Address deprecation of Strings.Title

By using golang.org/x/text/cases

Author: surik

cmd/crictl/sandbox.go

@@ -28,6 +28,8 @@ import (
 	"github.com/docker/go-units"
 	"github.com/sirupsen/logrus"
 	"github.com/urfave/cli/v2"
+	"golang.org/x/text/cases"
+	"golang.org/x/text/language"
 
 	errorUtils "k8s.io/apimachinery/pkg/util/errors"
 	internalapi "k8s.io/cri-api/pkg/apis"
@@ -509,6 +511,7 @@ func ListPodSandboxes(client internalapi.RuntimeService, opts listOptions) error
 			columnPodRuntime,
 		})
 	}
+	c := cases.Title(language.Und)
 	for _, pod := range r {
 		if opts.quiet {
 			fmt.Printf("%s\n", pod.Id)
@@ -564,7 +567,7 @@ func ListPodSandboxes(client internalapi.RuntimeService, opts listOptions) error
 			}
 		}
 		fmt.Printf("%s: %s\n",
-			strings.Title(strings.ToLower(columnPodRuntime)),
+			c.String(columnPodRuntime),
 			getSandboxesRuntimeHandler(pod))
 
 		fmt.Println()

cmd/crictl/templates.go

@@ -20,16 +20,21 @@ import (
 	"bytes"
 	"encoding/json"
 	"fmt"
-	"strings"
 	"text/template"
+
+	"golang.org/x/text/cases"
+	"golang.org/x/text/language"
 )
 
 func builtinTmplFuncs() template.FuncMap {
+	t := cases.Title(language.Und)
+	l := cases.Lower(language.Und)
+	u := cases.Upper(language.Und)
 	return template.FuncMap{
 		"json":  jsonBuiltinTmplFunc,
-		"title": strings.Title,
-		"lower": strings.ToLower,
-		"upper": strings.ToUpper,
+		"title": t.String,
+		"lower": l.String,
+		"upper": u.String,
 	}
 }
 

go.mod

@@ -19,6 +19,7 @@ require (
 	golang.org/x/net v0.15.0
 	golang.org/x/sys v0.12.0
 	golang.org/x/term v0.12.0
+	golang.org/x/text v0.13.0
 	gopkg.in/yaml.v3 v3.0.1
 	k8s.io/api v0.0.0
 	k8s.io/apimachinery v0.0.0
@@ -83,7 +84,6 @@ require (
 	go.opentelemetry.io/proto/otlp v0.19.0 // indirect
 	golang.org/x/mod v0.12.0 // indirect
 	golang.org/x/oauth2 v0.8.0 // indirect
-	golang.org/x/text v0.13.0 // indirect
 	golang.org/x/time v0.3.0 // indirect
 	golang.org/x/tools v0.12.0 // indirect
 	google.golang.org/appengine v1.6.7 // indirect