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https://github.com/opentofu/opentofu.git
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d905b990a5
Make the interface name reflect the new return type of the method. Remove the confusingly named and unused ResourceAddress method from the resource nodes as well.
77 lines
2.6 KiB
Go
77 lines
2.6 KiB
Go
package terraform
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import (
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"fmt"
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"log"
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"github.com/hashicorp/terraform/addrs"
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"github.com/hashicorp/terraform/configs"
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)
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// EvalCountFixZeroOneBoundaryGlobal is an EvalNode that fixes up the state
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// when there is a resource count with zero/one boundary, i.e. fixing
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// a resource named "aws_instance.foo" to "aws_instance.foo.0" and vice-versa.
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//
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// This works on the global state.
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type EvalCountFixZeroOneBoundaryGlobal struct {
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Config *configs.Config
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}
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// TODO: test
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func (n *EvalCountFixZeroOneBoundaryGlobal) Eval(ctx EvalContext) (interface{}, error) {
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// We'll temporarily lock the state to grab the modules, then work on each
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// one separately while taking a lock again for each separate resource.
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// This means that if another caller concurrently adds a module here while
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// we're working then we won't update it, but that's no worse than the
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// concurrent writer blocking for our entire fixup process and _then_
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// adding a new module, and in practice the graph node associated with
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// this eval depends on everything else in the graph anyway, so there
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// should not be concurrent writers.
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state := ctx.State().Lock()
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moduleAddrs := make([]addrs.ModuleInstance, 0, len(state.Modules))
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for _, m := range state.Modules {
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moduleAddrs = append(moduleAddrs, m.Addr)
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}
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ctx.State().Unlock()
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for _, addr := range moduleAddrs {
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cfg := n.Config.DescendentForInstance(addr)
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if cfg == nil {
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log.Printf("[WARN] Not fixing up EachModes for %s because it has no config", addr)
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continue
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}
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if err := n.fixModule(ctx, addr); err != nil {
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return nil, err
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}
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}
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return nil, nil
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}
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func (n *EvalCountFixZeroOneBoundaryGlobal) fixModule(ctx EvalContext, moduleAddr addrs.ModuleInstance) error {
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ms := ctx.State().Module(moduleAddr)
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cfg := n.Config.DescendentForInstance(moduleAddr)
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if ms == nil {
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// Theoretically possible for a concurrent writer to delete a module
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// while we're running, but in practice the graph node that called us
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// depends on everything else in the graph and so there can never
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// be a concurrent writer.
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return fmt.Errorf("[WARN] no state found for %s while trying to fix up EachModes", moduleAddr)
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}
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if cfg == nil {
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return fmt.Errorf("[WARN] no config found for %s while trying to fix up EachModes", moduleAddr)
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}
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for _, r := range ms.Resources {
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rCfg := cfg.Module.ResourceByAddr(r.Addr.Resource)
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if rCfg == nil {
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log.Printf("[WARN] Not fixing up EachModes for %s because it has no config", r.Addr)
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continue
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}
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hasCount := rCfg.Count != nil
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fixResourceCountSetTransition(ctx, r.Addr.Config(), hasCount)
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}
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return nil
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}
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