commit 8dfaab73fb3c320ad175fa42c2c4f3cc2fde37aa · edavis.dev/monarch

-26

cmd/backfiller/backend.go

···

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       package main

     

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       import (

     

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       	"sync"

     

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       -
       

     

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

     

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       	"gorm.io/gorm"

     

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       )

     

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       type Backend struct {

     

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       	state *gorm.DB

     

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       	data  *gorm.DB

     

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       	bf    *backfill.Backfiller

     

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       	firehoseLk  sync.Mutex

     

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       	firehoseSeq string

     

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       	reposLk     sync.Mutex

     

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       	reposSeq    string

     

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       }

     

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       func NewBackend(state, data *gorm.DB) *Backend {

     

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       	return &Backend{

     

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       		state: state,

     

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       		data:  data,

     

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       	}

     

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       }

+15

cmd/backfiller/backfill.go

···

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       package main

     

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

     

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       +
       

     

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

     

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       	opts := &backfill.BackfillOptions{

     

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       		ParallelBackfills:     10,

     

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       		ParallelRecordCreates: 1,

     

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       		NSIDFilter:            "",

     

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       		SyncRequestsPerSecond: 5,

     

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

     

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       	}

     

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

     

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       }

+71

cmd/backfiller/census.go

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       package main

     

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       import (

     

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       	"context"

     

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       	"log/slog"

     

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       +
       

     

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

     

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

     

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

     

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       )

     

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       type CensusService struct {

     

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       	cursor   *CursorService

     

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       	backfill *backfill.Backfiller

     

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       }

     

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       type jobMaker interface {

     

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

     

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       }

     

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

     

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       	return &CensusService{

     

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       		cursor:   cursorSvc,

     

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       		backfill: backfillSvc,

     

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       	}

     

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       +
       }

     

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       +
       

     

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

     

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       	xrpcc := &xrpc.Client{

     

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

     

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       	}

     

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       +
       

     

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

     

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       	if !ok {

     

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

     

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       		return

     

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       	}

     

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       +
       

     

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

     

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       	for {

     

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       		select {

     

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       		case <-ctx.Done():

     

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       			slog.Info("stopping repo census")

     

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       			return

     

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       		default:

     

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       		}

     

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

     

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

     

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       		if err != nil {

     

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

     

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       			return

     

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       		}

     

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       +
       

     

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       		for _, repo := range res.Repos {

     

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

     

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       			if err != nil {

     

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

     

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       			}

     

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       		}

     

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

     

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       			cs.cursor.reposLk.Lock()

     

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       			curs = *res.Cursor

     

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       			cs.cursor.reposSeq = curs

     

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       			cs.cursor.reposLk.Unlock()

     

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       		} else {

     

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       			break

     

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       		}

     

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       	}

     

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       }

+74 -31

cmd/backfiller/cursors.go

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       import (

     

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       	"context"

     

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       	"errors"

     

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       	"fmt"

     

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       	"log/slog"

     

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       	"strconv"

     

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       	"sync"

     

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       	"time"

     

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       	"gorm.io/gorm"

     

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       )

     

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       type cursorRecord struct {

     

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       	ID  uint   `gorm:"primaryKey"`

     

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       	Key string `gorm:"unique"`

     

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       	ID  uint `gorm:"primaryKey"`

     

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       	Key string

     

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       	Val string

     

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       }

     

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       func (b *Backend) LoadCursor(key string) (string, error) {

     

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       type CursorService struct {

     

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       	store *gorm.DB

     

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       +
       

     

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       	firehoseLk  sync.Mutex

     

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       	firehoseSeq string

     

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       +
       

     

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       	reposLk  sync.Mutex

     

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       	reposSeq string

     

       28
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       +
       }

     

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       +
       

     

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

     

       31
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       	store.AutoMigrate(&cursorRecord{})

     

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       +
       

     

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       	var rec cursorRecord

     

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       	store.First(&rec, 1)

     

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       	if rec.ID == 0 {

     

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

     

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       	}

     

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       +
       

     

