[Tracker] C file not detected as nfo:SourceCode

[Ralph Böhme <rb netafp com>]

Hi all,

I noticed a sample C source code file not being detected as 'nfo:SourceCode':

# file /Volumes/spotlight/text/server.c 
/Volumes/spotlight/text/server.c: C source, ASCII text

# tracker-info /Volumes/spotlight/text/server.c | grep rdf:type
  'rdf:type' = 'http://www.w3.org/2000/01/rdf-schema#Resource'
  'rdf:type' = 'http://www.semanticdesktop.org/ontologies/2007/01/19/nie#DataObject'
  'rdf:type' = 'http://www.semanticdesktop.org/ontologies/2007/01/19/nie#InformationElement'
  'rdf:type' = 'http://www.semanticdesktop.org/ontologies/2007/03/22/nfo#Document'
  'rdf:type' = 'http://www.semanticdesktop.org/ontologies/2007/03/22/nfo#FileDataObject'
  'rdf:type' = 'http://www.semanticdesktop.org/ontologies/2007/03/22/nfo#TextDocument'
  'rdf:type' = 'http://www.semanticdesktop.org/ontologies/2007/03/22/nfo#PlainTextDocument'
# 

The file in question is source3/smbd/server.c from the Samba source tree. :)

# /usr/libexec/tracker-extract -v 3 -f /Volumes/spotlight/text/server.c 
Locale 'TRACKER_LOCALE_LANGUAGE' was set to 'en_US.UTF-8'
Locale 'TRACKER_LOCALE_TIME' was set to 'en_US.UTF-8'
Locale 'TRACKER_LOCALE_COLLATE' was set to 'en_US.UTF-8'
Locale 'TRACKER_LOCALE_NUMERIC' was set to 'en_US.UTF-8'
Locale 'TRACKER_LOCALE_MONETARY' was set to 'en_US.UTF-8'
Initializing Storage...
Mount monitors set up for to watch for added, removed and pre-unmounts...
No mounts found to iterate
Setting priority nice level to 19
Loading extractor rules... (/usr/share/tracker/extract-rules)
  Loaded rule '10-abw.rule'
  Loaded rule '10-dvi.rule'
  Loaded rule '10-epub.rule'
  Loaded rule '10-gif.rule'
  Loaded rule '10-html.rule'
  Loaded rule '10-ico.rule'
  Loaded rule '10-jpeg.rule'
  Loaded rule '10-mp3.rule'
  Loaded rule '10-msoffice.rule'
  Loaded rule '10-oasis.rule'
  Loaded rule '10-pdf.rule'
  Loaded rule '10-png.rule'
  Loaded rule '10-ps.rule'
  Loaded rule '10-svg.rule'
  Loaded rule '10-tiff.rule'
  Loaded rule '10-xmp.rule'
  Loaded rule '10-xps.rule'
  Loaded rule '11-iso.rule'
  Loaded rule '11-msoffice-xml.rule'
  Loaded rule '15-gstreamer-guess.rule'
  Loaded rule '15-playlist.rule'
  Loaded rule '90-gstreamer-generic.rule'
  Loaded rule '90-text-generic.rule'
Extractor rules loaded
Setting memory limitations: total is 1.0 GB, minimum is 256 MB, recommended is ~1 GB
  Virtual/Heap set to 805.3 MB (50% of total or MAXLONG)
Guessing mime type as '(null)'
Extracting...
  Using /usr/lib64/tracker-0.16/extract-modules/libextract-text.so...
  Starting to read 'file:///Volumes/spotlight/text/server.c' up to 1048576 bytes...
  Read 41858 bytes from file, 1006718 bytes remaining until configured threshold is reached
Done (2 items)

SPARQL pre-update:
--
--

SPARQL item:
--
 a nfo:PlainTextDocument ;
         nie:plainTextContent "/*\n  
...

Any idea what may be missing?

-Ralph