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Add MediaType and a crude implementation
See gohugoio#2828
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// Copyright 2017-present The Hugo Authors. All rights reserved. | ||
// | ||
// 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. | ||
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package media | ||
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import ( | ||
"fmt" | ||
) | ||
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type Types []Type | ||
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// A media type (also known as MIME type and content type) is a two-part identifier for | ||
// file formats and format contents transmitted on the Internet. | ||
// For Hugo's use case, we use the top-level type name / subtype name + suffix. | ||
// One example would be image/jpeg+jpg | ||
// If suffix is not provided, the sub type will be used. | ||
// See // https://en.wikipedia.org/wiki/Media_type | ||
type Type struct { | ||
Type string // i.e. text | ||
SubType string // i.e. html | ||
Suffix string // i.e html | ||
} | ||
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// Key return a key used to identify this media type. Hugo will register a set of | ||
// default media types. These can be overridden by the user in the configuration, | ||
// by defining a media type with the same Key. | ||
func (m Type) Key() string { | ||
if m.Suffix != "" { | ||
return fmt.Sprintf("%s/%s+%s", m.Type, m.SubType, m.Suffix) | ||
} | ||
return fmt.Sprintf("%s/%s", m.Type, m.SubType) | ||
} | ||
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func (m Type) String() string { | ||
return m.Key() | ||
} | ||
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var ( | ||
HtmlType = Type{"text", "html", "html"} | ||
RSSType = Type{"application", "rss", "xml"} | ||
) | ||
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// DefaultMediaTypes holds a default set of media types by Hugo. | ||
// These can be ovverriden, and more added if needed, in the Hugo configuration file. | ||
// The final media type set set will also be added as extensions to mime so | ||
// they will be recognised by the built-in server in Hugo. | ||
var DefaultMediaTypes = Types{ | ||
HtmlType, | ||
RSSType, | ||
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// TODO(bep) output | ||
} | ||
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// TODO(bep) output mime.AddExtensionType | ||
// TODO(bep) text/template vs html/template |