commit c0f36234cf5f53eeef547356cd61c2faab985770 · edavis.dev/monarch

+15

cmd/backfiller2/backfill.go

···

       1
       1
       +
       package main

     

       2
       2
       +
       

     

       3
       3
       +
       import "github.com/bluesky-social/indigo/backfill"

     

       4
       4
       +
       

     

       5
       5
       +
       func NewBackfillService(store backfill.Store, h *HandlerService) *backfill.Backfiller {

     

       6
       6
       +
       	opts := &backfill.BackfillOptions{

     

       7
       7
       +
       		ParallelBackfills:     10,

     

       8
       8
       +
       		ParallelRecordCreates: 1,

     

       9
       9
       +
       		NSIDFilter:            "",

     

       10
       10
       +
       		SyncRequestsPerSecond: 5,

     

       11
       11
       +
       		RelayHost:             "https://bsky.network",

     

       12
       12
       +
       	}

     

       13
       13
       +
       

     

       14
       14
       +
       	return backfill.NewBackfiller("backfiller", store, h.HandleCreate, h.HandleUpdate, h.HandleDelete, opts)

     

       15
       15
       +
       }

+71

cmd/backfiller2/census.go

···

       1
       1
       +
       package main

     

       2
       2
       +
       

     

       3
       3
       +
       import (

     

       4
       4
       +
       	"context"

     

       5
       5
       +
       	"log/slog"

     

       6
       6
       +
       

     

       7
       7
       +
       	"github.com/bluesky-social/indigo/api/atproto"

     

       8
       8
       +
       	"github.com/bluesky-social/indigo/backfill"

     

       9
       9
       +
       	"github.com/bluesky-social/indigo/xrpc"

     

       10
       10
       +
       )

     

       11
       11
       +
       

     

       12
       12
       +
       type CensusService struct {

     

       13
       13
       +
       	cursor   *CursorService

     

       14
       14
       +
       	backfill *backfill.Backfiller

     

       15
       15
       +
       }

     

       16
       16
       +
       

     

       17
       17
       +
       type jobMaker interface {

     

       18
       18
       +
       	GetOrCreateJob(context.Context, string, string) (backfill.Job, error)

     

       19
       19
       +
       }

     

       20
       20
       +
       

     

       21
       21
       +
       func NewCensusService(cursorSvc *CursorService, backfillSvc *backfill.Backfiller) *CensusService {

     

       22
       22
       +
       	return &CensusService{

     

       23
       23
       +
       		cursor:   cursorSvc,

     

       24
       24
       +
       		backfill: backfillSvc,

     

       25
       25
       +
       	}

     

       26
       26
       +
       }

     

       27
       27
       +
       

     

       28
       28
       +
       func (cs *CensusService) Start(ctx context.Context) {

     

       29
       29
       +
       	xrpcc := &xrpc.Client{

     

       30
       30
       +
       		Host: "https://bsky.network",

     

       31
       31
       +
       	}

     

       32
       32
       +
       

     

       33
       33
       +
       	jmstore, ok := cs.backfill.Store.(jobMaker)

     

       34
       34
       +
       	if !ok {

     

       35
       35
       +
       		slog.Error("configured job store doesn't support random job creation")

     

       36
       36
       +
       		return

     

       37
       37
       +
       	}

     

       38
       38
       +
       

     

       39
       39
       +
       	curs, _ := cs.cursor.Get("repos")

     

       40
       40
       +
       	for {

     

       41
       41
       +
       		select {

     

       42
       42
       +
       		case <-ctx.Done():

     

       43
       43
       +
       			slog.Info("stopping repo census")

     

       44
       44
       +
       			return

     

       45
       45
       +
       		default:

     

       46
       46
       +
       		}

     

       47
       47
       +
       

     

       48
       48
       +
       		slog.Info("listing repos", "cursor", curs)

     

       49
       49
       +
       		res, err := atproto.SyncListRepos(ctx, xrpcc, curs, 1000)

     

       50
       50
       +
       		if err != nil {

     

       51
       51
       +
       			slog.Error("error listing repos", "err", err)

     

       52
       52
       +
       			return

     

       53
       53
       +
       		}

     

       54
       54
       +
       

     

       55
       55
       +
       		for _, repo := range res.Repos {

     

