Merge pull request #14 Upgrade to 3.2

Upgrade to 3.2

README.md

@@ -53,3 +53,29 @@ Carefull, this application install PostgreSQL and change the default configurati
 ## LDAP connexion
 
 It doesn't work yet, but while [it looks doable](https://docs.weblate.org/en/latest/admin/auth.html?highlight=LDAP#ldap-authentication), I'm unsure it is a good idea to connect this kind of tools to your LDAP.
+
+## State of this package
+
+* works fine:
+[x] install/remove/backup/remove/upgrade with x86_64
+
+* to be confirmed:
+[ ] ARM support
+
+* to be added:
+[ ] use jq instead of grep/sed
+[ ] change URL script
+[ ] use debian package for lxml (may unlock ARM support)
+[ ] Add configuration options using the YunoHost interface (https://forum.yunohost.org/t/yunohost-3-1-minor-stable-release-version-stable-mineure/5445)
+[ ] Add fail2ban script
+[ ] Enable CHECK_LIST?
+[ ] Enable AUTOFIX_LIST?
+[ ] Enable Translation Memory?
+
+## Links
+
+ * Report a bug about this package: https://github.com/YunoHost-Apps/weblate_ynh
+ * Report a bug about Weblate itself: https://github.com/WeblateOrg/weblate
+ * Documentation: https://docs.weblate.org/
+ * Weblate website: https://weblate.org/
+ * YunoHost website: https://yunohost.org/

check_process

@@ -19,7 +19,7 @@
 		setup_private=1
 		setup_public=1
 		upgrade=1
-		# upgrade=1		from_commit=f2c1f14df484d727f1918821b6ade3887f77ec40
+		upgrade=1		from_commit=f14080cbe65c8b2a8e0cda1c34affe0123a6540d
 		backup_restore=1
 		multi_instance=1
 		incorrect_path=1
@@ -42,6 +42,6 @@
 Email=jean-baptiste@holcroft.fr
 Notification=all
 ;;; Upgrade options
-	; commit=f2c1f14df484d727f1918821b6ade3887f77ec40
+	; commit=f14080cbe65c8b2a8e0cda1c34affe0123a6540d
-		name=Upgrade from 2.20
+		name=Upgrade from 3.1.1
 manifest_arg=domain=DOMAIN&path=PATH&admin=USER&is_public=1&github_account=fake&github_token=fake

conf/celery-weblate

@@ -0,0 +1,24 @@
+# Name of nodes to start
+# here we have a single node
+CELERYD_NODES="w1"
+# or we could have three nodes:
+#CELERYD_NODES="w1 w2 w3"
+
+# App instance to use
+# comment out this line if you don't use an app
+CELERY_APP="weblate"
+
+# How to call manage.py
+CELERYD_MULTI="multi"
+
+# Extra command-line arguments to the worker
+CELERYD_OPTS="--beat"
+
+# - %n will be replaced with the first part of the nodename.
+# - %I will be replaced with the current child process index
+#   and is important when using the prefork pool to avoid race conditions.
+CELERYD_PID_FILE="/var/run/__APP__-celery/weblate-%n.pid"
+CELERYD_LOG_FILE="/var/log/__APP__-celery/celery-%n%I.log"
+CELERYD_LOG_LEVEL="INFO"
+
+CELERY_WORKER_RUNNING="1"

conf/celery-weblate.service

@@ -0,0 +1,26 @@
+[Unit]
+Description=Celery Service for Weblate (__APP__)
+After=network.target
+
+[Service]
+Type=forking
+User=__APP__
+Group=__APP__
+PermissionsStartOnly=true
+EnvironmentFile=__FINALPATH__/celery-weblate
+WorkingDirectory=__FINALPATH__/
+ExecStartPre=/bin/mkdir -p /var/run/__APP__-celery
+ExecStartPre=/bin/chown -R __APP__ /var/run/__APP__-celery
+ExecStartPre=/bin/mkdir -p /var/log/__APP__-celery
+ExecStartPre=/bin/chown -R __APP__ /var/log/__APP__-celery
+ExecStart=__FINALPATH__/venv/bin/celery multi start ${CELERYD_NODES} \
+  -A ${CELERY_APP} --pidfile=${CELERYD_PID_FILE} \
+  --logfile=${CELERYD_LOG_FILE} --loglevel=${CELERYD_LOG_LEVEL} ${CELERYD_OPTS}
+ExecStop=__FINALPATH__/venv/bin/celery multi stopwait ${CELERYD_NODES} \
+  --pidfile=${CELERYD_PID_FILE}
+ExecReload=__FINALPATH__/venv/bin/celery multi restart ${CELERYD_NODES} \
+  -A ${CELERY_APP} --pidfile=${CELERYD_PID_FILE} \
+  --logfile=${CELERYD_LOG_FILE} --loglevel=${CELERYD_LOG_LEVEL} ${CELERYD_OPTS}
+
+[Install]
+WantedBy=multi-user.target

