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117 lines
2.4 KiB
117 lines
2.4 KiB
package driver
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import (
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"sort"
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"strconv"
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rspb "k8s.io/helm/pkg/proto/hapi/release"
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)
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// records holds a list of in-memory release records
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type records []*record
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func (rs records) Len() int { return len(rs) }
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func (rs records) Swap(i, j int) { rs[i], rs[j] = rs[j], rs[i] }
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func (rs records) Less(i, j int) bool { return rs[i].rls.Version < rs[j].rls.Version }
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func (rs *records) Add(r *record) error {
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if r == nil {
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return nil
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}
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if rs.Exists(r.key) {
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return ErrReleaseExists
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}
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*rs = append(*rs, r)
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sort.Sort(*rs)
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return nil
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}
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func (rs records) Get(key string) *record {
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if i, ok := rs.Index(key); ok {
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return rs[i]
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}
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return nil
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}
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func (rs *records) Iter(fn func(int, *record) bool) {
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cp := make([]*record, len(*rs))
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copy(cp, *rs)
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for i, r := range cp {
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if !fn(i, r) {
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return
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}
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}
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}
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func (rs *records) Index(key string) (int, bool) {
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for i, r := range *rs {
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if r.key == key {
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return i, true
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}
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}
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return -1, false
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}
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func (rs records) Exists(key string) bool {
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_, ok := rs.Index(key)
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return ok
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}
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func (rs *records) Remove(key string) (r *record) {
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if i, ok := rs.Index(key); ok {
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return rs.removeAt(i)
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}
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return nil
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}
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func (rs *records) Replace(key string, rec *record) *record {
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if i, ok := rs.Index(key); ok {
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old := (*rs)[i]
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(*rs)[i] = rec
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return old
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}
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return nil
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}
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func (rs records) FindByVersion(vers int32) (int, bool) {
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i := sort.Search(len(rs), func(i int) bool {
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return rs[i].rls.Version == vers
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})
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if i < len(rs) && rs[i].rls.Version == vers {
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return i, true
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}
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return i, false
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}
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func (rs *records) removeAt(index int) *record {
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r := (*rs)[index]
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(*rs)[index] = nil
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copy((*rs)[index:], (*rs)[index+1:])
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*rs = (*rs)[:len(*rs)-1]
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return r
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}
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// record is the data structure used to cache releases
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// for the in-memory storage driver
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type record struct {
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key string
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lbs labels
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rls *rspb.Release
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}
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// newRecord creates a new in-memory release record
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func newRecord(key string, rls *rspb.Release) *record {
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var lbs labels
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lbs.init()
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lbs.set("NAME", rls.Name)
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lbs.set("STATUS", rspb.Status_Code_name[int32(rls.Info.Status.Code)])
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lbs.set("VERSION", strconv.Itoa(int(rls.Version)))
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return &record{key: key, lbs: lbs, rls: rls}
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}
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