diskimage-builder/diskimage_builder/elements/dib-python/pre-install.d/01-dib-python
Riccardo Pittau cf7d39e4cd Allow python3 to be used in Debian
Debian default Python interpreter version is 2.7, but it's
possible to install a Python 3 interpreter from the base
repository.
With this change, if we set DIB_PYTHON_VERSION to 3, we install
the python3 package from base, with python3-libs, python3-pip and
python3-setuptools, and redefine python_path, effectively allowing
Python 3 interpreter to be used in Debian.
See a result of the job for building the ipa image here:
https://review.opendev.org/705773

Change-Id: Idabfa94c2bff6e0de6daa0866084d5db14d7dcb0
2020-02-07 18:10:19 +01:00

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Executable file

#!/bin/bash
if [ ${DIB_DEBUG_TRACE:-0} -gt 0 ]; then
set -x
fi
set -eu
set -o pipefail
if [[ ${DISTRO_NAME} =~ (centos|rhel) && ${DIB_RELEASE} == 8 ]]; then
# RHEL8 has a system python, separate from the user python. What
# a good idea, abstracting the python binary for system scripts!
# :) Use it for dib-python.
python_path=/usr/libexec/platform-python
elif [[ ${DISTRO_NAME} =~ (debian) && ${DIB_PYTHON_VERSION} == 3 ]]; then
apt-get install -y python3
python_path=$(command -v python${DIB_PYTHON_VERSION})
else
python_path=$(command -v python${DIB_PYTHON_VERSION})
fi
if [ -z "$python_path" ]; then
echo "Could not find python${DIB_PYTHON_VERSION} executable."
exit 1
fi
ln -sf $python_path /usr/local/bin/dib-python