create headless_homebrew_pdf.sh for local use

headless_homebrew_pdf.sh

@@ -0,0 +1,36 @@
+#! /bin/sh
+
+set -o pipefail
+set -e
+set -u
+
+cd src
+
+echo PRINTING PDF
+echo ...which google
+which google-chrome-stable
+echo ...which miniserve
+which miniserve
+miniserve ./homebrew/ &
+pid=${!}
+until curl localhost:8080; do sleep 5; done
+google-chrome-stable \
+   --no-sandbox \
+   --headless \
+   --disable-gpu \
+   --print-to-pdf=./homebrew/homebrew.pdf \
+   --run-all-compositor-stages-before-draw \
+   --no-pdf-header-footer \
+   http://localhost:8080/homebrew.html
+get_state() {
+   cksum ./homebrew/homebrew.pdf | awk '{print $1}'
+}
+state=$(get_state)
+while true; do
+   sleep 5
+   if [ "$state" == "$(get_state)" ]; then
+      break
+   fi
+done
+kill $pid || true
+echo