--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/VirtualEnv/VirtualenvManager.py Sat Jun 09 17:19:37 2018 +0200
@@ -0,0 +1,138 @@
+# -*- coding: utf-8 -*-
+
+# Copyright (c) 2018 Detlev Offenbach <detlev@die-offenbachs.de>
+#
+
+"""
+Module implementing a class to manage Python virtual environments.
+"""
+
+from __future__ import unicode_literals
+
+import os
+import sys
+import shutil
+
+from PyQt5.QtCore import pyqtSlot, QObject
+from PyQt5.QtWidgets import QDialog
+
+from E5Gui import E5MessageBox
+
+import Preferences
+
+
+class VirtualenvManager(QObject):
+ """
+ Class implementing an object to manage Python virtual environments.
+ """
+ def __init__(self, parent=None):
+ """
+ Constructor
+
+ @param parent reference to the parent object
+ @type QWidget
+ """
+ super(VirtualenvManager, self).__init__(parent)
+
+ self.__ui = parent
+
+ self.__virtualEnvironments = {}
+ self.__virtualEnvironmentInterpreters = {}
+ environments = Preferences.toDict(Preferences.Prefs.settings.value(
+ "PyVenv/Environments", {}))
+ interpreters = Preferences.toDict(Preferences.Prefs.settings.value(
+ "PyVenv/Interpreters", {}))
+ for venvName, venvExe in interpreters.items():
+ # remove all environments, that don't exist anymore
+ if os.access(venvExe, os.X_OK):
+ self.__virtualEnvironmentInterpreters[venvName] = venvExe
+ self.__virtualEnvironments[venvName] = environments[venvName]
+
+ defaultPy = sys.executable.replace("w.exe", ".exe")
+ if defaultPy not in self.__virtualEnvironmentInterpreters.values():
+ self.__virtualEnvironmentInterpreters["<default>"] = defaultPy
+ self.__virtualEnvironments["<default>"] = ""
+
+ self.__updateSettings()
+
+ def __updateSettings(self):
+ """
+ Private slot to save the virtual environments.
+ """
+ Preferences.Prefs.settings.setValue(
+ "PyVenv/Environments", self.__virtualEnvironments)
+ Preferences.Prefs.settings.setValue(
+ "PyVenv/Interpreters", self.__virtualEnvironmentInterpreters)
+
+ @pyqtSlot()
+ def createVirtualEnv(self):
+ """
+ Public slot to create a new virtual environment.
+ """
+ from .VirtualenvConfigurationDialog import \
+ VirtualenvConfigurationDialog
+
+ dlg = VirtualenvConfigurationDialog()
+ if dlg.exec_() == QDialog.Accepted:
+ (pyvenv, args, name, openTarget, createLog, createScript,
+ targetDir, interpreter) = dlg.getData()
+
+ # now do the call
+ from .VirtualenvExecDialog import VirtualenvExecDialog
+ dia = VirtualenvExecDialog(pyvenv, targetDir, name, openTarget,
+ createLog, createScript, interpreter,
+ self)
+ dia.show()
+ dia.start(args)
+ dia.exec_()
+
+ def addVirtualEnv(self, venvName, venvDirectory):
+ """
+ Public method to add a virtual environment.
+
+ @param venvName logical name for the virtual environment
+ @type str
+ @param venvDirectory directory of the virtual envoronment
+ @type str
+ """
+ if venvName in self.__virtualEnvironments:
+ ok = E5MessageBox.yesNo(
+ None,
+ self.tr("Add Virtual Environment"),
+ self.tr("""A virtual environment named <b>{0}</b> exists"""
+ """ already. Shall it be replaced?""")
+ .format(venvName),
+ icon=E5MessageBox.Warning)
+ if not ok:
+ return
+
+ from .VirtualenvInterpreterSelectionDialog import \
+ VirtualenvInterpreterSelectionDialog
+ dlg = VirtualenvInterpreterSelectionDialog(venvName, venvDirectory)
+ if dlg.exec_() == QDialog.Accepted:
+ venvExe = dlg.getData()
+ self.__virtualEnvironmentInterpreters[venvName] = venvExe
+ self.__virtualEnvironments[venvName] = venvDirectory
+
+ self.__updateSettings()
+
+ def deleteVirtualEnv(self, venvName):
+ """
+ Public method to delete a virtual environment from disk.
+
+ @param venvName logical name for the virtual environment
+ @type str
+ """
+ if venvName in self.__virtualEnvironments:
+ ok = E5MessageBox.yesNo(
+ None,
+ self.tr("Delete Virtual Environment"),
+ self.tr("""Do you really want to delete the virtual"""
+ """ environment <b>{0}</b>?<br>Path: {1}""")
+ .format(venvName, self.__virtualEnvironments[venvName]))
+ if ok:
+ shutil.rmtree(self.__virtualEnvironments[venvName], True)
+ del self.__virtualEnvironments[venvName]
+ del self.__virtualEnvironmentInterpreters[venvName]
+
+ self.__updateSettings()
