refactor: make command accessible in option parser (#1315)

Signed-off-by: Xiaoxuan Wang <wangxiaoxuan119@gmail.com>

cmd/oras/internal/option/common.go

@@ -20,6 +20,7 @@ import (
 	"os"
 
 	"github.com/sirupsen/logrus"
+	"github.com/spf13/cobra"
 	"github.com/spf13/pflag"
 	"golang.org/x/term"
 	"oras.land/oras/internal/trace"
@@ -49,7 +50,7 @@ func (opts *Common) WithContext(ctx context.Context) (context.Context, logrus.Fi
 }
 
 // Parse gets target options from user input.
-func (opts *Common) Parse() error {
+func (opts *Common) Parse(*cobra.Command) error {
 	// use STDERR as TTY output since STDOUT is reserved for pipeable output
 	return opts.parseTTY(os.Stderr)
 }

cmd/oras/internal/option/packer.go

@@ -25,6 +25,7 @@ import (
 	"strings"
 
 	ocispec "github.com/opencontainers/image-spec/specs-go/v1"
+	"github.com/spf13/cobra"
 	"github.com/spf13/pflag"
 	"oras.land/oras-go/v2/content"
 	oerrors "oras.land/oras/cmd/oras/internal/errors"
@@ -73,7 +74,7 @@ func (opts *Packer) ExportManifest(ctx context.Context, fetcher content.Fetcher,
 	}
 	return os.WriteFile(opts.ManifestExportPath, manifestBytes, 0666)
 }
-func (opts *Packer) Parse() error {
+func (opts *Packer) Parse(*cobra.Command) error {
 	if !opts.PathValidationDisabled {
 		var failedPaths []string
 		for _, path := range opts.FileRefs {

cmd/oras/internal/option/parser.go

@@ -17,18 +17,20 @@ package option
 
 import (
 	"reflect"
+
+	"github.com/spf13/cobra"
 )
 
 // FlagParser parses flags in an option.
 type FlagParser interface {
-	Parse() error
+	Parse(cmd *cobra.Command) error
 }
 
 // Parse parses applicable fields of the passed-in option pointer and returns
 // error during parsing.
-func Parse(optsPtr interface{}) error {
+func Parse(cmd *cobra.Command, optsPtr interface{}) error {
 	return rangeFields(optsPtr, func(fp FlagParser) error {
-		return fp.Parse()
+		return fp.Parse(cmd)
 	})
 }
 

cmd/oras/internal/option/parser_test.go

@@ -19,14 +19,15 @@ import (
 	"errors"
 	"testing"
 
+	"github.com/spf13/cobra"
 	"oras.land/oras/cmd/oras/internal/option"
 )
 
 type Test struct {
 	CntPtr *int
 }
 
-func (t *Test) Parse() error {
+func (t *Test) Parse(cmd *cobra.Command) error {
 	*t.CntPtr += 1
 	if *t.CntPtr == 2 {
 		return errors.New("should not be tried twice")
@@ -48,7 +49,7 @@ func TestParse_once(t *testing.T) {
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
-			if err := option.Parse(&tt.args); (err != nil) != tt.wantErr {
+			if err := option.Parse(nil, &tt.args); (err != nil) != tt.wantErr {
 				t.Errorf("Parse() error = %v, wantErr %v", err, tt.wantErr)
 			}
 
@@ -76,7 +77,7 @@ func TestParse_err(t *testing.T) {
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
-			if err := option.Parse(&tt.args); (err != nil) != tt.wantErr {
+			if err := option.Parse(nil, &tt.args); (err != nil) != tt.wantErr {
 				t.Errorf("Parse() error = %v, wantErr %v", err, tt.wantErr)
 			}
 

cmd/oras/internal/option/platform.go

@@ -21,6 +21,7 @@ import (
 	"strings"
 
 	ocispec "github.com/opencontainers/image-spec/specs-go/v1"
+	"github.com/spf13/cobra"
 	"github.com/spf13/pflag"
 )
 
