Re: Push Windows to Linux Repository Problem

2012-12-23 Thread Andreas Schwab
Dennis Putnam d...@bellsouth.net writes:

 I keep getting fatal: Could not read from remote repository.

Can you git ls-remote the repository?

Andreas.

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Re: Push Windows to Linux Repository Problem

2012-12-23 Thread Dennis Putnam
Hi Andreas,

Thanks for the reply and no, I could not. However, you put me on the
right track. Since I was only pushing/pulling from Windows to/from my
Linux repository, I did not realize that an SSH session from the Linux
back to Windows would ever be necessary. I don't really understand why
but apparently it is. I never set up that backwards connection. Once I
did, everything started working.

On 12/23/2012 4:06 AM, Andreas Schwab wrote:
 Dennis Putnam d...@bellsouth.net writes:

 I keep getting fatal: Could not read from remote repository.
 Can you git ls-remote the repository?

 Andreas.





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Using Eclipse git plugin

2012-12-23 Thread Dennis Putnam
This may be more of an Eclipse question than a git question but
hopefully someone on this list knows both. I now have a working git
central repository (on Linux) and a local repository clone (on Windows).
I can see and edit my files in Eclipse, commit them and push them to the
remote repository. The problem I am having now is developing my code in
Eclipse. It seems I can no longer run the code as the 'Run as
Application' menu item is missing. How do I test my code now? TIA.



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Re: [PATCH 2/2] learn to pick/revert into unborn branch

2012-12-23 Thread Junio C Hamano
Martin von Zweigbergk martinv...@gmail.com writes:

 On Sat, Dec 22, 2012 at 7:24 PM, Junio C Hamano gits...@pobox.com wrote:
 Martin von Zweigbergk martinv...@gmail.com writes:

From the user's point of view, it seems natural to think that
 cherry-picking into an unborn branch should work, so make it work,
 with or without --ff.

 I actually am having a hard time imagining how that could ever be
 natural.

 Fair enough. What's natural is of course very subjective.  ...
 happens to be empty. Of course, pretty much any operation that needs
 more than the tree (indirectly) pointed to by HEAD would fail the
 whenever possible clause. I realize that cherry-pick _does_ need the
 current commit to record the parent of the resulting commit,...

Yes, and I do not think it is an implementation detail.

I am not opposed to an internal use of the cherry-pick machinery to
implement a corner case of rebase -i:

1. Your first commit adds Makefile and hello.c, to build the
   Hello world program.

2. Your second commmit adds goodbye.c and modifies Makefile,
   to add the Goodbye world program.

3. You run rebase -i --root to get this insn sheet:

pick Add Makefile and hello.c for Hello world
pick Add goodbye.c for Goodbye world

   and swap them:

pick Add goodbye.c for Goodbye world
pick Add Makefile and hello.c for Hello world

4. The first one conflicts, as it wants to add new bits in
   Makefile that does not exist.  You edit it and make the
   result pretend as if goodbye.c were the first program you
   added to the project (i.e. adding the common build
   infrastructure bits you did not change from the real first
   commit back to Makefile, but making sure it does not yet
   mention hello.c).

5. rebase --continue will give you conflicts for the second
   one too, and your resolution is likely to match the tip
   before you started the whole rebase -i.

In step 4., you would be internally using the cherry-pick machinery
to implement the step of rebase -i sequence.  That is what I would
call an implementation detail.  And that is cherry-picking to the
root.  It transplants something that used to depend on the entire
history behind it to be the beginning of the history so its log
needs to be adjusted, but rebase -i can choose to always make it
conflict and force the user to write a correct log message, so it
won't expose the fundamental flaw you would add if you allowed the
end-user facing cherry-pick to pick something to create a new root
commit without interaction.

 In the same way, I think git reset should work on an unborn branch,
 even though there is no commit that we can be modifying index and
 working tree to match (from man page).

I agree that git reset without any commit parameter to reset the
index and optionally the working tree (with --hard) should reset
from an empty tree when you do not yet have any commit.  If HEAD
points at an existing commit, its tree is what you reset the
contents from.  If you do not have any commit yet, by definition
that tree is an empty tree.

But I do not think it has anything to do with cherry-pick to empty,
so I do not agree with In the same way at all.

 As for use cases, I didn't consider that much more than that it might
 be useful for implementing git rebase --root. I haven't implemented
 that yet, so I can't say for sure that it will work out.

