patch of appview: add basic issue indexer (wip) · round #7 · pull #494 · tangled.org/core

.gitignore

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       .env

     

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       *.rdb

     

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       .envrc

     

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       *.bleve

     

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       # Created if following hacking.md

     

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       genjwks.out

     

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       /nix/vm-data

+20

appview/indexer/base36/base36.go

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       // mostly copied from gitea/modules/indexer/internal/base32

     

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       package base36

     

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       import (

     

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       	"fmt"

     

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       	"strconv"

     

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       )

     

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       func Encode(i int64) string {

     

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       	return strconv.FormatInt(i, 36)

     

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       }

     

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       func Decode(s string) (int64, error) {

     

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       	i, err := strconv.ParseInt(s, 36, 64)

     

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       	if err != nil {

     

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       		return 0, fmt.Errorf("invalid base36 integer %q: %w", s, err)

     

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       	}

     

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       	return i, nil

     

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       }

+58

appview/indexer/bleve/batch.go

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       // Copyright 2021 The Gitea Authors. All rights reserved.

     

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       // SPDX-License-Identifier: MIT

     

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       package bleveutil

     

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       import (

     

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       	"github.com/blevesearch/bleve/v2"

     

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       )

     

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       // FlushingBatch is a batch of operations that automatically flushes to the

     

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       // underlying index once it reaches a certain size.

     

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       type FlushingBatch struct {

     

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       	maxBatchSize int

     

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       	batch        *bleve.Batch

     

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       	index        bleve.Index

     

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       }

     

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       // NewFlushingBatch creates a new flushing batch for the specified index. Once

     

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       // the number of operations in the batch reaches the specified limit, the batch

     

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       // automatically flushes its operations to the index.

     

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       func NewFlushingBatch(index bleve.Index, maxBatchSize int) *FlushingBatch {

     

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       	return &FlushingBatch{

     

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       		maxBatchSize: maxBatchSize,

     

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       		batch:        index.NewBatch(),

     

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       		index:        index,

     

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       	}

     

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       }

     

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       // Index add a new index to batch

     

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       func (b *FlushingBatch) Index(id string, data any) error {

     

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       	if err := b.batch.Index(id, data); err != nil {

     

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       		return err

     

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       	}

     

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       	return b.flushIfFull()

     

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       }

     

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       // Delete add a delete index to batch

     

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       func (b *FlushingBatch) Delete(id string) error {

     

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       	b.batch.Delete(id)

     

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       	return b.flushIfFull()

     

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       }

     

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       +
       

     

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       func (b *FlushingBatch) flushIfFull() error {

     

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       	if b.batch.Size() < b.maxBatchSize {

     

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       		return nil

     

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       	}

     

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       	return b.Flush()

     

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       }

     

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       // Flush submit the batch and create a new one

     

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       func (b *FlushingBatch) Flush() error {

     

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       	err := b.index.Batch(b.batch)

     

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       	if err != nil {

     

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       		return err

     

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       	}

     

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       	b.batch = b.index.NewBatch()

     

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       	return nil

     

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       }

+32

appview/indexer/indexer.go

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       package indexer

     

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       import (

     

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       	"context"

     

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       	"log/slog"

     

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       	"tangled.org/core/appview/db"

     

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       	issues_indexer "tangled.org/core/appview/indexer/issues"

     

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       	"tangled.org/core/appview/notify"

     

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       	tlog "tangled.org/core/log"

     

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       )

     

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       type Indexer struct {

     

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       	Issues *issues_indexer.Indexer

     

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       	logger *slog.Logger

     

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       	notify.BaseNotifier

     

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       }

     

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       +
       

     

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       func New(logger *slog.Logger) *Indexer {

     

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       	return &Indexer {

     

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       		issues_indexer.NewIndexer("indexes.bleve"),

     

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       		logger,

     

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       		notify.BaseNotifier{},

     

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       	}

     

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       }

     

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       // Init initializes all indexers

     

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       func (ix *Indexer) Init(ctx context.Context, db *db.DB) error {

     

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       	ctx = tlog.IntoContext(ctx, ix.logger)

     

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       	ix.Issues.Init(ctx, db)

     

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       	return nil

     

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       }

+197

appview/indexer/issues/indexer.go

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       // heavily inspired by gitea's model (basically copy-pasted)

     

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       package issues_indexer

     

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       import (

     

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       	"context"

