Merge pull request #1293 from cenkalti/master

Look virtualenvwrapper plugin in PATH

plugins/virtualenvwrapper/virtualenvwrapper.plugin.zsh

-WRAPPER_FOUND=0
-for wrapsource in "/usr/bin/virtualenvwrapper.sh" "/usr/local/bin/virtualenvwrapper.sh" "/etc/bash_completion.d/virtualenvwrapper" ; do
-  if [[ -e $wrapsource ]] ; then
-    WRAPPER_FOUND=1
-    source $wrapsource
+wrapsource=`which virtualenvwrapper.sh`
 
-    if [[ ! $DISABLE_VENV_CD -eq 1 ]]; then
-      # Automatically activate Git projects' virtual environments based on the
-      # 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
-          PROJECT_ROOT=`git rev-parse --show-toplevel 2> /dev/null`
-          if (( $? == 0 )); then
-              # Check for virtualenv name override
-              ENV_NAME=`basename "$PROJECT_ROOT"`
-              if [[ -f "$PROJECT_ROOT/.venv" ]]; then
-                  ENV_NAME=`cat "$PROJECT_ROOT/.venv"`
-              fi
-              # Activate the environment only if it is not already active
-              if [[ "$VIRTUAL_ENV" != "$WORKON_HOME/$ENV_NAME" ]]; then
-                  if [[ -e "$WORKON_HOME/$ENV_NAME/bin/activate" ]]; then
-                      workon "$ENV_NAME" && export CD_VIRTUAL_ENV="$ENV_NAME"
-                  fi
-              fi
-          elif [ $CD_VIRTUAL_ENV ]; then
-              # We've just left the repo, deactivate the environment
-              # Note: this only happens if the virtualenv was activated automatically
-              deactivate && unset CD_VIRTUAL_ENV
-          fi
-          unset PROJECT_ROOT
-      }
+if [[ -f "$wrapsource" ]]; then
+  source $wrapsource
 
-      # New cd function that does the virtualenv magic
-      function cd {
-          builtin cd "$@" && workon_cwd
-      }
-    fi
+  if [[ ! $DISABLE_VENV_CD -eq 1 ]]; then
+    # Automatically activate Git projects' virtual environments based on the
+    # 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
+        PROJECT_ROOT=`git rev-parse --show-toplevel 2> /dev/null`
+        if (( $? == 0 )); then
+            # Check for virtualenv name override
+            ENV_NAME=`basename "$PROJECT_ROOT"`
+            if [[ -f "$PROJECT_ROOT/.venv" ]]; then
+                ENV_NAME=`cat "$PROJECT_ROOT/.venv"`
+            fi
+            # Activate the environment only if it is not already active
+            if [[ "$VIRTUAL_ENV" != "$WORKON_HOME/$ENV_NAME" ]]; then
+                if [[ -e "$WORKON_HOME/$ENV_NAME/bin/activate" ]]; then
+                    workon "$ENV_NAME" && export CD_VIRTUAL_ENV="$ENV_NAME"
+                fi
+            fi
+        elif [ $CD_VIRTUAL_ENV ]; then
+            # We've just left the repo, deactivate the environment
+            # Note: this only happens if the virtualenv was activated automatically
+            deactivate && unset CD_VIRTUAL_ENV
+        fi
+        unset PROJECT_ROOT
+    }
 
-    break
+    # New cd function that does the virtualenv magic
+    function cd {
+        builtin cd "$@" && workon_cwd
+    }
   fi
-done
-
-if [ $WRAPPER_FOUND -eq 0 ] ; then
-  print "zsh virtualenvwrapper plugin: Couldn't activate virtualenvwrapper. Please run \`pip install virtualenvwrapper\`."
+else
+  print "zsh virtualenvwrapper plugin: Cannot find virtualenvwrapper.sh. Please install with \`pip install virtualenvwrapper\`."
 fi