Problems with writeManifest for RODBC due to latest having R version 4 dependency

[hollywoof]

I'm encountering an issue with writing manifest files for RStudio Connect at present.

I think this is due to the latest RODBC requiring R version 4 - which means that the current version is unavailable in my current R version (3.6.3).

I think the writeManifest call is having problems due to the available.packages call on

rsconnect/R/dependencies.R

Line 83 in 40c162b

repo.packages <- available.packages(contriburl = contrib.url(repos, type = "source"), type = "source")

It causes a warning "Unable to find repository URL for package RODBC" and causes the manifest to output as:

    "RODBC": {
      "Source": "CRAN",
      "Repository": null,
      "GithubRepo": null,

which then causes the deployment to fail in RSConnect (via git deployment)

My workaround for this at present is to set options(available_packages_filters = character()) before calling writeManifest - but it feels like writeManifest should somehow handle this problem internally - maybe by setting the filters in the call to available.packages or maybe by searching in
the archives for each repo.

[hollywoof]

Apologies for the double commit - http timeout issue (dodgy broadband)

[hadley]

Looks like this was fixed in #432.