# -*- mode: shell-script -*-

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#

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# Shell functions to act as wrapper for Ian Bicking's virtualenv

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# (http://pypi.python.org/pypi/virtualenv)

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#

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#

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# Copyright Doug Hellmann, All Rights Reserved

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#

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# Permission to use, copy, modify, and distribute this software and its

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# documentation for any purpose and without fee is hereby granted,

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# provided that the above copyright notice appear in all copies and that

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# both that copyright notice and this permission notice appear in

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# supporting documentation, and that the name of Doug Hellmann not be used

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# in advertising or publicity pertaining to distribution of the software

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# without specific, written prior permission.

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#

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# DOUG HELLMANN DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,

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# INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO

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# EVENT SHALL DOUG HELLMANN BE LIABLE FOR ANY SPECIAL, INDIRECT OR

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# CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF

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# USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR

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# OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR

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# PERFORMANCE OF THIS SOFTWARE.

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#

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#

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# Project home page: http://www.doughellmann.com/projects/virtualenvwrapper/

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#

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#

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# Setup:

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#

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# 1. Create a directory to hold the virtual environments.

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# (mkdir $HOME/.virtualenvs).

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# 2. Add a line like "export WORKON_HOME=$HOME/.virtualenvs"

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# to your .bashrc.

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# 3. Add a line like "source /path/to/this/file/virtualenvwrapper.sh"

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# to your .bashrc.

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# 4. Run: source ~/.bashrc

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# 5. Run: workon

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# 6. A list of environments, empty, is printed.

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# 7. Run: mkvirtualenv temp

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# 8. Run: workon

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# 9. This time, the "temp" environment is included.

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# 10. Run: workon temp

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# 11. The virtual environment is activated.

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#

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# Locate the global Python where virtualenvwrapper is installed.

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if [ "$VIRTUALENVWRAPPER_PYTHON" = "" ]

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then

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VIRTUALENVWRAPPER_PYTHON="$(command \which python)"

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fi

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# Set the name of the virtualenv app to use.

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if [ "$VIRTUALENVWRAPPER_VIRTUALENV" = "" ]

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then

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VIRTUALENVWRAPPER_VIRTUALENV="virtualenv"

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fi

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# Set the name of the virtualenv-clone app to use.

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if [ "$VIRTUALENVWRAPPER_VIRTUALENV_CLONE" = "" ]

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then

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VIRTUALENVWRAPPER_VIRTUALENV_CLONE="virtualenv-clone"

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fi

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# Define script folder depending on the platorm (Win32/Unix)

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VIRTUALENVWRAPPER_ENV_BIN_DIR="bin"

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if [ "$OS" = "Windows_NT" ] && ([ "$MSYSTEM" = "MINGW32" ] || [ "$MSYSTEM" = "MINGW64" ])

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then

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# Only assign this for msys, cygwin use standard Unix paths

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# and its own python installation

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VIRTUALENVWRAPPER_ENV_BIN_DIR="Scripts"

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fi

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# Let the user override the name of the file that holds the project

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# directory name.

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if [ "$VIRTUALENVWRAPPER_PROJECT_FILENAME" = "" ]

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then

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export VIRTUALENVWRAPPER_PROJECT_FILENAME=".project"

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fi

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# Let the user tell us they never want to cd to projects

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# automatically.

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export VIRTUALENVWRAPPER_WORKON_CD=${VIRTUALENVWRAPPER_WORKON_CD:-1}

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# Remember where we are running from.

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if [ -z "$VIRTUALENVWRAPPER_SCRIPT" ]

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then

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if [ -n "$BASH" ]

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then

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export VIRTUALENVWRAPPER_SCRIPT="$BASH_SOURCE"

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elif [ -n "$ZSH_VERSION" ]

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then

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export VIRTUALENVWRAPPER_SCRIPT="$0"

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else

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export VIRTUALENVWRAPPER_SCRIPT="${.sh.file}"

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fi

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fi

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# Portable shell scripting is hard, let's go shopping.

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#

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# People insist on aliasing commands like 'cd', either with a real

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# alias or even a shell function. Under bash and zsh, "builtin" forces

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# the use of a command that is part of the shell itself instead of an

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# alias, function, or external command, while "command" does something

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# similar but allows external commands. Under ksh "builtin" registers

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# a new command from a shared library, but "command" will pick up

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# existing builtin commands. We need to use a builtin for cd because

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# we are trying to change the state of the current shell, so we use

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# "builtin" for bash and zsh but "command" under ksh.

