22 Commits (f1657bb3e35acad90f6aff79110c593b9462cc4d)

Author	SHA1	Message	Date
Martin Atkins	a43b7df282	core: Handle forced-create_before_destroy during the plan walk ... Previously we used a single plan action "Replace" to represent both the destroy-before-create and the create-before-destroy variants of replacing. However, this forces the apply graph builder to jump through a lot of hoops to figure out which nodes need it forced on and rebuild parts of the graph to represent that. If we instead decide between these two cases at plan time, the actual determination of it is more straightforward because each resource is represented by only one node in the plan graph, and then we can ensure we put the right nodes in the graph during DiffTransformer and thus avoid the logic for dealing with deposed instances being spread across various different transformers and node types. As a nice side-effect, this also allows us to show the difference between destroy-then-create and create-then-destroy in the rendered diff in the CLI, although this change doesn't fully implement that yet.	7 years ago
Martin Atkins	a37d5268eb	command/format: Render unified diff for list and tuple value changes	7 years ago
Martin Atkins	30a46ed8ed	command/format: Further refinement on the heuristic JSON-based diff ... We'll now show an "update" symbol prior to the argument to this synthetic jsonencode(...) call, for consistency with how we show nested values in other cases and to attach a verb to any "# forces replacement". We'll also show a special form in the case where the value seems to differ only in whitespace, so users can understand what's going on in that hopefully-rare situation, particularly if those whitespace-only changes end up forcing us to replace a remote object.	7 years ago
Martin Atkins	783205948c	command/format: JSON value formatting heuristic not for primitive values ... Since our own syntax for primitive values is similar to that of JSON, and since we permit automatic conversions from number and bool to string, we must do this special JSON value diff formatting only if the value is a JSON array or object to avoid confusing results.	7 years ago
Martin Atkins	4406b06ef8	command/format: Don't include commas after elements in map diffs ... Although commas are allowed in this context, it's not idiomatic to use them.	7 years ago
Martin Atkins	ce157c7f23	command/format: show deep diffs for old/new JSON strings ... Because so far we've not supported dynamically-typed complex data structures, several providers have used strings containing JSON to stand in for these. In order to get a readable diff in those cases, we'll recognize situations where old and new are both JSON and present a diff of the effective value of the JSON, using a faux call to the jsonencode(...) function to indicate when we've done so. This is a bit of a "cute" heuristic, but is important at least for now until we can migrate away from that practice of passing large JSON strings to providers and use dynamically-typed attributes instead.	7 years ago
Martin Atkins	9706a00b3a	command/format: correct alignment for multi-line values in map diff	7 years ago
Martin Atkins	04d8c17be8	command/format: Nice rendering for changes to map values	7 years ago
Martin Atkins	a2f4b8b058	command/format: Show resource diff with header "comment" ... This extra comment line gives us a place to show the full resource address (since the block header line only includes type and name) and also allows us to explain in long form the meaning of the change icon on the following line.	7 years ago
Martin Atkins	239a54ad6f	command: initial structural diff rendering ... This is a light adaptation of our earlier prototype of structural diff rendering, as a starting point for what we'll actually ship. This is not consistent with the latest mocks, so will need some additional work before it is ready, but integrating this allows us to at least see the plan contents while fixing up remaining issues elsewhere.	7 years ago
Martin Atkins	a7342de274	core: Properly handle no-op changes in plan ... Previously we just left these out of the plan altogether, but in the new plan types we intentionally include change information for every resource instance, even if no changes are actually planned, to allow alternative plan file viewers to show what isn't changing as well as what is.	7 years ago
Martin Atkins	5731703de5	command/format: show planned changes in rendered plan ... This codepath is going to be significantly changed before release to make it support structural diff of the new data types, but this lets us lean on the old renderer to produce partial output in the mean time while we continue to work on getting things working end-to-end after the considerable refactoring that's been going on.	7 years ago
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 5861dbf3fc before, I apologize in advance to the person who inevitably just found this huge commit while spelunking through the commit history.	7 years ago
Martin Atkins	2ef56b3e05	Fix up some missed "go fmt" ... Because of the size of some of these files, automatic format-on-save was implicitly disabled in my editor, which I didn't notice before committing.	7 years ago
Martin Atkins	bd10b84a8e	command/format: include source snippets in diagnostics ... If we get a diagnostic message that references a source range, and if the source code for the referenced file is available, we'll show a snippet of the source code with the source range highlighted. At the moment we have no cache of source code, so in practice this codepath can never be visited. Callers to format.Diagnostic will be gradually updated in subsequent commits.	7 years ago
