1 files changed, 202 insertions, 0 deletions
diff --git a/services/repository/check.go b/services/repository/check.go
new file mode 100644
index 0000000..5cdcc14
--- /dev/null
+++ b/services/repository/check.go
@@ -0,0 +1,202 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package repository
+
+import (
+	"context"
+	"fmt"
+	"strings"
+	"time"
+
+	"code.gitea.io/gitea/models/db"
+	repo_model "code.gitea.io/gitea/models/repo"
+	system_model "code.gitea.io/gitea/models/system"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/git"
+	"code.gitea.io/gitea/modules/log"
+	repo_module "code.gitea.io/gitea/modules/repository"
+	"code.gitea.io/gitea/modules/util"
+
+	"xorm.io/builder"
+)
+
+// GitFsckRepos calls 'git fsck' to check repository health.
+func GitFsckRepos(ctx context.Context, timeout time.Duration, args git.TrustedCmdArgs) error {
+	log.Trace("Doing: GitFsck")
+
+	if err := db.Iterate(
+		ctx,
+		builder.Expr("id>0 AND is_fsck_enabled=?", true),
+		func(ctx context.Context, repo *repo_model.Repository) error {
+			select {
+			case <-ctx.Done():
+				return db.ErrCancelledf("before fsck of %s", repo.FullName())
+			default:
+			}
+			return GitFsckRepo(ctx, repo, timeout, args)
+		},
+	); err != nil {
+		log.Trace("Error: GitFsck: %v", err)
+		return err
+	}
+
+	log.Trace("Finished: GitFsck")
+	return nil
+}
+
+// GitFsckRepo calls 'git fsck' to check an individual repository's health.
+func GitFsckRepo(ctx context.Context, repo *repo_model.Repository, timeout time.Duration, args git.TrustedCmdArgs) error {
+	log.Trace("Running health check on repository %-v", repo)
+	repoPath := repo.RepoPath()
+	if err := git.Fsck(ctx, repoPath, timeout, args); err != nil {
+		log.Warn("Failed to health check repository (%-v): %v", repo, err)
+		if err = system_model.CreateRepositoryNotice("Failed to health check repository (%s): %v", repo.FullName(), err); err != nil {
+			log.Error("CreateRepositoryNotice: %v", err)
+		}
+	}
+	return nil
+}
+
+// GitGcRepos calls 'git gc' to remove unnecessary files and optimize the local repository
+func GitGcRepos(ctx context.Context, timeout time.Duration, args git.TrustedCmdArgs) error {
+	log.Trace("Doing: GitGcRepos")
+
+	if err := db.Iterate(
+		ctx,
+		builder.Gt{"id": 0},
+		func(ctx context.Context, repo *repo_model.Repository) error {
+			select {
+			case <-ctx.Done():
+				return db.ErrCancelledf("before GC of %s", repo.FullName())
+			default:
+			}
+			// we can ignore the error here because it will be logged in GitGCRepo
+			_ = GitGcRepo(ctx, repo, timeout, args)
+			return nil
+		},
+	); err != nil {
+		return err
+	}
+
+	log.Trace("Finished: GitGcRepos")
+	return nil
+}
+
+// GitGcRepo calls 'git gc' to remove unnecessary files and optimize the local repository
+func GitGcRepo(ctx context.Context, repo *repo_model.Repository, timeout time.Duration, args git.TrustedCmdArgs) error {
+	log.Trace("Running git gc on %-v", repo)
+	command := git.NewCommand(ctx, "gc").AddArguments(args...).
