The goal of this change is to provide an isolated view of the available
profiles when the user calls the include_controls or require_controls
APIs. Namely,
- A profile should only be able to reference profiles that are part of
its transitive dependency tree. That is, if the dependency tree for a
profile looks like the following:
A
|- B --> C
|
|- D --> E
Then profile B should only be able to see profile C and fail if it
tries to reference A, D, or E.
- The same profile should be include-able at different versions from
different parts of the tree without conflict. That is, if the
dependency tree for a profile looks like the following:
A
|- B --> C@1.0
|
|- D --> C@2.0
Then profile B should see the 1.0 version of C and profile D should
see the 2.0 profile C with respect to the included controls.
To achieve these goals we:
- Ensure that we construct ProfileContext objects with respect to the
correct dependencies in Inspec::DSL.
- Provide a method of accessing all transitively defined rules on a
ProfileContext without pushing all of the rules onto the same global
namespace.
This does not yet handle attributes or libraries.
Also: Log to STDERR by default
NB: This will result in absolute paths being rendered to lock files. We
think that is OK for now since we are going to build some UX around
path-based dependencies and lock files. Namely, we are going to tell
people it is a bad idea.
Signed-off-by: Steven Danna <steve@chef.io>
Resolved an issue checking ports on windows
The previous version wasn't really checking if a port was accessible as we were only validating if the ping succeeded. Using TcpTestSucceeded to determine if the connection worked or not.
The Molinillo library is a good library for systems that need a
constraint solver that will solve dependency problems requiring a single
version of each named dependency.
In our case, the eventual goal is to allow libraries to have conflicting
transitive dependencies at runtime. Isolation will be provided by
restricting all calls within a given profile to scope which can only see
that profile's dependencies.
To facilitate working on the isolation feature, I've replaced the
Molinillo-based resolver with a minimal resolver which will allow us to
load multiple versions of the same library.
Since we will likely want a good amount of logging around this feature
in the future, I've added a Inspec::Log singleton-style class, replacing
the previous Inpsec::Log which appeared unused in the code base.
Signed-off-by: Steven Danna <steve@chef.io>
