3. Setting up CVS

First you need to install the CVS package, on Redhat linux use

cd /mnt/cdrom/Redhat/RPMS
rpm -i rcs*.rpm
rpm -i cvs*.rpm
To see the list of files installed do -
rpm -qpl cvs*.rpm | less

On other flavors of unix, you may need to download the RCS and CVS tar balls and follow README, INSTALL files to setup CVS. Visit http://www.cyclic.com and http://www.loria.fr/~molli/cvs-index.html

3.1 Environment variables

The following environment variables need to be setup in /etc/profile - default values required for all users. If not set in /etc/profile, than you should add these to your local profile file  /.bash_profile.

export EDITOR=/bin/vi
export CVSROOT=/home/cvsroot
export CVSREAD=yes

Create a directory to store the source code repository and give read, write access to unix group/user. Also make sure that the directory name of CVSROOT does not contain any blank spaces. For example CVSROOT should not be like '/home/my rootcvs'.

export CVSROOT=/home/cvsroot
mkdir $CVSROOT
chmod o-rwx $CVSROOT
chmod ug+rwx $CVSROOT

chgrp users $CVSROOT

cvs init

# Change directory is a must
cd $HOME/my_source_code_dir

# Must give vendor tag and revision tag
cvs import my_source_code_dir V1_0 R1_0  

3.2 Migrate RCS to CVS

To migrate the existing RCS files to CVS, use the following script. Make sure that you installed korn shell package pdksh*.rpm from Linux contrib cdrom.

NOTE : Korn shell /bin/ksh is obtained by installing pdksh*.rpm from Linux contrib cdrom

#!/bin/ksh

#############################################################
# Program to Migrate the existing source code in RCS to CVS 
#
# Needs the korn shell RPM package  pdksh*.rpm from Linux 
# contrib cdrom
#############################################################

#
# rcs2cvs - convert source tree from RCS to CVS
#

# project to convert
PROJECT='project'

# current RCS root
RCSROOT="$HOME/rcs"

if cd "$RCSROOT/$PROJECT"
then
        cd "$RCSROOT"
else
        echo >&2 "`basename "$0"`: can't change to RCS directory '$RCSROOT/$PROJECT'."
        exit 1
fi

# current CVS root
CVSROOT="$HOME/cvs"

# create new CVS directory for project 'project'
if mkdir "$CVSROOT/$PROJECT"
then
        :
else
        echo >&2 "`basename "$0"`: can't create CVS directory '$CVSROOT/$PROJECT'."
        exit 2
fi

# create CVS project tree from RCS tree
find "$PROJECT" -type d -name RCS -print |
while read RCS
do
        CVS="`dirname "$RCS"`"
        (if cd "$RCS"
        then
#               if find . -type f -name '*,v' -print | cpio -pdmv "$CVSROOT/$CVS"
                if find . -type f -print | cpio -pdmv "$CVSROOT/$CVS"
                then
                        :
                else
                        echo >&2 "`basename "$0"`: can't convert RCS subdirectory '$RCSROOT/$RCS' to CVS subdirectory '$CVSROOT/$CVS'."
                fi
        else
                echo >&2 "`basename "$0"`: can't change to RCS subdirectory '$RCSROOT/$RCS'."
        fi)
done