Define a new PACKAGE_TYPE for package groups.

Technically these are not native or target type packages, as we are
not building anything; they may be made up of many packages of
different types. So make sure that 'chocpkg info' shows something
distinct and different for this kind of package.

chocpkg/chocpkg

@@ -86,6 +86,8 @@ configure_for_package() {
         native)
             PACKAGE_INSTALL_DIR="$NATIVE_INSTALL_DIR"
             ;;
+        package-group)
+            ;;
         *)
             error_exit "Unknown package type $PACKAGE_TYPE"
             ;;

chocpkg/modules/package_group.sh

@@ -1,15 +1,9 @@
 
 package_group::init() {
+    PACKAGE_TYPE=package-group
     PKGGRP_PACKAGES="$*"
 }
 
-# Package group is installed if all its packages are installed.
-check_installed() {
-    for package in $PKGGRP_PACKAGES; do
-        chocpkg installed "$package"
-    done
-}
-
 do_fetch() {
     error_exit "Can't fetch a package group, only install it."
 }
@@ -43,3 +37,10 @@ cmd_dependencies() {
     done | sort | uniq
 }
 
+# Package group is installed if all its packages are installed.
+cmd_installed() {
+    for package in $PKGGRP_PACKAGES; do
+        chocpkg installed "$package"
+    done
+}
+