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Code Issues Releases Wiki Activity

Python virtualenv auto workon cwd hook (#1300)

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* Command to activate virtualenvs on changing directory

Enables automatic activation of a virtualenv when jumping into a directory
This is done by looking in the current directory for a file or directory
named `.venv`. If it's not found in the current directory its parents will
also be examined. `.venv` can be either:
    1. A file containing the name of a virtualenv found in $WORKON_HOME
    2. A directory containing bin/activate (meaning that the directory is
       assumed to be a virtualenv.)
If $WORKON_HOME is set it is assumed that virtualenvwrapper is installed
and the `workon` command will be issued.
This commit is contained in:
Matthew Crenshaw 2017-05-30 20:26:18 -04:00 committed by Kaleb Elwert
parent 658fffb3a6
commit 08e39a587f
2 changed files with 55 additions and 0 deletions
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48
modules/python/init.zsh
View File

@ -34,6 +34,48 @@ if (( ! $+commands[python] && ! $+commands[pyenv] )); then
return 1
fi
function _python-workon-cwd {
# Check if this is a Git repo
local GIT_REPO_ROOT=""
local GIT_TOPLEVEL="$(git rev-parse --show-toplevel 2> /dev/null)"
if [[ $? == 0 ]]; then
GIT_REPO_ROOT="$GIT_TOPLEVEL"
fi
# Get absolute path, resolving symlinks
local PROJECT_ROOT="${PWD:A}"
while [[ "$PROJECT_ROOT" != "/" && ! -e "$PROJECT_ROOT/.venv" \
&& ! -d "$PROJECT_ROOT/.git" && "$PROJECT_ROOT" != "$GIT_REPO_ROOT" ]]; do
PROJECT_ROOT="${PROJECT_ROOT:h}"
done
if [[ "$PROJECT_ROOT" == "/" ]]; then
PROJECT_ROOT="."
fi
# Check for virtualenv name override
local ENV_NAME=""
if [[ -f "$PROJECT_ROOT/.venv" ]]; then
ENV_NAME="$(cat "$PROJECT_ROOT/.venv")"
elif [[ -f "$PROJECT_ROOT/.venv/bin/activate" ]];then
ENV_NAME="$PROJECT_ROOT/.venv"
elif [[ "$PROJECT_ROOT" != "." ]]; then
ENV_NAME="${PROJECT_ROOT:t}"
fi
if [[ -n $CD_VIRTUAL_ENV && "$ENV_NAME" != "$CD_VIRTUAL_ENV" ]]; then
# We've just left the repo, deactivate the environment
# Note: this only happens if the virtualenv was activated automatically
deactivate && unset CD_VIRTUAL_ENV
fi
if [[ "$ENV_NAME" != "" ]]; then
# Activate the environment only if it is not already active
if [[ "$VIRTUAL_ENV" != "$WORKON_HOME/$ENV_NAME" ]]; then
if [[ -e "$WORKON_HOME/$ENV_NAME/bin/activate" ]]; then
workon "$ENV_NAME" && export CD_VIRTUAL_ENV="$ENV_NAME"
elif [[ -e "$ENV_NAME/bin/activate" ]]; then
source $ENV_NAME/bin/activate && export CD_VIRTUAL_ENV="$ENV_NAME"
fi
fi
fi
}
# Load virtualenvwrapper into the shell session, unless requested not to
if zstyle -T ':prezto:module:python' skip-virtualenvwrapper-init; then
# Set the directory where virtual environments are stored.
@ -65,6 +107,12 @@ if (( $+commands[pip] )); then
source "$cache_file"
unset cache_file
# Load auto workon cwd hook
if zstyle -t ':prezto:module:python:virtualenv' auto-switch 'yes'; then
# Auto workon when changing directory
add-zsh-hook chpwd _python-workon-cwd
fi
fi
#

7
runcoms/zpreztorc
View File

@ -107,6 +107,13 @@ zstyle ':prezto:module:prompt' theme 'sorin'
# Auto switch the Ruby version on directory change.
# zstyle ':prezto:module:ruby:chruby' auto-switch 'yes'
#
# Python
#
# Auto switch the Python virtualenv on directory change.
# zstyle ':prezto:module:python:virtualenv' auto-switch 'yes'
#
# Screen
#