Patchtool: Difference between revisions

Latest revision as of 04:58, 16 March 2023

we are not using patches anymore

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-== sources ==
+we are not using patches anymore
-* this tool uses the bsdiff algorithm from http://www.daemonology.net/bsdiff/
-* see in the OpenPetra.org bazaar:
-** [http://bzr.openpetra.org:8088/loggerhead/trunk/annotate/head:/csharp/ICT/Common/IO/PatchTools.cs managed bsdiff library]
-** [http://bzr.openpetra.org:8088/loggerhead/trunk/files/head:/csharp/ICT/PetraTools/PatchTool/ OpenPetra.org PatchTool]
-== description ==
-* for creating a patch, we need a tar.gz file from the previous release and the current release
-* each release contains a version.txt file in the bin directory, to be able to determine the currently installed version
-* individual files can be replaced in a production environment, as long as the original file is stored with the .orig extension
-* for building the patch, we use the original bsdiff program which is written in C. It is available for Windows and Linux. It is much faster as a version we wrote in Managed Code, though that is probably due to lack of time and knowledge how to make the algorithm work fast in C# as well.
-* for applying the patch, our managed code works quite well, so we don't require an additional binary on the production machines