Antw: Re: Q: "git diff" using tag names
>>> Jakub Narebski <jnareb@gmail.com> schrieb am 28.10.2011 um 15:21 in Nachricht
<m3aa8l5k1y.fsf@localhost.localdomain>:
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> "Ulrich Windl" <Ulrich.Windl@rz.uni-regensburg.de> writes:
>
> > When using a somewhat older git (of SLES11 SP1 SDK),
>
> Nb. you can check version of git with "git --version".
Hi!
For the records, it's "1.6.0.2"...
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>
> > I could not
> > find a way to "git diff" between two tag names; I can only diff
> > between two commit numbers. I can display a changeset using "git
> > show", but that's not what I wanted.
> >
> > Is it possible to get the diff I want using older versions, and is
> > such a feature implemented in the current version? If so, since
> > when?
>
> From the very beginning in Git you can use tag name where you need
> commit identifier; Git would use commit that tag points to (will
> dereference or peel a tag).
As said before, I was confused by the simplicity: I was looking for an option to specify revisions (as opposed to file names), like "-r" for RCS, but found none. To make things complicated, I had mistyped one tag name without noticing, so I failed to diff, making me think that tag names won't work the way they actually do.
Sorry, and thanks to everybody who helped!
Ulrich
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>
> That is not possible in some [censored] version control systems; I am
> looking at you, Subversion!
>
>
> So if you can do
>
> $ git show v0.9
> $ git show v1.0
>
> you can also do
>
> $ git diff v0.9 v1.0
>
> and
>
> $ git log v0.9..v1.0