       56
       56
       +
       			_, err := jmstore.GetOrCreateJob(ctx, repo.Did, backfill.StateEnqueued)

     

       57
       57
       +
       			if err != nil {

     

       58
       58
       +
       				slog.Error("error adding listed repo to backfiller", "err", err)

     

       59
       59
       +
       			}

     

       60
       60
       +
       		}

     

       61
       61
       +
       

     

       62
       62
       +
       		if res.Cursor != nil && *res.Cursor != "" {

     

       63
       63
       +
       			cs.cursor.reposLk.Lock()

     

       64
       64
       +
       			curs = *res.Cursor

     

       65
       65
       +
       			cs.cursor.reposSeq = curs

     

       66
       66
       +
       			cs.cursor.reposLk.Unlock()

     

       67
       67
       +
       		} else {

     

       68
       68
       +
       			break

     

       69
       69
       +
       		}

     

       70
       70
       +
       	}

     

       71
       71
       +
       }

+109

cmd/backfiller2/cursors.go

···

       1
       1
       +
       package main

     

       2
       2
       +
       

     

       3
       3
       +
       import (

     

       4
       4
       +
       	"context"

     

       5
       5
       +
       	"fmt"

     

       6
       6
       +
       	"log/slog"

     

       7
       7
       +
       	"strconv"

     

       8
       8
       +
       	"sync"

     

       9
       9
       +
       	"time"

     

       10
       10
       +
       

     

       11
       11
       +
       	"gorm.io/gorm"

     

       12
       12
       +
       )

     

       13
       13
       +
       

     

       14
       14
       +
       type cursorRecord struct {

     

       15
       15
       +
       	ID  uint `gorm:"primaryKey"`

     

       16
       16
       +
       	Key string

     

       17
       17
       +
       	Val string

     

       18
       18
       +
       }

     

       19
       19
       +
       

     

       20
       20
       +
       type CursorService struct {

     

       21
       21
       +
       	store *gorm.DB

     

       22
       22
       +
       

     

       23
       23
       +
       	firehoseLk  sync.Mutex

     

       24
       24
       +
       	firehoseSeq string

     

       25
       25
       +
       

     

       26
       26
       +
       	reposLk  sync.Mutex

     

       27
       27
       +
       	reposSeq string

     

       28
       28
       +
       }

     

       29
       29
       +
       

     

       30
       30
       +
       func NewCursorService(store *gorm.DB) *CursorService {

     

       31
       31
       +
       	store.AutoMigrate(&cursorRecord{})

     

       32
       32
       +
       

     

       33
       33
       +
       	var rec cursorRecord

     

       34
       34
       +
       	store.First(&rec, 1)

     

       35
       35
       +
       	if rec.ID == 0 {

     

       36
       36
       +
       		store.Create(&cursorRecord{ID: 1, Key: "firehose", Val: ""})

     

       37
       37
       +
       	}

     

       38
       38
       +
       

     

       39
       39
       +
       	store.First(&rec, 2)

     

       40
       40
       +
       	if rec.ID == 0 {

     

       41
       41
       +
       		store.Create(&cursorRecord{ID: 2, Key: "repos", Val: ""})

     

       42
       42
       +
       	}

     

       43
       43
       +
       

     

       44
       44
       +
       	return &CursorService{

     

       45
       45
       +
       		store: store,

     

       46
       46
       +
       	}

     

       47
       47
       +
       }

     

       48
       48
       +
       

     

       49
       49
       +
       func (cs *CursorService) Get(key string) (string, error) {

     

       50
       50
       +
       	var rec cursorRecord

     

       51
       51
       +
       	if err := cs.store.Where("key = ?", key).First(&rec).Error; err != nil {

     

       52
       52
       +
       		return "", fmt.Errorf("error fetching cursor record: %w", err)

     

       53
       53
       +
       	}

     

       54
       54
       +
       	return rec.Val, nil

     

       55
       55
       +
       }

     

       56
       56
       +
       

     

       57
       57
       +
       func (cs *CursorService) SetFirehoseCursor(seq int64) {

     

       58
       58
       +
       	cs.firehoseLk.Lock()

     

       59
       59
       +
       	val := strconv.Itoa(int(seq))

     

       60
       60
       +
       	cs.firehoseSeq = val

     

