Replay git commits

replay.sh

#!/bin/sh

# Remember current branch
CURRENT_BRANCH=$(git rev-parse --abbrev-ref HEAD)

# Temp branch used for replaying history
TEMP_BRANCH=__tmp-replay-git-commits

# Checkout temp branch
git checkout -b $TEMP_BRANCH

# List commits in chronological order
# Default to HEAD if missing argument
COMMITS=$(git rev-list ${1:-HEAD}..${2:-HEAD} | tac)
for COMMIT in $COMMITS
do
  # Move head to old commit
  git checkout $COMMIT

  # Sleep before moving to newer
  # Default to 1 second
  sleep ${3:-1}
done

# Back to current branch
git checkout $CURRENT_BRANCH

# Cleanup temp branch
git branch -D $TEMP_BRANCH

An example of how the script can be used is to re-apply all commits in chronological order while recording the screen.