R Observatory: Metrics for s7contract version 0.2.3

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

s7contract

0.2.3Package record

Behavioral Contracts and Generative Laws for 'S7'

0packages depend

1.8Kdownloads / year

89.4%test coverage

13/13flavors OK

Overview

About

Maintained by Sounkou Mahamane ToureCRAN page ↗GitHub ↗Website ↗Issues ↗

Contract helpers built with 'S7' for expressing runtime protocols around ordinary 'S7' dispatch. Structural interfaces describe small sets of required 'S7' generics, while explicit traits record registered implementations with optional default methods and associated metadata. Optional runtime checks can validate argument and return specifications in contract-scoped evaluation. Generative laws combine generators, deterministic shrinking, and one-result 'tinytest' expectations.

Changes in 0.2.3

Source builds exclude local test.arrows data files.

From NEWS.md in the release

Install

R (CRAN)pak (dev)Ubuntu (r2u)Fedora (COPR)openSUSE (OBS)

install.packages("s7contract", repos = "https://cloud.r-project.org/")

Installs the current CRAN release. Prebuilt binaries on Windows and macOS.

if (!requireNamespace("pak", quietly = TRUE))
  install.packages("pak", repos = "https://cloud.r-project.org/")
pak::pak("sounkou-bioinfo/s7contract")

Development version from sounkou-bioinfo/s7contract. Installs pak first if it is not already available.

Release

# enable cranapt (r2u) if it is not already set up, then install
grep -rqs r2u.stat.illinois.edu /etc/apt/sources.list /etc/apt/sources.list.d/ \
  || curl -fsSL https://raw.githubusercontent.com/eddelbuettel/r2u/master/inst/scripts/add_cranapt_noble.sh | sudo bash
sudo apt install -y r-cran-s7contract

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled. We list this channel from recorded r2u download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

bspm (used by r2u) also needs make: sudo apt install make

# enable the iucar/cran COPR if it is not already present, then install
ls /etc/yum.repos.d/*iucar*cran*.repo >/dev/null 2>&1 \
  || sudo dnf copr enable -y iucar/cran
sudo dnf install -y R-CRAN-s7contract

RPMs from the iucar/cran COPR, rebuilt from CRAN.

For install.packages() integration in R, also: sudo dnf install R-CoprManager

# add the autoCRAN OBS repo (Tumbleweed) if it is missing, then install
zypper -q lr | grep -qi autoCRAN \
  || sudo zypper addrepo https://download.opensuse.org/repositories/devel:/languages:/R:/autoCRAN/openSUSE_Tumbleweed/devel:languages:R:autoCRAN.repo
sudo zypper install -y R-s7contract

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed). We list this channel from recorded autoCRAN download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

Health

CRAN checks

13OK

CRAN check page ↗

Slowest check: 3.5 min · r-oldrel-windows-x86_64

Status changes

OK13 OK2026-08-04
NOTE12 OK, 1 NOTE2026-08-01
OK13 OK2026-06-09
ERROR12 OK, 1 ERROR2026-06-08
OK6 OK2026-05-08

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 0.2.3

README· In the repository, left out of the releaseVignettesYes · 7 · dynamicNEWSYes · 100% structured · mentions 0.2.3Citation fileNoWebsiteYes · pkgdown

Help pages: 17includes a package overview page
Examples that run: 100%11 run in a plain check
Exported functions with examples: 69%
Documented parameters: 80%
Return-value docs: 100%
Help pages citing references: 12%

Vignettes (7)

A Maybe Dictionary on S7 HTML
Behavioral Contracts on S7 HTML
Bioinformatics Containers as Interfaces HTML
Generative Laws with tinytest HTML
Laws for Calendar Intervals HTML
Reusable Laws for a Vector Protocol HTML
Testing Stateful S7 Protocols HTML

How these are measured

Downloads

1.8K

CRAN downloads in the past year

Rank #9,156 · ~5/day · ~151/mo

Releases R versions

Daily download trend is not available in this view yet.

51630 days

1.1K90 days

1.8K1 year

Compare downloads with other packages →

Also on185 r2u7 autocran

How downloads are counted

Repository

sounkou-bioinfo/s7contract ↗Account: sounkou-bioinfo

8Stars

0Forks

0Open issues

0Open PRs

3Releases

42Commits

1Commit identities

interfacesrs7

42 commits · Last activity 2026-09-14 · 0% stars, 30d · Default branch at 0.2.3.9000, ahead of CRAN 0.2.3 (checked 2026-10-25)

Responsiveness

How these are sampled

PRs merged (all time): 100%
Median days to close, 50 most recently updated closed issues: 2
Median days to close, 50 most recently updated closed PRs: 0

Stars over time

2026-05-01 · 12026-07-07 · 8

How these are measured

PracticesBeta

8 development-tooling and community-health practices detected across 4 families in the upstream repository

Checks run against github.com/sounkou-bioinfo/s7contract on 2026-10-25.

Continuous integration (2)

GitHub ActionsR CMD check workflow

The R CMD check workflow runs on Linux, macOS and Windows, and on R-devel

Docs source (4)

README.Rmdpkgdown

GitHub Pages site last deployed 2026-09-14 · The repository has a site deploy workflow

pkgdown site last built 2026-09-14

Reproducibility and dev environment (1)

Makefile

CRAN release process (1)

cran-comments.md

How this is detected·Detection ruleset v4 (2026-10-20)

Dependencies

Declared dependencies

4 external dependencies (excludes base and recommended)

Installing s7contract adds 1 package (1 with compiled code, 180 KB of source tarballs). Heaviest: S7 180 KB.

Depends (1)

R >= 4.3.0

Imports (2)

S7stats

LinkingTo (0)

none

Suggests (3)

knitr rmarkdown tinytest

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

How these are counted

Code & Tests

People & History

People (1)

Sounkou Mahamane Toure

Author, Maintainer since 0.1.0 (2026)

Releases (2)

Pick two releases to compare their code metrics.

0.2.3Latest
record
2026-09-09 · current release · diff ↗ ·
added 25 exports
assume, check_law, expect_law, format_check_result, gen_bind, gen_choice, gen_commands, gen_constant, gen_double, gen_element, gen_example, gen_integer, gen_map, gen_no_shrink, gen_product, gen_recursive, gen_resize, gen_sample, gen_sized, gen_subsequence, gen_vector, new_command, new_generator, new_law, new_state_law
0.1.0
record
2026-05-07
R
R 4.6.0 released · 2026-04-24

Package metadata

First published: 2026-05-07
Total releases: 2 / 1 yrs
License: GPL (>= 3) OSI
Minimum R: ≥ 4.3.0
Download size: 159 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("s7contract")

Format

Toure, S. M. (2026). s7contract: Behavioral Contracts and Generative Laws for 'S7' (Version 0.2.3) [Computer software]. https://doi.org/10.32614/CRAN.package.s7contract

This package has no citation file, so citation() returns this entry built from DESCRIPTION.

Cite the R Observatory

For a number measured here: a download total, a coverage figure, an archival date.

Format

APA

Balamuta, J. J. (2026). R Observatory: Metrics for s7contract version 0.2.3 [Data set]. HJJB, LLC. Data release v2026-10-26. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-26, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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