chore(test.sh): skip aritfact setup if no current is specified

Some tests like style checks do not require artifacts to be present.

Signed-off-by: Egor Lazarchuk <yegorlz@amazon.co.uk>

Author: ShadowCurse

tools/test.sh

@@ -31,8 +31,14 @@ if [ -f $CGROUP/cgroup.controllers -a -e $CGROUP/cgroup.type ]; then
         > $CGROUP/cgroup.subtree_control
 fi
 
-say "Copy CI artifacts to /srv, so hardlinks work"
-cp -ruvfL $(cat build/current_artifacts) /srv/current_artifacts
+if [ -f build/current_artifacts ]; then
+  say "Copy CI artifacts to /srv, so hardlinks work"
+  cp -ruvfL $(cat build/current_artifacts) /srv/current_artifacts
+else
+  # The directory must exist for pytest to function
+  mkdir -p /srv/current_artifacts
+  say "Skipping setting up CI artifacts"
+fi
 
 cd tests
 export PYTEST_ADDOPTS="${PYTEST_ADDOPTS:-} --pdbcls=IPython.terminal.debugger:TerminalPdb"