Upkeep for diffviewer (2020)

[x] usethis::use_package_doc() Consider letting usethis manage your @importFrom directives here. usethis::use_import_from() is handy for this.
[x] usethis::use_testthat(3) and upgrade to 3e, testthat 3e vignette
[x] Align the names of R/ files and test/ files for workflow happiness. The docs for usethis::use_r() include a helpful script. usethis::rename_files() may be be useful.

[x] usethis::use_tidy_description()
[x] usethis::use_tidy_dependencies()
[x] usethis::use_tidy_github_actions() and update artisanal actions to use setup-r-dependencies
[x] Remove check environments section from cran-comments.md
[x] Bump required R version in DESCRIPTION to 3.6
[x] Use lifecycle instead of artisanal deprecation messages, as described in Communicate lifecycle changes in your functions
[x] Make sure RStudio appears in Authors@R of DESCRIPTION like so, if appropriate: person("RStudio", role = c("cph", "fnd"))

[x] usethis::use_tidy_coc()
[x] Handle and close any still-open master --> main issues
[x] Update README badges, instructions in r-lib/usethis#1594
[x] Update errors to rlang 1.0.0. Helpful guides: https://rlang.r-lib.org/reference/topic-error-call.html https://rlang.r-lib.org/reference/topic-error-chaining.html https://rlang.r-lib.org/reference/topic-condition-formatting.html
[x] Update pkgdown site using instructions at https://tidytemplate.tidyverse.org
[x] Ensure pkgdown development is mode: auto in pkgdown config
[ ] Re-publish released site; see How to update a released site
[x] Update lifecycle badges with more accessible SVGs: usethis::use_lifecycle()

Necessary:

[x] Update email addresses @rstudio.com -> @posit.co
[x] Update copyright holder in DESCRIPTION: person(given = "Posit Software, PBC", role = c("cph", "fnd"))
[x] Run devtools::document() to re-generate package-level help topic with DESCRIPTION changes
[x] Double check license file uses '[package] authors' as copyright holder. Run use_mit_license()
[x] Update logo (https://github.com/rstudio/hex-stickers); run use_tidy_logo()
[x] usethis::use_tidy_coc()
[x] usethis::use_tidy_github_actions()

Optional:

[x] Review 2022 checklist to see if you completed the pkgdown updates
[x] Prefer pak::pak("org/pkg") over devtools::install_github("org/pkg") in README
[x] Consider running use_tidy_dependencies() and/or replace compat files with use_standalone()
[x] use_standalone("r-lib/rlang", "types-check") instead of home grown argument checkers
[x] Add alt-text to pictures, plots, etc; see https://posit.co/blog/knitr-fig-alt/ for examples

^{Created on 2023-10-30 with usethis::use_tidy_upkeep_issue(), using usethis v2.2.2.9000}

r-lib / diffviewer