60 lines
1.4 KiB
Go
60 lines
1.4 KiB
Go
package terraform
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import (
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"github.com/hashicorp/terraform/config/module"
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)
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// OutputTransformer is a GraphTransformer that adds all the outputs
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// in the configuration to the graph.
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//
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// This is done for the apply graph builder even if dependent nodes
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// aren't changing since there is no downside: the state will be available
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// even if the dependent items aren't changing.
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type OutputTransformer struct {
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Module *module.Tree
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}
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func (t *OutputTransformer) Transform(g *Graph) error {
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return t.transform(g, t.Module)
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}
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func (t *OutputTransformer) transform(g *Graph, m *module.Tree) error {
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// If no config, no outputs
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if m == nil {
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return nil
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}
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// Transform all the children. We must do this first because
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// we can reference module outputs and they must show up in the
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// reference map.
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for _, c := range m.Children() {
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if err := t.transform(g, c); err != nil {
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return err
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}
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}
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// If we have no outputs, we're done!
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os := m.Config().Outputs
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if len(os) == 0 {
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return nil
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}
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// Add all outputs here
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for _, o := range os {
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// Build the node.
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//
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// NOTE: For now this is just an "applyable" output. As we build
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// new graph builders for the other operations I suspect we'll
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// find a way to parameterize this, require new transforms, etc.
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node := &NodeApplyableOutput{
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PathValue: normalizeModulePath(m.Path()),
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Config: o,
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}
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// Add it!
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g.Add(node)
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}
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return nil
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}
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