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a3403f2766
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.
93 lines
2.7 KiB
Go
93 lines
2.7 KiB
Go
package plans
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import (
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"sort"
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"github.com/hashicorp/terraform/addrs"
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"github.com/hashicorp/terraform/configs/configschema"
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"github.com/zclconf/go-cty/cty"
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)
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// Plan is the top-level type representing a planned set of changes.
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//
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// A plan is a summary of the set of changes required to move from a current
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// state to a goal state derived from configuration. The described changes
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// are not applied directly, but contain an approximation of the final
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// result that will be completed during apply by resolving any values that
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// cannot be predicted.
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//
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// A plan must always be accompanied by the state and configuration it was
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// built from, since the plan does not itself include all of the information
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// required to make the changes indicated.
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type Plan struct {
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VariableValues map[string]DynamicValue
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Changes *Changes
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TargetAddrs []addrs.Targetable
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ProviderSHA256s map[string][]byte
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Backend Backend
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}
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// Backend represents the backend-related configuration and other data as it
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// existed when a plan was created.
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type Backend struct {
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// Type is the type of backend that the plan will apply against.
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Type string
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// Config is the configuration of the backend, whose schema is decided by
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// the backend Type.
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Config DynamicValue
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// Workspace is the name of the workspace that was active when the plan
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// was created. It is illegal to apply a plan created for one workspace
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// to the state of another workspace.
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// (This constraint is already enforced by the statefile lineage mechanism,
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// but storing this explicitly allows us to return a better error message
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// in the situation where the user has the wrong workspace selected.)
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Workspace string
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}
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func NewBackend(typeName string, config cty.Value, configSchema *configschema.Block, workspaceName string) (*Backend, error) {
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dv, err := NewDynamicValue(config, configSchema.ImpliedType())
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if err != nil {
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return nil, err
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}
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return &Backend{
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Type: typeName,
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Config: dv,
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Workspace: workspaceName,
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}, nil
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}
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// ProviderAddrs returns a list of all of the provider configuration addresses
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// referenced throughout the receiving plan.
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//
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// The result is de-duplicated so that each distinct address appears only once.
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func (p *Plan) ProviderAddrs() []addrs.AbsProviderConfig {
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if p == nil || p.Changes == nil {
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return nil
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}
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m := map[string]addrs.AbsProviderConfig{}
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for _, rc := range p.Changes.Resources {
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m[rc.ProviderAddr.String()] = rc.ProviderAddr
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}
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if len(m) == 0 {
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return nil
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}
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// This is mainly just so we'll get stable results for testing purposes.
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keys := make([]string, 0, len(m))
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for k := range m {
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keys = append(keys, k)
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}
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sort.Strings(keys)
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ret := make([]addrs.AbsProviderConfig, len(keys))
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for i, key := range keys {
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ret[i] = m[key]
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}
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return ret
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}
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