96e6d971a0
When a retry atom or a task atom changes state it is quite useful to know the prior state the atom was in; to make this easier pass that information along in the details about the state transition so that observers can inspect it if they desire to. This matches more closely with the flow notification which does include the prior state (under the details key 'old_state') so this also increases the uniformity of notifications in general. Change-Id: I7df1fcc60ba178198776ddaa2681caee5811c4ff
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.
- Free software: Apache license
- Documentation: http://docs.openstack.org/developer/taskflow
- Source: http://git.openstack.org/cgit/openstack/taskflow
- Bugs: http://bugs.launchpad.net/taskflow/
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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