56 lines
1.4 KiB
Go
56 lines
1.4 KiB
Go
|
package terraform
|
||
|
|
|
||
|
|
import (
|
||
|
|
"fmt"
|
||
|
|
"sync"
|
||
|
|
|
||
|
|
"github.com/hashicorp/terraform/config"
|
||
|
|
)
|
||
|
|
|
||
|
|
// BuiltinEvalContext is an EvalContext implementation that is used by
|
||
|
|
// Terraform by default.
|
||
|
|
type BuiltinEvalContext struct {
|
||
|
|
Providers map[string]ResourceProviderFactory
|
||
|
|
|
||
|
|
providers map[string]ResourceProvider
|
||
|
|
once sync.Once
|
||
|
|
}
|
||
|
|
|
||
|
|
func (ctx *BuiltinEvalContext) InitProvider(n string) (ResourceProvider, error) {
|
||
|
|
ctx.once.Do(ctx.init)
|
||
|
|
|
||
|
|
if p := ctx.Provider(n); p != nil {
|
||
|
|
return nil, fmt.Errorf("Provider '%s' already initialized", n)
|
||
|
|
}
|
||
|
|
|
||
|
|
f, ok := ctx.Providers[n]
|
||
|
|
if !ok {
|
||
|
|
return nil, fmt.Errorf("Provider '%s' not found", n)
|
||
|
|
}
|
||
|
|
|
||
|
|
return f()
|
||
|
|
}
|
||
|
|
|
||
|
|
func (ctx *BuiltinEvalContext) Provider(n string) ResourceProvider {
|
||
|
|
ctx.once.Do(ctx.init)
|
||
|
|
return ctx.providers[n]
|
||
|
|
}
|
||
|
|
|
||
|
|
func (ctx *BuiltinEvalContext) Interpolate(
|
||
|
|
config *config.RawConfig) (*ResourceConfig, error) {
|
||
|
|
// TODO: Actual interpolation, for now we just return it as-is
|
||
|
|
return NewResourceConfig(config), nil
|
||
|
|
}
|
||
|
|
|
||
|
|
func (ctx *BuiltinEvalContext) init() {
|
||
|
|
// We nil-check the things below because they're meant to be configured,
|
||
|
|
// and we just default them to non-nil.
|
||
|
|
if ctx.Providers == nil {
|
||
|
|
ctx.Providers = make(map[string]ResourceProviderFactory)
|
||
|
|
}
|
||
|
|
|
||
|
|
// We always reset the things below since we only call this once and
|
||
|
|
// they can't be initialized externally.
|
||
|
|
ctx.providers = make(map[string]ResourceProvider)
|
||
|
|
}
|