Fixed recursion. Git not needed for it to work.

Avoid infinite `cd` loops under certain conditions. Try getting `.venv` from the current directory (not necessarily always using git)

plugins/virtualenvwrapper/virtualenvwrapper.plugin.zsh

@@ -8,14 +8,22 @@ if [[ -f "$wrapsource" ]]; then
     # directory name of the project. Virtual environment name can be overridden
     # by placing a .venv file in the project root with a virtualenv name in it
     function workon_cwd {
-        # Check that this is a Git repo
+        if [ ! $WORKON_CWD ]; then
+            WORKON_CWD=1
+            # Check if this is a Git repo
             PROJECT_ROOT=`git rev-parse --show-toplevel 2> /dev/null`
-        if (( $? == 0 )); then
+            if (( $? != 0 )); then
+                PROJECT_ROOT="."
+            fi
             # Check for virtualenv name override
-            ENV_NAME=`basename "$PROJECT_ROOT"`
             if [[ -f "$PROJECT_ROOT/.venv" ]]; then
                 ENV_NAME=`cat "$PROJECT_ROOT/.venv"`
+            elif [[ "$PROJECT_ROOT" != "." ]]; then
+                ENV_NAME=`basename "$PROJECT_ROOT"`
+            else
+                ENV_NAME=""
             fi
+            if [[ "$ENV_NAME" != "" ]]; then
                 # Activate the environment only if it is not already active
                 if [[ "$VIRTUAL_ENV" != "$WORKON_HOME/$ENV_NAME" ]]; then
                     if [[ -e "$WORKON_HOME/$ENV_NAME/bin/activate" ]]; then
@@ -28,6 +36,8 @@ if [[ -f "$wrapsource" ]]; then
                 deactivate && unset CD_VIRTUAL_ENV
             fi
             unset PROJECT_ROOT
+            unset WORKON_CWD
+        fi
     }
 
     # New cd function that does the virtualenv magic