How to recover file permissions when checking out from git

[wyldckat]

While taking care of the installer for blueCFD-Core 2017-1 (Issue #59), it was spotted a considerable flaw in the executable permissions not being preserved properly.

[wyldckat]

Technically, in order to recover the correct executable flags, users have to run the following commands:

foam
git config --local core.filemode true
git checkout .

However, it's not that simple when the ACL permissions are not absolute. In other words, if blueCFD-Core is not installed in a folder fully controlled by the user, then this will not work properly, because chmod (or MSys2 itself?) can't do its magic on Windows for setting the (non-)executable flag, which relies on some crazy ACL manipulation. This is why we are not able to make the installer get the job done automatically.