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Add Option for Uploading files in Reverse Order #28

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Add Option for Uploading files in Reverse Order #28

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12 changes: 11 additions & 1 deletion cmd/upload.go
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Original file line number Diff line number Diff line change
Expand Up @@ -36,6 +36,8 @@ import (
"time"
)

var reverse bool

const MultiBundleFileBundleDelimiter = byte('\n')

func NewFileChunkReader(file *os.File, offsetBytes int64, limitBytes int64) (*io.LimitedReader, error) {
Expand Down Expand Up @@ -417,7 +419,14 @@ func newUploadBundleConsumer(client *fhir.Client, uploadResults chan<- bundleUpl
func (consumer *uploadBundleConsumer) uploadBundles(uploadBundles []bundle, concurrency int, wg *sync.WaitGroup) {
limiter := make(chan bool, concurrency)

for _, queueItem := range uploadBundles {
for i := 0; i < len(uploadBundles); i++ {
var queueItem bundle
if reverse {
queueItem = uploadBundles[len(uploadBundles)-(i+1)]
} else {
queueItem = uploadBundles[i]
}

limiter <- true
wg.Add(1)
go func(b bundle, limiter <-chan bool, wg *sync.WaitGroup) {
Expand Down Expand Up @@ -629,6 +638,7 @@ func init() {

uploadCmd.Flags().StringVar(&server, "server", "", "the base URL of the server to use")
uploadCmd.Flags().IntVarP(&concurrency, "concurrency", "c", 2, "number of parallel uploads")
uploadCmd.Flags().BoolVarP(&reverse, "reverse", "r", false, "upload data in reverse order")

_ = uploadCmd.MarkFlagRequired("server")
}