package.json

 "precommit.silent": true,
  "pre-commit": [
    "pre-commit-eslint"
  ]

pre-commit.sh

#!/bin/sh

STAGED_FILES=$(git diff --cached --name-only --diff-filter=ACM | grep ".jsx\{0,1\}$")

if [[ "$STAGED_FILES" = "" ]]; then
  exit 0
fi

PASS=true

echo "Running ESLint validation:\n"

for FILE in $STAGED_FILES
do
  `npm bin`/eslint "$FILE"

  if [[ "$?" == 0 ]]; then
    echo "\n\033[32mESLint validation passed!: $FILE\033[0m"
  else
    echo "\n\033[31mValidation failed --> $FILE\033[0m"
    PASS=false
  fi
done

echo "\nCheck completed!\n"

if ! $PASS; then
  echo "\n\033[31mCOMMIT FAILED: YOU SHALL NOT PASS!!\033[0m"
  echo "\n\033[36mPlease fix ESLint error[s] and retry!\033[0m"
  exit 1
else
  echo "\n\033[32mCOMMIT SUCCEEDED\033[0m\n"
fi

exit $?