stop using the deprecated io/ioutil package

Author: web3-bot

api.go

@@ -3,7 +3,6 @@ package httpapi
 import (
 	"errors"
 	"fmt"
-	"io/ioutil"
 	"net/http"
 	"os"
 	"path/filepath"
@@ -74,7 +73,7 @@ func ApiAddr(ipfspath string) (ma.Multiaddr, error) {
 
 	apiFile := filepath.Join(baseDir, DefaultApiFile)
 
-	api, err := ioutil.ReadFile(apiFile)
+	api, err := os.ReadFile(apiFile)
 	if err != nil {
 		return nil, err
 	}

api_test.go

@@ -2,7 +2,6 @@ package httpapi
 
 import (
 	"context"
-	"io/ioutil"
 	"net/http"
 	"net/http/httptest"
 	"os"
@@ -92,7 +91,7 @@ func (np *NodeProvider) MakeAPISwarm(ctx context.Context, fullIdentity bool, n i
 
 func (NodeProvider) makeAPISwarm(ctx context.Context, fullIdentity bool, n int) ([]iface.CoreAPI, error) {
 
-	dir, err := ioutil.TempDir("", "httpapi-tb-")
+	dir, err := os.MkdirTemp("", "httpapi-tb-")
 	if err != nil {
 		return nil, err
 	}

apifile.go

@@ -5,7 +5,6 @@ import (
 	"encoding/json"
 	"fmt"
 	"io"
-	"io/ioutil"
 
 	"github.com/ipfs/go-cid"
 	files "github.com/ipfs/go-ipfs-files"
@@ -113,7 +112,7 @@ func (f *apiFile) Seek(offset int64, whence int) (int64, error) {
 	}
 
 	if f.at < offset && offset-f.at < forwardSeekLimit { //forward skip
-		r, err := io.CopyN(ioutil.Discard, f.r.Output, offset-f.at)
+		r, err := io.CopyN(io.Discard, f.r.Output, offset-f.at)
 
 		f.at += r
 		return f.at, err

dag.go

@@ -4,7 +4,7 @@ import (
 	"bytes"
 	"context"
 	"fmt"
-	"io/ioutil"
+	"io"
 
 	blocks "github.com/ipfs/go-block-format"
 	"github.com/ipfs/go-cid"
@@ -24,7 +24,7 @@ func (api *HttpDagServ) Get(ctx context.Context, c cid.Cid) (format.Node, error)
 		return nil, err
 	}
 
-	data, err := ioutil.ReadAll(r)
+	data, err := io.ReadAll(r)
 	if err != nil {
 		return nil, err
 	}

name.go

@@ -6,9 +6,9 @@ import (
 	"fmt"
 	"io"
 
-	"github.com/ipfs/interface-go-ipfs-core"
+	iface "github.com/ipfs/interface-go-ipfs-core"
 	caopts "github.com/ipfs/interface-go-ipfs-core/options"
-	"github.com/ipfs/interface-go-ipfs-core/options/namesys"
+	nsopts "github.com/ipfs/interface-go-ipfs-core/options/namesys"
 	"github.com/ipfs/interface-go-ipfs-core/path"
 )
 

object.go

@@ -5,13 +5,12 @@ import (
 	"context"
 	"fmt"
 	"io"
-	"io/ioutil"
 
 	"github.com/ipfs/go-cid"
 	ipld "github.com/ipfs/go-ipld-format"
 	"github.com/ipfs/go-merkledag"
 	ft "github.com/ipfs/go-unixfs"
-	"github.com/ipfs/interface-go-ipfs-core"
+	iface "github.com/ipfs/interface-go-ipfs-core"
 	caopts "github.com/ipfs/interface-go-ipfs-core/options"
 	"github.com/ipfs/interface-go-ipfs-core/path"
 )
@@ -71,7 +70,7 @@ func (api *ObjectAPI) Get(ctx context.Context, p path.Path) (ipld.Node, error) {
 	if err != nil {
 		return nil, err
 	}
-	b, err := ioutil.ReadAll(r)
+	b, err := io.ReadAll(r)
 	if err != nil {
 		return nil, err
 	}

requestbuilder.go

@@ -5,11 +5,10 @@ import (
 	"context"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"strconv"
 	"strings"
 
-	"github.com/ipfs/go-ipfs-files"
+	files "github.com/ipfs/go-ipfs-files"
 )
 
 type RequestBuilder interface {
@@ -59,7 +58,7 @@ func (r *requestBuilder) Body(body io.Reader) RequestBuilder {
 
 // FileBody sets the request body to the given reader wrapped into multipartreader.
 func (r *requestBuilder) FileBody(body io.Reader) RequestBuilder {
-	pr, _ := files.NewReaderPathFile("/dev/stdin", ioutil.NopCloser(body), nil)
+	pr, _ := files.NewReaderPathFile("/dev/stdin", io.NopCloser(body), nil)
 	d := files.NewMapDirectory(map[string]files.Node{"": pr})
 	r.body = files.NewMultiFileReader(d, false)
 

response.go

@@ -5,7 +5,6 @@ import (
 	"errors"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"mime"
 	"net/http"
 	"net/url"
@@ -45,7 +44,7 @@ func (r *Response) Close() error {
 	if r.Output != nil {
 
 		// drain output (response body)
-		_, err1 := io.Copy(ioutil.Discard, r.Output)
+		_, err1 := io.Copy(io.Discard, r.Output)
 		err2 := r.Output.Close()
 		if err1 != nil {
 			return err1
@@ -117,7 +116,7 @@ func (r *Request) Send(c *http.Client) (*Response, error) {
 		case resp.StatusCode == http.StatusNotFound:
 			e.Message = "command not found"
 		case contentType == "text/plain":
-			out, err := ioutil.ReadAll(resp.Body)
+			out, err := io.ReadAll(resp.Body)
 			if err != nil {
 				fmt.Fprintf(os.Stderr, "ipfs-shell: warning! response (%d) read error: %s\n", resp.StatusCode, err)
 			}
@@ -140,7 +139,7 @@ func (r *Request) Send(c *http.Client) (*Response, error) {
 			// This is a server-side bug (probably).
 			e.Code = cmds.ErrImplementation
 			fmt.Fprintf(os.Stderr, "ipfs-shell: warning! unhandled response (%d) encoding: %s", resp.StatusCode, contentType)
-			out, err := ioutil.ReadAll(resp.Body)
+			out, err := io.ReadAll(resp.Body)
 			if err != nil {
 				fmt.Fprintf(os.Stderr, "ipfs-shell: response (%d) read error: %s\n", resp.StatusCode, err)
 			}
@@ -150,7 +149,7 @@ func (r *Request) Send(c *http.Client) (*Response, error) {
 		nresp.Output = nil
 
 		// drain body and close
-		_, _ = io.Copy(ioutil.Discard, resp.Body)
+		_, _ = io.Copy(io.Discard, resp.Body)
 		_ = resp.Body.Close()
 	}