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
>> 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
> 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 once tried to add the same cleverness that "git pull --rebase"
directly in "git rebase" , 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
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