github.com/ssdev-go/moby@v17.12.1-ce-rc2+incompatible/client/utils.go (about)

     1  package client
     2  
     3  import (
     4  	"net/url"
     5  	"regexp"
     6  
     7  	"github.com/docker/docker/api/types/filters"
     8  )
     9  
    10  var headerRegexp = regexp.MustCompile(`\ADocker/.+\s\((.+)\)\z`)
    11  
    12  // getDockerOS returns the operating system based on the server header from the daemon.
    13  func getDockerOS(serverHeader string) string {
    14  	var osType string
    15  	matches := headerRegexp.FindStringSubmatch(serverHeader)
    16  	if len(matches) > 0 {
    17  		osType = matches[1]
    18  	}
    19  	return osType
    20  }
    21  
    22  // getFiltersQuery returns a url query with "filters" query term, based on the
    23  // filters provided.
    24  func getFiltersQuery(f filters.Args) (url.Values, error) {
    25  	query := url.Values{}
    26  	if f.Len() > 0 {
    27  		filterJSON, err := filters.ToJSON(f)
    28  		if err != nil {
    29  			return query, err
    30  		}
    31  		query.Set("filters", filterJSON)
    32  	}
    33  	return query, nil
    34  }