Merge pull request #30 from gelisam/gelisam/check-hackage-matrix

check for hackage matrix failures in CI

Author: gelisam

.github/workflows/check-hackage-matrix.yml

@@ -0,0 +1,33 @@
+name: Check Hackage Matrix
+
+on:
+  # Run once a month, to detect build failures reported on matrix.hackage.haskell.org
+  schedule:
+    - cron: '0 0 1 * *'
+
+  # To test this GitHub Action, uncomment this block and open a PR; then comment
+  # it out again before merging the PR.
+  #pull_request:
+  #  types: [opened, synchronize]
+
+jobs:
+  check-hackage-matrix:
+    name: Check Hackage Matrix
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Download Report
+      run: |
+        PACKAGE_NAME="typelevel-rewrite-rules"
+
+        echo "checking https://matrix.hackage.haskell.org/#/package/$PACKAGE_NAME/ for failures..."
+        REPORTS="$(curl https://matrix.hackage.haskell.org/api/v2/packages/$PACKAGE_NAME/reports)"
+        REPORT_ID="$(echo "$REPORTS" | tr -d '[]' | tr ',' '\n' | tail -n 1)"
+        REPORT="$(curl "https://matrix.hackage.haskell.org/api/v2/packages/$PACKAGE_NAME/reports/$REPORT_ID")"
+        if echo "$REPORT" | grep '"bfail"' > /dev/null; then
+          echo "Build failures are reported on https://matrix.hackage.haskell.org/#/package/$PACKAGE_NAME/" 1>&2 
+          false
+        else
+          echo "All good."
+          true
+        fi