Do not use `ioutil` as it is deprecated (#2625)

5 files changed, 11 insertions, 15 deletions

diff --git a/cmd/create-account/main.go b/cmd/create-account/main.go
index 7f6d5105..92179a04 100644
--- a/cmd/create-account/main.go
+++ b/cmd/create-account/main.go
@@ -19,7 +19,6 @@ import (
 	"flag"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"os"
 	"regexp"
 	"strings"
@@ -157,7 +156,7 @@ func main() {
 func getPassword(password, pwdFile string, pwdStdin bool, r io.Reader) (string, error) {
 	// read password from file
 	if pwdFile != "" {
-		pw, err := ioutil.ReadFile(pwdFile)
+		pw, err := os.ReadFile(pwdFile)
 		if err != nil {
 			return "", fmt.Errorf("Unable to read password from file: %v", err)
 		}
@@ -166,7 +165,7 @@ func getPassword(password, pwdFile string, pwdStdin bool, r io.Reader) (string,
 
 	// read password from stdin
 	if pwdStdin {
-		data, err := ioutil.ReadAll(r)
+		data, err := io.ReadAll(r)
 		if err != nil {
 			return "", fmt.Errorf("Unable to read password from stdin: %v", err)
 		}
diff --git a/cmd/dendrite-demo-pinecone/main.go b/cmd/dendrite-demo-pinecone/main.go
index 8fa935dd..75f29fe2 100644
--- a/cmd/dendrite-demo-pinecone/main.go
+++ b/cmd/dendrite-demo-pinecone/main.go
@@ -21,7 +21,6 @@ import (
 	"encoding/hex"
 	"flag"
 	"fmt"
-	"io/ioutil"
 	"net"
 	"net/http"
 	"os"
@@ -76,11 +75,11 @@ func main() {
 		if pk, sk, err = ed25519.GenerateKey(nil); err != nil {
 			panic(err)
 		}
-		if err = ioutil.WriteFile(keyfile, sk, 0644); err != nil {
+		if err = os.WriteFile(keyfile, sk, 0644); err != nil {
 			panic(err)
 		}
 	} else if err == nil {
-		if sk, err = ioutil.ReadFile(keyfile); err != nil {
+		if sk, err = os.ReadFile(keyfile); err != nil {
 			panic(err)
 		}
 		if len(sk) != ed25519.PrivateKeySize {
diff --git a/cmd/dendrite-demo-yggdrasil/yggconn/node.go b/cmd/dendrite-demo-yggdrasil/yggconn/node.go
index d93272e2..ff3c73ec 100644
--- a/cmd/dendrite-demo-yggdrasil/yggconn/node.go
+++ b/cmd/dendrite-demo-yggdrasil/yggconn/node.go
@@ -20,7 +20,6 @@ import (
 	"encoding/hex"
 	"encoding/json"
 	"fmt"
-	"io/ioutil"
 	"log"
 	"net"
 	"os"
@@ -69,7 +68,7 @@ func Setup(instanceName, storageDirectory, peerURI string) (*Node, error) {
 
 	yggfile := fmt.Sprintf("%s/%s-yggdrasil.conf", storageDirectory, instanceName)
 	if _, err := os.Stat(yggfile); !os.IsNotExist(err) {
-		yggconf, e := ioutil.ReadFile(yggfile)
+		yggconf, e := os.ReadFile(yggfile)
 		if e != nil {
 			panic(err)
 		}
@@ -88,7 +87,7 @@ func Setup(instanceName, storageDirectory, peerURI string) (*Node, error) {
 	if err != nil {
 		panic(err)
 	}
-	if e := ioutil.WriteFile(yggfile, j, 0600); e != nil {
+	if e := os.WriteFile(yggfile, j, 0600); e != nil {
 		n.log.Printf("Couldn't write private key to file '%s': %s\n", yggfile, e)
 	}
 
diff --git a/cmd/dendrite-upgrade-tests/main.go b/cmd/dendrite-upgrade-tests/main.go
index ea5f5e2b..dce22472 100644
--- a/cmd/dendrite-upgrade-tests/main.go
+++ b/cmd/dendrite-upgrade-tests/main.go
@@ -6,7 +6,7 @@ import (
 	"encoding/json"
 	"flag"
 	"fmt"
-	"io/ioutil"
+	"io"
 	"log"
 	"net/http"
 	"os"
@@ -128,7 +128,7 @@ func downloadArchive(cli *http.Client, tmpDir, archiveURL string, dockerfile []b
 		return nil, err
 	}
 	// add top level Dockerfile
-	err = ioutil.WriteFile(path.Join(tmpDir, "Dockerfile"), dockerfile, os.ModePerm)
+	err = os.WriteFile(path.Join(tmpDir, "Dockerfile"), dockerfile, os.ModePerm)
 	if err != nil {
 		return nil, fmt.Errorf("failed to inject /Dockerfile: %w", err)
 	}
@@ -150,7 +150,7 @@ func buildDendrite(httpClient *http.Client, dockerClient *client.Client, tmpDir,
 	if branchOrTagName == HEAD && *flagHead != "" {
 		log.Printf("%s: Using %s as HEAD", branchOrTagName, *flagHead)
 		// add top level Dockerfile
-		err = ioutil.WriteFile(path.Join(*flagHead, "Dockerfile"), []byte(Dockerfile), os.ModePerm)
+		err = os.WriteFile(path.Join(*flagHead, "Dockerfile"), []byte(Dockerfile), os.ModePerm)
 		if err != nil {
 			return "", fmt.Errorf("custom HEAD: failed to inject /Dockerfile: %w", err)
 		}
@@ -388,7 +388,7 @@ func runImage(dockerClient *client.Client, volumeName, version, imageID string)
 		})
 		// ignore errors when cannot get logs, it's just for debugging anyways
 		if err == nil {
-			logbody, err := ioutil.ReadAll(logs)
+			logbody, err := io.ReadAll(logs)
 			if err == nil {
 				log.Printf("Container logs:\n\n%s\n\n", string(logbody))
 			}
diff --git a/cmd/furl/main.go b/cmd/furl/main.go
index 75e22338..f59f9c8c 100644
--- a/cmd/furl/main.go
+++ b/cmd/furl/main.go
@@ -9,7 +9,6 @@ import (
 	"encoding/pem"
 	"flag"
 	"fmt"
-	"io/ioutil"
 	"net/url"
 	"os"
 
@@ -30,7 +29,7 @@ func main() {
 		os.Exit(1)
 	}
 
-	data, err := ioutil.ReadFile(*requestKey)
+	data, err := os.ReadFile(*requestKey)
 	if err != nil {
 		panic(err)
 	}