Move github actions dsl checks to a script

.github/workflows/ci.yaml

@@ -52,29 +52,11 @@ jobs:
           sudo chown -R ${USER} /var/lib/jenkins
           cd jenkins-scripts/dsl
           WRITE_JOB_LOG=1 java -jar tools/jobdsl.jar *.dsl
-      - name: Checks for abichecker jobs
+      - name: Checks for DSL Code
         if: steps.dsl_check.outputs.run_job == 'true'
         run: |
           cd jenkins-scripts/dsl
-          main=$(grep '<branch>main</branch>' *-abichecker-*.xml || true)
-          if [[ -n ${main} ]]; then
-            echo "Found a main branch in an abichecker job:"
-            echo "${main}"
-            echo "Main branches are not target of abichecking. Fix the code."
-            exit 1
-          fi
-          # Filter out the previous auto jobs
-          mkdir /tmp/abichecker_filtered_jobs
-          cp *-abichecker-*.xml /tmp/abichecker_filtered_jobs
-          cd /tmp/abichecker_filtered_jobs
-          rm *ubuntu_auto*.xml
-          repeated=$(grep '\<branch>' *-abichecker-*.xml | awk '{ print $2 }' | sort | uniq -d)
-          if [[ -n ${repeated} ]]; then
-            echo "Found a duplicate in an abichecker branch:"
-            echo "${repeated}"
-            echo "please exclude one of the versions in the yaml file to reduce the server workload"
-            exit 1
-          fi
+          ./dsl_checks.bash
       - name: Export XML generated configuration for diff
         if: steps.dsl_check.outputs.run_job == 'true'
         run: |

jenkins-scripts/dsl/dsl_checks.bash

@@ -0,0 +1,34 @@
+#!/bin/bash -e
+#
+if [[ -z $(ls -- *.xml) ]]; then
+  echo "No .xml file founds. Generate them using:"
+  echo "https://github.com/gazebo-tooling/release-tools/blob/master/jenkins-scripts/README.md#L11"
+fi
+
+not_null=$(grep 'null' -- *.xml || true)
+if [[ -n ${not_null} ]]; then
+  echo "Found a null value in a configuration file:"
+  echo "${not_null}"
+  echo "Probably a problem in the code"
+  exit 1
+fi
+
+main=$(grep '<branch>main</branch>' -- *-abichecker-*.xml || true)
+if [[ -n ${main} ]]; then
+  echo "Found a main branch in an abichecker job:"
+  echo "${main}"
+  echo "Main branches are not target of abichecking. Fix the code."
+  exit 1
+fi
+
+# Filter out the previous auto jobs
+filtered_dir=$(mktemp -d)
+cp -- *-abichecker-*.xml "${filtered_dir}"
+rm -f "${filtered_dir}"/*-ubuntu_auto*.xml
+repeated=$(grep '\<branch>' "${filtered_dir}"/*-abichecker-*.xml | awk '{ print $2 }' | sort | uniq -d)
+if [[ -n ${repeated} ]]; then
+  echo "Found a duplicate in an abichecker branch:"
+  echo "${repeated}"
+  echo "please exclude one of the versions in the yaml file to reduce the server workload"
+  exit 1
+fi