mirror of
https://github.com/k3s-io/k3s.git
synced 2024-06-07 19:41:36 +00:00
e8381db778
* Update Kubernetes to v1.21.0 * Update to golang v1.16.2 * Update dependent modules to track with upstream * Switch to upstream flannel * Track changes to upstream cloud-controller-manager and FeatureGates Signed-off-by: Brad Davidson <brad.davidson@rancher.com>
93 lines
2.6 KiB
Go
93 lines
2.6 KiB
Go
// Copyright 2019 The Kubernetes Authors.
|
|
// SPDX-License-Identifier: Apache-2.0
|
|
|
|
package yaml
|
|
|
|
import (
|
|
"reflect"
|
|
"strings"
|
|
|
|
"github.com/go-openapi/spec"
|
|
y1_1 "gopkg.in/yaml.v2"
|
|
y1_2 "gopkg.in/yaml.v3"
|
|
)
|
|
|
|
// typeToTag maps OpenAPI schema types to yaml 1.2 tags
|
|
var typeToTag = map[string]string{
|
|
"string": NodeTagString,
|
|
"integer": NodeTagInt,
|
|
"boolean": NodeTagBool,
|
|
"number": NodeTagFloat,
|
|
}
|
|
|
|
// FormatNonStringStyle makes sure that values which parse as non-string values in yaml 1.1
|
|
// are correctly formatted given the Schema type.
|
|
func FormatNonStringStyle(node *Node, schema spec.Schema) {
|
|
if len(schema.Type) != 1 {
|
|
return
|
|
}
|
|
t := schema.Type[0]
|
|
|
|
if !IsYaml1_1NonString(node) {
|
|
return
|
|
}
|
|
switch {
|
|
case t == "string" && schema.Format != "int-or-string":
|
|
if (node.Style&DoubleQuotedStyle == 0) && (node.Style&SingleQuotedStyle == 0) {
|
|
// must quote values so they are parsed as strings
|
|
node.Style = DoubleQuotedStyle
|
|
}
|
|
case t == "boolean" || t == "integer" || t == "number":
|
|
if (node.Style&DoubleQuotedStyle != 0) || (node.Style&SingleQuotedStyle != 0) {
|
|
// must NOT quote the values so they aren't parsed as strings
|
|
node.Style = 0
|
|
}
|
|
default:
|
|
return
|
|
}
|
|
if tag, found := typeToTag[t]; found {
|
|
// make sure the right tag is set
|
|
node.Tag = tag
|
|
}
|
|
}
|
|
|
|
// IsYaml1_1NonString returns true if the value parses as a non-string value in yaml 1.1
|
|
// when unquoted.
|
|
//
|
|
// Note: yaml 1.2 uses different keywords than yaml 1.1. Example: yaml 1.2 interprets
|
|
// `field: on` and `field: "on"` as equivalent (both strings). However Yaml 1.1 interprets
|
|
// `field: on` as on being a bool and `field: "on"` as on being a string.
|
|
// If an input is read with `field: "on"`, and the style is changed from DoubleQuote to 0,
|
|
// it will change the type of the field from a string to a bool. For this reason, fields
|
|
// which are keywords in yaml 1.1 should never have their style changed, as it would break
|
|
// backwards compatibility with yaml 1.1 -- which is what is used by the Kubernetes apiserver.
|
|
func IsYaml1_1NonString(node *Node) bool {
|
|
if node.Kind != y1_2.ScalarNode {
|
|
// not a keyword
|
|
return false
|
|
}
|
|
return IsValueNonString(node.Value)
|
|
}
|
|
|
|
func IsValueNonString(value string) bool {
|
|
if value == "" {
|
|
return false
|
|
}
|
|
if strings.Contains(value, "\n") {
|
|
// multi-line strings will fail to unmarshal
|
|
return false
|
|
}
|
|
// check if the value will unmarshal into a non-string value using a yaml 1.1 parser
|
|
var i1 interface{}
|
|
if err := y1_1.Unmarshal([]byte(value), &i1); err != nil {
|
|
return false
|
|
}
|
|
if reflect.TypeOf(i1) != stringType {
|
|
return true
|
|
}
|
|
|
|
return false
|
|
}
|
|
|
|
var stringType = reflect.TypeOf("string")
|