chore: replace ioutil with io and os

cmd/ipfs/add_migrations.go

@@ -5,7 +5,6 @@ import (
 	"errors"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"os"
 	"path/filepath"
 
@@ -154,7 +153,7 @@ func ipfsGet(ctx context.Context, ufs coreiface.UnixfsAPI, ipfsPath ipath.Path)
 	if !ok {
 		return fmt.Errorf("not a file node: %q", ipfsPath)
 	}
-	_, err = io.Copy(ioutil.Discard, fnd)
+	_, err = io.Copy(io.Discard, fnd)
 	if err != nil {
 		return fmt.Errorf("cannot read migration: %w", err)
 	}

cmd/ipfs/daemon.go

@@ -4,7 +4,6 @@ import (
 	"errors"
 	_ "expvar"
 	"fmt"
-	"io/ioutil"
 	"net"
 	"net/http"
 	_ "net/http/pprof"
@@ -331,7 +330,7 @@ func daemonFunc(req *cmds.Request, re cmds.ResponseEmitter, env cmds.Environment
 
 		if cacheMigrations || pinMigrations {
 			// Create temp directory to store downloaded migration archives
-			migrations.DownloadDirectory, err = ioutil.TempDir("", "migrations")
+			migrations.DownloadDirectory, err = os.MkdirTemp("", "migrations")
 			if err != nil {
 				return err
 			}

cmd/ipfs/runmain_test.go

@@ -21,7 +21,7 @@ func TestRunMain(t *testing.T) {
 
 	p := os.Getenv("IPFS_COVER_RET_FILE")
 	if len(p) != 0 {
-		ioutil.WriteFile(p, []byte(fmt.Sprintf("%d\n", ret)), 0777)
+		os.WriteFile(p, []byte(fmt.Sprintf("%d\n", ret)), 0777)
 	}
 
 	// close outputs so go testing doesn't print anything

core/commands/config.go

@@ -5,7 +5,6 @@ import (
 	"errors"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"os"
 	"os/exec"
 	"strings"
@@ -192,7 +191,7 @@ NOTE: For security reasons, this command will omit your private key and remote s
 			return err
 		}
 
-		data, err := ioutil.ReadFile(fname)
+		data, err := os.ReadFile(fname)
 		if err != nil {
 			return err
 		}

core/commands/dht.go

@@ -6,7 +6,6 @@ import (
 	"errors"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"time"
 
 	cmdenv "github.com/ipfs/go-ipfs/core/commands/cmdenv"
@@ -580,7 +579,7 @@ identified by QmFoo.
 		}
 		defer file.Close()
 
-		data, err := ioutil.ReadAll(file)
+		data, err := io.ReadAll(file)
 		if err != nil {
 			return err
 		}

core/commands/keystore.go

@@ -7,7 +7,6 @@ import (
 	"encoding/pem"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"os"
 	"path/filepath"
 	"strings"
@@ -276,7 +275,7 @@ elsewhere. For example, using openssl to get a PEM with public key:
 
 			switch exportFormat {
 			case keyFormatPemCleartextOption:
-				privKeyBytes, err := ioutil.ReadAll(outReader)
+				privKeyBytes, err := io.ReadAll(outReader)
 				if err != nil {
 					return err
 				}
@@ -344,7 +343,7 @@ The PEM format allows for key generation outside of the IPFS node:
 		}
 		defer file.Close()
 
-		data, err := ioutil.ReadAll(file)
+		data, err := io.ReadAll(file)
 		if err != nil {
 			return err
 		}

core/commands/multibase.go

@@ -3,7 +3,7 @@ package commands
 import (
 	"bytes"
 	"fmt"
-	"io/ioutil"
+	"io"
 	"strings"
 
