Refactor podman search to be more code friendly

* JSON and API description fields are no longer truncated. Formatting
  moved to client, better support of MVP.
* --no-trunc now defaults to true
* Updated tests for changes

Closes #11894

Signed-off-by: Jhon Honce <jhonce@redhat.com>

cmd/podman/images/search.go

@@ -3,6 +3,7 @@ package images
 import (
 	"fmt"
 	"os"
+	"strings"
 
 	"github.com/containers/common/pkg/auth"
 	"github.com/containers/common/pkg/completion"
@@ -79,7 +80,7 @@ func searchFlags(cmd *cobra.Command) {
 
 	filterFlagName := "filter"
 	flags.StringSliceVarP(&searchOptions.Filters, filterFlagName, "f", []string{}, "Filter output based on conditions provided (default [])")
-	//TODO add custom filter function
+	// TODO add custom filter function
 	_ = cmd.RegisterFlagCompletionFunc(filterFlagName, completion.AutocompleteNone)
 
 	formatFlagName := "format"
@@ -90,7 +91,7 @@ func searchFlags(cmd *cobra.Command) {
 	flags.IntVar(&searchOptions.Limit, limitFlagName, 0, "Limit the number of results")
 	_ = cmd.RegisterFlagCompletionFunc(limitFlagName, completion.AutocompleteNone)
 
-	flags.BoolVar(&searchOptions.NoTrunc, "no-trunc", false, "Do not truncate the output")
+	flags.Bool("no-trunc", true, "Do not truncate the output. Default: true")
 
 	authfileFlagName := "authfile"
 	flags.StringVar(&searchOptions.Authfile, authfileFlagName, auth.GetDefaultAuthFile(), "Path of the authentication file. Use REGISTRY_AUTH_FILE environment variable to override")
@@ -132,11 +133,20 @@ func imageSearch(cmd *cobra.Command, args []string) error {
 	if err != nil {
 		return err
 	}
-
 	if len(searchReport) == 0 {
 		return nil
 	}
 
+	noTrunc, _ := cmd.Flags().GetBool("no-trunc")
+	isJSON := report.IsJSON(searchOptions.Format)
+	for i, element := range searchReport {
+		d := strings.ReplaceAll(element.Description, "\n", " ")
+		if len(d) > 44 && !(noTrunc || isJSON) {
+			d = strings.TrimSpace(d[:44]) + "..."
+		}
+		searchReport[i].Description = d
+	}
+
 	hdrs := report.Headers(entities.ImageSearchReport{}, nil)
 	renderHeaders := true
 	var row string
@@ -145,12 +155,12 @@ func imageSearch(cmd *cobra.Command, args []string) error {
 		if len(searchOptions.Filters) != 0 {
 			return errors.Errorf("filters are not applicable to list tags result")
 		}
-		if report.IsJSON(searchOptions.Format) {
+		if isJSON {
 			listTagsEntries := buildListTagsJSON(searchReport)
 			return printArbitraryJSON(listTagsEntries)
 		}
 		row = "{{.Name}}\t{{.Tag}}\n"
-	case report.IsJSON(searchOptions.Format):
+	case isJSON:
 		return printArbitraryJSON(searchReport)
 	case cmd.Flags().Changed("format"):
 		renderHeaders = report.HasTable(searchOptions.Format)
@@ -190,7 +200,7 @@ func printArbitraryJSON(v interface{}) error {
 }
 
 func buildListTagsJSON(searchReport []entities.ImageSearchReport) []listEntryTag {
-	entries := []listEntryTag{}
+	entries := make([]listEntryTag, 0)
 
 ReportLoop:
 	for _, report := range searchReport {

docs/source/markdown/podman-search.1.md

@@ -81,7 +81,7 @@ The result contains the Image name and its tag, one line for every tag associate
 
 #### **--no-trunc**
 
-Do not truncate the output (default *false*).
+Do not truncate the output (default *true*).
 
