/************************************************************** * * 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 * * Unless required by applicable law or agreed to in writing, * software distributed under the License is distributed on an * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * KIND, either express or implied. See the License for the * specific language governing permissions and limitations * under the License. * *************************************************************/ There are three extensions in various versions: 1 version_XXX/plain.oxt has no dependencies and no license. 2a version_XXX/dependency.oxt has an unsatisfied dependency and no license. 2b version_nodependencies_XXX/dependency.oxt is identical to 2a but without the dependency. 3 version_XXX/license.oxt has no dependencies and a license. The different versions are: A version_none contains no version element (treated as version "0"). B version_badelement contains a bad (not allowed by the specification, but treated by the current implementation as version "0"). C version_badvalue contains a bad (not allowed by the specification, but treated by the current implementation as version "1"). D version_0.0 contains (same as version "0"). E version_1.2.3 contains . F version_1.2.4.7 contains . G version_1.02.4.7.0 contains (same as version "1.2.4.7"). H version_1.2.15.3 contains . The total order among the various versions is thus A = B = D < C < E < F = G < H. Things to watch for: - If version y of extension e is to be installed and version x < y of extension e is already installed, then unopkg add e will replace x with y. - If version y of extension e is to be installed and version x >= y of extension e is already installed, then unopkg add e will fail with an error message. - If version y of extension e is to be installed and any version x of extension e is already installed, then unopkg add -f e will replace x with y. - If version y of extension e is to be installed and any version x of extension e is already installed, then unopkg gui "Add..." and soffice "Tools - Package Manager... - Add..." will query with a dialog whether to replace x with y. The dialog will have "OK" (replace) preselected if x < y, and "Cancel" otherwise. - If replacing an installed version x of an extension e with a version y fails because y has unsatisfied dependencies, or because y has a license to wich the user does not agree, version x is left installed afterwards. - Checking for already installed versions of an extension is only done within a single layer (unopkg versus unopkg --shared; "My Packages" versus "OpenOffice Packages" in unopkg gui/soffice), not across layers.