WSGI doesn't like sys.exit() being called, so avoid it. Two cases need to be taken into consideration:
1. No exception thrown by self.args.func()
The variable exit_status is zero, we can check that and _not_
call sys.exit()
2. Exception thrown by self.args.func()
In that case, the exception should be raised, to be caught by
WSGI / ASGI whatever to do what they want with it. The code
calling sys.exit() is never reached. Hence, we need to add
--backtrace to the invocation options.
cast.from_env() takes an environment variable name instead of the string as the first argument and does the obvious thing. It also takes a default and saves the conversion in case the environment variable doesn't exist.
<W> jw-client-devops-web.py [ 29] Exiting jw-client-devops-web.py Exception ignored in: <function App.__del__ at 0x7f3ddeb8f560> Traceback (most recent call last): File "/home/jan/local/src/jw.dev/proj/jw-client-devops-web/src/python/jw/devops/client/web/cmds/App.py", line 43, in __del__ File "/home/jan/local/src/jw.dev/proj/jw-python/tools/python/jwutils/log.py", line 167, in slog File "/home/jan/local/src/jw.dev/proj/jw-python/tools/python/jwutils/log.py", line 126, in get_caller_pos AttributeError: 'NoneType' object has no attribute '__name__'
add_argument() at the face of it looks much like ArgumentParser.add_argument(), but is a function, not a class method. It takes the ArgsContainer|ArgParser instance as first argument, then decides what type it is, and proceeds to use this knowledge to decide whether or not the argument to be added already has a definition.
Add functions log.(add|rm)_capture_stream(). The functions are meant to capture everything passed to syslog into the stream objects installed by it. Not sure about future semantics changes: add_capture_stream() takes a currently unused flags argument, and it suppresses everything else logged until the stream is removed again.
If module is present in the log flags string, the module is prepended to each log message. The length of the module prefix can be set via the new set_module_name_length() function.
StringTree.find(key, val) (and Config.find(), for that matter) returns a list of paths with sections containing children matching key / val pairs. One of them can be None, which acts as a wildcard.
There's an assertion in StringTree.py.__set(), assert self.content != str(content), which often triggers. Not sure what the idea behind the assertion was, disable it.
These are meant to be called from different pieces of code:
- add_child_row_location() is meant to be used where the parent is rendered, to display a link to adding another child
- add_child_row_location_rules() and add_child_row_location_rule() are meant to be invoked where processing is going to be done, i.e. likely code rendering child row content
refuse_mode_mask can be passed to the constructor and determines which permission bits need to be absent from config file modes if they smell like they contain secrets.
