cli/command/container: remove deprecated io/ioutil

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

cli/command/container/attach_test.go

@@ -2,7 +2,7 @@ package container
 
 import (
 	"fmt"
-	"io/ioutil"
+	"io"
 	"testing"
 
 	"github.com/docker/cli/cli"
@@ -71,7 +71,7 @@ func TestNewAttachCommandErrors(t *testing.T) {
 	}
 	for _, tc := range testCases {
 		cmd := NewAttachCommand(test.NewFakeCli(&fakeClient{inspectFunc: tc.containerInspectFunc}))
-		cmd.SetOut(ioutil.Discard)
+		cmd.SetOut(io.Discard)
 		cmd.SetArgs(tc.args)
 		assert.ErrorContains(t, cmd.Execute(), tc.expectedError)
 	}

cli/command/container/cp_test.go

@@ -2,7 +2,6 @@ package container
 
 import (
 	"io"
-	"io/ioutil"
 	"os"
 	"runtime"
 	"strings"
@@ -54,7 +53,7 @@ func TestRunCopyFromContainerToStdout(t *testing.T) {
 	fakeClient := &fakeClient{
 		containerCopyFromFunc: func(container, srcPath string) (io.ReadCloser, types.ContainerPathStat, error) {
 			assert.Check(t, is.Equal("container", container))
-			return ioutil.NopCloser(strings.NewReader(tarContent)), types.ContainerPathStat{}, nil
+			return io.NopCloser(strings.NewReader(tarContent)), types.ContainerPathStat{}, nil
 		},
 	}
 	options := copyOptions{source: "container:/path", destination: "-"}
@@ -84,7 +83,7 @@ func TestRunCopyFromContainerToFilesystem(t *testing.T) {
 	assert.Check(t, is.Equal("", cli.OutBuffer().String()))
 	assert.Check(t, is.Equal("", cli.ErrBuffer().String()))
 
-	content, err := ioutil.ReadFile(destDir.Join("file1"))
+	content, err := os.ReadFile(destDir.Join("file1"))
 	assert.NilError(t, err)
 	assert.Check(t, is.Equal("content\n", string(content)))
 }

cli/command/container/create_test.go

@@ -4,7 +4,6 @@ import (
 	"context"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"os"
 	"runtime"
 	"sort"
@@ -67,7 +66,7 @@ func TestCIDFileCloseWithWrite(t *testing.T) {
 	content := "id"
 	assert.NilError(t, file.Write(content))
 
-	actual, err := ioutil.ReadFile(path)
+	actual, err := os.ReadFile(path)
 	assert.NilError(t, err)
 	assert.Check(t, is.Equal(content, string(actual)))
 
@@ -130,7 +129,7 @@ func TestCreateContainerImagePullPolicy(t *testing.T) {
 			},
 			imageCreateFunc: func(parentReference string, options types.ImageCreateOptions) (io.ReadCloser, error) {
 				defer func() { pullCounter++ }()
-				return ioutil.NopCloser(strings.NewReader("")), nil
+				return io.NopCloser(strings.NewReader("")), nil
 			},
 			infoFunc: func() (types.Info, error) {
 				return types.Info{IndexServerAddress: "https://indexserver.example.com"}, nil
@@ -194,7 +193,7 @@ func TestNewCreateCommandWithContentTrustErrors(t *testing.T) {
 		}, test.EnableContentTrust)
 		cli.SetNotaryClient(tc.notaryFunc)
 		cmd := NewCreateCommand(cli)
-		cmd.SetOut(ioutil.Discard)
+		cmd.SetOut(io.Discard)
 		cmd.SetArgs(tc.args)
 		err := cmd.Execute()
 		assert.ErrorContains(t, err, tc.expectedError)
@@ -254,7 +253,7 @@ func TestNewCreateCommandWithWarnings(t *testing.T) {
 				},
 			})
 			cmd := NewCreateCommand(cli)
-			cmd.SetOut(ioutil.Discard)
+			cmd.SetOut(io.Discard)
 			cmd.SetArgs(tc.args)
 			err := cmd.Execute()
 			assert.NilError(t, err)
@@ -306,7 +305,7 @@ func TestCreateContainerWithProxyConfig(t *testing.T) {
 		},
 	})
 	cmd := NewCreateCommand(cli)
-	cmd.SetOut(ioutil.Discard)
+	cmd.SetOut(io.Discard)
 	cmd.SetArgs([]string{"image:tag"})
 	err := cmd.Execute()
 	assert.NilError(t, err)

