added error messages for malformed and missing key in .harmony file to fix issue #168 (#170)

* added error messages for malformed and missing key in .harmony file

* documented .harmony error log changes in chagelog

* updated changelog

---------

Co-authored-by: Anthony Valen <[email protected]>

Author: avvalenx

CHANGELOG.md

@@ -4,9 +4,8 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 
 ## [Unreleased]
-### Fixed
 ### Added
-### Changed
+- Added error messages to inform user if .harmony file is formatted incorrectly or missing a key
 
 ## [1.15.2]
 ### Fixed

subscriber/podaac_access.py

@@ -744,6 +744,10 @@ def find_harmony_runs(collection, bbox, starttime, endtime, output_dir, granules
                     return x['jobid']
     except FileNotFoundError:
         logging.warning('No .harmony file in the data directory. (Is this the first run?)')
+    except ValueError:
+        logging.error('.harmony file malformed')
+    except KeyError as key:
+        logging.error(f'.harmony file is missing {key}')
     return None