[server] use a LifoQueue in _CnxSetPool In postgresql, some cache is attached to the connection. Using a LifoQueue (last-in, first-out) makes a few connections to get the most load which give best performance.

[server] extract creating a new cnxset in a _new_cnxset() helper So we can move logic specific to _CnxSetPool here.

[server] avoid a possible race condition on _CnxSetPool.close() The pool could become empty between time to check and time to use.

[server] extract "no pooler" CnxSet class to a _BaseCnxSet class So we get rid of "if self._queue is None" in each method of _CnxSetPool Also add helper get_cnxset(source, size) to instantiate the correct pooler class.

[server] prevent returning closed cursor to the database pool In since c8c6ad8 init_repository use repo.internal_cnx() instead of repo.system_source.get_connection() so it use the pool and we should not close cursors from the pool before returning it back. Otherwise we may have "connection already closed" error. This bug only trigger when connection-pool-size = 1. Since we are moving to use a dynamic pooler we need to get this fixed. This does not occur with sqlite since the connection wrapper instantiate new cursor everytime, but this occur with other databases.

[rql] Store selected variables for RQL select queries in ResultSet (#17218476) By storing the name of the selected variables for RQL select queries in the ResultSet (within the "variables" attribute), the information can be passed down to specific protocols, e.g. rqlio that may wish to pass is down further to clients. In turn, clients can then choose to present the results of RQL select queries as symbolic bindings using the names used in the query's projection, instead of ordinal arrays.

[debugtoolbar] Make SQL and RQL tables sortable It's usefull to sort query by duration for instance.

[debugtoolbar] Do not render CW controller panel when no controller got collected This can happen on pure pyramid applications for instance.

[doc] Fix bugs in code examples

[doc] Remove zone cube which causes to crash on install The zone cube is not compatible with python3.

[doc] Precise which component to modify in gallery tutorial

[doc] Fix example about Community view customization

[doc] Add command pip install of new cube

[doc] update cubicweb version

[doc, blog tutorial] Remove cubicweb-dev from pip dependencies This pip package does not exist

[doc] Add requirement for gettext and graphviz When running the tutorial from scratch, I had errors because these two packages were not installed.

Added tag 3.27.3, debian/3.27.3-1 for changeset 85284f028266

[pkg] version 3.27.3

[pkg] require python >= 3.6 in debian packaging

[pkg] merge 3.27 Require python >= 3.6 since recent typing notations require >= 3.6

[pkg] add python3 only pypi specifiers This is only for pypi statistics purposes. Also add 'Programming Language :: Python', looks obvious but seems to be sane to have this as well.

[pkg] the wheel is no longer universal Since we're only py3 compatible. In practice this changes nothing since we don't upload cubicweb wheels to pypi.

[pkg] require python >= 3.4 This avoid pip pulling a version that does not run on python2 when using a python2 environment. Since we already released some 3.27 releases in pypi, I think we should release 3.27.3 and remove releases 3.27.2, 3.27.1 and 3.27.0 from pypi.

merge public heads

[web.views] add Link alternate in HTTP response header in HTML view Team: famarger, schabot, nchauvat, fferry, ethieblin

[pyramid] add routes /{eid} and /{etype}/{eid} to return RDF when rdf mimetype in Accept HTTP headers * simplify pyramid/resources.py by making the classmethod that returns a closure a simple function and removing the EntityResource and ETYpeResource classes that are barely used * replace predicate MatchIsETypePredicate with MatchIsETypeAndEIDPredicate Team: famarger, schabot, nchauvat, fferry, ethieblin

[entities] simplify rdf generation and add a generic rdf adapter Team: famarger, schabot, nchauvat, fferry, ethieblin

Added tag 3.26.17, debian/3.26.17-1 for changeset 5c6d242069b6

[pkg] version 3.26.17

[fix, calendar] Ensure that the buffer is a string 'unicode' is not defined in python3

Added tag 3.26.16, debian/3.26.16-1 for changeset fb6aecd654a3

[pkg] version 3.26.16