<p>An introduction to free software development, for those
interested in participating.</p>
- <p><tt><a href="free-sw-devel.html">http://www.hungry.com/~pere/.../free-sw-devel.html</a></tt></p>
+ <p><tt><a href="http://www.hungry.com/~pere/mypapers/free-sw-devel/free-sw-devel.html">http://www.hungry.com/~pere/mypapers/free-sw-devel/free-sw-devel.html</a></tt></p>
<div class="presenter">Petter Reinholdtsen
<br>pere@hungry.com
- <br>IFI/UiO, 2004-04-27</div>
+ <br>IFI/UiO, Forskningsparken rom 207 2004-04-27</div>
<h2>Who am I</h2>
<ul>
- <li>Been involved in free software development since 1992</li>
+ <li>been involved in free software development since 1992</li>
- <li>contributor to several projects (linux, glibc, kde, debian,
- mapserver, openstreetmap.org, skolelinux, etc)</li>
+ <li>programmer and system administrator</li>
+
+ <li>past and current contributor to several projects (linux,
+ glibc, kde, debian-{edu, gis, java, cdd}, mapserver,
+ openstreetmap.org, skolelinux, etc)</li>
<li>debian developer</li>
- <li>initiater and current tech coordinator in skolelinux</li>
+ <li>initiator and current tech coordinator in skolelinux</li>
+
+ <li>currently employed at USIT, UiO</li>
+
+ </ul>
+
+ <h2>Free Software - user freedom</h2>
+
+ <ul>
+
+ <li>freedom to run the program as you wish for any purpose</li>
+ <li>freedom to study and change the source code as you wish</li>
+ <li>freedom to make and redistribute copies</li>
+ <li>freedom to publish modified versions</li>
+
+ </ul>
+
+ <p><em>Richard M. Stallmann, FSF</em></p>
- <h2>What is free software</h2>
+ <h2>Getting involved and helping out</h2>
+
+ <p>So, you found a nice project on
+ <a href="http://freshmeat.net/">Freshmeat</a>, and want to help
+ improve it...</p>
+
+ <ul>
+
+ <li>get used to public review
+ <li>read the project documentation
+ <li>join the relevant mailing list, IRC channels, etc
+ <li>use mailing lists
+ <li>update the wiki
+ <li>get to know the source
+ <li>understand licensing issues
+ <li>learn to use the bug tracking system (bts)
+ <li>start with the non-coding stuff (translations, documentation)
+ <li>do not take it personally
+
+ </ul>
+
+ <h2>Reporting bugs</h2>
+
+ <p>This software suck. A lot!</p>
+
+ <ul>
- - user freedom
- - freedom to use
- - freedom to modify
- - freedom to distribute
+ <li>test if the bug exist the latest version
+
+ <li>do not report duplicate bugs, check the bts and mailing
+ lists
+
+ <li>document how to reproduce the bug, and include relevant
+ information. get output from valgrind, strace, gdb and
+ ltrace.
- <h2>Rookie checkin</h2>
+ <li>include info on possible workarounds, and patches if you
+ can.</li>
- <h2>TBPITW - The Best project in the World</h2>
+ <li>add more info if the bug is already reported
- - avoid starting from scratch, reuse an existing project if
- possible.
+ <li>use the relevant bug reporting tool, such as bug-buddy (Gnome),
+ perlbug (Perl), reportbug (Debian) and sendpr (FreeBSD) or
+ use the projects bug reporting web site (bugzilla, request-tracker,
+ gnats, etc. check the project home page)
+ <li>remember to follow up your bug report.
+
+ </ul>
+
+ <a href="http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=306147">an
+ example</a>
+
+ <h2>Submitting patches</h2>
+
+ <p>Fixing the problem is only half the work.</p>
+
+ <ul>
+ <li>if you can fix the problem you are facing, remember to let
+ the package author know about this.
+ <li>make a patch! (<tt>diff -u file.orig file.new >
+ myfix.diff</tt>)
+ <li>send the patch to the developer list, or possibly into the
+ bts (learn how the developers want it)
+
+ <li>do not forget to follow up the patch. Accept commend and
+ improve it until it is accepted by the developers.
+
+ <li>if you don't make sure the patch is accepted by the
+ developers, you will have to fix the same problem every time you
+ upgrade.
+
+ </ul>
+
<h2>Joining a free software project</h2>
+ <ul>
+
+ <li>start by checking out the bugs in the bts
+ <li>try to fix them
+
+ <li>give feedback into the bts on the reported bugs, after trying
+ to reproduce them.
+
+ <li>go through the user documentation, and submit suggestions for
+ improvement
+
+ <li>be active on the mailing lists, provide answers to the
+ questions (and use references tot he user documentation, to save
+ everybody some work)
+
+ <li>make sure the code you write is self documenting, follow the
+ code policy and include enough comments to make the purpose of the
+ code easy to understand.
