add functions to manipulate ENABLED_SERVICES
Editing ENABLED_SERVICES directly can get tricky when
the user wants to disable something. This patch includes
two new functions for adding or removing services
safely, and a third (for completeness) to clear the
settings entirely before adding a minimal set of
services.
It also moves the logic for dealing with "negated"
services into a function so it can be tested and
applied by the new functions for manipulating
ENABLED_SERVICES.
Change-Id: I88f205f3666b86e6f0b6a94e0ec32a26c4bc6873
Signed-off-by: Doug Hellmann <doug.hellmann@dreamhost.com>
diff --git a/stack.sh b/stack.sh
index 513f8be..1ee70a6 100755
--- a/stack.sh
+++ b/stack.sh
@@ -89,15 +89,10 @@
# Sanity Check
# ============
-# We are looking for services with a - at the beginning to force
-# excluding those services. For example if you want to install all the default
-# services but not nova-volume (n-vol) you can have this set in your localrc :
-# ENABLED_SERVICES+=",-n-vol"
-for service in ${ENABLED_SERVICES//,/ }; do
- if [[ ${service} == -* ]]; then
- ENABLED_SERVICES=$(echo ${ENABLED_SERVICES}|sed -r "s/(,)?(-)?${service#-}(,)?/,/g")
- fi
-done
+# Remove services which were negated in ENABLED_SERVICES
+# using the "-" prefix (e.g., "-n-vol") instead of
+# calling disable_service().
+disable_negated_services
# Warn users who aren't on an explicitly supported distro, but allow them to
# override check and attempt installation with ``FORCE=yes ./stack``