chg: [tests] search for errors in logs

.github/workflows/main.yml

@@ -279,9 +279,15 @@ jobs:
 
       - name: Logs
         if: ${{ always() }}
+        # update logs_test.sh when adding more logsources here
         run: |
               tail -n +1 `pwd`/app/tmp/logs/*
               tail -n +1 /var/log/apache2/*.log
 
               sudo -u $USER app/Console/cake Log export /tmp/logs.json.gz --without-changes
               zcat /tmp/logs.json.gz
+
+      - name: Errors in Logs
+        if: ${{ always() }}
+        run: |
+              ./logs_tests.sh

tests/logs_fail_regexes.txt

@@ -0,0 +1,5 @@
+# This file contains regexes applied to logs, one line per regex 
+# Whenever the regex matches, the Logs job will fail and report the error.
+class="cake-error"
+Error: [ParseError]
+Error: [PDOException]

tests/logs_tests.sh

@@ -0,0 +1,8 @@
+#!/usr/bin/env bash
+ERROR_MESSAGE="Errors found in logs !"
+# exit 0 of grep = match found, so we need to exit 1 on this use-case.
+grep -HE -f logs_fail_regexes.txt `pwd`/app/tmp/logs/* && echo $ERROR_MESSAGE && exit 1
+grep -HE -f logs_fail_regexes.txt /var/log/apache2/*.log && echo $ERROR_MESSAGE && exit 1
+zgrep -HE -f logs_fail_regexes.txt /tmp/logs.json.gz && echo $ERROR_MESSAGE && exit 1
+# exit cleanly because grep found nothing, and did exit 1.
+exit 0