all: remove refs to deprecated io/ioutil (#140)

doc.go

@@ -4,7 +4,6 @@ import (
 	"bytes"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"log"
 	"os"
 	"os/exec"
@@ -77,7 +76,7 @@ func ConvertDoc(r io.Reader) (string, map[string]string, error) {
 
 		// Save output to a file
 		var buf bytes.Buffer
-		outputFile, err := ioutil.TempFile("/tmp", "sajari-convert-")
+		outputFile, err := os.CreateTemp("/tmp", "sajari-convert-")
 		if err != nil {
 			// TODO: Remove this.
 			log.Println("TempFile Out:", err)

docconv.go

@@ -4,7 +4,6 @@ import (
 	"encoding/json"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"os"
 	"path"
 	"strings"
@@ -98,7 +97,7 @@ func Convert(r io.Reader, mimeType string, readability bool) (*Response, error)
 
 	case "text/plain":
 		var b []byte
-		b, err = ioutil.ReadAll(r)
+		b, err = io.ReadAll(r)
 		body = string(b)
 	}
 

docx.go

@@ -6,7 +6,6 @@ import (
 	"encoding/xml"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"os"
 	"time"
 )
@@ -40,7 +39,7 @@ func ConvertDocx(r io.Reader) (string, map[string]string, error) {
 		size = si.Size()
 		ra = f
 	} else {
-		b, err := ioutil.ReadAll(io.LimitReader(r, maxBytes))
+		b, err := io.ReadAll(io.LimitReader(r, maxBytes))
 		if err != nil {
 			return "", nil, nil
 		}

html_appengine.go

@@ -1,15 +1,15 @@
+//go:build appengine
 // +build appengine
 
 package docconv
 
 import (
 	"io"
-	"io/ioutil"
 	"log"
 )
 
 func HTMLReadability(r io.Reader) []byte {
-	b, err := ioutil.ReadAll(r)
+	b, err := io.ReadAll(r)
 	if err != nil {
 		log.Printf("HTMLReadability: %v", err)
 		return nil

html_test/html_test.go

@@ -3,7 +3,7 @@ package html_test
 import (
 	"bytes"
 	"fmt"
-	"io/ioutil"
+	"os"
 	"testing"
 
 	"github.com/google/go-cmp/cmp"
@@ -39,7 +39,7 @@ This is a full sentence.
 			})
 			docconv.HTMLReadabilityOptionsValues.ReadabilityUseClasses = tt.readabilityUseClasses
 
-			data, err := ioutil.ReadFile("testdata/test.html")
+			data, err := os.ReadFile("testdata/test.html")
 			must(t, err)
 			got, _, err := docconv.ConvertHTML(bytes.NewReader(data), true)
 			must(t, err)

local.go

@@ -3,7 +3,6 @@ package docconv
 import (
 	"fmt"
 	"io"
-	"io/ioutil"
 	"os"
 )
 
@@ -25,7 +24,7 @@ func NewLocalFile(r io.Reader) (*LocalFile, error) {
 		}, nil
 	}
 
-	f, err := ioutil.TempFile(os.TempDir(), "docconv")
+	f, err := os.CreateTemp(os.TempDir(), "docconv")
 	if err != nil {
 		return nil, fmt.Errorf("error creating temporary file: %v", err)
 	}

odt.go

@@ -5,7 +5,6 @@ import (
 	"bytes"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"time"
 )
 
@@ -14,7 +13,7 @@ func ConvertODT(r io.Reader) (string, map[string]string, error) {
 	meta := make(map[string]string)
 	var textBody string
 
-	b, err := ioutil.ReadAll(io.LimitReader(r, maxBytes))
+	b, err := io.ReadAll(io.LimitReader(r, maxBytes))
 	if err != nil {
 		return "", nil, err
 	}

pages.go

@@ -7,7 +7,6 @@ import (
 	"encoding/binary"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"strings"
 
 	"google.golang.org/protobuf/proto"
@@ -21,7 +20,7 @@ func ConvertPages(r io.Reader) (string, map[string]string, error) {
 	meta := make(map[string]string)
 	var textBody string
 
