Re: why is git destructive by default? (i suggest it not be!)

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David Jeske wrote (2008-06-23 22:01 -0700):

> On Mon, Jun 23, 2008 at 9:59 PM, Teemu Likonen <tlikonen@xxxxxx>
> wrote:
> 
> > I'm also quite new and I actually feel safe using git, and it's
> > because of reflog. No matter what I do (except manual reflog expire)
> > I can see where I was before with command
> >
> >  git log --walk-reflogs
> 
> 
> Perhaps I'm misunderstanding how to read it, but how do you tell where
> a branch was from the reflog if you inadvertantly moved it?

Perhaps I'm misunderstanding what you mean but I try to explain. In git
branches are nothing but named pointers to certain commit. If you "move
a branch" you actually rename the pointer, nothing more. With command

  git log --walk-reflogs --all

you can see everything in your reflog. When branches are moved (i.e.,
renamed) in "git log --walk-reflogs" output it shows like this:

  commit 269f10bca2273c1cf77831d5e23c6e0361217697
  Reflog: refs/heads/master@{2008-06-24 08:15:56 +0300} (Teemu Likonen <tlikonen@xxxxxx>)
  Reflog message: Branch: renamed refs/heads/master to refs/heads/testbranch
  Author: Teemu Likonen <tlikonen@xxxxxx>
  Date:   2008-03-25 19:10:40 +0200
  
  [commit message]

See the "Reflog message" field above. It tells what happened. The
"Reflog" field tells when it happened. If I later remove this
"testbranch" I can browse the reflog and create this branch (i.e.
a pointer) again with command "git branch testbranch 269f10bca". The
269f10bca comes from the commit ID of the above log item.

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