conf/settings_history/settings.3.2.2.py

@@ -0,0 +1,824 @@
+# -*- coding: utf-8 -*-
+#
+# Copyright © 2012 - 2018 Michal Čihař <michal@cihar.com>
+#
+# This file is part of Weblate <https://weblate.org/>
+#
+# This program 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 <https://www.gnu.org/licenses/>.
+#
+
+from __future__ import unicode_literals
+import platform
+import os
+from logging.handlers import SysLogHandler
+
+#
+# Django settings for Weblate project.
+#
+
+DEBUG = False
+
+ADMINS = (
+    ('__ADMIN__', '__ADMINMAIL__'),
+)
+
+MANAGERS = ADMINS
+
+DATABASES = {
+    'default': {
+        # Database engine
+        'ENGINE': 'django.db.backends.postgresql_psycopg2',
+        # Database name
+        'NAME': '__NAME__',
+        # Database user
+        'USER': '__NAME__',
+        # Database password
+        'PASSWORD': '__DB_PWD__',
+        # Set to empty string for localhost
+        'HOST': 'localhost',
+        # Set to empty string for default
+        'PORT': '5432',
+    }
+}
+
+BASE_DIR = '__FINALPATH__'
+
+# Data directory
+DATA_DIR = os.path.join(BASE_DIR, 'data')
+TTF_PATH = '__FINALPATH__/venv/lib/python3.5/site-packages/weblate/ttf/'
+
+# Local time zone for this installation. Choices can be found here:
+# http://en.wikipedia.org/wiki/List_of_tz_zones_by_name
+# although not all choices may be available on all operating systems.
+# In a Windows environment this must be set to your system time zone.
+TIME_ZONE = 'UTC'
+
+# Language code for this installation. All choices can be found here:
+# http://www.i18nguy.com/unicode/language-identifiers.html
+LANGUAGE_CODE = 'en-us'
+
+LANGUAGES = (
+    ('ar', 'العربية'),
+    ('az', 'Azərbaycan'),
+    ('be', 'Беларуская'),
+    ('be@latin', 'Biełaruskaja'),
+    ('bg', 'Български'),
+    ('br', 'Brezhoneg'),
+    ('ca', 'Català'),
+    ('cs', 'Čeština'),
+    ('da', 'Dansk'),
+    ('de', 'Deutsch'),
+    ('en', 'English'),
+    ('en-gb', 'English (United Kingdom)'),
+    ('el', 'Ελληνικά'),
+    ('es', 'Español'),
+    ('fi', 'Suomi'),
+    ('fr', 'Français'),
+    ('fy', 'Frysk'),
+    ('gl', 'Galego'),
+    ('he', 'עברית'),
+    ('hu', 'Magyar'),
+    ('id', 'Indonesia'),
+    ('it', 'Italiano'),
+    ('ja', '日本語'),
+    ('ko', '한국어'),
+    ('ksh', 'Kölsch'),
+    ('nb', 'Norsk bokmål'),
+    ('nl', 'Nederlands'),
+    ('pl', 'Polski'),
+    ('pt', 'Português'),
+    ('pt-br', 'Português brasileiro'),
+    ('ru', 'Русский'),
+    ('sk', 'Slovenčina'),
+    ('sl', 'Slovenščina'),
+    ('sr', 'Српски'),
+    ('sv', 'Svenska'),
+    ('tr', 'Türkçe'),
+    ('uk', 'Українська'),
+    ('zh-hans', '简体字'),
+    ('zh-hant', '正體字'),
+)
+
+SITE_ID = 1
+
+# If you set this to False, Django will make some optimizations so as not
+# to load the internationalization machinery.
+USE_I18N = True
+
+# If you set this to False, Django will not format dates, numbers and
+# calendars according to the current locale.
+USE_L10N = True
+
+# If you set this to False, Django will not use timezone-aware datetimes.
+USE_TZ = True
+
+# URL prefix to use, please see documentation for more details
+URL_PREFIX = '__PATHURL__'
+
+# Absolute filesystem path to the directory that will hold user-uploaded files.
+# Example: "/home/media/media.lawrence.com/media/"
+MEDIA_ROOT = os.path.join(DATA_DIR, 'media')
+
+# URL that handles the media served from MEDIA_ROOT. Make sure to use a
+# trailing slash.
+# Examples: "http://media.lawrence.com/media/", "http://example.com/media/"
+MEDIA_URL = '{0}/media/'.format(URL_PREFIX)
+
+# Absolute path to the directory static files should be collected to.
+# Don't put anything in this directory yourself; store your static files
+# in apps' "static/" subdirectories and in STATICFILES_DIRS.
+# Example: "/home/media/media.lawrence.com/static/"
+STATIC_ROOT = os.path.join(DATA_DIR, 'static')
+
+# URL prefix for static files.
+# Example: "http://media.lawrence.com/static/"
+STATIC_URL = '{0}/static/'.format(URL_PREFIX)
+
+# Additional locations of static files
+STATICFILES_DIRS = (
+    # Put strings here, like "/home/html/static" or "C:/www/django/static".
+    # Always use forward slashes, even on Windows.
+    # Don't forget to use absolute paths, not relative paths.
+)
+
+# List of finder classes that know how to find static files in
+# various locations.
+STATICFILES_FINDERS = (
+    'django.contrib.staticfiles.finders.FileSystemFinder',
+    'django.contrib.staticfiles.finders.AppDirectoriesFinder',
+    'compressor.finders.CompressorFinder',
+)
+
+# Make this unique, and don't share it with anybody.
+# You can generate it using examples/generate-secret-key
+SECRET_KEY = '__KEY__'  # noqa
+
+TEMPLATES = [
+    {
+        'BACKEND': 'django.template.backends.django.DjangoTemplates',
+        'DIRS': [
+            os.path.join(BASE_DIR, 'weblate', 'templates'),
+        ],
+        'OPTIONS': {
+            'context_processors': [
+                'django.contrib.auth.context_processors.auth',
+                'django.template.context_processors.debug',
+                'django.template.context_processors.i18n',
+                'django.template.context_processors.request',
+                'django.template.context_processors.csrf',
+                'django.contrib.messages.context_processors.messages',
+                'weblate.trans.context_processors.weblate_context',
+            ],
+            'loaders': [
+                ('django.template.loaders.cached.Loader', [
+                    'django.template.loaders.filesystem.Loader',
+                    'django.template.loaders.app_directories.Loader',
+                ]),
+            ],
+        },
+    },
+]
+
+
+# GitHub username for sending pull requests.
+# Please see the documentation for more details.
+GITHUB_USERNAME = "__GITHUBUSER__"
+
+# Authentication configuration
+AUTHENTICATION_BACKENDS = (
+    'social_core.backends.email.EmailAuth',
+    # 'social_core.backends.google.GoogleOAuth2',
+    # 'social_core.backends.github.GithubOAuth2',
+    # 'social_core.backends.bitbucket.BitbucketOAuth',
+    'social_core.backends.suse.OpenSUSEOpenId',
+    'social_core.backends.ubuntu.UbuntuOpenId',
+    'social_core.backends.fedora.FedoraOpenId',
+    # 'social_core.backends.facebook.FacebookOAuth2',
+    'weblate.accounts.auth.WeblateUserBackend',
+)
+
+# Custom user model
+AUTH_USER_MODEL = 'weblate_auth.User'
+
+# Social auth backends setup
+SOCIAL_AUTH_GITHUB_KEY = ''
+SOCIAL_AUTH_GITHUB_SECRET = ''
+SOCIAL_AUTH_GITHUB_SCOPE = ['user:email']
+
+SOCIAL_AUTH_BITBUCKET_KEY = ''
+SOCIAL_AUTH_BITBUCKET_SECRET = ''
+SOCIAL_AUTH_BITBUCKET_VERIFIED_EMAILS_ONLY = True
+
+SOCIAL_AUTH_FACEBOOK_KEY = ''
+SOCIAL_AUTH_FACEBOOK_SECRET = ''
+SOCIAL_AUTH_FACEBOOK_SCOPE = ['email', 'public_profile']
+SOCIAL_AUTH_FACEBOOK_PROFILE_EXTRA_PARAMS = {'fields': 'id,name,email'}
