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Prepare session dir for upcoming nsmd XDG change

master
Nils 3 years ago
parent
ffd761fc2d
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e1712e33c7
2 changed files with 163 additions and 2 deletions
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  1. 5
      qtgui/mainwindow.py
  2. 160
      qtgui/movesessionroot.py

5
qtgui/mainwindow.py
View File

@ -22,7 +22,6 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
import logging; logger = logging.getLogger(__name__); logger.info("import")
#Standard Library
from sys import argv as sysargv
from sys import exit as sysexit
#Third Party
@ -50,7 +49,7 @@ from .waitdialog import WaitDialog
from .resources import *
from .settings import SettingsDialog
from .jacktransport import JackTransportControls
from .movesessionroot import xdgVersionChange
api.eventLoop = EventLoop()
@ -164,6 +163,8 @@ class MainWindow(QtWidgets.QMainWindow):
self.ui.stack_loaded_session.setContextMenuPolicy(QtCore.Qt.CustomContextMenu)
self.ui.stack_loaded_session.customContextMenuRequested.connect(self.customContextMenu)
#nsmd 1.6.0
xdgVersionChange(self.qtApp)
#Api Callbacks
api.callbacks.sessionClosed.append(self.reactCallback_sessionClosed)

160
qtgui/movesessionroot.py
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@ -0,0 +1,160 @@
#! /usr/bin/env python3
# -*- coding: utf-8 -*-
"""
Copyright 2022, Nils Hilbricht, Germany ( https://www.hilbricht.net )
This file is part of the Laborejo Software Suite ( https://www.laborejo.org ).
This application is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
"""
import logging; logger = logging.getLogger(__name__); logger.info("import")
#Standard Library
import pathlib
from os import getenv, listdir, access, W_OK, R_OK, rmdir
from subprocess import check_output
from shutil import move as shutil_move
from sys import exit as sysexit
from sys import argv as sysargv
from uuid import uuid4
#Third Party
from PyQt5 import QtCore, QtGui, QtWidgets
logger.info(f"PyQt Version: {QtCore.PYQT_VERSION_STR}")
def nsmVersionGreater160()->bool:
maj, min, patch = check_output(["nsmd", "--version"]).decode().split(" ")[1].rstrip("\n").split(".")
maj = int(maj)
min = int(min)
if maj <= 1 and min < 6:
return False
else:
return True
def xdgVersionChange(qtApp):
"""Before we start the engine:
nsmd >= 1.6.0 changed the default session root from ~/NSM Sessions to XDG.
It will still prioritize the old path, if found.
We ask the user to move his files to the correct location now so that the engine can use it this run.
This check can be made independently from any --session-root parameter and without nsmd started.
"""
if any("--session-root" in param for param in sysargv):
#This is not our problem anymore.
return
if not nsmVersionGreater160():
return #see docstring
parent = qtApp.desktop()
try:
oldexists = pathlib.Path("~/NSM Sessions").expanduser().exists()
except RuntimeError: #no home dir!
oldexists = False
xdgdatahome = getenv("$XDG_DATA_HOME")
if not xdgdatahome:
try:
xdgdatahome = pathlib.Path("~/.local/share").expanduser()
except RuntimeError: #If there is no xdg env and no home dir let us crash and exit.
logger.error("There is neither $XDG_DATA_HOME nor a home directory! Cannot start in this environment")
#self._callSysExit(). Do not use this because it stores window settings, in a settings dir which might not be available under the circumstances above.
sysexit(0) #directly afterwards @atexit is handled, but this function does not return.
if not oldexists:
return
olddir = pathlib.Path("~/NSM Sessions").expanduser()
if not olddir.is_dir():
logger.error(f"{olddir} exists but it not a directory. Cannot continue with moving session directories. Please handle it yourself.")
errorString = QtCore.QCoreApplication.translate("movesessionroot", "{} exists but it not a directory. Cannot continue with moving session directories. Please handle it yourself.".format(olddir))
QtWidgets.QMessageBox.critical(parent, errorString)
return
newdir = pathlib.Path(xdgdatahome, "nsm")
newexists = newdir.exists()
title = QtCore.QCoreApplication.translate("movesessionroot", "Default session directory changed")
if newexists: #Must merge.
text = QtCore.QCoreApplication.translate("movesessionroot", "Detected both the new NSM 1.6.0 official session directory:\n{}\nAND the old one:\n{}\n\nDo you want Agordejo to move your old files and try to merge them with the new sessions? (Recommended)\n\nYou now have the chance to manually make a backup of your files before pressing 'Yes'".format(newdir, olddir))
