TT#62401 Special case ngcp-service files and generate them always first

These files are an intermediate data source, which are being used also
during builds of templates. We cannot make them first stage YAML sources
as they do depend on information coming from the first stage YAML
sources themselves. So we need to special-case them to make sure they
are always built first, so that the other files have up-to-date
information to use when being built.

Change-Id: I6cfd6e80823ddfaf71e2246de5518b9cb6d6a1d2

functions/main

@@ -219,6 +219,7 @@ generate_template_list() {
 
   local filelist_prepared=$(mktemp)
   local filelist_final=$(mktemp)
+  local filelist_sorted=$(mktemp)
 
   for dir in ${CONFIG_POOL} ; do
     [ -n "${dir}" ] || ( echo "${dir} doesn't exist" >&2 ; continue )
@@ -323,16 +324,23 @@ generate_template_list() {
     echo "$line" >> "${filelist_final}"
   done
 
-  # output file list, make sure we provide the file names just once
-  sort -u ${filelist_final}
+  sort -u ${filelist_final} >${filelist_sorted}
+
+  # Output file list, make sure we provide the file names just once, and
+  # special case the ngcp-service files, as they are a second stage source
+  # of data required during configuration file building, which depends at
+  # the same time on the main YAML files.
+  grep ngcp-service ${filelist_sorted} || true
+  grep -v ngcp-service ${filelist_sorted} || true
 
   if [ -n "${DEBUG:-}" ] ; then
     # send to stderr since stdout is used from outside
     log_debug "Not removing temporary filelist files since we are in debug mode:" >&2
     log_debug "  filelist_prepared = ${filelist_prepared}" >&2
     log_debug "  filelist_final    = ${filelist_final}" >&2
+    log_debug "  filelist_sorted   = ${filelist_sorted}" >&2
   else
-    rm -f "${filelist_prepared}" "${filelist_final}"
+    rm -f "${filelist_prepared}" "${filelist_final}" "${filelist_sorted}"
   fi
 
   unset filelist_prepared filelist_final