+SOCIAL_AUTH_FACEBOOK_API_VERSION = '3.1'
+
+SOCIAL_AUTH_GOOGLE_OAUTH2_KEY = ''
+SOCIAL_AUTH_GOOGLE_OAUTH2_SECRET = ''
+
+# Social auth settings
+SOCIAL_AUTH_PIPELINE = (
+    'social_core.pipeline.social_auth.social_details',
+    'social_core.pipeline.social_auth.social_uid',
+    'social_core.pipeline.social_auth.auth_allowed',
+    'social_core.pipeline.social_auth.social_user',
+    'weblate.accounts.pipeline.store_params',
+    'weblate.accounts.pipeline.verify_open',
+    'social_core.pipeline.user.get_username',
+    'weblate.accounts.pipeline.require_email',
+    'social_core.pipeline.mail.mail_validation',
+    'weblate.accounts.pipeline.revoke_mail_code',
+    'weblate.accounts.pipeline.ensure_valid',
+    'weblate.accounts.pipeline.remove_account',
+    'social_core.pipeline.social_auth.associate_by_email',
+    'weblate.accounts.pipeline.reauthenticate',
+    'weblate.accounts.pipeline.verify_username',
+    'social_core.pipeline.user.create_user',
+    'social_core.pipeline.social_auth.associate_user',
+    'social_core.pipeline.social_auth.load_extra_data',
+    'weblate.accounts.pipeline.cleanup_next',
+    'weblate.accounts.pipeline.user_full_name',
+    'weblate.accounts.pipeline.store_email',
+    'weblate.accounts.pipeline.notify_connect',
+    'weblate.accounts.pipeline.password_reset',
+)
+SOCIAL_AUTH_DISCONNECT_PIPELINE = (
+    'social_core.pipeline.disconnect.allowed_to_disconnect',
+    'social_core.pipeline.disconnect.get_entries',
+    'social_core.pipeline.disconnect.revoke_tokens',
+    'weblate.accounts.pipeline.cycle_session',
+    'weblate.accounts.pipeline.adjust_primary_mail',
+    'weblate.accounts.pipeline.notify_disconnect',
+    'social_core.pipeline.disconnect.disconnect',
+    'weblate.accounts.pipeline.cleanup_next',
+)
+
+# Custom authentication strategy
+SOCIAL_AUTH_STRATEGY = 'weblate.accounts.strategy.WeblateStrategy'
+
+# Raise exceptions so that we can handle them later
+SOCIAL_AUTH_RAISE_EXCEPTIONS = True
+
+SOCIAL_AUTH_EMAIL_VALIDATION_FUNCTION = \
+    'weblate.accounts.pipeline.send_validation'
+SOCIAL_AUTH_EMAIL_VALIDATION_URL = \
+    '{0}/accounts/email-sent/'.format(URL_PREFIX)
+SOCIAL_AUTH_LOGIN_ERROR_URL = \
+    '{0}/accounts/login/'.format(URL_PREFIX)
+SOCIAL_AUTH_EMAIL_FORM_URL = \
+    '{0}/accounts/email/'.format(URL_PREFIX)
+SOCIAL_AUTH_NEW_ASSOCIATION_REDIRECT_URL = \
+    '{0}/accounts/profile/#auth'.format(URL_PREFIX)
+SOCIAL_AUTH_PROTECTED_USER_FIELDS = ('email',)
+SOCIAL_AUTH_SLUGIFY_USERNAMES = True
+SOCIAL_AUTH_SLUGIFY_FUNCTION = 'weblate.accounts.pipeline.slugify_username'
+
+# Password validation configuration
+AUTH_PASSWORD_VALIDATORS = [
+    {
+        'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator',
+    },
+    {
+        'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator',
+        'OPTIONS': {
+            'min_length': 6,
+        }
+    },
+    {
+        'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator',
+    },
+    {
+        'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator',
+    },
+    {
+        'NAME': 'weblate.accounts.password_validation.CharsPasswordValidator',
+    },
+    {
+        'NAME': 'weblate.accounts.password_validation.PastPasswordsValidator',
+    },
+    # Optional password strength validation by django-zxcvbn-password
+    # {
+    #     'NAME': 'zxcvbn_password.ZXCVBNValidator',
+    #     'OPTIONS': {
+    #         'min_score': 3,
+    #         'user_attributes': ('username', 'email', 'full_name')
+    #     }
+    # },
+]
+
+# Middleware
+MIDDLEWARE = [
+    'django.middleware.security.SecurityMiddleware',
+    'django.contrib.sessions.middleware.SessionMiddleware',
+    'django.middleware.common.CommonMiddleware',
+    'django.middleware.locale.LocaleMiddleware',
+    'django.middleware.csrf.CsrfViewMiddleware',
+    'weblate.accounts.middleware.AuthenticationMiddleware',
+    'django.contrib.messages.middleware.MessageMiddleware',
+    'django.middleware.clickjacking.XFrameOptionsMiddleware',
+    'social_django.middleware.SocialAuthExceptionMiddleware',
+    'weblate.accounts.middleware.RequireLoginMiddleware',
+    'weblate.middleware.SecurityMiddleware',
+]
+
+ROOT_URLCONF = 'weblate.urls'
+
+# Django and Weblate apps
+INSTALLED_APPS = (
+    'django.contrib.auth',
+    'django.contrib.contenttypes',
+    'django.contrib.sessions',
+    'django.contrib.sites',
+    'django.contrib.messages',
+    'django.contrib.staticfiles',
+    'django.contrib.admin.apps.SimpleAdminConfig',
+    'django.contrib.admindocs',
+    'django.contrib.sitemaps',
+    'social_django',
+    'crispy_forms',
+    'compressor',
+    'rest_framework',
+    'rest_framework.authtoken',
+    'weblate.addons',
+    'weblate.auth',
+    'weblate.checks',
+    'weblate.formats',
+    'weblate.machinery',
+    'weblate.trans',
+    'weblate.lang',
+    'weblate.langdata',
+    'weblate.memory',
+    'weblate.screenshots',
+    'weblate.accounts',
+    'weblate.utils',
+    'weblate.vcs',
+    'weblate.wladmin',
+    'weblate',
+
+    # Optional: Git exporter
+    # 'weblate.gitexport',
+)
+
+# Path to locales
+LOCALE_PATHS = (os.path.join(BASE_DIR, 'weblate', 'locale'), )
+
+# Custom exception reporter to include some details
+DEFAULT_EXCEPTION_REPORTER_FILTER = \
+    'weblate.trans.debug.WeblateExceptionReporterFilter'
+
+# Default logging of Weblate messages
+# - to syslog in production (if available)
+# - otherwise to console
+# - you can also choose 'logfile' to log into separate file
+#   after configuring it below
+
+# Detect if we can connect to syslog
+HAVE_SYSLOG = False
+if platform.system() != 'Windows':
+    try:
+        handler = SysLogHandler(
+            address='/dev/log', facility=SysLogHandler.LOG_LOCAL2
+        )
+        handler.close()
+        HAVE_SYSLOG = True
+    except IOError:
+        HAVE_SYSLOG = False
+
+if DEBUG or not HAVE_SYSLOG:
+    DEFAULT_LOG = 'console'
+else:
+    DEFAULT_LOG = 'syslog'
+
+# A sample logging configuration. The only tangible logging
+# performed by this configuration is to send an email to
+# the site admins on every HTTP 500 error when DEBUG=False.
+# See http://docs.djangoproject.com/en/stable/topics/logging for
+# more details on how to customize your logging configuration.
+LOGGING = {
+    'version': 1,
+    'disable_existing_loggers': True,
+    'filters': {
+        'require_debug_false': {
+            '()': 'django.utils.log.RequireDebugFalse'
+        }
+    },
+    'formatters': {
+        'syslog': {
+            'format': 'weblate[%(process)d]: %(levelname)s %(message)s'
+        },
+        'simple': {
+            'format': '%(levelname)s %(message)s'
+        },
+        'logfile': {
+            'format': '%(asctime)s %(levelname)s %(message)s'
