Commits on Oct 13, 2021

1. ci(windows): ensure that we do not pick up random executables …

   On the Windows build agents, a lot of programs are installed, and added
   to the PATH automatically.
   
   One such program is Git for Windows, and due to the way it is set up,
   unfortunately its copy of `gpg.exe` is also reachable via the PATH.
   
   This usually does not pose any problems. To the contrary, it even allows
   us to test the GPG parts of Git's test suite even if `gpg.exe` is not
   delivered as part of `git-sdk-64-minimal`, the minimal subset of Git for
   Windows' SDK that we use in the CI builds to compile Git.
   
   However, every once in a while we build a new MSYS2 runtime, which means
   that there is a mismatch between the copy in `git-sdk-64-minimal` and
   the copy in C:\Program Files\Git\usr\bin. When that happens we hit the
   dreaded problem where only one `msys-2.0.dll` is expected to be in the
   PATH, and things start to fail.
   
   Let's avoid all of this by restricting the PATH to the minimal set. This
   is actually done by `git-sdk-64-minimal`'s `/etc/profile`, and we just
   have to source this file manually (one would expect that it is sourced
   automatically, but the Bash steps in Azure Pipelines/GitHub workflows
   are explicitly run using `--noprofile`, hence the need for doing this
   explicitly).
   
   Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>

   

   dscho committed Oct 13, 2021
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