@@ -36,7 +37,7 @@ func (opts *Platform) ApplyFlags(fs *pflag.FlagSet) {
 }
 
 // parse parses the input platform flag to an oci platform type.
-func (opts *Platform) Parse() error {
+func (opts *Platform) Parse(*cobra.Command) error {
 	if opts.platform == "" {
 		return nil
 	}

cmd/oras/internal/option/platform_test.go

@@ -43,7 +43,7 @@ func TestPlatform_Parse_err(t *testing.T) {
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
-			err := tt.opts.Parse()
+			err := tt.opts.Parse(nil)
 			if err == nil {
 				t.Errorf("Platform.Parse() error = %v, wantErr %v", err, true)
 				return
@@ -68,7 +68,7 @@ func TestPlatform_Parse(t *testing.T) {
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
-			if err := tt.opts.Parse(); err != nil {
+			if err := tt.opts.Parse(nil); err != nil {
 				t.Errorf("Platform.Parse() error = %v", err)
 			}
 			got := tt.opts.Platform

cmd/oras/internal/option/remote.go

@@ -117,7 +117,7 @@ func (opts *Remote) ApplyFlagsWithPrefix(fs *pflag.FlagSet, prefix, description
 }
 
 // Parse tries to read password with optional cmd prompt.
-func (opts *Remote) Parse() error {
+func (opts *Remote) Parse(*cobra.Command) error {
 	if err := opts.parseCustomHeaders(); err != nil {
 		return err
 	}

cmd/oras/internal/option/target.go

@@ -95,7 +95,7 @@ func (opts *Target) ApplyFlagsWithPrefix(fs *pflag.FlagSet, prefix, description
 }
 
 // Parse gets target options from user input.
-func (opts *Target) Parse() error {
+func (opts *Target) Parse(cmd *cobra.Command) error {
 	switch {
 	case opts.IsOCILayout:
 		opts.Type = TargetTypeOCILayout
@@ -111,7 +111,7 @@ func (opts *Target) Parse() error {
 				Recommendation: "Please make sure the provided reference is in the form of <registry>/<repo>[:tag|@digest]",
 			}
 		}
-		return opts.Remote.Parse()
+		return opts.Remote.Parse(cmd)
 	}
 }
 
@@ -330,13 +330,13 @@ func (opts *BinaryTarget) ApplyFlags(fs *pflag.FlagSet) {
 }
 
 // Parse parses user-provided flags and arguments into option struct.
-func (opts *BinaryTarget) Parse() error {
+func (opts *BinaryTarget) Parse(cmd *cobra.Command) error {
 	opts.From.warned = make(map[string]*sync.Map)
 	opts.To.warned = opts.From.warned
 	// resolve are parsed in array order, latter will overwrite former
 	opts.From.resolveFlag = append(opts.resolveFlag, opts.From.resolveFlag...)
 	opts.To.resolveFlag = append(opts.resolveFlag, opts.To.resolveFlag...)
-	return Parse(opts)
+	return Parse(cmd, opts)
 }
 
 // Modify handles error during cmd execution.

cmd/oras/internal/option/target_test.go

@@ -30,7 +30,7 @@ import (
 
 func TestTarget_Parse_oci(t *testing.T) {
 	opts := Target{IsOCILayout: true}
-	err := opts.Parse()
+	err := opts.Parse(nil)
 	if !errors.Is(err, errdef.ErrInvalidReference) {
 		t.Errorf("Target.Parse() error = %v, expect %v", err, errdef.ErrInvalidReference)
 	}
@@ -44,7 +44,7 @@ func TestTarget_Parse_remote(t *testing.T) {
 		RawReference: "mocked/test",
 		IsOCILayout:  false,
 	}
-	if err := opts.Parse(); err != nil {
+	if err := opts.Parse(nil); err != nil {
 		t.Errorf("Target.Parse() error = %v", err)
 	}
 	if opts.Type != TargetTypeRemote {
@@ -57,7 +57,7 @@ func TestTarget_Parse_remote_err(t *testing.T) {
 		RawReference: "/test",
 		IsOCILayout:  false,
 	}
-	if err := opts.Parse(); err == nil {
+	if err := opts.Parse(nil); err == nil {
 		t.Errorf("expect Target.Parse() to fail but not")
 	}
 }

