Add backport reminder and reorganize the backporting actions.

.github/workflows/backport.reminder.yml

@@ -0,0 +1,42 @@
+name: Backport reminder
+
+on:
+  pull_request_target:
+    branches: [master]
+    types: [closed]
+  schedule:
+    - cron: '0 6 * * *'  # Every day at 06:00 UTC
+  workflow_dispatch:
+    inputs:
+      lookback_days:
+        description: 'How many days back to search merged PRs'
+        required: false
+        default: '7'
+      pending_label_age_days:
+        description: 'Minimum age in days before reminding'
+        required: false
+        default: '14'
+
+env:
+    BACKPORT_TOKEN: ${{ secrets.BACKPORT_TOKEN }}
+
+jobs:
+  reminder:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      pull-requests: read
+      issues: write
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Add Backport pending label (single PR)
+        if: github.event_name == 'pull_request_target'
+        run: |
+          python github_ci_tools/scripts/backport.py label --pr-mode
+          python github_ci_tools/scripts/backport.py remind --pr-mode --pending-reminder-age-days ${{ github.event.inputs.pending_label_age_days }}
+      - name: Add Backport pending label (bulk)
+        if: github.event_name != 'pull_request_target'
+        run: |
+          python github_ci_tools/scripts/backport.py label --lookback-days ${{ github.event.inputs.lookback_days }}
+          python github_ci_tools/scripts/backport.py remind --lookback-days ${{ github.event.inputs.lookback_days }} --pending-reminder-age-days ${{ github.event.inputs.pending_label_age_days }}

.github/workflows/ci.yml

@@ -61,12 +61,12 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - name: Parse repo and create filters.yml
-        run: python3 .github/scripts/track-filter.py
+        run: python3 github_ci_tools/scripts/track-filter.py
       - uses: dorny/paths-filter@de90cc6fb38fc0963ad72b210f1f284cd68cea36 #v3.0.2
         id: changes
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
-          filters: .github/filters.yml
+          filters: github_ci_tools/filters.yml
       - name: Collect changed tracks and calculate --track-filter argument
         id: track-filter
         run: |

.gitignore

@@ -99,6 +99,9 @@ target/
 #Pickles
 *.pk
 
+# direnv
+.envrc
+
 # pyenv
 .python-version