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RE: Merge issue with deleted files

From: Risman, Mark
Subject: RE: Merge issue with deleted files
Date: Thu, 5 Nov 2009 12:12:56 -0500


By using the update command with the two "j" arguments, you'll "merge
the differences between any two revisions into your working file."

The way I understand it, it's as if you were to look at the diff from
revision <first "j" argument> to revision <second "j" argument>, and
apply that to what's in your checkout. Kind of like how "cvs diff -e"
will create a set of commands that can be applied to the first revision
to produce the second.

In this case, the diff between those two revisions is "remove file". So
CVS applies a "remove file" to that file in your checkout. Would a
conflict be more desired in this case?

-----Original Message-----
From: address@hidden
[mailto:address@hidden On Behalf Of
Sent: Wednesday, November 04, 2009 2:16 PM
To: address@hidden
Subject: Merge issue with deleted files

I have been using CVS for quite a while and started doing merges back
about 4 years ago. Since, I have not run into any problems, till now
that is. I would appreciate any help on this.

Env: I am running CVS client and server 1.11.22 on Linux 2.6 Kernel.

I have run into this issue when merging from one branch onto another.
A file had been removed on branch B1 and modified on branch B2 with a
couple of revisions (irrelevant perhaps, we were doing some

Branch B2 is my target branch - so I am merging B1 into B2.

I have merged using two join commands so the common ancestor has been
passed to cvs as the first -j. To my surprise, the file got removed
from B2 branch by the merge, and was not flagged as a conflict - which
I would have thought should happen in this scenario.

# checked out B2
cvs -q up -dP -jB1_ROOT -jB1 -kk

Where B1_ROOT is rev 1.6 and B1 branch has been created off of
B1_ROOT. I have on B1 which is marked as 'dead' and
in B2 -- we had two revisions on branch B2 since B1 was created at 1.6

When I noticed this, I have also tried using one -j essentially
passing the branch name which also corresponds to the latest revision
on the B2 branch. At the same time, in this particular case it would
have also been alright I believe to use only 1 -j since it was the
first merge from B1 to B2 so I would not have to worrry about merge
history and the like.

cvs -q up -dP -jB1 -kk

There is a message been spit out by CVS 'file XX has been modified,
but has been removed in revision B1 but the file is not been marked as
a conflict, its status is 'up-to-date'. I am not sure what to do in
the future about this because sometimes I do need to merge more than
one time from a branch, in which case I would need to use two -j and I
would run into the same issue.


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