refactor: stop using deprecated io/ioutil

lib/backupds/backupds_test.go

@@ -5,7 +5,6 @@ import (
 	"bytes"
 	"context"
 	"fmt"
-	"io/ioutil"
 	"os"
 	"path/filepath"
 	"strings"
@@ -77,7 +76,7 @@ func TestLogRestore(t *testing.T) {
 	require.NoError(t, err)
 	require.Equal(t, 1, len(fls))
 
-	bf, err := ioutil.ReadFile(filepath.Join(logdir, fls[0].Name()))
+	bf, err := os.ReadFile(filepath.Join(logdir, fls[0].Name()))
 	require.NoError(t, err)
 
 	ds2 := datastore.NewMapDatastore()

lib/consensus/raft/config.go

@@ -1,7 +1,7 @@
 package consensus
 
 import (
-	"io/ioutil"
+	"io"
 	"path/filepath"
 	"time"
 
@@ -69,7 +69,7 @@ func DefaultClusterRaftConfig() *ClusterRaftConfig {
 	cfg.RaftConfig.LocalID = "will_be_set_automatically"
 
 	// Set up logging
-	cfg.RaftConfig.LogOutput = ioutil.Discard
+	cfg.RaftConfig.LogOutput = io.Discard
 	return &cfg
 }
 
@@ -91,7 +91,7 @@ func NewClusterRaftConfig(userRaftConfig *config.UserRaftConfig) *ClusterRaftCon
 	cfg.RaftConfig.LocalID = "will_be_set_automatically"
 
 	// Set up logging
-	cfg.RaftConfig.LogOutput = ioutil.Discard
+	cfg.RaftConfig.LogOutput = io.Discard
 
 	return &cfg
 

lib/rpcenc/reader.go

@@ -6,7 +6,6 @@ import (
 	"errors"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"net/http"
 	"net/url"
 	"path"
@@ -158,7 +157,7 @@ func ReaderParamEncoder(addr string) jsonrpc.Option {
 					}
 
 					if resp.StatusCode != http.StatusOK {
-						b, _ := ioutil.ReadAll(resp.Body)
+						b, _ := io.ReadAll(resp.Body)
 						log.Errorf("sending reader param (%s): non-200 status: %s, msg: '%s'", u.String(), resp.Status, string(b))
 						return
 					}
@@ -182,7 +181,7 @@ func ReaderParamEncoder(addr string) jsonrpc.Option {
 				defer resp.Body.Close() //nolint
 
 				if resp.StatusCode != http.StatusOK {
-					b, _ := ioutil.ReadAll(resp.Body)
+					b, _ := io.ReadAll(resp.Body)
 					log.Errorf("sending reader param (%s): non-200 status: %s, msg: '%s'", u.String(), resp.Status, string(b))
 					return
 				}

lib/unixfs/filestore.go

@@ -4,7 +4,6 @@ import (
 	"context"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"os"
 
 	"github.com/ipfs/go-blockservice"
@@ -68,7 +67,7 @@ func CreateFilestore(ctx context.Context, srcPath string, dstPath string) (cid.C
 		return cid.Undef, xerrors.Errorf("failed to create reader path file: %w", err)
 	}
 
-	f, err := ioutil.TempFile("", "")
+	f, err := os.CreateTemp("", "")
 	if err != nil {
 		return cid.Undef, xerrors.Errorf("failed to create temp file: %w", err)
 	}

lib/unixfs/filestore_test.go

@@ -5,7 +5,6 @@ import (
 	"bytes"
 	"context"
 	"io"
-	"io/ioutil"
 	"os"
 	"strings"
 	"testing"
@@ -67,7 +66,7 @@ func TestRoundtripUnixFS_Dense(t *testing.T) {
 	// ensure contents of the initial input file and the output file are identical.
 	fo, err := os.Open(tmpOutput)
 	require.NoError(t, err)
-	bz2, err := ioutil.ReadAll(fo)
+	bz2, err := io.ReadAll(fo)
 	require.NoError(t, err)
 	require.NoError(t, fo.Close())
 	require.Equal(t, inputContents, bz2)
@@ -107,7 +106,7 @@ func TestRoundtripUnixFS_Filestore(t *testing.T) {
 	// ensure contents of the initial input file and the output file are identical.
 	fo, err := os.Open(tmpOutput)
 	require.NoError(t, err)
-	bz2, err := ioutil.ReadAll(fo)
+	bz2, err := io.ReadAll(fo)
 	require.NoError(t, err)
 	require.NoError(t, fo.Close())
 	require.Equal(t, inputContents, bz2)