dotcloud/docker

package client // import "github.com/docker/docker/client"

import (
    "context"
    "encoding/json"
    "fmt"
    "net/url"

    "github.com/docker/docker/api/types"
)

// DiskUsage requests the current data usage from the daemon
func (cli *Client) DiskUsage(ctx context.Context, options types.DiskUsageOptions) (types.DiskUsage, error) {
    var query url.Values
    if len(options.Types) > 0 {
        query = url.Values{}
        for _, t := range options.Types {
            query.Add("type", string(t))
        }
    }

    serverResp, err := cli.get(ctx, "/system/df", query, nil)
    defer ensureReaderClosed(serverResp)
    if err != nil {
        return types.DiskUsage{}, err
    }

    var du types.DiskUsage
    if err := json.NewDecoder(serverResp.body).Decode(&du); err != nil {
        return types.DiskUsage{}, fmt.Errorf("Error retrieving disk usage: %v", err)
    }
    return du, nil
}