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function virtualenvwrapper_cd {

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if [ -n "$BASH" ]

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then

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builtin \cd "$@"

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elif [ -n "$ZSH_VERSION" ]

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then

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builtin \cd -q "$@"

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else

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command \cd "$@"

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fi

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}

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function virtualenvwrapper_expandpath {

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if [ "$1" = "" ]; then

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return 1

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else

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"$VIRTUALENVWRAPPER_PYTHON" -c "import os,sys; sys.stdout.write(os.path.normpath(os.path.expanduser(os.path.expandvars(\"$1\")))+'\n')"

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return 0

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fi

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}

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function virtualenvwrapper_absolutepath {

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if [ "$1" = "" ]; then

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return 1

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else

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"$VIRTUALENVWRAPPER_PYTHON" -c "import os,sys; sys.stdout.write(os.path.abspath(\"$1\")+'\n')"

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return 0

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fi

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}

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function virtualenvwrapper_derive_workon_home {

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typeset workon_home_dir="$WORKON_HOME"

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# Make sure there is a default value for WORKON_HOME.

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# You can override this setting in your .bashrc.

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if [ "$workon_home_dir" = "" ]

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then

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workon_home_dir="$HOME/.virtualenvs"

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fi

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# If the path is relative, prefix it with $HOME

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# (note: for compatibility)

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if echo "$workon_home_dir" | (unset GREP_OPTIONS; command \grep '^[^/~]' > /dev/null)

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then

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workon_home_dir="$HOME/$WORKON_HOME"

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fi

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# Only call on Python to fix the path if it looks like the

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# path might contain stuff to expand.

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# (it might be possible to do this in shell, but I don't know a

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# cross-shell-safe way of doing it -wolever)

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if echo "$workon_home_dir" | (unset GREP_OPTIONS; command \egrep '([\$~]|//)' >/dev/null)

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then

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# This will normalize the path by:

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# - Removing extra slashes (e.g., when TMPDIR ends in a slash)

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# - Expanding variables (e.g., $foo)

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# - Converting ~s to complete paths (e.g., ~/ to /home/brian/ and ~arthur to /home/arthur)

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workon_home_dir="$(virtualenvwrapper_expandpath "$workon_home_dir")"

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fi

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echo "$workon_home_dir"

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return 0

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}

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# Check if the WORKON_HOME directory exists,

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# create it if it does not

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# seperate from creating the files in it because this used to just error

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# and maybe other things rely on the dir existing before that happens.

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function virtualenvwrapper_verify_workon_home {

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RC=0

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if [ ! -d "$WORKON_HOME/" ]

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then

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if [ "$1" != "-q" ]

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then

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echo "NOTE: Virtual environments directory $WORKON_HOME does not exist. Creating..." 1>&2

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fi

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mkdir -p "$WORKON_HOME"

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RC=$?

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fi

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return $RC

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}

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#HOOK_VERBOSE_OPTION="-q"

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# Function to wrap mktemp so tests can replace it for error condition

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# testing.

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function virtualenvwrapper_mktemp {

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command \mktemp "$@"

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}

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# Expects 1 argument, the suffix for the new file.

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function virtualenvwrapper_tempfile {

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# Note: the 'X's must come last

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typeset suffix=${1:-hook}

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typeset file

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file="$(virtualenvwrapper_mktemp -t virtualenvwrapper-$suffix-XXXXXXXXXX)"

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touch "$file"

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if [ $? -ne 0 ] || [ -z "$file" ] || [ ! -f "$file" ]

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then

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echo "ERROR: virtualenvwrapper could not create a temporary file name." 1>&2

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return 1

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fi

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echo $file

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return 0

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}

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# Run the hooks

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function virtualenvwrapper_run_hook {

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typeset hook_script

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typeset result

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hook_script="$(virtualenvwrapper_tempfile ${1}-hook)" || return 1

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# Use a subshell to run the python interpreter with hook_loader so

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# we can change the working directory. This avoids having the

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# Python 3 interpreter decide that its "prefix" is the virtualenv

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# if we happen to be inside the virtualenv when we start.

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( \

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virtualenvwrapper_cd "$WORKON_HOME" &&

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"$VIRTUALENVWRAPPER_PYTHON" -m 'virtualenvwrapper.hook_loader' \

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$HOOK_VERBOSE_OPTION --script "$hook_script" "$@" \

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)

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result=$?

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if [ $result -eq 0 ]

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then

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if [ ! -f "$hook_script" ]

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then

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echo "ERROR: virtualenvwrapper_run_hook could not find temporary file $hook_script" 1>&2

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command \rm -f "$hook_script"

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return 2

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fi

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# cat "$hook_script"

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source "$hook_script"

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elif [ "${1}" = "initialize" ]

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then

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cat - 1>&2 <<EOF

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virtualenvwrapper.sh: There was a problem running the initialization hooks.

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If Python could not import the module virtualenvwrapper.hook_loader,

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check that virtualenvwrapper has been installed for

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VIRTUALENVWRAPPER_PYTHON=$VIRTUALENVWRAPPER_PYTHON and that PATH is

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set properly.