else: #Simply move.
text = QtCore.QCoreApplication.translate("movesessionroot", "With NSM version 1.6.0 the official session directory moved to:\n{}\nYou are still using the old one:\n\n{}\nDo you want Agordejo to move your files? (Recommended)\n\nYou now have the chance to manually make a backup of your files before pressing 'Yes'".format(newdir, olddir))
userAllowedMove = QtWidgets.QMessageBox.warning(parent, title, text, QtWidgets.QMessageBox.Yes|QtWidgets.QMessageBox.No)
if not userAllowedMove == QtWidgets.QMessageBox.Yes:
return
#Test for read and write permissions
if not access(olddir, R_OK):
logger.error(f"{olddir} doesn't have READ permissions. Cannot continue with moving session directories. Please handle it yourself.")
t = QtCore.QCoreApplication.translate("movesessionroot", "{} doesn't have READ permissions.\nCannot continue moving session directories. Please handle it yourself.".format(olddir))
QtWidgets.QMessageBox.critical(parent, title, t, QtWidgets.QMessageBox.Ok)
return
if not access(olddir, W_OK):
logger.error(f"{olddir} doesn't have WRITE permissions. Cannot continue with moving session directories. Please handle it yourself.")
t = QtCore.QCoreApplication.translate("movesessionroot", "{} doesn't have WRITE permissions.\nCannot continue moving session directories. Please handle it yourself.".format(olddir))
QtWidgets.QMessageBox.critical(parent, title, t, QtWidgets.QMessageBox.Ok)
return
if newexists and not access(newdir, R_OK):
logger.error(f"{newdir} doesn't have READ permissions. Cannot continue with moving session directories. Please handle it yourself.")
t = QtCore.QCoreApplication.translate("movesessionroot", "{} doesn't have READ permissions.\nCannot continue moving session directories. Please handle it yourself.".format(newdir))
QtWidgets.QMessageBox.critical(parent, title, t, QtWidgets.QMessageBox.Ok)
return
if newexists and not access(newdir, W_OK):
logger.error(f"{newdir} doesn't have WRITE permissions. Cannot continue with moving session directories. Please handle it yourself.")
t = QtCore.QCoreApplication.translate("movesessionroot", "{} doesn't have WRITE permissions.\nCannot continue moving session directories. Please handle it yourself.".format(newdir))
QtWidgets.QMessageBox.critical(parent, title, t, QtWidgets.QMessageBox.Ok)
return
#Tests done. Attempting to actually move the dir.
if newexists: #We need to merge two directories
if not newdir.is_dir():
logger.error(f"{newdir} exists but it not a directory. Cannot continue with moving session directories. Please handle it yourself.")
t = QtCore.QCoreApplication.translate("movesessionroot", "{} exists but it not a directory.\nCannot continue moving session directories. Please handle it yourself.".format(newdir))
QtWidgets.QMessageBox.critical(parent, title, t, QtWidgets.QMessageBox.Ok)
return
#Are the file conflicts?
oldlist = listdir(olddir)
newlist = listdir(newdir)
if set(oldlist).intersection( set(newlist) ): #Same sessions in both directory. We take the easy way out.
unique_newdir = pathlib.Path(newdir, "backup-" + str(uuid4()))
logger.info(f"Moving and renaming {olddir} to {unique_newdir} as new session root")
shutil_move(olddir, unique_newdir) #this moves and renames the old ~/NSM Sessions. It will disappear from the home dir.
else: #no. we can just move. But we need to move the contents, not the olddir itself into the newdir
for oldsession in oldlist:
shutil_move(pathlib.Path(olddir, oldsession), newdir) #this moves and renames the old ~/NSM Sessions. It will disappear from the home dir.
else: #the new directory does not exist yet. We can move it.
logger.info(f"Moving and renaming {olddir} to {newdir} as new session root")
shutil_move(olddir, newdir) #this moves and renames the old ~/NSM Sessions. It will disappear from the home dir.
#If for some reason the old dir is empty and still exists, do this:
if olddir.exists():
try:
rmdir(olddir) #will raise OSError if not empty.
except OSError:
logger.error(f"We tried to move and merge {olddir} to {newdir} but afterwards the source directory was not empty. There is nothing we can do here. Please handle it yourself. Please look out for incomplete data.")
t = QtCore.QCoreApplication.translate("movesessionroot", "We tried to move and merge {} to {} but afterwards the source directory was not empty. There is nothing we can do here. Please handle it yourself. Please look out for incomplete data.".format(olddir, newdir))
QtWidgets.QMessageBox.critical(parent, title, t, QtWidgets.QMessageBox.Ok)
return
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