eric6/eric6_editor.py

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

# Copyright (c) 2007 - 2021 Detlev Offenbach <detlev@die-offenbachs.de>
#

"""
Eric6 Editor.

This is the main Python script that performs the necessary initialization
of the MiniEditor module and starts the Qt event loop. This is a standalone
version of the integrated MiniEditor module.
"""

import sys
import os

sys.path.insert(1, os.path.dirname(__file__))

for arg in sys.argv[:]:
    if arg.startswith("--config="):
        import Globals
        configDir = arg.replace("--config=", "")
        Globals.setConfigDir(configDir)
        sys.argv.remove(arg)
    elif arg.startswith("--settings="):
        from PyQt5.QtCore import QSettings
        settingsDir = os.path.expanduser(arg.replace("--settings=", ""))
        if not os.path.isdir(settingsDir):
            os.makedirs(settingsDir)
        QSettings.setPath(QSettings.IniFormat, QSettings.UserScope,
                          settingsDir)
        sys.argv.remove(arg)

# make ThirdParty package available as a packages repository
sys.path.insert(2, os.path.join(os.path.dirname(__file__),
                                "ThirdParty", "Pygments"))
sys.path.insert(2, os.path.join(os.path.dirname(__file__),
                                "ThirdParty", "EditorConfig"))

from Globals import AppInfo

from Toolbox import Startup


def createMainWidget(argv):
    """
    Function to create the main widget.
    
    @param argv list of commandline parameters (list of strings)
    @return reference to the main widget (QWidget)
    """
    from QScintilla.MiniEditor import MiniEditor
    if len(argv) > 1:
        return MiniEditor(argv[1])
    else:
        return MiniEditor()


def main():
    """
    Main entry point into the application.
    """
    from PyQt5.QtGui import QGuiApplication
    QGuiApplication.setDesktopFileName("eric6_editor.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"),
        ("", "name of file to edit")
    ]
    appinfo = AppInfo.makeAppInfo(sys.argv,
                                  "Eric6 Editor",
                                  "",
                                  "Simplified version of the eric6 editor",
                                  options)
    res = Startup.simpleAppStartup(sys.argv,
                                   appinfo,
                                   createMainWidget)
    sys.exit(res)

if __name__ == '__main__':
    main()