libredbdiff: Fix configuration

1. the config at the top referenced libredbdiff.conf:statedir; which hadn't
   been loaded yet
2. the 'compare' arg parser referenced libredbdiff.conf:repos; which hadn't
   been loaded yet

1 files changed, 27 insertions, 18 deletions

diff --git a/src/abslibre-tools/libredbdiff b/src/abslibre-tools/libredbdiff
index 3fc505c..1527633 100755
--- a/src/abslibre-tools/libredbdiff
+++ b/src/abslibre-tools/libredbdiff
@@ -27,15 +27,6 @@ setup_traps
 declare -r name="Libredbdiff"
 declare -r cmd="${0##*/}"
 
-declare -r conffile_prbl="$statedir/pacman.conf.parabola"
-declare -r conffile_arch="$statedir/pacman.conf.archlinux"
-
-declare -r dbpath_prbl="$statedir/pacman.parabola"
-declare -r dbpath_arch="$statedir/pacman.archlinux"
-
-declare -r mirrorlist_prbl="$statedir/mirrorlist.parabola"
-declare -r mirrorlist_arch="$statedir/mirrorlist.archlinux"
-
 declare -r field_pkgname_prbl=30
 declare -r field_pkgname_arch=30
 declare -r field_pkgname_total="$((field_pkgname_prbl + field_pkgname_arch))"
@@ -43,6 +34,17 @@ declare -r field_pkgname_total="$((field_pkgname_prbl + field_pkgname_arch))"
 declare -r printf_format="%s  %-${field_pkgname_prbl}s%-${field_pkgname_arch}s   %s | %s\n"
 declare -r printf_format_noarch="%s  %-${field_pkgname_total}s   %s\n"
 
+init_conf() {
+	declare -rg conffile_prbl="$statedir/pacman.conf.parabola"
+	declare -rg conffile_arch="$statedir/pacman.conf.archlinux"
+
+	declare -rg dbpath_prbl="$statedir/pacman.parabola"
+	declare -rg dbpath_arch="$statedir/pacman.archlinux"
+
+	declare -rg mirrorlist_prbl="$statedir/mirrorlist.parabola"
+	declare -rg mirrorlist_arch="$statedir/mirrorlist.archlinux"
+}
+
 enablerepo() {
 	local repo="$1"
 	local conffile_arg="$2"
@@ -220,6 +222,17 @@ main() {
 				usage >&2
 				exit $EXIT_INVALIDARGUMENT
 			fi
+
+			if [[ $EUID != 0 ]]; then
+
+				error "Must run as root to initialize or update %s databases." "$cmd"
+				usage >&2
+				exit $EXIT_NOPERMISSION
+			fi
+
+			load_conf libredbdiff.conf statedir mirror_prbl mirror_arch || exit
+			init_conf
+
 			main_update
 			;;
 		compare)
@@ -228,24 +241,22 @@ main() {
 				usage >&2
 				exit $EXIT_INVALIDARGUMENT
 			fi
+
+			load_conf libredbdiff.conf statedir repos || exit
+			init_conf
+
 			if [[ $# = 1 ]]; then
 				if ! in_array "$1" "${repos[@]}"; then
 					die "The specified Parabola repo \"%s\" cannot be compared.  It's not in the list of repos in the configuration variable \"repos\"." "$1"
 				fi
 			fi
+
 			main_compare "$@"
 			;;
 	esac
 }
 
 main_update() {
-	if [[ $EUID != 0 ]]; then
-		error "Must run as root to initialize or update %s databases." "$cmd"
-		usage >&2
-		exit $EXIT_NOPERMISSION
-	fi
-	load_conf libredbdiff.conf statedir mirror_prbl mirror_arch || exit
-
 	createdir "$statedir"
 	{
 		msg "Generating %s %q" Parabola pacman.conf
@@ -296,8 +307,6 @@ main_update() {
 }
 
 main_compare() {
-	load_conf libredbdiff.conf statedir repos || exit
-
 	if ! [[ -f "$conffile_prbl" && \
 	        -f "$conffile_arch" && \
 	        -f "$dbpath_prbl/sync/libre.db" && \