+        },
+        'django.server': {
+            '()': 'django.utils.log.ServerFormatter',
+            'format': '[%(server_time)s] %(message)s',
+        }
+    },
+    'handlers': {
+        'mail_admins': {
+            'level': 'ERROR',
+            'filters': ['require_debug_false'],
+            'class': 'django.utils.log.AdminEmailHandler',
+            'include_html': True,
+        },
+        'console': {
+            'level': 'DEBUG',
+            'class': 'logging.StreamHandler',
+            'formatter': 'simple'
+        },
+        'django.server': {
+            'level': 'INFO',
+            'class': 'logging.StreamHandler',
+            'formatter': 'django.server',
+        },
+        'syslog': {
+            'level': 'DEBUG',
+            'class': 'logging.handlers.SysLogHandler',
+            'formatter': 'syslog',
+            'address': '/dev/log',
+            'facility': SysLogHandler.LOG_LOCAL2,
+        },
+        # Logging to a file
+        # 'logfile': {
+        #     'level':'DEBUG',
+        #     'class':'logging.handlers.RotatingFileHandler',
+        #     'filename': "/var/log/weblate/weblate.log",
+        #     'maxBytes': 100000,
+        #     'backupCount': 3,
+        #     'formatter': 'logfile',
+        # },
+    },
+    'loggers': {
+        'django.request': {
+            'handlers': ['mail_admins', DEFAULT_LOG],
+            'level': 'ERROR',
+            'propagate': True,
+        },
+        'django.server': {
+            'handlers': ['django.server'],
+            'level': 'INFO',
+            'propagate': False,
+        },
+        # Logging database queries
+        # 'django.db.backends': {
+        #     'handlers': [DEFAULT_LOG],
+        #     'level': 'DEBUG',
+        # },
+        'weblate': {
+            'handlers': [DEFAULT_LOG],
+            'level': 'DEBUG',
+        },
+        # Logging VCS operations
+        # 'weblate-vcs': {
+        #     'handlers': [DEFAULT_LOG],
+        #     'level': 'DEBUG',
+        # },
+        # Python Social Auth logging
+        # 'social': {
+        #     'handlers': [DEFAULT_LOG],
+        #     'level': 'DEBUG',
+        # },
+    }
+}
+
+# Logging of management commands to console
+if (os.environ.get('DJANGO_IS_MANAGEMENT_COMMAND', False) and
+        'console' not in LOGGING['loggers']['weblate']['handlers']):
+    LOGGING['loggers']['weblate']['handlers'].append('console')
+
+# Remove syslog setup if it's not present
+if not HAVE_SYSLOG:
+    del LOGGING['handlers']['syslog']
+
+# List of machine translations
+# MT_SERVICES = (
+#     'weblate.machinery.apertium.ApertiumAPYTranslation',
+#     'weblate.machinery.baidu.BaiduTranslation',
+#     'weblate.machinery.deepl.DeepLTranslation',
+#     'weblate.machinery.glosbe.GlosbeTranslation',
+#     'weblate.machinery.google.GoogleTranslation',
+#     'weblate.machinery.microsoft.MicrosoftCognitiveTranslation',
+#     'weblate.machinery.microsoftterminology.MicrosoftTerminologyService',
+#     'weblate.machinery.mymemory.MyMemoryTranslation',
+#     'weblate.machinery.tmserver.AmagamaTranslation',
+#     'weblate.machinery.tmserver.TMServerTranslation',
+#     'weblate.machinery.yandex.YandexTranslation',
+#     'weblate.machinery.weblatetm.WeblateTranslation',
+#     'weblate.machinery.saptranslationhub.SAPTranslationHub',
+#     'weblate.machinery.youdao.YoudaoTranslation',
+#     'weblate.memory.machine.WeblateMemory',
+# )
+
+# Machine translation API keys
+
+# URL of the Apertium APy server
+MT_APERTIUM_APY = None
+
+# DeepL API key
+MT_DEEPL_KEY = None
+
+# Microsoft Cognitive Services Translator API, register at
+# https://portal.azure.com/
+MT_MICROSOFT_COGNITIVE_KEY = None
+
+# MyMemory identification email, see
+# https://mymemory.translated.net/doc/spec.php
+MT_MYMEMORY_EMAIL = None
+
+# Optional MyMemory credentials to access private translation memory
+MT_MYMEMORY_USER = None
+MT_MYMEMORY_KEY = None
+
+# Google API key for Google Translate API
+MT_GOOGLE_KEY = None
+
+# Baidu app key and secret
+MT_BAIDU_ID = None
+MT_BAIDU_SECRET = None
+
+# Youdao Zhiyun app key and secret
+MT_YOUDAO_ID = None
+MT_YOUDAO_SECRET = None
+
+# API key for Yandex Translate API
+MT_YANDEX_KEY = None
+
+# tmserver URL
+MT_TMSERVER = None
+
+# SAP Translation Hub
+MT_SAP_BASE_URL = None
+MT_SAP_SANDBOX_APIKEY = None
+MT_SAP_USERNAME = None
+MT_SAP_PASSWORD = None
+MT_SAP_USE_MT = True
+
+# Title of site to use
+SITE_TITLE = 'Weblate'
+
+# Whether site uses https
+ENABLE_HTTPS = True
+
+# Use HTTPS when creating redirect URLs for social authentication, see
+# documentation for more details:
+# http://python-social-auth-docs.readthedocs.io/en/latest/configuration/settings.html#processing-redirects-and-urlopen
+SOCIAL_AUTH_REDIRECT_IS_HTTPS = ENABLE_HTTPS
+
+# Make CSRF cookie HttpOnly, see documentation for more details:
+# https://docs.djangoproject.com/en/1.11/ref/settings/#csrf-cookie-httponly
+CSRF_COOKIE_HTTPONLY = True
+CSRF_COOKIE_SECURE = ENABLE_HTTPS
+# Store CSRF token in session (since Django 1.11)
+CSRF_USE_SESSIONS = True
+SESSION_COOKIE_SECURE = ENABLE_HTTPS
+# SSL redirect
+SECURE_SSL_REDIRECT = ENABLE_HTTPS
+# Session cookie age (in seconds)
+SESSION_COOKIE_AGE = 1209600
+
+# Some security headers
+SECURE_BROWSER_XSS_FILTER = True
+X_FRAME_OPTIONS = 'DENY'
+SECURE_CONTENT_TYPE_NOSNIFF = True
+
+# Optionally enable HSTS
+SECURE_HSTS_SECONDS = 0
+SECURE_HSTS_PRELOAD = False
+SECURE_HSTS_INCLUDE_SUBDOMAINS = False
+
+# URL of login
+LOGIN_URL = '{0}/accounts/login/'.format(URL_PREFIX)
+
+# URL of logout
+LOGOUT_URL = '{0}/accounts/logout/'.format(URL_PREFIX)
+
+# Default location for login
+LOGIN_REDIRECT_URL = '{0}/'.format(URL_PREFIX)
+
+# Anonymous user name
+ANONYMOUS_USER_NAME = 'anonymous'
+
+# Reverse proxy settings
+IP_BEHIND_REVERSE_PROXY = False
+IP_PROXY_HEADER = 'HTTP_X_FORWARDED_FOR'
+IP_PROXY_OFFSET = 0
+
+# Sending HTML in mails
+EMAIL_SEND_HTML = True
+
+# Subject of emails includes site title
+EMAIL_SUBJECT_PREFIX = '[{0}] '.format(SITE_TITLE)
+
+EMAIL_BACKEND = 'django_sendmail_backend.backends.EmailBackend'
+
+# Enable remote hooks
+ENABLE_HOOKS = True
+
+# Number of nearby messages to show in each direction
+NEARBY_MESSAGES = 5
+
+# Use simple language codes for default language/country combinations
+SIMPLIFY_LANGUAGES = True
+
+# Render forms using bootstrap
+CRISPY_TEMPLATE_PACK = 'bootstrap3'
+
+# List of quality checks
+# CHECK_LIST = (
+#     'weblate.checks.same.SameCheck',
+#     'weblate.checks.chars.BeginNewlineCheck',
+#     'weblate.checks.chars.EndNewlineCheck',
+#     'weblate.checks.chars.BeginSpaceCheck',
+#     'weblate.checks.chars.EndSpaceCheck',
+#     'weblate.checks.chars.EndStopCheck',
+#     'weblate.checks.chars.EndColonCheck',
