Source

virtualenvwrapper / virtualenvwrapper.sh

Doug Hellmann 1df18d5 

































Doug Hellmann 2977761 
Doug Hellmann 1df18d5 

















Doug Hellmann 1c09586 


Doug Hellmann 1df18d5 

Doug Hellmann 1c09586 
Doug Hellmann 1df18d5 











Doug Hellmann 3124cfa 
Doug Hellmann 1df18d5 
Doug Hellmann 3d181d1 




Doug Hellmann 1c09586 
Doug Hellmann e356207 
Doug Hellmann 54f2258 



Doug Hellmann 1df18d5 


Doug Hellmann 3d181d1 
Doug Hellmann 1df18d5 



















































Doug Hellmann 1c09586 
Doug Hellmann 1df18d5 






Doug Hellmann 1c09586 
Doug Hellmann 1df18d5 

















Doug Hellmann 3d181d1 
Doug Hellmann 1df18d5 
Doug Hellmann 3d181d1 
Doug Hellmann 1df18d5 










































Doug Hellmann 3d181d1 
Doug Hellmann 1df18d5 









Doug Hellmann 3d181d1 
Doug Hellmann 1df18d5 

Doug Hellmann 3d181d1 
Doug Hellmann 1df18d5 






Doug Hellmann 3d181d1 
Doug Hellmann 1df18d5 

Doug Hellmann 3d181d1 
Doug Hellmann 1df18d5 













































































































































































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# -*- mode: shell-script -*-
#
# Shell functions to act as wrapper for Ian Bicking's virtualenv
# (http://pypi.python.org/pypi/virtualenv)
#
#
# Copyright Doug Hellmann, All Rights Reserved
#
# Permission to use, copy, modify, and distribute this software and its
# documentation for any purpose and without fee is hereby granted,
# provided that the above copyright notice appear in all copies and that
# both that copyright notice and this permission notice appear in
# supporting documentation, and that the name of Doug Hellmann not be used
# in advertising or publicity pertaining to distribution of the software
# without specific, written prior permission.
#
# DOUG HELLMANN DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
# INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
# EVENT SHALL DOUG HELLMANN BE LIABLE FOR ANY SPECIAL, INDIRECT OR
# CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
# USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
# OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
# PERFORMANCE OF THIS SOFTWARE.
#
#
# Project home page: http://www.doughellmann.com/projects/virtualenvwrapper/
#
#
# Setup:
#
#  1. Create a directory to hold the virtual environments.
#     (mkdir $HOME/.virtualenvs).
#  2. Add a line like "export WORKON_HOME=$HOME/.virtualenvs"
#     to your .bashrc.
#  3. Add a line like "source /path/to/this/file/virtualenvwrapper.sh"
#     to your .bashrc.
#  4. Run: source ~/.bashrc
#  5. Run: workon
#  6. A list of environments, empty, is printed.
#  7. Run: mkvirtualenv temp
#  8. Run: workon
#  9. This time, the "temp" environment is included.
# 10. Run: workon temp
# 11. The virtual environment is activated.
#

# Make sure there is a default value for WORKON_HOME.
# You can override this setting in your .bashrc.
if [ "$WORKON_HOME" = "" ]
then
    export WORKON_HOME="$HOME/.virtualenvs"
fi

# Locate the global Python where virtualenvwrapper is installed.
VIRTUALENVWRAPPER_PYTHON="$(which python)"

# Normalize the directory name in case it includes 
# relative path components.
WORKON_HOME=$("$VIRTUALENVWRAPPER_PYTHON" -c "import os; print os.path.abspath(os.path.expandvars(os.path.expanduser(\"$WORKON_HOME\")))")
export WORKON_HOME

# Verify that the WORKON_HOME directory exists
function virtualenvwrapper_verify_workon_home () {
    if [ ! -d "$WORKON_HOME" ]
    then
        [ "$1" != "-q" ] && echo "ERROR: Virtual environments directory '$WORKON_HOME' does not exist.  Create it or set WORKON_HOME to an existing directory." >&2
        return 1
    fi
    return 0
}