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       	store.First(&rec, 2)

     

       40
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       	if rec.ID == 0 {

     

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

     

       42
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       +
       	}

     

       43
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       +
       

     

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       	return &CursorService{

     

       45
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       		store: store,

     

       46
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       +
       	}

     

       47
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       +
       }

     

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       +
       

     

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

     

       20
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       	var rec cursorRecord

     

       21
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       	if err := b.state.Where("key = ?", key).First(&rec).Error; err != nil {

     

       22
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       		if errors.Is(err, gorm.ErrRecordNotFound) {

     

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       			b.state.Create(&cursorRecord{Key: key, Val: ""})

     

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       		}

     

       25
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       		return "", err

     

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

     

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

     

       26
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       	}

     

       27
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       	return rec.Val, nil

     

       28
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       }

     

       29
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       30
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       func (b *Backend) FlushCursors() error {

     

       31
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       -
       	sl := slog.With("source", "flushCursors")

     

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

     

       58
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       	cs.firehoseLk.Lock()

     

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

     

       60
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       	cs.firehoseSeq = val

     

       61
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       	cs.firehoseLk.Unlock()

     

       62
       62
       +
       }

     

       63
       63
       +
       

     

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

     

       65
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       	cs.reposLk.Lock()

     

       66
       66
       +
       	cs.reposSeq = value

     

       67
       67
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       	cs.reposLk.Unlock()

     

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       +
       }

     

       32
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       33
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       	b.firehoseLk.Lock()

     

       34
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       	sl.Info("persisting firehose cursor", "cursor", b.firehoseSeq)

     

       35
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       -
       	if err := b.state.Model(&cursorRecord{}).Where("key = ?", "firehose").Update("val", b.firehoseSeq).Error; err != nil {

     

       36
       36
       -
       		return fmt.Errorf("failed to persist firehose cursor: %w", err)

     

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

     

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

     

       72
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       		lk.Lock()

     

       73
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       +
       		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
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       		lk.Unlock()

     

       77
       77
       +
       		return nil

     

       37
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       	}

     

       38
       38
       -
       	b.firehoseLk.Unlock()

     

       39
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       40
       40
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       	b.reposLk.Lock()

     

       41
       41
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       	sl.Info("persisting repos cursor", "cursor", b.reposSeq)

     

       42
       42
       -
       	if err := b.state.Model(&cursorRecord{}).Where("key = ?", "repos").Update("val", b.reposSeq).Error; err != nil {

     

       43
       43
       -
       		return fmt.Errorf("failed to persist repos cursor: %w", err)

     

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

     

       81
       81
       +
       		return err

     

       44
       82
        
       	}

     

       45
       45
       -
       	b.reposLk.Unlock()

     

       83
       83
       +
       

     

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

     

       85
       85
       +
       		return err

     

       86
       86
       +
       	}

     

       46
       87
        
       

     

       47
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       	return nil

     

       48
       89
        
       }

     

       49
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       50
       50
       -
       func (b *Backend) SyncCursors(ctx context.Context) error {

     

       51
       51
       -
       	for range time.Tick(time.Second * 5) {

     

       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 {

     

       52
       96
        
       		select {

     

       53
       97
        
       		case <-ctx.Done():

     

       54
       54
       -
       			return nil

     

       55
       55
       -
       		default:

     

       56
       56
       -
       			//

     

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

     

       99
       99
       +
       			return

     

       100
       100
       +
       		case <-t.C:

     

       57
       101
        
       		}

     

       58
       102
        
       

     

       59
       59
       -
       		if err := b.FlushCursors(); err != nil {

     

       60
       60
       -
       			slog.Error("failed to flush cursors", "err", err)

     

       61
       61
       -
       			return fmt.Errorf("failed to flush cursors: %w", err)

     

       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

     

       62
       107
        
       		}

     

       63
       108
        
       	}

     

       64
       64
       -
       

     

       65
       65
       -
       	return nil

     

       66
       109
        
       }

-27

cmd/backfiller/database.go

···

       1
       1
        
       package main

     

