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88b5607a7a
Previously we fetched schemas during the AttachSchemaTransformer, potentially multiple times as that was re-run for each graph built. Now we fetch the schemas just once during context construction, passing that result into each of the graph builders. This only addresses the schema accesses during graph construction. We're still separately loading schemas during the main walk for evaluation purposes. This will be addressed in a later commit.
78 lines
2.0 KiB
Go
78 lines
2.0 KiB
Go
package terraform
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import (
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"github.com/hashicorp/terraform/addrs"
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"github.com/hashicorp/terraform/configs"
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"github.com/hashicorp/terraform/dag"
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"github.com/hashicorp/terraform/tfdiags"
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)
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// DestroyPlanGraphBuilder implements GraphBuilder and is responsible for
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// planning a pure-destroy.
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//
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// Planning a pure destroy operation is simple because we can ignore most
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// ordering configuration and simply reverse the state.
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type DestroyPlanGraphBuilder struct {
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// Config is the configuration tree to build the plan from.
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Config *configs.Config
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// State is the current state
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State *State
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// Targets are resources to target
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Targets []addrs.Targetable
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// Schemas is the repository of schemas we will draw from to analyse
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// the configuration.
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Schemas *Schemas
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// Validate will do structural validation of the graph.
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Validate bool
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}
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// See GraphBuilder
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func (b *DestroyPlanGraphBuilder) Build(path addrs.ModuleInstance) (*Graph, tfdiags.Diagnostics) {
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return (&BasicGraphBuilder{
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Steps: b.Steps(),
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Validate: b.Validate,
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Name: "DestroyPlanGraphBuilder",
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}).Build(path)
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}
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// See GraphBuilder
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func (b *DestroyPlanGraphBuilder) Steps() []GraphTransformer {
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concreteResourceInstance := func(a *NodeAbstractResourceInstance) dag.Vertex {
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return &NodePlanDestroyableResourceInstance{
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NodeAbstractResourceInstance: a,
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}
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}
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steps := []GraphTransformer{
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// Creates all the nodes represented in the state.
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&StateTransformer{
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Concrete: concreteResourceInstance,
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State: b.State,
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},
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// Attach the configuration to any resources
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&AttachResourceConfigTransformer{Config: b.Config},
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// Destruction ordering. We require this only so that
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// targeting below will prune the correct things.
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&DestroyEdgeTransformer{
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Config: b.Config,
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State: b.State,
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Schemas: b.Schemas,
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},
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// Target. Note we don't set "Destroy: true" here since we already
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// created proper destroy ordering.
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&TargetsTransformer{Targets: b.Targets},
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// Single root
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&RootTransformer{},
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}
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return steps
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}
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