add script to convert entire folder to webp

README.md

@@ -130,13 +130,27 @@ bundle install
 Please see the [theme's docs](https://github.com/cotes2020/jekyll-theme-chirpy#documentation).
 
 ## Images
+
 ### Converting to WebP
+
 I've been using the `cwebp` command to convert images to webp format. You can install it with homebrew.
-```
+
+```bash
 brew install webp
 ```
 
-This command converts a jpeg to a webp file at 70% compression.
+This command converts a jpeg to a webp file at 70% compression:
+
+```bash
+cwebp -q 70 image_1.jpeg -o image_1.webp
 ```
-cwebp -q 70 0010_S2Ark7u.jpeg -o 0010_S2Ark7u.webp
+
+### Batch Converting an Entire Folder of Images to WebP
+
+If you have a whole folder of images you want to convert to WebP format, you can use the `convert_to_webp.py` script. It will take all `.jpeg` and `.jpg` files in a folder, convert them to `.webp`, and place them in a new subfolder called `webp_images` inside the same folder.
+
+To use the Python script, run the following command:
+
+```bash
+python convert_to_webp.py /path/to/your/images_folder
 ```

convert_to_webp.py

@@ -0,0 +1,44 @@
+import os
+import sys
+import subprocess
+from typing import NoReturn
+
+
+def convert_images_to_webp(source_folder: str) -> None:
+    # Check if the source folder exists
+    if not os.path.exists(source_folder):
+        print(f"The folder {source_folder} does not exist.")
+        return
+
+    # Create a new folder inside the source folder for the WebP files
+    destination_folder: str = os.path.join(source_folder, "webp_images")
+    if not os.path.exists(destination_folder):
+        os.makedirs(destination_folder)
+
+    # Loop through each file in the source folder
+    for filename in os.listdir(source_folder):
+        if filename.lower().endswith(
+            (".jpeg", ".jpg")
+        ):  # Add more extensions if needed
+            source_path: str = os.path.join(source_folder, filename)
+            destination_path: str = os.path.join(
+                destination_folder, f"{os.path.splitext(filename)[0]}.webp"
+            )
+
+            # Run the cwebp command
+            subprocess.run(["cwebp", "-q", "70", source_path, "-o", destination_path])
+
+            print(f"Converted {filename} to {destination_path}")
+
+
+def main() -> NoReturn:
+    if len(sys.argv) != 2:
+        print("Usage: python convert_to_webp.py <folder_path>")
+        sys.exit(1)
+
+    folder_path: str = sys.argv[1]
+    convert_images_to_webp(folder_path)
+
+
+if __name__ == "__main__":
+    main()