meson: print stats in check-api-docs

tools/meson-check-api-docs.sh

@@ -2,10 +2,33 @@
 
 set -eu
 
+sd_good=0
+sd_total=0
+udev_good=0
+udev_total=0
+
 for symbol in `nm -g --defined-only "$@" | grep " T " | cut -d" " -f3 | sort -u` ; do
         if test -f ${MESON_BUILD_ROOT}/man/$symbol.3 ; then
                 echo "✓ Symbol $symbol() is documented."
+                good=1
         else
                 printf "  \x1b[1;31mSymbol $symbol() lacks documentation.\x1b[0m\n"
+                good=0
         fi
+
+        case $symbol in
+                sd_*)
+                        ((sd_good+=good))
+                        ((sd_total+=1))
+                        ;;
+                udev_*)
+                        ((udev_good+=good))
+                        ((udev_total+=1))
+                        ;;
+                *)
+                        echo 'unknown symbol prefix'
+                        exit 1
+        esac
 done
+
+echo "libsystemd: $sd_good/$sd_total libudev: $udev_good/$udev_total"