Re: diff against a tag ?

From: Linus Torvalds <torvalds@osdl.org>
Date: Apr 28, 2005, 22:22 UTC
Message-ID: <Pine.LNX.4.58.0504281518100.18901@ppc970.osdl.org>
In-Reply-To: <20050428220626.GC15706@redhat.com>

On Thu, 28 Apr 2005, Dave Jones wrote:

>
> Groovy. Is it 'THE LAW' that the first one it reports will always be
> the most recent tag ?

Nope. They are reported in the order they are found, which is not meaningful at all (it depends on the directory ordering, with the highest-level bits being obviously ordered by the sha1 number thanks to the subdirectory stuff).

So you can only see the name of the tag - there's no ordering. The tag-name may of course imply an ordering in itself..

Show 9 quoted lines

> Hmm, in a fresh rsync from your kernel tree, I get this..
> tagged commit a2755a80f40e5794ddc20e00f781af9d6320fafb (v2.6.12-rc3) in 0397236d43e48e821cce5bbe6a80a1a56bb7cc3a
> tagged commit 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (v2.6.12-rc2) in 9e734775f7c22d2f89943ad6c745571f1930105f
> expect dangling commits - potential heads - due to lack of head information
> dangling tag 0397236d43e48e821cce5bbe6a80a1a56bb7cc3a
> dangling commit 9acf6597c533f3d5c991f730c6a1be296679018e
> dangling tag 9e734775f7c22d2f89943ad6c745571f1930105f
> 
> Is that last part to be expected ?

It even says so: "expect dangling commits".

The tags will always be dangling, since nothing refers to them. Once you have them listed in your tag database (ie you've created files that mention them in .git/refs/tags or something), you can tell fsck about them, and fsck won't complain.

Something like

	fsck-cache --unreachable $(cat .git/refs/*/*)

would do it (and depending on exactly how cogito ends up recording them).

		Linus