Create pages from _content.gotmpl

Closes #12427
Closes #12485
Closes #6310
Closes #5074

hugofs/walk.go

@@ -23,6 +23,7 @@ import (
 	"github.com/gohugoio/hugo/common/herrors"
 	"github.com/gohugoio/hugo/common/loggers"
 	"github.com/gohugoio/hugo/common/paths"
+	"github.com/gohugoio/hugo/media"
 
 	"github.com/spf13/afero"
 )
@@ -50,7 +51,8 @@ type WalkwayConfig struct {
 	Root string
 
 	// The logger to use.
-	Logger loggers.Logger
+	Logger     loggers.Logger
+	PathParser *paths.PathParser
 
 	// One or both of these may be pre-set.
 	Info       FileMetaInfo               // The start info.
@@ -72,6 +74,10 @@ func NewWalkway(cfg WalkwayConfig) *Walkway {
 		panic("fs must be set")
 	}
 
+	if cfg.PathParser == nil {
+		cfg.PathParser = media.DefaultPathParser
+	}
+
 	logger := cfg.Logger
 	if logger == nil {
 		logger = loggers.NewDefault()
@@ -161,7 +167,7 @@ func (w *Walkway) walk(path string, info FileMetaInfo, dirEntries []FileMetaInfo
 		dirEntries = DirEntriesToFileMetaInfos(fis)
 		for _, fi := range dirEntries {
 			if fi.Meta().PathInfo == nil {
-				fi.Meta().PathInfo = paths.Parse("", filepath.Join(pathRel, fi.Name()))
+				fi.Meta().PathInfo = w.cfg.PathParser.Parse("", filepath.Join(pathRel, fi.Name()))
 			}
 		}