virtualenv-auto-activate

virtualenv-auto-activate.sh

#!/bin/bash
# Based on virtualenv-auto-activate.sh
# Source: https://gist.github.com/codysoyland/2198913
#
# Installation:
#   Add this line to your .bashrc or .bash-profile:
#
#       source /path/to/virtualenv-auto-activate.sh
#
#   As a difference with the original, this script will look
#   the virtualen in a sibling folder of the project's folder:
#   For example:
#   project3
#   ├── .git
#   │   ├── HEAD
#   │   ├── config
#   │   ├── description
#   │   ├── hooks
#   │   ├── info
#   │   ├── objects
#   │   └── refs
#   virtualenvs
#       ├── project1
#       ├── project2
#       └── project3
#         ├── bin
#         ├── include
#         └── lib
#
#   The virtualenv will be activated automatically when you enter the directory,
#    and it will deactivate when you go on a upper directory from project's root dir.
contains() {
    root_path="$PROJECT_PATH"
    current_path="`pwd`"
    if echo "$current_path" | grep -q "$root_path"
    then
        :
    else
        echo Deactivating virtualenv
        deactivate
    fi
}

_virtualenv_auto_activate() {
    VIRTUALENVS_FOLDERS_NAME='virtualenvs'
    PROJECT_ROOT_PATH=$(dirname `pwd`)
    PROJECT_NAME=$(basename `pwd`)
    if [ -e ".git" ]; then
        # Check to see if already activated to avoid redundant activating
        if [ "$VIRTUAL_ENV" != "$PROJECT_ROOT_PATH/$VIRTUALENVS_FOLDERS_NAME/$PROJECT_NAME" ]; then
            echo Activating virtualenv \"$PROJECT_NAME\"...
            source $PROJECT_ROOT_PATH/$VIRTUALENVS_FOLDERS_NAME/$PROJECT_NAME/bin/activate
            export PROJECT_PATH=`echo $PROJECT_ROOT_PATH/$PROJECT_NAME`
        fi
    else
        if [ -z ${VIRTUAL_ENV+x} ]
        then
            :
        else
            contains
        fi
    fi
}

export PROMPT_COMMAND=_virtualenv_auto_activate
# precmd() { eval "$PROMPT_COMMAND" } # Uncomment to use it with ZSH

Tested on bash v4.3 and zsh v5.1

It supports auto-deactivate from revision #6