chore: remove refs to deprecated io/ioutil

internal/context/context_test.go

@@ -2,7 +2,6 @@ package context
 
 import (
 	"fmt"
-	"io/ioutil"
 	"os"
 	"testing"
 
@@ -74,7 +73,7 @@ func TestGetCurrentContainerID(t *testing.T) {
 	var filepaths []string
 	// Create temporary files with test content
 	for _, key := range fileKeys {
-		file, err := ioutil.TempFile("", key)
+		file, err := os.CreateTemp("", key)
 		if err != nil {
 			t.Fatal(err)
 		}
@@ -114,7 +113,7 @@ func TestGetCurrentContainerIDMountInfo(t *testing.T) {
 	var filepaths []string
 	// Create temporary files with test content
 	for _, key := range fileKeys {
-		file, err := ioutil.TempFile("", key)
+		file, err := os.CreateTemp("", key)
 		if err != nil {
 			t.Fatal(err)
 		}

internal/dockerclient/docker_cli_test.go

@@ -2,7 +2,6 @@ package dockerclient
 
 import (
 	"fmt"
-	"io/ioutil"
 	"os"
 	"testing"
 
@@ -236,7 +235,7 @@ func TestTlsEnabled(t *testing.T) {
 	}
 	// Create temporary files
 	for key := range filepaths {
-		file, err := ioutil.TempFile("", key)
+		file, err := os.CreateTemp("", key)
 		if err != nil {
 			t.Fatal(err)
 		}

internal/generator/generator_test.go

@@ -4,7 +4,7 @@ import (
 	"bufio"
 	"encoding/json"
 	"fmt"
-	"io/ioutil"
+	"io"
 	"log"
 	"net/http"
 	"os"
@@ -21,7 +21,7 @@ import (
 )
 
 func TestGenerateFromEvents(t *testing.T) {
-	log.SetOutput(ioutil.Discard)
+	log.SetOutput(io.Discard)
 	containerID := "8dfafdbc3a40"
 	var counter atomic.Int32
 
@@ -112,22 +112,22 @@ func TestGenerateFromEvents(t *testing.T) {
 	}
 	client.SkipServerVersionCheck = true
 
-	tmplFile, err := ioutil.TempFile(os.TempDir(), "docker-gen-tmpl")
+	tmplFile, err := os.CreateTemp(os.TempDir(), "docker-gen-tmpl")
 	if err != nil {
 		t.Errorf("Failed to create temp file: %v\n", err)
 	}
 	defer func() {
 		tmplFile.Close()
 		os.Remove(tmplFile.Name())
 	}()
-	err = ioutil.WriteFile(tmplFile.Name(), []byte("{{range $key, $value := .}}{{$value.ID}}.{{$value.Env.COUNTER}}{{end}}"), 0644)
+	err = os.WriteFile(tmplFile.Name(), []byte("{{range $key, $value := .}}{{$value.ID}}.{{$value.Env.COUNTER}}{{end}}"), 0644)
 	if err != nil {
 		t.Errorf("Failed to write to temp file: %v\n", err)
 	}
 
 	var destFiles []*os.File
 	for i := 0; i < 4; i++ {
-		destFile, err := ioutil.TempFile(os.TempDir(), "docker-gen-out")
+		destFile, err := os.CreateTemp(os.TempDir(), "docker-gen-out")
 		if err != nil {
 			t.Errorf("Failed to create temp file: %v\n", err)
 		}
@@ -202,7 +202,7 @@ func TestGenerateFromEvents(t *testing.T) {
 	expectedCounters := []int{1, 5, 6, 7}
 
 	for i, counter := range expectedCounters {
-		value, _ = ioutil.ReadFile(destFiles[i].Name())
+		value, _ = os.ReadFile(destFiles[i].Name())
 		expected = fmt.Sprintf("%s.%d", containerID, counter)
 		if string(value) != expected {
 			t.Errorf("expected: %s. got: %s", expected, value)

internal/template/functions.go

@@ -6,8 +6,8 @@ import (
 	"encoding/json"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"log"
+	"os"
 	"reflect"
 	"strings"
 )
@@ -104,7 +104,7 @@ func arrayClosest(values []string, input string) string {
 // dirList returns a list of files in the specified path
 func dirList(path string) ([]string, error) {
 	names := []string{}
-	files, err := ioutil.ReadDir(path)
+	files, err := os.ReadDir(path)
 	if err != nil {
 		log.Printf("Template error: %v", err)
 		return names, nil

internal/template/functions_test.go

@@ -3,7 +3,6 @@ package template
 import (
 	"bytes"
 	"encoding/json"
-	"io/ioutil"
 	"os"
 	"path"
 	"reflect"
@@ -258,7 +257,7 @@ func TestWhenFalse(t *testing.T) {
 }
 
 func TestDirList(t *testing.T) {
-	dir, err := ioutil.TempDir("", "dirList")
+	dir, err := os.MkdirTemp("", "dirList")
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -271,7 +270,7 @@ func TestDirList(t *testing.T) {
 	}
 	// Create temporary files
 	for key := range files {
-		file, err := ioutil.TempFile(dir, key)
+		file, err := os.CreateTemp(dir, key)
 		if err != nil {
 			t.Fatal(err)
 		}

internal/template/template.go

@@ -6,7 +6,6 @@ import (
 	"errors"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"log"
 	"net/url"
 	"os"
@@ -172,7 +171,7 @@ func GenerateFile(config config.Config, containers context.Context) bool {
 	}
 
 	if config.Dest != "" {
-		dest, err := ioutil.TempFile(filepath.Dir(config.Dest), "docker-gen")
+		dest, err := os.CreateTemp(filepath.Dir(config.Dest), "docker-gen")
 		defer func() {
 			dest.Close()
 			os.Remove(dest.Name())
@@ -202,7 +201,7 @@ func GenerateFile(config config.Config, containers context.Context) bool {
 			if err := dest.Chown(int(fi.Sys().(*syscall.Stat_t).Uid), int(fi.Sys().(*syscall.Stat_t).Gid)); err != nil {
 				log.Fatalf("Unable to chown temp file: %s\n", err)
 			}
-			oldContents, err = ioutil.ReadFile(config.Dest)
+			oldContents, err = os.ReadFile(config.Dest)
 			if err != nil {
 				log.Fatalf("Unable to compare current file contents: %s: %s\n", config.Dest, err)
 			}

internal/utils/utils_test.go

@@ -1,7 +1,6 @@
 package utils
 
 import (
-	"io/ioutil"
 	"os"
 	"testing"
 
@@ -29,7 +28,7 @@ func TestSplitKeyValueSlice(t *testing.T) {
 }
 
 func TestPathExists(t *testing.T) {
-	file, err := ioutil.TempFile("", "test")
+	file, err := os.CreateTemp("", "test")
 	if err != nil {
 		t.Fatal(err)
 	}