Blog Performance Optimization Notes

from pathlib import Pathimport subprocessimport shutilimport argparsecovert_these_types = (".png", ".jpg", ".jpeg")def convert_to_webp(input_dir: Path, output_dir: Path):    """    Convert files in the given directory (and subdirectories) to .webp.    Output files are saved under the output directory, preserving the directory structure.    """    for file_path in input_dir.rglob("*"):        # Check whether the file is one of the types to convert        if file_path.suffix.lower() in covert_these_types:            # Build the output path; the / operator joins output_dir and relative_path into a new path object            relative_path = file_path.relative_to(input_dir)            output_path = output_dir / relative_path.with_suffix(".webp")            output_path.parent.mkdir(parents=True, exist_ok=True)            # Convert with the cwebp command            try:                subprocess.run(                    ["cwebp", str(file_path), "-o", str(output_path)], check=True                )            except subprocess.CalledProcessError as e:                print(f"Failed to convert {file_path}: {e}")        else:            output_path = output_dir / relative_path            shutil.move(file_path, output_dir)def main():    # Create the command-line argument parser    parser = argparse.ArgumentParser(        description="Convert PNG, JPG, and JPEG files to WEBP format."    )    parser.add_argument(        "input_dir", type=str, help="Input directory containing images to convert"    )    parser.add_argument(        "output_dir", type=str, help="Output directory to save converted images"    )    args = parser.parse_args()    input_dir = Path(args.input_dir)    output_dir = Path(args.output_dir)    convert_to_webp(input_dir, output_dir)if __name__ == "__main__":    main()

[USAGE]python ./cwebp.py ../source/img/unused/ ./output

ffmpeg -i input.gif -c vp9 -b:v 0 -crf 41 output.webm

╭───┬───────────────────┬──────┬───────────╮│ # │       name        │ type │   size    │├───┼───────────────────┼──────┼───────────┤│ 0 │ gallery           │ dir  │  66.2 MiB ││ 1 │ gallery_origin    │ dir  │ 186.8 MiB ││ 2 │ thumbnails        │ dir  │  19.6 MiB ││ 3 │ thumbnails_origin │ dir  │  88.0 MiB ││ 4 │ unused            │ dir  │  18.4 MiB │╰───┴───────────────────┴──────┴───────────╯

lazy_load:  enable: true  onlypost: false

hexo.extend.injector.register(  "body_end",  '<script src="//instant.page/5.2.0" type="module" integrity="sha384-jnZyxPjiipYXnSU0ygqeac2q7CVYMbh84q0uHVRRxEtvFPiQYbXWUorga2aqZJ0z"></script>',  "default",);