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Relevance sorting heuristics for search

Marco Martin requested to merge work/mart/relevanceSearch into master

Search also in appstreamId(): weird but only way to make gimp come up when searching for gimp, there is also appstream searchTokens but they are abused and lead to a lot of garbage results.

Do a new sortRole default when there is a search. This relevance role combines:

  • rating
  • a measure based on The Levenshtein distance between search string and app name
  • an exact match with the name or a sub-word of the name

It makes sortings much more "expected" than any of the other sortings.

BUG: 399502 BUG: 475844 BUG: 469026 FIXED-IN: 6.0


Edited by Nate Graham

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