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107 lines
3.7 KiB
Go
107 lines
3.7 KiB
Go
// Copyright 2019 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 resource
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import (
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"github.com/gohugoio/hugo/media"
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"github.com/gohugoio/hugo/common/hugio"
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)
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// Cloner is an internal template and not meant for use in the templates. It
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// may change without notice.
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type Cloner interface {
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WithNewBase(base string) Resource
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}
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// Resource represents a linkable resource, i.e. a content page, image etc.
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type Resource interface {
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resourceBase
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// Permalink represents the absolute link to this resource.
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Permalink() string
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// RelPermalink represents the host relative link to this resource.
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RelPermalink() string
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// ResourceType is the resource type. For most file types, this is the main
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// part of the MIME type, e.g. "image", "application", "text" etc.
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// For content pages, this value is "page".
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ResourceType() string
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// Name is the logical name of this resource. This can be set in the front matter
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// metadata for this resource. If not set, Hugo will assign a value.
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// This will in most cases be the base filename.
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// So, for the image "/some/path/sunset.jpg" this will be "sunset.jpg".
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// The value returned by this method will be used in the GetByPrefix and ByPrefix methods
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// on Resources.
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Name() string
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// Title returns the title if set in front matter. For content pages, this will be the expected value.
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Title() string
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// Resource specific data set by Hugo.
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// One example would be.Data.Digest for fingerprinted resources.
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Data() interface{}
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// Params set in front matter for this resource.
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Params() map[string]interface{}
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}
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// resourceBase pulls out the minimal set of operations to define a Resource,
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// to simplify testing etc.
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type resourceBase interface {
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// MediaType is this resource's MIME type.
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MediaType() media.Type
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}
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// ResourcesLanguageMerger describes an interface for merging resources from a
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// different language.
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type ResourcesLanguageMerger interface {
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MergeByLanguage(other Resources) Resources
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// Needed for integration with the tpl package.
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MergeByLanguageInterface(other interface{}) (interface{}, error)
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}
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// Identifier identifies a resource.
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type Identifier interface {
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Key() string
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}
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// ContentResource represents a Resource that provides a way to get to its content.
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// Most Resource types in Hugo implements this interface, including Page.
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// This should be used with care, as it will read the file content into memory, but it
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// should be cached as effectively as possible by the implementation.
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type ContentResource interface {
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resourceBase
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// Content returns this resource's content. It will be equivalent to reading the content
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// that RelPermalink points to in the published folder.
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// The return type will be contextual, and should be what you would expect:
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// * Page: template.HTML
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// * JSON: String
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// * Etc.
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Content() (interface{}, error)
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}
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// OpenReadSeekCloser allows setting some other way (than reading from a filesystem)
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// to open or create a ReadSeekCloser.
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type OpenReadSeekCloser func() (hugio.ReadSeekCloser, error)
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// ReadSeekCloserResource is a Resource that supports loading its content.
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type ReadSeekCloserResource interface {
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resourceBase
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ReadSeekCloser() (hugio.ReadSeekCloser, error)
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}
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