#!/bin/sh# Check for "DELME" in commit messages of about-to-be-pushed commits##################################################################### This hook script is triggered by `git push` right after a connection to the remote# was established and its initial response was received, and right before generating# and pushing a pack-file.# The operation will be aborted when exiting with a non-zero status.## The following arguments are provided:## $1 - The symbolic name of the remote to push to, like "origin" or the URL like "https://github.com/GitoxideLabs/gitoxide" if there is no such name.# $2 - The URL of the remote to push to, like "https://github.com/GitoxideLabs/gitoxide".## The hook should then read from standard input in a line-by-line fashion and split the following space-separated fields:## * local ref - the left side of a ref-spec, i.e. "local" of the "local:refs/heads/remote" ref-spec# * local hash - the hash of the commit pointed to by `local ref`# * remote ref - the right side of a ref-spec, i.e. "refs/heads/remote" of the "local:refs/heads/remote" ref-spec# * remote hash - the hash of the commit pointed to by `remote ref`## In this example, we abort the push if any of the about-to-be-pushed commits have "DELME" in their commit message.## To enable this hook remove the `.sample` suffix from this file entirely. remote="$1"url="$2" # Check each commit being pushedwhile read _local_ref local_hash _remote_ref _remote_hash; do  # Skip if the local hash is all zeroes (deletion)  zero_sha=$(printf "%0${#local_hash}d" 0)  if [ "$local_hash" = "$zero_sha" ]; then    continue  fi  # Get the commit message  commit_msg=$(git log --format=%s -n 1 "$local_hash")   # Check if the commit message contains "DELME"  if echo "$commit_msg" | grep -iq "DELME"; then    echo "Error: Found commit with 'DELME' in message. Push aborted to $remote ($url) aborted." 1>&2    exit 1  fidone # If no commit with "DELME" found, allow the pushexit 0