Delete a commit from a git branch

git-delete

#! /usr/bin/env bash
#
# Remove a single git commit from history.
#
set -eu

usage() {
    cat <<EOF
Usage: $0 <commit ID>

Remove the specified git commit, rewriting the history of the branch from
that point.

It is recommended you try this on a new branch first e.g.

  git checkout -b practice
  git-delete 6b2484a
  # then check the code you wanted gone
EOF
}

if [[ $# != 1 ]]; then
  usage
  exit 1
fi

commit=$1

set -x
git rebase --rebase-merges --onto "$commit"^ "$commit"