skip the blocktoattr fixup with nested types
If structural types are being used, we can be assured that the legacy SDK SchemaConfigModeAttr is not being used, and the fixup is not needed. This prevents inadvertent mapping of blocks to structural attributes, and allows us to skip the fixup overhead when possible.
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parent
08a86b6c13
commit
6b4e73af48
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@ -12,6 +12,10 @@ import (
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// type in the schema to be written with HCL block syntax as multiple nested
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// blocks with the attribute name as the block type.
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//
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// The fixup is only applied in the absence of structural attribute types. The
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// presence of these types indicate the use of a provider which does not
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// support mapping blocks to attributes.
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//
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// This partially restores some of the block/attribute confusion from HCL 1
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// so that existing patterns that depended on that confusion can continue to
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// be used in the short term while we settle on a longer-term strategy.
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@ -28,6 +32,10 @@ func FixUpBlockAttrs(body hcl.Body, schema *configschema.Block) hcl.Body {
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schema = &configschema.Block{}
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}
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if skipFixup(schema) {
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return body
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}
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return &fixupBody{
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original: body,
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schema: schema,
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@ -35,6 +43,25 @@ func FixUpBlockAttrs(body hcl.Body, schema *configschema.Block) hcl.Body {
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}
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}
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// skipFixup detects any use of Attribute.NestedType. Because the fixup was
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// only supported for the legacy SDK, there is no situation where structural
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// attributes are used where the fixup is expected.
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func skipFixup(schema *configschema.Block) bool {
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for _, attr := range schema.Attributes {
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if attr.NestedType != nil {
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return true
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}
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}
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for _, block := range schema.BlockTypes {
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if skipFixup(&block.Block) {
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return true
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}
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}
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return false
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}
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type fixupBody struct {
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original hcl.Body
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schema *configschema.Block
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@ -400,6 +400,35 @@ container {
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}),
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wantErrs: true,
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},
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"no fixup allowed": {
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src: `
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container {
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foo = "one"
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}
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`,
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schema: &configschema.Block{
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Attributes: map[string]*configschema.Attribute{
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"container": {
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NestedType: &configschema.Object{
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Nesting: configschema.NestingList,
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Attributes: map[string]*configschema.Attribute{
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"foo": {
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Type: cty.String,
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},
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},
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},
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},
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},
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},
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want: cty.ObjectVal(map[string]cty.Value{
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"container": cty.NullVal(cty.List(
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cty.Object(map[string]cty.Type{
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"foo": cty.String,
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}),
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)),
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}),
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wantErrs: true,
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},
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}
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ctx := &hcl.EvalContext{
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