mirror of
https://github.com/gohugoio/hugo.git
synced 2024-07-07 17:46:05 +00:00
81c13171a9
As pointed out by the linter, some exported functions and types are missing doc comments. The linter warnings have been reduced from 194 to 116. Not all missing comments have been added in this commit though.
129 lines
3.1 KiB
Go
129 lines
3.1 KiB
Go
// Copyright 2015 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 hugolib
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import (
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"errors"
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"fmt"
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"github.com/gohugoio/hugo/source"
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)
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var handlers []Handler
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// MetaHandler abstracts reading and converting functionality of a Handler.
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type MetaHandler interface {
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// Read the Files in and register
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Read(*source.File, *Site, HandleResults)
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// Generic Convert Function with coordination
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Convert(interface{}, *Site, HandleResults)
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Handle() Handler
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}
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// HandledResults is a channel for HandledResult.
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type HandleResults chan<- HandledResult
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// NewMetaHandler creates a MetaHandle for a given extention.
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func NewMetaHandler(in string) *MetaHandle {
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x := &MetaHandle{ext: in}
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x.Handler()
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return x
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}
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// MetaHandle is a generic MetaHandler that internally uses
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// the globally registered handlers for handling specific file types.
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type MetaHandle struct {
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handler Handler
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ext string
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}
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func (mh *MetaHandle) Read(f *source.File, s *Site, results HandleResults) {
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if h := mh.Handler(); h != nil {
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results <- h.Read(f, s)
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return
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}
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results <- HandledResult{err: errors.New("No handler found"), file: f}
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}
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// Convert handles the convertion of files and pages.
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func (mh *MetaHandle) Convert(i interface{}, s *Site, results HandleResults) {
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h := mh.Handler()
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if f, ok := i.(*source.File); ok {
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results <- h.FileConvert(f, s)
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return
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}
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if p, ok := i.(*Page); ok {
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if p == nil {
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results <- HandledResult{err: errors.New("file resulted in a nil page")}
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return
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}
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if h == nil {
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results <- HandledResult{err: fmt.Errorf("No handler found for page '%s'. Verify the markup is supported by Hugo.", p.FullFilePath())}
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return
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}
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results <- h.PageConvert(p)
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}
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}
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// Handler finds the registered handler for the used extention.
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func (mh *MetaHandle) Handler() Handler {
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if mh.handler == nil {
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mh.handler = FindHandler(mh.ext)
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// if no handler found, use default handler
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if mh.handler == nil {
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mh.handler = FindHandler("*")
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}
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}
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return mh.handler
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}
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// FindHandler finds a Handler in the globally registered handlers.
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func FindHandler(ext string) Handler {
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for _, h := range Handlers() {
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if HandlerMatch(h, ext) {
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return h
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}
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}
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return nil
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}
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// HandlerMatch checks if the given extention matches.
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func HandlerMatch(h Handler, ext string) bool {
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for _, x := range h.Extensions() {
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if ext == x {
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return true
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}
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}
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return false
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}
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// RegisterHandler adds a handler to the globally registered ones.
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func RegisterHandler(h Handler) {
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handlers = append(handlers, h)
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}
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// Handlers returns the globally registered handlers.
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func Handlers() []Handler {
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return handlers
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}
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