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191 lines
6.6 KiB
191 lines
6.6 KiB
#
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# Enables local Python package installation.
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#
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# Authors:
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# Sorin Ionescu <sorin.ionescu@gmail.com>
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# Sebastian Wiesner <lunaryorn@googlemail.com>
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# Patrick Bos <egpbos@gmail.com>
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#
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# Load manually installed pyenv into the path
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if [[ -n "$PYENV_ROOT" && -s "$PYENV_ROOT/bin/pyenv" ]]; then
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path=("$PYENV_ROOT/bin" $path)
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elif [[ -s "$HOME/.pyenv/bin/pyenv" ]]; then
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path=("$HOME/.pyenv/bin" $path)
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fi
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# Load pyenv into the current python session
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if (( $+commands[pyenv] )); then
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if [[ -z "$PYENV_ROOT" ]]; then
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export PYENV_ROOT=$(pyenv root)
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fi
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eval "$(pyenv init - --no-rehash zsh)"
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# Prepend PEP 370 per user site packages directory, which defaults to
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# ~/Library/Python on macOS and ~/.local elsewhere, to PATH. The
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# path can be overridden using PYTHONUSERBASE.
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else
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if [[ -n "$PYTHONUSERBASE" ]]; then
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path=($PYTHONUSERBASE/bin $path)
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elif [[ "$OSTYPE" == darwin* ]]; then
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path=($HOME/Library/Python/*/bin(N) $path)
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else
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# This is subject to change.
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path=($HOME/.local/bin $path)
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fi
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fi
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# Return if requirements are not found.
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if (( ! $+commands[python] && ! $+commands[pyenv] )); then
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return 1
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fi
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function _python-workon-cwd {
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# Check if this is a Git repo
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local GIT_REPO_ROOT=""
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local GIT_TOPLEVEL="$(git rev-parse --show-toplevel 2> /dev/null)"
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if [[ $? == 0 ]]; then
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GIT_REPO_ROOT="$GIT_TOPLEVEL"
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fi
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# Get absolute path, resolving symlinks
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local PROJECT_ROOT="${PWD:A}"
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while [[ "$PROJECT_ROOT" != "/" && ! -e "$PROJECT_ROOT/.venv" \
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&& ! -d "$PROJECT_ROOT/.git" && "$PROJECT_ROOT" != "$GIT_REPO_ROOT" ]]; do
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PROJECT_ROOT="${PROJECT_ROOT:h}"
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done
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if [[ "$PROJECT_ROOT" == "/" ]]; then
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PROJECT_ROOT="."
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fi
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# Check for virtualenv name override
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local ENV_NAME=""
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if [[ -f "$PROJECT_ROOT/.venv" ]]; then
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ENV_NAME="$(cat "$PROJECT_ROOT/.venv")"
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elif [[ -f "$PROJECT_ROOT/.venv/bin/activate" ]]; then
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ENV_NAME="$PROJECT_ROOT/.venv"
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elif [[ "$PROJECT_ROOT" != "." ]]; then
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ENV_NAME="${PROJECT_ROOT:t}"
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fi
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if [[ -n $CD_VIRTUAL_ENV && "$ENV_NAME" != "$CD_VIRTUAL_ENV" ]]; then
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# We've just left the repo, deactivate the environment
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# Note: this only happens if the virtualenv was activated automatically
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deactivate && unset CD_VIRTUAL_ENV
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fi
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if [[ "$ENV_NAME" != "" ]]; then
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# Activate the environment only if it is not already active
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if [[ "$VIRTUAL_ENV" != "$WORKON_HOME/$ENV_NAME" ]]; then
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if [[ -e "$WORKON_HOME/$ENV_NAME/bin/activate" ]]; then
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workon "$ENV_NAME" && export CD_VIRTUAL_ENV="$ENV_NAME"
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elif [[ -e "$ENV_NAME/bin/activate" ]]; then
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source $ENV_NAME/bin/activate && export CD_VIRTUAL_ENV="$ENV_NAME"
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fi
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fi
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fi
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}
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# Load auto workon cwd hook
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if zstyle -t ':prezto:module:python:virtualenv' auto-switch 'yes'; then
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# Auto workon when changing directory
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autoload -Uz add-zsh-hook
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add-zsh-hook chpwd _python-workon-cwd
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fi
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# Load virtualenvwrapper into the shell session, if pre-requisites are met
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# and unless explicitly requested not to
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if (( $+VIRTUALENVWRAPPER_VIRTUALENV || $+commands[virtualenv] )) && \
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zstyle -T ':prezto:module:python:virtualenv' initialize ; then
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# Set the directory where virtual environments are stored.