     

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       	"errors"

     

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       	"os"

     

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       	"github.com/blevesearch/bleve/v2"

     

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       	"github.com/blevesearch/bleve/v2/index/upsidedown"

     

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       	"github.com/blevesearch/bleve/v2/search/query"

     

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       	"tangled.org/core/appview/db"

     

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       	"tangled.org/core/appview/indexer/base36"

     

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       	"tangled.org/core/appview/indexer/bleve"

     

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       	"tangled.org/core/appview/models"

     

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       	"tangled.org/core/appview/pagination"

     

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       	tlog "tangled.org/core/log"

     

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       )

     

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       type Indexer struct {

     

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       	indexer bleve.Index

     

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       	path    string

     

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       }

     

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       +
       

     

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       func NewIndexer(indexDir string) *Indexer {

     

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       	return &Indexer{

     

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       		path: indexDir,

     

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       	}

     

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       }

     

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       // Init initializes the indexer

     

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       func (ix *Indexer) Init(ctx context.Context, e db.Execer) {

     

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       	l := tlog.FromContext(ctx)

     

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       	existed, err := ix.intialize(ctx)

     

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       	if err != nil {

     

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       		l.Error("failed to initialize issue indexer", "err", err)

     

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       	}

     

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       	if !existed {

     

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       		l.Debug("Populating the issue indexer")

     

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       		err := PopulateIndexer(ctx, ix, e)

     

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       		if err != nil {

     

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       			l.Error("failed to populate issue indexer", "err", err)

     

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       		}

     

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       	}

     

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       	l.Info("Initialized the issue indexer")

     

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       }

     

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       func (ix *Indexer) intialize(ctx context.Context) (bool, error) {

     

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       	if ix.indexer != nil {

     

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       		return false, errors.New("indexer is already initialized")

     

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       	}

     

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       	indexer, err := openIndexer(ctx, ix.path)

     

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       	if err != nil {

     

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       		return false, err

     

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       	}

     

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       	if indexer != nil {

     

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       		ix.indexer = indexer

     

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       		return true, nil

     

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       	}

     

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       	mapping := bleve.NewIndexMapping()

     

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       	indexer, err = bleve.New(ix.path, mapping)

     

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       	if err != nil {

     

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       		return false, err

     

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       	}

     

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       	ix.indexer = indexer

     

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       	return false, nil

     

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       }

     

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       func openIndexer(ctx context.Context, path string) (bleve.Index, error) {

     

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       	l := tlog.FromContext(ctx)

     

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       	indexer, err := bleve.Open(path)

     

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       	if err != nil {

     

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       		if errors.Is(err, upsidedown.IncompatibleVersion) {

     

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       			l.Info("Indexer was built with a previous version of bleve, deleting and rebuilding")

     

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       			return nil, os.RemoveAll(path)

     

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       		}

     

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       		return nil, nil

     

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       	}

     

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       	return indexer, nil

     

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       }

     

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       func PopulateIndexer(ctx context.Context, ix *Indexer, e db.Execer) error {

     

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       	l := tlog.FromContext(ctx)

     

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       	count := 0

     

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       	err := pagination.IterateAll(

     

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       		func(page pagination.Page) ([]models.Issue, error) {

     

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       			return db.GetIssuesPaginated(e, page)

     

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       		},

     

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       		func(issues []models.Issue) error {

     

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       			count += len(issues)

     

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       			return ix.Index(ctx, issues...)

     

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       		},

     

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       	)

     

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       	l.Info("issues indexed", "count", count)

     

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       	return err

     

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       }

     

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       // issueData data stored and will be indexed

     

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       type issueData struct {

     

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       	ID      int64  `json:"id"`

     

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       	RepoAt  string `json:"repo_at"`

     

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       	IssueID int    `json:"issue_id"`

     

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       	Title   string `json:"title"`

     

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       +
       	Body    string `json:"body"`

     

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       +
       

     

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       	IsOpen   bool               `json:"is_open"`

     

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       	Comments []IssueCommentData `json:"comments"`

     

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       }

     

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       +
       

     

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       func makeIssueData(issue *models.Issue) *issueData {

     

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       	return &issueData{

     

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       +
       		ID:      issue.Id,

     

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       		RepoAt:  issue.RepoAt.String(),

     

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       		IssueID: issue.IssueId,

     

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       		Title:   issue.Title,

     

