What is a branch?

[Yao Zhang]

On Thu, Feb 14, 2008 at 10:24:09AM -0200, Martin Marques wrote:
 
> Let's say I'm on tip (HEAD off the development tree) I want to start to 
> freeze the development to release version 2.0. In cvs this would be done 
> with "cvs tag -b" which makes the branch and tags it (thats like named 
> branches in hg).
> 
> Now, how is this done in hg?

For example, you are at changeset Cf, which is the freeze point,
    ... -> Cf
subsequent changeset on the development tree will be Cd1, Cd2, etc.
    ... -> Cf -> Cd1 -> Cd2 -> ...      (development trunk)
To go back to the freeze point and make a branch leading to 2.0
release,
    hg update -C Cf             # go back to the freeze point
    hg branch v2                # start a new branch name "v2"
                                # make changes in working directory
    hg commit -m "Changes leading to v2 release."   # changeset Cb1 in branch
Now the history looks like
    ... -> Cf -> Cd1 -> Cd2 -> ...      (development trunk)
            \
             -> Cb1 -> ...              (branch leading to 2.0)

Regards,

-- 
張堯

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