Re: Repeatable Extraction
From: Johannes Schindelin <hidden>
Date: 2016-10-04 10:26:09
Hi Chris, On Tue, 27 Sep 2016, chris king wrote:
Is there a way automate extraction that will repeatably generate the
same files? Currently, each time I extract git portable many of the
binaries change slightly. For example, if I extract twice using
PortableGit-2.10.0-32-bit.7z.exe -y -gm2
then Beyond Compare tells me that many of the files in usr\bin have
changed at offset 0x88 and 0x89. Why is that?The reason is that you look at 32-bit, where technical limitations force us to hard-code a certain base address for all of the includede MSYS2 .dll files (i.e. all libraries that require, or implement, the POSIX emulation layer called MSYS2). To avoid clashes with other .dll files, that base address is adjusted via the post-install.bat script for your particular environment. If you want to avoid that, you will have to extract the installer via 7-Zip: it is a self-extracting .7z archive (and the self-extractor automatically executes post-install.bat, which subsequently deletes itself). Ciao, Johannes