implemented basic templating and default settings

internal/build/traverse.go

@@ -0,0 +1,55 @@
+package build
+
+import (
+	"errors"
+	"fmt"
+	"io/fs"
+	"path/filepath"
+
+	"github.com/ficcdaf/zona/internal/util"
+)
+
+func processFile(inPath string, entry fs.DirEntry, err error, outRoot string) error {
+	if err != nil {
+		return err
+	}
+	if !entry.IsDir() {
+		ext := filepath.Ext(inPath)
+		outPath := util.ReplaceRoot(inPath, outRoot)
+		switch ext {
+		case ".md":
+			fmt.Println("Processing markdown...")
+			outPath = ChangeExtension(outPath, ".html")
+			if err := util.CreateParents(outPath); err != nil {
+				return err
+			}
+			if err := ConvertFile(inPath, outPath); err != nil {
+				return errors.Join(errors.New("Error processing file "+inPath), err)
+			} else {
+				return nil
+			}
+		// If it's not a file we need to process,
+		// we simply copy it to the destination path.
+		default:
+			if err := util.CreateParents(outPath); err != nil {
+				return err
+			}
+			if err := CopyFile(inPath, outPath); err != nil {
+				return errors.Join(errors.New("Error processing file "+inPath), err)
+			} else {
+				return nil
+			}
+		}
+	}
+	// fmt.Printf("Visited: %s\n", inPath)
+	return nil
+}
+
+func Traverse(root string, outRoot string) error {
+	// err := filepath.WalkDir(root, func(path string, entry fs.DirEntry, err error) error {
+	walkFunc := func(path string, entry fs.DirEntry, err error) error {
+		return processFile(path, entry, err, outRoot)
+	}
+	err := filepath.WalkDir(root, walkFunc)
+	return err
+}