github.com/guilhermebr/docker@v1.4.2-0.20150428121140-67da055cebca/api/client/search.go (about)

     1  package client
     2  
     3  import (
     4  	"encoding/json"
     5  	"fmt"
     6  	"net/url"
     7  	"sort"
     8  	"strings"
     9  	"text/tabwriter"
    10  
    11  	flag "github.com/docker/docker/pkg/mflag"
    12  	"github.com/docker/docker/pkg/parsers"
    13  	"github.com/docker/docker/pkg/stringutils"
    14  	"github.com/docker/docker/registry"
    15  )
    16  
    17  // ByStars sorts search results in ascending order by number of stars.
    18  type ByStars []registry.SearchResult
    19  
    20  func (r ByStars) Len() int           { return len(r) }
    21  func (r ByStars) Swap(i, j int)      { r[i], r[j] = r[j], r[i] }
    22  func (r ByStars) Less(i, j int) bool { return r[i].StarCount < r[j].StarCount }
    23  
    24  // CmdSearch searches the Docker Hub for images.
    25  //
    26  // Usage: docker search [OPTIONS] TERM
    27  func (cli *DockerCli) CmdSearch(args ...string) error {
    28  	cmd := cli.Subcmd("search", "TERM", "Search the Docker Hub for images", true)
    29  	noTrunc := cmd.Bool([]string{"#notrunc", "-no-trunc"}, false, "Don't truncate output")
    30  	trusted := cmd.Bool([]string{"#t", "#trusted", "#-trusted"}, false, "Only show trusted builds")
    31  	automated := cmd.Bool([]string{"-automated"}, false, "Only show automated builds")
    32  	stars := cmd.Uint([]string{"s", "#stars", "-stars"}, 0, "Only displays with at least x stars")
    33  	cmd.Require(flag.Exact, 1)
    34  
    35  	cmd.ParseFlags(args, true)
    36  
    37  	name := cmd.Arg(0)
    38  	v := url.Values{}
    39  	v.Set("term", name)
    40  
    41  	// Resolve the Repository name from fqn to hostname + name
    42  	taglessRemote, _ := parsers.ParseRepositoryTag(name)
    43  	repoInfo, err := registry.ParseRepositoryInfo(taglessRemote)
    44  	if err != nil {
    45  		return err
    46  	}
    47  
    48  	rdr, _, err := cli.clientRequestAttemptLogin("GET", "/images/search?"+v.Encode(), nil, nil, repoInfo.Index, "search")
    49  	if err != nil {
    50  		return err
    51  	}
    52  
    53  	results := ByStars{}
    54  	if err := json.NewDecoder(rdr).Decode(&results); err != nil {
    55  		return err
    56  	}
    57  
    58  	sort.Sort(sort.Reverse(results))
    59  
    60  	w := tabwriter.NewWriter(cli.out, 10, 1, 3, ' ', 0)
    61  	fmt.Fprintf(w, "NAME\tDESCRIPTION\tSTARS\tOFFICIAL\tAUTOMATED\n")
    62  	for _, res := range results {
    63  		if ((*automated || *trusted) && (!res.IsTrusted && !res.IsAutomated)) || (int(*stars) > res.StarCount) {
    64  			continue
    65  		}
    66  		desc := strings.Replace(res.Description, "\n", " ", -1)
    67  		desc = strings.Replace(desc, "\r", " ", -1)
    68  		if !*noTrunc && len(desc) > 45 {
    69  			desc = stringutils.Truncate(desc, 42) + "..."
    70  		}
    71  		fmt.Fprintf(w, "%s\t%s\t%d\t", res.Name, desc, res.StarCount)
    72  		if res.IsOfficial {
    73  			fmt.Fprint(w, "[OK]")
    74  
    75  		}
    76  		fmt.Fprint(w, "\t")
    77  		if res.IsAutomated || res.IsTrusted {
    78  			fmt.Fprint(w, "[OK]")
    79  		}
    80  		fmt.Fprint(w, "\n")
    81  	}
    82  	w.Flush()
    83  	return nil
    84  }