 	cmds "github.com/ipfs/go-ipfs-cmds"
@@ -66,7 +66,7 @@ but one can customize used base with -b:
 		if err != nil {
 			return fmt.Errorf("failed to access file: %w", err)
 		}
-		buf, err := ioutil.ReadAll(file)
+		buf, err := io.ReadAll(file)
 		if err != nil {
 			return fmt.Errorf("failed to read file contents: %w", err)
 		}
@@ -105,7 +105,7 @@ This command expects multibase inside of a file or via stdin:
 		if err != nil {
 			return fmt.Errorf("failed to access file: %w", err)
 		}
-		encoded_data, err := ioutil.ReadAll(file)
+		encoded_data, err := io.ReadAll(file)
 		if err != nil {
 			return fmt.Errorf("failed to read file contents: %w", err)
 		}
@@ -156,7 +156,7 @@ but one can customize used base with -b:
 		if err != nil {
 			return fmt.Errorf("failed to access file: %w", err)
 		}
-		encoded_data, err := ioutil.ReadAll(file)
+		encoded_data, err := io.ReadAll(file)
 		if err != nil {
 			return fmt.Errorf("failed to read file contents: %w", err)
 		}

core/commands/object/object.go

@@ -5,7 +5,6 @@ import (
 	"errors"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"text/tabwriter"
 
 	cmds "github.com/ipfs/go-ipfs-cmds"
@@ -230,7 +229,7 @@ DEPRECATED and provided for legacy reasons. Use 'ipfs dag get' instead.
 			return err
 		}
 
-		data, err := ioutil.ReadAll(r)
+		data, err := io.ReadAll(r)
 		if err != nil {
 			return err
 		}

core/commands/pubsub.go

@@ -4,7 +4,6 @@ import (
 	"context"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"net/http"
 	"sort"
 
@@ -191,7 +190,7 @@ HTTP RPC ENCODING
 			return err
 		}
 		defer file.Close()
-		data, err := ioutil.ReadAll(file)
+		data, err := io.ReadAll(file)
 		if err != nil {
 			return err
 		}

core/coreapi/block.go

@@ -5,7 +5,6 @@ import (
 	"context"
 	"errors"
 	"io"
-	"io/ioutil"
 
 	blocks "github.com/ipfs/go-block-format"
 	cid "github.com/ipfs/go-cid"
@@ -36,7 +35,7 @@ func (api *BlockAPI) Put(ctx context.Context, src io.Reader, opts ...caopts.Bloc
 		return nil, err
 	}
 
-	data, err := ioutil.ReadAll(src)
+	data, err := io.ReadAll(src)
 	if err != nil {
 		return nil, err
 	}

core/coreapi/object.go

@@ -9,7 +9,6 @@ import (
 	"errors"
 	"fmt"
 	"io"
-	"io/ioutil"
 
 	cid "github.com/ipfs/go-cid"
 	pin "github.com/ipfs/go-ipfs-pinner"
@@ -79,7 +78,7 @@ func (api *ObjectAPI) Put(ctx context.Context, src io.Reader, opts ...caopts.Obj
 		attribute.String("inputenc", options.InputEnc),
 	)
 
-	data, err := ioutil.ReadAll(io.LimitReader(src, inputLimit+10))
+	data, err := io.ReadAll(io.LimitReader(src, inputLimit+10))
 	if err != nil {
 		return nil, err
 	}
@@ -316,7 +315,7 @@ func (api *ObjectAPI) patchData(ctx context.Context, path ipath.Path, r io.Reade
 		return nil, dag.ErrNotProtobuf
 	}
 
-	data, err := ioutil.ReadAll(r)
+	data, err := io.ReadAll(r)
 	if err != nil {
 		return nil, err
 	}

core/coredag/cbor.go

@@ -2,7 +2,6 @@ package coredag
 
 import (
 	"io"
-	"io/ioutil"
 
 	ipldcbor "github.com/ipfs/go-ipld-cbor"
 	ipld "github.com/ipfs/go-ipld-format"
@@ -18,7 +17,7 @@ func cborJSONParser(r io.Reader, mhType uint64, mhLen int) ([]ipld.Node, error)
 }
 
 func cborRawParser(r io.Reader, mhType uint64, mhLen int) ([]ipld.Node, error) {
-	data, err := ioutil.ReadAll(r)
+	data, err := io.ReadAll(r)
 	if err != nil {
 		return nil, err
 	}

core/coredag/dagpb.go

@@ -2,7 +2,6 @@ package coredag
 
 import (
 	"io"
-	"io/ioutil"
 	"math"
 
