func uploadFile(bucket *s3.Bucket, reader io.Reader, dest string, includeHash bool, caching int) string {
buffer := bytes.NewBuffer([]byte{})
compress := shouldCompress(dest)
if compress {
writer := gzip.NewWriter(buffer)
must(io.Copy(writer, reader))
writer.Close()
} else {
must(io.Copy(buffer, reader))
}
data := buffer.Bytes()
hash := hashBytes(data)
hashPrefix := fmt.Sprintf("%x", hash)[:12]
s3Opts := s3.Options{
ContentMD5: base64.StdEncoding.EncodeToString(hash),
CacheControl: fmt.Sprintf("public, max-age=%d", caching),
}
if compress {
s3Opts.ContentEncoding = "gzip"
}
if includeHash {
dest = filepath.Join(hashPrefix, dest)
}
log.Printf("Uploading to %s in %s (%s) [%d]\n", dest, bucket.Name, hashPrefix, caching)
err := bucket.PutReader(dest, buffer, int64(len(data)), guessContentType(dest), s3.PublicRead, s3Opts)
panicIf(err)
return dest
}
