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index.go
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index.go
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package helm
import (
"fmt"
"time"
log "github.com/sirupsen/logrus"
"github.com/Masterminds/semver"
)
type Entry struct {
Version string
Created time.Time
}
type Index struct {
Entries map[string]Entries
}
func (i *Index) GetEntries(chart string) (Entries, error) {
entries, ok := i.Entries[chart]
if !ok {
return nil, fmt.Errorf("chart '%s' not found in index", chart)
}
return entries, nil
}
type Entries []Entry
func (e Entries) MaxVersion(constraints *semver.Constraints) (*semver.Version, error) {
versions := semver.Collection{}
for _, entry := range e {
v, err := semver.NewVersion(entry.Version)
//Invalid semantic version ignored
if err == semver.ErrInvalidSemVer {
log.Debugf("Invalid sementic version: %s", entry.Version)
continue
}
if err != nil {
return nil, fmt.Errorf("invalid constraint in index: %v", err)
}
if constraints.Check(v) {
versions = append(versions, v)
}
}
if len(versions) == 0 {
return nil, fmt.Errorf("constraint not found in index")
}
maxVersion := versions[0]
for _, v := range versions {
if v.GreaterThan(maxVersion) {
maxVersion = v
}
}
return maxVersion, nil
}