-	b, err := ioutil.ReadAll(io.LimitReader(r, maxBytes))
+	b, err := io.ReadAll(io.LimitReader(r, maxBytes))
 	if err != nil {
 		return "", nil, fmt.Errorf("error reading data: %v", err)
 	}
@@ -57,7 +56,7 @@ func ConvertPages(r io.Reader) (string, map[string]string, error) {
 			// Ignore error.
 			// NOTE: This error was unchecked. Need to revisit this to see if it
 			// should be acted on.
-			archiveInfoData, _ := ioutil.ReadAll(io.LimitReader(bReader, archiveLength))
+			archiveInfoData, _ := io.ReadAll(io.LimitReader(bReader, archiveLength))
 
 			archiveInfo := &TSP.ArchiveInfo{}
 			err = proto.Unmarshal(archiveInfoData, archiveInfo)

pdf_ocr.go

@@ -6,7 +6,6 @@ package docconv
 import (
 	"fmt"
 	"io"
-	"io/ioutil"
 	"log"
 	"os"
 	"os/exec"
@@ -39,7 +38,7 @@ func cleanupTemp(tmpDir string) {
 func ConvertPDFImages(path string) (BodyResult, error) {
 	bodyResult := BodyResult{}
 
-	tmp, err := ioutil.TempDir(os.TempDir(), "tmp-imgs-")
+	tmp, err := os.MkdirTemp(os.TempDir(), "tmp-imgs-")
 	if err != nil {
 		bodyResult.err = err
 		return bodyResult, err

pptx.go

@@ -5,7 +5,6 @@ import (
 	"bytes"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"os"
 	"strings"
 )
@@ -28,7 +27,7 @@ func ConvertPptx(r io.Reader) (string, map[string]string, error) {
 		size = si.Size()
 		ra = f
 	} else {
-		b, err := ioutil.ReadAll(r)
+		b, err := io.ReadAll(r)
 		if err != nil {
 			return "", nil, nil
 		}

rtf_test/rtf_test.go

@@ -2,7 +2,7 @@ package rtf_test
 
 import (
 	"bytes"
-	"io/ioutil"
+	"os"
 	"strings"
 	"testing"
 
@@ -10,7 +10,7 @@ import (
 )
 
 func TestConvertRTF(t *testing.T) {
-	data, err := ioutil.ReadFile("testdata/test.rtf")
+	data, err := os.ReadFile("testdata/test.rtf")
 	if err != nil {
 		t.Fatalf("got error %v, want nil", err)
 	}

snappy/snappy_test.go

@@ -9,7 +9,6 @@ import (
 	"flag"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"math/rand"
 	"net/http"
 	"os"
@@ -119,7 +118,7 @@ func TestFramingFormat(t *testing.T) {
 	if _, err := NewWriter(buf).Write(src); err != nil {
 		t.Fatalf("Write: encoding: %v", err)
 	}
-	dst, err := ioutil.ReadAll(NewReader(buf))
+	dst, err := io.ReadAll(NewReader(buf))
 	if err != nil {
 		t.Fatalf("ReadAll: decoding: %v", err)
 	}
@@ -149,7 +148,7 @@ func TestReaderReset(t *testing.T) {
 			continue
 		}
 		r.Reset(strings.NewReader(s))
-		got, err := ioutil.ReadAll(r)
+		got, err := io.ReadAll(r)
 		switch s {
 		case encoded:
 			if err != nil {
@@ -186,7 +185,7 @@ func TestWriterReset(t *testing.T) {
 			failed = true
 			continue
 		}
-		got, err := ioutil.ReadAll(NewReader(buf))
+		got, err := io.ReadAll(NewReader(buf))
 		if err != nil {
 			t.Errorf("#%d: ReadAll: %v", i, err)
 			failed = true
@@ -229,7 +228,7 @@ func benchEncode(b *testing.B, src []byte) {
 }
 
 func readFile(b testing.TB, filename string) []byte {
-	src, err := ioutil.ReadFile(filename)
+	src, err := os.ReadFile(filename)
 	if err != nil {
 		b.Fatalf("failed reading %s: %s", filename, err)
 	}

tidy.go

@@ -2,7 +2,6 @@ package docconv
 
 import (
 	"io"
-	"io/ioutil"
 	"os"
 	"os/exec"
 )
@@ -11,7 +10,7 @@ import (
 // Errors & warnings are deliberately suppressed as underlying tools
 // throw warnings very easily.
 func Tidy(r io.Reader, xmlIn bool) ([]byte, error) {
-	f, err := ioutil.TempFile(os.TempDir(), "docconv")
+	f, err := os.CreateTemp(os.TempDir(), "docconv")
 	if err != nil {
 		return nil, err
 	}