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Release Preparation

Notes for the release of Kvalobs as Open Source Software

Composition of release

NB internal links below

Also required

The puTools library is to be released under subversion separately (i.e. shared with other projects such as Diana). puTools is already an open-source library under LGPL 2.1.

Overall project name

The software to be released as open source has been collectively termed “kvalobs” in discussions between and smhi. However, the s/w comprises four parts: kavlobs, kvalobs_metadata, kvhqc and kvhqc_apps

It is proposed to group the software under one project name. Here are some suggestions:

  • kvalobs
  • kvnose [no:norge se:sverige]
  • kvoss [oss:open source software]

+Please email with your preference/proposal.

++++++ Consensus of opinion is to use kvoss as the name for the full bundle.

One advantage of this is that access to the group of s/w in subversion can be achieved by only setting access to a single folder.

Proposed structure under subversion

… using the project name kvoss

i.e. in general      

Initial population

  1. prepare the directories trunk, branches and tags under all projects
  2. (kvalobs example) copy from cvs/kvalobs to
  3. also tagged copy to with –message “copy of first source code available as open source project”

Gaining write access

Full access to subversion requires a user account to be set up by the subversion server system administrator. Proposal: This can be achieved by having an email address for request of account available on the project wiki pages. The address will be to a moderator (or group of moderators) who then inform system administrator that a new account is needed (forward email to system administrator).

+Email address for account administration to be set up.

Initial Revision.

Propose that the first versions opened on subversion will be a snapshot of the latest version on cvs. The first repository will not constitute a release and hence will have no explicit versioning applied.

We should note that the s/w run at is mature (and for kvalobs it is version for example), however steps are required to make the s/w more accessible for use in an open-source context. These steps may include:

  1. Tidy up source tree
  2. Provision of a detailed installation guide
  3. Removal of any specific environment features (e.g. the kvalobs database has to be run by a user kvalobs)
  4. Provision of an autoconf script or similar autobuild tools.

After these steps have been accomplished we can think of having a “release” tagged under subversion.


All software, not already under license, to be placed under the GNU General Public License (GPL)

In the repository the full license will be imported in the file COPYING e.g.

Propose to start with GPL v2. There are still ongoing discussions about GPL v3 in the open-source community. GPL v2 is sufficient for the needs of kvoss.

Example header:

Kvalobs - Free Quality Control Software for Meteorological Observations


Copyright (C) 2007

Contact information:
Norwegian Meteorological Institute
Box 43 Blindern
0313 OSLO

This file is part of KVALOBS

KVALOBS is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.

KVALOBS is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
General Public License for more details.

You should have received a copy of the GNU General Public License along
with KVALOBS; if not, write to the Free Software Foundation Inc.,
51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

And similar for kvalobs_metadata, kvhqc, etc.

See for other acceptable variations on the above header.

Copyright Handling

All code is now issued with “Copyright (C) 2007” How will the evolution of the copyright be handled?

Shall we adopt a policy of “Contributor license agreement” or establish a project legal entity, and assign copyright to that?

Third party libraries

No known conflicts are known with respect to external libraries employed by kv projects.

E.g for kvalobs:

Package License Comment Compatibility with kvalobs under GPL
Postgresql BSD License A modified BSD with no advertising clause OK
Boost BOOST license OK
SQLlite N/A Public Domain OK
QT QT license Open Source Edition OK
puTools LGPL product OK
pkgconfig GPL 2 OK

See (for some detail)

+Reviewers of this document please think if there are any other issues here.


Full documentation trees already exist under cvs and therefore these will be copied to subversion and remain under configuration control. Documentation is also being placed into DokuWiki, this shall also be copied into the external wiki server for the project


Bugzilla for the project will be available at the DMZ: ???????????????. As a start existing bugs from the internal bugzilla and items not included in that list shall be copied into the shared bugzilla for the open source project.

The TODO list will be phased out since only a tool such as bugzilla is appropriate for managing anomaly reports in the open source project.

Kvalobs Wiki

Initial content being prepared:

  • This document
  • Mission statement
  • Description of policies for using subversion repository
  • Link to Project Bugzilla page
  • Details of group email tool
  • Details of discussion forum
  • Email for user access request

Proposal: expand the alias to also include people now, so that we have one email for announcements etc.


Automatic documentation builds by doxygen every week and stored in svn.

+Please add other ideas…

Procedure for CVS to SVN

Some steps for a smooth transition

  • all activity of the CVS repositories stops

Except for:

  • Scripts are run to add headers to all files, results checked and final commits made,
  • System administrator performs CVS to SVN migration,
  • Internal project team checks the integrity of new repository,
  • Launch of project is announced,
  • We all work from svn thereon!
kvalobs/prerelease.txt · Last modified: 2007-10-06 14:05:15 by paule