       2
       2
        
       

     

       3
       3
        
       import (

     

       4
       4
       -
       	"fmt"

     

       5
       4
        
       	"log"

     

       6
       5
        
       	"log/slog"

     

       7
       6
        
       	"os"

     
···

       30
       29
        
       	db.Exec("PRAGMA journal_mode=WAL")

     

       31
       30
        
       	return db

     

       32
       31
        
       }

     

       33
       33
       -
       

     

       34
       34
       -
       func (b *Backend) CleanlyClose() error {

     

       35
       35
       -
       	closeDb := func(db *gorm.DB) error {

     

       36
       36
       -
       		if err := db.Exec("PRAGMA wal_checkpoint(TRUNCATE)").Error; err != nil {

     

       37
       37
       -
       			return fmt.Errorf("failed checkpointing the WAL: %w", err)

     

       38
       38
       -
       		}

     

       39
       39
       -
       		rawDb, err := db.DB()

     

       40
       40
       -
       		if err != nil {

     

       41
       41
       -
       			return fmt.Errorf("failed getting underlying DB connection: %w", err)

     

       42
       42
       -
       		}

     

       43
       43
       -
       		if err := rawDb.Close(); err != nil {

     

       44
       44
       -
       			return fmt.Errorf("failed closing underlying DB connection: %w", err)

     

       45
       45
       -
       		}

     

       46
       46
       -
       		return nil

     

       47
       47
       -
       	}

     

       48
       48
       -
       

     

       49
       49
       -
       	if err := closeDb(b.state); err != nil {

     

       50
       50
       -
       		return fmt.Errorf("failed to close state database: %w", err)

     

       51
       51
       -
       	}

     

       52
       52
       -
       

     

       53
       53
       -
       	if err := closeDb(b.data); err != nil {

     

       54
       54
       -
       		return fmt.Errorf("failed to close content database: %w", err)

     

       55
       55
       -
       	}

     

       56
       56
       -
       

     

       57
       57
       -
       	return nil

     

       58
       58
       -
       }

+25

cmd/backfiller/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
       +
       }

+19 -38

cmd/backfiller/handlers.go

···

       4
       4
        
       	"bytes"

     

       5
       5
        
       	"context"

     

       6
       6
        
       	"fmt"

     

       7
       7
       -
       	"log/slog"

     

       8
       8
       -
       	"strconv"

     

       9
       7
        
       	"strings"

     

       10
       8
        
       

     

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

     

       12
       9
        
       	appbsky "github.com/bluesky-social/indigo/api/bsky"

     

       13
       10
        
       	"github.com/ipfs/go-cid"

     

       11
       11
       +
       	"gorm.io/gorm"

     

       14
       12
        
       )

     

       15
       13
        
       

     

       16
       16
       -
       type commitHandler func(context.Context, *comatproto.SyncSubscribeRepos_Commit) error

     

       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

     

       17
       22
        
       

     

       18
       18
       -
       func (b *Backend) RepoCommitHandler(

     

       19
       19
       -
       	ctx context.Context, evt *comatproto.SyncSubscribeRepos_Commit,

     

       20
       20
       -
       ) error {

     

       21
       21
       -
       	select {

     

       22
       22
       -
       	case <-ctx.Done():

     

       23
       23
       -
       		return nil

     

       24
       24
       -
       	default:

     

       25
       25
       -
       		//

     

       23
       23
       +
       	return &HandlerService{

     

       24
       24
       +
       		store: store,

     

       26
       25
        
       	}

     

       27
       27
       -
       

     

       28
       28
       -
       	b.firehoseLk.Lock()

     

       29
       29
       -
       	b.firehoseSeq = strconv.Itoa(int(evt.Seq))

     

       30
       30
       -
       	b.firehoseLk.Unlock()

     

       31
       31
       -
       

     

       32
       32
       -
       	return b.bf.HandleEvent(ctx, evt)

     

       33
       26
        
       }

     

       34
       27
        
       

     

