130 lines
2.9 KiB
Go
130 lines
2.9 KiB
Go
// Copyright 2016-2018, Pulumi Corporation.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package config
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import (
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"encoding/json"
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"strings"
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"github.com/pkg/errors"
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"github.com/pulumi/pulumi/pkg/tokens"
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"github.com/pulumi/pulumi/pkg/util/contract"
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)
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type Key struct {
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namespace string
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name string
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}
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// MustMakeKey constructs a config.Key for a given namespace and name. The namespace may not contain a `:`
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func MustMakeKey(namespace string, name string) Key {
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contract.Requiref(!strings.Contains(":", namespace), "namespace", "may not contain a colon")
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return Key{namespace: namespace, name: name}
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}
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func ParseKey(s string) (Key, error) {
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mm, err := tokens.ParseModuleMember(s)
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if err == nil {
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return fromModuleMember(mm)
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}
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if idx := strings.Index(s, ":"); idx > -1 {
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return Key{namespace: s[:idx], name: s[idx+1:]}, nil
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}
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return Key{}, errors.Errorf("could not parse %s as a configuration key", s)
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}
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func fromModuleMember(m tokens.ModuleMember) (Key, error) {
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if m.Module().Name() != tokens.ModuleName("config") {
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return Key{}, errors.Errorf("%s is not in config module", m)
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}
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return Key{
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namespace: m.Module().Package().String(),
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name: m.Name().String(),
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}, nil
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}
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func (k Key) Namespace() string {
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return k.namespace
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}
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func (k Key) Name() string {
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return k.name
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}
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func (k Key) MarshalJSON() ([]byte, error) {
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return json.Marshal(k.String())
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}
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func (k *Key) UnmarshalJSON(b []byte) error {
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var s string
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if err := json.Unmarshal(b, &s); err != nil {
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return errors.Wrap(err, "could not unmarshal key")
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}
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pk, err := ParseKey(s)
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if err != nil {
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return err
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}
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k.namespace = pk.namespace
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k.name = pk.name
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return nil
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}
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func (k Key) MarshalYAML() (interface{}, error) {
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return k.String(), nil
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}
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func (k *Key) UnmarshalYAML(unmarshal func(interface{}) error) error {
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var s string
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if err := unmarshal(&s); err != nil {
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return errors.Wrap(err, "could not unmarshal key")
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}
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pk, err := ParseKey(s)
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if err != nil {
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return err
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}
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k.namespace = pk.namespace
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k.name = pk.name
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return nil
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}
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func (k Key) String() string {
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return k.namespace + ":" + k.name
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}
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type KeyArray []Key
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func (k KeyArray) Len() int {
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return len(k)
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}
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func (k KeyArray) Less(i int, j int) bool {
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if k[i].namespace != k[j].namespace {
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return strings.Compare(k[i].namespace, k[j].namespace) == -1
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}
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return strings.Compare(k[i].name, k[j].name) == -1
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}
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func (k KeyArray) Swap(i int, j int) {
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k[i], k[j] = k[j], k[i]
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}
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