Re: RFC: checkout/temporary branch switch restoring modification times

On Mon, Oct 4, 2010 at 04:42, Justin Frankel [off-list ref] wrote:

I often find myself wanting to switch temporarily to another branch, and
then back to my original branch, but what I find is that my build tools
such as MSVC or Xcode) notice the file modification times changed on
the changed files, and then want to rebuild, even though the contents of
the files are the same.

I've implemented a perl script (tested on OSX and msysGit), which I've
named "git-cop" (so I can use via "git cop") to checkout,
preserving file modification times.

Maybe something like this is a worthwhile feature, although perhaps it
would be better to give each file a timestamp corresponding to when it
was last modified in Git? That would break in many cases, but a scheme
like this inherently does.

Have you tried to use ccache? It should reduce your build times by a
lot, so perhaps if you use it you won't need this anymore.