branchcache: add a "pure topological head" fast path
In a narrow but actually quick common case, all topological heads are all on
the same branch and all open. In this case, computing the branch map is very
simple. We can quickly detect situation where this situation will not change.
So we update the V3 format to be able to express this situation and upgrade the
update code to detect we remains in that mode.
The branch cache is populated with the actual value when the branch map is
accessed, but the update_disk method can do the update without needing to
populate it.
#!/bin/bash
# This file is directly inspired by
# https://github.com/pypa/python-manylinux-demo/blob/master/travis/build-wheels.sh
set -e -x
PYTHON_TARGETS=$(ls -d /opt/python/cp27*/bin)
# Create an user for the tests
useradd hgbuilder
# Bypass uid/gid problems
cp -R /src /io && chown -R hgbuilder:hgbuilder /io
# Compile wheels for Python 2.X
for PYBIN in $PYTHON_TARGETS; do
"${PYBIN}/pip" wheel /io/ -w wheelhouse/
done
# Bundle external shared libraries into the wheels with
# auditwheel (https://github.com/pypa/auditwheel) repair.
# It also fix the ABI tag on the wheel making it pip installable.
for whl in wheelhouse/*.whl; do
auditwheel repair "$whl" -w /src/wheelhouse/
done
# Install packages and run the tests for all Python versions
cd /io/tests/
for PYBIN in $PYTHON_TARGETS; do
# Install mercurial wheel as root
"${PYBIN}/pip" install mercurial --no-index -f /src/wheelhouse
# But run tests as hgbuilder user (non-root)
su hgbuilder -c "\"${PYBIN}/python\" /io/tests/run-tests.py --with-hg=\"${PYBIN}/hg\" --blacklist=/io/contrib/packaging/linux-wheel-centos5-blacklist"
done