src/eric7/eric7_shell.py

#!/usr/bin/env python3
# -*- coding: utf-8 -*-

# Copyright (c) 2017 - 2023 Detlev Offenbach <detlev@die-offenbachs.de>
#

"""
eric Shell.

This is the main Python script that performs the necessary initialization
of the ShellWindow module and starts the Qt event loop.
"""

import os
import sys

from PyQt6.QtGui import QGuiApplication

originalPathString = os.getenv("PATH")

for arg in sys.argv[:]:
    if arg.startswith("--config="):
        from eric7 import Globals

        configDir = arg.replace("--config=", "")
        Globals.setConfigDir(configDir)
        sys.argv.remove(arg)
    elif arg.startswith("--settings="):
        from PyQt6.QtCore import QSettings

        settingsDir = os.path.expanduser(arg.replace("--settings=", ""))
        if not os.path.isdir(settingsDir):
            os.makedirs(settingsDir)
        QSettings.setPath(
            QSettings.Format.IniFormat, QSettings.Scope.UserScope, settingsDir
        )
        sys.argv.remove(arg)

from eric7.Globals import AppInfo
from eric7.Toolbox import Startup


def createMainWidget(argv):  # noqa: U100
    """
    Function to create the main widget.

    @param argv list of commandline parameters (list of strings)
    @return reference to the main widget (QWidget)
    """
    from eric7.QScintilla.ShellWindow import ShellWindow

    return ShellWindow(originalPathString)


def main():
    """
    Main entry point into the application.
    """
    QGuiApplication.setDesktopFileName("eric7_shell.desktop")

    options = [
        (
            "--config=configDir",
            "use the given directory as the one containing the config files",
        ),
        (
            "--settings=settingsDir",
            "use the given directory to store the settings files",
        ),
    ]
    appinfo = AppInfo.makeAppInfo(
        sys.argv,
        "eric Shell",
        "",
        "Stand alone version of the eric interpreter shell",
        options,
    )
    res = Startup.simpleAppStartup(sys.argv, appinfo, createMainWidget)
    sys.exit(res)


if __name__ == "__main__":
    main()