CI: Automatic PR labelling is back

[VeckoTheGecko]

• ClosesPR labeler bot broken and possibly dead #8524

Automatic PR labelling was added in #6912, then removed in [#8524, #8525] due to an archived dependency.

This PR fixes#8524. It:

• restores automatic PR labelling in full
  • labelling all PRs as needs triage
  • labelling PRs as needed based on .github/labeler.yml
• updates config to latest (v5) version of labeler action
  • The old config looks to be based off something like v3 of the labeler action. According their old README, the migration looks to be just pre-pending changed-files: any-glob-to-any-file: to each glob.

Please validate the labeler.yml config is correct and matches current project structure, or modify as you otherwise see fit.

See open PR on my fork (VeckoTheGecko#3) for an example.

(ps, can someone update the body of GH10198 to point to point to GH9524 not GH8524? Kinda funny that a typo led to this PR 😂)

[VeckoTheGecko]

Here's a script for your convenience showing each glob and the files it matches. Just CTRL+F for "no matches"

frompathlibimportPathimportyamlCODEBASE=Path(".")
CONFIG_PATH=CODEBASE/".github/labeler.yml"CONFIG=yaml.safe_load(CONFIG_PATH.read_text())
delCONFIG["needs triage"]
defmain():
fortopic, label_objinCONFIG.items():
globs=label_obj[0]["changed-files"][0]["any-glob-to-any-file"]
print(f"## {topic}")
forglobinglobs:
print(f"- glob: {glob}")
matches=list(CODEBASE.glob(glob))
forminmatches:
print(f" - {m}")
iflen(matches) ==0:
print(" - no matches")
print("\n")
if__name__=="__main__":
main()

output

## Automation
- glob: .github/**
- .github
- .github/workflows
- .github/ISSUE_TEMPLATE
## CI
- glob: ci/**
- ci
- ci/requirements
## dependencies
- glob: ci/requirements/*
- ci/requirements/environment.yml
- ci/requirements/environment-windows.yml
- ci/requirements/min-all-deps.yml
- ci/requirements/environment-windows-3.14.yml
- ci/requirements/all-but-numba.yml
- ci/requirements/environment-3.14.yml
- ci/requirements/all-but-dask.yml
- ci/requirements/bare-minimum.yml
- ci/requirements/doc.yml
## topic-arrays
- glob: xarray/core/duck_array_ops.py
- xarray/core/duck_array_ops.py
## topic-backends
- glob: xarray/backends/**
- xarray/backends
- xarray/backends/__pycache__
## topic-cftime
- glob: xarray/coding/*time*
- xarray/coding/times.py
- xarray/coding/cftime_offsets.py
- xarray/coding/cftimeindex.py
## topic-CF conventions
- glob: xarray/conventions.py
- xarray/conventions.py
## topic-combine
- glob: xarray/core/combine.py
- no matches
## topic-dask
- glob: xarray/core/dask*
- no matches
- glob: xarray/core/parallel.py
- xarray/core/parallel.py
## topic-DataTree
- glob: xarray/core/datatree*
- xarray/core/datatree_mapping.py
- xarray/core/datatree_render.py
- xarray/core/datatree.py
- xarray/core/datatree_io.py
## topic-faq
- glob: doc/howdoi.rst
- doc/howdoi.rst
## topic-groupby
- glob: xarray/core/groupby.py
- xarray/core/groupby.py
## topic-html-repr
- glob: xarray/core/formatting_html.py
- xarray/core/formatting_html.py
## topic-hypothesis
- glob: xarray/properties/*
- no matches
- glob: xarray/testing/strategies/*
- no matches
## topic-indexing
- glob: xarray/core/indexes.py
- xarray/core/indexes.py
- glob: xarray/core/indexing.py
- xarray/core/indexing.py
## topic-NamedArray
- glob: xarray/namedarray/*
- xarray/namedarray/_typing.py
- xarray/namedarray/_aggregations.py
- xarray/namedarray/_array_api.py
- xarray/namedarray/__init__.py
- xarray/namedarray/core.py
- xarray/namedarray/dtypes.py
- xarray/namedarray/__pycache__
- xarray/namedarray/parallelcompat.py
- xarray/namedarray/utils.py
- xarray/namedarray/pycompat.py
- xarray/namedarray/daskmanager.py
## topic-performance
- glob: asv_bench/benchmarks/**
- asv_bench/benchmarks
## topic-plotting
- glob: xarray/plot/*
- xarray/plot/accessor.py
- xarray/plot/__init__.py
- xarray/plot/dataarray_plot.py
- xarray/plot/utils.py
- xarray/plot/facetgrid.py
- xarray/plot/dataset_plot.py
- glob: xarray/plot/**/*
- xarray/plot/accessor.py
- xarray/plot/__init__.py
- xarray/plot/dataarray_plot.py
- xarray/plot/utils.py
- xarray/plot/facetgrid.py
- xarray/plot/dataset_plot.py
## topic-rolling
- glob: xarray/core/rolling.py
- no matches
- glob: xarray/core/rolling_exp.py
- no matches
## topic-testing
- glob: conftest.py
- conftest.py
- glob: xarray/testing.py
- no matches
- glob: xarray/testing/*
- xarray/testing/strategies.py
- xarray/testing/__init__.py
- xarray/testing/__pycache__
- xarray/testing/assertions.py
## topic-typing
- glob: xarray/core/types.py
- xarray/core/types.py
## topic-zarr
- glob: xarray/backends/zarr.py
- xarray/backends/zarr.py
## io
- glob: xarray/backends/**
- xarray/backends
- xarray/backends/__pycache__

[VeckoTheGecko]

pinging @TomNicholas since you submitted the prior issues/PRs on this topic. Feel free to review if you have a moment :)

[max-sixty]

this looks good!

I would recommend we slim down the categories a bit — easy to add more if we need, harder to prune

I think the standard could be "would someone reasonable want to subscribe to one of the labels", for example I would like to immediately look at any issues with Rolling...

[max-sixty]

lgtm — any feedback from anyone before merging?

[TomNicholas]

This is great - I've missed this bot - thanks @VeckoTheGecko !