This commit extracts the remaining UI logic from the local backend,
and removes access to the direct CLI output. This is replaced with an
instance of a `views.Operation` interface, which codifies the current
requirements for the local backend to interact with the user.
The exception to this at present is interactivity: approving a plan
still depends on the `UIIn` field for the backend. This is out of scope
for this commit and can be revisited separately, at which time the
`UIOut` field can also be removed.
Changes in support of this:
- Some instances of direct error output have been replaced with
diagnostics, most notably in the emergency state backup handler. This
requires reformatting the error messages to allow the diagnostic
renderer to line-wrap them;
- The "in-automation" logic has moved out of the backend and into the
view implementation;
- The plan, apply, refresh, and import commands instantiate a view and
set it on the `backend.Operation` struct, as these are the only code
paths which call the `local.Operation()` method that requires it;
- The show command requires the plan rendering code which is now in the
views package, so there is a stub implementation of a `views.Show`
interface there.
Other refactoring work in support of migrating these commands to the
common views code structure will come in follow-up PRs, at which point
we will be able to remove the UI instances from the unit tests for those
commands.
* Remove deprecation on undeclared variable
Remove deprecation and add docs specific to the behavior around
undeclared variable values
* Limit full warnings to 2 instances, then summary
This way, the third warning is a summary, rather than the fourth
warning being the summary
Sensitive values in provisioner configuration would cause errors in the
validate phase. We need to unmark these value before serializing the
config value for the provisioner plugin.
* providers.Interface: huge renamification
This commit renames a handful of functions in the providers.Interface to
match changes made in protocol v6. The following commit implements this
change across the rest of the codebase; I put this in a separate commit
for ease of reviewing and will squash these together when merging.
One noteworthy detail: protocol v6 removes the config from the
ValidateProviderConfigResponse, since it's never been used. I chose to
leave that in place in the interface until we deprecate support for
protocol v5 entirely.
Note that none of these changes impact current providers using protocol
v5; the protocol is unchanged. Only the translation layer between the
proto and terraform have changed.
* command/format: check for sensitive NestedTypes
Eventually, the diff formatter will need to be updated to properly
handle NestedTypes, but for now we can let the existing function deal
with them as regular cty.Object-type attributes.
To avoid printing sensitive nested attributes, we will treat any
attribute with at least one sensitive nested attribute as an entirely
sensitive attribute.
* bugfix for Object ImpliedType()
ImpliedType() was returning too early when the given object had optional
attributes, therefore skipping the incredibly important step of
accounting for the nesting mode when returning said type.
Add a test for a diagnostic with no steps to make sure it still gets
associated with the resource in the config. Follow up to #27710 using
@alisdair's suggested testing.
The PreApply hook was always being called with a nil generation
argument, instead of the deposed key of the resource (if present). This
commit passes the deposed key from the change to the PreApply hook, and
adds a context test to cover this.
Due to calling the Colorize function with the full string instead of the
format string, plan/apply logs which include resource instance keys or
IDs which happen to match color formatting would be rendered
incorrectly.
This commit fixes this by only colorizing the known-safe format string.
We also add full test coverage for the UI hook, although only one of the
hooks is tested for this color bugfix due to verbosity of the test.
We also add the bold coloring to the provisioner output prefix, which
seems to have been an oversight.
The call to TestConformance needs to be reversed, since we want to
verify that the actual value returned conforms to the planned type.
While the inverse (checking that the planned value conforms to the
applied type) works for everything terraform has been exposed to up
until now, this fails when the planned type has dynamic attributes which
are allowed to become concrete types.
Now that the view code is separated, we can increase test coverage in
unit tests. This commit moves some tests from the command package which
were testing only view code, and adds more new test cases.
The warning diag added when refreshing an empty state file was never
rendered, and instead a custom (and incorrect) warning was output to the
UI. This commit fixes the dropped diag and removes the custom warning.
The clistate package includes a Locker interface which provides a simple
way for the local backend to lock and unlock state, while providing
feedback to the user if there is a delay while waiting for the lock.
Prior to this commit, the backend was responsible for initializing the
Locker, passing through direct access to the cli.Ui instance.
This structure prevented commands from implementing different
implementations of the state locker UI. In this commit, we:
- Move the responsibility of creating the appropriate Locker to the
source of the Operation;
- Add the ability to set the context for a Locker via a WithContext
method;
- Replace the Locker's cli.Ui and Colorize members with a StateLocker
view;
- Implement views.StateLocker for human-readable UI;
- Update the Locker interface to return detailed diagnostics instead of
errors, reducing its direct interactions with UI;
- Add a Timeout() method on Locker to allow the remote backend to
continue to misuse the -lock-timeout flag to cancel pending runs.
When an Operation is created, the StateLocker field must now be
populated with an implementation of Locker. For situations where locking
is disabled, this can be a no-op locker.
This change has no significant effect on the operation of Terraform,
with the exception of slightly different formatting of errors when state
locking or unlocking fails.
Move the code which renders Terraform hook callbacks as UI into the
views package, backed by a views.View instead of a cli.Ui. Update test
setup accordingly.
To allow commands to control this hook, we add a hooks member on the
backend Operation struct. This supersedes the hooks in the Terraform
context, which is not directly controlled by the command logic.
This commit should not change how Terraform works, and is refactoring in
preparation for more changes which move UI code out of the backend.
Alisdair McDiarmid