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render_provider_config.go
97 lines (83 loc) · 2.76 KB
/
render_provider_config.go
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package gen
import (
"sort"
tfjson "github.com/hashicorp/terraform-json"
j "github.com/jsonnet-libs/k8s/pkg/builder"
d "github.com/jsonnet-libs/k8s/pkg/builder/docsonnet"
)
// renderProvider will render the libsonnet code for constructing a provider block for the given provider. The generated
// libsonnet code will only consist of the constructors (including for nested blocks), as implementing the mixin
// functions for the provider is difficult due to providers being a list instead of a map.
func renderProvider(name string, schema *tfjson.SchemaBlock) (*j.Doc, error) {
locals := []j.LocalType{
importCore(),
importDocsonnet(),
}
rootFields := sortedTypeList{}
constructorDocs, err := providerConstructorDocs(name, schema)
if err != nil {
return nil, err
}
constructor, err := providerConstructor(name, schema)
if err != nil {
return nil, err
}
rootFields = append(rootFields, *constructorDocs, j.Hidden(constructor))
attrsConstructorDocs, err := providerNewAttrsDocs(name, schema)
if err != nil {
return nil, err
}
attrsConstructor, err := attrsConstructor(
newAttrsFnName, "", name, IsProvider, schema,
)
if err != nil {
return nil, err
}
rootFields = append(rootFields, *attrsConstructorDocs, j.Hidden(*attrsConstructor))
// Render constructor for nested blocks
nestedFields := sortedTypeList{}
for _, cfg := range getNestedBlocks(schema) {
blockObj, err := nestedBlockObject(name, "", cfg)
if err != nil {
return nil, err
}
nestedFields = append(nestedFields, j.Hidden(blockObj))
}
sort.Sort(nestedFields)
rootFields = append(rootFields, nestedFields...)
// Prepend package docs
docstr, err := providerDocString(name, schema.Description)
if err != nil {
return nil, err
}
doc := d.Pkg("provider", "", docstr)
rootFields = append([]j.Type{doc}, rootFields...)
rootObj := j.Object("provider", rootFields...)
return &j.Doc{Locals: locals, Root: rootObj}, nil
}
func providerConstructor(name string, schema *tfjson.SchemaBlock) (j.FuncType, error) {
providerCallArgs := []j.Type{j.String("name", name)}
params := constructorParamList(schema)
// Add the provider specific args:
// - alias for setting an alias on the provider block
// - src and version for injecting in required_providers in the resulting document.
providerParams := []string{"alias", "src", "version"}
for _, p := range providerParams {
params.params = append(params.params, j.Null(p))
providerCallArgs = append(providerCallArgs, j.Ref(p, p))
}
attrs := j.Call("attrs", "self."+newAttrsFnName, params.attrsCallArgs)
providerCallArgs = append(providerCallArgs, attrs)
fnName := "tf.withProvider"
resource := j.Call(
"",
fnName,
providerCallArgs,
)
fn := j.LargeFunc(
constructorFnName,
j.Args(params.params...),
resource,
)
return fn, nil
}