Provide default to get_fields

[llrs-roche]

This patch was proposed by Pawel to fix issues like https://github.com/insightsengineering/teal/actions/runs/11794622576/job/32853793903?pr=1406 and https://github.com/insightsengineering/teal/actions/runs/11794595252/job/32852528908?pr=1357 where the message is:

Modify DESCRIPTION file (development)
  ℹ Loading metadata database
  ✔ Loading metadata database ... done
  
  ! Failed to resolve dependencies.
  Error:
  * local::teal/:
    * Can't install dependency teal.data (>= 0.6.0.9017) (>= 0.5.1.9009) (>= 0.5.0.9015) (>= 0.3.1.9004)
    * Can't install dependency teal.slice (>= 0.5.1.9009) (>= 0.5.0.9015) (>= 0.3.1.9004)
    * Can't install dependency teal.code (>= 0.5.0.9015) (>= 0.3.1.9004)
    * Can't install dependency teal.reporter (>= 0.3.1.9004)
  End of error
  Failed refs: teal.data, teal.slice, teal.code, and teal.reporter.
  Error in val %||% default : Field 'Config/Needs/DepsBranch' not found
  Calls: <Anonymous> -> idesc_get_field -> %||%
  Execution halted

Simple reproducible code:

desc2 <- desc::description$new(file = system.file("DESCRIPTION",
                                              package = "desc"))
desc2$get_field("whatever")
## Error in val %||% default : Field 'whatever' not found

I also added a default on line 165 not originally proposed but I think could avoid this problem in other circumstances.

Not tested (yet) as I'm editing directly from github.

[github-actions]

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[llrs-roche]

I have read the CLA Document and I hereby sign the CLA

[llrs-roche]

There is no script/bootstrap as indicated on the guidelines https://github.com/insightsengineering/.github/blob/b0a8ef47139d75c047a5b244911b5bf00491f7f8/CONTRIBUTING.md#submitting-a-pull-request

If there is an easy way to test let me know.

[llrs-roche]

Hi @pawelru is there anything else to do to fix this? This is blocking the two linked PR.

[llrs-roche]

This PR was tested on teal, on a branch that was previously failing before: after the checks work and the workflow continues.

It reports an error solving the dependency but later it solves the dependencies, as expected, and continues with all the steps:

Modify DESCRIPTION file (development)
  ℹ Loading metadata database
  ✔ Loading metadata database ... done
  ! Failed to resolve dependencies.
  Error:
  * local::teal/:
    * Can't install dependency teal.data (>= 0.6.0.9017) (>= 0.5.1.9009) (>= 0.5.0.9015) (>= 0.3.1.9004)
    * Can't install dependency teal.slice (>= 0.5.1.9009) (>= 0.5.0.9015) (>= 0.3.1.9004)
    * Can't install dependency teal.code (>= 0.5.0.9015) (>= 0.3.1.9004)
    * Can't install dependency teal.reporter (>= 0.3.1.9004)
  End of error
  Failed refs: teal.data, teal.slice, teal.code, and teal.reporter.
  ℹ Adding package teal.data (ref: "insightsengineering/teal.data") to the Config/Needs/DepsDev field.
  ℹ Adding package teal.slice (ref: "insightsengineering/teal.slice") to the Config/Needs/DepsDev field.
  ℹ Adding package teal.code (ref: "insightsengineering/teal.code") to the Config/Needs/DepsDev field.
  ℹ Adding package teal.reporter (ref: "insightsengineering/teal.reporter") to the Config/Needs/DepsDev field.
  ℹ Trying to resolve dependencies again.
  ---
  ✔ Dependencies resolved successfully.
Print added field

@cicdguy, can you please make a release for this once merged?

[pawelru]

Looks good 👍 Thank you!