cmd/oras/root/attach.go

@@ -82,7 +82,7 @@ Example - Attach file to the manifest tagged 'v1' in an OCI image layout folder
 		PreRunE: func(cmd *cobra.Command, args []string) error {
 			opts.RawReference = args[0]
 			opts.FileRefs = args[1:]
-			if err := option.Parse(&opts); err != nil {
+			if err := option.Parse(cmd, &opts); err != nil {
 				return err
 			}
 			return nil

cmd/oras/root/blob/delete.go

@@ -60,7 +60,7 @@ Example - Delete a blob and print its descriptor:
 			if opts.OutputDescriptor && !opts.Force {
 				return errors.New("must apply --force to confirm the deletion if the descriptor is outputted")
 			}
-			return option.Parse(&opts)
+			return option.Parse(cmd, &opts)
 		},
 		RunE: func(cmd *cobra.Command, args []string) error {
 			return deleteBlob(cmd, &opts)

cmd/oras/root/blob/fetch.go

@@ -77,7 +77,7 @@ Example - Fetch and print a blob from OCI image layout archive file 'layout.tar'
 				return errors.New("`--output -` cannot be used with `--descriptor` at the same time")
 			}
 			opts.RawReference = args[0]
-			err := option.Parse(&opts)
+			err := option.Parse(cmd, &opts)
 			if err == nil {
 				opts.UpdateTTY(cmd.Flags().Changed(option.NoTTYFlag), opts.outputPath == "-")
 			}

cmd/oras/root/blob/push.go

@@ -87,7 +87,7 @@ Example - Push blob 'hi.txt' into an OCI image layout folder 'layout-dir':
 					return errors.New("`--size` must be provided if the blob is read from stdin")
 				}
 			}
-			return option.Parse(&opts)
+			return option.Parse(cmd, &opts)
 		},
 		RunE: func(cmd *cobra.Command, args []string) error {
 			return pushBlob(cmd, &opts)

cmd/oras/root/cp.go

@@ -93,7 +93,7 @@ Example - Copy an artifact with multiple tags with concurrency tuned:
 			refs := strings.Split(args[1], ",")
 			opts.To.RawReference = refs[0]
 			opts.extraRefs = refs[1:]
-			return option.Parse(&opts)
+			return option.Parse(cmd, &opts)
 		},
 		RunE: func(cmd *cobra.Command, args []string) error {
 			return runCopy(cmd, &opts)

cmd/oras/root/discover.go

@@ -79,7 +79,7 @@ Example - Discover referrers of the manifest tagged 'v1' in an OCI image layout
 		Args: oerrors.CheckArgs(argument.Exactly(1), "the target artifact to discover referrers from"),
 		PreRunE: func(cmd *cobra.Command, args []string) error {
 			opts.RawReference = args[0]
-			return option.Parse(&opts)
+			return option.Parse(cmd, &opts)
 		},
 		RunE: func(cmd *cobra.Command, args []string) error {
 			return runDiscover(cmd, &opts)

cmd/oras/root/login.go

@@ -65,7 +65,7 @@ Example - Log in with username and password in an interactive terminal and no TL
 `,
 		Args: oerrors.CheckArgs(argument.Exactly(1), "the registry to log in to"),
 		PreRunE: func(cmd *cobra.Command, args []string) error {
-			return option.Parse(&opts)
+			return option.Parse(cmd, &opts)
 		},
 		RunE: func(cmd *cobra.Command, args []string) error {
 			opts.Hostname = args[0]

cmd/oras/root/manifest/delete.go

@@ -63,7 +63,7 @@ Example - Delete a manifest by digest 'sha256:99e4703fbf30916f549cd6bfa9cdbab614
 			if opts.OutputDescriptor && !opts.Force {
 				return errors.New("must apply --force to confirm the deletion if the descriptor is outputted")
 			}
-			return option.Parse(&opts)
+			return option.Parse(cmd, &opts)
 		},
 		RunE: func(cmd *cobra.Command, args []string) error {
 			return deleteManifest(cmd, &opts)

cmd/oras/root/manifest/fetch.go

@@ -76,7 +76,7 @@ Example - Fetch raw manifest from an OCI layout archive file 'layout.tar':
 				return errors.New("`--output -` cannot be used with `--descriptor` at the same time")
 			}
 			opts.RawReference = args[0]
-			return option.Parse(&opts)
+			return option.Parse(cmd, &opts)
 		},
 		Aliases: []string{"get"},
 		RunE: func(cmd *cobra.Command, args []string) error {

