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Subversion to ClearCase Issue

From: Silverman, Josh <Josh.Silverman_at_ngc.com>
Date: Mon, 12 May 2008 06:12:26 -0500

This issue comes up among us because we are using Subversion internally
but have to transfer our source files to a ClearCase repository used by
several related projects maintained by a different organization.

Transferring files from ClearCase to Subversion is relatively painless.
We dump the entirety of the VOBs from ClearCase into a working copy and
let Subversion sort out the changes. (While simple to perform, it is
not clear how to spot whether file are missed during the transfer. This
is not the main issue, but it is a running concern.)
However, merging code from Subversion to ClearCase is another problem
entirely. Currently we run a "diff" of the two repositories using the
Beyond Compare. We have to tweak Beyond Compare a bit to account for
the meta-data issues, but eventually we get a list of conflicting and
orphaned files. We then check out each individual file change and copy
each new file from Subversion into ClearCase, and manually add those
files and directories into source control. For each VOB in ClearCase,
we copy all conflicting files from Subversion, overwriting the existing
versions in ClearCase. This is a very cumbersome process for an update
that may involve no more than 10 or 12 file changes. Is there any way
that we can simply dump the Subversion changes into ClearCase? Is
there, for example, a tool that can be used that can facilitate
communication between the two tools? I realize that this primarily a
ClearCase issue -- it is an extremely unfriendly tool -- but I was
wondering if the Subversion group had any experience with this.

Thanks for your help,
Josh Silverman
Northrop Grumman Corporation

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Received on 2008-05-12 13:12:40 CEST

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