Adapt benchmarks asv_delegated.py for wntrblm/nox#1072

[trexfeathers]

The current script is breaking because it was written on the assumption that Nox would only place the environment directory in the specified parent. It now also places a .gitignore and a CACHEDIR.TAG file too, presumably to help with Nox's internals.

[scitools-ci]

Templating

This PR includes changes that may be worth sharing via templating. For each file listed below, please either:

• Action the suggestion via a pull request editing/adding the relevant file in the SciTools/.github templates/ directory. ¹
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Templated files

The following changed files are templated:

• benchmarks/asv_delegated.py, templated by SciTools/.github/templates/benchmarks/asv_delegated.py

Footnotes

1. Include this text in the PR body to avoid any notifications about applying the template changes back to the source repo!
   @scitools-templating: please no update notification on: iris ↩

I checked - we don't include this in the benchmark template. Makes sense given asv_delegated.py is specifically designed with the intention of being customised for each repository.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 90.12%. Comparing base (287706c) to head (371b355).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #7046   +/-   ##
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  Coverage   90.12%   90.12%           
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  Files          91       91           
  Lines       24951    24951           
  Branches     4683     4683           
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  Hits        22488    22488           
  Misses       1684     1684           
  Partials      779      779           

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[pp-mo]

👍

[pp-mo]

@trexfeathers we don't include this in the benchmark template

TBH though, there is a lot in common between iris + iris-esmf-regrid versions of 'asv_delegated.py`.
Why isn't templating a good way of addressing that ?

[trexfeathers]

@trexfeathers we don't include this in the benchmark template

TBH though, there is a lot in common between iris + iris-esmf-regrid versions of 'asv_delegated.py`. Why isn't templating a good way of addressing that ?

The template isn't there to just facilitate alignment between Iris and IER, it's also there to facilitate the addition of benchmarking to other repositories. I've made that as easy as I possibly can, but so far no-one has taken an interest.