diff options
Diffstat (limited to 'pkg/k8s.io/apimachinery/pkg/runtime/conversion.go')
| -rw-r--r-- | pkg/k8s.io/apimachinery/pkg/runtime/conversion.go | 196 |
1 files changed, 196 insertions, 0 deletions
diff --git a/pkg/k8s.io/apimachinery/pkg/runtime/conversion.go b/pkg/k8s.io/apimachinery/pkg/runtime/conversion.go new file mode 100644 index 000000000..9c03d6774 --- /dev/null +++ b/pkg/k8s.io/apimachinery/pkg/runtime/conversion.go @@ -0,0 +1,196 @@ +/* +Copyright 2014 The Kubernetes Authors. + +Licensed under the Apache License, Version 2.0 (the "License"); +you may not use this file except in compliance with the License. +You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + +Unless required by applicable law or agreed to in writing, software +distributed under the License is distributed on an "AS IS" BASIS, +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +See the License for the specific language governing permissions and +limitations under the License. +*/ + +// Package runtime defines conversions between generic types and structs to map query strings +// to struct objects. +package runtime + +import ( + "fmt" + "reflect" + "strconv" + "strings" + + "github.com/containers/podman/v4/pkg/k8s.io/apimachinery/pkg/conversion" +) + +// DefaultMetaV1FieldSelectorConversion auto-accepts metav1 values for name and namespace. +// A cluster scoped resource specifying namespace empty works fine and specifying a particular +// namespace will return no results, as expected. +func DefaultMetaV1FieldSelectorConversion(label, value string) (string, string, error) { + switch label { + case "metadata.name": + return label, value, nil + case "metadata.namespace": + return label, value, nil + default: + return "", "", fmt.Errorf("%q is not a known field selector: only %q, %q", label, "metadata.name", "metadata.namespace") + } +} + +// JSONKeyMapper uses the struct tags on a conversion to determine the key value for +// the other side. Use when mapping from a map[string]* to a struct or vice versa. +func JSONKeyMapper(key string, sourceTag, destTag reflect.StructTag) (string, string) { + if s := destTag.Get("json"); len(s) > 0 { + return strings.SplitN(s, ",", 2)[0], key + } + if s := sourceTag.Get("json"); len(s) > 0 { + return key, strings.SplitN(s, ",", 2)[0] + } + return key, key +} + +func Convert_Slice_string_To_string(in *[]string, out *string, s conversion.Scope) error { + if len(*in) == 0 { + *out = "" + return nil + } + *out = (*in)[0] + return nil +} + +func Convert_Slice_string_To_int(in *[]string, out *int, s conversion.Scope) error { + if len(*in) == 0 { + *out = 0 + return nil + } + str := (*in)[0] + i, err := strconv.Atoi(str) + if err != nil { + return err + } + *out = i + return nil +} + +// Convert_Slice_string_To_bool will convert a string parameter to boolean. +// Only the absence of a value (i.e. zero-length slice), a value of "false", or a +// value of "0" resolve to false. +// Any other value (including empty string) resolves to true. +func Convert_Slice_string_To_bool(in *[]string, out *bool, s conversion.Scope) error { + if len(*in) == 0 { + *out = false + return nil + } + switch { + case (*in)[0] == "0", strings.EqualFold((*in)[0], "false"): + *out = false + default: + *out = true + } + return nil +} + +// Convert_Slice_string_To_bool will convert a string parameter to boolean. +// Only the absence of a value (i.e. zero-length slice), a value of "false", or a +// value of "0" resolve to false. +// Any other value (including empty string) resolves to true. +func Convert_Slice_string_To_Pointer_bool(in *[]string, out **bool, s conversion.Scope) error { + if len(*in) == 0 { + boolVar := false + *out = &boolVar + return nil + } + switch { + case (*in)[0] == "0", strings.EqualFold((*in)[0], "false"): + boolVar := false + *out = &boolVar + default: + boolVar := true + *out = &boolVar + } + return nil +} + +func string_to_int64(in string) (int64, error) { + return strconv.ParseInt(in, 10, 64) +} + +func Convert_string_To_int64(in *string, out *int64, s conversion.Scope) error { + if in == nil { + *out = 0 + return nil + } + i, err := string_to_int64(*in) + if err != nil { + return err + } + *out = i + return nil +} + +func Convert_Slice_string_To_int64(in *[]string, out *int64, s conversion.Scope) error { + if len(*in) == 0 { + *out = 0 + return nil + } + i, err := string_to_int64((*in)[0]) + if err != nil { + return err + } + *out = i + return nil +} + +func Convert_string_To_Pointer_int64(in *string, out **int64, s conversion.Scope) error { + if in == nil { + *out = nil + return nil + } + i, err := string_to_int64(*in) + if err != nil { + return err + } + *out = &i + return nil +} + +func Convert_Slice_string_To_Pointer_int64(in *[]string, out **int64, s conversion.Scope) error { + if len(*in) == 0 { + *out = nil + return nil + } + i, err := string_to_int64((*in)[0]) + if err != nil { + return err + } + *out = &i + return nil +} + +func RegisterStringConversions(s *Scheme) error { + if err := s.AddConversionFunc((*[]string)(nil), (*string)(nil), func(a, b interface{}, scope conversion.Scope) error { + return Convert_Slice_string_To_string(a.(*[]string), b.(*string), scope) + }); err != nil { + return err + } + if err := s.AddConversionFunc((*[]string)(nil), (*int)(nil), func(a, b interface{}, scope conversion.Scope) error { + return Convert_Slice_string_To_int(a.(*[]string), b.(*int), scope) + }); err != nil { + return err + } + if err := s.AddConversionFunc((*[]string)(nil), (*bool)(nil), func(a, b interface{}, scope conversion.Scope) error { + return Convert_Slice_string_To_bool(a.(*[]string), b.(*bool), scope) + }); err != nil { + return err + } + if err := s.AddConversionFunc((*[]string)(nil), (*int64)(nil), func(a, b interface{}, scope conversion.Scope) error { + return Convert_Slice_string_To_int64(a.(*[]string), b.(*int64), scope) + }); err != nil { + return err + } + return nil +} |