+ </ul>
<h2>Starting a free software project</h2>
- - use mailing lists
- - public review (anonymous CVS, commit emails)
- - bug tracking systems
- - licenses
- - download and test other peoples the programs
- - read other peoples code
- - give well-formed bug reports, and include a patch if possible
- - let everyone work on the things that interests them
- - do not accept every change. make sure you like it first
- - write down where you want the project to go
- - web pages
- - screen shots
- - short summary
- - who to contact for more info
- - source README
- - home page URL
- - download site URL
- - short description
- - where to send bug reports and patches
- - consider sourceforge
- - tools
- - compiler
- - libraries
- - debugging utilities (gdb, ddd, dmalloc, valgrind, electric fence,
- fncchk, etc)
- - avoid duplicate work (check freshmeat)
-
-
-- bruker
-
- - hold deg til de store distribusjenene
- - hvis du finner feil
- - fortell din lokale sysadmin om feilen, og be personen teste
- nyere versjoner og/eller å skrive en feilrapport
-
-- sysadmin/feilrapportør
-
- - Hvis du finner en feil
- - søk i bug-databasen til produktet om dette er en kjent feil
- - hvis ikke, test siste utgave lokalt
- - hvis feilen fremdeles er der, og er gjenproduserbar, send en
- feilrapport
- - hvis feilen ikke er fikset, men utviklerne er klar over denne,
- send en feilrapport til!
- - sørg for at feilrapporten inneholder nødvendig informasjon for å
- gjenprodusere feilen og hvordan systemet ditt er konfigurert
- - bruk gjerne feilrapporteringsverktøy som bug-buddy (Gnome),
- perlbug (Perl), reportbug (Debian) sendpr (FreeBSD), eller
- produktets feilrapporterings-webside (bugzilla, request-tracker,
- gnats e.l. Se på prosjektets hjemmeside)
- - husk å følge opp feilrapporten din
-
-
-- patch-bidragsyter
-
- - Hvis du har muligheten til å rette feilen selv, pass på fortelle
- prosjekt-delagerene om fiksen
- - lag en patch! (patch -u fil.org fil.ny > minfiks.patch)
- - send denne til utvikler-mailinglisten, og følg med om den blir
- inkludert, eller om den krever mere fiksing.
- - ikke "glem" en patch. blir den ikke akseptert, sørg for å fikse
- patchen så den blir akseptert.
- - "glemte" patcher _vil_ skape merarbeide for deg neste gang
- programmet skal oppgraderes.
-
-
-- aktiv prosjektdeltager
-
- - fiks feilene som er rapportert i bugrapport-systemet (prosjektet
- _har_ et feilrapportsystem, ikke sant?)
- - Test og gi tilbakemelding på rapporterte feil.
- - sørg for at brukerdokumentasjonen er oppdatert, og henvis til
- denne (så slipper du ekstraarbeide)
- - sørg for at kildekoden du lager er selvdokumenterende, følger
- kode-policy og har akkurat nok kommentarer til at formålet med
- koden er lett å forstå
-
-- prosjektleder
+ <p>I got this idea for a piece of software...</p>
+
+ <ul>
+
+ <li>reuse when possible, prefer to improve existing
+ projects</li>
+
+ <li>read other peoples code, download and test other peoples
+ programs</li>
+
+ <li>understand software licenses
+
+ <li>consider sourceforge
+
+ </ul>
+
+ <p>This software suck. A lot! - Do not take it personally.</p>
+
+ <h2>Use the best free development tools available</h2>
+
+ <ul>
+ <li>compile with lots of warnings
+ <li>use existing libraries, but avoid to many dependencies
+
+ <li>learn to use debugging utilities (gdb, ddd, dmalloc,
+ valgrind, strace, ltrace, electric fence, fncchk, etc)
+ <li>learn to use profiling tools (kprof, gprof, etc)
+ <li>write automatic self testing
+
+ <li>do automatic coverage testing to check the quality of the
+ self test
+
+ </ul>
+
+ <h2>Running a successful free software project I</h2>
+
+ <ul>
+
+ <li>be responsive to comments and suggestions
+ <li>write down where you want the project to go
+ <li>do not accept every change. make sure you like it first
+
+ <li>let everyone work on the things that interests them, use the
+ carrot, as you have no whip
+ <li>set up and use a bts
+
+ </ul>
+
+ <h2>Running a successful free software project II</h2>
+
+ <ul>
+
+ <li>create web pages for your project, include screen shots, a
+ short summary and who to contact for more info
+
+ <li>remember to include a README file in the tarball. it should
+ include the home page URL, the download site URL,
+ a short description of the project and where to send bug reports
+ and patches</li>
+ <li>involve the public mailing lists in the decision making
+ <li>automate everything
+
+ <li>set up system for public review of changes (anonymous CVS,
+ commit emails)
+ <li>communicate the intention behind the choice of license
+ </ul>
+
+ <h2>As the project grows larger</h2>
+
+ <p>Leading by example is your only option.</p>
+
+ <ul>
+
+ <li>communicate the project plan to all project members
+ <li>try to reduce friction and avoid hard language
+ <li>keep track of what everyone is working on
+ </ul>
<h2>Conclusion</h2>
+ <ul>
+
+ <li>working on free software is very rewarding and challenging
+
+ <li>nobody owns you a favour, get used to it
+
+ <li>do it for your own gain, not to get rewards from others
+
+ </ul>
+
<h2>References</h2>
+ <ul>
+
+ <li>"The Practice of Programming" by Kernighan and Pike.
+
+ <li>"<a href="http://opensource.mit.edu/online_paper">Free /
+ Open Source Research Community - online papers</a>,
+ <tt>http://opensource.mit.edu/online_paper</tt></li>
+
+ </ul>
+
<h2>Thank you very much</h2>
<h3>Questions?</h3>
projects / homepage.git / blobdiff