Move sub-commands to libexec

Move cub-command to libexec path to prevent calling them directly,
allowing for better control of environment.

bin/saturnin-ini.skel

-#!/bin/bash
-
-. <(ffoom init)
-FFOO_INI_PATH="__SATURNIN_INI_PATH__:$SATURNIN_INI_PATH"
-
-ffoo import ini
-
-debug "\$*=$*"
-
-iniread "$@"

bin/saturnin.skel

 
 . <(ffoom init)
 export FFOO_INI_PATH="__SATURNIN_INI_PATH__:$SATURNIN_INI_PATH"
+saturnin_libexec="__SATURNIN_LIBEXEC__"
 
 ffoo import exit
 ffoo import core
 shift
 
 case $scmd in
-    czrates|dmenu|iam|ini|ip|ln|push|revert|watch|www)
-        debug -v scmd
-        debug "\$@='$@'"
-        exec saturnin-$scmd "$@" ;;
     help)  print_help; exit $FFOO_EXIT_OK ;;
-    *)  print_help; exit $FFOO_EXIT_USAGE ;;
+    *)
+        lexpath="$saturnin_libexec/saturnin-$scmd"
+        debug -v lexpath
+        debug "\$@='$@'"
+        test -x "$lexpath" && exec "$lexpath" "$@"
+        warn "invalid sub-command: $scmd"
+        print_help; exit $FFOO_EXIT_USAGE
+        ;;
 esac

libexec/saturnin-ini.skel

+#!/bin/bash
+
+. <(ffoom init)
+
+ffoo import core
+ffoo import ini
+
+debug "\$@=$@"
+
+iniread "$@"

setup/mk.sh

 
 bindir=${DESTDIR}${PREFIX}/bin
 shrdir=${DESTDIR}${PREFIX}/share/saturnin/ffoo
+lexdir=${DESTDIR}${PREFIX}/libexec/saturnin
 
 list_of_bins() {
     echo bin/saturnin
-    echo bin/saturnin-czrates
-    echo bin/saturnin-dmenu
-    echo bin/saturnin-iam
-    echo bin/saturnin-ini
-    echo bin/saturnin-ip
-    echo bin/saturnin-ln
-    echo bin/saturnin-revert
-    echo bin/saturnin-watch
-    echo bin/saturnin-www
+}
+
+list_of_lexs() {
+    echo libexec/saturnin-czrates
+    echo libexec/saturnin-dmenu
+    echo libexec/saturnin-iam
+    echo libexec/saturnin-ini
+    echo libexec/saturnin-ip
+    echo libexec/saturnin-ln
+    echo libexec/saturnin-push
+    echo libexec/saturnin-revert
+    echo libexec/saturnin-watch
+    echo libexec/saturnin-www
 }
 
 list_of_installed_bins() {
     list_of_bins | sed -e "s/bin/$(sed -e 's/\//\\\//g' <<<$bindir)/"
 }
 
+list_of_installed_lexs() {
+    list_of_lexs | sed -e "s/libexec/$(sed -e 's/\//\\\//g' <<<$lexdir)/"
+}
+
 die() {
     for l in "$@"; do echo "$l" >&2; done
     exit 9
     perl -pe "
         s|__SATURNIN_INI_PATH__|$SATURNIN_INI_PATH_GLOBAL:\\\$HOME/$SATURNIN_INI_PATH_USER|;
         s|__SATURNIN_FFOO_PATH__|$shrdir|;
+        s|__SATURNIN_LIBEXEC__|$lexdir|;
         s|__VERSION__|$(get_version)|;
     "
 }
 install() {
     mkdir -vp $bindir \
-              $shrdir
+              $shrdir \
+              $lexdir
     list_of_bins | xargs cp -vrt $bindir
     list_of_shrs | xargs cp -vrt $shrdir
+    list_of_lexs | xargs cp -vrt $lexdir
     list_of_installed_bins | xargs chmod -v 755
+    list_of_installed_lexs | xargs chmod -v 755
     test -f .autoclean && clean || :
 }
 
 uninstall() {
     list_of_installed_bins | xargs rm -vf
     rm -vrf $shrdir
+    rm -vrf $lexdir
 }
 
 case $1 in