       35
       35
       -
       type handleOpCreateUpdate func(context.Context, string, string, string, *[]byte, *cid.Cid) error

     

       36
       36
       -
       type handleOpDelete func(context.Context, string, string, string) error

     

       37
       37
       -
       

     

       38
       38
       -
       func (b *Backend) HandleCreateOp(ctx context.Context, repo, rev, path string, rec *[]byte, cid *cid.Cid) error {

     

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

     

       39
       29
        
       	if !strings.HasPrefix(path, "app.bsky.feed.generator/") {

     

       40
       30
        
       		return nil

     

       41
       31
        
       	}

     

       42
       42
       -
       

     

       43
       43
       -
       	sl := slog.With("source", "HandleCreateOp")

     

       44
       32
        
       

     

       45
       33
        
       	var out appbsky.FeedGenerator

     

       46
       34
        
       	if err := out.UnmarshalCBOR(bytes.NewReader(*rec)); err != nil {

     

       47
       47
       -
       		sl.Error("failed to unmarshal record", "err", err)

     

       48
       48
       -
       		return fmt.Errorf("failed to unmarshal record: %w", err)

     

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

     

       49
       36
        
       	}

     

       50
       37
        
       

     

       51
       51
       -
       	feedgen := &FeedGenerator{

     

       52
       52
       -
       		AtUri:               fmt.Sprintf("at://%s/%s", repo, path),

     

       53
       53
       -
       		DisplayName:         out.DisplayName,

     

       54
       54
       -
       		FeedService:         out.Did,

     

       55
       55
       -
       		CreatedAt:           out.CreatedAt,

     

       56
       56
       -
       		Description:         out.Description,

     

       57
       57
       -
       		ContentMode:         out.ContentMode,

     

       58
       58
       -
       		AcceptsInteractions: out.AcceptsInteractions,

     

       38
       38
       +
       	feedgen := Feedgen{

     

       39
       39
       +
       		DisplayName: out.DisplayName,

     

       59
       40
        
       	}

     

       60
       41
        
       

     

       61
       61
       -
       	if err := b.data.Model(&FeedGenerator{}).Create(feedgen).Error; err != nil {

     

       62
       62
       -
       		return fmt.Errorf("error adding feedgen to database: %w", err)

     

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

     

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

     

       63
       44
        
       	}

     

       64
       45
        
       

     

       65
       46
        
       	return nil

     

       66
       47
        
       }

     

       67
       48
        
       

     

       68
       68
       -
       func (b *Backend) HandleUpdateOp(ctx context.Context, repo, rev, path string, rec *[]byte, cid *cid.Cid) error {

     

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

     

       69
       50
        
       	return nil

     

       70
       51
        
       }

     

       71
       52
        
       

     

       72
       72
       -
       func (b *Backend) HandleDeleteOp(ctx context.Context, repo, rev, path string) error {

     

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

     

       73
       54
        
       	return nil

     

       74
       55
        
       }

+75 -107

cmd/backfiller/main.go

···

       2
       2
        
       

     

       3
       3
        
       import (

     

       4
       4
        
       	"context"

     

       5
       5
       +
       	"fmt"

     

       5
       6
        
       	"log/slog"

     

       6
       6
       -
       	"net/http"

     

       7
       7
       -
       	"os"

     

       8
       7
        
       	"os/signal"

     

       9
       8
        
       	"syscall"

     

       10
       9
        
       	"time"

     
···

       13
       12
        
       	"github.com/bluesky-social/indigo/backfill"

     

       14
       13
        
       	"github.com/bluesky-social/indigo/events"

     

       15
       14
        
       	"github.com/bluesky-social/indigo/events/schedulers/parallel"

     

       16
       16
       -
       

     

       17
       15
        
       	"github.com/gorilla/websocket"

     

       18
       16
        
       	"gorm.io/gorm"

     

       19
       17
        
       )

     

       20
       18
        
       

     

       21
       21
       -
       func NewBackfiller(

     

       22
       22
       -
       	db *gorm.DB, create handleOpCreateUpdate, update handleOpCreateUpdate, delete handleOpDelete,

