hugo/hugolib/pagebundler.go
Bjørn Erik Pedersen 87b16abd93
Add HUGO_NUMWORKERMULTIPLIER
And use that to calculate number of workers, if set, else fall back to number of logical CPUs.

Also tweak the relevant related settings to match the new setup.

Also remove the setting of `runtime.GOMAXPROCS` as this has been the default behaviour since Go 1.5.

Fixes #5814
2019-04-05 10:21:25 +02:00

206 lines
4.5 KiB
Go

// Copyright 2019 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.
package hugolib
import (
"context"
"fmt"
"math"
"path/filepath"
"github.com/gohugoio/hugo/config"
_errors "github.com/pkg/errors"
"golang.org/x/sync/errgroup"
)
type siteContentProcessor struct {
site *Site
handleContent contentHandler
ctx context.Context
// The input file bundles.
fileBundlesChan chan *bundleDir
// The input file singles.
fileSinglesChan chan *fileInfo
// These assets should be just copied to destination.
fileAssetsChan chan pathLangFile
numWorkers int
// The output Pages
pagesChan chan *pageState
// Used for partial rebuilds (aka. live reload)
// Will signal replacement of pages in the site collection.
partialBuild bool
}
func (s *siteContentProcessor) processBundle(b *bundleDir) {
select {
case s.fileBundlesChan <- b:
case <-s.ctx.Done():
}
}
func (s *siteContentProcessor) processSingle(fi *fileInfo) {
select {
case s.fileSinglesChan <- fi:
case <-s.ctx.Done():
}
}
func (s *siteContentProcessor) processAsset(asset pathLangFile) {
select {
case s.fileAssetsChan <- asset:
case <-s.ctx.Done():
}
}
func newSiteContentProcessor(ctx context.Context, partialBuild bool, s *Site) *siteContentProcessor {
numWorkers := config.GetNumWorkerMultiplier() * 3
numWorkers = int(math.Ceil(float64(numWorkers) / float64(len(s.h.Sites))))
return &siteContentProcessor{
ctx: ctx,
partialBuild: partialBuild,
site: s,
handleContent: newHandlerChain(s),
fileBundlesChan: make(chan *bundleDir, numWorkers),
fileSinglesChan: make(chan *fileInfo, numWorkers),
fileAssetsChan: make(chan pathLangFile, numWorkers),
numWorkers: numWorkers,
pagesChan: make(chan *pageState, numWorkers),
}
}
func (s *siteContentProcessor) closeInput() {
close(s.fileSinglesChan)
close(s.fileBundlesChan)
close(s.fileAssetsChan)
}
func (s *siteContentProcessor) process(ctx context.Context) error {
g1, ctx := errgroup.WithContext(ctx)
g2, ctx := errgroup.WithContext(ctx)
// There can be only one of these per site.
g1.Go(func() error {
for p := range s.pagesChan {
if p.s != s.site {
panic(fmt.Sprintf("invalid page site: %v vs %v", p.s, s))
}
p.forceRender = s.partialBuild
if p.forceRender {
s.site.replacePage(p)
} else {
s.site.addPage(p)
}
}
return nil
})
for i := 0; i < s.numWorkers; i++ {
g2.Go(func() error {
for {
select {
case f, ok := <-s.fileSinglesChan:
if !ok {
return nil
}
err := s.readAndConvertContentFile(f)
if err != nil {
return err
}
case <-ctx.Done():
return ctx.Err()
}
}
})
g2.Go(func() error {
for {
select {
case file, ok := <-s.fileAssetsChan:
if !ok {
return nil
}
f, err := s.site.BaseFs.Content.Fs.Open(file.Filename())
if err != nil {
return _errors.Wrap(err, "failed to open assets file")
}
filename := filepath.Join(s.site.GetTargetLanguageBasePath(), file.Path())
err = s.site.publish(&s.site.PathSpec.ProcessingStats.Files, filename, f)
f.Close()
if err != nil {
return err
}
case <-ctx.Done():
return ctx.Err()
}
}
})
g2.Go(func() error {
for {
select {
case bundle, ok := <-s.fileBundlesChan:
if !ok {
return nil
}
err := s.readAndConvertContentBundle(bundle)
if err != nil {
return err
}
case <-ctx.Done():
return ctx.Err()
}
}
})
}
err := g2.Wait()
close(s.pagesChan)
if err != nil {
return err
}
if err := g1.Wait(); err != nil {
return err
}
return nil
}
func (s *siteContentProcessor) readAndConvertContentFile(file *fileInfo) error {
ctx := &handlerContext{source: file, pages: s.pagesChan}
return s.handleContent(ctx).err
}
func (s *siteContentProcessor) readAndConvertContentBundle(bundle *bundleDir) error {
ctx := &handlerContext{bundle: bundle, pages: s.pagesChan}
return s.handleContent(ctx).err
}