Re: Versioning of tree

[Linus Torvalds]

On Thu, 21 Oct 2004, Måns Rullgård wrote:
> 
> Would it work to somewhere in the Makefile check for the existence of
> a BitKeeper directory, and if it exists run bk with the appropriate
> arguments and append something to EXTRAVERSION?  I'm not quite sure
> which information is the best to add, though.

That's what I had in mind. But it should also check if the top-of-tree is 
already tagged, and not do anything for that. And it should also hopefully 
have a CVS/Subversion equivalent, just so that people don't feel left out.

I would _suggest_ just exporting the whole top-of-tree tag to some
/sys/kernel/version file (for full bug-reports), but in addition also 
maybe have a small hash of it (just a few characters of noise) in "uname", 
to make module versioning work.

So "uname -r" might print out "2.6.9-a$Uv", but then a

	cat /sys/kernel/version/*

would print out something like

	"kernel" file:
		v2.6.9-a$Uv
	"bk-key" file:
		torvalds@xxxxxxxxxxxxxxx|ChangeSet|20041021004441|21737
	"date" file:
		Wed Oct 20 22:29:23 PDT 2004

or something (one value per file as usual)

		Linus
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