#HOOK_VERBOSE_OPTION="-v"

# Run the hooks
function virtualenvwrapper_run_hook () {
    # First anything that runs directly from the plugin
    "$VIRTUALENVWRAPPER_PYTHON" -m virtualenvwrapper.hook_loader $HOOK_VERBOSE_OPTION "$@"
    # Now anything that wants to run inside this shell
    "$VIRTUALENVWRAPPER_PYTHON" -m virtualenvwrapper.hook_loader $HOOK_VERBOSE_OPTION \
        --source "$@" >>$TMPDIR/$$.hook
    source $TMPDIR/$$.hook
    rm -f $TMPDIR/$$.hook
}

# Set up virtualenvwrapper properly
function virtualenvwrapper_initialize () {
    virtualenvwrapper_verify_workon_home -q || return 1
    virtualenvwrapper_run_hook "initialize"
}

virtualenvwrapper_initialize

# Verify that virtualenv is installed and visible
function virtualenvwrapper_verify_virtualenv () {
    venv=$(which virtualenv | grep -v "not found")
    if [ "$venv" = "" ]
    then
        echo "ERROR: virtualenvwrapper could not find virtualenv in your path" >&2
        return 1
    fi
    if [ ! -e "$venv" ]
    then
        echo "ERROR: Found virtualenv in path as \"$venv\" but that does not exist" >&2
        return 1
    fi
    return 0
}

# Verify that the requested environment exists
function virtualenvwrapper_verify_workon_environment () {
    typeset env_name="$1"
    if [ ! -d "$WORKON_HOME/$env_name" ]
    then
       echo "ERROR: Environment '$env_name' does not exist. Create it with 'mkvirtualenv $env_name'." >&2
       return 1
    fi
    return 0
}

# Verify that the active environment exists
function virtualenvwrapper_verify_active_environment () {
    if [ ! -n "${VIRTUAL_ENV}" ] || [ ! -d "${VIRTUAL_ENV}" ]
    then
        echo "ERROR: no virtualenv active, or active virtualenv is missing" >&2
        return 1
    fi
    return 0
}

# Create a new environment, in the WORKON_HOME.
#
# Usage: mkvirtualenv [options] ENVNAME
# (where the options are passed directly to virtualenv)
#
function mkvirtualenv () {
    eval "envname=\$$#"
    virtualenvwrapper_verify_workon_home || return 1
    virtualenvwrapper_verify_virtualenv || return 1
    (cd "$WORKON_HOME" &&
        virtualenv "$@" &&
        virtualenvwrapper_run_hook "pre_mkvirtualenv" "$envname"
        )
    # If they passed a help option or got an error from virtualenv,
    # the environment won't exist.  Use that to tell whether
    # we should switch to the environment and run the hook.
    [ ! -d "$WORKON_HOME/$envname" ] && return 0
    # Now activate the new environment
    workon "$envname"
    virtualenvwrapper_run_hook "post_mkvirtualenv"
}

# Remove an environment, in the WORKON_HOME.
function rmvirtualenv () {
    typeset env_name="$1"
    virtualenvwrapper_verify_workon_home || return 1
    if [ "$env_name" = "" ]
    then
        echo "Please specify an enviroment." >&2
        return 1
    fi
    env_dir="$WORKON_HOME/$env_name"
    if [ "$VIRTUAL_ENV" = "$env_dir" ]
    then
        echo "ERROR: You cannot remove the active environment ('$env_name')." >&2
        echo "Either switch to another environment, or run 'deactivate'." >&2
        return 1
    fi
    virtualenvwrapper_run_hook "pre_rmvirtualenv" "$env_name"
    rm -rf "$env_dir"
    virtualenvwrapper_run_hook "post_rmvirtualenv" "$env_name"
}

