Todd Gamblin 6af5dfbbc2 config: allow env.yaml to contain configuration in a single file ...

- add `SingleFileScope` to configuration, which allows us to pull config
  sections from a single file.

- update `env.yaml` and tests to ensure that the env.yaml schema works
  when pulling configurtion from the env file.

2018-11-09 00:31:24 -08:00

..

spack

config: allow env.yaml to contain configuration in a single file

2018-11-09 00:31:24 -08:00