synapse-product/debian/build_virtualenv
Richard van der Hoff 2f88881c93
debian package: symlink to python-3.X (#4433)
In the debian package, make the virtualenv symlink python to /usr/bin/python3.X
rather than /usr/bin/python3. Also make sure we depend on the right python3.x
package.

This might help a bit with subtle failures when people install a package from
the wrong distro (https://github.com/matrix-org/synapse/issues/4431).
2019-01-23 11:43:04 +00:00

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#!/bin/bash
#
# runs dh_virtualenv to build the virtualenv in the build directory,
# and then runs the trial tests against the installed synapse.
set -e
export DH_VIRTUALENV_INSTALL_ROOT=/opt/venvs
# make sure that the virtualenv links to the specific version of python, by
# dereferencing the python3 symlink.
#
# Otherwise, if somebody tries to install (say) the stretch package on buster,
# they will get a confusing error about "No module named 'synapse'", because
# python won't look in the right directory. At least this way, the error will
# be a *bit* more obvious.
#
SNAKE=`readlink -e /usr/bin/python3`
# try to set the CFLAGS so any compiled C extensions are compiled with the most
# generic as possible x64 instructions, so that compiling it on a new Intel chip
# doesn't enable features not available on older ones or AMD.
#
# TODO: add similar things for non-amd64, or figure out a more generic way to
# do this.
case `dpkg-architecture -q DEB_HOST_ARCH` in
amd64)
export CFLAGS=-march=x86-64
;;
esac
# Use --builtin-venv to use the better `venv` module from CPython 3.4+ rather
# than the 2/3 compatible `virtualenv`.
dh_virtualenv \
--install-suffix "matrix-synapse" \
--builtin-venv \
--setuptools \
--python "$SNAKE" \
--upgrade-pip \
--preinstall="lxml" \
--preinstall="mock" \
--extra-pip-arg="--no-cache-dir" \
--extra-pip-arg="--compile" \
--extras="all"
# we copy the tests to a temporary directory so that we can put them on the
# PYTHONPATH without putting the uninstalled synapse on the pythonpath.
tmpdir=`mktemp -d`
trap "rm -r $tmpdir" EXIT
cp -r tests "$tmpdir"
PYTHONPATH="$tmpdir" \
debian/matrix-synapse-py3/opt/venvs/matrix-synapse/bin/python \
-B -m twisted.trial --reporter=text -j2 tests
# add a dependency on the right version of python to substvars.
PYPKG=`basename $SNAKE`
echo "synapse:pydepends=$PYPKG" >> debian/matrix-synapse-py3.substvars