Refactor issue indexer (#5363)

modules/setting/indexer.go

@@ -0,0 +1,55 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package setting
+
+import (
+	"path"
+	"path/filepath"
+)
+
+// enumerates all the indexer queue types
+const (
+	LevelQueueType   = "levelqueue"
+	ChannelQueueType = "channel"
+)
+
+var (
+	// Indexer settings
+	Indexer = struct {
+		IssueType                    string
+		IssuePath                    string
+		RepoIndexerEnabled           bool
+		RepoPath                     string
+		UpdateQueueLength            int
+		MaxIndexerFileSize           int64
+		IssueIndexerQueueType        string
+		IssueIndexerQueueDir         string
+		IssueIndexerQueueBatchNumber int
+	}{
+		IssueType:                    "bleve",
+		IssuePath:                    "indexers/issues.bleve",
+		IssueIndexerQueueType:        LevelQueueType,
+		IssueIndexerQueueDir:         "indexers/issues.queue",
+		IssueIndexerQueueBatchNumber: 20,
+	}
+)
+
+func newIndexerService() {
+	sec := Cfg.Section("indexer")
+	Indexer.IssuePath = sec.Key("ISSUE_INDEXER_PATH").MustString(path.Join(AppDataPath, "indexers/issues.bleve"))
+	if !filepath.IsAbs(Indexer.IssuePath) {
+		Indexer.IssuePath = path.Join(AppWorkPath, Indexer.IssuePath)
+	}
+	Indexer.RepoIndexerEnabled = sec.Key("REPO_INDEXER_ENABLED").MustBool(false)
+	Indexer.RepoPath = sec.Key("REPO_INDEXER_PATH").MustString(path.Join(AppDataPath, "indexers/repos.bleve"))
+	if !filepath.IsAbs(Indexer.RepoPath) {
+		Indexer.RepoPath = path.Join(AppWorkPath, Indexer.RepoPath)
+	}
+	Indexer.UpdateQueueLength = sec.Key("UPDATE_BUFFER_LEN").MustInt(20)
+	Indexer.MaxIndexerFileSize = sec.Key("MAX_FILE_SIZE").MustInt64(1024 * 1024)
+	Indexer.IssueIndexerQueueType = sec.Key("ISSUE_INDEXER_QUEUE_TYPE").MustString(LevelQueueType)
+	Indexer.IssueIndexerQueueDir = sec.Key("ISSUE_INDEXER_QUEUE_DIR").MustString(path.Join(AppDataPath, "indexers/issues.queue"))
+	Indexer.IssueIndexerQueueBatchNumber = sec.Key("ISSUE_INDEXER_QUEUE_BATCH_NUMBER").MustInt(20)
+}