HDDS-15378. Add component labels for PRs based on changed files

.github/labeler.yml

@@ -0,0 +1,95 @@
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Configuration for the component-labeler job in label-pr.yml.
+# Labels listed here are automation-owned: they are added and removed
+# based on the files changed in the pull request (sync-labels).
+
+scm:
+  - changed-files:
+      - any-glob-to-any-file:
+          - 'hadoop-hdds/server-scm/**'
+
+om:
+  - changed-files:
+      - any-glob-to-any-file:
+          - 'hadoop-ozone/ozone-manager/**'
+          - 'hadoop-ozone/interface-storage/**'
+
+datanode:
+  - changed-files:
+      - any-glob-to-any-file:
+          - 'hadoop-hdds/container-service/**'
+          - 'hadoop-ozone/datanode/**'
+
+recon:
+  - changed-files:
+      - any-glob-to-any-file:
+          - 'hadoop-ozone/recon/**'
+          - 'hadoop-ozone/recon-codegen/**'
+          - 'hadoop-ozone/integration-test-recon/**'
+
+s3:
+  - changed-files:
+      - any-glob-to-any-file:
+          - 'hadoop-ozone/s3gateway/**'
+          - 'hadoop-ozone/s3-secret-store/**'
+          - 'hadoop-ozone/integration-test-s3/**'
+
+client:
+  - changed-files:
+      - any-glob-to-any-file:
+          - 'hadoop-hdds/client/**'
+          - 'hadoop-ozone/client/**'
+
+ofs:
+  - changed-files:
+      - any-glob-to-any-file:
+          - 'hadoop-ozone/ozonefs*/**'
+
+EC:
+  - changed-files:
+      - any-glob-to-any-file:
+          - 'hadoop-hdds/erasurecode/**'
+
+command-line:
+  - changed-files:
+      - any-glob-to-any-file:
+          - 'hadoop-hdds/cli-common/**'
+          - 'hadoop-ozone/cli-*/**'
+
+tools:
+  - changed-files:
+      - any-glob-to-any-file:
+          - 'hadoop-ozone/tools/**'
+
+documentation:
+  - changed-files:
+      - any-glob-to-any-file:
+          - 'hadoop-hdds/docs/**'
+          - '**/*.md'
+
+UI:
+  - changed-files:
+      - any-glob-to-any-file:
+          - 'hadoop-ozone/recon/src/main/resources/webapps/recon/**'
+
+CI:
+  - changed-files:
+      - any-glob-to-any-file:
+          - '.github/**'
+          - 'dev-support/ci/**'
+          - 'hadoop-hdds/dev-support/**'
+          - 'hadoop-ozone/dev-support/checks/**'

.github/workflows/label-pr.yml

@@ -13,7 +13,9 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-# This workflow applies labels for PRs targeted at feature branches.
+# This workflow applies labels for PRs: branch labels for PRs targeted at
+# feature branches, and component labels based on the files changed
+# (rules in .github/labeler.yml).
 
 name: label-pull-requests
 
@@ -51,3 +53,31 @@ jobs:
           BRANCH: ${{ matrix.branch }}
           LABEL: ${{ matrix.label }}
           GH_TOKEN: ${{ github.token }}
+
+  component-labeler:
+    permissions:
+      contents: read
+      pull-requests: write
+    runs-on: ubuntu-slim
+    steps:
+      - name: "Checkout project" # provides .github/labeler.yml for the labeler action
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+        with:
+          persist-credentials: false
+          sparse-checkout: |
+            .github
+      - name: "List open PRs"
+        id: prs
+        run: |
+          {
+            echo 'numbers<<EOF'
+            gh pr list --repo "$GITHUB_REPOSITORY" --state open --limit 1000 --json number --jq '.[].number'
+            echo 'EOF'
+          } >> "$GITHUB_OUTPUT"
+        env:
+          GH_TOKEN: ${{ github.token }}
+      - name: "Apply component labels"
+        uses: actions/labeler@b8dd2d9be0f68b860e7dae5dae7d772984eacd6d # v6.2.0
+        with:
+          pr-number: ${{ steps.prs.outputs.numbers }}
+          sync-labels: true

.github/workflows/schedule-label-pr.yml

@@ -18,9 +18,10 @@
 name: scheduled-label-pull-requests
 
 on:
-  # every 5 minutes
+  # every 30 minutes; component labeling scans all open PRs, so keep the
+  # cadence moderate
   schedule:
-    - cron: '*/5 * * * *'
+    - cron: '*/30 * * * *'
 
 permissions:
   contents: read