+#     'weblate.checks.chars.EndQuestionCheck',
+#     'weblate.checks.chars.EndExclamationCheck',
+#     'weblate.checks.chars.EndEllipsisCheck',
+#     'weblate.checks.chars.EndSemicolonCheck',
+#     'weblate.checks.chars.MaxLengthCheck',
+#     'weblate.checks.format.PythonFormatCheck',
+#     'weblate.checks.format.PythonBraceFormatCheck',
+#     'weblate.checks.format.PHPFormatCheck',
+#     'weblate.checks.format.CFormatCheck',
+#     'weblate.checks.format.PerlFormatCheck',
+#     'weblate.checks.format.JavascriptFormatCheck',
+#     'weblate.checks.format.CSharpFormatCheck',
+#     'weblate.checks.format.JavaFormatCheck',
+#     'weblate.checks.format.JavaMessageFormatCheck',
+#     'weblate.checks.angularjs.AngularJSInterpolationCheck',
+#     'weblate.checks.consistency.PluralsCheck',
+#     'weblate.checks.consistency.SamePluralsCheck',
+#     'weblate.checks.consistency.ConsistencyCheck',
+#     'weblate.checks.consistency.TranslatedCheck',
+#     'weblate.checks.chars.NewlineCountingCheck',
+#     'weblate.checks.markup.BBCodeCheck',
+#     'weblate.checks.chars.ZeroWidthSpaceCheck',
+#     'weblate.checks.markup.XMLValidityCheck',
+#     'weblate.checks.markup.XMLTagsCheck',
+#     'weblate.checks.source.OptionalPluralCheck',
+#     'weblate.checks.source.EllipsisCheck',
+#     'weblate.checks.source.MultipleFailingCheck',
+# )
+
+# List of automatic fixups
+# AUTOFIX_LIST = (
+#     'weblate.trans.autofixes.whitespace.SameBookendingWhitespace',
+#     'weblate.trans.autofixes.chars.ReplaceTrailingDotsWithEllipsis',
+#     'weblate.trans.autofixes.chars.RemoveZeroSpace',
+#     'weblate.trans.autofixes.chars.RemoveControlChars',
+# )
+
+# List of enabled addons
+# WEBLATE_ADDONS = (
+#     'weblate.addons.gettext.GenerateMoAddon',
+#     'weblate.addons.gettext.UpdateLinguasAddon',
+#     'weblate.addons.gettext.UpdateConfigureAddon',
+#     'weblate.addons.gettext.MsgmergeAddon',
+#     'weblate.addons.gettext.GettextCustomizeAddon',
+#     'weblate.addons.gettext.GettextAuthorComments',
+#     'weblate.addons.cleanup.CleanupAddon',
+#     'weblate.addons.consistency.LangaugeConsistencyAddon',
+#     'weblate.addons.discovery.DiscoveryAddon',
+#     'weblate.addons.flags.SourceEditAddon',
+#     'weblate.addons.flags.TargetEditAddon',
+#     'weblate.addons.generate.GenerateFileAddon',
+#     'weblate.addons.json.JSONCustomizeAddon',
+#     'weblate.addons.properties.PropertiesSortAddon',
+# )
+
+# E-mail address that error messages come from.
+SERVER_EMAIL = 'noreply@__DOMAIN__'
+
+# Default email address to use for various automated correspondence from
+# the site managers. Used for registration emails.
+DEFAULT_FROM_EMAIL = '__ADMINMAIL__'
+
+# List of URLs your site is supposed to serve
+ALLOWED_HOSTS = ['__DOMAIN__']
+
+CACHES = {
+    'default': {
+        'BACKEND': 'django_redis.cache.RedisCache',
+        'LOCATION': 'redis://127.0.0.1:6379/__REDIS_DB__',
+        'OPTIONS': {
+            'CLIENT_CLASS': 'django_redis.client.DefaultClient',
+            'PARSER_CLASS': 'redis.connection.HiredisParser',
+        }
+    },
+    'avatar': {
+        'BACKEND': 'django.core.cache.backends.filebased.FileBasedCache',
+        'LOCATION': os.path.join(BASE_DIR, 'avatar-cache'),
+        'TIMEOUT': 3600,
+        'OPTIONS': {
+            'MAX_ENTRIES': 1000,
+        },
+    }
+}
+
+# Example configuration for caching
+# CACHES = {
+# Recommended redis + hiredis:
+#     'default': {
+#         'BACKEND': 'django_redis.cache.RedisCache',
+#         'LOCATION': 'redis://127.0.0.1:6379/0',
+#         # If redis is running on same host as Weblate, you might
+#         # want to use unix sockets instead:
+#         # 'LOCATION': 'unix:///var/run/redis/redis.sock?db=0',
+#         'OPTIONS': {
+#             'CLIENT_CLASS': 'django_redis.client.DefaultClient',
+#             'PARSER_CLASS': 'redis.connection.HiredisParser',
+#         }
+#     },
+# Memcached alternative:
+#     'default': {
+#         'BACKEND': 'django.core.cache.backends.memcached.MemcachedCache',
+#         'LOCATION': '127.0.0.1:11211',
+#     },
+#     'avatar': {
+#         'BACKEND': 'django.core.cache.backends.filebased.FileBasedCache',
+#         'LOCATION': os.path.join(DATA_DIR, 'avatar-cache'),
+#         'TIMEOUT': 3600,
+#         'OPTIONS': {
+#             'MAX_ENTRIES': 1000,
+#         },
+#     }
+# }
+
+# REST framework settings for API
+REST_FRAMEWORK = {
+    # Use Django's standard `django.contrib.auth` permissions,
+    # or allow read-only access for unauthenticated users.
+    'DEFAULT_PERMISSION_CLASSES': [
+        'rest_framework.permissions.IsAuthenticatedOrReadOnly'
+    ],
+    'DEFAULT_AUTHENTICATION_CLASSES': (
+        'rest_framework.authentication.TokenAuthentication',
+        'weblate.api.authentication.BearerAuthentication',
+        'rest_framework.authentication.SessionAuthentication',
+    ),
+    'DEFAULT_THROTTLE_CLASSES': (
+        'rest_framework.throttling.AnonRateThrottle',
+        'rest_framework.throttling.UserRateThrottle'
+    ),
+    'DEFAULT_THROTTLE_RATES': {
+        'anon': '100/day',
+        'user': '1000/day'
+    },
+    'DEFAULT_PAGINATION_CLASS': (
+        'rest_framework.pagination.PageNumberPagination'
+    ),
+    'PAGE_SIZE': 20,
+    'VIEW_DESCRIPTION_FUNCTION': 'weblate.api.views.get_view_description',
+    'UNAUTHENTICATED_USER': 'weblate.auth.models.get_anonymous',
+}
+
+# Example for restricting access to logged in users
+# LOGIN_REQUIRED_URLS = (
+#     r'/(.*)$',
+# )
+
+# In such case you will want to include some of the exceptions
+# LOGIN_REQUIRED_URLS_EXCEPTIONS = (
+#    r'/accounts/(.*)$',        # Required for login
+#    r'/admin/login/(.*)$',     # Required for admin login
+#    r'/static/(.*)$',          # Required for development mode
+#    r'/widgets/(.*)$',         # Allowing public access to widgets
+#    r'/data/(.*)$',            # Allowing public access to data exports
+#    r'/hooks/(.*)$',           # Allowing public access to notification hooks
+#    r'/healthz/$',             # Allowing public access to health check
+#    r'/api/(.*)$',             # Allowing access to API
+#    r'/js/i18n/$',             # Javascript localization
+#    r'/contact/$',             # Optional for contact form
+#    r'/legal/(.*)$',           # Optional for legal app
+# )
+
+# Celery worker configuration for testing
+# CELERY_TASK_ALWAYS_EAGER = True
+# CELERY_BROKER_URL = 'memory://'
+# Celery worker configuration for production
+CELERY_TASK_ALWAYS_EAGER = False
+CELERY_BROKER_URL = 'redis://127.0.0.1:6379/__REDIS_DB__'
+
+# Celery settings, it is not recommended to change these
+CELERY_WORKER_PREFETCH_MULTIPLIER = 0
+CELERY_BEAT_SCHEDULE_FILENAME = os.path.join(
+    DATA_DIR, 'celery', 'beat-schedule'
+)
+

