Remove io/ioutil references

io/ioutil is deprecated since Go 1.16

Signed-off-by: Austin Vazquez <[email protected]>

Author: austinvazquez

schema/loader.go

@@ -19,7 +19,6 @@ import (
 	"encoding/json"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"net/http"
 	"strings"
 
@@ -68,7 +67,7 @@ func (factory *fsLoaderFactory) refContents(ref gojsonreference.JsonReference) (
 	}
 	defer f.Close()
 
-	return ioutil.ReadAll(f)
+	return io.ReadAll(f)
 }
 
 // fsLoader implements gojsonschema.JSONLoader by reading the document named by source from a fsLoaderFactory.

schema/spec_test.go

@@ -18,7 +18,6 @@ import (
 	"bytes"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"net/url"
 	"os"
 	"path/filepath"
@@ -183,7 +182,7 @@ func parseExample(lang, body string) (e example) {
 }
 
 func extractExamples(rd io.Reader) ([]example, error) {
-	p, err := ioutil.ReadAll(rd)
+	p, err := io.ReadAll(rd)
 	if err != nil {
 		return nil, err
 	}

schema/validator.go

@@ -19,7 +19,6 @@ import (
 	"encoding/json"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"regexp"
 
 	digest "github.com/opencontainers/go-digest"
@@ -52,7 +51,7 @@ func (e ValidationError) Error() string {
 
 // Validate validates the given reader against the schema of the wrapped media type.
 func (v Validator) Validate(src io.Reader) error {
-	buf, err := ioutil.ReadAll(src)
+	buf, err := io.ReadAll(src)
 	if err != nil {
 		return errors.Wrap(err, "unable to read the document file")
 	}
@@ -100,7 +99,7 @@ func (v unimplemented) Validate(src io.Reader) error {
 func validateManifest(r io.Reader) error {
 	header := v1.Manifest{}
 
-	buf, err := ioutil.ReadAll(r)
+	buf, err := io.ReadAll(r)
 	if err != nil {
 		return errors.Wrapf(err, "error reading the io stream")
 	}
@@ -130,7 +129,7 @@ func validateManifest(r io.Reader) error {
 func validateDescriptor(r io.Reader) error {
 	header := v1.Descriptor{}
 
-	buf, err := ioutil.ReadAll(r)
+	buf, err := io.ReadAll(r)
 	if err != nil {
 		return errors.Wrapf(err, "error reading the io stream")
 	}
@@ -152,7 +151,7 @@ func validateDescriptor(r io.Reader) error {
 func validateIndex(r io.Reader) error {
 	header := v1.Index{}
 
-	buf, err := ioutil.ReadAll(r)
+	buf, err := io.ReadAll(r)
 	if err != nil {
 		return errors.Wrapf(err, "error reading the io stream")
 	}
@@ -179,7 +178,7 @@ func validateIndex(r io.Reader) error {
 func validateConfig(r io.Reader) error {
 	header := v1.Image{}
 
-	buf, err := ioutil.ReadAll(r)
+	buf, err := io.ReadAll(r)
 	if err != nil {
 		return errors.Wrapf(err, "error reading the io stream")
 	}