       61
       61
       +
       	cs.firehoseLk.Unlock()

     

       62
       62
       +
       }

     

       63
       63
       +
       

     

       64
       64
       +
       func (cs *CursorService) SetReposCursor(value string) {

     

       65
       65
       +
       	cs.reposLk.Lock()

     

       66
       66
       +
       	cs.reposSeq = value

     

       67
       67
       +
       	cs.reposLk.Unlock()

     

       68
       68
       +
       }

     

       69
       69
       +
       

     

       70
       70
       +
       func (cs *CursorService) Flush() error {

     

       71
       71
       +
       	flusher := func(lk *sync.Mutex, key, value string) error {

     

       72
       72
       +
       		lk.Lock()

     

       73
       73
       +
       		if err := cs.store.Model(&cursorRecord{}).Where("key = ?", key).Update("val", value).Error; err != nil {

     

       74
       74
       +
       			return fmt.Errorf("error updating cursor record: %+v: %w", cursorRecord{Key: key, Val: value}, err)

     

       75
       75
       +
       		}

     

       76
       76
       +
       		lk.Unlock()

     

       77
       77
       +
       		return nil

     

       78
       78
       +
       	}

     

       79
       79
       +
       

     

       80
       80
       +
       	if err := flusher(&cs.firehoseLk, "firehose", cs.firehoseSeq); err != nil {

     

       81
       81
       +
       		return err

     

       82
       82
       +
       	}

     

       83
       83
       +
       

     

       84
       84
       +
       	if err := flusher(&cs.reposLk, "repos", cs.reposSeq); err != nil {

     

       85
       85
       +
       		return err

     

       86
       86
       +
       	}

     

       87
       87
       +
       

     

       88
       88
       +
       	return nil

     

       89
       89
       +
       }

     

       90
       90
       +
       

     

       91
       91
       +
       func (cs *CursorService) CheckpointCursors(ctx context.Context) {

     

       92
       92
       +
       	t := time.NewTicker(time.Second * 5)

     

       93
       93
       +
       	defer t.Stop()

     

       94
       94
       +
       

     

       95
       95
       +
       	for {

     

       96
       96
       +
       		select {

     

       97
       97
       +
       		case <-ctx.Done():

     

       98
       98
       +
       			slog.Info("stopping cursor checkpointer")

     

       99
       99
       +
       			return

     

       100
       100
       +
       		case <-t.C:

     

       101
       101
       +
       		}

     

       102
       102
       +
       

     

       103
       103
       +
       		slog.Info("flushing cursors")

     

       104
       104
       +
       		if err := cs.Flush(); err != nil {

     

       105
       105
       +
       			slog.Error("error flushing cursors", "err", err)

     

       106
       106
       +
       			return

     

       107
       107
       +
       		}

     

       108
       108
       +
       	}

     

       109
       109
       +
       }

+31

cmd/backfiller2/database.go

···

       1
       1
       +
       package main

     

       2
       2
       +
       

     

       3
       3
       +
       import (

     

       4
       4
       +
       	"log"

     

       5
       5
       +
       	"log/slog"

     

       6
       6
       +
       	"os"

     

       7
       7
       +
       	"time"

     

       8
       8
       +
       

     

       9
       9
       +
       	"gorm.io/driver/sqlite"

     

       10
       10
       +
       	"gorm.io/gorm"

     

       11
       11
       +
       	"gorm.io/gorm/logger"

     

       12
       12
       +
       )

     

       13
       13
       +
       

     

       14
       14
       +
       func NewDatabase(path string) *gorm.DB {

     

       15
       15
       +
       	sl := slog.With("source", "database")

     

       16
       16
       +
       	l := logger.New(

     

       17
       17
       +
       		log.New(os.Stdout, "\r\n", log.LstdFlags),

     

       18
       18
       +
       		logger.Config{

     

       19
       19
       +
       			SlowThreshold: time.Second,

     

       20
       20
       +
       			Colorful:      false,

     

       21
       21
       +
       		},

     

       22
       22
       +
       	)

     

       23
       23
       +
       	db, err := gorm.Open(sqlite.Open(path), &gorm.Config{

     

       24
       24
       +
       		Logger: l,

     

       25
       25
       +
       	})

     

       26
       26
       +
       	if err != nil {

     