     

       23
       23
       -
       ) *backfill.Backfiller {

     

       24
       24
       -
       	opts := &backfill.BackfillOptions{

     

       25
       25
       -
       		// ParallelBackfills:     50,

     

       26
       26
       -
       		// ParallelRecordCreates: 25,

     

       27
       27
       -
       		// SyncRequestsPerSecond: 25,

     

       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
       -
       		ParallelBackfills:     10,

     

       30
       30
       -
       		ParallelRecordCreates: 1, // sqlite

     

       31
       31
       -
       		SyncRequestsPerSecond: 5,

     

       29
       29
       +
       func NewApp() *App {

     

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

     

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

     

       32
       32
        
       

     

       33
       33
       -
       		// NSIDFilter: "app.bsky.feed.generator",

     

       34
       34
       -
       		RelayHost: "https://bsky.network",

     

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

     

       34
       34
       +
       

     

       35
       35
       +
       	return &App{

     

       36
       36
       +
       		state:   stateDatabase,

     

       37
       37
       +
       		content: contentDatabase,

     

       35
       38
        
       	}

     

       39
       39
       +
       }

     

       36
       40
        
       

     

       37
       37
       -
       	return backfill.NewBackfiller(

     

       38
       38
       -
       		"backfills",

     

       39
       39
       -
       		backfill.NewGormstore(db),

     

       40
       40
       -
       		create, update, delete,

     

       41
       41
       -
       		opts,

     

       42
       42
       -
       	)

     

       43
       43
       -
       }

     

       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()

     

       44
       49
        
       

     

       45
       45
       -
       func NewFirehose(ctx context.Context, cursor string) *websocket.Conn {

     

       46
       46
       -
       	sl := slog.With("source", "firehose")

     

       47
       47
       -
       	subscribeUrl := "wss://bsky.network/xrpc/com.atproto.sync.subscribeRepos"

     

       48
       48
       -
       	if cursor != "" {

     

       49
       49
       -
       		subscribeUrl += "?cursor=" + cursor

     

       50
       50
       -
       	}

     

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

     

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

     

       51
       52
        
       

     

       52
       52
       -
       	conn, _, err := websocket.DefaultDialer.DialContext(ctx, subscribeUrl, http.Header{

     

       53
       53
       -
       		"User-Agent": []string{"backfiller/0.1 (@edavis.dev)"},

     

       54
       54
       -
       	})

     

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

     

       55
       54
        
       	if err != nil {

     

       56
       56
       -
       		sl.Error("failed to connect to relay", "err", err)

     

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

     

       57
       56
        
       	}

     

       57
       57
       +
       	app.wsconn = wsconn

     

       58
       58
        
       

     

       59
       59
       -
       	return conn

     

       60
       60
       -
       }

     

       61
       61
       -
       

     

       62
       62
       -
       func NewScheduler(

     

       63
       63
       -
       	ctx context.Context, commitCallback commitHandler,

     

       64
       64
       -
       ) *parallel.Scheduler {

     

       65
       59
        
       	rsc := events.RepoStreamCallbacks{

     

       66
       60
        
       		RepoCommit: func(evt *comatproto.SyncSubscribeRepos_Commit) error {

     

       67
       67
       -
       			return commitCallback(ctx, evt)

     

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

     

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

     

       68
       63
        
       		},

     

       64
       64
       +
       		// TODO account

     

       65
       65
       +
       		// TODO identity

     

       69
       66
        
       	}

     

       70
       67
        
       

     

       71
       71
       -
       	return parallel.NewScheduler(16, 100, "firehose", rsc.EventHandler)

     

       72
       72
       -
       }

     

       73
       73
       -
       

     

       74
       74
       -
       func main() {

     

       75
       75
       -
       	sl := slog.With("source", "backfiller")

     

       76
       76
       -
       

     

       77
       77
       -
       	streamClosed := make(chan struct{})

     

       78
       78
       -
       	streamCtx, streamCancel := context.WithCancel(context.Background())

