Fix /static performance regression from Hugo 0.103.0

In `v0.103.0` we added support for `resources.PostProcess` for all file types, not just HTML. We had benchmarks that said we were fine in that department, but those did not consider the static file syncing.

This fixes that by:

* Making sure that the /static syncer always gets its own file system without any checks for the post process token.
* For dynamic files (e.g. rendered HTML files) we add an additional check to make sure that we skip binary files (e.g. images)

Fixes #10328

1 files changed, 6 insertions, 2 deletions

diff --git a/hugofs/hasbytes_fs.go b/hugofs/hasbytes_fs.go
index b5f82877e..3d32a828f 100644
--- a/hugofs/hasbytes_fs.go
+++ b/hugofs/hasbytes_fs.go
@@ -27,12 +27,13 @@ var (
 
 type hasBytesFs struct {
 	afero.Fs
+	shouldCheck      func(name string) bool
 	hasBytesCallback func(name string, match bool)
 	pattern          []byte
 }
 
-func NewHasBytesReceiver(delegate afero.Fs, hasBytesCallback func(name string, match bool), pattern []byte) afero.Fs {
-	return &hasBytesFs{Fs: delegate, hasBytesCallback: hasBytesCallback, pattern: pattern}
+func NewHasBytesReceiver(delegate afero.Fs, shouldCheck func(name string) bool, hasBytesCallback func(name string, match bool), pattern []byte) afero.Fs {
+	return &hasBytesFs{Fs: delegate, shouldCheck: shouldCheck, hasBytesCallback: hasBytesCallback, pattern: pattern}
 }
 
 func (fs *hasBytesFs) UnwrapFilesystem() afero.Fs {
@@ -56,6 +57,9 @@ func (fs *hasBytesFs) OpenFile(name string, flag int, perm os.FileMode) (afero.F
 }
 
 func (fs *hasBytesFs) wrapFile(f afero.File) afero.File {
+	if !fs.shouldCheck(f.Name()) {
+		return f
+	}
 	return &hasBytesFile{
 		File: f,
 		hbw: &hugio.HasBytesWriter{