forked from cloudfoundry/bosh-backup-and-restore
/
release_mapping.go
58 lines (46 loc) · 1.72 KB
/
release_mapping.go
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package bosh
import (
"fmt"
"github.com/cloudfoundry-incubator/bosh-backup-and-restore/instance"
"github.com/cppforlife/go-patch/patch"
"gopkg.in/yaml.v1"
"github.com/pkg/errors"
)
type ManifestReleaseMapping struct {
manifest interface{}
v2Manifest bool
}
func (rm ManifestReleaseMapping) FindReleaseName(instanceGroupName, jobName string) (string, error) {
var releasePath string
if rm.v2Manifest {
releasePath = fmt.Sprintf("/instance_groups/name=%s/jobs/name=%s/release", instanceGroupName, jobName)
} else {
releasePath = fmt.Sprintf("/jobs/name=%s/templates/name=%s/release", instanceGroupName, jobName)
}
releasePointer, err := patch.NewPointerFromString(releasePath)
if err != nil {
return "", errors.Wrap(err, fmt.Sprintf("error finding release name for job %s in instance group %s", jobName, instanceGroupName))
}
release, err := patch.FindOp{Path: releasePointer}.Apply(rm.manifest)
if err != nil {
return "", errors.Wrap(err, fmt.Sprintf("error finding release name for job %s in instance group %s", jobName, instanceGroupName))
}
return release.(string), nil
}
func NewBoshManifestReleaseMapping(manifest string) (instance.ReleaseMapping, error) {
var parsedManifest interface{}
err := yaml.Unmarshal([]byte(manifest), &parsedManifest)
if err != nil {
return nil, errors.Wrap(err, "error unmarshalling manifest yaml")
}
v2Manifest := isV2Manifest(parsedManifest)
return ManifestReleaseMapping{manifest: parsedManifest, v2Manifest: v2Manifest}, nil
}
func isV2Manifest(manifest interface{}) bool {
instanceGroupPath := patch.MustNewPointerFromString(fmt.Sprintf("/instance_groups"))
_, err := patch.FindOp{Path: instanceGroupPath}.Apply(manifest)
if err != nil {
return false
}
return true
}