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server.go
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server.go
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package resolver
import (
"context"
internal "github.com/UpCloudLtd/upcloud-cli/v3/internal/service"
)
// CachingServer implements resolver for servers, caching the results
type CachingServer struct{}
// make sure we implement the ResolutionProvider interface
var _ ResolutionProvider = CachingServer{}
// Get implements ResolutionProvider.Get
func (s CachingServer) Get(ctx context.Context, svc internal.AllServices) (Resolver, error) {
servers, err := svc.GetServers(ctx)
if err != nil {
return nil, err
}
return func(arg string) (uuid string, err error) {
rv := ""
for _, server := range servers.Servers {
if MatchArgWithWhitespace(arg, server.Title) || server.Hostname == arg || server.UUID == arg {
if rv != "" {
return "", AmbiguousResolutionError(arg)
}
rv = server.UUID
}
}
if rv != "" {
return rv, nil
}
return "", NotFoundError(arg)
}, nil
}
// PositionalArgumentHelp implements resolver.ResolutionProvider
func (s CachingServer) PositionalArgumentHelp() string {
return "<UUID/Title/Hostname...>"
}