refactor(cli): added equivalent subcommands for each flag combination under every command (#1674)

- image command is now deprecated in favor of 'images'
- cve command is now deprecated in favor of 'cves'

Signed-off-by: Laurentiu Niculae <niculae.laurentiu1@gmail.com>

pkg/cli/search_sub_cmd.go

@@ -0,0 +1,109 @@
+//go:build search
+// +build search
+
+package cli
+
+import (
+	"fmt"
+
+	godigest "github.com/opencontainers/go-digest"
+	"github.com/spf13/cobra"
+
+	zerr "zotregistry.io/zot/errors"
+	zcommon "zotregistry.io/zot/pkg/common"
+)
+
+func NewSearchSubjectCommand(searchService SearchService) *cobra.Command {
+	imageCmd := &cobra.Command{
+		Use:   "subject [repo:tag]|[repo@digest]",
+		Short: "List all referrers for this subject.",
+		Long: `List all referrers for this subject. The subject can be specified by tag(repo:tag) or by digest" +
+			"(repo@digest)`,
+		Example: `# For referrers search specify the referred subject using it's full digest or tag:
+  zli search subject "repo@sha256:f9a0981..."
+  zli search subject "repo:tag"`,
+		Args: OneImageWithRefArg,
+		RunE: func(cmd *cobra.Command, args []string) error {
+			searchConfig, err := GetSearchConfigFromFlags(cmd, searchService)
+			if err != nil {
+				return err
+			}
+
+			if err := CheckExtEndPointQuery(searchConfig, ReferrersQuery()); err == nil {
+				return SearchReferrersGQL(searchConfig, args[0])
+			} else {
+				return SearchReferrers(searchConfig, args[0])
+			}
+		},
+	}
+
+	return imageCmd
+}
+
+func NewSearchQueryCommand(searchService SearchService) *cobra.Command {
+	imageCmd := &cobra.Command{
+		Use:   "query",
+		Short: "Fuzzy search for repos and their tags.",
+		Long:  "Fuzzy search for repos and their tags.",
+		Example: `# For repo search specify a substring of the repo name without the tag
+  zli search query "test/repo"
+	  
+# For image search specify the full repo name followed by the tag or a prefix of the tag.
+  zli search query "test/repo:2.1."
+
+# To search all tags in all repos.
+  zli search query ":"`,
+		Args: cobra.ExactArgs(1),
+		RunE: func(cmd *cobra.Command, args []string) error {
+			searchConfig, err := GetSearchConfigFromFlags(cmd, searchService)
+			if err != nil {
+				return err
+			}
+
+			// special format for searching all images and tags
+			if args[0] == ":" {
+				err := CheckExtEndPointQuery(searchConfig, GlobalSearchQuery())
+				if err != nil {
+					return fmt.Errorf("%w: '%s'", err, ImageListQuery().Name)
+				}
+
+				return SearchAllImagesGQL(searchConfig)
+			}
+
+			if err := CheckExtEndPointQuery(searchConfig, GlobalSearchQuery()); err != nil {
+				return fmt.Errorf("%w: '%s'", err, CVEListForImageQuery().Name)
+			}
+
+			return GlobalSearchGQL(searchConfig, args[0])
+		},
+	}
+
+	return imageCmd
+}
+
+func OneImageWithRefArg(cmd *cobra.Command, args []string) error {
+	if err := cobra.ExactArgs(1)(cmd, args); err != nil {
+		return err
+	}
+
+	image := args[0]
+
+	if dir, ref, _ := zcommon.GetImageDirAndReference(image); dir == "" || ref == "" {
+		return zerr.ErrInvalidRepoRefFormat
+	}
+
+	return nil
+}
+
+func OneDigestArg(cmd *cobra.Command, args []string) error {
+	if err := cobra.ExactArgs(1)(cmd, args); err != nil {
+		return err
+	}
+
+	digest := args[0]
+	if _, err := godigest.Parse(digest); err != nil {
+		return err
+	}
+
+	return nil
+}