Create a screenshot of a website for each commits in a git repository

walk.sh

#!/usr/bin/env sh
# Under WTPL 2
# https://github.com/AdamN/python-webkit2png

COMMITS=$(git log --format="%H" --reverse)
OUTPUT_DIR="/tmp"

i=0
for commit in ${COMMITS}
do
  i=$(expr $i + 1)
  if [ ! -f "$OUTPUT_DIR/$i.png" ]; then
      git checkout $commit
      webkit2png.py -F javascript --aspect-ratio crop --scale 1366 1000 -o $OUTPUT_DIR/$i.png http://localhost:9292/index.html -w 1 -x 1366 1000
  fi
done

ffmpeg -qscale 5 -r 5 -b 9600 -i $OUTPUT_DIR/%d.png movie.webm