We create a cache for SuggestionSearcher very similar to that of FT
searcher. User can specify a custom cache size using the environment
variable SUGGESTION_SEARCHER_CACHE_SIZE. It has a default value of 10%
of the number of books in the library.
We use the new cache template to implement two kind of cache.
1: The Searcher cache is more general in terms of its usage. A Searcher
can be used for multiple searches without much change to itself. We
try to retrieve the searcher and perform searches using it whenever
possible, and if not we put a searcher into the cache. User can
specify a custom cache length by manipulating the environment
variable SEARCHER_CACHE_SIZE. It's default value is 10% of all the
books available.
2: The search cache is much more restricted in terms of usage. It's main
purpose is to avoid re-searching on the searcher during page changes
to generate SearchResultSet of various ranges. User can specify a
custom cache length using the environment variable SEARCH_CACHE_SIZE
with a default value of 2;
Adds a std::map<std::string, std::string> with display names for language codes not given by libicu
Fault language codes are taken from library.kiwix.org
The `ServerTest.RandomOnNonExistentBook` unit test was replaced with a
more general one testing multiple 404 scenarios where the content of the
body is checked too.
This test was introduced with the purpose of testing the error message
in the 404 page returned by /random for a non-existent book. The actual
expected output currently present in this new unit-test is too much for
that purpose and may become a maintenance burden if more tests of that
kind are added.
Packages/build-deb CI flows failed on ubuntu-bionic and ubuntu-focal
with the following mismatch in the ServerTest.suggestions unit-test:
```
[ RUN ] ServerTest.suggestions
../test/server.cpp:715: Failure
Expected equality of these values:
r->body
Which is: ...
removeEOLWhitespaceMarkers(expectedResponse)
Which is: ...
With diff:
@@ -2,5 +2,5 @@
{
\"value\" : \"Ray (movie)\",
- \"label\" : \"Ray (<b>movie</b>...\",
+ \"label\" : \"Ray (<b>movie</b>)\",
\"kind\" : \"path\"
, \"path\" : \"A/Ray_(movie)\"
Test context:
url: /ROOT/suggest?content=zimfile&term=movie
```
For some reason (probably, a bug), the implementation of
`Xapian::MSet::snippet()` on those platforms decided that a single closing
parenthesis is more than is appropriate for inclusion in the snippet and
replaced it with a (longer) ellipsis.
Taking advantage of the necessity to work around that bug, the
ServerTest.suggestions's functional coverage was enhanced - the
problematic test point was replaced with a new one using a phrase
instead of a single term.