cmd/oras/root/manifest/fetch_config.go

@@ -75,7 +75,7 @@ Example - Fetch and print the prettified descriptor of the config:
 				return errors.New("`--output -` cannot be used with `--descriptor` at the same time")
 			}
 			opts.RawReference = args[0]
-			return option.Parse(&opts)
+			return option.Parse(cmd, &opts)
 		},
 		RunE: func(cmd *cobra.Command, args []string) error {
 			return fetchConfig(cmd, &opts)

cmd/oras/root/manifest/push.go

@@ -92,7 +92,7 @@ Example - Push a manifest to an OCI image layout folder 'layout-dir' and tag wit
 			refs := strings.Split(args[0], ",")
 			opts.RawReference = refs[0]
 			opts.extraRefs = refs[1:]
-			return option.Parse(&opts)
+			return option.Parse(cmd, &opts)
 		},
 		RunE: func(cmd *cobra.Command, args []string) error {
 			return pushManifest(cmd, opts)

cmd/oras/root/pull.go

@@ -90,7 +90,7 @@ Example - Pull artifact files from an OCI layout archive 'layout.tar':
 		Args: oerrors.CheckArgs(argument.Exactly(1), "the artifact reference you want to pull"),
 		PreRunE: func(cmd *cobra.Command, args []string) error {
 			opts.RawReference = args[0]
-			return option.Parse(&opts)
+			return option.Parse(cmd, &opts)
 		},
 		RunE: func(cmd *cobra.Command, args []string) error {
 			return runPull(cmd, &opts)

cmd/oras/root/push.go

@@ -105,7 +105,7 @@ Example - Push file "hi.txt" into an OCI image layout folder 'layout-dir' with t
 			opts.RawReference = refs[0]
 			opts.extraRefs = refs[1:]
 			opts.FileRefs = args[1:]
-			if err := option.Parse(&opts); err != nil {
+			if err := option.Parse(cmd, &opts); err != nil {
 				return err
 			}
 			switch opts.PackVersion {

cmd/oras/root/repo/ls.go

@@ -54,7 +54,7 @@ Example - List the repositories under the registry that include values lexically
 		Args:    oerrors.CheckArgs(argument.Exactly(1), "the target registry to list repositories from"),
 		Aliases: []string{"list"},
 		PreRunE: func(cmd *cobra.Command, args []string) error {
-			return option.Parse(&opts)
+			return option.Parse(cmd, &opts)
 		},
 		RunE: func(cmd *cobra.Command, args []string) error {
 			var err error

cmd/oras/root/repo/tags.go

@@ -66,7 +66,7 @@ Example - [Experimental] Show tags associated with a digest:
 		Aliases: []string{"show-tags"},
 		PreRunE: func(cmd *cobra.Command, args []string) error {
 			opts.RawReference = args[0]
-			return option.Parse(&opts)
+			return option.Parse(cmd, &opts)
 		},
 		RunE: func(cmd *cobra.Command, args []string) error {
 			return showTags(cmd, &opts)

cmd/oras/root/resolve.go

@@ -48,7 +48,7 @@ Example - Resolve digest of the target artifact:
 		Aliases: []string{"digest"},
 		PreRunE: func(cmd *cobra.Command, args []string) error {
 			opts.RawReference = args[0]
-			return option.Parse(&opts)
+			return option.Parse(cmd, &opts)
 		},
 		RunE: func(cmd *cobra.Command, args []string) error {
 			return runResolve(cmd, &opts)

cmd/oras/root/tag.go

@@ -75,7 +75,7 @@ Example - Tag the manifest 'v1.0.1' to 'v1.0.2' in an OCI image layout folder 'l
 		PreRunE: func(cmd *cobra.Command, args []string) error {
 			opts.RawReference = args[0]
 			opts.targetRefs = args[1:]
-			if err := option.Parse(&opts); err != nil {
+			if err := option.Parse(cmd, &opts); err != nil {
 				if inner, ok := err.(*oerrors.Error); ok {
 					if errors.Is(inner, errdef.ErrInvalidReference) {
 						inner.Err = fmt.Errorf("unable to add tag for '%s': %w", opts.RawReference, inner.Err)