[GITEA] new doctor check: fix-push-mirrors-without-git-remote (#1853)

Same as https://codeberg.org/forgejo/forgejo/pulls/1853, backported to v1.21/forgejo

Reviewed-on: https://codeberg.org/forgejo/forgejo/pulls/1864
Co-authored-by: Gergely Nagy <forgejo@gergo.csillger.hu>
Co-committed-by: Gergely Nagy <forgejo@gergo.csillger.hu>

modules/doctor/push_mirror_consistency.go

@@ -0,0 +1,91 @@
+// Copyright 2023 The Forgejo Authors c/o Codeberg e.V.. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package doctor
+
+import (
+	"context"
+	"strings"
+
+	"code.gitea.io/gitea/models/db"
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/modules/log"
+
+	"xorm.io/builder"
+)
+
+func FixPushMirrorsWithoutGitRemote(ctx context.Context, logger log.Logger, autofix bool) error {
+	var missingMirrors []*repo_model.PushMirror
+
+	err := db.Iterate(ctx, builder.Gt{"id": 0}, func(ctx context.Context, repo *repo_model.Repository) error {
+		pushMirrors, _, err := repo_model.GetPushMirrorsByRepoID(ctx, repo.ID, db.ListOptions{})
+		if err != nil {
+			return err
+		}
+
+		for i := 0; i < len(pushMirrors); i++ {
+			_, err = repo_model.GetPushMirrorRemoteAddress(repo.OwnerName, repo.Name, pushMirrors[i].RemoteName)
+			if err != nil {
+				if strings.Contains(err.Error(), "No such remote") {
+					missingMirrors = append(missingMirrors, pushMirrors[i])
+				} else if logger != nil {
+					logger.Warn("Unable to retrieve the remote address of a mirror: %s", err)
+				}
+			}
+		}
+
+		return nil
+	})
+	if err != nil {
+		if logger != nil {
+			logger.Critical("Unable to iterate across repounits to fix push mirrors without a git remote: Error %v", err)
+		}
+		return err
+	}
+
+	count := len(missingMirrors)
+	if !autofix {
+		if logger != nil {
+			if count == 0 {
+				logger.Info("Found no push mirrors with missing git remotes")
+			} else {
+				logger.Warn("Found %d push mirrors with missing git remotes", count)
+			}
+		}
+		return nil
+	}
+
+	for i := 0; i < len(missingMirrors); i++ {
+		if logger != nil {
+			logger.Info("Removing push mirror #%d (remote: %s), for repo: %s/%s",
+				missingMirrors[i].ID,
+				missingMirrors[i].RemoteName,
+				missingMirrors[i].GetRepository().OwnerName,
+				missingMirrors[i].GetRepository().Name)
+		}
+
+		err = repo_model.DeletePushMirrors(ctx, repo_model.PushMirrorOptions{
+			ID:         missingMirrors[i].ID,
+			RepoID:     missingMirrors[i].RepoID,
+			RemoteName: missingMirrors[i].RemoteName,
+		})
+		if err != nil {
+			if logger != nil {
+				logger.Critical("Error removing a push mirror (repo_id: %d, push_mirror: %d): %s", missingMirrors[i].Repo.ID, missingMirrors[i].ID, err)
+			}
+			return err
+		}
+	}
+
+	return nil
+}
+
+func init() {
+	Register(&Check{
+		Title:     "Check for push mirrors without a git remote configured",
+		Name:      "fix-push-mirrors-without-git-remote",
+		IsDefault: false,
+		Run:       FixPushMirrorsWithoutGitRemote,
+		Priority:  7,
+	})
+}