pre-commit

#!/usr/bin/env bash

staged_files=$(git diff --name-only --cached)

# check all newly added lines for bad language
bad_found=false

# go through each file added with changes
echo "running bad language checks:"
for file in $staged_files; do
    # check each line starting with `+` in the diff
    while read line; do
        regex='\<heck'
        if [[ $line =~ $regex ]]; then
            echo "in $file> $line"
            bad_found=true
        fi
    done <<< "$(git diff HEAD --no-ext-diff --unified=0 --exit-code -a --no-prefix $file | sed -n '/^\+/s///p')" # here string is necessary to keep the while loop in the current shell
done

if [ "$bad_found" = true ]; then
    exit 1
fi

npx prettier --check --ignore-unknown $staged_files || exit 2