 #### **--tls-verify**
 

pkg/api/handlers/compat/images_search.go

@@ -22,7 +22,6 @@ func SearchImages(w http.ResponseWriter, r *http.Request) {
 	query := struct {
 		Term      string              `json:"term"`
 		Limit     int                 `json:"limit"`
-		NoTrunc   bool                `json:"noTrunc"`
 		Filters   map[string][]string `json:"filters"`
 		TLSVerify bool                `json:"tlsVerify"`
 		ListTags  bool                `json:"listTags"`
@@ -50,7 +49,6 @@ func SearchImages(w http.ResponseWriter, r *http.Request) {
 	options := entities.ImageSearchOptions{
 		Authfile: authfile,
 		Limit:    query.Limit,
-		NoTrunc:  query.NoTrunc,
 		ListTags: query.ListTags,
 		Filters:  filters,
 	}

pkg/api/server/register_images.go

@@ -1090,10 +1090,6 @@ func (s *APIServer) registerImagesHandlers(r *mux.Router) error {
 	//    default: 25
 	//    description: maximum number of results
 	//  - in: query
-	//    name: noTrunc
-	//    type: boolean
-	//    description: do not truncate any of the result strings
-	//  - in: query
 	//    name: filters
 	//    type: string
 	//    description: |

pkg/bindings/images/types.go

@@ -133,8 +133,6 @@ type SearchOptions struct {
 	Filters map[string][]string
 	// Limit the number of results.
 	Limit *int
-	// NoTrunc will not truncate the output.
-	NoTrunc *bool
 	// SkipTLSVerify to skip  HTTPS and certificate verification.
 	SkipTLSVerify *bool
 	// ListTags search the available tags of the repository

pkg/bindings/images/types_search_options.go

@@ -62,21 +62,6 @@ func (o *SearchOptions) GetLimit() int {
 	return *o.Limit
 }
 
-// WithNoTrunc set field NoTrunc to given value
-func (o *SearchOptions) WithNoTrunc(value bool) *SearchOptions {
-	o.NoTrunc = &value
-	return o
-}
-
-// GetNoTrunc returns value of field NoTrunc
-func (o *SearchOptions) GetNoTrunc() bool {
-	if o.NoTrunc == nil {
-		var z bool
-		return z
-	}
-	return *o.NoTrunc
-}
-
 // WithSkipTLSVerify set field SkipTLSVerify to given value
 func (o *SearchOptions) WithSkipTLSVerify(value bool) *SearchOptions {
 	o.SkipTLSVerify = &value

pkg/domain/entities/images.go

@@ -218,8 +218,6 @@ type ImageSearchOptions struct {
 	Filters []string
 	// Limit the number of results.
 	Limit int
-	// NoTrunc will not truncate the output.
-	NoTrunc bool
 	// SkipTLSVerify to skip  HTTPS and certificate verification.
 	SkipTLSVerify types.OptionalBool
 	// ListTags search the available tags of the repository

pkg/domain/infra/abi/images.go

@@ -417,6 +417,7 @@ func (ir *ImageEngine) Import(ctx context.Context, options entities.ImageImportO
 	return &entities.ImageImportReport{Id: imageID}, nil
 }
 
+// Search for images using term and filters
 func (ir *ImageEngine) Search(ctx context.Context, term string, opts entities.ImageSearchOptions) ([]entities.ImageSearchReport, error) {
 	filter, err := libimage.ParseSearchFilter(opts.Filters)
 	if err != nil {
@@ -427,7 +428,7 @@ func (ir *ImageEngine) Search(ctx context.Context, term string, opts entities.Im
 		Authfile:              opts.Authfile,
 		Filter:                *filter,
 		Limit:                 opts.Limit,
-		NoTrunc:               opts.NoTrunc,
+		NoTrunc:               true,
 		InsecureSkipTLSVerify: opts.SkipTLSVerify,
 		ListTags:              opts.ListTags,
 	}
@@ -454,7 +455,7 @@ func (ir *ImageEngine) Search(ctx context.Context, term string, opts entities.Im
 	return reports, nil
 }
 