+		SetDescription(fmt.Sprintf("Repository Garbage Collection: %s", repo.FullName()))
+	var stdout string
+	var err error
+	stdout, _, err = command.RunStdString(&git.RunOpts{Timeout: timeout, Dir: repo.RepoPath()})
+	if err != nil {
+		log.Error("Repository garbage collection failed for %-v. Stdout: %s\nError: %v", repo, stdout, err)
+		desc := fmt.Sprintf("Repository garbage collection failed for %s. Stdout: %s\nError: %v", repo.RepoPath(), stdout, err)
+		if err := system_model.CreateRepositoryNotice(desc); err != nil {
+			log.Error("CreateRepositoryNotice: %v", err)
+		}
+		return fmt.Errorf("Repository garbage collection failed in repo: %s: Error: %w", repo.FullName(), err)
+	}
+
+	// Now update the size of the repository
+	if err := repo_module.UpdateRepoSize(ctx, repo); err != nil {
+		log.Error("Updating size as part of garbage collection failed for %-v. Stdout: %s\nError: %v", repo, stdout, err)
+		desc := fmt.Sprintf("Updating size as part of garbage collection failed for %s. Stdout: %s\nError: %v", repo.RepoPath(), stdout, err)
+		if err := system_model.CreateRepositoryNotice(desc); err != nil {
+			log.Error("CreateRepositoryNotice: %v", err)
+		}
+		return fmt.Errorf("Updating size as part of garbage collection failed in repo: %s: Error: %w", repo.FullName(), err)
+	}
+
+	return nil
+}
+
+func gatherMissingRepoRecords(ctx context.Context) (repo_model.RepositoryList, error) {
+	repos := make([]*repo_model.Repository, 0, 10)
+	if err := db.Iterate(
+		ctx,
+		builder.Gt{"id": 0},
+		func(ctx context.Context, repo *repo_model.Repository) error {
+			select {
+			case <-ctx.Done():
+				return db.ErrCancelledf("during gathering missing repo records before checking %s", repo.FullName())
+			default:
+			}
+			isDir, err := util.IsDir(repo.RepoPath())
+			if err != nil {
+				return fmt.Errorf("Unable to check dir for %s. %w", repo.FullName(), err)
+			}
+			if !isDir {
+				repos = append(repos, repo)
+			}
+			return nil
+		},
+	); err != nil {
+		if strings.HasPrefix(err.Error(), "Aborted gathering missing repo") {
+			return nil, err
+		}
+		if err2 := system_model.CreateRepositoryNotice("gatherMissingRepoRecords: %v", err); err2 != nil {
+			log.Error("CreateRepositoryNotice: %v", err2)
+		}
+		return nil, err
+	}
+	return repos, nil
+}
+
+// DeleteMissingRepositories deletes all repository records that lost Git files.
+func DeleteMissingRepositories(ctx context.Context, doer *user_model.User) error {
+	repos, err := gatherMissingRepoRecords(ctx)
+	if err != nil {
+		return err
+	}
+
+	if len(repos) == 0 {
+		return nil
+	}
+
+	for _, repo := range repos {
+		select {
+		case <-ctx.Done():
+			return db.ErrCancelledf("during DeleteMissingRepositories before %s", repo.FullName())
+		default:
+		}
+		log.Trace("Deleting %d/%d...", repo.OwnerID, repo.ID)
+		if err := DeleteRepositoryDirectly(ctx, doer, repo.ID); err != nil {
+			log.Error("Failed to DeleteRepository %-v: Error: %v", repo, err)
+			if err2 := system_model.CreateRepositoryNotice("Failed to DeleteRepository %s [%d]: Error: %v", repo.FullName(), repo.ID, err); err2 != nil {
+				log.Error("CreateRepositoryNotice: %v", err)
+			}
+		}
+	}
+	return nil
+}
+
+// ReinitMissingRepositories reinitializes all repository records that lost Git files.
+func ReinitMissingRepositories(ctx context.Context) error {
+	repos, err := gatherMissingRepoRecords(ctx)
+	if err != nil {
+		return err
+	}
+
+	if len(repos) == 0 {
+		return nil
+	}
+
+	for _, repo := range repos {
+		select {
+		case <-ctx.Done():
+			return db.ErrCancelledf("during ReinitMissingRepositories before %s", repo.FullName())
+		default:
+		}
+		log.Trace("Initializing %d/%d...", repo.OwnerID, repo.ID)
+		if err := git.InitRepository(ctx, repo.RepoPath(), true, repo.ObjectFormatName); err != nil {
+			log.Error("Unable (re)initialize repository %d at %s. Error: %v", repo.ID, repo.RepoPath(), err)
+			if err2 := system_model.CreateRepositoryNotice("InitRepository [%d]: %v", repo.ID, err); err2 != nil {
+				log.Error("CreateRepositoryNotice: %v", err2)
+			}
+		}
+	}
+	return nil
+}