Clear Case to Mercurial Conversion??

[Mark A. Flacy]

On 2007.12.18 18:41, Saravanan Shanmugham (sarvi) wrote:
> Has anybody imported ClearCase source into mercurial.My team needs to  
> develop on a couple of components that are currently
> hosted on ClearCase.  But we would like to create a Mercurial  
> repository
> from the Clearcase View/Branch and then work out of Mercurial.
> I couldn't find any tool to do that. I did see mention in the archives
> that some one had written scripts to do this, couldn't find a pointer  
> to
> it.

If you have a single view/branch that you intend to modify and have  
access to the patch command, then it is fairly trivial to do.

If you intend to mirror several branches in the same Hg view, you won't  
get much help from me.


I rsync a UCM dynamic view from work to home so that I may work upon it  
without being tunneled into work the entire time.  I "hg commit -A"  
after the rsync so that my home copy matches work.  I do whatever I have  
to do, checking in as needed.  When done, I "hg export  
[some_set_of_change_sets] >some_file", scp "some_file" to my work  
machine, and run a command that simply does...

grep "diff -r" /tmp/workstuff.diff | cut -c38- | xargs cleartool co -nc
patch -p1 </tmp/workstuff.diff

...where "/tmp/workstuff.diff" is the result of "hg export" that I  
copied to my work machine.

*Obviously* that script does not properly handle the addition and  
removal of files from the view as well as requiring you to be in a  
specific directory where the "patch" command will work.  The additions  
and deletions have been rare enough in my case that I simply hand manage  
those events.  Your mileage may vary.

-- 
Mark A. Flacy