ci: Fallback to the full clang-tidy scan if files can not be found

utils/tests/gitlab-ci-code-linting.yml

@@ -79,6 +79,12 @@ clang-tidy-diff:
       clang-tidy-diff-14.py -path cmake-cache/ -p1 -quiet
       1> $CLANG_TIDY_OUTPUT
       2> /dev/null
+    - if egrep -A 3 "file not found \[clang-diagnostic-error\]" $CLANG_TIDY_OUTPUT ; then
+      echo "Clang-tidy could not find the above files. Running a full clang-tidy check." ;
+      run-clang-tidy-14 -p cmake-cache/ -quiet
+      1> $CLANG_TIDY_OUTPUT
+      2> /dev/null ;
+      fi
     - (! egrep -A 3 "error:|warning:|note:" $CLANG_TIDY_OUTPUT)
     - echo "No clang-tidy errors found"