[server] introduce a scheduler class to run repository "looping tasks"
We just use the sched module from the standard library and introduce a tiny
Python2/3 compatibility layer (more for convenience actually). The "looping"
aspect of tasks (previously in LoopTask class) is re-implemeted as a
`schedule_periodic_task` function. This is a reasonably thin layer as compared
to LoopTask/TasksManager classes. Only the "restart" aspect of LoopTask is no
longer present as I'm not sure it's worth keeping.
The advantage of using this (in addition to eventually dropping our custom
code) is that this scheduler class provides a `run` method that blocks the
process while running tasks in its queue. So we can rely on this to have a
'scheduler' ctl command (see forthcoming patch) that would only run "looping
tasks" without having to implement the "blocking" aspect ourself.
Related to #17057223.
%if 0%{?el5}
%define python python26
%define __python /usr/bin/python2.6
%else
%define python python
%define __python /usr/bin/python
%endif
%{!?python_sitelib: %define python_sitelib %(%{__python} -c "from distutils.sysconfig import get_python_lib; print get_python_lib()")}
Name: cubicweb
Version: 3.24.5
Release: logilab.1%{?dist}
Summary: CubicWeb is a semantic web application framework
Source0: https://pypi.python.org/packages/source/c/cubicweb/cubicweb-%{version}.tar.gz
License: LGPLv2+
Group: Development/Languages/Python
Vendor: Logilab <contact@logilab.fr>
Url: https://www.cubicweb.org/project/cubicweb
BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-buildroot
BuildArch: noarch
Requires: %{python}
Requires: %{python}-six >= 1.4.0
Requires: %{python}-logilab-common >= 1.2.2
Requires: %{python}-logilab-mtconverter >= 0.8.0
Requires: %{python}-rql >= 0.34.0
Requires: %{python}-yams >= 0.44.0
Requires: %{python}-logilab-database >= 1.15.0
Requires: %{python}-passlib => 1.7.0
Requires: %{python}-lxml
Requires: %{python}-twisted-web < 16.0.0
Requires: %{python}-markdown
Requires: pytz
# the schema view uses `dot'; at least on el5, png output requires graphviz-gd
Requires: graphviz-gd
Requires: gettext
BuildRequires: %{python}
BuildRequires: %{python}-setuptools
%description
a repository of entities / relations for knowledge management
%prep
%setup -q
%if 0%{?el5}
# change the python version in shebangs
find . -name '*.py' -type f -print0 | xargs -0 sed -i '1,3s;^#!.*python.*$;#! /usr/bin/python2.6;'
%endif
%install
%{__python} setup.py --quiet install --no-compile --prefix=%{_prefix} --root="$RPM_BUILD_ROOT"
mkdir -p $RPM_BUILD_ROOT/var/log/cubicweb
%clean
rm -rf $RPM_BUILD_ROOT
%files
%defattr(-, root, root)
%dir /var/log/cubicweb
%{_prefix}/share/cubicweb/*
%{python_sitelib}/*
%{_bindir}/*