Add setup_venv.sh ; Helper script to setup virtual env for cookiecutter based project.

{{cookiecutter.repo_name}}/setup_venv.sh

@@ -0,0 +1,88 @@
+#!/bin/bash
+
+
+# NAME parameter of each environment is used to define 
+# settings module, virtualenv name and requirements file.
+
+# To setup virtualenvs 
+# 1. Create the requirements file  in requirements folder. 
+# 2. Create an evironment settings section in this file 
+# 3. Run this script from parent folder 
+#    ./scripts/setup_env.sh 
+
+
+# This script creates virtual environments and adds DB,
+# settings module and  secret key in virtualenv activation hooks
+# This script does not check for existing virtualenv  
+
+
+
+# Settings 
+PIP='pip' 
+DJ_SETTINGS='config.settings.'
+PROJ_NAME='project_name'   #<---- Change This 
+
+# Secret Key Generator ( No special chrs ; not so secure ) 
+KEYGEN=`python2.7 -c 'import random; import string; print "".join([random.SystemRandom().choice(string.digits + string.letters ) for i in range(100)])'`
+SK='KEYGEN'
+
+# Environments and Parameters  #<---- Change This  ( Add sections )
+declare -A PRODUCTION   
+PRODUCTION['NAME']='production'
+PRODUCTION['DB_URL']='postgres://lab:lab@127.0.0.1:5432/'${PROJ_NAME}'_production'
+eval PRODUCTION['SKEY']=\$${SK}
+
+declare -A LOCAL
+LOCAL['NAME']='local'
+LOCAL['DB_URL']='postgres://lab:lab@127.0.0.1:5432/'${PROJ_NAME}'_local'
+eval LOCAL['SKEY']=\$${SK}
+
+declare -A TEST
+TESTL['NAME']='test'
+TEST['DB_URL']='postgres://lab:lab@127.0.0.1:5432/'${PROJ_NAME}'_test'
+eval TEST['SKEY']=\$${SK}
+
+APP_VENVS=( 'LOCAL' 'PRODUCTION' 'TEST' )  #<------ Change This 
+
+
+# Settings VARs stay above this comment 
+# Source virtualenvwrapper for command mkvirtualenv and friends
+
+VENV_SH=`env | grep virtualenvwrapper.sh  | awk -F= '{print $2}'`
+if [ -z ${VENV_SH} ];then
+   echo 'Unable to source virtualenvwrapper.sh'
+   exit 1
+fi
+source ${VENV_SH}
+
+
+echo 'WORKON_HOME is  '${WORKON_HOME}
+
+# Iterate over the VENV Definitions 
+# Create Virtual Env and place ENV vars in hook files
+for venv in "${APP_VENVS[@]}" 
+do
+  eval DB_URL=\${${venv}['DB_URL']}
+  eval NAME=\${${venv}['NAME']}
+  eval SKEY=\${${venv}['SKEY']}
+
+  mkvirtualenv ${PROJ_NAME}_${NAME} 
+  workon ${PROJ_NAME}_${NAME}
+  ${PIP} install -r requirements/${NAME}.txt
+  
+  cat << EOF > ${WORKON_HOME}/${PROJ_NAME}_${NAME}/bin/postactivate 
+export DJANGO_SETTINGS_MODULE=${DJ_SETTINGS}${NAME}
+export DATABASE_URL='${DB_URL}'
+export SECRET_KEY='${SKEY}'
+EOF
+
+  cat << EOF > ${WORKON_HOME}/${PROJ_NAME}_${NAME}/bin/predeactivate 
+unset DJANGO_SETTINGS_MODULE
+unset SECRET_KEY
+unset DATABASE_URL
+EOF
+
+done 
+
+
+