mirror of
https://github.com/gohugoio/hugo.git
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97 lines
2.3 KiB
Go
97 lines
2.3 KiB
Go
// Copyright 2020 The Hugo Authors. All rights reserved.
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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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// 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 openapi3
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import (
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"io/ioutil"
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gyaml "github.com/ghodss/yaml"
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"github.com/pkg/errors"
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kopenapi3 "github.com/getkin/kin-openapi/openapi3"
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"github.com/gohugoio/hugo/cache/namedmemcache"
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"github.com/gohugoio/hugo/deps"
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"github.com/gohugoio/hugo/parser/metadecoders"
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"github.com/gohugoio/hugo/resources/resource"
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)
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// New returns a new instance of the openapi3-namespaced template functions.
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func New(deps *deps.Deps) *Namespace {
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// TODO1 consolidate when merging that "other branch" -- but be aware of the keys.
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cache := namedmemcache.New()
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deps.BuildStartListeners.Add(
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func() {
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cache.Clear()
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})
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return &Namespace{
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cache: cache,
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deps: deps,
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}
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}
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// Namespace provides template functions for the "openapi3".
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type Namespace struct {
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cache *namedmemcache.Cache
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deps *deps.Deps
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}
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func (ns *Namespace) Unmarshal(r resource.UnmarshableResource) (*kopenapi3.Swagger, error) {
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key := r.Key()
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if key == "" {
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return nil, errors.New("no Key set in Resource")
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}
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v, err := ns.cache.GetOrCreate(key, func() (interface{}, error) {
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f := metadecoders.FormatFromMediaType(r.MediaType())
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if f == "" {
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return nil, errors.Errorf("MIME %q not supported", r.MediaType())
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}
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reader, err := r.ReadSeekCloser()
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if err != nil {
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return nil, err
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}
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defer reader.Close()
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b, err := ioutil.ReadAll(reader)
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if err != nil {
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return nil, err
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}
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s := &kopenapi3.Swagger{}
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switch f {
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case metadecoders.YAML:
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err = gyaml.Unmarshal(b, s)
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default:
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err = metadecoders.Default.UnmarshalTo(b, f, s)
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}
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if err != nil {
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return nil, err
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}
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err = kopenapi3.NewSwaggerLoader().ResolveRefsIn(s, nil)
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return s, err
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})
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if err != nil {
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return nil, err
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}
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return v.(*kopenapi3.Swagger), nil
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}
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