fix: (toToml) renders int as float

This commit fixes the issue where the yaml.Unmarshaller converts all int values into float64, this passes in option to decoder,
which enables conversion of int into .
Signed-off-by: Althaf M <althafm@outlook.com>

cmd/helm/template_test.go

@@ -22,6 +22,18 @@ import (
 	"testing"
 )
 
+func TestTemplateCmdWithToml(t *testing.T) {
+
+	tests := []cmdTestCase{
+		{
+			name:   "check toToml function rendering",
+			cmd:    fmt.Sprintf("template '%s'", "testdata/testcharts/issue-totoml"),
+			golden: "output/issue-totoml.txt",
+		},
+	}
+	runTestCmd(t, tests)
+}
+
 var chartPath = "testdata/testcharts/subchart"
 
 func TestTemplateCmd(t *testing.T) {

cmd/helm/testdata/output/issue-totoml.txt

@@ -0,0 +1,8 @@
+---
+# Source: issue-totoml/templates/configmap.yaml
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: issue-totoml
+data: |
+  key = 13

cmd/helm/testdata/testcharts/issue-totoml/Chart.yaml

@@ -0,0 +1,3 @@
+apiVersion: v2
+name: issue-totoml
+version: 0.1.0

cmd/helm/testdata/testcharts/issue-totoml/templates/configmap.yaml

@@ -0,0 +1,6 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: issue-totoml
+data: |
+  {{ .Values.global | toToml }}

cmd/helm/testdata/testcharts/issue-totoml/values.yaml

@@ -0,0 +1,2 @@
+global:
+  key: 13

pkg/chart/loader/load.go

@@ -18,13 +18,13 @@ package loader
 
 import (
 	"bytes"
+	"encoding/json"
+	"github.com/pkg/errors"
 	"log"
 	"os"
 	"path/filepath"
-	"strings"
-
-	"github.com/pkg/errors"
 	"sigs.k8s.io/yaml"
+	"strings"
 
 	"helm.sh/helm/v4/pkg/chart"
 )
@@ -104,7 +104,10 @@ func LoadFiles(files []*BufferedFile) (*chart.Chart, error) {
 			}
 		case f.Name == "values.yaml":
 			c.Values = make(map[string]interface{})
-			if err := yaml.Unmarshal(f.Data, &c.Values); err != nil {
+			if err := yaml.Unmarshal(f.Data, &c.Values, func(d *json.Decoder) *json.Decoder {
+				d.UseNumber()
+				return d
+			}); err != nil {
 				return c, errors.Wrap(err, "cannot load values.yaml")
 			}
 		case f.Name == "values.schema.json":

pkg/chartutil/dependencies_test.go

@@ -15,8 +15,10 @@ limitations under the License.
 package chartutil
 
 import (
+	"encoding/json"
 	"os"
 	"path/filepath"
+	"reflect"
 	"sort"
 	"strconv"
 	"testing"
@@ -237,9 +239,24 @@ func TestProcessDependencyImportValues(t *testing.T) {
 			if b := strconv.FormatBool(pv); b != vv {
 				t.Errorf("failed to match imported bool value %v with expected %v for key %q", b, vv, kk)
 			}
+		case json.Number:
+			if fv, err := pv.Float64(); err == nil {
+				if sfv := strconv.FormatFloat(fv, 'f', -1, 64); sfv != vv {
+					t.Errorf("failed to match imported float value %v with expected %v for key %q", sfv, vv, kk)
+				}
+			}
+			if iv, err := pv.Int64(); err == nil {
+				if siv := strconv.FormatInt(iv, 10); siv != vv {
+					t.Errorf("failed to match imported int value %v with expected %v for key %q", siv, vv, kk)
+				}
+			}
+			if pv.String() != vv {
+				t.Errorf("failed to match imported string value %q with expected %q for key %q", pv, vv, kk)
+			}
 		default:
 			if pv != vv {
 				t.Errorf("failed to match imported string value %q with expected %q for key %q", pv, vv, kk)
+				t.Error(reflect.TypeOf(pv))
 			}
 		}
 	}
@@ -309,9 +326,14 @@ func TestProcessDependencyImportValuesMultiLevelPrecedence(t *testing.T) {
 			if s := strconv.FormatFloat(pv, 'f', -1, 64); s != vv {
 				t.Errorf("failed to match imported float value %v with expected %v", s, vv)
 			}
+		case json.Number:
+			if pv.String() != vv {
+				t.Errorf("failed to match imported string value %q with expected %q", pv, vv)
+			}
 		default:
 			if pv != vv {
 				t.Errorf("failed to match imported string value %q with expected %q", pv, vv)
+				t.Error(reflect.TypeOf(pv))
 			}
 		}
 	}

pkg/chartutil/values.go

@@ -17,13 +17,13 @@ limitations under the License.
 package chartutil
 
 import (
+	"encoding/json"
 	"fmt"
+	"github.com/pkg/errors"
 	"io"
 	"os"
-	"strings"
-
-	"github.com/pkg/errors"
 	"sigs.k8s.io/yaml"
+	"strings"
 
 	"helm.sh/helm/v4/pkg/chart"
 )
@@ -105,7 +105,10 @@ func tableLookup(v Values, simple string) (Values, error) {
 
 // ReadValues will parse YAML byte data into a Values.
 func ReadValues(data []byte) (vals Values, err error) {
-	err = yaml.Unmarshal(data, &vals)
+	err = yaml.Unmarshal(data, &vals, func(d *json.Decoder) *json.Decoder {
+		d.UseNumber()
+		return d
+	})
 	if len(vals) == 0 {
 		vals = Values{}
 	}