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       +
       		Body:    issue.Body,

     

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       +
       		IsOpen:  issue.Open,

     

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       +
       	}

     

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       +
       }

     

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       +
       

     

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       type IssueCommentData struct {

     

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       +
       	Body string `json:"body"`

     

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       +
       }

     

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       +
       

     

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       type SearchResult struct {

     

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       +
       	Hits  []int64

     

       131
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       +
       	Total uint64

     

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       +
       }

     

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       +
       

     

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       const maxBatchSize = 20

     

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       +
       

     

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       func (ix *Indexer) Index(ctx context.Context, issues ...models.Issue) error {

     

       137
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       +
       	batch := bleveutil.NewFlushingBatch(ix.indexer, maxBatchSize)

     

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       	for _, issue := range issues {

     

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       		issueData := makeIssueData(&issue)

     

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       +
       		if err := batch.Index(base36.Encode(issue.Id), issueData); err != nil {

     

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       +
       			return err

     

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       +
       		}

     

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       +
       	}

     

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       +
       	return batch.Flush()

     

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       +
       }

     

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       +
       

     

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       // Search searches for issues

     

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       +
       func (ix *Indexer) Search(ctx context.Context, opts models.IssueSearchOptions) (*SearchResult, error) {

     

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       +
       	var queries []query.Query

     

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       +
       

     

       151
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       +
       	if opts.Keyword != "" {

     

       152
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       +
       		queries = append(queries, bleve.NewDisjunctionQuery(

     

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       +
       			matchAndQuery(opts.Keyword, "title"),

     

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       +
       			matchAndQuery(opts.Keyword, "body"),

     

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       +
       		))

     

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       +
       	}

     

       157
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       +
       	queries = append(queries, keywordFieldQuery(opts.RepoAt, "repo_at"))

     

       158
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       +
       	queries = append(queries, boolFieldQuery(opts.IsOpen, "is_open"))

     

       159
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       +
       	// TODO: append more queries

     

       160
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       +
       

     

       161
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       +
       	var indexerQuery query.Query = bleve.NewConjunctionQuery(queries...)

     

       162
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       +
       	searchReq := bleve.NewSearchRequestOptions(indexerQuery, opts.Page.Limit, opts.Page.Offset, false)

     

       163
       163
       +
       	res, err := ix.indexer.SearchInContext(ctx, searchReq)

     

       164
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       +
       	if err != nil {

     

       165
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       +
       		return nil, nil

     

       166
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       +
       	}

     

       167
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       +
       	ret := &SearchResult{

     

       168
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       +
       		Total: res.Total,

     

       169
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       +
       		Hits:  make([]int64, len(res.Hits)),

     

       170
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       +
       	}

     

       171
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       +
       	for i, hit := range res.Hits {

     

       172
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       +
       		id, err := base36.Decode(hit.ID)

     

       173
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       +
       		if err != nil {

     

       174
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       +
       			return nil, err

     

       175
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       +
       		}

     

       176
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       +
       		ret.Hits[i] = id

     

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       +
       	}

     

       178
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       +
       	return ret, nil

     

       179
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       +
       }

     

       180
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       +
       

     

       181
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       +
       func matchAndQuery(keyword, field string) query.Query {

     

       182
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       +
       	q := bleve.NewMatchQuery(keyword)

     

       183
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       +
       	q.FieldVal = field

     

       184
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       +
       	return q

     

       185
       185
       +
       }

     

       186
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       +
       

     

       187
       187
       +
       func boolFieldQuery(val bool, field string) query.Query {

     

       188
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       +
       	q := bleve.NewBoolFieldQuery(val)

     

       189
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       +
       	q.FieldVal = field

     

       190
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       +
       	return q

     

       191
       191
       +
       }

     

       192
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       +
       

     

       193
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       +
       func keywordFieldQuery(keyword, field string) query.Query {

     

       194
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       +
       	q := bleve.NewTermQuery(keyword)

     

       195
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       +
       	q.FieldVal = field

     

       196
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       +
       	return q

     

       197
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       +
       }

+20

appview/indexer/notifier.go

···

       1
       1
       +
       package indexer

     

       2
       2
       +
       

     

       3
       3
       +
       import (

     

       4
       4
       +
       	"context"

     

       5
       5
       +
       

     

       6
       6
       +
       	"tangled.org/core/appview/models"

     

       7
       7
       +
       	"tangled.org/core/appview/notify"