conf/uwsgi-app@.service

@@ -7,7 +7,8 @@ ExecStart=/usr/bin/uwsgi \
         --ini /etc/uwsgi/apps-available/%i.ini \
         --socket /var/run/uwsgi/%i.socket \
         --chmod-socket=775 \
-        --logto /var/log/uwsgi/app/%i
+        --logto /var/log/uwsgi/app/%i \
+        --processes 4
 User=%i
 Group=www-data
 Restart=on-failure

conf/uwsgi.ini

@@ -1,12 +1,12 @@
 [uwsgi]
-plugins       = python
+plugins       = python3
 master        = true
 protocol      = uwsgi
 socket        = /var/run/uwsgi/__APP__.socket
 virtualenv    = __FINALPATH__/venv
 
 # http://uwsgi-docs.readthedocs.io/en/latest/Nginx.html#hosting-multiple-apps-in-the-same-process-aka-managing-script-name-and-path-info
-mount = __PATH__=__FINALPATH__/venv/lib/python2.7/site-packages/weblate/wsgi.py
+mount = __PATH__=__FINALPATH__/venv/lib/python3.5/site-packages/weblate/wsgi.py
 manage-script-name = true
 
 # Needed for OAuth/OpenID

manifest.json

@@ -3,12 +3,12 @@
 	"id": "weblate",
 	"packaging_format": 1,
 	"requirements": {
-		"yunohost": ">= 3.1.0"
+		"yunohost": ">= 3.2.0"
 	},
 	"description": {
 		"en": "A translation platform using Git and Python"
 	},
-	"version": "3.1.1~ynh3",
+	"version": "3.2.2~ynh1",
 	"url": "https://weblate.org",
 	"license": "AGPL-3.0",
 	"maintainer": {

scripts/_common.sh

@@ -1,6 +1,6 @@
 #!/bin/bash
 
-current_version="3.1.1"
+current_version="3.2.2"
 
 ynh_check_global_uwsgi_config () {
 	uwsgi --version || ynh_die "You need to add uwsgi (and appropriate plugin) as a dependency"
@@ -91,8 +91,8 @@ weblate_fill_settings() {
 	ynh_replace_string "__DOMAIN__"     "$domain"         "$settings"
 	ynh_replace_string "__KEY__"        "$key"            "$settings"
 	ynh_replace_string "__FINALPATH__"  "$final_path"     "$settings"
-	ynh_replace_string "__MEMCPORT__"   "$memc_port"      "$settings"
 	ynh_replace_string "__GITHUBUSER__" "$github_account" "$settings"
+	ynh_replace_string "__REDIS_DB__"   "$redis_db"       "$settings"
 