 	"github.com/ipfs/go-merkledag"
@@ -13,7 +12,7 @@ import (
 )
 
 func dagpbJSONParser(r io.Reader, mhType uint64, mhLen int) ([]ipld.Node, error) {
-	data, err := ioutil.ReadAll(r)
+	data, err := io.ReadAll(r)
 	if err != nil {
 		return nil, err
 	}
@@ -31,7 +30,7 @@ func dagpbJSONParser(r io.Reader, mhType uint64, mhLen int) ([]ipld.Node, error)
 }
 
 func dagpbRawParser(r io.Reader, mhType uint64, mhLen int) ([]ipld.Node, error) {
-	data, err := ioutil.ReadAll(r)
+	data, err := io.ReadAll(r)
 	if err != nil {
 		return nil, err
 	}

core/coredag/raw.go

@@ -2,7 +2,6 @@ package coredag
 
 import (
 	"io"
-	"io/ioutil"
 	"math"
 
 	"github.com/ipfs/go-merkledag"
@@ -18,7 +17,7 @@ func rawRawParser(r io.Reader, mhType uint64, mhLen int) ([]ipld.Node, error) {
 		mhType = mh.SHA2_256
 	}
 
-	data, err := ioutil.ReadAll(r)
+	data, err := io.ReadAll(r)
 	if err != nil {
 		return nil, err
 	}

core/corehttp/gateway_handler_block.go

@@ -3,7 +3,7 @@ package corehttp
 import (
 	"bytes"
 	"context"
-	"io/ioutil"
+	"io"
 	"net/http"
 	"time"
 
@@ -23,7 +23,7 @@ func (i *gatewayHandler) serveRawBlock(ctx context.Context, w http.ResponseWrite
 		webError(w, "ipfs block get "+blockCid.String(), err, http.StatusInternalServerError)
 		return
 	}
-	block, err := ioutil.ReadAll(blockReader)
+	block, err := io.ReadAll(blockReader)
 	if err != nil {
 		webError(w, "ipfs block get "+blockCid.String(), err, http.StatusInternalServerError)
 		return

core/corehttp/gateway_test.go

@@ -3,7 +3,7 @@ package corehttp
 import (
 	"context"
 	"errors"
-	"io/ioutil"
+	"io"
 	"net/http"
 	"net/http/httptest"
 	"regexp"
@@ -267,7 +267,7 @@ func TestGatewayGet(t *testing.T) {
 		if contentType != "text/plain; charset=utf-8" {
 			t.Errorf("expected content type to be text/plain, got %s", contentType)
 		}
-		body, err := ioutil.ReadAll(resp.Body)
+		body, err := io.ReadAll(resp.Body)
 		if resp.StatusCode != test.status {
 			t.Errorf("(%d) got %d, expected %d from %s", i, resp.StatusCode, test.status, urlstr)
 			t.Errorf("Body: %s", body)
@@ -335,7 +335,7 @@ func TestPretty404(t *testing.T) {
 		if resp.StatusCode != test.status {
 			t.Fatalf("got %d, expected %d, from %s", resp.StatusCode, test.status, test.path)
 		}
-		body, err := ioutil.ReadAll(resp.Body)
+		body, err := io.ReadAll(resp.Body)
 		if err != nil {
 			t.Fatalf("error reading response from %s: %s", test.path, err)
 		}
@@ -482,7 +482,7 @@ func TestIPNSHostnameBacklinks(t *testing.T) {
 	}
 
 	// expect correct links
-	body, err := ioutil.ReadAll(res.Body)
+	body, err := io.ReadAll(res.Body)
 	if err != nil {
 		t.Fatalf("error reading response: %s", err)
 	}
@@ -519,7 +519,7 @@ func TestIPNSHostnameBacklinks(t *testing.T) {
 	}
 
 	// expect correct backlinks at root
-	body, err = ioutil.ReadAll(res.Body)
+	body, err = io.ReadAll(res.Body)
 	if err != nil {
 		t.Fatalf("error reading response: %s", err)
 	}
@@ -556,7 +556,7 @@ func TestIPNSHostnameBacklinks(t *testing.T) {
 	}
 
 	// expect correct backlinks
-	body, err = ioutil.ReadAll(res.Body)
+	body, err = io.ReadAll(res.Body)
 	if err != nil {
 		t.Fatalf("error reading response: %s", err)
 	}
@@ -638,7 +638,7 @@ func TestVersion(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
-	body, err := ioutil.ReadAll(res.Body)
+	body, err := io.ReadAll(res.Body)
 	if err != nil {
 		t.Fatalf("error reading response: %s", err)
 	}