     

       8
       8
       +
       	"tangled.org/core/log"

     

       9
       9
       +
       )

     

       10
       10
       +
       

     

       11
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       +
       var _ notify.Notifier = &Indexer{}

     

       12
       12
       +
       

     

       13
       13
       +
       func (ix *Indexer) NewIssue(ctx context.Context, issue *models.Issue) {

     

       14
       14
       +
       	l := log.FromContext(ctx).With("notifier", "indexer.NewIssue", "issue", issue)

     

       15
       15
       +
       	l.Debug("indexing new issue")

     

       16
       16
       +
       	err := ix.Issues.Index(ctx, *issue)

     

       17
       17
       +
       	if err != nil {

     

       18
       18
       +
       		l.Error("failed to index an issue", "err", err)

     

       19
       19
       +
       	}

     

       20
       20
       +
       }

appview/issues/issues.go

···

       19
       19
        
       	"tangled.org/core/api/tangled"

     

       20
       20
        
       	"tangled.org/core/appview/config"

     

       21
       21
        
       	"tangled.org/core/appview/db"

     

       22
       22
       +
       	issues_indexer "tangled.org/core/appview/indexer/issues"

     

       22
       23
        
       	"tangled.org/core/appview/models"

     

       23
       24
        
       	"tangled.org/core/appview/notify"

     

       24
       25
        
       	"tangled.org/core/appview/oauth"

     
···

       40
       41
        
       	notifier     notify.Notifier

     

       41
       42
        
       	logger       *slog.Logger

     

       42
       43
        
       	validator    *validator.Validator

     

       44
       44
       +
       	indexer      *issues_indexer.Indexer

     

       43
       45
        
       }

     

       44
       46
        
       

     

       45
       47
        
       func New(

     
···

       51
       53
        
       	config *config.Config,

     

       52
       54
        
       	notifier notify.Notifier,

     

       53
       55
        
       	validator *validator.Validator,

     

       56
       56
       +
       	indexer *issues_indexer.Indexer,

     

       54
       57
        
       	logger *slog.Logger,

     

       55
       58
        
       ) *Issues {

     

       56
       59
        
       	return &Issues{

     
···

       63
       66
        
       		notifier:     notifier,

     

       64
       67
        
       		logger:       logger,

     

       65
       68
        
       		validator:    validator,

     

       69
       69
       +
       		indexer: indexer,

     

       66
       70
        
       	}

     

       67
       71
        
       }

     

       68
       72
        
       

     
···

       847
       851
        
       			Rkey:    tid.TID(),

     

       848
       852
        
       			Title:   r.FormValue("title"),

     

       849
       853
        
       			Body:    r.FormValue("body"),

     

       854
       854
       +
       			Open:    true,

     

       850
       855
        
       			Did:     user.Did,

     

       851
       856
        
       			Created: time.Now(),

     

       852
       857
        
       			Repo:    &f.Repo,

+23

appview/models/search.go

···

       1
       1
       +
       package models

     

       2
       2
       +
       

     

       3
       3
       +
       import "tangled.org/core/appview/pagination"

     

       4
       4
       +
       

     

       5
       5
       +
       type IssueSearchOptions struct {

     

       6
       6
       +
       	Keyword string

     

       7
       7
       +
       	RepoAt  string

     

       8
       8
       +
       	IsOpen  bool

     

       9
       9
       +
       

     

       10
       10
       +
       	Page pagination.Page

     

       11
       11
       +
       }

     

       12
       12
       +
       

     

       13
       13
       +
       // func (so *SearchOptions) ToFilters() []filter {

     

       14
       14
       +
       // 	var filters []filter

     

       15
       15
       +
       // 	if so.IsOpen != nil {

     

       16
       16
       +
       // 		openValue := 0

     

       17
       17
       +
       // 		if *so.IsOpen {

     

       18
       18
       +
       // 			openValue = 1

     

       19
       19
       +
       // 		}

     

       20
       20
       +
       // 		filters = append(filters, FilterEq("open", openValue))

     

       21
       21
       +
       // 	}

     

       22
       22
       +
       // 	return filters

     

       23
       23
       +
       // }

appview/pages/pages.go

···

       970
       970
        
       	LabelDefs       map[string]*models.LabelDefinition

     

       971
       971
        
       	Page            pagination.Page

     

       972
       972
        
       	FilteringByOpen bool

     