I think it makes sense only as an internal implementation detail of
rebase -i --root.

 One use case might be to rewrite history by creating an new unborn
 branch and picking the initial commit and a subset of other commits.

If you mean, in the above sample history, to git cherry-pick the
commit that starts the Hello world and then do something else on
top of the resulting history, how would that be different from
forking from that existing root commit?

 Anyway, I didn't implement it because I thought it would be very
 useful, but mostly because I just thought it should work (for
 completeness).

I would not exactly call X complete if X works in one way in most
cases and it works in quite a different way in one other case, only
because it would have to barf if it wanted to work in the same way
as in most cases, and the different behaviour is chosen only because
X that does something is better than X that stops in an impossible
situation and barfs.

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Re: [PATCH 2/2] learn to pick/revert into unborn branch

2012-12-23 Thread Junio C Hamano
Christian Couder christian.cou...@gmail.com writes:

 I agree that it would be nice if it worked.

That is not saying anything.

Yes, it would be nice if everything worked.  But the question in the
thread is with what definition of 'work'?
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Re: [PATCH 2/2] learn to pick/revert into unborn branch

2012-12-23 Thread Junio C Hamano
Junio C Hamano gits...@pobox.com writes:

 Yes, and I do not think it is an implementation detail.

 I am not opposed to an internal use of the cherry-pick machinery to
 implement a corner case of rebase -i:
 ...
 In step 4., you would be internally using the cherry-pick machinery
 to implement the step of rebase -i sequence.  That is what I would
 call an implementation detail.  And that is cherry-picking to the
 root.  It transplants something that used to depend on the entire
 history behind it ...

Just to add another example, I do not think I would be opposed to
the case where you edit the root commit in the above example,
i.e. keeping the Hello world as the root commit, but modifying its
tree and/or log message. The internal impemenation detail has to
first chery-pick that existing commit on top of a void state before
it gives the user a chance to tweak the tree and commit the result
with a modified log message.  Just like commit --amend can be used
to amend the root commit, it logically makes sense the recreated
commit records nothing as its parent if done when HEAD is not valid
yet.
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Re: Re: Re: Re: Change in cvsps maintainership, abd a --fast-export option

2012-12-23 Thread Heiko Voigt
On Sat, Dec 22, 2012 at 09:15:19AM -0500, Eric S. Raymond wrote:
 sr@snark:~/WWW/cvsps/fixrepos$ git clone http://repo.or.cz/w/cvsps-hv.git
 Cloning into 'cvsps-hv'...
 fatal: http://repo.or.cz/w/cvsps-hv.git/info/refs not valid: is this a git 
 repository?

That link refers to the webpage of the repository. The clone url is found on
that page. Use this address for cloning:

git://repo.or.cz/cvsps-hv.git

Cheers Heiko
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Re: cvsps, parsecvs, svn2git and the CVS exporter mess

2012-12-23 Thread Heiko Voigt
Hi,

On Sat, Dec 22, 2012 at 12:36:48PM -0500, Eric S. Raymond wrote:
 If we can agree on this, I'll start a public repo, and contribute my
 Python framework - it's more capable than any of the shell harnesses
 out there because it can easily drive interleaved operations on multiple 
 checkout directories.

Please share so we can have a look. BTW, where can I find your cvsps
code?

 Anybody who is still interested in this problem should contribute
 tests.  Heiko Voigt, I'd particularly like you in on this.

If it does not take to much effort I could port my tests to the new
framework. Since I currently are not in active need of cvs conversions
its not of big interest to me anymore. But if it does not take too much
time I am happy to help.

From my past cvs conversion experiences my personal guess is that
cvs2svn will win this competition.

Cheers Heiko
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Re: [PATCH 2/2] learn to pick/revert into unborn branch

2012-12-23 Thread Philip Oakley

From: Junio C Hamano gits...@pobox.com Sent: Sunday, December 23,
2012 3:24 AM
Subject: Re: [PATCH 2/2] learn to pick/revert into unborn branch

Martin von Zweigbergk martinv...@gmail.com writes:


From the user's point of view, it seems natural to think that

cherry-picking into an unborn branch should work, so make it work,
with or without --ff.


I actually am having a hard time imagining how that could ever be
natural.

When you are on an unborn branch, you may have some files in your
working tree, and some of them may even be registered to the index,
but the index is merely for your convenience to create your first
commit, and as far as the history is concered, it does not matter.

