add script to update image path

Author: gamerslouis

update_image.py

@@ -0,0 +1,67 @@
+import os
+import re
+import hashlib
+import shutil
+import argparse
+
+# 計算檔案的 MD5 值
+def calculate_md5(file_path):
+    hash_md5 = hashlib.md5()
+    with open(file_path, "rb") as f:
+        for chunk in iter(lambda: f.read(4096), b""):
+            hash_md5.update(chunk)
+    return hash_md5.hexdigest()
+
+# 處理 Markdown 檔案
+def process_markdown(file_path, img_dir, img_url_base):
+    # 確保目標目錄存在
+    os.makedirs(img_dir, exist_ok=True)
+    
+    # 讀取 Markdown 文件
+    with open(file_path, "r", encoding="utf-8") as f:
+        content = f.read()
+
+    # 正則表達式匹配圖片連結 ![alt text](image_path)
+    pattern = r"!\[([^\]]*)\]\(([^)]+\.png)\)"
+    updated_content = content
+
+    for match in re.finditer(pattern, content):
+        alt_text, image_path = match.groups()
+
+        # 確認圖片是否在與 Markdown 檔案相同目錄下
+        if not os.path.isabs(image_path):
+            image_path = os.path.join(os.path.dirname(file_path), image_path)
+
+        if os.path.isfile(image_path):
+            # 計算 MD5 並生成新檔案名
+            md5_hash = calculate_md5(image_path)
+            new_file_name = f"{md5_hash}.png"
+            new_file_path = os.path.join(img_dir, new_file_name)
+
+            # 移動圖片到目標目錄
+            shutil.move(image_path, new_file_path)
+
+            # 更新 Markdown 內容中的圖片路徑
+            new_image_url = f"{img_url_base}/{new_file_name}"
+            updated_content = updated_content.replace(
+                match.group(0), f"![]({new_image_url})" if alt_text == "alt text" else f"![{alt_text}]({new_image_url})"
+            )
+
+    # 將更新後的內容寫回檔案
+    with open(file_path, "w", encoding="utf-8") as f:
+        f.write(updated_content)
+
+    print("Markdown 文件已處理完成！")
+
+if __name__ == "__main__":
+    # 解析命令列參數
+    parser = argparse.ArgumentParser(description="處理 Markdown 檔案中的圖片連結")
+    parser.add_argument("markdown_file", help="Markdown 檔案路徑")
+    args = parser.parse_args()
+
+    markdown_file = os.path.join(os.getcwd(), args.markdown_file)
+
+    script_dir = os.path.dirname(os.path.abspath(__file__))
+    os.chdir(script_dir)
+
+    process_markdown(markdown_file, img_dir="static/img/pages", img_url_base="/img/pages")