Make parsing Additional_repositories optional

[maksymiuks]

Hi,

I want to suggest an enhancement to how dependencies are identified in the dev_package_deps function. Currently, Additional_repositories are always added to repos:

remotes/R/deps.R

Line 130 in 6fe8836

repos <- c(repos, parse_additional_repositories(pkg))

which might be problematic when preparing CRAN releases. Always appending Additional_repositories to the repos, means that non-CRAN repos will be used for identifying Imports/Depends dependencies when testing the package on CI/CD. Such behaviour is not allowed when undergoing CRAN checks, as only Suggests packages are allowed to pull from Additional_repositories then.

Therefore I'd like to suggest adding a parameter which would make Additional_repositories conditional on a parameter.

I'll prepare a PR adding this parameter

[maksymiuks]

PR ready #783

[maksymiuks]

Closing as the PR was merged, thanks for the fast processing!