# -*- tab-width: 4; indent-tabs-mode: nil; py-indent-offset: 4 -*- # # This file is part of the LibreOffice project. # # This Source Code Form is subject to the terms of the Mozilla Public # License, v. 2.0. If a copy of the MPL was not distributed with this # file, You can obtain one at http://mozilla.org/MPL/2.0/. # # This file incorporates work covered by the following license notice: # # Licensed to the Apache Software Foundation (ASF) under one or more # contributor license agreements. See the NOTICE file distributed # with this work for additional information regarding copyright # ownership. The ASF licenses this file to you under the Apache # License, Version 2.0 (the "License"); you may not use this file # except in compliance with the License. You may obtain a copy of # the License at http://www.apache.org/licenses/LICENSE-2.0 . # """ Bootstrap PyUNO Runtime.
The soffice process is started opening a named pipe of random name, then
the local context is used to access the pipe. This function directly
returns the remote component context, from whereon you can get the
ServiceManager by calling getServiceManager() on the returned object.
This module supports the following environments:
- Windows
- GNU/Linux derivatives
- Mac OS X
A configurable time-out allows to wait for LibO process to be completed.
Multiple attempts can be set in order to connect to LibO as a service.
Specific versions of the office suite can be started.
Instructions: 1. Include one of the below examples in your Python macro 2. Run your LibreOffice script from your preferred IDE
Imports:
os, random, subprocess, sys - `bootstrap`
itertools, time - `retry` decorator
Exceptions:
OSError - in `bootstrap`
BootstrapException - in `bootstrap`
NoConnectException - in `bootstrap`
Functions:
`bootstrap`
`retry` decorator
Acknowledgments:
- Kim Kulak for original officehelper.py Python translation from bootstrap.java
- ActiveState, for `retry` python decorator
warning:: Tested platforms are Linux, Mac OS X & Windows
AppImage, Flatpak, Snap and the like have not been validated
:References:
.. _ActiveState retry Python decorator: http://code.activestate.com/recipes/580745-retry-decorator-in-python/ """ # in bootstrap() import os import random import signal import subprocess from sys import platform # in retry() decorator import itertools import time
import uno from com.sun.star.connection import NoConnectException from com.sun.star.uno import Exception as UnoException
def bootstrap(soffice=None, delays=(1, 3, 5, 7), report=lambda *args: None): # 4 connection attempts; sleeping 1, 3, 5 and 7 seconds # no report to console
r"""Bootstrap PyUNO Runtime.
The soffice process is started opening a named pipe of random name,
then the local context is used to access the pipe. This function
directly returns the remote component context, from whereon you can
get the ServiceManager by calling getServiceManager() on the
returned object.
Examples:
i. Start LO as a service, get its remote component context
import officehelper
ctx = officehelper.bootstrap() # your code goes here
ii. Wait longer for LO to start, request context multiples times
+ Report processing in console
import officehelper as oh
ctx = oh.bootstrap(delays=(5,10,15,20),report=print) # wait 5, 10, 15 and 20 sec. # your code goes here
iii. Use a specific LibreOffice copy
from officehelper import bootstrap
ctx = bootstrap(soffice=r"USB:\PortableApps\libO-7.6\App\libreoffice\program\soffice.exe") # your code goes here """ try:
process = None# used in except clause if soffice: # soffice fully qualified path as parm
sOffice = soffice else: # soffice script used on *ix, Mac; soffice.exe used on Win if"UNO_PATH"in os.environ:
sOffice = os.environ["UNO_PATH"] else:
sOffice = ""# let's hope for the best
sOffice = os.path.join(sOffice, "soffice") if platform.startswith("win"):
sOffice += ".exe"
sOffice = '"' + sOffice + '"'# accommodate ' ' spaces in filename elif platform == "darwin": # any other un-hardcoded suggestion?
sOffice = "/Applications/LibreOffice.App/Contents/MacOS/soffice" # Generate a random pipe name.
random.seed()
sPipeName = "uno" + str(random.random())[2:] # Start the office process
connect_string = ''.join(['pipe,name=', sPipeName, ';urp;'])
command = ' '.join([sOffice, '--nologo', '--nodefault', '--accept="' + connect_string + '"']) if platform.startswith("win") or platform == "darwin":
process = subprocess.Popen(command, shell=True) elif platform == "linux": # Use a process group to enable proper termination
process = subprocess.Popen(command, shell=True, preexec_fn=os.setsid) else: raise OSError # Connect to a started office instance
xLocalContext = uno.getComponentContext()
resolver = xLocalContext.ServiceManager.createInstanceWithContext( "com.sun.star.bridge.UnoUrlResolver", xLocalContext)
sConnect = "".join(['uno:', connect_string, 'StarOffice.ComponentContext'])
@retry(delays=delays,
exception=NoConnectException,
report=report) def resolve(): return resolver.resolve(sConnect) # may raise NoConnectException
ctx = resolve() return ctx
except Exception:
time.sleep(10) if process: # clean memory from soffice running process if platform.startswith("win") or platform == "darwin":
process.terminate() # Send termination signal elif platform == "linux":
os.killpg(os.getpgid(process.pid), signal.SIGTERM) # Send termination signal to process group raise BootstrapException
# vim: set shiftwidth=4 softtabstop=4 expandtab
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