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export WORKON_HOME="${WORKON_HOME:-$HOME/.virtualenvs}"
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# Disable the virtualenv prompt. Note that we use the magic value used by the
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# pure prompt because there's some additional logic in that prompt which tries
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# to figure out if a user set this variable and disable the python portion of
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# that prompt based on it which is the exact opposite of what we want to do.
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export VIRTUAL_ENV_DISABLE_PROMPT=12
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# Create a sorted array of available virtualenv related 'pyenv' commands to
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# look for plugins of interest. Scanning shell '$path' isn't enough as they
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# can exist in 'pyenv' synthesized paths (e.g., '~/.pyenv/plugins') instead.
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local -a pyenv_plugins
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if (( $+commands[pyenv] )); then
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pyenv_plugins=(${(@oM)${(f)"$(pyenv commands --no-sh 2>/dev/null)"}:#virtualenv*})
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fi
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if (( $pyenv_plugins[(i)virtualenv-init] <= $#pyenv_plugins )); then
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# Enable 'virtualenv' with 'pyenv'.
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eval "$(pyenv virtualenv-init - zsh)"
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# Optionally activate 'virtualenvwrapper' plugin when available.
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if (( $pyenv_plugins[(i)virtualenvwrapper(_lazy|)] <= $#pyenv_plugins )); then
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pyenv "$pyenv_plugins[(R)virtualenvwrapper(_lazy|)]"
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fi
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else
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# Fallback to 'virtualenvwrapper' without 'pyenv' wrapper if available
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# in '$path' or in an alternative location on a Debian based system.
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#
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# If homebrew is installed and the python location wasn't overridden via
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# environment variable we fall back to python3 then python2 in that order.
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# This is needed to fix an issue with virtualenvwrapper as homebrew no
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# longer shadows the system python.
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if [[ -z "$VIRTUALENVWRAPPER_PYTHON" ]] && (( $+commands[brew] )); then
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if (( $+commands[python3] )); then
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export VIRTUALENVWRAPPER_PYTHON=$commands[python3]
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elif (( $+commands[python2] )); then
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export VIRTUALENVWRAPPER_PYTHON=$commands[python2]
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fi
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fi
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virtenv_sources=(
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${(@Ov)commands[(I)virtualenvwrapper(_lazy|).sh]}
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/usr/share/virtualenvwrapper/virtualenvwrapper(_lazy|).sh(OnN)
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)
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if (( $#virtenv_sources )); then
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source "${virtenv_sources[1]}"
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fi
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unset virtenv_sources
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fi
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unset pyenv_plugins
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fi
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# Load PIP completion.
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if (( $#commands[(i)pip(|[23])] )); then
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cache_file="${TMPDIR:-/tmp}/prezto-pip-cache.$UID.zsh"
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# Detect and use one available from among 'pip', 'pip2', 'pip3' variants
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pip_command="$commands[(i)pip(|[23])]"
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if [[ "$pip_command" -nt "$cache_file" \
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|| "${ZDOTDIR:-$HOME}/.zpreztorc" -nt "$cache_file" \
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|| ! -s "$cache_file" ]]; then
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# pip is slow; cache its output. And also support 'pip2', 'pip3' variants
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$pip_command completion --zsh \
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| sed -e "s|\(compctl -K [-_[:alnum:]]*\) pip.*|\1 pip pip2 pip3|" >! "$cache_file" 2> /dev/null
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fi
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source "$cache_file"
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unset cache_file pip_command
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fi
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# Load conda into the shell session, if requested
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zstyle -T ':prezto:module:python' conda-init
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if (( $? && $+commands[conda] )); then
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if (( $(conda ..changeps1) )); then
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echo "To make sure Conda doesn't change your prompt (should do that in the prompt module) run:\n conda config --set changeps1 false"
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# TODO:
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# We could just run this ourselves. In an exit hook
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# (add zsh-hook zshexit [(anonymous) function]) we could then set it back
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# to the way it was before we changed it. However, I'm not sure if this is
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# exception safe, so left it like this for now.
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fi
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fi
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#
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# Aliases
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#
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alias py='python'
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alias py2='python2'
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alias py3='python3'
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