Commit Graph

2 Commits

Author SHA1 Message Date
Ian Wienand
75817ef205 Use networkx for digraph
This switches the code to use networkx for the digraph implementation.

Note that the old implementation specifically isn't removed in this
change -- for review clarity.  It will be replaced by a base class
that defines things properly to the API described below.

Plugins return a node object with three functions

 get_name() : return the unique name of this node

 get_nodes() : return a list of nodes for insertion into the graph.
  Usually this is just "self".  Some special things like partitioning
  add extra nodes at this point, however.

 get_edges() : return a tuple of two lists; edges_from and edges_to
  As you would expect the first is a list of node names that points to
  us, and the second is a list of node names we point to.  Usually
  this is only populated as ([self.base],[]) -- i.e. our "base" node
  points to us.  Some plugins, such as mounting, create links both to
  and from themselves, however.

Plugins have been updated, some test cases added (error cases
specifically)

Change-Id: Ic5a61365ef0132476b11bdbf1dd96885e91c3cb6
2017-05-26 11:42:10 +10:00
Ian Wienand
7341542f2c Adding unit testing for configuration
Add a range of unit-testing for configuration parsing, graph
generation and mount-point generation.  Unfortunately there's some
global variable hacks, and some stubs, but it's a start.

Change-Id: I9e4f950c2c2ea656fc0c1a14594059fb4c62fa35
2017-05-26 09:44:19 +10:00