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move r2-pump from GCP function to binary
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,74 @@ | ||
| // Wrapper around a Golang GCP function allowing to be running as a binary | ||
| package main | ||
|
|
||
| import ( | ||
| "context" | ||
| "encoding/json" | ||
| "log" | ||
| "os" | ||
| "runtime" | ||
|
|
||
| "github.com/cdnjs/tools/gcp" | ||
| "github.com/cdnjs/tools/sentry" | ||
|
|
||
| r2_pump "github.com/cdnjs/tools/functions/r2-pump" | ||
|
|
||
| "cloud.google.com/go/pubsub" | ||
| "github.com/pkg/errors" | ||
| ) | ||
|
|
||
| var ( | ||
| PROJECT = os.Getenv("PROJECT") | ||
| SUBSCRIPTION = os.Getenv("SUBSCRIPTION") | ||
| ) | ||
|
|
||
| func init() { | ||
| sentry.Init() | ||
| } | ||
|
|
||
| func main() { | ||
| ctx := context.Background() | ||
| client, err := pubsub.NewClient(ctx, PROJECT) | ||
| if err != nil { | ||
| log.Fatalf("could not create pubsub Client: %v", err) | ||
| } | ||
| sub := client.Subscription(SUBSCRIPTION) | ||
| sub.ReceiveSettings.Synchronous = true | ||
| sub.ReceiveSettings.MaxOutstandingMessages = 5 | ||
| sub.ReceiveSettings.NumGoroutines = runtime.NumCPU() | ||
|
|
||
| for { | ||
| log.Printf("started consuming messages\n") | ||
| if err := consume(ctx, client, sub); err != nil { | ||
| log.Fatalf("could not pull messages: %s", err) | ||
| } | ||
| } | ||
| } | ||
|
|
||
| type Message struct { | ||
| GCSEvent gcp.GCSEvent `json:"gcsEvent"` | ||
| } | ||
|
|
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| func consume(ctx context.Context, client *pubsub.Client, sub *pubsub.Subscription) error { | ||
| err := sub.Receive(ctx, func(ctx context.Context, msg *pubsub.Message) { | ||
| log.Printf("received message: %s\n", msg.Data) | ||
|
|
||
| msg.Ack() | ||
| if err := processMessage(ctx, msg.Data); err != nil { | ||
| log.Printf("failed to process message: %s\n", err) | ||
| } | ||
| }) | ||
| if err != nil { | ||
| return errors.Wrap(err, "could not receive from subscription") | ||
| } | ||
| return nil | ||
| } | ||
|
|
||
| func processMessage(ctx context.Context, data []byte) error { | ||
| var message Message | ||
| if err := json.Unmarshal(data, &message); err != nil { | ||
| return errors.Wrap(err, "failed to parse") | ||
| } | ||
|
|
||
| return r2_pump.Invoke(ctx, message.GCSEvent) | ||
| } |
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