[p4] finding a branch point

[Noel Yap]

I was just thinking, my goal is to create a new branch from the branch point of an existing branch.  Would the following work?

1. Create a new branch spec that gets its stuff from the older branch (eg an older release branch).
2. Integrate using this branch spec using #1 (ie the first submit onto the older branch).
3. Submit the integration.
4. Modify the branch spec such that it gets its stuff from the main development branch.

Thanks,
Noel

Chuck Karish wrote:
> 
> Noel Yap wrote:
> 
> >How can I figure out at what change number an integration for a specific branch occured.
> >
> >For example, if the following command were done:
> >
> >  p4 integrate //depot/foo/bar/dev/... at 32768 //depot/foo/bar/1.0/...
> >
> >then given only the branch //depot/foo/bar/1.0/...
> >
> >How can I figure out that it was originally populated up to the change set @32768.
> >
> This is not going to be pretty ...
> 
> Find the versions of the source files for the integration by doing 'p4
> filelog -m1 <file>#<integration_submit_change>'
> for each file in the changelist for the submit of the integration.
> 
>  From the output of these commands extract the lines that contain the
> word 'from'.  These give you the revisions
> of the files from which the integrations were done.
> 
> Run 'p4 filelog -i' on each of the filespecs extracted from the 'from'
> lines, and extract lines containing 'change'
> from the output.  This gives you the change numbers for the deltas that
> were integrated to the new branch.
> These change numbers should all be less than or equal to the change
> number in the integrate command.
> 
>   Chuck