package client // import "github.com/docker/docker/client" import ( "context" "encoding/json" "fmt" "net/url" "github.com/docker/docker/api/types" "github.com/docker/docker/api/types/filters" "github.com/pkg/errors" ) // BuildCachePrune requests the daemon to delete unused cache data func (cli *Client) BuildCachePrune(ctx context.Context, opts types.BuildCachePruneOptions) (*types.BuildCachePruneReport, error) { if err := cli.NewVersionError("1.31", "build prune"); err != nil { return nil, err } report := types.BuildCachePruneReport{} query := url.Values{} if opts.All { query.Set("all", "1") } query.Set("keep-storage", fmt.Sprintf("%d", opts.KeepStorage)) filters, err := filters.ToJSON(opts.Filters) if err != nil { return nil, errors.Wrap(err, "prune could not marshal filters option") } query.Set("filters", filters) serverResp, err := cli.post(ctx, "/build/prune", query, nil, nil) if err != nil { return nil, err } defer ensureReaderClosed(serverResp) if err := json.NewDecoder(serverResp.body).Decode(&report); err != nil { return nil, fmt.Errorf("Error retrieving disk usage: %v", err) } return &report, nil }