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releases.go
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releases.go
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package releases
import (
"context"
"github.com/giantswarm/k8sclient/v7/pkg/k8sclient"
"github.com/giantswarm/microerror"
releasev1alpha1 "github.com/giantswarm/release-operator/v4/api/v1alpha1"
apierrors "k8s.io/apimachinery/pkg/api/errors"
"k8s.io/apimachinery/pkg/types"
"github.com/giantswarm/aws-operator/v15/service/controller/key"
"github.com/giantswarm/aws-operator/v15/service/internal/releases/internal/cache"
)
type Config struct {
K8sClient k8sclient.Interface
}
type Releases struct {
k8sClient k8sclient.Interface
releaseCache *cache.Release
}
func New(c Config) (*Releases, error) {
if c.K8sClient == nil {
return nil, microerror.Maskf(invalidConfigError, "%T.K8sClient must not be empty", c)
}
r := &Releases{
k8sClient: c.K8sClient,
releaseCache: cache.NewRelease(),
}
return r, nil
}
func (r *Releases) Release(ctx context.Context, version string) (releasev1alpha1.Release, error) {
re, err := r.cachedRelease(ctx, version)
if err != nil {
return releasev1alpha1.Release{}, microerror.Mask(err)
}
return re, nil
}
func (r *Releases) cachedRelease(ctx context.Context, version string) (releasev1alpha1.Release, error) {
var err error
var ok bool
var re releasev1alpha1.Release
{
rk := r.releaseCache.Key(ctx, version)
if rk == "" {
re, err = r.lookupRelease(ctx, version)
if err != nil {
return releasev1alpha1.Release{}, microerror.Mask(err)
}
} else {
re, ok = r.releaseCache.Get(ctx, version)
if !ok {
re, err = r.lookupRelease(ctx, version)
if err != nil {
return releasev1alpha1.Release{}, microerror.Mask(err)
}
r.releaseCache.Set(ctx, version, re)
}
}
}
return re, nil
}
func (r *Releases) lookupRelease(ctx context.Context, version string) (releasev1alpha1.Release, error) {
var re releasev1alpha1.Release
err := r.k8sClient.CtrlClient().Get(
ctx,
types.NamespacedName{Name: key.ReleaseName(version)},
&re,
)
if apierrors.IsNotFound(err) {
return releasev1alpha1.Release{}, microerror.Mask(notFoundError)
} else if err != nil {
return releasev1alpha1.Release{}, microerror.Mask(err)
}
return re, nil
}