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d4285dd27f
This is a little awkward since we need to instantiate the providers much earlier than before. To avoid a lot of reshuffling here we just spin each one up and then immediately shut it down again, letting our existing init functionality during the graph walk still do the main initialization.
56 lines
1.3 KiB
Go
56 lines
1.3 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/config/configschema"
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"github.com/hashicorp/terraform/dag"
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)
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// ResourceCountTransformer is a GraphTransformer that expands the count
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// out for a specific resource.
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//
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// This assumes that the count is already interpolated.
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type ResourceCountTransformer struct {
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Concrete ConcreteResourceInstanceNodeFunc
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Schema *configschema.Block
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// Count is either the number of indexed instances to create, or -1 to
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// indicate that count is not set at all and thus a no-key instance should
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// be created.
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Count int
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Addr addrs.AbsResource
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}
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func (t *ResourceCountTransformer) Transform(g *Graph) error {
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if t.Count < 0 {
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// Negative count indicates that count is not set at all.
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addr := t.Addr.Instance(addrs.NoKey)
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abstract := NewNodeAbstractResourceInstance(addr)
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abstract.Schema = t.Schema
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var node dag.Vertex = abstract
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if f := t.Concrete; f != nil {
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node = f(abstract)
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}
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g.Add(node)
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return nil
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}
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// For each count, build and add the node
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for i := 0; i < t.Count; i++ {
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key := addrs.IntKey(i)
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addr := t.Addr.Instance(key)
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abstract := NewNodeAbstractResourceInstance(addr)
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var node dag.Vertex = abstract
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if f := t.Concrete; f != nil {
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node = f(abstract)
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}
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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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