add clean.py file

clean.py

@@ -0,0 +1,34 @@
+import os
+import shutil
+
+
+assets_dir = './assets'
+journal_dir = './journals'
+pages_dir = './pages'
+to_delete_dir = './to_delete'
+
+if not os.path.exists(to_delete_dir):
+    os.makedirs(to_delete_dir)
+
+assets_files = os.listdir(assets_dir)
+referenced_files = []
+
+
+for dirname in [journal_dir, pages_dir]:
+    for filename in os.listdir(dirname):
+        if filename.endswith('.md'):
+            # 打开 .md 文件
+            with open(os.path.join(dirname, filename),encoding="utf-8") as f:
+                # 遍历文件中的每一行
+                for line in f:
+                    # 遍历 assets 目录中的所有文件
+                    for asset in assets_files:
+                        # 如果这一行包含了 assets 目录中的某个文件的名称，则将这个文件的名称加入到 referenced_files 列表中
+                        if asset in line:
+                            referenced_files.append(asset)
+
+
+for asset in assets_files:
+    if asset not in referenced_files and not asset.endswith(".edn"):
+        print(asset)
+        shutil.move(os.path.join(assets_dir, asset), to_delete_dir)