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#!/usr/bin/env bash
# Microsoft Azure Linux Agent
#
# Copyright 2018 Microsoft Corporation
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
#
# Installs the tools in ~/bin/scripts/* to ~/bin, as well as Pypy.
#
# It also makes Pypy the default python for the current user.
#
set -euo pipefail
PATH="$HOME/bin:$PATH"
python=$(get-agent-python)
echo "Python executable: $python"
echo "Python version: $($python --version)"
#
# Install Pypy as ~/bin/pypy3
#
# Note that bzip2/lbzip2 (used by tar to uncompress *.bz2 files) are not available by default in some distros;
# use Python to uncompress the Pypy tarball.
#
echo "Installing Pypy 3.7"
$python ~/bin/uncompress.py ~/tmp/pypy3.7-*.tar.bz2 ~/tmp/pypy3.7.tar
tar xf ~/tmp/pypy3.7.tar -C ~/bin
echo "Pypy was installed in $(ls -d ~/bin/pypy*)"
ln -s ~/bin/pypy*/bin/pypy3.7 ~/bin/pypy3
echo "Creating symbolic link to Pypy: ~/bin/pypy3"
#
# The 'distro' and 'platform' modules in Pypy have small differences with the ones in the system's Python.
# This can create problems in tests that use the get_distro() method in the Agent's 'version.py' module.
# To work around this, we copy the system's 'distro' module to Pypy.
#
# In the case of 'platform', the 'linux_distribution' method was removed on Python 3.7 so we check the
# system's module and, if the method does not exist, we also remove it from Pypy. Ubuntu 16 and 18 are
# special cases in that the 'platform' module in Pypy identifies the distro as 'debian'; in this case we
# copy the system's 'platform' module to Pypy.
#
distro_path=$($python -c '
try:
import distro
except:
exit(0)
print(distro.__file__.replace("__init__.py", "distro.py"))
exit(0)
')
if [[ "$distro_path" != "" ]]; then
echo "Copying the system's distro module to Pypy"
cp -v "$distro_path" ~/bin/pypy*/site-packages
else
echo "The distro module is not is not installing on the system; skipping."
fi
has_linux_distribution=$($python -c 'import platform; print(hasattr(platform, "linux_distribution"))')
if [[ "$has_linux_distribution" == "False" ]]; then
echo "Python does not have platform.linux_distribution; removing it from Pypy"
sed -i 's/def linux_distribution(/def __linux_distribution__(/' ~/bin/pypy*/lib-python/3/platform.py
else
echo "Python has platform.linux_distribution"
uname=$(uname -v)
if [[ "$uname" == *~18*-Ubuntu* || "$uname" == *~16*-Ubuntu* ]]; then
echo "Copying the system's platform module to Pypy"
pypy_platform=$(pypy3 -c 'import platform; print(platform.__file__)')
python_platform=$($python -c 'import platform; print(platform.__file__)')
cp -v "$python_platform" "$pypy_platform"
fi
fi
#
# Now install the test Agent as a module package in Pypy.
#
echo "Installing Agent modules to Pypy"
unzip.py ~/tmp/WALinuxAgent-*.zip ~/tmp/WALinuxAgent
unzip.py ~/tmp/WALinuxAgent/bin/WALinuxAgent-*.egg ~/tmp/WALinuxAgent/bin/WALinuxAgent.egg
mv ~/tmp/WALinuxAgent/bin/WALinuxAgent.egg/azurelinuxagent ~/bin/pypy*/site-packages
#
# Log the results of get_distro() in Pypy and Python.
#
pypy_get_distro=$(pypy3 -c 'from azurelinuxagent.common.version import get_distro; print(get_distro())')
python_get_distro=$($python -c 'from azurelinuxagent.common.version import get_distro; print(get_distro())')
echo "Pypy get_distro(): $pypy_get_distro"
echo "Python get_distro(): $python_get_distro"
#
# Create ~/bin/set-agent-env to set PATH and PYTHONPATH.
#
# We append $HOME/bin to PATH and set PYTHONPATH to $HOME/lib (bin contains the scripts used by tests, while
# lib contains the Python libraries used by tests).
#
echo "Creating ~/bin/set-agent-env to set PATH and PYTHONPATH"
echo "
if [[ \$PATH != *\"$HOME/bin\"* ]]; then
PATH=\"$HOME/bin:\$PATH:\"
fi
export PYTHONPATH=\"$HOME/lib\"
" > ~/bin/set-agent-env
chmod u+x ~/bin/set-agent-env
#
# Add ~/bin/set-agent-env to .bash_profile to simplify interactive debugging sessions
#
# Note that in some distros .bash_profile is a symbolic link to a read-only file. Make a copy in that case.
#
echo "Adding ~/bin/set-agent-env to ~/.bash_profile"
if test -e ~/.bash_profile && ls -l .bash_profile | grep '\->'; then
cp ~/.bash_profile ~/.bash_profile-bk
rm ~/.bash_profile
mv ~/.bash_profile-bk ~/.bash_profile
fi
if ! test -e ~/.bash_profile || ! grep '~/bin/set-agent-env' ~/.bash_profile > /dev/null; then
echo 'source ~/bin/set-agent-env
' >> ~/.bash_profile
fi
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