Script to upload things to Google Cloud Storage via OAuth bearer token

upload.sh

!/bin/bash

set -e

usage () {
    echo "Usage:"
    echo "  upload.sh [object] [bucket] [OAuth bearer token]"
}

[ -z "$1" ] && echo "ERROR: No local object name supplied." && usage && exit 1
[ -z "$2" ] && echo "ERROR: No bucket name supplied." && usage && exit 1
[ -z "$3" ] && echo "ERROR: No bearer auth token supplied." && usage && exit 1 

[ ! -f "$1" ] && echo "ERROR: Refusing to upload nonexistant file '$1'." && exit 2

curl -X POST --data-binary @"$1" \
    -H "Authorization: Bearer $3" \
    -H "Content-Type: application/gzip" \
    "https://www.googleapis.com/upload/storage/v1/b/$2/o?uploadType=media&name=$1"