typescript pre commit example

pre-commit.ts.example.sh

#!/bin/sh

PATH=$PATH:/usr/local/bin
PROJECT_ROOT=$(pwd)
STAGED_FILES=$(git diff --cached --name-only --diff-filter=ACM | grep ".tsx\{0,1\}$")
ESLINT="$(git rev-parse --show-toplevel)/node_modules/.bin/eslint"

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

PASS=true

printf "\nValidating Typescript:\n"

# Check for eslint
if [[ ! -x "$ESLINT" ]]; then
  printf "\t\033[41mPlease install ESlint\033[0m (yarn add eslint --dev)"
  exit 1
fi

for FILE in $STAGED_FILES
do
  npx eslint "$PROJECT_ROOT/$FILE"

  if [[ "$?" == 0 ]]; then
    printf "\t\033[32mESLint Passed: $FILE\033[0m"
  else
    printf "\t\033[41mESLint Failed: $FILE\033[0m"
    PASS=false
  fi
done

printf "\nTypescript validation completed!\n"

if ! $PASS; then
  printf "\033[41mCOMMIT FAILED:\033[0m Your commit contains files that should pass ESLint but do not. Please fix the ESLint errors and try again.\n"
  exit 1
else
  printf "\033[42mCOMMIT SUCCEEDED\033[0m\n"
fi

exit $?