Revert "Revert "Allow rendering static files to disk and dynamic to memory in server mode""

This reverts commit 64b7b7a89753a39661219b2fcb92d7f185a03f63.

3 files changed, 23 insertions, 10 deletions

diff --git a/hugolib/filesystems/basefs.go b/hugolib/filesystems/basefs.go
index 6e3f88a4b..0290d2e1c 100644
--- a/hugolib/filesystems/basefs.go
+++ b/hugolib/filesystems/basefs.go
@@ -71,6 +71,9 @@ type BaseFs struct {
 	// A read-only filesystem starting from the project workDir.
 	WorkDir afero.Fs
 
+	// The filesystem used for renderStaticToDisk.
+	PublishFsStatic afero.Fs
+
 	theBigFs *filesystemsCollector
 
 	// Locks.
@@ -438,15 +441,17 @@ func NewBase(p *paths.Paths, logger loggers.Logger, options ...func(*BaseFs) err
 
 	publishFs := hugofs.NewBaseFileDecorator(afero.NewBasePathFs(fs.Destination, p.AbsPublishDir))
 	sourceFs := hugofs.NewBaseFileDecorator(afero.NewBasePathFs(fs.Source, p.WorkingDir))
+	publishFsStatic := afero.NewBasePathFs(fs.Source, p.AbsPublishDir)
 
 	// Same as sourceFs, but no decoration. This is what's used by os.ReadDir etc.
 	workDir := afero.NewBasePathFs(afero.NewReadOnlyFs(fs.Source), p.WorkingDir)
 
 	b := &BaseFs{
-		SourceFs:  sourceFs,
-		WorkDir:   workDir,
-		PublishFs: publishFs,
-		buildMu:   lockedfile.MutexAt(filepath.Join(p.WorkingDir, lockFileBuild)),
+		SourceFs:        sourceFs,
+		WorkDir:         workDir,
+		PublishFs:       publishFs,
+		PublishFsStatic: publishFsStatic,
+		buildMu:         lockedfile.MutexAt(filepath.Join(p.WorkingDir, lockFileBuild)),
 	}
 
 	for _, opt := range options {
diff --git a/hugolib/pages_process.go b/hugolib/pages_process.go
index d33f70d8e..47687eaad 100644
--- a/hugolib/pages_process.go
+++ b/hugolib/pages_process.go
@@ -33,9 +33,10 @@ func newPagesProcessor(h *HugoSites, sp *source.SourceSpec) *pagesProcessor {
 	procs := make(map[string]pagesCollectorProcessorProvider)
 	for _, s := range h.Sites {
 		procs[s.Lang()] = &sitePagesProcessor{
-			m:           s.pageMap,
-			errorSender: s.h,
-			itemChan:    make(chan any, config.GetNumWorkerMultiplier()*2),
+			m:                  s.pageMap,
+			errorSender:        s.h,
+			itemChan:           make(chan interface{}, config.GetNumWorkerMultiplier()*2),
+			renderStaticToDisk: h.Cfg.GetBool("renderStaticToDisk"),
 		}
 	}
 	return &pagesProcessor{
@@ -118,6 +119,8 @@ type sitePagesProcessor struct {
 	ctx       context.Context
 	itemChan  chan any
 	itemGroup *errgroup.Group
+
+	renderStaticToDisk bool
 }
 
 func (p *sitePagesProcessor) Process(item any) error {
@@ -162,7 +165,12 @@ func (p *sitePagesProcessor) copyFile(fim hugofs.FileMetaInfo) error {
 
 	defer f.Close()
 
-	return s.publish(&s.PathSpec.ProcessingStats.Files, target, f)
+	fs := s.PublishFs
+	if p.renderStaticToDisk {
+		fs = s.PublishFsStatic
+	}
+
+	return s.publish(&s.PathSpec.ProcessingStats.Files, target, f, fs)
 }
 
 func (p *sitePagesProcessor) doProcess(item any) error {
diff --git a/hugolib/site.go b/hugolib/site.go
index efa936830..d7b5cb64e 100644
--- a/hugolib/site.go
+++ b/hugolib/site.go
@@ -1829,10 +1829,10 @@ func (s *Site) lookupTemplate(layouts ...string) (tpl.Template, bool) {
 	return nil, false
 }
 
-func (s *Site) publish(statCounter *uint64, path string, r io.Reader) (err error) {
+func (s *Site) publish(statCounter *uint64, path string, r io.Reader, fs afero.Fs) (err error) {
 	s.PathSpec.ProcessingStats.Incr(statCounter)
 
-	return helpers.WriteToDisk(filepath.Clean(path), r, s.BaseFs.PublishFs)
+	return helpers.WriteToDisk(filepath.Clean(path), r, fs)
 }
 
 func (s *Site) kindFromFileInfoOrSections(fi *fileInfo, sections []string) string {