client/image_list.go
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 package client
 
 import (
 	"encoding/json"
 	"net/url"
 
 	"github.com/docker/docker/api/types"
 	"github.com/docker/docker/api/types/filters"
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 	"github.com/docker/docker/api/types/versions"
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 	"golang.org/x/net/context"
 )
 
 // ImageList returns a list of images in the docker host.
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 func (cli *Client) ImageList(ctx context.Context, options types.ImageListOptions) ([]types.ImageSummary, error) {
 	var images []types.ImageSummary
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 	query := url.Values{}
 
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 	optionFilters := options.Filters
 	referenceFilters := optionFilters.Get("reference")
 	if versions.LessThan(cli.version, "1.25") && len(referenceFilters) > 0 {
 		query.Set("filter", referenceFilters[0])
 		for _, filterValue := range referenceFilters {
 			optionFilters.Del("reference", filterValue)
 		}
 	}
 	if optionFilters.Len() > 0 {
 		filterJSON, err := filters.ToParamWithVersion(cli.version, optionFilters)
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 		if err != nil {
 			return images, err
 		}
 		query.Set("filters", filterJSON)
 	}
 	if options.All {
 		query.Set("all", "1")
 	}
 
 	serverResp, err := cli.get(ctx, "/images/json", query, nil)
 	if err != nil {
 		return images, err
 	}
 
 	err = json.NewDecoder(serverResp.body).Decode(&images)
 	ensureReaderClosed(serverResp)
 	return images, err
 }