- lib_py/delegation/envfile.py (stdlib only) holds the one set of rules:
comments and blank lines skipped, key and value stripped, one matching
quote pair removed, no shell interpretation, keys must match
^[A-Za-z_][A-Za-z0-9_]*$ (bad or `=`-less lines warn with the line
number, never the value).
- mqtt_common._parse_env_file delegates to envfile.apply.
- The delegate-job wrapper runs envfile.py --shell by path and evals the
shlex-quoted exports; values never reach a command line. The environment
now wins over the file in both loaders.
- .mam.env.example: commented assignments no longer use $HOME, which the
parser keeps literally.
The shell parsed the env file in one place only (wrapper :38), not three.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>