diff -r 3fc8dfeb6ebe -r b99e7fd55fd3 src/eric7/MultiProject/MultiProjectFile.py
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/eric7/MultiProject/MultiProjectFile.py Thu Jul 07 11:23:56 2022 +0200
@@ -0,0 +1,113 @@
+# -*- coding: utf-8 -*-
+
+# Copyright (c) 2021 - 2022 Detlev Offenbach <detlev@die-offenbachs.de>
+#
+
+"""
+Module implementing a class representing the multi project JSON file.
+"""
+
+import json
+import os
+import time
+import typing
+
+from PyQt6.QtCore import QObject
+
+from EricWidgets import EricMessageBox
+from EricGui.EricOverrideCursor import EricOverridenCursor
+
+import Preferences
+
+MultiProject = typing.TypeVar("MultiProject")
+
+
+class MultiProjectFile(QObject):
+ """
+ Class representing the multi project JSON file.
+ """
+ def __init__(self, multiProject: MultiProject, parent: QObject = None):
+ """
+ Constructor
+
+ @param multiProject reference to the multi project object
+ @type MultiProject
+ @param parent reference to the parent object (defaults to None)
+ @type QObject (optional)
+ """
+ super().__init__(parent)
+ self.__multiProject = multiProject
+
+ def writeFile(self, filename: str) -> bool:
+ """
+ Public method to write the multi project data to a multi project
+ JSON file.
+
+ @param filename name of the multi project file
+ @type str
+ @return flag indicating a successful write
+ @rtype bool
+ """
+ name = os.path.splitext(os.path.basename(filename))[0]
+
+ multiProjectDict = {}
+ multiProjectDict["header"] = {
+ "comment": f"eric multi project file for multi project {name}",
+ }
+
+ if Preferences.getMultiProject("TimestampFile"):
+ multiProjectDict["header"]["saved"] = (
+ time.strftime('%Y-%m-%d, %H:%M:%S')
+ )
+
+ multiProjectDict["description"] = self.__multiProject.description
+ multiProjectDict["projects"] = list(self.__multiProject.getProjects())
+
+ try:
+ jsonString = json.dumps(multiProjectDict, indent=2)
+ with open(filename, "w") as f:
+ f.write(jsonString)
+ except (TypeError, OSError) as err:
+ with EricOverridenCursor():
+ EricMessageBox.critical(
+ None,
+ self.tr("Save Multi Project File"),
+ self.tr(
+ "<p>The multi project file <b>{0}</b> could not be "
+ "written.</p><p>Reason: {1}</p>"
+ ).format(filename, str(err))
+ )
+ return False
+
+ return True
+
+ def readFile(self, filename: str) -> bool:
+ """
+ Public method to read the multi project data from a multi project
+ JSON file.
+
+ @param filename name of the multi project file
+ @type str
+ @return flag indicating a successful read
+ @rtype bool
+ """
+ try:
+ with open(filename, "r") as f:
+ jsonString = f.read()
+ multiProjectDict = json.loads(jsonString)
+ except (OSError, json.JSONDecodeError) as err:
+ EricMessageBox.critical(
+ None,
+ self.tr("Read Multi Project File"),
+ self.tr(
+ "<p>The multi project file <b>{0}</b> could not be "
+ "read.</p><p>Reason: {1}</p>"
+ ).format(filename, str(err))
+ )
+ return False
+
+ self.__multiProject.description = multiProjectDict["description"]
+ for project in multiProjectDict["projects"]:
+ self.__multiProject.addProject(project)
+
+ return True
