package client import ( "encoding/json" "fmt" "net/url" "sort" "strings" "text/tabwriter" flag "github.com/docker/docker/pkg/mflag" "github.com/docker/docker/pkg/parsers" "github.com/docker/docker/pkg/stringutils" "github.com/docker/docker/registry" ) // ByStars sorts search results in ascending order by number of stars. type ByStars []registry.SearchResult func (r ByStars) Len() int { return len(r) } func (r ByStars) Swap(i, j int) { r[i], r[j] = r[j], r[i] } func (r ByStars) Less(i, j int) bool { return r[i].StarCount < r[j].StarCount } // CmdSearch searches the Docker Hub for images. // // Usage: docker search [OPTIONS] TERM func (cli *DockerCli) CmdSearch(args ...string) error { cmd := cli.Subcmd("search", []string{"TERM"}, "Search the Docker Hub for images", true) noTrunc := cmd.Bool([]string{"#notrunc", "-no-trunc"}, false, "Don't truncate output") trusted := cmd.Bool([]string{"#t", "#trusted", "#-trusted"}, false, "Only show trusted builds") automated := cmd.Bool([]string{"-automated"}, false, "Only show automated builds") stars := cmd.Uint([]string{"s", "#stars", "-stars"}, 0, "Only displays with at least x stars") cmd.Require(flag.Exact, 1) cmd.ParseFlags(args, true) name := cmd.Arg(0) v := url.Values{} v.Set("term", name) // Resolve the Repository name from fqn to hostname + name taglessRemote, _ := parsers.ParseRepositoryTag(name) repoInfo, err := registry.ParseRepositoryInfo(taglessRemote) if err != nil { return err } rdr, _, err := cli.clientRequestAttemptLogin("GET", "/images/search?"+v.Encode(), nil, nil, repoInfo.Index, "search") if err != nil { return err } defer rdr.Close() results := ByStars{} if err := json.NewDecoder(rdr).Decode(&results); err != nil { return err } sort.Sort(sort.Reverse(results)) w := tabwriter.NewWriter(cli.out, 10, 1, 3, ' ', 0) fmt.Fprintf(w, "NAME\tDESCRIPTION\tSTARS\tOFFICIAL\tAUTOMATED\n") for _, res := range results { if ((*automated || *trusted) && (!res.IsTrusted && !res.IsAutomated)) || (int(*stars) > res.StarCount) { continue } desc := strings.Replace(res.Description, "\n", " ", -1) desc = strings.Replace(desc, "\r", " ", -1) if !*noTrunc && len(desc) > 45 { desc = stringutils.Truncate(desc, 42) + "..." } fmt.Fprintf(w, "%s\t%s\t%d\t", res.Name, desc, res.StarCount) if res.IsOfficial { fmt.Fprint(w, "[OK]") } fmt.Fprint(w, "\t") if res.IsAutomated || res.IsTrusted { fmt.Fprint(w, "[OK]") } fmt.Fprint(w, "\n") } w.Flush() return nil }