grafana/pkg/codegen/tmpl/kind_core.tmpl
sam boyer 4db3b2fd5c
Kindsys: Remove defs, Slot->SchemaInterface (#61069)
* kindsys: Remove defs, Slot->SchemaInterface

* Remove excess file

* Fix up tests

* Regenerate kinds report

* Final bits of cleanup

* Stop complaining, linter

* Update pkg/kindsys/kindcat_composable.cue

Co-authored-by: Tania <yalyna.ts@gmail.com>

Co-authored-by: Tania <yalyna.ts@gmail.com>
2023-01-06 12:37:32 -05:00

105 lines
3.2 KiB
Cheetah

package {{ .Properties.MachineName }}
import (
"github.com/grafana/grafana/pkg/kindsys"
"github.com/grafana/thema"
"github.com/grafana/thema/vmux"
)
// rootrel is the relative path from the grafana repository root to the
// directory containing the .cue files in which this kind is declared. Necessary
// for runtime errors related to the declaration and/or lineage to provide
// a real path to the correct .cue file.
const rootrel string = "kinds/{{ .Properties.MachineName }}"
// TODO standard generated docs
type Kind struct {
lin thema.ConvergentLineage[*{{ .Properties.Name }}]
jcodec vmux.Codec
valmux vmux.ValueMux[*{{ .Properties.Name }}]
decl kindsys.Decl[kindsys.CoreProperties]
}
// type guard
var _ kindsys.Core = &Kind{}
// TODO standard generated docs
func NewKind(rt *thema.Runtime, opts ...thema.BindOption) (*Kind, error) {
decl, err := kindsys.LoadCoreKind(rootrel, rt.Context(), nil)
if err != nil {
return nil, err
}
k := &Kind{
decl: decl,
}
lin, err := decl.Some().BindKindLineage(rt, opts...)
if err != nil {
return nil, err
}
// Get the thema.Schema that the meta says is in the current version (which
// codegen ensures is always the latest)
cursch := thema.SchemaP(lin, k.decl.Properties.CurrentVersion)
tsch, err := thema.BindType[*{{ .Properties.Name }}](cursch, &{{ .Properties.Name }}{})
if err != nil {
// Should be unreachable, modulo bugs in the Thema->Go code generator
return nil, err
}
k.jcodec = vmux.NewJSONCodec("{{ .Properties.MachineName }}.json")
k.lin = tsch.ConvergentLineage()
k.valmux = vmux.NewValueMux(k.lin.TypedSchema(), k.jcodec)
return k, nil
}
// TODO standard generated docs
func (k *Kind) Name() string {
return "{{ .Properties.MachineName }}"
}
// TODO standard generated docs
func (k *Kind) MachineName() string {
return "{{ .Properties.MachineName }}"
}
// TODO standard generated docs
func (k *Kind) Lineage() thema.Lineage {
return k.lin
}
// TODO standard generated docs
func (k *Kind) ConvergentLineage() thema.ConvergentLineage[*{{ .Properties.Name }}] {
return k.lin
}
// JSONValueMux is a version multiplexer that maps a []byte containing JSON data
// at any schematized dashboard version to an instance of {{ .Properties.Name }}.
//
// Validation and translation errors emitted from this func will identify the
// input bytes as "dashboard.json".
//
// This is a thin wrapper around Thema's [vmux.ValueMux].
func (k *Kind) JSONValueMux(b []byte) (*{{ .Properties.Name }}, thema.TranslationLacunas, error) {
return k.valmux(b)
}
// TODO standard generated docs
func (k *Kind) Maturity() kindsys.Maturity {
return k.decl.Properties.Maturity
}
// Decl returns the [kindsys.Decl] containing both CUE and Go representations of the
// {{ .Properties.MachineName }} declaration in .cue files.
func (k *Kind) Decl() kindsys.Decl[kindsys.CoreProperties] {
return k.decl
}
// Props returns a [kindsys.SomeKindProps], with underlying type [kindsys.CoreProperties],
// representing the static properties declared in the {{ .Properties.MachineName }} kind.
//
// This method is identical to calling Decl().Props. It is provided to satisfy [kindsys.Interface].
func (k *Kind) Props() kindsys.SomeKindProperties {
return k.decl.Properties
}