1 files changed, 84 insertions, 0 deletions
diff --git a/modules/indexer/stats/db.go b/modules/indexer/stats/db.go
new file mode 100644
index 00000000..98a977c7
--- /dev/null
+++ b/modules/indexer/stats/db.go
@@ -0,0 +1,84 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package stats
+
+import (
+	"fmt"
+
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/modules/git"
+	"code.gitea.io/gitea/modules/gitrepo"
+	"code.gitea.io/gitea/modules/graceful"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/process"
+	"code.gitea.io/gitea/modules/setting"
+)
+
+// DBIndexer implements Indexer interface to use database's like search
+type DBIndexer struct{}
+
+// Index repository status function
+func (db *DBIndexer) Index(id int64) error {
+	ctx, _, finished := process.GetManager().AddContext(graceful.GetManager().ShutdownContext(), fmt.Sprintf("Stats.DB Index Repo[%d]", id))
+	defer finished()
+
+	repo, err := repo_model.GetRepositoryByID(ctx, id)
+	if err != nil {
+		return err
+	}
+	if repo.IsEmpty {
+		return nil
+	}
+
+	status, err := repo_model.GetIndexerStatus(ctx, repo, repo_model.RepoIndexerTypeStats)
+	if err != nil {
+		return err
+	}
+
+	gitRepo, err := gitrepo.OpenRepository(ctx, repo)
+	if err != nil {
+		if err.Error() == "no such file or directory" {
+			return nil
+		}
+		return err
+	}
+	defer gitRepo.Close()
+
+	// Get latest commit for default branch
+	commitID, err := gitRepo.GetBranchCommitID(repo.DefaultBranch)
+	if err != nil {
+		if git.IsErrBranchNotExist(err) || git.IsErrNotExist(err) || setting.IsInTesting {
+			log.Debug("Unable to get commit ID for default branch %s in %s ... skipping this repository", repo.DefaultBranch, repo.RepoPath())
+			return nil
+		}
+		log.Error("Unable to get commit ID for default branch %s in %s. Error: %v", repo.DefaultBranch, repo.RepoPath(), err)
+		return err
+	}
+
+	// Do not recalculate stats if already calculated for this commit
+	if status.CommitSha == commitID {
+		return nil
+	}
+
+	// Calculate and save language statistics to database
+	stats, err := gitRepo.GetLanguageStats(commitID)
+	if err != nil {
+		if !setting.IsInTesting {
+			log.Error("Unable to get language stats for ID %s for default branch %s in %s. Error: %v", commitID, repo.DefaultBranch, repo.RepoPath(), err)
+		}
+		return err
+	}
+	err = repo_model.UpdateLanguageStats(ctx, repo, commitID, stats)
+	if err != nil {
+		log.Error("Unable to update language stats for ID %s for default branch %s in %s. Error: %v", commitID, repo.DefaultBranch, repo.RepoPath(), err)
+		return err
+	}
+
+	log.Debug("DBIndexer completed language stats for ID %s for default branch %s in %s. stats count: %d", commitID, repo.DefaultBranch, repo.RepoPath(), len(stats))
+	return nil
+}
+
+// Close dummy function
+func (db *DBIndexer) Close() {
+}