/
app.go
66 lines (58 loc) · 1.75 KB
/
app.go
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package schema
import (
"encoding/json"
"errors"
"github.com/appc/spec/schema/types"
)
const (
ACIExtension = ".aci"
)
type ImageManifest struct {
ACKind types.ACKind `json:"acKind"`
ACVersion types.SemVer `json:"acVersion"`
Name types.ACName `json:"name"`
Labels types.Labels `json:"labels"`
App types.App `json:"app"`
Annotations types.Annotations `json:"annotations"`
Dependencies types.Dependencies `json:"dependencies"`
PathWhitelist []string `json:"pathWhitelist"`
}
// appManifest is a model to facilitate extra validation during the
// unmarshalling of the ImageManifest
type appManifest ImageManifest
func (am *ImageManifest) UnmarshalJSON(data []byte) error {
a := appManifest{}
err := json.Unmarshal(data, &a)
if err != nil {
return err
}
nam := ImageManifest(a)
if err := nam.assertValid(); err != nil {
return err
}
*am = nam
return nil
}
func (am ImageManifest) MarshalJSON() ([]byte, error) {
if err := am.assertValid(); err != nil {
return nil, err
}
return json.Marshal(appManifest(am))
}
// assertValid performs extra assertions on an ImageManifest to ensure that
// fields are set appropriately, etc. It is used exclusively when marshalling
// and unmarshalling an ImageManifest. Most field-specific validation is
// performed through the individual types being marshalled; assertValid()
// should only deal with higher-level validation.
func (am *ImageManifest) assertValid() error {
if am.ACKind != "ImageManifest" {
return types.ACKindError(`missing or bad ACKind (must be "ImageManifest")`)
}
if am.ACVersion.Empty() {
return errors.New(`acVersion must be set`)
}
if am.Name.Empty() {
return errors.New(`name must be set`)
}
return nil
}