databricks-cli/bundle/deploy/terraform/tfdyn/rename_keys.go

47 lines
1.1 KiB
Go

package tfdyn
import (
"github.com/databricks/cli/libs/dyn"
"github.com/databricks/cli/libs/dyn/merge"
)
// renameKeys renames keys in the given map value.
//
// Terraform resources sometimes use singular names for repeating blocks where the API
// definition uses the plural name. This function can convert between the two.
func renameKeys(v dyn.Value, rename map[string]string) (dyn.Value, error) {
var err error
var acc = dyn.V(map[string]dyn.Value{})
nv, err := dyn.Walk(v, func(p dyn.Path, v dyn.Value) (dyn.Value, error) {
if len(p) == 0 {
return v, nil
}
// Check if this key should be renamed.
for oldKey, newKey := range rename {
if p[0].Key() != oldKey {
continue
}
// Add the new key to the accumulator.
p[0] = dyn.Key(newKey)
acc, err = dyn.SetByPath(acc, p, v)
if err != nil {
return dyn.InvalidValue, err
}
return dyn.InvalidValue, dyn.ErrDrop
}
// Pass through all other values.
return v, dyn.ErrSkip
})
if err != nil {
return dyn.InvalidValue, err
}
// Merge the accumulator with the original value.
return merge.Merge(nv, acc)
}