-// GetConfig returns a copy of the configuration used by the runtime
+// Config returns a copy of the configuration used by the runtime
 func (ir *ImageEngine) Config(_ context.Context) (*config.Config, error) {
 	return ir.Libpod.GetConfig()
 }

pkg/domain/infra/tunnel/images.go

@@ -12,7 +12,7 @@ import (
 	"github.com/containers/common/pkg/config"
 	"github.com/containers/image/v5/docker/reference"
 	"github.com/containers/image/v5/types"
-	images "github.com/containers/podman/v3/pkg/bindings/images"
+	"github.com/containers/podman/v3/pkg/bindings/images"
 	"github.com/containers/podman/v3/pkg/domain/entities"
 	"github.com/containers/podman/v3/pkg/domain/entities/reports"
 	"github.com/containers/podman/v3/pkg/domain/utils"
@@ -323,7 +323,7 @@ func (ir *ImageEngine) Search(ctx context.Context, term string, opts entities.Im
 
 	options := new(images.SearchOptions)
 	options.WithAuthfile(opts.Authfile).WithFilters(mappedFilters).WithLimit(opts.Limit)
-	options.WithListTags(opts.ListTags).WithNoTrunc(opts.NoTrunc)
+	options.WithListTags(opts.ListTags)
 	if s := opts.SkipTLSVerify; s != types.OptionalBoolUndefined {
 		if s == types.OptionalBoolTrue {
 			options.WithSkipTLSVerify(true)

test/e2e/search_test.go

@@ -2,6 +2,7 @@ package integration
 
 import (
 	"bytes"
+	"encoding/json"
 	"fmt"
 	"io/ioutil"
 	"os"
@@ -9,6 +10,7 @@ import (
 	"strconv"
 	"text/template"
 
+	"github.com/containers/podman/v3/pkg/domain/entities"
 	. "github.com/containers/podman/v3/test/utils"
 	. "github.com/onsi/ginkgo"
 	. "github.com/onsi/gomega"
@@ -123,6 +125,15 @@ registries = ['{{.Host}}:{{.Port}}']`
 		Expect(search).Should(Exit(0))
 		Expect(search.IsJSONOutputValid()).To(BeTrue())
 		Expect(search.OutputToString()).To(ContainSubstring("docker.io/library/alpine"))
+
+		// Test for https://github.com/containers/podman/issues/11894
+		contents := make([]entities.ImageSearchReport, 0)
+		err := json.Unmarshal(search.Out.Contents(), &contents)
+		Expect(err).ToNot(HaveOccurred())
+		Expect(len(contents)).To(BeNumerically(">", 0), "No results from image search")
+		for _, element := range contents {
+			Expect(element.Description).ToNot(HaveSuffix("..."))
+		}
 	})
 
 	It("podman search format json list tags", func() {
@@ -135,13 +146,17 @@ registries = ['{{.Host}}:{{.Port}}']`
 		Expect(search.OutputToString()).To(ContainSubstring("2.7"))
 	})
 
-	It("podman search no-trunc flag", func() {
+	// Test for https://github.com/containers/podman/issues/11894
-		search := podmanTest.Podman([]string{"search", "--no-trunc", "alpine"})
+	It("podman search no-trunc=false flag", func() {
+		search := podmanTest.Podman([]string{"search", "--no-trunc=false", "alpine", "--format={{.Description}}"})
 		search.WaitWithDefaultTimeout()
 		Expect(search).Should(Exit(0))
-		Expect(len(search.OutputToStringArray())).To(BeNumerically(">", 1))
+
-		Expect(search.LineInOutputContains("docker.io/library/alpine")).To(BeTrue())
+		for _, line := range search.OutputToStringArray() {
-		Expect(search.LineInOutputContains("...")).To(BeFalse())
+			if len(line) > 44 {
+				Expect(line).To(HaveSuffix("..."), line+" should have been truncated")
+			}
+		}
 	})
 
 	It("podman search limit flag", func() {