# List the available environments.
function virtualenvwrapper_show_workon_options () {
    virtualenvwrapper_verify_workon_home || return 1
    # NOTE: DO NOT use ls here because colorized versions spew control characters
    #       into the output list.
    # echo seems a little faster than find, even with -depth 3.
    (cd "$WORKON_HOME"; for f in */bin/activate; do echo $f; done) 2>/dev/null | sed 's|^\./||' | sed 's|/bin/activate||' | sort
#    (cd "$WORKON_HOME"; find -L . -depth 3 -path '*/bin/activate') | sed 's|^\./||' | sed 's|/bin/activate||' | sort
}

# List or change working virtual environments
#
# Usage: workon [environment_name]
#
function workon () {
	typeset env_name="$1"
	if [ "$env_name" = "" ]
    then
        virtualenvwrapper_show_workon_options
        return 1
    fi

    virtualenvwrapper_verify_workon_home || return 1
    virtualenvwrapper_verify_workon_environment $env_name || return 1
    
    activate="$WORKON_HOME/$env_name/bin/activate"
    if [ ! -f "$activate" ]
    then
        echo "ERROR: Environment '$WORKON_HOME/$env_name' does not contain an activate script." >&2
        return 1
    fi
    
    # Deactivate any current environment "destructively"
    # before switching so we use our override function,
    # if it exists.
    type deactivate >/dev/null 2>&1
    if [ $? -eq 0 ]
    then
        deactivate
    fi

    virtualenvwrapper_run_hook "pre_activate" "$env_name"
    
    source "$activate"
    
    # Save the deactivate function from virtualenv
    virtualenvwrapper_saved_deactivate=$(typeset -f deactivate)

    # Replace the deactivate() function with a wrapper.
    eval 'function deactivate () {
        # Call the local hook before the global so we can undo
        # any settings made by the local postactivate first.
        virtualenvwrapper_run_hook "pre_deactivate"
        
        env_postdeactivate_hook="$VIRTUAL_ENV/bin/postdeactivate"
        old_env=$(basename "$VIRTUAL_ENV")
        
        # Restore the original definition of deactivate
        eval "$virtualenvwrapper_saved_deactivate"

        # Instead of recursing, this calls the now restored original function.
        deactivate

        virtualenvwrapper_run_hook "post_deactivate" "$old_env"
    }'
    
    virtualenvwrapper_run_hook "post_activate"
    
	return 0
}


#
# Set up tab completion.  (Adapted from Arthur Koziel's version at 
# http://arthurkoziel.com/2008/10/11/virtualenvwrapper-bash-completion/)
# 

if [ -n "$BASH" ] ; then
    _virtualenvs ()
    {
        local cur="${COMP_WORDS[COMP_CWORD]}"
        COMPREPLY=( $(compgen -W "`virtualenvwrapper_show_workon_options`" -- ${cur}) )
    }

    _cdvirtualenv_complete ()
    {
        local cur="$2"
        # COMPREPLY=( $(compgen -d -- "${VIRTUAL_ENV}/${cur}" | sed -e "s@${VIRTUAL_ENV}/@@" ) )
        COMPREPLY=( $(cdvirtualenv && compgen -d -- "${cur}" ) )
    }
    _cdsitepackages_complete ()
    {
        local cur="$2"
        COMPREPLY=( $(cdsitepackages && compgen -d -- "${cur}" ) )
    }
    complete -o nospace -F _cdvirtualenv_complete -S/ cdvirtualenv
    complete -o nospace -F _cdsitepackages_complete -S/ cdsitepackages
    complete -o default -o nospace -F _virtualenvs workon
    complete -o default -o nospace -F _virtualenvs rmvirtualenv
    complete -o default -o nospace -F _virtualenvs cpvirtualenv
elif [ -n "$ZSH_VERSION" ] ; then
    compctl -g "`virtualenvwrapper_show_workon_options`" workon rmvirtualenv cpvirtualenv
fi

# Prints the Python version string for the current interpreter.
function virtualenvwrapper_get_python_version () {
    python -c 'import sys; print ".".join(str(p) for p in sys.version_info[:2])'
}

# Prints the path to the site-packages directory for the current environment.
function virtualenvwrapper_get_site_packages_dir () {
    echo "$VIRTUAL_ENV/lib/python`virtualenvwrapper_get_python_version`/site-packages"    
}

