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refactor: move from io/ioutil to io and os package

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The io/ioutil package has been deprecated as of Go 1.16, see
https://golang.org/doc/go1.16#ioutil. This commit replaces the existing
io/ioutil functions with their new definitions in io and os packages.

Signed-off-by: Eng Zer Jun <engzerjun@gmail.com>
This commit is contained in:
Eng Zer Jun
2021-09-17 14:12:39 +08:00
parent 40b426b276
commit f0186ff265
25 changed files with 69 additions and 72 deletions
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13
storage/kubernetes/client.go
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@@ -13,7 +13,6 @@ import (
"hash"
"hash/fnv"
"io"
"io/ioutil"
"net"
"net/http"
"os"
@@ -132,7 +131,7 @@ func checkHTTPErr(r *http.Response, validStatusCodes ...int) error {
}
}
body, err := ioutil.ReadAll(io.LimitReader(r.Body, 2<<15)) // 64 KiB
body, err := io.ReadAll(io.LimitReader(r.Body, 2<<15)) // 64 KiB
if err != nil {
return fmt.Errorf("read response body: %v", err)
}
@@ -156,7 +155,7 @@ func checkHTTPErr(r *http.Response, validStatusCodes ...int) error {
// Close the response body. The initial request is drained so the connection can
// be reused.
func closeResp(r *http.Response) {
io.Copy(ioutil.Discard, r.Body)
io.Copy(io.Discard, r.Body)
r.Body.Close()
}
@@ -312,7 +311,7 @@ func newClient(cluster k8sapi.Cluster, user k8sapi.AuthInfo, namespace string, l
if file == "" {
return nil, nil
}
return ioutil.ReadFile(file)
return os.ReadFile(file)
}
if caData, err := data(cluster.CertificateAuthorityData, cluster.CertificateAuthority); err != nil {
@@ -379,7 +378,7 @@ func newClient(cluster k8sapi.Cluster, user k8sapi.AuthInfo, namespace string, l
}
func loadKubeConfig(kubeConfigPath string) (cluster k8sapi.Cluster, user k8sapi.AuthInfo, namespace string, err error) {
data, err := ioutil.ReadFile(kubeConfigPath)
data, err := os.ReadFile(kubeConfigPath)
if err != nil {
err = fmt.Errorf("read %s: %v", kubeConfigPath, err)
return
@@ -425,7 +424,7 @@ func namespaceFromServiceAccountJWT(s string) (string, error) {
}
func namespaceFromFile(path string) (string, error) {
data, err := ioutil.ReadFile(path)
data, err := os.ReadFile(path)
if err != nil {
return "", err
}
@@ -481,7 +480,7 @@ func inClusterConfig() (k8sapi.Cluster, k8sapi.AuthInfo, string, error) {
CertificateAuthority: serviceAccountCAPath,
}
token, err := ioutil.ReadFile(serviceAccountTokenPath)
token, err := os.ReadFile(serviceAccountTokenPath)
if err != nil {
return cluster, k8sapi.AuthInfo{}, "", err
}