gerboweb: Initial commit

The functionality is there, no design yet

render.sh

@@ -0,0 +1,20 @@
+#!/bin/sh
+
+[ $# != 1 ] && exit 1
+ID=$1
+egrep -x -q '^[-0-9A-Za-z]{36}$'<<<"$ID" || exit 2
+
+systemd-nspawn \
+    -D /var/cache/gerbolyze_container \
+    -x --bind=/var/cache/gerboweb/upload/$ID:/mnt \
+    /bin/sh -c "set -euo pipefail
+unzip -j -d /tmp/gerber /mnt/gerber.zip
+rm -f /mnt/render_top.png /mnt/render_bottom.png /mnt/render_top.small.png /mnt/render_bottom.small.png
+date; echo 'Rendering bottom layer'
+gerbolyze render top /tmp/gerber /mnt/render_top.png
+date; echo 'Scaling down'
+convert /mnt/render_top.png -resize 500x500 /mnt/render_top.small.png
+date; echo 'Rendering top layer'
+gerbolyze render bottom /tmp/gerber /mnt/render_bottom.png
+date; echo 'Scaling down'
+convert /mnt/render_bottom.png -resize 500x500 /mnt/render_bottom.small.png"