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Guidelines for the FastJet Contrib area
---------------------------------------
The FastJet contrib area is intended for developers of FastJet-related
C++ tools, so as to provide easy access to their work in a common,
publicly accessible location.
If you wish to add code to the fastjet-contrib repository, please
follow the guidelines indicated below, intended to give users a
reasonably uniform experience and to facilitate versioning and quality
control.
For further information about making contributions, please contact
fastjet@projects.hepforge.org
======================================================================
Basic developer usage
=====================
# check out the overall contrib directory
svn checkout http://fastjet.hepforge.org/svn/contrib/trunk fjcontrib
cd fjcontrib
# get the existing contribs (optional, but useful)
scripts/update-contribs.sh
# start your new contrib, choosing your own "ContribName" (*)
# Running this script produces a template for the new contrib
# in the form of a new ContribName/ subdirectory of fjcontrib,
# including a basic Makefile (further info below)
scripts/new-contrib-from-template.sh ContribName
# once you have something worth committing, write to
# <fastjet@projects.hepforge.org> to get write access to the
# fjcontrib svn.
#
# [ To help us set up your account, if the htpasswd command is available
# to you, then send us your encrypted password using the output of
#
# htpasswd -mn YOUR-CHOSEN-USERNAME
# ]
#
# and then run
scripts/register-new-contrib.sh ContribName
# within your pre-existing ContribName/ directory you can now "svn
# add" your files, commit them etc.
# when you're ready to make a versioned release, make sure that
# - all required files (AUTHORS, COPYING, NEWS etc.) are up to date
# - VERSION includes the version number for the release
# - "make check" and "make install" both work
# - everything is committed
# then run
scripts/release-contrib.sh ContribName
# send a mail to fastjet@projects.hepforge.org with a request for
# that version to be made public
(*) Note that if you have previously "registered" your contrib (i.e.
you have run "scripts/register-new-contrib.sh ContribName") you can get
it in a fresh checkout of the overall fjcontrib directory by running
scripts/update-contribs.sh ContribName trunk
Please refrain from developing other people's contribs without first
consulting them!
Note: currently there is no mechanism for handling external
dependencies (ROOT, gsl, etc.), nor for handling dependencies between
different contribs.
======================================================================
Further details
===============
Each contribution is the responsibility of its authors. The FastJet
authors will not provide direct support.
Each contribution must be in a directory of its own. The name of the
directory will also by default be used for the library component.
Each contribution should be made available under the terms of the GNU
General Public License (v2 or later), or if the author wishes, under a
more permissive license that is compatible with the GNU GPL.
Each contribution should include the following files (automatically
put in place when you run scripts/new-contrib-from-template.sh, see below):
- COPYING: giving license information
- AUTHORS: names of authors, including current email addresses
- README: giving a basic explanation of the scope and usage of the
contrib and indication of which work should be cited by users of
your code. Please mention any external dependencies, e.g. ROOT,
GSL, Boost, etc.
- at least one example program (e.g. example.cc) using the contrib
tool or plugin, together with a file containing the expected
output (example.ref).
- VERSION: a version number, e.g. 1.0.x, which would be updated to
2.0.x in the event of a major change.
- NEWS: to indicate what has changed in each new version
- ChangeLog: finer grained details of day-to-day changes
======================================================================
Build system
============
Each contribution should include a Makefile. A reasonable default
is generated when you run scripts/new-contrib-from-template.sh
A few variables appearing at the top of the Makefile may need to be
modified:
- NAME
- SRCS
- EXAMPLES
- INSTALLED_HEADERS
Additionally you will need to ensure that "make check" works. By
default it does the following:
- builds the "example" program,
- runs it, reading ../data/single-event.dat from standard input
- compares the output to the "example.ref" file (after stripping
lines that started with "#")
In most cases, to get "make check" to work, it is sufficient to
replace the template's example.ref file with the correct output from
your program. If you want to use a different input file, modify the
relevant line in the Makefile.
You may also write your own Makefile (or adapt one from
scripts/internal/Template/Makefile ). In this case
- It should prominently define a variable FASTJETCONFIG
near the beginning of the file. By default FASTJETCONFIG should be
set to fastjet-config, i.e. the contribution should build out of
the box if fastjet-config is in the user's path.
- It should include the following targets
. all
. check
. install
. examples
. clean
. distclean
======================================================================
Structure of the svn repository
===============================
The repository at
http://fastjet.hepforge.org/svn/contrib/ (read-only)
https://fastjet.hepforge.org/svn/contrib/ (read-write)
svn+ssh://svn.hepforge.org/hepforge/svn/fastjet/contrib/ (read-write)
is organised as follows:
# area for the overall fastjet-contrib scripts and information about
# currently used version of individual contribs. Currently only
# maintainers of the overall fjcontrib area have write acces
#
trunk/ # development version
tags/ # official releases
branches/ # branches
# areas for individual contribs. Developers each have access
# to all contribs by default (for simplicity)
contribs/ContribName/trunk # development version
contribs/ContribName/tags # official releases
contribs/ContribName/branches # branches
Within the main fastjet contrib directory, the file "contribs.svn"
file indicates which contribs (and their version) are to be extracted
by scripts/update-contribs.sh

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