cli/command/container/exec_test.go

@@ -2,7 +2,7 @@ package container
 
 import (
 	"context"
-	"io/ioutil"
+	"io"
 	"os"
 	"testing"
 
@@ -267,7 +267,7 @@ func TestNewExecCommandErrors(t *testing.T) {
 	for _, tc := range testCases {
 		cli := test.NewFakeCli(&fakeClient{inspectFunc: tc.containerInspectFunc})
 		cmd := NewExecCommand(cli)
-		cmd.SetOut(ioutil.Discard)
+		cmd.SetOut(io.Discard)
 		cmd.SetArgs(tc.args)
 		assert.ErrorContains(t, cmd.Execute(), tc.expectedError)
 	}

cli/command/container/export_test.go

@@ -2,7 +2,6 @@ package container
 
 import (
 	"io"
-	"io/ioutil"
 	"strings"
 	"testing"
 
@@ -17,11 +16,11 @@ func TestContainerExportOutputToFile(t *testing.T) {
 
 	cli := test.NewFakeCli(&fakeClient{
 		containerExportFunc: func(container string) (io.ReadCloser, error) {
-			return ioutil.NopCloser(strings.NewReader("bar")), nil
+			return io.NopCloser(strings.NewReader("bar")), nil
 		},
 	})
 	cmd := NewExportCommand(cli)
-	cmd.SetOut(ioutil.Discard)
+	cmd.SetOut(io.Discard)
 	cmd.SetArgs([]string{"-o", dir.Join("foo"), "container"})
 	assert.NilError(t, cmd.Execute())
 
@@ -35,11 +34,11 @@ func TestContainerExportOutputToFile(t *testing.T) {
 func TestContainerExportOutputToIrregularFile(t *testing.T) {
 	cli := test.NewFakeCli(&fakeClient{
 		containerExportFunc: func(container string) (io.ReadCloser, error) {
-			return ioutil.NopCloser(strings.NewReader("foo")), nil
+			return io.NopCloser(strings.NewReader("foo")), nil
 		},
 	})
 	cmd := NewExportCommand(cli)
-	cmd.SetOut(ioutil.Discard)
+	cmd.SetOut(io.Discard)
 	cmd.SetArgs([]string{"-o", "/dev/random", "container"})
 
 	err := cmd.Execute()

cli/command/container/list.go

@@ -2,7 +2,7 @@ package container
 
 import (
 	"context"
-	"io/ioutil"
+	"io"
 
 	"github.com/docker/cli/cli"
 	"github.com/docker/cli/cli/command"
@@ -89,7 +89,7 @@ func buildContainerListOptions(opts *psOptions) (*types.ContainerListOptions, er
 
 		// This shouldn't error out but swallowing the error makes it harder
 		// to track down if preProcessor issues come up.
-		if err := tmpl.Execute(ioutil.Discard, optionsProcessor); err != nil {
+		if err := tmpl.Execute(io.Discard, optionsProcessor); err != nil {
 			return nil, errors.Wrap(err, "failed to execute template")
 		}
 

cli/command/container/list_test.go

@@ -2,7 +2,7 @@ package container
 
 import (
 	"fmt"
-	"io/ioutil"
+	"io"
 	"testing"
 
 	"github.com/docker/cli/cli/config/configfile"
@@ -161,7 +161,7 @@ func TestContainerListErrors(t *testing.T) {
 		for key, value := range tc.flags {
 			cmd.Flags().Set(key, value)
 		}
-		cmd.SetOut(ioutil.Discard)
+		cmd.SetOut(io.Discard)
 		assert.ErrorContains(t, cmd.Execute(), tc.expectedError)
 	}
 }

cli/command/container/logs_test.go

@@ -2,7 +2,6 @@ package container
 
 import (
 	"io"
-	"io/ioutil"
 	"strings"
 	"testing"
 