 	# root install as an empty PATHURL to prevent '//static'
 	if [ "$path_url" == "/" ]
@@ -177,3 +177,48 @@ $(yunohost tools diagnosis | grep -B 100 "services:" | sed '/services:/d')"
 	# Send the email to the recipients
 	echo "$mail_message" | $mail_bin -a "Content-Type: text/plain; charset=UTF-8" -s "$mail_subject" "$recipients"
 }
+
+#=================================================
+#
+# Redis HELPERS
+#
+# Point of contact : Jean-Baptiste Holcroft <jean-baptiste@holcroft.fr>
+#=================================================
+
+# get the first available redis database
+#
+# usage: ynh_redis_get_free_db
+# | returns: the database number to use
+ynh_redis_get_free_db() {
+	local result max db
+	result=$(redis-cli INFO keyspace)
+
+	# get the num
+	max=$(cat /etc/redis/redis.conf | grep ^databases | grep -Eow "[0-9]+")
+
+	db=0
+	# default Debian setting is 15 databases
+	for i in $(seq 0 "$max")
+	do
+	 	if ! echo "$result" | grep -q "db$i"
+	 	then
+			db=$i
+	 		break 1
+ 		fi
+ 		db=-1
+	done
+
+	test "$db" -eq -1 && ynh_die "No available Redis databases..."
+
+	echo "$db"
+}
+
+# Create a master password and set up global settings
+# Please always call this script in install and restore scripts
+#
+# usage: ynh_redis_remove_db database
+# | arg: database - the database to erase
+ynh_redis_remove_db() {
+	local db=$1
+	redis-cli -n "$db" flushall
+}

scripts/backup

@@ -62,6 +62,7 @@ ynh_backup "/etc/cron.d/$app"
 
 ynh_backup "/etc/uwsgi/apps-available/$app.ini"
 ynh_backup "/etc/systemd/system/uwsgi-app@.service"
+ynh_backup "/etc/systemd/system/$app-celery.service"
 
 #=================================================
 # BACKUP THE hub binary file

scripts/install

@@ -77,9 +77,9 @@ ynh_app_setting_set "$app" github_token "$github_token"
 #=================================================
 
 ynh_install_app_dependencies libxml2-dev libxslt-dev libfreetype6-dev \
-	libjpeg-dev libz-dev libyaml-dev python-dev python-pip python-virtualenv \
+	libjpeg-dev libz-dev libyaml-dev python3-dev python3-pip python3-virtualenv \
-	postgresql libpq-dev uwsgi uwsgi-plugin-python memcached \
+	postgresql libpq-dev uwsgi uwsgi-plugin-python3 \
-	mailutils
+	mailutils python-celery-common virtualenv redis-server
 
 #=================================================
 # CREATE A PostgreSQL DATABASE
@@ -185,7 +185,7 @@ fi
 #=================================================
 # PIP INSTALLATION
 #=================================================
-virtualenv "${final_path}/venv"
+virtualenv --python=python3 "${final_path}/venv"
 #run source in a 'sub shell'
 (
 	set +o nounset
@@ -195,11 +195,9 @@ virtualenv "${final_path}/venv"
 	# prevent error: "command: 'install_requires' must be a string or list of strings containing valid project/version requirement specifiers"
 	pip install --upgrade setuptools
 	pip install Weblate=="$current_version"
-	pip install pytz python-bidi PyYaML Babel pyuca pylibravatar pydns psycopg2-binary python-memcached phply
+	pip install pytz python-bidi PyYaML Babel pyuca pylibravatar py3dns psycopg2-binary phply django-redis hiredis
 	# specific to YunoHost package:
 	pip install django_sendmail_backend
-	# Fix ImportError: No module named backports
-	pip install backports.csv
 )
 
 #=================================================
@@ -210,12 +208,13 @@ virtualenv "${final_path}/venv"
 db_pwd=$(ynh_app_setting_get "$app" psqlpwd)
 admin_mail=$(ynh_user_get_info "$admin" mail)
 key=$(ynh_string_random 24)$(ynh_string_random 24)$(ynh_string_random 2)
-memc_port=$(ynh_find_port 8080)
+redis_db=$(ynh_redis_get_free_db)
-settings="$final_path/venv/lib/python2.7/site-packages/weblate/settings.py"
+
+settings="$final_path/venv/lib/python3.5/site-packages/weblate/settings.py"
 cp "../conf/settings_history/settings.$current_version.py" "$settings"
 
 weblate_fill_settings "$settings"
-ynh_app_setting_set "$app" memc_port "$memc_port"
+ynh_app_setting_set "$app" redis_db "$redis_db"
 
 #=================================================
 # SPECIFIC SETUP Filling up the database
@@ -249,7 +248,19 @@ ynh_replace_string "__FINALPATH__" "$final_path/" "/etc/cron.d/$app"
 #=================================================
 
 # Calculate and store the config file checksum into the app settings
-ynh_store_file_checksum "$final_path/venv/lib/python2.7/site-packages/weblate/settings.py"
+ynh_store_file_checksum "$final_path/venv/lib/python3.5/site-packages/weblate/settings.py"
+
+#=================================================
+# ACTIVATE CELERY
+#=================================================
+
+celeryconf="$final_path/celery-weblate"
+cp ../conf/celery-weblate "$celeryconf"
+
+ynh_replace_string "__APP__"        "$app"         "$celeryconf"
+ynh_replace_string "__FINALPATH__"  "$final_path"  "$celeryconf"
+
+ynh_add_systemd_config "$app-celery" "celery-weblate.service"
 
 #=================================================
 # GENERIC FINALIZATION
@@ -287,6 +298,7 @@ fi
 # Start weblate
 #=================================================
 
+systemctl start "$app-celery"
 systemctl start "uwsgi-app@$app.service"
 
 #=================================================

scripts/remove

@@ -18,10 +18,11 @@ domain=$(ynh_app_setting_get "$app" domain)
 db_name=$(ynh_app_setting_get "$app" db_name)
 
 #=================================================
-# STOP WEBLATE'S SERVICE
+# STOP WEBLATE'S SERVICES
 #=================================================
 
 systemctl stop "uwsgi-app@$app.service"
+systemctl stop "$app-celery.service"
 
 #=================================================
 # REMOVE THE PostgreSQL DATABASE
@@ -60,11 +61,18 @@ ynh_remove_nginx_config
 # Remove a cron file
 ynh_secure_remove "/etc/cron.d/$app"
 
+#=================================================
+# REMOVE CELERY FILES
+#=================================================
+
+ynh_secure_remove "/var/run/$app-celery"
+
 #=================================================
 # REMOVE uwsgi and systemd files
 #=================================================
 
 ynh_remove_uwsgi_service
+ynh_remove_systemd_config "$app-celery"
 
