gerboweb: Modularize deployment playbooks a bit

vector.sh.j2

@@ -0,0 +1,18 @@
+#!/bin/sh
+
+[ $# != 2 ] && exit 1
+ID=$1
+egrep -x -q '^[-0-9A-Za-z]{36}$'<<<"$ID" || exit 2
+LAYER=$2
+egrep -x -q '^(top|bottom)$'<<<"$LAYER" || exit 2
+
+systemd-nspawn \
+    -D {{gerboweb_root}} \
+    -x --bind={{gerboweb_cache}}/upload/$ID:/mnt \
+    /bin/sh -c "set -euo pipefail
+cd /tmp
+unzip -j -d gerber_in /mnt/gerber.zip
+gerbolyze vectorize $LAYER gerber_in gerber /mnt/overlay.png
+rm -f /mnt/gerber_out.zip
+zip -r /mnt/gerber_out.zip gerber"
+