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#!/usr/bin/env bash
# This command is specifically for pip-installing a previously
# built wheel.
# Default arguments for all packages installed with `pip install`
# --ignore-installed : Force pip to re-install package even if it thinks it's
# already installed (for which it sometimes gets false
# positives for partially-installed packages).
# --verbose : Display the output when running setup.py.
# --no-deps : Don't install runtime dependencies from PyPI.
# --no-index : Don't look at the package index.
# This also disables pip's version self-check.
# --isolated : Don't read configuration files such as
# ~/.pydistutils.cfg
pip_install_flags="--ignore-installed --verbose --no-deps --no-index --isolated"
# Note: We need to take care to specify the full path to Sage's Python here
# to emphasize that this command should use it, and not the system Python;
# see https://trac.sagemath.org/ticket/18438
# But now we delegate this to sage-python23.
PYTHON=sage-python23
# The PIP variable is only used to determine the name of the lock file.
PIP=pip3
# We should avoid running pip while installing a package because that
# is prone to race conditions. Therefore, we use a lockfile while
# running pip. This is implemented in the Python script sage-flock
LOCK="$SAGE_LOCAL/var/lock/$PIP.lock"
# Finally actually do the installation (the "SHARED" tells pip2/3-lock
# to apply a shared lock)
sage-flock -s $LOCK $PYTHON -m pip install $pip_install_flags "$@"
if [ $? -ne 0 ]; then
echo >&2 "Error: installing with $PIP failed"
exit 3
fi
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