ADD TO: basic QA / add shellcheck

Author: jrfnl

.github/workflows/basic-qa.yml

@@ -77,3 +77,21 @@ jobs:
         # yamllint disable-line rule:line-length
         if: ${{ steps.spellcheck.outputs.success == false && steps.spellcheck.outputs.number_of_issues != 11  && steps.spellcheck.outputs.number_of_files_with_issues != 5}}
         run: exit 1
+
+  shellcheck:
+    name: 'ShellCheck'
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set up problem matcher
+        uses: lumaxis/shellcheck-problem-matchers@v2
+        with:
+          format: gcc
+
+      - name: Run ShellCheck
+        uses: ludeeus/[email protected]
+        with:
+          format: gcc

.shellcheckrc

@@ -0,0 +1,8 @@
+shell=bash
+color=always
+
+external-sources=false
+source-path=/build
+
+# Turn on all checks.
+enable=all