On Mon, Dec 24, 2012 at 09:24:39AM -0800, Martin von Zweigbergk wrote:
> On Sun, Dec 23, 2012 at 11:31 PM, Woody Wu <narkewo...@gmail.com> wrote:
> > On Sun, Dec 23, 2012 at 11:09:58PM -0500, Seth Robertson wrote:
> >>
> >> In message <20121224035825.GA17203@zuhnb712>, Woody Wu writes:
> >>
> >>     How can I find out what's the staring reference point (a commit number
> >>     or tag name) of a locally created branch? I can use gitk to find out it
> >>     but this method is slow, I think there might be a command line to do it
> >>     quickly.
> >>
> >> The answer is more complex than you probably suspected.
> >>
> >> Technically, `git log --oneline mybranch | tail -n 1` will tell you
> >> the starting point of any branch.  But...I'm sure that isn't what you
> >> want to know.
> >>
> >> You want to know "what commit was I at when I typed `git branch
> >> mybranch`"?
> >
> > Yes, this is exactly I want to know.
> >
> >>The problem is git doesn't record this information and
> >> doesn't have the slightest clue.
> >>
> >> But, you say, I can use `gitk` and see it.  See?  Right there.  That
> >> isn't (necessarily) the "starting point" of the branch, it is the
> >> place where your branch diverged from some other branch.  Git is
> >> actually quite able to tell you when the last time your branch
> >> diverged from some other branch.  `git merge-base mybranch master`
> >> will tell you this, and is probably the answer you were looking for.
> >
> > This is not working to me since I have more than one local branch that
> > diverged from the master, and in fact, the branch I have in question was
> > diverged from another local branch.
> As Jeff mentions in a later message, "git pull --rebase" would
> probably do what you want. It works with local branches too.

I think what 'git pull --rebase' would do is to fetch from the origin
and do a 'git rebase'.  On one hand, I don't understand 'git rebase' so
much from the manual, ont the other hand, I did not get the point why
'git rebase' has something to do with the thing I want to do (what I
want is just query some kind of history information).

I know, my knowledge about git is still so limit. I will keep study from
the man pages.

> I once tried to add the same cleverness that "git pull --rebase"
> directly in "git rebase" [1], but there were several issues with those
> patches, one of was regarding the performance ("git pull --rebase" can
> be equally slow, but since it often involves network, users probably
> rarely notice). I think it would be nice to at least add it as an
> option to "git rebase" some day. Until then, "git pull --rebase" works
> fine.
>  [1] http://thread.gmane.org/gmane.comp.version-control.git/166710

I can't go back to yesterday - because I was a different person then.
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