Watch file changes and run go test (OSX)

go-watch.sh

#!/bin/bash

echo "Watching for changes..."

red() {
  str="$1"
  sed "/[[:<:]]$str/s//$(printf "\033[31m$str\033[0m")/"
}

green() {
  str="$1"
  sed "/[[:<:]]$str/s//$(printf "\033[32m$str\033[0m")/"
}

fswatch -e '\.git' . | while read file
do
  if ! echo $file | grep -q '\.go$'; then
      continue
  fi

  package="$(dirname "${file##$GOPATH/src/}")"
  cmd="go test -short $@ $package"

  echo -n "..."
  date
  echo "...Changed: ${file##$PWD/}"
  echo "...Running: $cmd"

  output=$($cmd 2>&1)
  if [[ $? == 0 ]]; then
    message="PASS"
  else
    message="FAIL"
  fi

  echo "$output" | green "ok" | red "FAIL" | red "FATAL"
  terminal-notifier -message "$message $package" -title "Test results"
done