feat: converting images to jpg format closes #39

docs: add documentation for `jpg` command

README.md

@@ -27,10 +27,10 @@ mdsanima
 
 The response is printing help how to use this command-line tools.
 
-### CLI
-
 You can use the `mdsanima` command or the `mds` alias, which have the same functionality.
 
+### CLI
+
 Avaiable command for this package:
 
 - `mdsanima` main command showing help
@@ -41,6 +41,7 @@ Avaiable command for this package:
 - `mdsanima logo` append a logo
 - `mdsanima watermark` append a watermark
 - `mdsanima grid` generate grid 2x2
+- `mdsanima jpg` convert to jpg
 
 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

@@ -11,6 +11,7 @@
 
 from .cli_check import cli_check
 from .cli_grid import cli_grid
+from .cli_jpg import cli_jpg
 from .cli_logo import cli_logo
 from .cli_number import cli_number
 from .cli_pixelart import cli_pixelart
@@ -46,5 +47,7 @@ def main_cli():
             cli_watermark()
         if args.command == "grid":
             cli_grid()
+        if args.command == "jpg":
+            cli_jpg()
     except AttributeError:
         parser.print_help()

src/mdsanima_cli/cli_jpg.py

@@ -0,0 +1,76 @@
+# Copyright © 2023 Marcin Różewski MDSANIMA
+
+
+"""This module is designed to converting images to JPG 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_jpg(image_path: str, new_name: str) -> None:
+    """Converting a image to JPG 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 jpg")
+
+    # Save the result.
+    image.save(new_name, "JPEG", exif=exif_bytes)
+
+
+def compute_jpg() -> None:
+    """Computing all images in the current directory to JPG 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 jpg from all images in directory.
+    for file in directory:
+        if file.endswith(png) and not file.endswith(suffix + jpg):
+            new_name = file[:-4] + suffix + jpg
+            convert_jpg(file, new_name)
+            print_cli_proc("CONVERTING", count, file, new_name)
+            count += 1
+        if file.endswith(jpg) and not file.endswith(suffix + jpg):
+            new_name = file[:-4] + suffix + jpg
+            convert_jpg(file, new_name)
+            print_cli_proc("CONVERTING", count, file, new_name)
+            count += 1
+        if file.endswith(webp) and not file.endswith(suffix + jpg):
+            new_name = file[:-5] + suffix + jpg
+            convert_jpg(file, new_name)
+            print_cli_proc("CONVERTING", count, file, new_name)
+            count += 1
+
+
+def cli_jpg() -> None:
+    """Main function for `jpg` command."""
+    print_directory_check("JPG", "CONVERTING TO JPG")
+    ascii_title("processing")
+    compute_jpg()

src/mdsanima_cli/parser.py

@@ -43,6 +43,10 @@
 GP_DESC = "Generate a grid 2x2 from all images in the current directory."
 GP_HELP = "generating a grid 2x2 from all images in the current directory"
 
+JP_PROG = "jpg"
+JP_DESC = "Convert image files to JPG format in the current directory."
+JP_HELP = "converting image files to JPG format in the current directory"
+
 
 def create_argument_parser() -> None:
     """This function creates an argument parser for all available functions in
@@ -127,4 +131,13 @@ def create_argument_parser() -> None:
     )
     grid_parser.set_defaults(command=GP_PROG)
 
+    # Create subparser for jpg command.
+    jpg_parser = subparsers.add_parser(
+        JP_PROG,
+        description=JP_DESC,
+        help=JP_HELP,
+        epilog=AP_TOP_EPIL,
+    )
+    jpg_parser.set_defaults(command=JP_PROG)
+
     return parser