commit 93b83c3cc4b3d70fbed8ae46caebe4723e764c4d · edavis.dev/bsky-tools

+76 -27
cmd/bsky-users/main.go
···

       4
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       	"context"

     

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       	"database/sql"

     

       6
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       	_ "embed"

     

       7
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       -
       	"encoding/json"

     

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       	"log"

     

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       	"os/signal"

     

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       +
       	"sync"

     

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       	"syscall"

     

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       	"time"

     

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···

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       	Transferred int

     

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       }

     

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       +
       type Queue struct {

     

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       	lk     sync.Mutex

     

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       +
       	events []jetstream.Event

     

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       +
       }

     

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       +
       

     

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       +
       func NewQueue(capacity int) *Queue {

     

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       +
       	return &Queue{

     

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       +
       		events: make([]jetstream.Event, 0, capacity),

     

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       +
       	}

     

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       +
       }

     

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       +
       

     

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       +
       func (q *Queue) Enqueue(event jetstream.Event) {

     

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       +
       	q.lk.Lock()

     

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       +
       	defer q.lk.Unlock()

     

       38
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       +
       

     

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       +
       	q.events = append(q.events, event)

     

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       +
       }

     

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       +
       

     

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       +
       func (q *Queue) Dequeue() (jetstream.Event, bool) {

     

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       	q.lk.Lock()

     

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       +
       	defer q.lk.Unlock()

     

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       +
       

     

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       +
       	if len(q.events) == 0 {

     

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       +
       		var e jetstream.Event

     

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       +
       		return e, false

     

       49
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       +
       	}

     

       50
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       +
       

     

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       +
       	event := q.events[0]

     

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       +
       	q.events = q.events[1:]

     

       53
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       +
       	return event, true

     

       54
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       +
       }

     

       55
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       +
       

     

       56
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       +
       func (q *Queue) Size() int {

     

       57
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       +
       	q.lk.Lock()

     

       58
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       +
       	defer q.lk.Unlock()

     

       59
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       +
       

     

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       +
       	return len(q.events)

     

       61
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       +
       }

     

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       +
       

     

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       var AppBskyAllowlist = map[string]bool{

     

       25
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       	"app.bsky.actor.profile":      true,

     

       26
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       	"app.bsky.feed.generator":     true,

     
···

       46
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       //go:embed schema.sql

     

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       var ddl string

     

       48
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       49
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       -
       func handler(ctx context.Context, events <-chan []byte, dbCnx *sql.DB) {

     

       88
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       +
       func handler(ctx context.Context, queue *Queue, dbCnx *sql.DB) {

     

       50
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       	if _, err := dbCnx.ExecContext(ctx, ddl); err != nil {

     

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       		log.Printf("could not create tables: %v\n", err)

     

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       	}

     
···

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       		eventCount int

     

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       	)

     

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       63
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       -
       	for evt := range events {

     

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       +
       	for {

     

       103
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       +
       		event, ok := queue.Dequeue()

     

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       +
       		if !ok {

     

       105
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       +
       			time.Sleep(100 * time.Millisecond)

     

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       +
       			continue

     

       107
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       +
       		}

     

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       +
       

     

       64
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       		if dbTx == nil {

     

       65
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       			dbTx, err = dbCnx.BeginTx(ctx, nil)

     

       66
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       			if err != nil {

     
···

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       			}

     

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       		}

     

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       -
       		var event jetstream.Event

     

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       -
       		if err := json.Unmarshal(evt, &event); err != nil {

     

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       			continue

     

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       -
       		}

     

       75
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       -
       

     

       76
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       		if event.Kind != jetstream.EventKindCommit {

     

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       			continue

     

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       		}

     
···

       93
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       		dbTx.ExecContext(ctx, userTimestampUpdate, did, ts, ts)

     

       94
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       95
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       		eventCount += 1

     

       96
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       -
       		if eventCount%1000 == 0 {

     

       97
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       -
       			if err := dbTx.Commit(); err != nil {

     

       98
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       -
       				log.Printf("commit failed: %v\n")

     

       136
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       +
       		if eventCount%2500 == 0 {

     

       137
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       +
       			if err = dbTx.Commit(); err != nil {

     

       138
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       +
       				log.Printf("commit failed: %v\n", err)

     