       27
       27
       +
       		sl.Error("failed to open database", "err", err)

     

       28
       28
       +
       	}

     

       29
       29
       +
       	db.Exec("PRAGMA journal_mode=WAL")

     

       30
       30
       +
       	return db

     

       31
       31
       +
       }

+25

cmd/backfiller2/firehose.go

···

       1
       1
       +
       package main

     

       2
       2
       +
       

     

       3
       3
       +
       import (

     

       4
       4
       +
       	"context"

     

       5
       5
       +
       	"net/http"

     

       6
       6
       +
       

     

       7
       7
       +
       	"github.com/gorilla/websocket"

     

       8
       8
       +
       )

     

       9
       9
       +
       

     

       10
       10
       +
       func NewFirehoseConnection(ctx context.Context, cursorSvc *CursorService) (*websocket.Conn, error) {

     

       11
       11
       +
       	url := "wss://bsky.network/xrpc/com.atproto.sync.subscribeRepos"

     

       12
       12
       +
       	curs, _ := cursorSvc.Get("firehose")

     

       13
       13
       +
       	if curs != "" {

     

       14
       14
       +
       		url += "?cursor=" + curs

     

       15
       15
       +
       	}

     

       16
       16
       +
       

     

       17
       17
       +
       	conn, _, err := websocket.DefaultDialer.DialContext(ctx, url, http.Header{

     

       18
       18
       +
       		"User-Agent": []string{"backfiller/0.1 (@edavis.dev)"},

     

       19
       19
       +
       	})

     

       20
       20
       +
       	if err != nil {

     

       21
       21
       +
       		return nil, err

     

       22
       22
       +
       	}

     

       23
       23
       +
       

     

       24
       24
       +
       	return conn, nil

     

       25
       25
       +
       }

+55

cmd/backfiller2/handlers.go

···

       1
       1
       +
       package main

     

       2
       2
       +
       

     

       3
       3
       +
       import (

     

       4
       4
       +
       	"bytes"

     

       5
       5
       +
       	"context"

     

       6
       6
       +
       	"fmt"

     

       7
       7
       +
       	"strings"

     

       8
       8
       +
       

     

       9
       9
       +
       	appbsky "github.com/bluesky-social/indigo/api/bsky"

     

       10
       10
       +
       	"github.com/ipfs/go-cid"

     

       11
       11
       +
       	"gorm.io/gorm"

     

       12
       12
       +
       )

     

       13
       13
       +
       

     

       14
       14
       +
       type HandlerService struct {

     

       15
       15
       +
       	store *gorm.DB

     

       16
       16
       +
       }

     

       17
       17
       +
       

     

       18
       18
       +
       func NewHandlerService(store *gorm.DB) *HandlerService {

     

       19
       19
       +
       	store.AutoMigrate(&Profile{})

     

       20
       20
       +
       	store.AutoMigrate(&Feedgen{})

     

       21
       21
       +
       	// TODO the rest

     

       22
       22
       +
       

     

       23
       23
       +
       	return &HandlerService{

     

       24
       24
       +
       		store: store,

     

       25
       25
       +
       	}

     

       26
       26
       +
       }

     

       27
       27
       +
       

     

       28
       28
       +
       func (hs *HandlerService) HandleCreate(ctx context.Context, repo string, rev string, path string, rec *[]byte, cid *cid.Cid) error {

     

       29
       29
       +
       	if !strings.HasPrefix(path, "app.bsky.feed.generator/") {

     

       30
       30
       +
       		return nil

     

       31
       31
       +
       	}

     

       32
       32
       +
       

     

       33
       33
       +
       	var out appbsky.FeedGenerator

     

       34
       34
       +
       	if err := out.UnmarshalCBOR(bytes.NewReader(*rec)); err != nil {

     

       35
       35
       +
       		return fmt.Errorf("error unmarshalling record: %w", err)

     

       36
       36
       +
       	}

     

       37
       37
       +
       

     

       38
       38
       +
       	feedgen := Feedgen{

     

       39
       39
       +
       		DisplayName: out.DisplayName,

     

       40
       40
       +
       	}

     

       41
       41
       +
       

     

       42
       42
       +
       	if err := hs.store.Create(&feedgen).Error; err != nil {

     

       43
       43
       +
       		return fmt.Errorf("error saving feedgen: %w", err)