 #=================================================
 # GENERIC FINALIZATION

scripts/restore

@@ -75,9 +75,9 @@ chown -R "$app": "$final_path"
 #=================================================
 
 ynh_install_app_dependencies libxml2-dev libxslt-dev libfreetype6-dev \
-	libjpeg-dev libz-dev libyaml-dev python-dev python-pip python-virtualenv \
+	libjpeg-dev libz-dev libyaml-dev python3-dev python3-pip python3-virtualenv \
-	postgresql libpq-dev uwsgi uwsgi-plugin-python memcached \
+	postgresql libpq-dev uwsgi uwsgi-plugin-python3 memcached \
-	mailutils
+	mailutils python-celery-common virtualenv redis-server
 
 #=================================================
 # RESTORE THE PostgreSQL DATABASE
@@ -117,6 +117,8 @@ systemctl enable "uwsgi-app@$app.service"
 # Add as a service
 yunohost service add "uwsgi-app@$app.service" --log "/var/log/uwsgi/app/$app"
 
+ynh_restore_file "/etc/systemd/system/$app-celery.service"
+
 #=================================================
 # RESTORE THE CRON FILE
 #=================================================
@@ -135,6 +137,7 @@ ynh_restore_file "/usr/bin/hub"
 # Start weblate
 #=================================================
 
+systemctl start "$app-celery.service"
 systemctl start "uwsgi-app@$app.service"
 
 #=================================================

scripts/upgrade

@@ -26,6 +26,7 @@ memc_port=$(ynh_app_setting_get "$app" memc_port)
 github_account=$(ynh_app_setting_get "$app" github_account)
 migration311=$(ynh_app_setting_get "$app" migration311)
 key=$(ynh_string_random 24)$(ynh_string_random 24)$(ynh_string_random 2)
+redis_db=$(ynh_app_setting_get "$app" redis_db)
 
 #=================================================
 # Get previous version number
@@ -63,7 +64,15 @@ if [ -z "$db_name" ]; then	# If db_name doesn't exist, create it
 	ynh_app_setting_set "$app" db_name "$db_name"
 fi
 
-settings="$final_path/venv/lib/python2.7/site-packages/weblate/settings.py"
+# (<3.2)
+migrate_to_python3=0
+if [ -e "$final_path/venv/lib/python2.7/site-packages/weblate/settings.py" ]; then
+	settings="$final_path/venv/lib/python2.7/site-packages/weblate/settings.py"
+	migrate_to_python3=1
+	cp "$settings" "$final_path/settings.py"
+else
+	settings="$final_path/venv/lib/python3.5/site-packages/weblate/settings.py"
+fi
 
 # (<2.17) save memc_port if it doesn't exist
 if [[ -z "$memc_port" ]]
@@ -107,7 +116,7 @@ fi
 
 # Weblate requires an update to 3.0 before 3.1
 # the upgrade hook will launch this script again to make sure it works
-if [[ -z "$migration311" ]]
+if [[ -z "$migration311" && $previous_version = "2.20" ]]
 then
 	# $migration311 is not set, version is <3.0
 	migration311="two_steps_upgrade_3.0to3.1-needed"
@@ -133,6 +142,17 @@ then
 	systemctl stop "uwsgi-app@$app.service"
 fi
 
+if [[ -e "/var/run/$app-celery/$app-w1.pid" ]]
+then
+	systemctl stop "$app-celery.service"
+fi
+
+# (<3.2)
+if [ -z "$redis_db" ]; then
+	redis_db=$(ynh_redis_get_free_db)
+	ynh_app_setting_set "$app" redis_db "$redis_db"
+fi
+
 #=================================================
 # BACKUP BEFORE UPGRADE THEN ACTIVE TRAP
 #=================================================
@@ -186,9 +206,9 @@ chsh --shell /bin/bash "$app"
 #=================================================
 
 ynh_install_app_dependencies libxml2-dev libxslt-dev libfreetype6-dev \
-	libjpeg-dev libz-dev libyaml-dev python-dev python-pip python-virtualenv \
+	libjpeg-dev libz-dev libyaml-dev python3-dev python3-pip python3-virtualenv \
-	postgresql libpq-dev uwsgi uwsgi-plugin-python memcached \
+	postgresql libpq-dev uwsgi uwsgi-plugin-python3 memcached \
-	mailutils
+	mailutils python-celery-common virtualenv redis-server
 
 #=================================================
 # SPECIFIC SETUP uwsgi
@@ -207,6 +227,12 @@ fi
 # PIP INSTALLATION
 #=================================================
 
+if [ "$migrate_to_python3" -eq 1 ]
+then
+	ynh_secure_remove "${final_path}/venv"
+	virtualenv --python=python3 "${final_path}/venv"
+fi
+
 (
 	set +o nounset
 	source "${final_path}/venv/bin/activate"
@@ -215,13 +241,17 @@ fi
 	# prevent error: "command: 'install_requires' must be a string or list of strings containing valid project/version requirement specifiers"
 	pip install --upgrade setuptools
 	pip install Weblate=="$current_version"
-	pip install pytz python-bidi PyYaML Babel pyuca pylibravatar pydns psycopg2-binary python-memcached phply
+	pip install pytz python-bidi PyYaML Babel pyuca pylibravatar py3dns psycopg2-binary phply django-redis hiredis
 	# specific to YunoHost package:
 	pip install django_sendmail_backend
-	# Fix ImportError: No module named backports
-	pip install backports.csv
 )
 
+if [ "$migrate_to_python3" -eq 1 ]
+then
+	mv "$final_path/settings.py" "$final_path/venv/lib/python3.5/site-packages/weblate/settings.py"
+	settings="$final_path/venv/lib/python3.5/site-packages/weblate/settings.py"
+fi
+
 #=================================================
 # CONFIG FILE UPGRADE
 #=================================================
@@ -277,6 +307,18 @@ weblate_fill_settings "$settings"
 
 ynh_secure_remove "$old_settings"
 
+#=================================================
+# ACTIVATE CELERY
+#=================================================
+
+celeryconf="$final_path/celery-weblate"
+cp ../conf/celery-weblate "$celeryconf"
+
+ynh_replace_string "__APP__"        "$app"         "$celeryconf"
+ynh_replace_string "__FINALPATH__"  "$final_path"  "$celeryconf"
+
+ynh_add_systemd_config "$app-celery" "celery-weblate.service"
+
 #=================================================
 # Run migration scripts
 #=================================================
@@ -322,7 +364,7 @@ ynh_secure_remove "$old_settings"
 )
 
 # Recalculate and store the config file checksum into the app settings
-ynh_store_file_checksum "$final_path/venv/lib/python2.7/site-packages/weblate/settings.py"
+ynh_store_file_checksum "$final_path/venv/lib/python3.5/site-packages/weblate/settings.py"
 
 #=================================================
 # SETUP CRON
@@ -369,6 +411,7 @@ fi
 #=================================================
 
 systemctl start "uwsgi-app@$app.service"
+systemctl start "$app-celery.service"
 
 #=================================================
 # RELOAD NGINX