Commit Graph

7 Commits

Author SHA1 Message Date
Sander van Harmelen af1a471a05 command/state: update and fix the state list command 2018-10-19 16:31:12 +02:00
Martin Atkins d48f3600fe states: In Module.testString, use incrementing ids for deposed
In our old world we always used 1-based indices into a slice of deposed
objects. The new models instead use a map keyed by pseudorandom strings,
so that deposed objects will have a consistent identity across multiple
operations.

However, having that pseudo-random string in our test comparison output
is not helpful, since such strings can never match hard-coded expectation
strings. Therefore for the purposes of generating this test comparison
output we'll revert back to using 1-based indexes.

This should avoid problems for tests that only create one deposed object
per instance, but those which create more than one will need to do some
more work since the _ordering_ of these objects in the output is still
pseudorandom as a result of it coming from a map rather than a slice.
2018-10-16 19:14:11 -07:00
Martin Atkins 83066cd57f states: Support non-string primitives in state string representation 2018-10-16 19:14:11 -07:00
Martin Atkins 5faf027ea7 states: In State.String, use colon suffix only after all module names 2018-10-16 19:14:11 -07:00
James Bardin 6f429cc81b make state output match legacy output 2018-10-16 19:14:11 -07:00
Martin Atkins a3403f2766 terraform: Ugly huge change to weave in new State and Plan types
Due to how often the state and plan types are referenced throughout
Terraform, there isn't a great way to switch them out gradually. As a
consequence, this huge commit gets us from the old world to a _compilable_
new world, but still has a large number of known test failures due to
key functionality being stubbed out.

The stubs here are for anything that interacts with providers, since we
now need to do the follow-up work to similarly replace the old
terraform.ResourceProvider interface with its replacement in the new
"providers" package. That work, along with work to fix the remaining
failing tests, will follow in subsequent commits.

The aim here was to replace all references to terraform.State and its
downstream types with states.State, terraform.Plan with plans.Plan,
state.State with statemgr.State, and switch to the new implementations of
the state and plan file formats. However, due to the number of times those
types are used, this also ended up affecting numerous other parts of core
such as terraform.Hook, the backend.Backend interface, and most of the CLI
commands.

Just as with 5861dbf3fc49b19587a31816eb06f511ab861bb4 before, I apologize
in advance to the person who inevitably just found this huge commit while
spelunking through the commit history.
2018-10-16 19:11:09 -07:00
Martin Atkins cf6892275a states: Port stringer implementation from terraform.State
Our existing core tests make extensive use of the string representation
of a state for comparison purposes, because they were written before we
began making use of helper packages like "cmp".

To avoid the need to rewrite all of those tests and potentially break
them, we will instead port that particular rendering as closely as
possible but mark it with a comment sternly warning not to use it for
anything new.

We don't want to use this moving forward for a number of reasons, but
most notably:

 - printing out whole before and after state representations makes it
   hard to find a subtle difference in outcome when a test fails, while
   "cmp" can provide us with a real diff.

 - this string serialization is constrained by the capabilities of
   Terraform prior to our new state models, and so it does not
   comprehensively represent all possibilities in the new world.

 - it will probably behave oddly/poorly when given states containing
   features that arrived after it was written, even though I made a
   best effort here to make it do something reasonable in situations
   I thought about.
2018-10-16 18:58:49 -07:00