By definition you do not have any history in such a state.  What
does it even mean to cherry-pick another commit, especially
without the --no-commit option?  The resulting commit will carry the
message taken from the original commit, but does what it says match
what you have done?



From: Junio C Hamano  Sent: Sunday, December 23, 2012 7:20 PM
Subject: Re: [PATCH 2/2] learn to pick/revert into unborn branch

Christian Couder christian.cou...@gmail.com writes:


I agree that it would be nice if it worked.


That is not saying anything.

Yes, it would be nice if everything worked.  But the question in the
thread is with what definition of 'work'?
--



From the dumb user perspective, I would have thought that the first

commit to be cherry picked for an unborn branch would be the complete
commit, which is then planted as the branch's start commit. We tend to
talk of cherry picking commits, though the documentation does say 'the
changes introduced', which allows such a (mistaken) user perspective for
this particular case.

It is only in retrospect, and a bit of extra thought, that one could see
that the commit's message would not actually describe the new situation
and should have been edited.

That doesn't mean that it would be right to allow such an initilisation
of an unborn branch, it's more an explanation of how the idea may have
developed.

Philip



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Re: cvsps, parsecvs, svn2git and the CVS exporter mess

2012-12-23 Thread Eric S. Raymond
Heiko Voigt hvo...@hvoigt.net:
 Please share so we can have a look. BTW, where can I find your cvsps
 code?

https://gitorious.org/cvsps

Developments of the last 48 hours:

1. Andreas Schwab sent me a patch that uses commitids wherever the history
   has them - this makes all the time-skew problems go away.  I added code
   to warn if commitids aren't present, so users will get a clear indication
   of when time-skew problems might bite them versus when that is happily
   impossible.

2. I've scrapped a lot of obsolete code and options.  The repo head
   version uses what used to be called cvs-direct mode all the time
   now; it works, and the effect on performance is major.  This also
   means that cvsps doesn't need to use any local CVS commands or even
   have CVS installed where it runs.

 From my past cvs conversion experiences my personal guess is that
 cvs2svn will win this competition.

That could be.  But right now cvsps has one significant advantage over
cvs2git (which parsecvs might share) - it's *blazingly* fast.  So fast
that I scrapped all the local-caching logic; there seems no point to it at
today's network speeds, and that's one less layer of complications to
go wrong.

I've removed a couple hundred lines of code and the program works
better and faster than it did before.  That's having a good day!
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Find the starting point of a local branch

2012-12-23 Thread Woody Wu
Hi, list

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.

Thanks in advance.
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I can't go back to yesterday - because I was a different person then.
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Re: Find the starting point of a local branch

2012-12-23 Thread Seth Robertson

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`?  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.
Note that this is the *last* divergence.  If your branch diverged and
merged previously that will not be reported.  Even worse, if you did a
fast-forward merge (I recommend against them in general) then it is
impossible to discover about what the independent pre-merge history
was really like.

-Seth Robertson
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Re: [PATCH] Python scripts audited for minimum compatible version and checks added.

2012-12-23 Thread Junio C Hamano
Junio C Hamano gits...@pobox.com writes:

 I needed something like this on top of it to get it pass t5800.

 diff --git a/git_remote_helpers/git/__init__.py 
 b/git_remote_helpers/git/__init__.py
 index 776e891..5047fd4 100644
 --- a/git_remote_helpers/git/__init__.py
 +++ b/git_remote_helpers/git/__init__.py
 @@ -1,3 +1,5 @@
 +import sys
 +
  if sys.hexversion  0x0204:
  # The limiter is the subprocess module
  sys.stderr.write(git_remote_helpers: requires Python 2.4 or later.)

Ping?  Is the above the best fix for the breakage?

If it weren't __init__, I'd silently squash it in, but the filename
feels a bit more magic than the ordinary *.py files, so I was worried
there may be some other rules involved what can and cannot go in to
such a file, hence I've been waiting for an ack or alternatives.

Thanks.
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Re: [PATCH] Python scripts audited for minimum compatible version and checks added.

2012-12-23 Thread Eric S. Raymond
Junio C Hamano gits...@pobox.com:
 Junio C Hamano gits...@pobox.com writes:
 
  I needed something like this on top of it to get it pass t5800.
 
  diff --git a/git_remote_helpers/git/__init__.py 
  b/git_remote_helpers/git/__init__.py
  index 776e891..5047fd4 100644
  --- a/git_remote_helpers/git/__init__.py
  +++ b/git_remote_helpers/git/__init__.py
  @@ -1,3 +1,5 @@
  +import sys
  +
   if sys.hexversion  0x0204:
   # The limiter is the subprocess module
   sys.stderr.write(git_remote_helpers: requires Python 2.4 or later.)
 
