[28.x backport] remove special handling for plugin errors and Windows warning on Build

cli/command/image/build.go

@@ -10,7 +10,6 @@ import (
 	"io"
 	"os"
 	"path/filepath"
-	"runtime"
 	"strings"
 
 	"github.com/distribution/reference"
@@ -385,16 +384,6 @@ func runBuild(ctx context.Context, dockerCli command.Cli, options buildOptions)
 		return err
 	}
 
-	// Windows: show error message about modified file permissions if the
-	// daemon isn't running Windows.
-	if response.OSType != "windows" && runtime.GOOS == "windows" && !options.quiet {
-		_, _ = fmt.Fprintln(dockerCli.Out(), "SECURITY WARNING: You are building a Docker "+
-			"image from Windows against a non-Windows Docker host. All files and "+
-			"directories added to build context will have '-rwxr-xr-x' permissions. "+
-			"It is recommended to double check and reset permissions for sensitive "+
-			"files and directories.")
-	}
-
 	// Everything worked so if -q was provided the output from the daemon
 	// should be just the image ID and we'll print that to stdout.
 	if options.quiet {

cli/command/image/pull.go

@@ -2,15 +2,14 @@ package image
 
 import (
 	"context"
+	"errors"
 	"fmt"
-	"strings"
 
 	"github.com/distribution/reference"
 	"github.com/docker/cli/cli"
 	"github.com/docker/cli/cli/command"
 	"github.com/docker/cli/cli/command/completion"
 	"github.com/docker/cli/cli/trust"
-	"github.com/pkg/errors"
 	"github.com/spf13/cobra"
 )
 
@@ -87,15 +86,13 @@ func runPull(ctx context.Context, dockerCLI command.Cli, opts pullOptions) error
 	// Check if reference has a digest
 	_, isCanonical := distributionRef.(reference.Canonical)
 	if !opts.untrusted && !isCanonical {
-		err = trustedPull(ctx, dockerCLI, imgRefAndAuth, opts)
+		if err := trustedPull(ctx, dockerCLI, imgRefAndAuth, opts); err != nil {
+			return err
+		}
 	} else {
-		err = imagePullPrivileged(ctx, dockerCLI, imgRefAndAuth, opts)
-	}
-	if err != nil {
-		if strings.Contains(err.Error(), "when fetching 'plugin'") {
-			return errors.New(err.Error() + " - Use `docker plugin install`")
+		if err := imagePullPrivileged(ctx, dockerCLI, imgRefAndAuth, opts); err != nil {
+			return err
 		}
-		return err
 	}
 	_, _ = fmt.Fprintln(dockerCLI.Out(), imgRefAndAuth.Reference().String())
 	return nil

cli/command/plugin/install.go

@@ -3,7 +3,6 @@ package plugin
 import (
 	"context"
 	"fmt"
-	"strings"
 
 	"github.com/distribution/reference"
 	"github.com/docker/cli/cli"
@@ -120,9 +119,6 @@ func runInstall(ctx context.Context, dockerCLI command.Cli, opts pluginOptions)
 	}
 	responseBody, err := dockerCLI.Client().PluginInstall(ctx, localName, options)
 	if err != nil {
-		if strings.Contains(err.Error(), "(image) when fetching") {
-			return errors.New(err.Error() + " - Use \"docker image pull\"")
-		}
 		return err
 	}
 	defer func() {

cli/command/plugin/install_test.go

@@ -43,14 +43,6 @@ func TestInstallErrors(t *testing.T) {
 				return nil, errors.New("error installing plugin")
 			},
 		},
-		{
-			description:   "installation error due to missing image",
-			args:          []string{"foo"},
-			expectedError: "docker image pull",
-			installFunc: func(name string, options types.PluginInstallOptions) (io.ReadCloser, error) {
-				return nil, errors.New("(image) when fetching")
-			},
-		},
 	}
 
 	for _, tc := range testCases {

cli/command/plugin/upgrade.go

@@ -3,7 +3,6 @@ package plugin
 import (
 	"context"
 	"fmt"
-	"strings"
 
 	"github.com/distribution/reference"
 	"github.com/docker/cli/cli"
@@ -80,9 +79,6 @@ func runUpgrade(ctx context.Context, dockerCLI command.Cli, opts pluginOptions)
 
 	responseBody, err := dockerCLI.Client().PluginUpgrade(ctx, opts.localName, options)
 	if err != nil {
-		if strings.Contains(err.Error(), "target is image") {
-			return errors.New(err.Error() + " - Use `docker image pull`")
-		}
 		return err
 	}
 	defer func() {