Ensure buffered records are indented properly by saving the indent level
at the time the record was generated as part of the record, and
preferring that over the current indent level inside LineFormatter.
Buffer early log records until a log file becomes available, flush
records to said file afterwards. This ensures that early log output,
which, among other things, contains plugin discovery logging, is not
lost. Buffer capacity is configurable via an environment variable.
Rather than relying on a custom Logger with a context to add events when
they are logged, have the runner register hooks for corresponding
signals that do that.
The issue with the previous approach is that the event ended up
being added too late -- after the current job was already cleared, so
all events were added at run level.
With the new approach, the event will be added when it is first logged,
while there is still a current job being set. There will be no
duplication for Exceptions being re-raised and handled at different
levels because log_error() will ensure that each Exception is logged
only once.
- Keep track of logged exceptions inside log_error itself.
- signal: log the exception, if there is one in the finally clause of
the signal wrapper; this will ensure that the error will be logged
closer to the command that originated.
- entrypoint: use log.log_error for top-level error logging, rather than
the entrypoint logger directly; this will ensure that errors are not
repeated unnecessarily.
- Log CTRL-C message at zeroth indent level to make it easier to see in
the non-verbose output where it occurred.
Now that we add an event when logging errors, we need to avoid passing an
exception object directly to the logger. Otherwise we end up adding the
unserializable Exception object to the events list, which causes an error when
trying to write the output.
Add ContextLogger wich extends logging.Logger's warning and error
methods to automatically add the message to the context's events (if a
context has been provided).
devlib's CGgroups module logs things at INFO level. The information it
logs is too detailed for what WA considers "INFO", and should be logged
at DEBUG level instead.
Changing the way target descriptions work from a static mapping to
something that is dynamically generated and is extensible via plugins.
Also moving core target implementation stuff under "framework".
Changing the way target descriptions work from a static mapping to
something that is dynamically generated and is extensible via plugins.
Also moving core target implementation stuff under "framework".
