Control status will be replaced by job-specific output at some point.
Task was not useful anymore with state machine, may reintroduce
something similar at a later point, but consider alternatives:
- opentracing.io
- embedding everything in ctx
- activity stack would work easily
- log entries via proxy logger.Logger object
- progress reporting should be in status reports of individial jobs
- make TCPOutlet fully asynchronous, dropping messages if connection is
not fast enough
- syslog is just fine for now, local anyways
- stdout same thing
refs #26
An instance of Task tracks a single thread of activity that is part of a Job.
While the docs already use this terminology of tasks being composed of jobs,
the code did not have an object to represent these semantics.
Now it does:
* A task t is initialized with a root activity, which is its name
* t can t.Enter() and t.Finish() an activity, building
a stack of activities
* t's code can get a logger t.Log() whose logTaskField is set to the
concatenated stack of activities
* t's code can update IO progress it made since leaving idle state
* t's code's log output vie t.Log() is captured since leaving idle
state
* FIXME: find a way to bound that buffer
refs #10
refs #48
Version is autodetected on build using git
If it cannot be detected with git, an override must be provided.
For tracability of distros, the distroy packagers should override as
well, which is why I added a README entry for package mainatiners.
refs #35
We lost the nice context-stack [jobname][taskname][...] at the beginning
of each log line when switching to logrus.
Define some field names that define these contexts.
Write a human-friendly formatter that presents these field names like
the solution we had before logrus.
Write some other formatters for logfmt and json output along the way.
Limit ourselves to stdout logging for now.
Done:
* implement autosnapper that asserts interval between snapshots
* implement pruner
* job pull: pulling + pruning
* job source: autosnapping + serving
TODO
* job source: pruning
* job local: everything
* fatal errors such as serve that cannot bind socket must be more
visible
* couldn't things that need a snapshotprefix just use a interface
Prefixer() instead? then we could have prefixsnapshotfilter and not
duplicate it every time...
* either go full context.Context or not at all...? just wait because
community climate around it isn't that great and we only need it for
cancellation? roll our own?
Don't use jobrun for daemon, just call JobDo() once, the job must
organize stuff itself.
Sacrifice all the oneshot commands, they will be reintroduced as
client-calls to the daemon.
