51 lines
1.2 KiB
Go
51 lines
1.2 KiB
Go
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package terraform
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import (
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"fmt"
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"github.com/hashicorp/terraform/dag"
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)
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// DisableProviderTransformer "disables" any providers that are not actually
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// used by anything. This avoids the provider being initialized and configured.
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// This both saves resources but also avoids errors since configuration
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// may imply initialization which may require auth.
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type DisableProviderTransformer struct{}
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func (t *DisableProviderTransformer) Transform(g *Graph) error {
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for _, v := range g.Vertices() {
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// We only care about providers
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pn, ok := v.(GraphNodeProvider)
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if !ok || pn.ProviderName() == "" {
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continue
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}
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// If we have dependencies, then don't disable
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if g.UpEdges(v).Len() > 0 {
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continue
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}
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// Get the path
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var path []string
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if pn, ok := v.(GraphNodeSubPath); ok {
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path = pn.Path()
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}
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// Disable the provider by replacing it with a "disabled" provider
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disabled := &NodeDisabledProvider{
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NodeAbstractProvider: &NodeAbstractProvider{
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NameValue: pn.ProviderName(),
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PathValue: path,
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},
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}
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if !g.Replace(v, disabled) {
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panic(fmt.Sprintf(
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"vertex disappeared from under us: %s",
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dag.VertexName(v)))
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}
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}
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return nil
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}
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