Add Github action that verify commit message prefix

If the PR is related to some role, it would verify if in the title or
commit message header there is prefix set.
For example, if change was done for roles/cifmw_helpers, it should
verify if the title or commit message header contains [cifmw_helpers].

Co-Authored-By: Szymon Datko <[email protected]>
Signed-off-by: Daniel Pawlik <[email protected]>

Author: danpawlik

.github/workflows/verify-pr-prefix.yml

@@ -0,0 +1,38 @@
+name: Check if commit message contains role prefix
+
+on:
+  pull_request:
+    types: [opened, synchronize, edited, reopened]
+
+jobs:
+  verify-prefix:
+    runs-on: ubuntu-latest
+    continue-on-error: true
+
+    permissions:
+      contents: write
+      pull-requests: write
+      repository-projects: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Run commit message check
+        id: prefixcheck
+        run: |
+          set +e
+          ./scripts/check-role-prefix.sh > result.log 2>&1
+          echo "exit_code=$?" >> $GITHUB_OUTPUT
+          cat result.log
+
+      - name: Comment PR
+#        if: steps.check.outputs.exit_code != '0'
+        uses: mshick/add-pr-comment@v2
+        with:
+          message: |
+            Hello world !
+          issue: ${{ github.event.pull_request.number }}
+          repo-token: ${{ secrets.GITHUB_TOKEN }}

roles/cifmw_helpers/tasks/include_dir.yml

@@ -1,7 +1,7 @@
 ---
 # This is a workaround for reading Ansible yaml files,
 # that instead of have clear values, it uses jinja2 variables,
-# so reading the file and parse as fact does not work.
+# so reading the file and parse as fact does not work
 
 - name: Check directory is available
   ansible.builtin.stat:

scripts/check-role-prefix.sh

@@ -0,0 +1,30 @@
+#!/bin/bash
+
+# Get the latest commit message file
+TMP_MSG_FILE=$(mktemp)
+git log -1 --pretty=format:"%s%n%n%b" >"$TMP_MSG_FILE"
+
+echo "Checking latest commit message:"
+cat "$TMP_MSG_FILE"
+
+if [ -n "$GITHUB_BASE_REF" ]; then
+    CHANGED_ROLES=$(git diff "origin/${GITHUB_BASE_REF}" --name-only || true)
+else
+    CHANGED_ROLES=$(git diff --cached --name-only || true)
+fi
+
+CHANGED_ROLES=$(echo "$CHANGED_ROLES" | grep '^roles/' | cut -d'/' -f2 | sort -u | xargs | sed 's/ /|/g')
+if [ -z "$CHANGED_ROLES" ]; then
+    echo "No roles modified - skipping check..."
+    exit 0
+fi
+
+echo -e "\n\nDetected changed roles: $CHANGED_ROLES"
+MSG=$(head -n 1 "$TMP_MSG_FILE")
+if ! grep -qE "^\[($CHANGED_ROLES)\]" <<<"$MSG"; then
+    echo -e "\nERROR: Commit message must start with one of: [$CHANGED_ROLES]\n"
+    echo "Example: [reproducer] fix task or [cifmw_helpers] improve code"
+    exit 1
+fi
+
+echo "Commit message prefix is valid."