Remotes cleanup refactoring, code cleanup & bug fixing

[averissimo]

Overview of changes description

note: I've added some comments in the code below for additional context.

• desc_remotes_cleanup() refactoring just as we discussed
  • I couldn't remove Remotes while keeping functionality
• Adds tests
• Code reorganization
  • Moved solve_* functions to own file
  • Moved some functions around _(especially to desc_util.R, for description-based functions)_
  • local_description() moved to R/
  • Useful function to create better examples for developers
• when resolving packages: Replaces remote_github_ref to CRAN when resolving packages if that version (rule) exists on CRAN
  • For example: formatters (>= 0.5.1) isn't on CRAN, so it keeps the github_ref (instead of replacing with non-existent CRAN versions)
• Fix Bioconductor lack of published date bug (see comment below)
  • parse_ppm_url() fallback to lastest from PPM if snapshot date cannot be resolved
• Adds utility map_key_character to avoid repetitive vapply()

[github-actions[bot]]

Code Coverage Summary

Filename                          Stmts    Miss  Cover    Missing
------------------------------  -------  ------  -------  ------------------------
R/check.R                            37      37  0.00%    26-170
R/deps_installation_proposal.R      137     137  0.00%    58-267
R/desc_utils.R                       70      42  40.00%   15-32, 108, 117-167, 185
R/get_ref.R                         208     207  0.48%    13-419, 435-454
R/solve.R                            81      81  0.00%    9-165
R/utils.R                            70      55  21.43%   3-20, 36-111
TOTAL                               603     559  7.30%

Diff against main

Filename                          Stmts    Miss  Cover
------------------------------  -------  ------  --------
R/check.R                           -36     -36  +100.00%
R/deps_installation_proposal.R      +53     +53  +100.00%
R/desc_utils.R                      +70     +42  +40.00%
R/get_ref.R                        +101    +100  +0.48%
R/solve.R                           +81     +81  +100.00%
R/utils.R                           +70     +55  +21.43%
TOTAL                              +339    +295  +7.30%

Results for commit: 7e9b1449383808610804b0472870d25830bda6ca

Minimum allowed coverage is 80%

:recycle: This comment has been updated with latest results

[github-actions[bot]]

Unit Tests Summary

  1 files    4 suites   2s :stopwatch: 41 tests 13 :heavy_check_mark: 28 :zzz: 0 :x: 94 runs  65 :heavy_check_mark: 29 :zzz: 0 :x:

Results for commit ecbdc98b.

:recycle: This comment has been updated with latest results.

[pawelru]

This is awesome. Thank you! I have approved this. Let's merge it to the training branch and then the training to the main. I will let you decide when you want to pull the trigger.