 Ping?  Is the above the best fix for the breakage?

Sorry, I missed this the first time around.  Yes, I think it is.
 
 If it weren't __init__, I'd silently squash it in, but the filename
 feels a bit more magic than the ordinary *.py files, so I was worried
 there may be some other rules involved what can and cannot go in to
 such a file, hence I've been waiting for an ack or alternatives.

Nope, no special rules.
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Re: Find the starting point of a local branch

2012-12-23 Thread Nguyen Thai Ngoc Duy
On Mon, Dec 24, 2012 at 11:09 AM, Seth Robertson in-gitv...@baka.org 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`?  The problem is git doesn't record this information and
 doesn't have the slightest clue.

Maybe we should store this information. reflog is a perfect place for
this, I think. If this information is reliably available, git rebase
can be told to rebase my whole branch instead of my choosing the
base commit for it.
-- 
Duy
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Re: Find the starting point of a local branch

2012-12-23 Thread Tomas Carnecky
On Mon, 24 Dec 2012 12:28:45 +0700, Nguyen Thai Ngoc Duy pclo...@gmail.com 
wrote:
 On Mon, Dec 24, 2012 at 11:09 AM, Seth Robertson in-gitv...@baka.org 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`?  The problem is git doesn't record this information and
  doesn't have the slightest clue.
 
 Maybe we should store this information. reflog is a perfect place for
 this, I think. If this information is reliably available, git rebase
 can be told to rebase my whole branch instead of my choosing the
 base commit for it.

What's the starting point of the branch if I type: git branch foo commit-ish?
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Re: Find the starting point of a local branch

2012-12-23 Thread Nguyen Thai Ngoc Duy
On Mon, Dec 24, 2012 at 12:34 PM, Tomas Carnecky
tomas.carne...@gmail.com wrote:
 Maybe we should store this information. reflog is a perfect place for
 this, I think. If this information is reliably available, git rebase
 can be told to rebase my whole branch instead of my choosing the
 base commit for it.

 What's the starting point of the branch if I type: git branch foo 
 commit-ish?

You start working off commit-ish so I think the starting point would
be commit-ish.
-- 
Duy
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Re: Find the starting point of a local branch

2012-12-23 Thread Jeff King
On Mon, Dec 24, 2012 at 12:28:45PM +0700, Nguyen Thai Ngoc Duy wrote:

  You want to know what commit was I at when I typed `git branch
  mybranch`?  The problem is git doesn't record this information and
  doesn't have the slightest clue.
 
 Maybe we should store this information. reflog is a perfect place for
 this, I think. If this information is reliably available, git rebase
 can be told to rebase my whole branch instead of my choosing the
 base commit for it.

Is that what you really want, though? We record the upstream branch
already, and you can calculate the merge base with that branch to see
which commits are unique to your branch. In simple cases, that is the
same as where did I start the branch. In more complex cases, it may
not be (e.g., if you merged some of the early commits in the branch
already).  But in that latter case, would you really want to rebase
those commits that had been merged?

The reason that git does not bother storing where did I start this
branch is that it is usually not useful. The right question is usually
what is the merge base. There are exceptions, of course (e.g., if you
are asking something like what work did I do while checked out on the
'foo' branch). But for merging and rebasing, I think the computed
merge-base is much more likely to do what people want.

-Peff
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Re: Find the starting point of a local branch

2012-12-23 Thread Junio C Hamano
Nguyen Thai Ngoc Duy pclo...@gmail.com writes:

 On Mon, Dec 24, 2012 at 12:34 PM, Tomas Carnecky
 tomas.carne...@gmail.com wrote:
 Maybe we should store this information. reflog is a perfect place for
 this, I think. If this information is reliably available, git rebase
 can be told to rebase my whole branch instead of my choosing the
 base commit for it.

 What's the starting point of the branch if I type: git branch foo 
 commit-ish?

 You start working off commit-ish so I think the starting point would
 be commit-ish.

Yeah, that sounds sensible.  Don't we already have it in the reflog,
though?

