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package client // import "github.com/docker/docker/client"
import (
"net/url"
"regexp"
"github.com/docker/docker/api/types/filters"
)
var headerRegexp = regexp.MustCompile(`\ADocker/.+\s\((.+)\)\z`)
// getDockerOS returns the operating system based on the server header from the daemon.
func getDockerOS(serverHeader string) string {
var osType string
matches := headerRegexp.FindStringSubmatch(serverHeader)
if len(matches) > 0 {
osType = matches[1]
}
return osType
}
// getFiltersQuery returns a url query with "filters" query term, based on the
// filters provided.
func getFiltersQuery(f filters.Args) (url.Values, error) {
query := url.Values{}
if f.Len() > 0 {
filterJSON, err := filters.ToJSON(f)
if err != nil {
return query, err
}
query.Set("filters", filterJSON)
}
return query, nil
}