       973
       973
       +
       	FilterQuery     string

     

       973
       974
        
       }

     

       974
       975
        
       

     

       975
       976
        
       func (p *Pages) RepoIssues(w io.Writer, params RepoIssuesParams) error {

+23

appview/pagination/page.go

···

       29
       29
        
       		Limit:  p.Limit,

     

       30
       30
        
       	}

     

       31
       31
        
       }

     

       32
       32
       +
       

     

       33
       33
       +
       func IterateAll[T any](

     

       34
       34
       +
       	fetch func(page Page) ([]T, error),

     

       35
       35
       +
       	handle func(items []T) error,

     

       36
       36
       +
       ) error {

     

       37
       37
       +
       	page := FirstPage()

     

       38
       38
       +
       	for {

     

       39
       39
       +
       		items, err := fetch(page)

     

       40
       40
       +
       		if err != nil {

     

       41
       41
       +
       			return err

     

       42
       42
       +
       		}

     

       43
       43
       +
       

     

       44
       44
       +
       		err = handle(items)

     

       45
       45
       +
       		if err != nil {

     

       46
       46
       +
       			return err

     

       47
       47
       +
       		}

     

       48
       48
       +
       		if len(items) < page.Limit {

     

       49
       49
       +
       			break

     

       50
       50
       +
       		}

     

       51
       51
       +
       		page = page.Next()

     

       52
       52
       +
       	}

     

       53
       53
       +
       	return nil

     

       54
       54
       +
       }

appview/state/router.go

···

       262
       262
        
       		s.config,

     

       263
       263
        
       		s.notifier,

     

       264
       264
        
       		s.validator,

     

       265
       265
       +
       		s.indexer.Issues,

     

       265
       266
        
       		log.SubLogger(s.logger, "issues"),

     

       266
       267
        
       	)

     

       267
       268
        
       	return issues.Router(mw)

+10

appview/state/state.go

···

       14
       14
        
       	"tangled.org/core/appview"

     

       15
       15
        
       	"tangled.org/core/appview/config"

     

       16
       16
        
       	"tangled.org/core/appview/db"

     

       17
       17
       +
       	"tangled.org/core/appview/indexer"

     

       17
       18
        
       	"tangled.org/core/appview/models"

     

       18
       19
        
       	"tangled.org/core/appview/notify"

     

       19
       20
        
       	dbnotify "tangled.org/core/appview/notify/db"

     
···

       43
       44
        
       type State struct {

     

       44
       45
        
       	db            *db.DB

     

       45
       46
        
       	notifier      notify.Notifier

     

       47
       47
       +
       	indexer       *indexer.Indexer

     

       46
       48
        
       	oauth         *oauth.OAuth

     

       47
       49
        
       	enforcer      *rbac.Enforcer

     

       48
       50
        
       	pages         *pages.Pages

     
···

       65
       67
        
       		return nil, fmt.Errorf("failed to create db: %w", err)

     

       66
       68
        
       	}

     

       67
       69
        
       

     

       70
       70
       +
       	indexer := indexer.New(log.SubLogger(logger, "indexer"))

     

       71
       71
       +
       	err = indexer.Init(ctx, d)

     

       72
       72
       +
       	if err != nil {

     

       73
       73
       +
       		return nil, fmt.Errorf("failed to create indexer: %w", err)

     

       74
       74
       +
       	}

     

       75
       75
       +
       

     

       68
       76
        
       	enforcer, err := rbac.NewEnforcer(config.Core.DbPath)

     

       69
       77
        
       	if err != nil {

     

       70
       78
        
       		return nil, fmt.Errorf("failed to create enforcer: %w", err)

     
···

       159
       167
        
       	if !config.Core.Dev {

     

       160
       168
        
       		notifiers = append(notifiers, phnotify.NewPosthogNotifier(posthog))

     

       161
       169
        
       	}

     

       170
       170
       +
       	notifiers = append(notifiers, indexer)

     

       162
       171
        
       	notifier := notify.NewMergedNotifier(notifiers...)

     

       163
       172
        
       

     

       164
       173
        
       	state := &State{

     

       165
       174
        
       		d,

     

       166
       175
        
       		notifier,

     

       176
       176
       +
       		indexer,

     

       167
       177
        
       		oauth,

     

       168
       178
        
       		enforcer,

     

       169
       179
        
       		pages,