What is trickier is when you later transplant it to some other base
(perhaps prepare a topic on 'master', realize it should better apply
to 'maint' and move it there).  If the user did the transplanting by
hand, reflog would probably not have enough information, e.g. after

$ git checkout maint^0
$ git log --oneline master..topic
$ git cherry-pick $one_of_the_commit_names_you_see_in_the_above
$ git cherry-pick $another_commit_name_you_see_in_the_above
  ...
$ git branch -f topic

no reflog other than HEAD@{} will tell you that you were at maint^0,
so the reflog of topic wouldn't know it forked from there, either.
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Re: [PATCH 2/2] learn to pick/revert into unborn branch

2012-12-23 Thread Martin von Zweigbergk
On Sun, Dec 23, 2012 at 11:18 AM, Junio C Hamano gits...@pobox.com wrote:
 Martin von Zweigbergk martinv...@gmail.com writes:
 On Sat, Dec 22, 2012 at 7:24 PM, Junio C Hamano gits...@pobox.com wrote:

 I am not opposed to an internal use of the cherry-pick machinery to
 implement a corner case of rebase -i:

 3. You run rebase -i --root to get this insn sheet:

 pick Add Makefile and hello.c for Hello world
 pick Add goodbye.c for Goodbye world

and swap them:

 pick Add goodbye.c for Goodbye world
 pick Add Makefile and hello.c for Hello world

Right, and as you point out in your later message, editing the initial
commit is another (and more useful) use case. It could of course be
special cased in git rebase, but I think doing it git cherry-pick
is the right thing to do. Hopefully git-rebase.sh can then just reset
to the void state and git-rebase--interactive.sh can just continue
without knowing or caring whether it got started on an unborn branch.
Hmm... I just realized the branch in unborn branch really means we
don't have unborn detached HEAD, do we? So some more tricks are
probably necessary after all. :-(

 [...] It transplants something that used to depend on the entire
 history behind it to be the beginning of the history so its log
 needs to be adjusted, but rebase -i can choose to always make it
 conflict and force the user to write a correct log message, so it
 won't expose the fundamental flaw you would add if you allowed the
 end-user facing cherry-pick to pick something to create a new root
 commit without interaction.

If I understand you correctly, you are suggesting that git rebase
should set the action from pick to edit for the first commit in
the insn sheet if it is not a root commit. git rebase -i --root
doesn't currently do that, but it certainly could.

 I agree that git reset without any commit parameter to reset the
 index and optionally the working tree (with --hard) should reset
 from an empty tree when you do not yet have any commit.

Good to hear.

 But I do not think it has anything to do with cherry-pick to empty,
 so I do not agree with In the same way at all.

See later comment.

 One use case might be to rewrite history by creating an new unborn
 branch and picking the initial commit and a subset of other commits.

 If you mean, in the above sample history, to git cherry-pick the
 commit that starts the Hello world and then do something else on
 top of the resulting history, how would that be different from
 forking from that existing root commit?

True, the result would be the same. The user's thought process might
be a little different (let me start from scratch vs let me start
almost from scratch), but that's a very minor difference that I'm
sure any user would quickly overcome.

 Anyway, I didn't implement it because I thought it would be very
 useful, but mostly because I just thought it should work (for
 completeness).

 I would not exactly call X complete if X works in one way in most
 cases and it works in quite a different way in one other case, only
 because it would have to barf if it wanted to work in the same way
 as in most cases, and the different behaviour is chosen only because
 X that does something is better than X that stops in an impossible
 situation and barfs.

I agree, of course, but I don't see the behavior as different. When
thinking about behavior around the root of the history, I imagine that
all root commits actually have a parent, and that they all have the
same parent. I also imagine that on an unborn branch, instead of being
invalid, HEAD points to that same single root commit with an empty
tree. Despite this model not matching git's, I find that this helps me
reason about what the behavior of various commands should be.

With this reasoning, cherry-picking into an unborn branch is no
different from cherry-picking into any commit with an empty tree
(which of course would be rare, but not forbidden).
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Re: Find the starting point of a local branch

2012-12-23 Thread Woody Wu
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.  With the method of 'git
merge-base', I have to remember a branch tree in my brain.

But thanks anyway, I see you guys's discussions and it's a little hard
to understand to me at the moment. Currently, I still have to use gitk
with narrowed outputs.


 Note that this is the *last* divergence.  If your branch diverged and
 merged previously that will not be reported.  Even worse, if you did a
 fast-forward merge (I recommend against them in general) then it is
 impossible to discover about what the independent pre-merge history
 was really like.
 
   -Seth Robertson

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