Foundation for new monitor type that will emit a JSON object for each
log message. The following classes are defined:
- LogLine: The top-level object that can be serialised into a single
object containing a message and associated metadata.
- Context: Contextual information for a log line message. Describes the
origin of the message and the current pipeline and stage.
Automatically deduplicates this information using a hash/ID: keeps a
history of IDs and omits the context when the context is not new.
- Progress: Information on the progress of the build. The object is
recursive: can contain a sub-progress for nested progress reporting
(pipelines > stages > ...).
Signed-off-by: Achilleas Koutsou <achilleas@koutsou.net>
512933ddd4