feat: converting images to webp format closes #13

docs: add documentation for `webp` command

README.md

@@ -43,6 +43,7 @@ Avaiable command for this package:
 - `mdsanima grid` generate grid 2x2
 - `mdsanima jpg` convert to jpg
 - `mdsanima png` convert to png
+- `mdsanima webp` convert to webp
 
 The `pixelart` command works in folder that have only `.png` images and convert this images to pixel
 art with creating the new file and appending the suffix `pixelart` to original file name.

src/mdsanima_cli/__init__.py

@@ -18,6 +18,7 @@
 from .cli_png import cli_png
 from .cli_uuid import cli_uuid
 from .cli_watermark import cli_watermark
+from .cli_webp import cli_webp
 
 
 def main_cli():
@@ -52,5 +53,7 @@ def main_cli():
             cli_jpg()
         if args.command == "png":
             cli_png()
+        if args.command == "webp":
+            cli_webp()
     except AttributeError:
         parser.print_help()

src/mdsanima_cli/cli_webp.py

@@ -0,0 +1,76 @@
+# Copyright © 2023 Marcin Różewski MDSANIMA
+
+
+"""This module is designed to converting images to WebP format from all images
+in the curreny directory. It operates within a specified folder and can process
+all images at once.
+"""
+
+
+from __future__ import annotations
+
+import os
+
+from PIL import Image
+
+from .ascii import ascii_title
+from .exif import get_exif_bytes
+from .mprints import print_cli_proc
+
+from .cli_check import print_directory_check
+
+
+def convert_webp(image_path: str, new_name: str) -> None:
+    """Converting a image to WebP format, and then save the result with a new
+    file name. Adding exif data.
+    """
+
+    # Open image file.
+    image = Image.open(image_path)
+
+    # Add exif data.
+    exif_bytes = get_exif_bytes("with webp")
+
+    # Save the result.
+    image.save(new_name, exif=exif_bytes)
+
+
+def compute_webp() -> None:
+    """Computing all images in the current directory to WebP format and save
+    them with a new file name.
+    """
+
+    # Get directory stats info.
+    directory = os.listdir()
+    count = 1
+
+    # New file name suffix for generated files.
+    suffix = "_converted"
+    png = ".png"
+    jpg = ".jpg"
+    webp = ".webp"
+
+    # Checking extension and compute convert webp from all images in directory.
+    for file in directory:
+        if file.endswith(png) and not file.endswith(suffix + webp):
+            new_name = file[:-4] + suffix + webp
+            convert_webp(file, new_name)
+            print_cli_proc("CONVERTING", count, file, new_name)
+            count += 1
+        if file.endswith(jpg) and not file.endswith(suffix + webp):
+            new_name = file[:-4] + suffix + webp
+            convert_webp(file, new_name)
+            print_cli_proc("CONVERTING", count, file, new_name)
+            count += 1
+        if file.endswith(webp) and not file.endswith(suffix + webp):
+            new_name = file[:-5] + suffix + webp
+            convert_webp(file, new_name)
+            print_cli_proc("CONVERTING", count, file, new_name)
+            count += 1
+
+
+def cli_webp() -> None:
+    """Main function for `webp` command."""
+    print_directory_check("WEBP", "CONVERTING TO WEBP")
+    ascii_title("processing")
+    compute_webp()

src/mdsanima_cli/parser.py

@@ -51,6 +51,10 @@
 PNG_AP_DESC = "Convert image files to PNG format in the current directory."
 PNG_AP_HELP = "converting image files to PNG format in the current dir"
 
+WEB_AP_PROG = "webp"
+WEB_AP_DESC = "Convert image files to WEBP format in the current directory."
+WEB_AP_HELP = "converting image files to WEBP format in the current dir"
+
 
 def create_argument_parser() -> None:
     """This function creates an argument parser for all available functions in
@@ -153,4 +157,13 @@ def create_argument_parser() -> None:
     )
     png_parser.set_defaults(command=PNG_AP_PROG)
 
+    # Create subparser for webp command.
+    webp_parser = subparsers.add_parser(
+        WEB_AP_PROG,
+        description=WEB_AP_DESC,
+        help=WEB_AP_HELP,
+        epilog=AP_TOP_EPIL,
+    )
+    webp_parser.set_defaults(command=WEB_AP_PROG)
+
     return parser