     

       79
       79
       -
       

     

       80
       80
       -
       	stateDb := NewDatabase("state.db")

     

       81
       81
       -
       	stateDb.AutoMigrate(&backfill.GormDBJob{})

     

       82
       82
       -
       	stateDb.AutoMigrate(&cursorRecord{})

     

       83
       83
       -
       

     

       84
       84
       -
       	contentDb := NewDatabase("database.db")

     

       85
       85
       -
       	contentDb.AutoMigrate(&FeedGenerator{})

     

       86
       86
       -
       

     

       87
       87
       -
       	backend := NewBackend(stateDb, contentDb)

     

       88
       88
       -
       

     

       89
       89
       -
       	bf := NewBackfiller(stateDb, backend.HandleCreateOp, backend.HandleUpdateOp, backend.HandleDeleteOp)

     

       90
       90
       -
       	go bf.Start()

     

       91
       91
       -
       

     

       92
       92
       -
       	// attach the backfiller to the backend so the curors, the pump,

     

       93
       93
       -
       	// and the commit callback can use it

     

       94
       94
       -
       	backend.bf = bf

     

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

     

       95
       69
        
       

     

       96
       96
       -
       	go backend.SyncCursors(streamCtx)

     

       97
       97
       -
       

     

       98
       98
       -
       	cursor, err := backend.LoadCursor("firehose")

     

       99
       99
       -
       	if err != nil {

     

       100
       100
       -
       		sl.Error("failed loading firehose cursor", "err", err)

     

       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)

     

       101
       72
        
       	}

     

       102
       102
       -
       	conn := NewFirehose(streamCtx, cursor)

     

       103
       73
        
       

     

       104
       104
       -
       	sched := NewScheduler(streamCtx, backend.RepoCommitHandler)

     

       105
       105
       -
       	go func() {

     

       106
       106
       -
       		if err := events.HandleRepoStream(streamCtx, conn, sched, sl); err != nil {

     

       107
       107
       -
       			sl.Error("failed to start scheduler", "err", err)

     

       108
       108
       -
       		}

     

       109
       109
       -
       		close(streamClosed)

     

       110
       110
       -
       	}()

     

       74
       74
       +
       	return nil

     

       75
       75
       +
       }

     

       111
       76
        
       

     

       112
       112
       -
       	go func() {

     

       113
       113
       -
       		if err := backend.PumpRepos(streamCtx); err != nil {

     

       114
       114
       -
       			sl.Error("failed pumping repos", "err", err)

     

       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)

     

       115
       85
        
       		}

     

       116
       116
       -
       	}()

     

       86
       86
       +
       		return nil

     

       87
       87
       +
       	}

     

       117
       88
        
       

     

       118
       118
       -
       	quit := make(chan struct{})

     

       119
       119
       -
       	exitSignals := make(chan os.Signal, 1)

     

       120
       120
       -
       	signal.Notify(exitSignals, syscall.SIGINT, syscall.SIGTERM)

     

       121
       121
       -
       	go func() {

     

       122
       122
       -
       		select {

     

       123
       123
       -
       		case sig := <-exitSignals:

     

       124
       124
       -
       			sl.Info("received OS exit signal", "signal", sig)

     

       125
       125
       -
       		case <-streamClosed:

     

       126
       126
       -
       			//

     

       127
       127
       -
       		}

     

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

     

       90
       90
       +
       		return err

     

       91
       91
       +
       	}

     

       128
       92
        
       

     

       129
       129
       -
       		conn.Close()

     

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

     

       94
       94
       +
       		return err

     

       95
       95
       +
       	}

     

       130
       96
        
       

     

       131
       131
       -
       		streamCancel()

     

       132
       132
       -
       		<-streamClosed

     

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

     

       98
       98
       +
       		return err

     

       99
       99
       +
       	}

     

       133
       100
        
       

     

       134
       134
       -
       		time.Sleep(time.Millisecond * 100)

     

       101
       101
       +
       	return nil

     

       102
       102
       +
       }

     

       135
       103
        
       