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EOF

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fi

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command \rm -f "$hook_script"

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return $result

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}

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# Set up tab completion. (Adapted from Arthur Koziel's version at

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# http://arthurkoziel.com/2008/10/11/virtualenvwrapper-bash-completion/)

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function virtualenvwrapper_setup_tab_completion {

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if [ -n "$BASH" ] ; then

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_virtualenvs () {

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local cur="${COMP_WORDS[COMP_CWORD]}"

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COMPREPLY=( $(compgen -W "`virtualenvwrapper_show_workon_options`" -- ${cur}) )

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}

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_cdvirtualenv_complete () {

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local cur="$2"

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COMPREPLY=( $(cdvirtualenv && compgen -d -- "${cur}" ) )

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}

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_cdsitepackages_complete () {

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local cur="$2"

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COMPREPLY=( $(cdsitepackages && compgen -d -- "${cur}" ) )

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}

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complete -o nospace -F _cdvirtualenv_complete -S/ cdvirtualenv

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complete -o nospace -F _cdsitepackages_complete -S/ cdsitepackages

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complete -o default -o nospace -F _virtualenvs workon

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complete -o default -o nospace -F _virtualenvs rmvirtualenv

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complete -o default -o nospace -F _virtualenvs cpvirtualenv

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complete -o default -o nospace -F _virtualenvs showvirtualenv

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elif [ -n "$ZSH_VERSION" ] ; then

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_virtualenvs () {

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reply=( $(virtualenvwrapper_show_workon_options) )

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}

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_cdvirtualenv_complete () {

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reply=( $(cdvirtualenv && ls -d ${1}*) )

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}

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_cdsitepackages_complete () {

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reply=( $(cdsitepackages && ls -d ${1}*) )

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}

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compctl -K _virtualenvs workon rmvirtualenv cpvirtualenv showvirtualenv

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compctl -K _cdvirtualenv_complete cdvirtualenv

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compctl -K _cdsitepackages_complete cdsitepackages

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fi

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}

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# Set up virtualenvwrapper properly

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function virtualenvwrapper_initialize {

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export WORKON_HOME="$(virtualenvwrapper_derive_workon_home)"

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virtualenvwrapper_verify_workon_home -q || return 1

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# Set the location of the hook scripts

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if [ "$VIRTUALENVWRAPPER_HOOK_DIR" = "" ]

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then

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export VIRTUALENVWRAPPER_HOOK_DIR="$WORKON_HOME"

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fi

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mkdir -p "$VIRTUALENVWRAPPER_HOOK_DIR"

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virtualenvwrapper_run_hook "initialize"

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virtualenvwrapper_setup_tab_completion

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return 0

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}

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# Verify that the passed resource is in path and exists

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function virtualenvwrapper_verify_resource {

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typeset exe_path="$(command \which "$1" | (unset GREP_OPTIONS; command \grep -v "not found"))"

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if [ "$exe_path" = "" ]

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then

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echo "ERROR: virtualenvwrapper could not find $1 in your path" >&2

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return 1

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fi

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if [ ! -e "$exe_path" ]

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then

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echo "ERROR: Found $1 in path as \"$exe_path\" but that does not exist" >&2

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return 1

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fi

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return 0

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}

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# Verify that virtualenv is installed and visible

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function virtualenvwrapper_verify_virtualenv {

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virtualenvwrapper_verify_resource $VIRTUALENVWRAPPER_VIRTUALENV

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}

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function virtualenvwrapper_verify_virtualenv_clone {

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virtualenvwrapper_verify_resource $VIRTUALENVWRAPPER_VIRTUALENV_CLONE

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}

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# Verify that the requested environment exists

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function virtualenvwrapper_verify_workon_environment {

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typeset env_name="$1"

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if [ ! -d "$WORKON_HOME/$env_name" ]

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then

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echo "ERROR: Environment '$env_name' does not exist. Create it with 'mkvirtualenv $env_name'." >&2

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return 1

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fi

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return 0

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}

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# Verify that the active environment exists

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function virtualenvwrapper_verify_active_environment {

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if [ ! -n "${VIRTUAL_ENV}" ] || [ ! -d "${VIRTUAL_ENV}" ]

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then

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echo "ERROR: no virtualenv active, or active virtualenv is missing" >&2

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return 1

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fi

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return 0

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}

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# Help text for mkvirtualenv

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function virtualenvwrapper_mkvirtualenv_help {

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echo "Usage: mkvirtualenv [-a project_path] [-i package] [-r requirements_file] [virtualenv options] env_name"

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echo

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echo " -a project_path"

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echo

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echo " Provide a full path to a project directory to associate with"

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echo " the new environment."

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echo

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echo " -i package"

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echo

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echo " Install a package after the environment is created."

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echo " This option may be repeated."

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echo

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echo " -r requirements_file"

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echo

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echo " Provide a pip requirements file to install a base set of packages"

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echo " into the new environment."

