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38 lines
1.4 KiB
Go
38 lines
1.4 KiB
Go
// Copyright (c) The OpenTofu Authors
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// SPDX-License-Identifier: MPL-2.0
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// Copyright (c) 2023 HashiCorp, Inc.
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// SPDX-License-Identifier: MPL-2.0
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package tofu
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import (
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"log"
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"github.com/opentofu/opentofu/internal/addrs"
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"github.com/opentofu/opentofu/internal/plans"
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)
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// reducePlan takes a planned resource instance change as might be produced by
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// Plan or PlanDestroy and "simplifies" it to a single atomic action to be
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// performed by a specific graph node.
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//
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// Callers must specify whether they are a destroy node or a regular apply node.
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// If the result is NoOp then the given change requires no action for the
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// specific graph node calling this and so evaluation of the that graph node
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// should exit early and take no action.
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//
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// The returned object may either be identical to the input change or a new
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// change object derived from the input. Because of the former case, the caller
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// must not mutate the object returned in OutChange.
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func reducePlan(addr addrs.ResourceInstance, in *plans.ResourceInstanceChange, destroy bool) *plans.ResourceInstanceChange {
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out := in.Simplify(destroy)
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if out.Action != in.Action {
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if destroy {
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log.Printf("[TRACE] reducePlan: %s change simplified from %s to %s for destroy node", addr, in.Action, out.Action)
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} else {
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log.Printf("[TRACE] reducePlan: %s change simplified from %s to %s for apply node", addr, in.Action, out.Action)
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}
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}
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return out
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}
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