Although they are not serialized to the final stored state, all module
outputs must be saved in the state for evaluation. There is no defined
schema which is used to identify the overall type of module outputs, so
all outputs must exist in the state to build the correct type for proper
evaluation.
Currently Terraform will use an entry from the global plugin cache only if
it matches a checksum already recorded in the dependency lock file. This
allows Terraform to produce a complete lock file entry on the first
encounter with a new provider, whereas using the cache in that case would
cause the lock file to only cover the single package in the cache and
thereefore be unusable on any other operating system or CPU architecture.
This temporary CLI config option is a pragmatic exception to support those
who cannot currently correctly use the dependency lock file but who still
want to benefit from the plugin cache. With this setting enabled,
Terraform has permission to produce a dependency lock file that is only
suitable for the current system if that would allow use of an existing
entry in the plugin cache.
We are introducing this option to resolve a conflict between the needs of
folks who are using the dependency lock file as expected and the needs of
folks who cannot use the dependency lock file for some reason. The hope
then is to give respite to those who need this exception in the meantime
while we understand better why they cannot use the dependency lock file
and improve its design so that everyone will be able to use it
successfully in a future version of Terraform. This option will become a
silent no-op in a future version of Terraform, once the dependency lock
file behavior is sufficient for all supported Terraform development
workflows.
The existing set comparison method uses the prior elements with the computed
portions nulled out to find candidates to match the configuration. This
has the shortcoming of always removing optional+computed attributes,
because we have not yet found the configuration to know if attribute was
set or not.
Rather than having to take the most pessimistic value before comparison
to precompute the nulled values, we can compare each candidate directly,
walking the values in tandem. Each prior value is compared against the
config and checked to see if it could have been derived from that
configuration value, which allows us to treat optional+computed as
optional if there is config and computed if there is not.
This removes the ambiguity from having optional+computed attributes
within sets, giving us consistent plans when all values are known.
Unknown values of course are still undecidable, as are edge cases were
providers refresh with altered values or retained changed prior values
plan that were deemed not functionally significant.
Unify the ProposedNew paths for Blocks and Objects. Break out the
individual case blocks into functions, then use a common interface to
dispatch the object creation to the correct function based on schema
type. This cuts the code in half, and prevents the block and object
behavior from diverging.
NestingMap structures are not well tested, and we panic in many
situations when null crops up. Fix the first test cases and start
refactoring best we can. This probably won't go so far as making all the
objchange functions generic over Block and Object, but we can simplify a
lot and verify parity in implementations for now.
We can check if an object in state must have at least partially come
from configuration, by seeing if the prior value has any non-null
attributes which are not computed in the schema.
This is used when the configuration contains a null optional+computed
value, and we want to know if we should plan to send the null value or
the prior state.
This was clearly wrong, but it was also harmless -- in the event of a failing
test due to missing tags, they would get double-reported as both missing and
unexpected. This commit separates out the reporting as intended.
Go's `append()` reserves the right to mutate its primary argument in-place, and
expects the caller to assign its return value to the same variable that was
passed as the primary argument. Due to what was almost definitely a typo
(followed by copy-paste mishap), the configschema `Block.ValueMarks` and
`Object.ValueMarks` functions were treating it like an immutable function that
returns a new slice.
In rare and hard-to-reproduce cases, this was causing bizarre malfunctions when
marking sensitive schema attributes in deeply-nested block structures --
omitting the marks for some sensitive values (🚨), and marking other entire
blocks as sensitive (which is supposed to be impossible). The chaotic and
unreliable nature of the bugs is likely related to `append()`'s automatic slice
reallocation behavior (if the append operation overflows the original array
allocation, the resulting behavior can _look_ immutable), but there might be
other contributing factors too.
This commit fixes existing instances of the problem, and wraps the desired
copy-and-append behavior in a helper function to simplify handling shared parent
paths in an immutable way.
Combine and simplify the set comparison functions for NestingSet blocks
and attribute types.
The set handling for structural attributes was not recursing into nested
values. Once a simplified method for comparing set elements was devised
for nested types, it turns out the same method could be applied to
nested set blocks as well.
* Use the new structured renderer in place of the old diffs package
* remove old plan tests
* refresh only plans should show moved resources in the refresh section
When structural attributes were added, optional+computed were not
correctly handled when containing nested values which could themselves
be computed. This would cause terraform to ignore previously computed
values from state when generating the proposed plan.
The special case for optional+computed was incorrect, but isn't needed
in the context of planning new values anyway. Attributes are either
computed, or not computed. When optional+computed is set and there is
no configuration, the attribute is treated as computed. It is up to the
provider to determine how and when to deal with any changes to that
computed value.
* remove attributes that do not match the relevant attributes filter
* fix formatting
* fix renderer function, don't drop irrelevant attributes just mark them as no-ops
* fix imports
* fix bugs in the renderer exposed by the equivalence tests
* imports
* gofmt
* remove attributes that do not match the relevant attributes filter
* fix formatting
* fix renderer function, don't drop irrelevant attributes just mark them as no-ops
* fix imports
* Add consolidated function description list
* Add function parameter descriptions
* Add descriptions to all functions
* Add sanity test for function descriptions
* Apply suggestions from code review
Co-authored-by: kmoe <5575356+kmoe@users.noreply.github.com>
Co-authored-by: kmoe <5575356+kmoe@users.noreply.github.com>
The configuration may be supplying a typed null value to the
terraform_data.input attribute, which must be reflected in the output to
have a valid plan.
* raw unmodified broken tests
* tests execute, no panics
* fix whitespace differences
* fix all the tests
* fix tests
* actually fix tests
* add missing plan metadata into the renderer
* address comments
* complete merge
* remove TODO raising questions about outputs, they are fixed
* missing bold on plan
* pause implementation
* change -> diff, value -> change
* add support for json and multiline strings to the primitive renderer
* goimports
* remove unused function
* go fmt
* address comments
* change -> diff, value -> change
* also update readme#
* pause
* Update internal/command/jsonformat/computed/diff.go
Co-authored-by: Alisdair McDiarmid <alisdair@users.noreply.github.com>
* add interface assertions for diff renderers
* Add support for different kinds of blocks, and for sensitive blocks
Co-authored-by: Alisdair McDiarmid <alisdair@users.noreply.github.com>
