Run `curl -sSL "https://gist.githubusercontent.com/jmatsu/3ac8a09f6cd1a4aac747f115584a529d/raw/dec6d729f481274d7fcc04ed697e87f7f74cf7ac/install.bash" | bash` to prevent master push

install.bash

die() {
  echo "$*" >&2
  exit 1
}

warn() {
  echo "$*" >&2
}

if [[ ! -d ".git/hooks" ]]; then
  warn "could not find .git/hooks directory from the current directory."
  cd $(git rev-parse --show-toplevel)
  if (($? != 0)); then
    die "this may not be a git repository."
  fi
  warn "moved to $(pwd)"
fi

cd .git/hooks

if [[ -f "pre-push" ]]; then
  warn "pre-push already exists."
  readonly tmp_suffix=$(basename $(mktemp))
  mv pre-push "pre-push.${tmp_suffix}"
  warn "pre-push.${tmp_suffix} has been created as the backup of the current pre-push."
fi

curl -sSL "https://gist.githubusercontent.com/jmatsu/3ac8a09f6cd1a4aac747f115584a529d/raw/82c2c24b5b776d1b70baf729752b7d4eb909eb38/prevent-pushing-to-master.bash" -o prevent-pushing-to-master.bash
chmod +x ./prevent-pushing-to-master.bash
ln -s ./prevent-pushing-to-master.bash pre-push

echo "$(pwd)/pre-push has been prepared."

prevent-pushing-to-master.bash

#!/usr/bin/env bash

set -eu

if [[ "${PUSH_TO_MASTER:-false}" == "true" ]]; then
  exit 0
fi

die() {
  echo "$*" >&2
  exit 1
}

while read x y remote_ref z; do
  if [[ "${remote_ref##refs/heads/}" == "master" ]]; then
    die "Never push to master branch. Please set PUSH_TO_MASTER=true if you want to do it."
  fi
done