     

       44
       44
       +
       	}

     

       45
       45
       +
       

     

       46
       46
       +
       	return nil

     

       47
       47
       +
       }

     

       48
       48
       +
       

     

       49
       49
       +
       func (hs *HandlerService) HandleUpdate(ctx context.Context, repo string, rev string, path string, rec *[]byte, cid *cid.Cid) error {

     

       50
       50
       +
       	return nil

     

       51
       51
       +
       }

     

       52
       52
       +
       

     

       53
       53
       +
       func (hs *HandlerService) HandleDelete(ctx context.Context, repo string, rev string, path string) error {

     

       54
       54
       +
       	return nil

     

       55
       55
       +
       }

+122

cmd/backfiller2/main.go

···

       1
       1
       +
       package main

     

       2
       2
       +
       

     

       3
       3
       +
       import (

     

       4
       4
       +
       	"context"

     

       5
       5
       +
       	"fmt"

     

       6
       6
       +
       	"log/slog"

     

       7
       7
       +
       	"os/signal"

     

       8
       8
       +
       	"syscall"

     

       9
       9
       +
       	"time"

     

       10
       10
       +
       

     

       11
       11
       +
       	comatproto "github.com/bluesky-social/indigo/api/atproto"

     

       12
       12
       +
       	"github.com/bluesky-social/indigo/backfill"

     

       13
       13
       +
       	"github.com/bluesky-social/indigo/events"

     

       14
       14
       +
       	"github.com/bluesky-social/indigo/events/schedulers/parallel"

     

       15
       15
       +
       	"github.com/gorilla/websocket"

     

       16
       16
       +
       	"gorm.io/gorm"

     

       17
       17
       +
       )

     

       18
       18
       +
       

     

       19
       19
       +
       type App struct {

     

       20
       20
       +
       	backfill *backfill.Backfiller

     

       21
       21
       +
       	cursor   *CursorService

     

       22
       22
       +
       	handler  *HandlerService

     

       23
       23
       +
       	census   *CensusService

     

       24
       24
       +
       	wsconn   *websocket.Conn

     

       25
       25
       +
       	state    *gorm.DB

     

       26
       26
       +
       	content  *gorm.DB

     

       27
       27
       +
       }

     

       28
       28
       +
       

     

       29
       29
       +
       func NewApp() *App {

     

       30
       30
       +
       	stateDatabase := NewDatabase("state.db")

     

       31
       31
       +
       	stateDatabase.AutoMigrate(&backfill.GormDBJob{})

     

       32
       32
       +
       

     

       33
       33
       +
       	contentDatabase := NewDatabase("content.db")

     

       34
       34
       +
       

     

       35
       35
       +
       	return &App{

     

       36
       36
       +
       		state:   stateDatabase,

     

       37
       37
       +
       		content: contentDatabase,

     

       38
       38
       +
       	}

     

       39
       39
       +
       }

     

       40
       40
       +
       

     

       41
       41
       +
       func (app *App) Start(ctx context.Context) error {

     

       42
       42
       +
       	app.cursor = NewCursorService(app.state)

     

       43
       43
       +
       	go app.cursor.CheckpointCursors(ctx)

     

       44
       44
       +
       

     

       45
       45
       +
       	app.handler = NewHandlerService(app.content)

     

       46
       46
       +
       

     

       47
       47
       +
       	app.backfill = NewBackfillService(backfill.NewGormstore(app.state), app.handler)

     

       48
       48
       +
       	go app.backfill.Start()

     

       49
       49
       +
       

     

       50
       50
       +
       	app.census = NewCensusService(app.cursor, app.backfill)

     

       51
       51
       +
       	go app.census.Start(ctx)

     

       52
       52
       +
       

     

       53
       53
       +
       	wsconn, err := NewFirehoseConnection(ctx, app.cursor)

     

       54
       54
       +
       	if err != nil {

     

       55
       55
       +
       		return fmt.Errorf("error connecting to relay: %w", err)

     

       56
       56
       +
       	}

     

       57
       57
       +
       	app.wsconn = wsconn

     

       58
       58
       +
       

     

       59
       59
       +
       	rsc := events.RepoStreamCallbacks{

     

       60
       60
       +
       		RepoCommit: func(evt *comatproto.SyncSubscribeRepos_Commit) error {

