Quarkus platform auto-updater (#1147)

* Quarkus platform auto-updater

Added periodict task that check Quarkus platform version and creates PR with update if needed.

Signed-off-by: Matej Vasek <mvasek@redhat.com>

* Apply suggestions from code review

Co-authored-by: Lance Ball <lball@redhat.com>

Co-authored-by: Lance Ball <lball@redhat.com>

.github/workflows/update-quarkus-platform.yaml

@@ -0,0 +1,23 @@
+name: Update Quarkus Platform in embedded templates
+
+permissions:
+  contents: write
+  pull-requests: write
+
+on:
+  schedule:
+    - cron: '*/15 * * * *'
+
+jobs:
+  update:
+    name: Update Quarkus Platform
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Install xmllint
+        run: sudo apt -y install libxml2-utils
+      - name: Create PR
+        env:
+          GITHUB_TOKEN: ${{ github.token }}
+        run: ./hack/update-quarkus-platform.sh
+

hack/update-quarkus-platform.sh

@@ -0,0 +1,55 @@
+#!/usr/bin/env bash
+
+# This script check whether Quarkus templates use current platform.
+# It's done by querying https://code.quarkus.io/api/platform.
+# If the platform is out of date this scripts create PR with an update.
+
+set -o errexit
+set -o nounset
+set -o pipefail
+
+LATEST_PLATFORM="$(curl -s "https://code.quarkus.io/api/platforms" | \
+  jq -r '.platforms[0].streams[0].releases[0].quarkusCoreVersion')"
+
+echo "Latest Quarkus platform is: $LATEST_PLATFORM"
+
+XPATH='//*[local-name()="quarkus.platform.version"]/text()'
+
+CE_TEMPLATE_PLATFORM="$(xmllint --xpath "$XPATH" templates/quarkus/cloudevents/pom.xml)"
+HTTP_TEMPLATE_PLATFORM="$(xmllint --xpath "$XPATH" templates/quarkus/cloudevents/pom.xml)"
+
+if [ "$CE_TEMPLATE_PLATFORM" == "$LATEST_PLATFORM" ] && \
+  [ "$HTTP_TEMPLATE_PLATFORM" == "$LATEST_PLATFORM" ]; then
+  echo "Everything is up-to-date!"
+  exit 0
+fi
+
+echo "Quarkus platform in templates is out-of-sync."
+
+PR_BRANCH="update-quarkus-platform-${LATEST_PLATFORM}"
+
+if git fetch origin "$PR_BRANCH" ; then
+  echo "The PR branch already exists!"
+  exit 0
+fi
+
+sed -i -E "s#<quarkus.platform.version>.+</quarkus.platform.version>#<quarkus.platform.version>${LATEST_PLATFORM}</quarkus.platform.version>#g" \
+  ./templates/quarkus/cloudevents/pom.xml
+sed -i -E "s#<quarkus.platform.version>.+</quarkus.platform.version>#<quarkus.platform.version>${LATEST_PLATFORM}</quarkus.platform.version>#g" \
+  ./templates/quarkus/http/pom.xml
+make zz_filesystem_generated.go
+
+git config --global user.email "automation@knative.team"
+git config --global user.name "Knative Automation"
+git checkout -b "$PR_BRANCH"
+git add ./templates/quarkus/cloudevents/pom.xml ./templates/quarkus/http/pom.xml zz_filesystem_generated.go
+git commit -m "chore: update Quarkus platform to $LATEST_PLATFORM"
+git push --set-upstream origin "$PR_BRANCH"
+
+curl -v \
+  -X POST \
+  -H "Accept: application/vnd.github+json" \
+  -H "Authorization: token ${GITHUB_TOKEN}" \
+  "https://api.github.com/repos/${GITHUB_REPOSITORY}/pulls" \
+  -d "{\"title\":\"chore: update Quarkus Platform to ${LATEST_PLATFORM}\",\"body\":\"chore: update Quarkus Platform to ${LATEST_PLATFORM}\",\"head\":\"${GITHUB_REPOSITORY_OWNER}:${PR_BRANCH}\",\"base\":\"master\"}"
+