Re: [PATCH/RFC 2/2] change all unchecked calls to setenv to xsetenv

[Jeff King <peff@peff.net>]

On Tue, Dec 13, 2011 at 01:10:27PM +0100, Erik Faye-Lund wrote:

> While reviewing some patches for Git for Windows, I realized that
> we almost never check the return-value from setenv. This can lead
> to quite surprising errors in unusual sitations. Mostly, an error
> would probably be preferred. So here we go.
> 
> However, I'm not at all convinced myself that all of these make
> sense; in particular settings like GIT_EDITOR and GIT_PAGER could
> perhaps benefit from having a warning printed rather than a hard
> error.
> 
> Thoughts?

I wrote almost the same patch once[1], but failed to actually push it
through to acceptance. There weren't any objections, just that nobody
really cared.  I think it's a reasonable thing to do. The chances of
setenv failing are very low, but the consequences could be quite bad.

There is also a call to putenv in git.c which should be checked (or
could arguably just be converted to setenv).

-Peff

[1] http://thread.gmane.org/gmane.comp.version-control.git/134466