touchup of embarrassingly old crap

activate_proj

@@ -1,12 +1,27 @@
 #!/bin/bash
+# This file is meant to be *sourced*, not executed.
 
-USAGE="Usage: $HOME/.activate_proj <proj>"
+USAGE="Usage: source $HOME/.activate_proj <proj>"
 
 function __run_activate(){
-  if [ -n "${1}" ] ; then
+    if [[ ! -n "${1}" ]] ; then
+        echo $USAGE
+        return 1
+    fi
+
     PROJ=${1}
     local PROJDIR="${HOME}/src/${PROJ}"
-      if [[ -d "$PROJDIR" ]] ; then
+
+    if [[ ! -d "$PROJDIR" ]] ; then
+        echo "Hey! '${1}' is not a valid project."
+        echo "Pick from these:"
+        echo
+        for p in $( ls -1 -I "*.egg" "${HOME}/src" ) ; do
+            echo "    $p"
+        done
+        return 2
+    fi
+
     export PROJ
     export PROJSRC="$PROJDIR/src"
     export PROJBIN="${PROJDIR}/bin"
@@ -48,17 +63,6 @@ function __run_activate(){
         PROMPT_COMMAND=$(echo $PROMPT_COMMAND | sed "s/_VCS_BRANCH_//" )
     fi
     export PS2=""
-      else
-          echo "Hey! '${1}' is not a valid project."
-          echo "Pick from these:"
-          echo
-          for p in $( ls -1 -I "*.egg" "${HOME}/src" ) ; do
-              echo "    $p"
-          done
-      fi
-  else
-      echo ${USAGE}
-  fi
 }
 
 __run_activate "$@"