# Path management for packages outside of the virtual env.
# Based on a contribution from James Bennett and Jannis Leidel.
#
# add2virtualenv directory1 directory2 ...
#
# Adds the specified directories to the Python path for the
# currently-active virtualenv. This will be done by placing the
# directory names in a path file named
# "virtualenv_path_extensions.pth" inside the virtualenv's
# site-packages directory; if this file does not exist, it will be
# created first.
function add2virtualenv () {

    virtualenvwrapper_verify_workon_home || return 1
    virtualenvwrapper_verify_active_environment || return 1
    
    site_packages="`virtualenvwrapper_get_site_packages_dir`"
    
    if [ ! -d "${site_packages}" ]
    then
        echo "ERROR: currently-active virtualenv does not appear to have a site-packages directory" >&2
        return 1
    fi
    
    path_file="$site_packages/virtualenv_path_extensions.pth"

    if [ "$*" = "" ]
    then
        echo "Usage: add2virtualenv dir [dir ...]"
        if [ -f "$path_file" ]
        then
            echo
            echo "Existing paths:"
            cat "$path_file"
        fi
        return 1
    fi

    touch "$path_file"
    for pydir in "$@"
    do
        absolute_path=$(python -c "import os; print os.path.abspath(\"$pydir\")")
        if [ "$absolute_path" != "$pydir" ]
        then
            echo "Warning: Converting \"$pydir\" to \"$absolute_path\"" 1>&2
        fi
        echo "$absolute_path" >> "$path_file"
    done
    return 0
}

# Does a ``cd`` to the site-packages directory of the currently-active
# virtualenv.
function cdsitepackages () {
    virtualenvwrapper_verify_workon_home || return 1
    virtualenvwrapper_verify_active_environment || return 1
    site_packages="`virtualenvwrapper_get_site_packages_dir`"
    cd "$site_packages"/$1
}

# Does a ``cd`` to the root of the currently-active virtualenv.
function cdvirtualenv () {
    virtualenvwrapper_verify_workon_home || return 1
    virtualenvwrapper_verify_active_environment || return 1
    cd $VIRTUAL_ENV/$1
}

# Shows the content of the site-packages directory of the currently-active
# virtualenv
function lssitepackages () {
    virtualenvwrapper_verify_workon_home || return 1
    virtualenvwrapper_verify_active_environment || return 1
    site_packages="`virtualenvwrapper_get_site_packages_dir`"
    ls $@ $site_packages
    
    path_file="$site_packages/virtualenv_path_extensions.pth"
    if [ -f "$path_file" ]
    then
        echo
        echo "virtualenv_path_extensions.pth:"
        cat "$path_file"
    fi
}

# Duplicate the named virtualenv to make a new one.
function cpvirtualenv() {

    typeset env_name="$1"
    if [ "$env_name" = "" ]
    then
        virtualenvwrapper_show_workon_options
        return 1
    fi
    typeset new_env="$2"
    if [ "$new_env" = "" ]
    then
        echo "Please specify target virtualenv"
        return 1
    fi
    if echo "$WORKON_HOME" | grep -e "/$"
    then
        env_home="$WORKON_HOME"
    else
        env_home="$WORKON_HOME/"
    fi
    source_env="$env_home$env_name"
    target_env="$env_home$new_env"
    
    if [ ! -e "$source_env" ]
    then
        echo "$env_name virtualenv doesn't exist"
        return 1
    fi

    cp -r "$source_env" "$target_env"
    for script in $( ls $target_env/bin/* )
      do
        newscript="$script-new"
        sed "s|$source_env|$target_env|g" < "$script" > "$newscript"
        mv "$newscript" "$script"
        chmod a+x "$script"
      done

    virtualenv "$target_env" --relocatable
    sed "s/VIRTUAL_ENV\(.*\)$env_name/VIRTUAL_ENV\1$new_env/g" < "$source_env/bin/activate" > "$target_env/bin/activate"
    echo "Created $new_env virtualenv"
    workon "$new_env"
}
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