moby/client/build_prune.go

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package client
import (
"encoding/json"
"fmt"
"github.com/docker/docker/api/types"
"golang.org/x/net/context"
)
// BuildCachePrune requests the daemon to delete unused cache data
func (cli *Client) BuildCachePrune(ctx context.Context) (*types.BuildCachePruneReport, error) {
if err := cli.NewVersionError("1.31", "build prune"); err != nil {
return nil, err
}
report := types.BuildCachePruneReport{}
serverResp, err := cli.post(ctx, "/build/prune", nil, 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
}