feat(files): support creating directories

pkg/files.go

@@ -4,6 +4,7 @@ import (
 	"bytes"
 	"crypto/sha256"
 	"errors"
+	"fmt"
 	"io"
 	"io/fs"
 	"log/slog"
@@ -17,16 +18,37 @@ func init() {
 	files = make([]*FilePromise, 0)
 }
 
+type FileType int
+
+const (
+	FILE = iota
+	DIRECTORY
+)
+
 type FilePromise struct {
 	chain          []Promise
 	contents       Value
 	dirPermissions *Permissions
 	err            error
 	filename       Value
+	fileType       FileType
 	permissions    *Permissions
 	status         Status
 }
 
+func Directory(filename any) *FilePromise {
+	return &FilePromise{
+		chain:          nil,
+		contents:       nil,
+		dirPermissions: nil,
+		err:            nil,
+		filename:       interfaceToTemplateValue(filename),
+		fileType:       DIRECTORY,
+		permissions:    nil,
+		status:         PROMISED,
+	}
+}
+
 func File(filename any) *FilePromise {
 	return &FilePromise{
 		chain:          nil,
@@ -34,6 +56,7 @@ func File(filename any) *FilePromise {
 		dirPermissions: nil,
 		err:            nil,
 		filename:       interfaceToTemplateValue(filename),
+		fileType:       FILE,
 		permissions:    nil,
 		status:         PROMISED,
 	}
@@ -71,11 +94,15 @@ func (f *FilePromise) Promise() Promise {
 
 func (f *FilePromise) Resolve() {
 	filename := f.filename.String()
-	if f.dirPermissions != nil {
 	if f.status, f.err = makeDirectoriesHierarchy(filepath.Dir(filename), f.dirPermissions); f.err != nil {
 		return
 	}
+	switch f.fileType {
+	case DIRECTORY:
+		if f.status, f.err = makeDirectoriesHierarchy(filepath.Clean(filename), f.dirPermissions); f.err != nil {
+			return
 		}
+	case FILE:
 		if f.contents != nil {
 			var sumFile []byte
 			sumFile, f.err = sha256sumOfFile(filename)
@@ -97,6 +124,9 @@ func (f *FilePromise) Resolve() {
 				f.status = REPAIRED
 			}
 		}
+	default:
+		panic(fmt.Errorf("unknown File type enum value %d", f.fileType))
+	}
 	if f.permissions != nil {
 		var status Status
 		status, f.err = f.permissions.resolve(filename)