git hooks

pre-commit

#!/bin/bash

# Built off of Standard JS's pre-commit example: https://standardjs.com/#is-there-a-git-pre-commit-hook

# Ensure all files staged for commit pass standard code style
function xargs-r() {
  # Portable version of "xargs -r". The -r flag is a GNU extension that
  # prevents xargs from running if there are no input files
  if IFS= read -r -d $'\n' path; then
    { echo "$path"; cat; } | xargs $@
  fi
}

# If there's a $RUBOCOP preference set in a project's .envrc, use it, even if
# standardrb is available
[[ -z $RUBOCOP ]] && {
  [[ -x `command -v rubocop` ]] && RUBOCOP=rubocop
  [[ -x `command -v standardrb` ]] && RUBOCOP=standardrb
}
[[ -n $RUBOCOP ]] && [[ -x `command -v ${RUBOCOP}` ]] && {
  git diff --name-only --cached --relative | grep '\.rb$' | sed 's/[^[:alnum:]]/\\&/g' | xargs-r -E '' -t $RUBOCOP
  if [[ $? -ne 0 ]]; then
    echo 'Rubocop errors were detected. Aborting commit.'
    exit 1
  fi
}

[[ -x `command -v standard` ]] && {
  git diff --name-only --cached --relative | grep '\.jsx\?$' | sed 's/[^[:alnum:]]/\\&/g' | xargs-r -E '' -t standard --fix
  if [[ $? -ne 0 ]]; then
    echo 'JavaScript Standard Style errors were detected. Aborting commit.'
    exit 1
  fi
}

[[ -x `command -v stylelint` ]] && {
  git diff --name-only --cached --relative | grep '\.s(a|c)ss$' | sed 's/[^[:alnum:]]/\\&/g' | xargs-r -E '' -t stylelint --fix --mw 5
  if [[ $? -ne 0 ]]; then
    echo 'Stylelint errors were detected. Aborting commit.'
    exit 1
  fi
}


[[ -x `command -v mix` ]] && {
  git diff --name-only --cached --relative | grep '\.ex$' | sed 's/[^[:alnum:]]/\\&/g' | xargs-r -E '' -t mix --check-formatted
  if [[ $? -ne 0 ]]; then
    echo 'Elixer formatting errors were detected. Aborting commit.'
    exit 1
  fi
}