive = TRUE)

Bump Package Version

Description

Increments the Version field in DESCRIPTION and prepends a new section header to NEWS.md (if present) so the two never drift apart.

Usage

use_version(which = c("patch", "minor", "major", "dev"), path)

Arguments

which

Which component to bump: "patch" (0.2.0 -> 0.2.1), "minor" (0.2.0 -> 0.3.0), "major" (0.2.0 -> 1.0.0), or "dev" (0.2.0 -> 0.2.0.1, or 0.2.0.1 -> 0.2.0.2).

path

Path to package root directory. Required; no default is provided because this function edits files in 'path', and CRAN Repository Policy forbids defaulting write paths to the user's home filespace (which includes 'getwd()').

Value

The new version string (invisibly).

Examples

# Scaffold a throwaway package in tempdir() and bump its version.
pkg <- file.path(tempdir(), "vxpkg")
dir.create(pkg, showWarnings = FALSE)
writeLines(c(
  "Package: vxpkg",
  "Title: Example",
  "Version: 0.1.0",
  "Authors@R: person('A', 'B', email = 'a@b.com', role = c('aut','cre'))",
  "Description: Example.",
  "License: GPL-3"
), file.path(pkg, "DESCRIPTION"))

use_version("patch", path = pkg)
read.dcf(file.path(pkg, "DESCRIPTION"))[1, "Version"]

unlink(pkg, recursive = TRUE)