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Both cinder and glance are starting to share the same logic for there engine notification listener, so instead of having them copy around that code it will be much nicer if taskflow can just provide itself a more capable listener that both can share and use directly. This avoids users of taskflow having to understand more about the internals of taskflow and its associated state then they likely need to understand (which makes taskflow easier to use and less work to integrate). Relevant locations where this already exists: - https://github.com/openstack/cinder/blob/master/cinder/flow_utils.py - https://review.openstack.org/#/c/85211/ Change-Id: I98eeb180b31bd488ae0eadd730e1530d7bae1f1f
TaskFlow
A library to do [jobs, tasks, flows] in a highly available, easy to understand and declarative manner (and more!) to be used with OpenStack and other projects.
- More information can be found by referring to the developer documentation.
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Testing and requirements
Requirements
Because TaskFlow has many optional (pluggable) parts like persistence
backends and engines, we decided to split our requirements into two
parts: - things that are absolutely required by TaskFlow (you can't use
TaskFlow without them) are put into requirements-pyN.txt
(N being the Python major version number used to
install the package); - things that are required by some optional part
of TaskFlow (you can use TaskFlow without them) are put into
optional-requirements.txt; if you want to use the feature
in question, you should add that requirements to your project or
environment; - as usual, things that required only for running tests are
put into test-requirements.txt.
Tox.ini
Our tox.ini file describes several test environments
that allow to test TaskFlow with different python versions and sets of
requirements installed. Please refer to the tox documentation to
understand how to make these test environments work for you.
Developer documentation
We also have sphinx documentation in docs/source.
To build it, run:
$ python setup.py build_sphinx