package pm import ( "github.com/pkg/errors" ) // Name exists to document the keys in Available type Name string // Version exists to document the keys in Available type Version string // Available is the structure used to represent the collection of all packages // that can be installed. type Available map[Name]map[Version]Meta // Add inserts m into a. func (a Available) Add(m Meta) error { if _, err := m.Valid(); err != nil { return errors.Wrap(err, "invalid meta") } if _, ok := a[Name(m.Name)]; !ok { a[m.Name] = map[Version]Meta{} } a[m.Name][m.Version] = m return nil } // Update inserts all data from o into a. func (a Available) Update(o Available) error { for _, vers := range o { for _, m := range vers { if err := a.Add(m); err != nil { return errors.Wrap(err, "adding") } } } return nil }