add typst export

pkg/cat/internal.go

@@ -8,32 +8,41 @@ import (
 	"strings"
 )
 
-func (c Cater) dir(dir string) error {
+func (c Cater) dir(dir string) (e entry, err error) {
 	files, err := os.ReadDir(dir)
 	if err != nil {
-		return err
+		return
 	}
 
+	e.fqname = dir
+	e.name = name(dir)
+	e.children = []entry{}
+
 	for _, file := range files {
 		i, err := file.Info()
 		if err != nil {
-			continue
+			return e, err
 		}
 		path := path.Join(dir, i.Name())
 
+		var ent entry
 		if !file.IsDir() {
-			c.file(path)
+			ent, err = c.file(path)
 		} else {
-			c.dir(path)
+			ent, err = c.dir(path)
 		}
+		if err != nil {
+			return e, err
+		}
+		e.children = append(e.children, ent)
 	}
-	return nil
+	return
 }
 
-func (c Cater) file(filePath string) error {
+func (c Cater) file(filePath string) (e entry, err error) {
 	file, err := os.Open(filePath)
 	if err != nil {
-		return err
+		return
 	}
 	defer file.Close()
 
@@ -44,7 +53,7 @@ func (c Cater) file(filePath string) error {
 	for {
 		line, err := reader.ReadString('\n')
 		if err != nil && err != io.EOF {
-			return err
+			return e, err
 		}
 		sb.WriteString(line)
 		if err == io.EOF {
@@ -52,7 +61,15 @@ func (c Cater) file(filePath string) error {
 		}
 	}
 
-	c[filePath] = sb.String()
+	e.fqname = filePath
+	e.name = name(filePath)
+	e.content = sb.String()
+	e.children = []entry{}
 
-	return nil
+	return
+}
+
+func name(name string) string {
+	ps := strings.Split(name, "/")
+	return ps[len(ps)-1]
 }