Bash build script starter

build.sh

#!/usr/bin/env bash

# Enable bash "strict mode"
# http://redsymbol.net/articles/unofficial-bash-strict-mode/
set -euo pipefail
IFS=$'\n\t'


# Some nice colour functions, you might want to add more...
# https://gist.github.com/daytonn/8677243
blue="\033[0;34m"
end="\033[0m"
blue() { echo -e "${blue}${1}${end}"; }


# Usage documentation
USAGE=$(cat <<EOF
This is how to use this:

$(blue 'DOCUMENTATION HERE')

EOF
)


# No first argument
if [ -z ${1+x} ]; then
  echo "$USAGE"
  exit 1
fi


# Actual scripts
build() {
  echo Build script goes here...
  exit 0
}


case "$1" in
  build)
    build
    ;;
  help|-h|--help)
    echo "$USAGE"
    exit 0
    ;;
  *)
    echo "Bad usage"
    echo
    echo "$USAGE"
    exit 1
esac