@@ -15,7 +14,7 @@ import (
 
 var logFn = func(expectedOut string) func(string, types.ContainerLogsOptions) (io.ReadCloser, error) {
 	return func(container string, opts types.ContainerLogsOptions) (io.ReadCloser, error) {
-		return ioutil.NopCloser(strings.NewReader(expectedOut)), nil
+		return io.NopCloser(strings.NewReader(expectedOut)), nil
 	}
 }
 

cli/command/container/opts.go

@@ -4,7 +4,7 @@ import (
 	"bytes"
 	"encoding/json"
 	"fmt"
-	"io/ioutil"
+	"os"
 	"path"
 	"reflect"
 	"regexp"
@@ -845,7 +845,7 @@ func parseSecurityOpts(securityOpts []string) ([]string, error) {
 			}
 		}
 		if con[0] == "seccomp" && con[1] != "unconfined" {
-			f, err := ioutil.ReadFile(con[1])
+			f, err := os.ReadFile(con[1])
 			if err != nil {
 				return securityOpts, errors.Errorf("opening seccomp profile (%s) failed: %v", con[1], err)
 			}

cli/command/container/opts_test.go

@@ -2,7 +2,7 @@ package container
 
 import (
 	"fmt"
-	"io/ioutil"
+	"io"
 	"os"
 	"runtime"
 	"strings"
@@ -58,7 +58,7 @@ func parseRun(args []string) (*container.Config, *container.HostConfig, *network
 
 func setupRunFlags() (*pflag.FlagSet, *containerOptions) {
 	flags := pflag.NewFlagSet("run", pflag.ContinueOnError)
-	flags.SetOutput(ioutil.Discard)
+	flags.SetOutput(io.Discard)
 	flags.Usage = nil
 	copts := addFlags(flags)
 	return flags, copts

cli/command/container/port_test.go

@@ -1,7 +1,7 @@
 package container
 
 import (
-	"io/ioutil"
+	"io"
 	"testing"
 
 	"github.com/docker/cli/internal/test"
@@ -47,7 +47,7 @@ func TestNewPortCommandOutput(t *testing.T) {
 				},
 			}, test.EnableContentTrust)
 			cmd := NewPortCommand(cli)
-			cmd.SetErr(ioutil.Discard)
+			cmd.SetErr(io.Discard)
 			cmd.SetArgs([]string{"some_container", "80"})
 			err := cmd.Execute()
 			assert.NilError(t, err)

cli/command/container/rm_test.go

@@ -3,7 +3,7 @@ package container
 import (
 	"context"
 	"fmt"
-	"io/ioutil"
+	"io"
 	"sort"
 	"testing"
 
@@ -27,7 +27,7 @@ func TestRemoveForce(t *testing.T) {
 		Version: "1.36",
 	})
 	cmd := NewRmCommand(cli)
-	cmd.SetOut(ioutil.Discard)
+	cmd.SetOut(io.Discard)
 
 	t.Run("without force", func(t *testing.T) {
 		cmd.SetArgs([]string{"nosuchcontainer", "mycontainer"})

cli/command/container/run_test.go

@@ -2,7 +2,7 @@ package container
 
 import (
 	"fmt"
-	"io/ioutil"
+	"io"
 	"testing"
 
 	"github.com/docker/cli/internal/test"
@@ -68,7 +68,7 @@ func TestRunCommandWithContentTrustErrors(t *testing.T) {
 		cli.SetNotaryClient(tc.notaryFunc)
 		cmd := NewRunCommand(cli)
 		cmd.SetArgs(tc.args)
-		cmd.SetOut(ioutil.Discard)
+		cmd.SetOut(io.Discard)
 		err := cmd.Execute()
 		assert.Assert(t, err != nil)
 		assert.Assert(t, is.Contains(cli.ErrBuffer().String(), tc.expectedError))