support absent/present in __package_rubygem

Signed-off-by: Nico Schottelius <nico@brief.schottelius.org>

conf/type/__package_pkg_openbsd/gencode-remote

@@ -29,7 +29,6 @@
 os_version="$(cat "$__global/explorer/os_version")"
 machine="$(cat "$__global/explorer/machine")"
 
-
 if [ -f "$__object/parameter/flavor" ]; then
 	flavor="$(cat "$__object/parameter/flavor")"
 fi

conf/type/__package_rubygem/gencode-remote

@@ -21,31 +21,42 @@
 # Manage Rubygem packages
 #
 
-
 if [ -f "$__object/parameter/name" ]; then
-   name="$(cat "$__object/parameter/name")"
+    name="$(cat "$__object/parameter/name")"
 else
-   name="$__object_id"
+    name="$__object_id"
 fi
 
-state="$(cat "$__object/parameter/state")"
-is_installed="$(grep "true" "$__object/explorer/pkg_status" || true)"
-
-case "$state" in
-   installed)
-      # Install only if non-existent
-      if [ -z "$is_installed" ]; then
-         echo gem install \"$name\" --no-ri --no-rdoc
-      fi
-   ;;
-   removed)
-      # Remove only if existent
-      if [ -n "$is_installed" ]; then
-         echo gem uninstall \"$name\"
-      fi
-   ;;
-   *)
-      echo "Unknown state: $state" >&2
-      exit 1
-   ;;
+state_should="$(cat "$__object/parameter/state")"
+# Correct pre 2.1 naming - FIXME in 2.1
+case "$state_should" in
+    installed)
+        echo "WARNING: $state_should is deprecated and will be removed in cdist 2.1. Please change to present/absent." >&2
+        state_should="present"
+    ;;
+    removed)
+        echo "WARNING: $state_should is deprecated and will be removed in cdist 2.1. Please change to present/absent." >&2
+        state_should="absent"
+    ;;
+esac
+
+if grep -q true "$__object/explorer/pkg_status"; then
+    state_is="present"
+else
+    state_is="absent"
+fi
+
+[ "$state_is" = "$state_should ] && exit 0
+
+case "$state_should" in
+    present)
+        echo gem install \"$name\" --no-ri --no-rdoc
+    ;;
+    absent)
+        echo gem uninstall \"$name\"
+    ;;
+    *)
+        echo "Unknown state: $state" >&2
+        exit 1
+    ;;
 esac