Presentation distro recipes-2013
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This document discusses linking software project and distribution metadata using RDF to improve traceability. It describes current issues with duplication and lack of interoperability. The approach presented extracts metadata from various projects and distributions and stores it in a Virtuoso triplestore to allow semantic queries across projects. Examples demonstrate matching packages between Debian and Apache projects based on homepage URLs. The document also outlines ongoing work to add RDF/Linked Data to additional systems like Debian and FusionForge.
![Intoduction Use case My efforts Package / Project meta-data Fin
Some issues
• Universal Free Software Project description format ; (nay)
• Universal distribution Package description format ; (nay)
• Common Semantics ? (probably)
• How to inter-link documents about the same program :
• Bug reports (upstream and in all distros)
• Launchpad
• Security advisories
• Debian’s Homepage: control field
• Are we maintaining Free Software distributions in close silos ?
• External directories (FSF, Freshmeat/Freecode, JoinUp, etc.)
• What’s usually wrong with [ XML | JSON | YAML | RFC822 ]
format ?](https://image.slidesharecdn.com/presentation-distrorecipes-2013-130404105608-phpapp02/85/Presentation-distro-recipes-2013-4-320.jpg)
![Intoduction Use case My efforts Package / Project meta-data Fin
Apache2 Debian packaging as RDF
http://packages.qa.debian.org/a/apache2.ttl
@ p r e f i x d o a p : < h t t p : // u s e f u l i n c . com/ n s / doap# .
>
@ p r e f i x a d m s s w : < h t t p : // p u r l . o r g / adms / sw /> .
< h t t p : // p . qa . d . o / a p a c h e 2#p r o j e c t>
a admssw:SoftwareProject ;
doap:name " apache2 " ;
d o a p : d e s c r i p t i o n " Debian ␣ apache2 ␣ s o u r c e ␣ packaging " ;
d o a p : h o m e p a g e < h t t p : // p a c k a g e s . d . o / s r c : a p a c h e 2> ;
d o a p : h o m e p a g e < h t t p : // p . qa . d . o / a p a c h e 2> ;
d o a p : r e l e a s e < h t t p : // p . qa . d . o / a p a c h e 2#apache2_2 . 2 . 2 2 − 1 1> ;
schema:contributor [
a foaf:OnlineAccount ;
f o a f : a c c o u n t N a m e " D e b i a n ␣ Apache ␣ M a i n t a i n e r s " ;
f o a f : a c c o u n t S e r v i c e H o m e p a g e < h t t p : // qa . d . o / d e v e l o p e r . php ? l o g i n=
d e b i a n −a p a c h e @ l i s t s . d . o>
] .
< h t t p : // p . qa . d . o / a p a c h e 2#apache2_2 . 2 . 2 2 − 1 1>
a admssw:SoftwareRelease ;
r d f s : l a b e l " apache2 ␣ 2.2.22 −11 " ;
d o a p : r e v i s i o n " 2.2.22 −11 " ;
a d m s s w : p a c k a g e < h t t p : // p . qa . d . o / a p a c h e 2#apache2_2 . 2 . 2 2 − 1 1 . d s c> ;
a d m s s w : i n c l u d e d A s s e t < h t t p : // p . qa . d . o / a p a c h e 2#u p s t r e a m s r c _ 2 . 2 . 2 2> ;
a d m s s w : i n c l u d e d A s s e t < h t t p : // p . qa . d . o / a p a c h e 2#d e b i a n s r c _ 2 . 2 . 2 2 − 1 1> .](https://image.slidesharecdn.com/presentation-distrorecipes-2013-130404105608-phpapp02/85/Presentation-distro-recipes-2013-14-320.jpg)
Presentation distro recipes-2013
- 1. Intoduction Use case My efforts Package / Project meta-data Fin Using RDF metadata for traceability among projects and distributions Olivier Berger <mailto:obergix@debian.org> Debian + Télécom SudParis Thursday 04/04/2013 Distro Recipes - Paris
- 2. Intoduction Use case My efforts Package / Project meta-data Fin Quick Introduction Short bio Olivier BERGER <mailto:olivier.berger@telecom-sudparis.eu> <mailto:obergix@debian.org> Research Engineer at TELECOM SudParis, expert on software development forges, and interoperability in Libre Software development projects. Contributor to FusionForge, Debian, etc.
- 3. Intoduction Use case My efforts Package / Project meta-data Fin How much duplication ? • Think about all the duplicate bug reports, and the number of people involved. . . usually not the ones who can help, btw • Can you navigate between all of these ? • Does google search help ?
- 4. Intoduction Use case My efforts Package / Project meta-data Fin Some issues • Universal Free Software Project description format ; (nay) • Universal distribution Package description format ; (nay) • Common Semantics ? (probably) • How to inter-link documents about the same program : • Bug reports (upstream and in all distros) • Launchpad • Security advisories • Debian’s Homepage: control field • Are we maintaining Free Software distributions in close silos ? • External directories (FSF, Freshmeat/Freecode, JoinUp, etc.) • What’s usually wrong with [ XML | JSON | YAML | RFC822 ] format ?