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       +
       			} else {

     

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       +
       				log.Printf("commit successful\n")

     

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       			}

     

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       -
       			var results CheckpointResults

     

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       -
       			err := dbCnx.QueryRowContext(ctx, "PRAGMA wal_checkpoint(RESTART)").Scan(&results.Blocked, &results.Pages, &results.Transferred)

     

       103
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       -
       			switch {

     

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       -
       			case err != nil:

     

       105
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       -
       				log.Printf("failed checkpoint: %v\n", err)

     

       106
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       -
       			case results.Blocked == 1:

     

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       -
       				log.Printf("checkpoint: blocked\n")

     

       108
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       -
       			case results.Pages == results.Transferred:

     

       109
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       -
       				log.Printf("checkpoint: %d pages transferred\n", results.Transferred)

     

       110
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       -
       			case results.Pages != results.Transferred:

     

       111
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       -
       				log.Printf("checkpoint: %d pages, %d transferred\n", results.Pages, results.Transferred)

     

       143
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       +
       			if eventCount%25_000 == 0 {

     

       144
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       +
       				var results CheckpointResults

     

       145
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       +
       				err = dbCnx.QueryRowContext(ctx, "PRAGMA wal_checkpoint(RESTART)").Scan(&results.Blocked, &results.Pages, &results.Transferred)

     

       146
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       +
       				switch {

     

       147
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       +
       				case err != nil:

     

       148
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       +
       					log.Printf("failed checkpoint: %v\n", err)

     

       149
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       +
       				case results.Blocked == 1:

     

       150
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       +
       					log.Printf("checkpoint: blocked\n")

     

       151
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       +
       				case results.Pages == results.Transferred:

     

       152
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       +
       					log.Printf("checkpoint: %d pages transferred\n", results.Transferred)

     

       153
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       +
       				case results.Pages != results.Transferred:

     

       154
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       +
       					log.Printf("checkpoint: %d pages, %d transferred\n", results.Pages, results.Transferred)

     

       155
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       +
       				}

     

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       			}

     

       113
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       114
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       			dbTx, err = dbCnx.BeginTx(ctx, nil)

     

       115
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       			if err != nil {

     

       116
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       				log.Printf("failed to begin transaction: %v\n", err)

     

       117
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       			}

     

       162
       162
       +
       

     

       163
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       +
       			log.Printf("queue size: %d\n", queue.Size())

     

       118
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       		}

     

       119
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       	}

     

       120
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       }

     
···

       123
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       	ctx, stop := signal.NotifyContext(context.Background(), syscall.SIGINT, syscall.SIGTERM)

     

       124
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       	defer stop()

     

       125
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       126
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       -
       	conn, _, err := websocket.DefaultDialer.Dial(JetstreamUrl, nil)

     

       172
       172
       +
       	conn, _, err := websocket.DefaultDialer.DialContext(ctx, JetstreamUrl, nil)

     

       127
       173
        
       	if err != nil {

     

       128
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       		log.Fatalf("failed to open websocket: %v\n", err)

     

       129
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       	}

     
···

       149
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       		log.Printf("db closed\n")

     

       150
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       	}()

     

       151
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       152
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       -
       	jetstreamEvents := make(chan []byte)

     

       153
       153
       -
       	go handler(ctx, jetstreamEvents, dbCnx)

     

       198
       198
       +
       	queue := NewQueue(100_000)

     

       199
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       +
       	go handler(ctx, queue, dbCnx)

     

       154
       200
        
       

     

       155
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       	log.Printf("starting up\n")

     

       156
       202
        
       	go func() {

     

       157
       203
        
       		for {

     

       158
       158
       -
       			_, message, err := conn.ReadMessage()

     

       204
       204
       +
       			var event jetstream.Event

     

       205
       205
       +
       			err := conn.ReadJSON(&event)

     

       159
       206
        
       			if err != nil {

     

       207
       207
       +
       				log.Printf("ReadJSON error: %v\n", err)

     

       160
       208
        
       				stop()

     

       209
       209
       +
       				break

     

       161
       210
        
       			}

     

       162
       162
       -
       			jetstreamEvents <- message

     

       211
       211
       +
       			queue.Enqueue(event)

     

       163
       212
        
       		}

     

       164
       213
        
       	}()

     

       165
       214