D16593: [ExtractorCollection] Use only best matching extractor plugin

[Stefan Brüns]

bruns created this revision.
bruns added reviewers: Frameworks, astippich.
Herald added projects: Frameworks, Baloo.
Herald added subscribers: Baloo, kde-frameworks-devel.
bruns requested review of this revision.

REVISION SUMMARY
  If there is a direct match for a mime type, only the matching plugin(s)
  is (are) returned, inheritance is not considered. Otherwise, all matches
  for all mime ancestors are returned, even if one plugin is a much better
  match than any other.
  
  Up until now, the only extractor selected by inheritance was the plain
  text extractor, so there was one fuzzy matched plugin at most. With the
  XML extractor, the XML extractor should be preferred over the plain test
  extractor.
  
  Depends on D16592 <https://phabricator.kde.org/D16592>

REPOSITORY
  R286 KFileMetaData

BRANCH
  master

REVISION DETAIL
  https://phabricator.kde.org/D16593

AFFECTED FILES
  autotests/extractorcollectiontest.cpp
  src/extractorcollection.cpp
  src/extractorcollection.h

To: bruns, #frameworks, astippich
Cc: kde-frameworks-devel, #baloo, ashaposhnikov, michaelh, astippich, spoorun, ngraham, bruns, abrahams
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