A couple quick bash scripts so I can keep virtualenvs somewhat consistent across machines. backup-requirements.sh exports requirements files for each virtualenv, names the files for the virtualenv and sends them to a date-versioned directory. install-requirements.sh loops through a directory of requirements files and checks to see if a virtualen…

backup-requirements.sh

#!/bin/bash

# grab the virtualenvwrapper settings
export WORKON_HOME=$HOME/.virtualenvs
export PIP_VIRTUALENV_BASE=$WORKON_HOME
export PIP_RESPECT_VIRTUALENV=true

# the location of your virtualenv wrapper shell script may differ
source /usr/local/share/python/virtualenvwrapper.sh

# path to requirements files
# i'm creating date-versioned directories to make sure I don't lose anything
PROJECT_ROOT="/Volumes/one_tb_hd/_programming/3scripts-dotfiles/requirements/`date +%Y-%m-%d`-files"

# make a new directory
mkdir $PROJECT_ROOT

# set list of virtualenvs to an array
array_of_virtualenvs=($(workon))

# loop through the array
for i in "${array_of_virtualenvs[@]}"
    do

        # create an output file
        OUTPUTFILE="$i.txt"

        # activate the virtualenv
        workon $i

        # output the packages to a file
        pip freeze $i > "$OUTPUTFILE"

        # move the file to a created directory
        mv "$OUTPUTFILE" $PROJECT_ROOT
    done

install-requirements.sh

#!/bin/bash

# grab the virtualenvwrapper settings
export WORKON_HOME=$HOME/.virtualenvs
export PIP_VIRTUALENV_BASE=$WORKON_HOME
export PIP_RESPECT_VIRTUALENV=true

# the location of your virtualenv wrapper shell script may differ
source /usr/local/share/python/virtualenvwrapper.sh

# make a virtual environment
makeVirtualEnv(){
    mkvirtualenv "$1"
}

# activate a virtual environment
activateVirtualEnv(){
    workon "$1"
}

# install requirements
installRequirements(){
    pip install -r "$1"
}

# path to exported requirements files
requirements_directory="/Volumes/one_tb_hd/_programming/3scripts-dotfiles/requirements"

# path to virtualenvs directory
virtualenvs="/Users/ckeller/.virtualenvs"

# move to the directory to store requirements files
cd "$requirements_directory"

# loop through each file in the directory
for file in "$requirements_directory"/*

    # then do something
    do
        virtualenv_name=$(basename ${file%.*})
        requirements_name=$(basename $file)

        # path where new projects will be created
        PROJECT_PATH="$virtualenvs/$virtualenv_name"

        if [ -d "$PROJECT_PATH" ];
        then
            echo "$virtualenv_name already exists"

            # activate the virtualenv
            echo "Activating $virtualenv_name to install missing packages"
            activateVirtualEnv $virtualenv_name

            # install the requirements
            echo "Installing missing packages from $requirements_name"
            installRequirements $requirements_name

            # show what was installed
            echo "Here's what is installed in $virtualenv_name"
            pip freeze

        # if the environment doesn't exist
        else
            echo "$virtualenv_name doesn't exist"

            # make the virtualenv
            echo "Making $virtualenv_name virtualenv"
            makeVirtualEnv $virtualenv_name

            # activate the virtualenv
            echo "Activating $virtualenv_name to install missing packages"
            activateVirtualEnv $virtualenv_name

            # install the requirements
            echo "Installing missing packages from $requirements_name"
            installRequirements $requirements_name

            # show what was installed
            echo "Here's what is installed in $virtualenv_name"
            pip freeze

        fi
    done