CI: Automatic PR labelling is back (#10201)

* Revert "Remove PR labeler bot (#8525)"

This reverts commit ce1af97.

* Remove redundant globs

There was some duplication here as `**` would capture `*` etc

* Update actions/labeler to v5

* Label all PRs as "needs triage"

* Try my best to update config to match current structure

* patch needs triage regex

* run pre-commit

* Update labeler.yml to match current project structure

* pr feedback

Author: VeckoTheGecko

Diff for: .github/labeler.yml

@@ -0,0 +1,117 @@
+Automation:
+  - changed-files:
+      - any-glob-to-any-file:
+          - .github/**
+
+CI:
+  - changed-files:
+      - any-glob-to-any-file:
+          - ci/**
+
+dependencies:
+  - changed-files:
+      - any-glob-to-any-file:
+          - ci/requirements/*
+
+topic-arrays:
+  - changed-files:
+      - any-glob-to-any-file:
+          - xarray/core/duck_array_ops.py
+
+topic-backends:
+  - changed-files:
+      - any-glob-to-any-file:
+          - xarray/backends/**
+
+topic-cftime:
+  - changed-files:
+      - any-glob-to-any-file:
+          - xarray/coding/*time*
+
+topic-CF conventions:
+  - changed-files:
+      - any-glob-to-any-file:
+          - xarray/conventions.py
+
+topic-dask:
+  - changed-files:
+      - any-glob-to-any-file:
+          - xarray/compat/dask*
+          - xarray/core/parallel.py
+
+topic-DataTree:
+  - changed-files:
+      - any-glob-to-any-file:
+          - xarray/core/datatree*
+
+topic-documentation:
+  - changed-files:
+      - any-glob-to-any-file:
+          - doc/*
+          - "!doc/whats-new.rst"
+          - doc/**/*
+
+topic-groupby:
+  - changed-files:
+      - any-glob-to-any-file:
+          - xarray/core/groupby.py
+
+topic-html-repr:
+  - changed-files:
+      - any-glob-to-any-file:
+          - xarray/core/formatting_html.py
+
+topic-hypothesis:
+  - changed-files:
+      - any-glob-to-any-file:
+          - properties/**
+          - xarray/testing/strategies.py
+
+topic-indexing:
+  - changed-files:
+      - any-glob-to-any-file:
+          - xarray/core/indexes.py
+          - xarray/core/indexing.py
+
+topic-NamedArray:
+  - changed-files:
+      - any-glob-to-any-file:
+          - xarray/namedarray/*
+
+topic-performance:
+  - changed-files:
+      - any-glob-to-any-file:
+          - asv_bench/benchmarks/**
+
+topic-plotting:
+  - changed-files:
+      - any-glob-to-any-file:
+          - xarray/plot/*
+          - xarray/plot/**/*
+
+topic-rolling:
+  - changed-files:
+      - any-glob-to-any-file:
+          - xarray/computation/rolling.py
+          - xarray/computation/rolling_exp.py
+
+topic-testing:
+  - changed-files:
+      - any-glob-to-any-file:
+          - conftest.py
+          - xarray/testing/*
+
+topic-typing:
+  - changed-files:
+      - any-glob-to-any-file:
+          - xarray/core/types.py
+
+topic-zarr:
+  - changed-files:
+      - any-glob-to-any-file:
+          - xarray/backends/zarr.py
+
+io:
+  - changed-files:
+      - any-glob-to-any-file:
+          - xarray/backends/**

Diff for: .github/workflows/benchmarks.yml

@@ -10,7 +10,7 @@ env:
 
 jobs:
   benchmark:
-    if: ${{ contains( github.event.pull_request.labels.*.name, 'run-benchmark') && github.event_name == 'pull_request' || github.event_name == 'workflow_dispatch' }}
+    if: ${{ contains( github.event.pull_request.labels.*.name, 'run-benchmark') && github.event_name == 'pull_request' || contains( github.event.pull_request.labels.*.name, 'topic-performance') && github.event_name == 'pull_request' || github.event_name == 'workflow_dispatch' }}
     name: Linux
     runs-on: ubuntu-20.04
     env:

Diff for: .github/workflows/label-prs.yml

@@ -0,0 +1,12 @@
+name: "PR Labeler"
+on:
+  - pull_request_target
+
+jobs:
+  label:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/labeler@v5
+        with:
+          repo-token: "${{ secrets.GITHUB_TOKEN }}"
+          sync-labels: false