     

       136
       136
       -
       		endctx, cancel := context.WithTimeout(context.TODO(), time.Minute)

     

       137
       137
       -
       		defer cancel()

     

       138
       138
       -
       		bf.Stop(endctx)

     

       104
       104
       +
       func main() {

     

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

     

       106
       106
       +
       	defer cancel()

     

       139
       107
        
       

     

       140
       140
       -
       		close(quit)

     

       141
       141
       -
       	}()

     

       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
       +
       	}

     

       142
       112
        
       

     

       143
       143
       -
       	<-quit

     

       113
       113
       +
       	<-ctx.Done()

     

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

     

       144
       115
        
       

     

       145
       145
       -
       	sl.Info("flushing cursors")

     

       146
       146
       -
       	if err := backend.FlushCursors(); err != nil {

     

       147
       147
       -
       		sl.Error("failed to flush cursors on close", "err", err)

     

       148
       148
       -
       	}

     

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

     

       117
       117
       +
       	defer cancel()

     

       149
       118
        
       

     

       150
       150
       -
       	sl.Info("closing databases")

     

       151
       151
       -
       	if err := backend.CleanlyClose(); err != nil {

     

       152
       152
       -
       		sl.Error("failed to close databases", "err", err)

     

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

     

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

     

       153
       121
        
       	}

     

       154
       122
        
       }

+10 -9

cmd/backfiller/models.go

···

       1
       1
        
       package main

     

       2
       2
        
       

     

       3
       3
       -
       type FeedGenerator struct {

     

       4
       4
       -
       	ID                  uint   `gorm:"primaryKey"`

     

       5
       5
       -
       	AtUri               string `gorm:"unique"`

     

       6
       6
       -
       	DisplayName         string

     

       7
       7
       -
       	FeedService         string

     

       8
       8
       -
       	Description         *string

     

       9
       9
       -
       	ContentMode         *string

     

       10
       10
       -
       	AcceptsInteractions *bool

     

       11
       11
       -
       	CreatedAt           string

     

       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

     

       12
       10
        
       }

     

       11
       11
       +
       type StarterPack struct{}

     

       12
       12
       +
       type Verification struct{}

     

       13
       13
       +
       type Lexicon struct{}

-69

cmd/backfiller/pump.go

···

       1
       1
       -
       package main

     

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       import (

     

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       	"context"

     

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       	"fmt"

     

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       	"log/slog"

     

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

     

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

     

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

     

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       )

     

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       type jobMaker interface {

     

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

     

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       }

     

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       func (b *Backend) PumpRepos(ctx context.Context) error {

     

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       	sl := slog.With("source", "pumpRepos")

     

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       	bf := b.bf

     

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       	xrpcc := &xrpc.Client{

     

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

     

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       	}

     

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       	jmstore, ok := bf.Store.(jobMaker)

     

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       	if !ok {

     

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       		return fmt.Errorf("configured job store doesn't support random job creation")

     

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       	}

     

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       	curs, err := b.LoadCursor("repos")

     

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       	if err != nil {

     

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       		sl.Error("failed to load repos cursor", "err", err)

     

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       	}

     

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       	for {

     

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       		select {

     

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       		case <-ctx.Done():

     

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       			sl.Info("stopping repo pump")

     

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       			return nil

     

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       		default:

     

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       			//

     

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       		}

     

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       		sl.Info("listing repos", "cursor", curs)

     

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

     

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       		if err != nil {

     

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       			return fmt.Errorf("error listing repos: %w", err)

     

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       		}

     

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       		for _, repo := range res.Repos {

     

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

     

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       			if err != nil {

     

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       				sl.Warn("failed to create backfill job", "err", err)

     

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       				continue

     

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       			}

     

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       		}

     

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

     

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       			curs = *res.Cursor

     

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       			b.reposLk.Lock()

     

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       			b.reposSeq = curs

     

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       			b.reposLk.Unlock()

     

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       		} else {

     

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       			break

     

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       		}

     

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       	}

     

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       	return nil

     

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       }