- 5. Intoduction Use case My efforts Package / Project meta-data Fin An approach Linked Open Development Meta-Data • Let’s try and make as much distro facts as possible available to humans + machines ? • Adopting the 5 Open Data principles using RDF for distro meta-data : make your stuff available on the web make it available as structured data non-proprietary format use URLs to identify things, so that people can point at your stuff (RDF) link your data to other people’s data to provide context (Linked RDF)
- 6. Intoduction Use case My efforts Package / Project meta-data Fin Project/program/package traceability over the FLOSS ecosystem • Assembling a graph of descriptions of packages/projects published as Linked Data (DOAP or ADMS.SW) on their forges / project portals. For instance : • For Debian, from the Debian PTS (already Linked Data proof) • For Apache, Gnome, Pypi, from DOAP files (not yet all Linked Data, but close) • . . . Add your preferred upstream . . . • Consumed by developer/maintainer/packager tools : following links between packages, (and their bugs, security alerts), all in semantic interoperable meta-data formats (RDF) !
- 7. Intoduction Use case My efforts Package / Project meta-data Fin Matching project/package descriptions Example (SPARQL query to match packages by their homepages) PREFIX doap : <h t t p : / / u s e f u l i n c . com/ n s / doap> SELECT ∗ WHERE { GRAPH <h t t p : / / p a c k a g e s . qa . d e b i a n . o r g /> { ? dp doap : homepage ? h } GRAPH <h t t p : / / p r o j e c t s . a p a c h e . o r g /> { ? ap doap : homepage ? h } } “Semantic query” : Trying to match source packages in Debian whose upstream project’s homepages match those of the Apache project’s DOAP descriptors.
- 8. Intoduction Use case My efforts Package / Project meta-data Fin Matching packages Results : 62 matching Apache projects packaged in Debian (for which maintainers did set the Homepage Control field consistently). Example (Matching upstream Apache project homepages with Debian source packages’) dp h ap ivy ant.a.o/ivy/ ant.a.o/ivy/ apr apr.a.o/ apr.a.o/ apr-util apr.a.o/ apr.a.o/ libcommons-cli-java commons.a.o/cli/ commons.a.o/cli/ libcommons-codec-java commons.a.o/codec/ commons.a.o/codec/ libcommons-collections3-java commons.a.o/collections/ commons.a.o/collections/ libcommons-collections-java commons.a.o/collections/ commons.a.o/collections/ commons-daemon commons.a.o/daemon/ commons.a.o/daemon/ libcommons-discovery-java commons.a.o/discovery/ commons.a.o/discovery/ libcommons-el-java commons.a.o/el/ commons.a.o/el/ libcommons-fileupload-java commons.a.o/fileupload/ commons.a.o/fileupload/ commons-io commons.a.o/io/ commons.a.o/io/ commons-jci commons.a.o/jci/ commons.a.o/jci/ libcommons-launcher-java commons.a.o/launcher/ commons.a.o/launcher/ ... ... ... Matching program names gives more results but is ambiguous
- 9. Intoduction Use case My efforts Package / Project meta-data Fin My current experiment mining project descriptions • Running on my laptop ATM • Currently use Python to harvest meta-data from DOAP files for : • Gnome • Apache • Pypi.python.org • Debian • (add you ?) • Down to a virtuoso Triple store : > 2.5 M triples ATM • A python app to perform queries • May be published as a public service some day
- 10. Intoduction Use case My efforts Package / Project meta-data Fin Adding RDF to the Debian Package Tracking System http ://packages.qa.debian.org/
- 11. Intoduction Use case My efforts Package / Project meta-data Fin Adding ADMS.SW for FusionForge • Adding ADMS.SW support in FusionForge • Projects • Releases • Trove categories • Expected deployment on : • Cenatic • Adullact • Debian’s Alioth
- 12. Intoduction Use case My efforts Package / Project meta-data Fin Model : Graph of RDF resources Reference Linked Data resources with canonical URI like <http://packages.qa.debian.org/PACKAGE#RESOURCE_ID> The greyed resources correspond to upstream components
