Convert Konsole colorscheme to VS Code settings

konsole2vscode.py

#!/usr/bin/env python

import sys
from typing import Optional, TypeAlias

Color: TypeAlias = tuple[int, int, int]
def parse_rgbcolor(color: str) -> Color:
    r, g, b = color.split(",")
    return int(r), int(g), int(b)

def format_hexcolor(color: Color) -> str:
    return "#" + "".join(f"{c:02x}" for c in color)

def parse_konsole_colorscheme(file: str) -> dict[str, Color]:
    with open(file, "r") as f:
        data = f.read()

    colorscheme = {}

    section = None
    for line in data.split("\n"):
        # parse section headers
        if line.startswith("["):
            section = line[1:-1]
            continue

        # ignore values before a section
        if section is None:
            continue

        # ignore lines without key value pairs
        if "=" not in line:
            continue

        key, value = line.split("=", maxsplit = 1)
        if key == "Color":
            colorscheme[section] = parse_rgbcolor(value)

    return colorscheme

COLORNAMES = [
    "Black", "Red", "Green", "Yellow", "Blue", "Magenta", "Cyan", "White"
]

def convert_colorname_to_vscode(name: str) -> Optional[str]:
    faint = "Faint" in name
    bright = "Intense" in name

    name = name.replace("Faint", "").replace("Intense", "").replace("Color", "").lower()

    # handle background and foreground colors
    if name == "background" or name == "foreground":
        if faint or bright:
            return None
        else:
            return name

    if faint:
        return None
    else:
        index = int(name)
        return ("ansiBright" if bright else "ansi") + COLORNAMES[index]

def print_vscode_colorscheme(colorscheme: dict[str, Color]):
    for key, value in colorscheme.items():
        name = convert_colorname_to_vscode(key)
        if name is None:
            continue

        print(f'"terminal.{name}": "{format_hexcolor(value)}",')

def main():
    args = sys.argv[1:]

    if len(args) != 1:
        print("usage: konsole2vscode <theme.colorscheme> [out.json]")
        sys.exit(1)

    colorscheme = parse_konsole_colorscheme(args[0])
    print_vscode_colorscheme(colorscheme)


if __name__ == '__main__':
    main()