James Bardin	a37acb1837	gofmt with go1.10	8 years ago
Martin Atkins	ea81e75a4e	command: utility for rendering tfdiag diagnostics ... This new method showDiagnostics takes any value that would be accepted by tfdiags.Append and renders it to the UI. This is intended to encourage consistent handling of the different kinds of errors and diagnostics that can be produced, and allow richer error objects like the HCL2 diagnostics to be easily unwrapped and shown in their full-fidelity.	9 years ago
Martin Atkins	fe4cfd03b5	command/format: restore "(forces new resource)" caption ... In 3ea1592 the plan rendering was refactored to add an extra indirection of producing a display-oriented plan object first and then rendering from that object. There was a logic error while adapting the existing plan rendering code to use the new display-oriented object: the core InstanceDiff object sets the "Destroy" flag (a boolean) for both DiffDestroy and DiffDestroyCreate, and so this code previously checked r.Destroy to recognize the "destroy-create" case. This was incorrectly adapted to a check for the display action being DiffDestroy, when it should actually have been DiffDestroyCreate. The effect of this bug was to cause the "(forces new resource)" annotations to not be displayed on attributes, though the resource-level information still correctly reflected that a new resource was required. This fix restores the attribute-level annotations.	9 years ago
Martin Atkins	83414beb8f	command: various adjustments to the diff presentation ... The previous diff presentation was rather "wordy", and not very friendly to those who can't see color either because they have color-blindness or because they don't have a color-supporting terminal. This new presentation uses the actual symbols used in the plan output and tries to be more concise. It also uses some framing characters to try to separate the different stages of "terraform plan" to make it easier to visually navigate. The apply command also adopts this new plan presentation, in preparation for "terraform apply" (with interactive plan confirmation) becoming the primary, safe workflow in the next major release. Finally, we standardize on the terminology "perform" and "actions" rather than "execute" and "changes" to reflect the fact that reading is now an action and that isn't actually a _change_.	9 years ago
Martin Atkins	3ea159297c	command/format: improve consistency of plan results ... Previously the rendered plan output was constructed directly from the core plan and then annotated with counts derived from the count hook. At various places we applied little adjustments to deal with the fact that the user-facing diff model is not identical to the internal diff model, including the special handling of data source reads and destroys. Since this logic was just muddled into the rendering code, it behaved inconsistently with the tally of adds, updates and deletes. This change reworks the plan formatter so that it happens in two stages: - First, we produce a specialized Plan object that is tailored for use in the UI. This applies all the relevant logic to transform the physical model into the user model. - Second, we do a straightforward visual rendering of the display-oriented plan object. For the moment this is slightly overkill since there's only one rendering path, but it does give us the benefit of letting the counts be derived from the same data as the full detailed diff, ensuring that they'll stay consistent. Later we may choose to have other UIs for plans, such as a machine-readable output intended to drive a web UI. In that case, we'd want the web UI to consume a serialization of the _display-oriented_ plan so that it doesn't need to re-implement all of these UI special cases. This introduces to core a new diff action type for "refresh". Currently this is used _only_ in the UI layer, to represent data source reads. Later it would be good to use this type for the core diff as well, to improve consistency, but that is left for another day to keep this change focused on the UI.	9 years ago
Martin Atkins	0dc6d97a37	command/format: minor adjustments to plan rendering ... This change makes various minor adjustments to the rendering of plans in the output of "terraform plan": - Resources are identified using the standard resource address syntax, rather than exposing the legacy internal representation used in the module diff resource keys. This fixes #8713. - Subjectively, having square brackets in the addresses made it look more visually "off" when the same name but with different indices were shown together with differing-length "symbols", so the symbols are now all padded and right-aligned to three characters for consistent layout across all operations. - The -/+ action is now more visually distinct, using several different colors to help communicate what it will do and including a more obvious "(new resource required)" marker to help draw attention to this not being just an update diff. This fixes #15350. - The resources are now sorted in a manner that sorts index [10] after index [9], rather than after index [1] as we did before. This makes it easier to scan the list and avoids the common confusion where it seems that there are only 10 items when in fact there are 11-20 items with all the tens hiding further up in the list.	9 years ago
Mitchell Hashimoto	0a0842a7d9	command/format: a package for formatting plans/state for output	9 years ago