CVS usage

SME Server core and contribs code is stored in CVS, this is a system to maintain version history and change management for program code.

On top of that a build system (plague) is layered to build packages in the RPM format used by yum.

The following is a cheat sheet that was started by Cactus here .

Repositories

There are two repositories hosting code for SME Server:

1. SME Server - holding the source code for the SME Server core
2. SME Contribs - holdint the source code for contribs (add-ons) for SME Server

Both repositories are organized by the package name under which they appear in the software installer in the server-manager (or yum).

SME Server repository

The SME Server repository holds the SME Server core source code. Everybody can have a look at the content of the repository, but not every one is to allowed to make changes to the code. More on helping development can be found [].

Browsing the source code

There is a nice web based interface through which you can browse the development of SME Server core packages and you can find it here.

SME Contribs repository

The SME Contribs repository holds the SME Server contribs source code. Everybody can have a look at the content of the repository, but not every one is to allowed to make changes to the code. The code in this repository is not linked to SME Server as such, most of it is written by experienced SME Server users, some of it by the core development team. If you want to develop a package that can be an addition to SME Server you can apply for an account for this repository and develop your contrib.

Browsing the source code

There is a nice web based interface through which you can browse the development of SME Server contribs and you can find it here.

Workflow

The basic workflow is to first setup your development environment this is described in Package Modification. After that you need to get a copy of the source of a package by checking out the source. Than you can make your modifications by making a copy with a suffix (patchname) and make your modification to the original. After that we first need to test what we did, therefore we need to make a local build

make local

and install and test the created package:

sudo -u root yum localinstall /path/to/packagename

If everything is successfully tested we need to create a tag in the CVS system:

make tag

And instruct the build system to build the package:

make build

	Note:
	Be sure to issue a make tag command to create a tag before you issue a make build.

Development stages/actions

Check out

To get a local copy of a package we need to retrieve the source from the repository, this is called a check out. To check out a package from the SME Contribs repository take a look at Package_Modification#Import_cvs.

Retrieving the latest version

If you already once checked out the source of a certain package you can update your local copy with the following command:

cvs update -dPA 

Check in or committing

To upload your source code into the repository (check in) you need to have a user account on the SourceForge system that is hosting the SME Server core and SME Server contribs repositories. Check in is quite simple

cvs commit -m 'message'

Adding/removing files

Since files under source control are not aware of the local file system we need to add and remove them with special commands:

To remove a file from source control:

cvs remove <file>

To add a file to source control:

cvs add <file>

Prepare a working copy

To prepare a working copy you can use

make prep

This command will download the latest source archive, extract it and apply all patches listed in the spec file.

Erasing your changes

To erase changes not committed to the repository you can issue

make clean

This command will remove all SRPMS and clear out the source directory in which you made modifications. It will give you a clear start as if you just checked out the latest version of the package from the repository.

Tagging

A tag is a mark in the source tree to document a certain stage of the development, usually a release version. To check the current tag number we can issue the following command:

cvs status -v *.spec

The output could look something like this:

 File: e-smith-apache.spec       Status: Up-to-date

   Working revision:    1.3
   Repository revision: 1.3     /cvsroot/smeserver/rpms/e-smith-apache/sme7/e-smith-apache.spec,v
   Sticky Tag:          (none)
   Sticky Date:         (none)
   Sticky Options:      -ko

   Existing Tags:
        e-smith-apache-1_2_0-15_el4_sme (revision: 1.2)
        e-smith-apache-1_2_0-13_el4_sme (revision: 1.1)

From this output you can see that the working revision of the (e-smith-apache) code is at version 1.3 and that the latest tag in the repository is 1.2, so we need to make a new tag for this release, we can use this command to do so:

make tag

Building

To instruct the build system to build the package we tagged you issue

make build

	Note:
	Before you do a 'make build' make sure you checked that everything builds locally and changes are tested and you have created a tag in the repository.