Properly handle creation of TIAF historic workspace directory (#2006)

* Fix historic working dir creation

Signed-off-by: John <jonawals@amazon.com>

* Add new line at EOF

Signed-off-by: John <jonawals@amazon.com>

* Removing extra whitespace at end of file

Signed-off-by: lumberyard-employee-dm <56135373+lumberyard-employee-dm@users.noreply.github.com>

* Log global exception caught by TIAF driver

Signed-off-by: John <jonawals@amazon.com>

Co-authored-by: lumberyard-employee-dm <56135373+lumberyard-employee-dm@users.noreply.github.com>

scripts/build/TestImpactAnalysis/tiaf.py

@@ -93,7 +93,7 @@ class TestImpact:
                 self.__has_src_commit = True
 
     def __write_last_run_hash(self, last_run_hash):
-        os.mkdir(self.__historic_workspace)
+        os.makedirs(self.__historic_workspace, exist_ok=True)
         f = open(self.__last_commit_hash_path, "w")
         f.write(last_run_hash)
         f.close()

scripts/build/TestImpactAnalysis/tiaf_driver.py

@@ -60,6 +60,6 @@ if __name__ == "__main__":
         # Non-gating will be removed from this script and handled at the job level in SPEC-7413
         #sys.exit(return_code)
         sys.exit(0)
-    except:
+    except Exception as e:
         # Non-gating will be removed from this script and handled at the job level in SPEC-7413
-        sys.exit(0)
+        print(f"Exception caught by TIAF driver: {e}")