On Sat, 5 Jul 2014, Karsten Blees wrote:
> 'git checkout' fails if a directory is longer than PATH_MAX, because the
> lstat_cache in symlinks.c checks if the leading directory exists using
> PATH_MAX-bounded string operations.
> Remove the limitation by using strbuf instead.
> Signed-off-by: Karsten Blees <bl...@dcon.de>
> This fixes a bug on Windows with long paths .
>  https://github.com/msysgit/msysgit/issues/227
For context: on Windows, PATH_MAX is ridiculously small. And it really is
that small, file functions of the Win32 API cannot handle longer paths.
However, there is a (pretty ugly, if you ask me) workaround: prefixing the
paths with "\\?\" and lo and behold, *many* (but not all) Win32 API
functions can then handle paths up to something around 32,000 characters!
The problem Karsten addressed here is caused exactly by this oddity: we
*can* handle paths much longer than PATH_MAX. Therefore, we need to
decouple the path buffers from that hardcoded limitation.
Karsten, you rock.
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