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echo;

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echo 'virtualenv help:';

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echo;

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"$VIRTUALENVWRAPPER_VIRTUALENV" $@;

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}

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# Create a new environment, in the WORKON_HOME.

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#

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# Usage: mkvirtualenv [options] ENVNAME

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# (where the options are passed directly to virtualenv)

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#

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#:help:mkvirtualenv: Create a new virtualenv in $WORKON_HOME

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function mkvirtualenv {

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typeset -a in_args

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typeset -a out_args

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typeset -i i

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typeset tst

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typeset a

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typeset envname

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typeset requirements

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typeset packages

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typeset interpreter

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typeset project

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in_args=( "$@" )

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if [ -n "$ZSH_VERSION" ]

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then

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i=1

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tst="-le"

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else

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i=0

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tst="-lt"

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fi

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while [ $i $tst $# ]

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do

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a="${in_args[$i]}"

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# echo "arg $i : $a"

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case "$a" in

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-a)

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i=$(( $i + 1 ))

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project="${in_args[$i]}"

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if [ ! -d "$project" ]

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then

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echo "Cannot associate project with $project, it is not a directory" 1>&2

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return 1

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fi

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project="$(virtualenvwrapper_absolutepath ${project})";;

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-h|--help)

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virtualenvwrapper_mkvirtualenv_help $a;

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return;;

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-i)

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i=$(( $i + 1 ));

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packages="$packages ${in_args[$i]}";;

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-p|--python*)

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if echo "$a" | grep -q "="

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then

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interpreter="$(echo "$a" | cut -f2 -d=)"

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else

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i=$(( $i + 1 ))

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interpreter="${in_args[$i]}"

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fi;;

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-r)

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i=$(( $i + 1 ));

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requirements="${in_args[$i]}";

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requirements="$(virtualenvwrapper_expandpath "$requirements")";;

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*)

[451] Fix | Delete

if [ ${#out_args} -gt 0 ]

[452] Fix | Delete

then

[453] Fix | Delete

out_args=( "${out_args[@]-}" "$a" )

[454] Fix | Delete

else

[455] Fix | Delete

out_args=( "$a" )

[456] Fix | Delete

fi;;

[457] Fix | Delete

esac

[458] Fix | Delete

i=$(( $i + 1 ))

[459] Fix | Delete

done

[460] Fix | Delete

[461] Fix | Delete

if [ ! -z $interpreter ]

[462] Fix | Delete

then

[463] Fix | Delete

out_args=( "--python=$interpreter" ${out_args[@]} )

[464] Fix | Delete

fi;

[465] Fix | Delete

[466] Fix | Delete

set -- "${out_args[@]}"

[467] Fix | Delete

[468] Fix | Delete

eval "envname=\$$#"

[469] Fix | Delete

virtualenvwrapper_verify_workon_home || return 1

[470] Fix | Delete

virtualenvwrapper_verify_virtualenv || return 1

[471] Fix | Delete

(

[472] Fix | Delete

[ -n "$ZSH_VERSION" ] && setopt SH_WORD_SPLIT

[473] Fix | Delete

virtualenvwrapper_cd "$WORKON_HOME" &&

[474] Fix | Delete

"$VIRTUALENVWRAPPER_VIRTUALENV" $VIRTUALENVWRAPPER_VIRTUALENV_ARGS "$@" &&

[475] Fix | Delete

[ -d "$WORKON_HOME/$envname" ] && \

[476] Fix | Delete

virtualenvwrapper_run_hook "pre_mkvirtualenv" "$envname"

[477] Fix | Delete

)

[478] Fix | Delete

typeset RC=$?

[479] Fix | Delete

[ $RC -ne 0 ] && return $RC

[480] Fix | Delete

[481] Fix | Delete

# If they passed a help option or got an error from virtualenv,

[482] Fix | Delete

# the environment won't exist. Use that to tell whether

[483] Fix | Delete

# we should switch to the environment and run the hook.

[484] Fix | Delete

[ ! -d "$WORKON_HOME/$envname" ] && return 0

[485] Fix | Delete

[486] Fix | Delete

# If they gave us a project directory, set it up now

[487] Fix | Delete

# so the activate hooks can find it.

[488] Fix | Delete

if [ ! -z "$project" ]

[489] Fix | Delete

then

[490] Fix | Delete

setvirtualenvproject "$WORKON_HOME/$envname" "$project"

[491] Fix | Delete

RC=$?

[492] Fix | Delete

[ $RC -ne 0 ] && return $RC

[493] Fix | Delete

fi

[494] Fix | Delete

[495] Fix | Delete

# Now activate the new environment

[496] Fix | Delete

workon "$envname"

[497] Fix | Delete

[498] Fix | Delete

if [ ! -z "$requirements" ]

[499] Fix | Delete