Mercurial temporary file nomenclature

[Matt Mackall]

On Mon, 2010-04-12 at 22:50 +0200, Jason Harris wrote:
> Since in OSX the dominant way to check for changed files by the system is FSEventStream's and these are directory only. See eg:
> http://developer.apple.com/mac/library/documentation/Darwin/Conceptual/FSEvents_ProgGuide/Introduction/Introduction.html
> 
> Are there any other alternatives?  I take it calling something along the lines of os.access(path, mode) is not sufficient?

No, this code is about determining whether the underlying filesystem
actually supports the exec bit despite the OS api presenting it. Think
mounting a VFAT fs under Unix.

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