     

       61
       61
       +
       			app.cursor.SetFirehoseCursor(evt.Seq)

     

       62
       62
       +
       			return app.backfill.HandleEvent(ctx, evt)

     

       63
       63
       +
       		},

     

       64
       64
       +
       		// TODO account

     

       65
       65
       +
       		// TODO identity

     

       66
       66
       +
       	}

     

       67
       67
       +
       

     

       68
       68
       +
       	sched := parallel.NewScheduler(4, 50, "firehose", rsc.EventHandler)

     

       69
       69
       +
       

     

       70
       70
       +
       	if err := events.HandleRepoStream(ctx, app.wsconn, sched, nil); err != nil {

     

       71
       71
       +
       		return fmt.Errorf("error starting repo stream handler: %w", err)

     

       72
       72
       +
       	}

     

       73
       73
       +
       

     

       74
       74
       +
       	return nil

     

       75
       75
       +
       }

     

       76
       76
       +
       

     

       77
       77
       +
       func (app *App) Stop(ctx context.Context) error {

     

       78
       78
       +
       	closeDatabase := func(db *gorm.DB) error {

     

       79
       79
       +
       		raw, err := db.DB()

     

       80
       80
       +
       		if err != nil {

     

       81
       81
       +
       			return fmt.Errorf("error getting raw DB: %w", err)

     

       82
       82
       +
       		}

     

       83
       83
       +
       		if err := raw.Close(); err != nil {

     

       84
       84
       +
       			return fmt.Errorf("error closing DB: %w", err)

     

       85
       85
       +
       		}

     

       86
       86
       +
       		return nil

     

       87
       87
       +
       	}

     

       88
       88
       +
       

     

       89
       89
       +
       	if err := closeDatabase(app.state); err != nil {

     

       90
       90
       +
       		return err

     

       91
       91
       +
       	}

     

       92
       92
       +
       

     

       93
       93
       +
       	if err := closeDatabase(app.content); err != nil {

     

       94
       94
       +
       		return err

     

       95
       95
       +
       	}

     

       96
       96
       +
       

     

       97
       97
       +
       	if err := app.backfill.Stop(ctx); err != nil {

     

       98
       98
       +
       		return err

     

       99
       99
       +
       	}

     

       100
       100
       +
       

     

       101
       101
       +
       	return nil

     

       102
       102
       +
       }

     

       103
       103
       +
       

     

       104
       104
       +
       func main() {

     

       105
       105
       +
       	ctx, cancel := signal.NotifyContext(context.TODO(), syscall.SIGINT, syscall.SIGTERM)

     

       106
       106
       +
       	defer cancel()

     

       107
       107
       +
       

     

       108
       108
       +
       	app := NewApp()

     

       109
       109
       +
       	if err := app.Start(ctx); err != nil {

     

       110
       110
       +
       		slog.Error("failed to start backfiller", "err", err)

     

       111
       111
       +
       	}

     

       112
       112
       +
       

     

       113
       113
       +
       	<-ctx.Done()

     

       114
       114
       +
       	slog.Info("shutting down")

     

       115
       115
       +
       

     

       116
       116
       +
       	endctx, cancel := context.WithTimeout(context.TODO(), time.Second*15)

     

       117
       117
       +
       	defer cancel()

     

       118
       118
       +
       

     

       119
       119
       +
       	if err := app.Stop(endctx); err != nil {

     

       120
       120
       +
       		slog.Error("error during shutdown", "err", err)

     

       121
       121
       +
       	}

     

       122
       122
       +
       }

+13

cmd/backfiller2/models.go

···

       1
       1
       +
       package main

     

       2
       2
       +
       

     

       3
       3
       +
       type Account struct{}

     

       4
       4
       +
       type Profile struct{}

     

       5
       5
       +
       type List struct{}

     

       6
       6
       +
       type Labeler struct{}

     

       7
       7
       +
       type Feedgen struct {

     

       8
       8
       +
       	ID          uint `gorm:"primaryKey"`

     

       9
       9
       +
       	DisplayName string

     

       10
       10
       +
       }

     

       11
       11
       +
       type StarterPack struct{}

     

       12
       12
       +
       type Verification struct{}

     

       13
       13
       +
       type Lexicon struct{}