Re: Help regarding CVS setup

[Todd Denniston]

Sadia Tahseen wrote, On 02/29/2008 04:57 PM:
> Hello all ,Our lab consists of four dual processor machines running Linux. 
> we have one server with several machines, 
> and all users are set up in the network 
> and are able  to access to applications installed in the server , 
> and There are few folders which are made common to all the users ,
> One of them is 'appl' for applications.
>
> We want  to install the CVS for several users to collaborate in the development 
> of specific computational models .

I assume these computational models are in a computer programming language, 
such as C, C++, Fortran or lisp.

> So I have refered
>  various sources for configuring CVS where I
>  could learn I have to create another user say 'CVS'.

If I understood you correctly above, all of your users are already setup on 
all of the systems as real users, i.e, they can login to each one of the 
machines including (especially) the cvs server machine.

If that is the case you should not need to create another user. Also I suggest 
against using pserver, so you don't need to do user mapping.

if each of your users can
ssh cvs_server
where cvs_server is the name/ip address of your server machine, then you are 
half way to getting setup.

> So I have a doubt that can't I place a folder in 'appl ' folder 
> which is common to all the users.

is this 'appl ' folder a source folder or a common set of applications they 
need to build the project?

> So I would like to know the how and where  to install 
> and other directions to meet my requirements.
>
> Thank you
> Sadia

Further Assumptions:
1) you are root on the server or have sway with the person who is.
2) if you are the root person, you know a bit about Unix administration.
3) if you are using NIS/LDAP A) the cvs_server is also the NIS/LDAP server, B) 
you know how to map the /etc/* changes I indicate below to NIS/LDAP appropriately.
4) your user name is sadia, the next user in your group is user1..., or you 
know how to translate those example user names to the appropriate ones on the 
real system.
5) you and all of your users can secure shell into the cvs_server by typing 
`ssh cvs_server` pressing enter, and then giving your password or by using 
ssh-agents.
6) you know how to translate cvs_server and a_workstation to appropriate local 
machine names.
7) you are needing a quick start to see cvs in action.
8) you'll destroy the repo we setup here, and create one with more appropriate 
names when you know what you want to do. :)

as root on the cvs_server:
edit /etc/group and add a group for your cvs work, i.e. add a line similar to 
the following:
sadiascvsgroup:x:800:sadia,user1,user2,user3

then as sadia on cvs_server:
mkdir myExamplerepo
pwd #assumption it returns /home/sadia
export CVSROOT=/home/sadia/myExamplerepo
cvs init
mkdir myExamplerepo/projectdir
chown :sadiascvsgroup myExamplerepo/projectdir
chmod g+rws myExamplerepo/projectdir
#you'll want to tighten up security on the following directory later.
chown :sadiascvsgroup myExamplerepo/CVSROOT
chmod g+rws myExamplerepo/CVSROOT

then as sadia on a_workstation:
export CVSROOT=:ext:cvs_server:/home/sadia/myExamplerepo
export CVS_RSH=ssh
cvs checkout projectdir
date > projectdir/mydate
cvs add projectdir/mydate
cvs commit -m"a comment" projectdir/mydate
ls -R projectdir

You should see something like
projectdir:
CVS mydate

projectdir/CVS:
Entries  Repository  Root


as user1 on another_workstation:
export CVSROOT=:ext:cvs_server:/home/sadia/myExamplerepo
export CVS_RSH=ssh
cvs checkout projectdir
ls -R projectdir

You should see something like
projectdir:
CVS mydate

projectdir/CVS:
Entries  Repository  Root


now you or user one should be able to add files to projectdir and all of your 
users can check them out modify and commit version controlled changes to them.

hopefully you and the manual can either take it from here or get us some more 
specific questions.

--
Todd Denniston
Crane Division, Naval Surface Warfare Center (NSWC Crane)
Harnessing the Power of Technology for the Warfighter

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