dotfiles/.config/shell/utils.d/python.sh
Alexander Hess a8f8caccc0
Re-organize the shells' initialization logic
- unify ~/.config/shell/aliases.sh and ~/.config/shell/utils.sh
  into a common ~/.config/shell/init.sh
- split the contents of ~/.config/shell/aliases.sh
  into the folder ~/.config/shell/aliases.d
- split the contents of ~/.config/shell/utils.sh
  into the folder ~/.config/shell/utils.d
2022-08-14 17:38:43 +02:00

101 lines
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# This file creates a function to install and update the Python develop environments
_command_exists() {
command -v "$1" 1>/dev/null 2>&1
}
prepend-to-path () { # if not already there
if [ -d "$1" ] ; then
case :$PATH: in
*:$1:*) ;;
*) PATH=$1:$PATH ;;
esac
fi
}
# The Python versions pyenv creates (in descending order)
# Important: The first version also holds the "interactive" and "utils" environments
_py3_versions=('3.10.6' '3.9.13' '3.8.13' '3.7.13')
_py2_version='2.7.18'
# Each Python version receives its own copy of black, pipenv, and poetry
# (e.g., to avoid possible integration problems between pyenv and poetry
# Source: https://github.com/python-poetry/poetry/issues/5252#issuecomment-1055697424)
_py3_site_packages=('black' 'pipenv' 'poetry')
# The pyenv virtualenv "utils" contains some globally available tools (e.g., mackup)
_py3_utils=('leglight' 'mackup' 'youtube-dl')
# Important: this REMOVES the old ~/.pyenv installation
_install_pyenv() {
echo "(Re-)Installing pyenv"
# Ensure that pyenv is on the $PATH
# (otherwise, the pyenv installer emits warnings)
mkdir -p "$PYENV_ROOT/bin"
prepend-to-path "$PYENV_ROOT/bin"
# Remove old pyenv for clean install
rm -rf "$PYENV_ROOT" >/dev/null
# Run the official pyenv installer
curl https://pyenv.run | bash
# Make pyenv usable after this installation in the same shell session
_init_pyenv # defined in ~/.config/shell/utils.sh
}
create-or-update-python-envs() {
_command_exists pyenv || _install_pyenv
eval "$(pyenv init --path)"
# Keep a legacy Python 2.7, just in case
echo "Installing/updating Python $_py2_version"
pyenv install --skip-existing $_py2_version
pyenv rehash # needed on a first install
PYENV_VERSION=$_py2_version pip install --upgrade pip setuptools
PYENV_VERSION=$_py2_version python -c "import sys; print sys.version"
for version in ${_py3_versions[@]}; do
echo "Installing/updating Python $version"
pyenv install --skip-existing $version
pyenv rehash # needed on a first install
# Start the new environment with the latest pip and setuptools versions
PYENV_VERSION=$version pip install --upgrade pip setuptools
PYENV_VERSION=$version python -c "import sys; print(sys.version)"
# Put the specified utilities in the fresh environments or update them
for lib in ${_py3_site_packages[@]}; do
PYENV_VERSION=$version pip install --upgrade $lib
done
done
# Create a virtualenv based off the latest Python version to host global utilities
echo "Installing/updating the global Python utilities"
pyenv virtualenv $_py3_versions[1] 'utils'
pyenv rehash # needed on a first install
PYENV_VERSION='utils' pip install --upgrade pip setuptools
for util in ${_py3_utils[@]}; do
PYENV_VERSION='utils' pip install --upgrade $util
done
# Create a virtualenv based off the latest Python version for interactive usage
echo "Installing/updating the default/interactive Python environment"
pyenv virtualenv $_py3_versions[1] 'interactive'
pyenv rehash # needed on a first install
PYENV_VERSION='interactive' pip install --upgrade pip setuptools
# Install some tools to make interactive usage nicer
PYENV_VERSION='interactive' pip install --upgrade black bpython ipython
# Put all Python binaries/virtualenvs and the utilities on the $PATH
pyenv global 'interactive' $_py3_versions 'utils' $_py2_version
}