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RE: CVS questions
RE: CVS questions
Wed, 29 Oct 2008 08:14:01 -0500
> I had explored the ideas of using branches and tags but quite
> frankly, it was very confusing so to be on the safe side, I simply
> cloned the 6.3 (\CVSROOT\WC6\) repository to \CVSROOT\WC7 and
> checked out WC7.
Wildcat! I used to run a BBS for a local university in the late 80's...
I used Wildcat. Talk about a blast from the past. I would have had no
idea it was still around.
I'm not sure why branching is confusing. It's very simple.
mkdir repository sandbox6
cvs -d /home/kbulgrien/tmp/repository init
cvs -d /home/kbulgrien/tmp/repository co .
echo "this is version 6" >source.txt
cvs add source.txt
cvs commit -m "v6 example" source.txt
echo "v6.3" >source.txt
cvs commit -m "v6.3" source.txt
cvs tag v6_3
cvs tag v7_0_BEGIN
cvs tag -b v7_0_DEVEL
cvs -d /home/kbulgrien/tmp/repository co -r v7_0_DEVEL .
echo "this is the first v7 change
echo "this is the first v7 change" >source.txt
cvs commit -m "add v7 feature"
/home/kbulgrien/tmp/sandbox6 contains your version 6 sources
and sandbox7 contains your version 7 sources. From either
sandbox, though, you can check the differences to each other.
cvs diff -r v6_3
Keeping up with the two sources is now quite easy.
I won't go into merging. You could either use built in merge
facilities of CVS, or you could even just use the differences
and manually merge things.
> My questions:
> I had been working on WC7, making all my changes for the
> newer compiler,
> etc, and now I am written to commit this.
> 1) How should I "tag" this, what switches should I use? do I
> use a Branch?
The branch from 6 to 7 is made one time... other than at the point
of the branch, you tag like you always did. As for making the branch
I always make a normal tag that shows where the branch was made and
a branch tag so that it is much easier to see differences to the
branch point - very helpful when merging changes back and forth.
> Which leads me to my 2nd question:
> 2) Is there a "enhanced" version of CVS that allows for two different
> "trunks" per se?
The branch checkout acts as its own "trunk" per se. I have a hard time
visualizing what you think a dual trunk would look like. As far as SVN
or other version controls systems go... I would think it quite obvious
that it would be a lot more difficult / time consuming to completely
change your version control system than to learn how to use branching,
even if switching over appeared/was trivial.
Kevin R. Bulgrien
Design and Development Engineer
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