updated error logging to include list of allowed

Signed-off-by: Janit Sriganeshaelankovan <janits_27@hotmail.com>

pkg/chart/v2/util/create.go

@@ -823,7 +823,7 @@ func validateChartName(name string) error {
 		return fmt.Errorf("chart name must be between 1 and %d characters", maxChartNameLength)
 	}
 	if !chartName.MatchString(name) {
-		return fmt.Errorf("chart name must match the regular expression %q", chartName.String())
+		return fmt.Errorf("chart name must use only lowercase letters or digits optionally with dash separators")
 	}
 	return nil
 }

pkg/lint/rules/chartfile.go

@@ -125,7 +125,7 @@ func validateChartName(cf *chart.Metadata) error {
 		return fmt.Errorf("chart name must be between 1 and %d characters", maxChartNameLength)
 	}
 	if !chartName.MatchString(cf.Name) {
-		return fmt.Errorf("chart name must use only lowercase letters, digits, and dashes (no underscores, dots, or uppercase letters)")
+		return fmt.Errorf("chart name must use only lowercase letters or digits optionally with dash separators")
 	}
 	return nil
 }

pkg/lint/rules/chartfile_test.go

@@ -78,7 +78,6 @@ func TestValidateChartName(t *testing.T) {
 	}
 
 	failTests := []*chart.Metadata{
-
 		{Name: ""},                       // empty
 		{Name: "ChartName"},              // uppercase
 		{Name: "chart_name"},             // underscore
@@ -90,15 +89,13 @@ func TestValidateChartName(t *testing.T) {
 		{Name: "chart/name"},             // forward slash
 		{Name: "chart\\name"},            // backslash
 		{Name: "chart name"},             // space
-		{Name: strings.Repeat("a", 251)}, // 241 chars — too long
+		{Name: strings.Repeat("a", 251)}, // 251 chars — too long
-
 	}
 
 	successTests := []*chart.Metadata{
-		{Name: "nginx"},
+		{Name: "chartname"},
-		{Name: "nginx-lego"},
+		{Name: "chart-name"},
-		{Name: "aws-cluster-autoscaler"},
+		{Name: "chart-name-success"},
-		{Name: "abc123"},
 		{Name: "chartname123"},
 		{Name: strings.Repeat("a", 250)},
 	}