- 13. Intoduction Use case My efforts Package / Project meta-data Fin Forget about RDF/XML Yes, RDF can be expressed : • as XML • as Turtle (PREFERRED) : text (close to YAML / RFC 822) • as JSON Turtle example : @prefix r d f : < h t t p : //www . w3 . o r g /1999/02/22 − r d f −s y n t a x −n s# . > @prefix f o a f : < h t t p : // x m l n s . com/ f o a f / 0 . 1 /> . @prefix o w l : < h t t p : //www . w3 . o r g / 2 0 0 2 / 0 7 / o w l# . > < h t t p : // p e o p l e . d e b i a n . o r g /~ o b e r g i x / f o a f . t t l #me> a foaf:Person ; foaf:name " O l i v i e r ␣ Berger " ; foaf:nick " obergix " ; foaf:mbox " m a i l t o : o b e r g i x @ d e b i a n . org " ; f o a f : h o m e p a g e < h t t p : // p e o p l e . d e b i a n . o r g /~ o b e r g i x /> ; o w l : s a m e A s < h t t p : //www −p u b l i c . t e l e c o m −s u d p a r i s . eu /~ b e r g e r _ o / f o a f . r d f #me> . See also RDF Primer — Turtle version
- 14. Intoduction Use case My efforts Package / Project meta-data Fin Apache2 Debian packaging as RDF http://packages.qa.debian.org/a/apache2.ttl @ p r e f i x d o a p : < h t t p : // u s e f u l i n c . com/ n s / doap# . > @ p r e f i x a d m s s w : < h t t p : // p u r l . o r g / adms / sw /> . < h t t p : // p . qa . d . o / a p a c h e 2#p r o j e c t> a admssw:SoftwareProject ; doap:name " apache2 " ; d o a p : d e s c r i p t i o n " Debian ␣ apache2 ␣ s o u r c e ␣ packaging " ; d o a p : h o m e p a g e < h t t p : // p a c k a g e s . d . o / s r c : a p a c h e 2> ; d o a p : h o m e p a g e < h t t p : // p . qa . d . o / a p a c h e 2> ; d o a p : r e l e a s e < h t t p : // p . qa . d . o / a p a c h e 2#apache2_2 . 2 . 2 2 − 1 1> ; schema:contributor [ a foaf:OnlineAccount ; f o a f : a c c o u n t N a m e " D e b i a n ␣ Apache ␣ M a i n t a i n e r s " ; f o a f : a c c o u n t S e r v i c e H o m e p a g e < h t t p : // qa . d . o / d e v e l o p e r . php ? l o g i n= d e b i a n −a p a c h e @ l i s t s . d . o> ] . < h t t p : // p . qa . d . o / a p a c h e 2#apache2_2 . 2 . 2 2 − 1 1> a admssw:SoftwareRelease ; r d f s : l a b e l " apache2 ␣ 2.2.22 −11 " ; d o a p : r e v i s i o n " 2.2.22 −11 " ; a d m s s w : p a c k a g e < h t t p : // p . qa . d . o / a p a c h e 2#apache2_2 . 2 . 2 2 − 1 1 . d s c> ; a d m s s w : i n c l u d e d A s s e t < h t t p : // p . qa . d . o / a p a c h e 2#u p s t r e a m s r c _ 2 . 2 . 2 2> ; a d m s s w : i n c l u d e d A s s e t < h t t p : // p . qa . d . o / a p a c h e 2#d e b i a n s r c _ 2 . 2 . 2 2 − 1 1> .
- 15. Intoduction Use case My efforts Package / Project meta-data Fin The ADMS.SW ontology Asset Description Metadata Schema for Software (ADMS.SW) • Pilot : EC / Interoperability Solutions for European Public Administrations (ISA) - cf. Joinup site • Exchanging project / packages / releases descriptions across development platforms and directories
- 16. Intoduction Use case My efforts Package / Project meta-data Fin Open specifications • Not too much NIH syndrom : reuses : • ADMS / RADion (generic meta-data for semantic assets indexing) • DOAP (Description of a project) • SPDX™ ( Software Package Data Exchange ®) • W3C Government Linked Data (GLD) Working Group Version 1.0 issued 2012/06/29 • RDF Validator available • RDF is extensible : ADMS.SW / DOAP core + distro-specific extensions
- 17. Intoduction Use case My efforts Package / Project meta-data Fin ADMS.SW main concepts Project (= Program), Release, Package Modeling Debian will require other complements
- 18. Intoduction Use case My efforts Package / Project meta-data Fin Related initiatives Related initiatives about package meta-data : • AppStream (Software Center, DEP11, etc.) • Umegaya (upstream meta-data, links with research publications, etc.) • DistroMatch (match package names across distributions)
- 19. Intoduction Use case My efforts Package / Project meta-data Fin Recommendations • Upstream authors : please create DOAP descriptions for your projects https ://github.com/edumbill/doap/wiki • Distributions : join the ADMS.SW bandwagon to documents package releases • Followup-to : <distributions@lists.freedesktop.org> ?
- 20. Intoduction Use case My efforts Package / Project meta-data Fin Fin More details at : • http ://wiki.debian.org/qa.debian.org/pts/RdfInterface • Linked Data descriptions of Debian source packages using ADMS.SW • Authoritative Linked Data descriptions of Debian source packages using ADMS.SW, to appear at OSS 2013 (pre-print available on demand) Contact : Micro-blogging : @oberger http://identi.ca/oberger/ Email : mailto:obergix@debian.org Blog : http://www-public.telecom-sudparis.eu/~berger_o/weblog/ Copyright 2013 Institut Mines Telecom + Olivier Berger License of this presentation : Creative Commons Share Alike (except illustrations which are under copyright of their respective owners)