Split migrations folder (#21549)

There are too many files in `models/migrations` folder so that I split
them into sub folders.

models/migrations/v1_14/v156.go

@@ -0,0 +1,178 @@
+// Copyright 2020 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 v1_14 //nolint
+
+import (
+	"fmt"
+	"path/filepath"
+	"strings"
+
+	"code.gitea.io/gitea/modules/git"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/setting"
+
+	"xorm.io/xorm"
+)
+
+// Copy paste from models/repo.go because we cannot import models package
+func repoPath(userName, repoName string) string {
+	return filepath.Join(userPath(userName), strings.ToLower(repoName)+".git")
+}
+
+func userPath(userName string) string {
+	return filepath.Join(setting.RepoRootPath, strings.ToLower(userName))
+}
+
+func FixPublisherIDforTagReleases(x *xorm.Engine) error {
+	type Release struct {
+		ID          int64
+		RepoID      int64
+		Sha1        string
+		TagName     string
+		PublisherID int64
+	}
+
+	type Repository struct {
+		ID        int64
+		OwnerID   int64
+		OwnerName string
+		Name      string
+	}
+
+	type User struct {
+		ID    int64
+		Name  string
+		Email string
+	}
+
+	const batchSize = 100
+	sess := x.NewSession()
+	defer sess.Close()
+
+	var (
+		repo    *Repository
+		gitRepo *git.Repository
+		user    *User
+	)
+	defer func() {
+		if gitRepo != nil {
+			gitRepo.Close()
+		}
+	}()
+	for start := 0; ; start += batchSize {
+		releases := make([]*Release, 0, batchSize)
+
+		if err := sess.Begin(); err != nil {
+			return err
+		}
+
+		if err := sess.Limit(batchSize, start).
+			Where("publisher_id = 0 OR publisher_id is null").
+			Asc("repo_id", "id").Where("is_tag=?", true).
+			Find(&releases); err != nil {
+			return err
+		}
+
+		if len(releases) == 0 {
+			break
+		}
+
+		for _, release := range releases {
+			if repo == nil || repo.ID != release.RepoID {
+				if gitRepo != nil {
+					gitRepo.Close()
+					gitRepo = nil
+				}
+				repo = new(Repository)
+				has, err := sess.ID(release.RepoID).Get(repo)
+				if err != nil {
+					log.Error("Error whilst loading repository[%d] for release[%d] with tag name %s. Error: %v", release.RepoID, release.ID, release.TagName, err)
+					return err
+				} else if !has {
+					log.Warn("Release[%d] is orphaned and refers to non-existing repository %d", release.ID, release.RepoID)
+					log.Warn("This release should be deleted")
+					continue
+				}
+
+				if repo.OwnerName == "" {
+					// v120.go migration may not have been run correctly - we'll just replicate it here
+					// because this appears to be a common-ish problem.
+					if _, err := sess.Exec("UPDATE repository SET owner_name = (SELECT name FROM `user` WHERE `user`.id = repository.owner_id)"); err != nil {
+						log.Error("Error whilst updating repository[%d] owner name", repo.ID)
+						return err
+					}
+
+					if _, err := sess.ID(release.RepoID).Get(repo); err != nil {
+						log.Error("Error whilst loading repository[%d] for release[%d] with tag name %s. Error: %v", release.RepoID, release.ID, release.TagName, err)
+						return err
+					}
+				}
+				gitRepo, err = git.OpenRepository(git.DefaultContext, repoPath(repo.OwnerName, repo.Name))
+				if err != nil {
+					log.Error("Error whilst opening git repo for [%d]%s/%s. Error: %v", repo.ID, repo.OwnerName, repo.Name, err)
+					return err
+				}
+			}
+
+			commit, err := gitRepo.GetTagCommit(release.TagName)
+			if err != nil {
+				if git.IsErrNotExist(err) {
+					log.Warn("Unable to find commit %s for Tag: %s in [%d]%s/%s. Cannot update publisher ID.", err.(git.ErrNotExist).ID, release.TagName, repo.ID, repo.OwnerName, repo.Name)
+					continue
+				}
+				log.Error("Error whilst getting commit for Tag: %s in [%d]%s/%s. Error: %v", release.TagName, repo.ID, repo.OwnerName, repo.Name, err)
+				return fmt.Errorf("GetTagCommit: %w", err)
+			}
+
+			if commit.Author.Email == "" {
+				log.Warn("Tag: %s in Repo[%d]%s/%s does not have a tagger.", release.TagName, repo.ID, repo.OwnerName, repo.Name)
+				commit, err = gitRepo.GetCommit(commit.ID.String())
+				if err != nil {
+					if git.IsErrNotExist(err) {
+						log.Warn("Unable to find commit %s for Tag: %s in [%d]%s/%s. Cannot update publisher ID.", err.(git.ErrNotExist).ID, release.TagName, repo.ID, repo.OwnerName, repo.Name)
+						continue
+					}
+					log.Error("Error whilst getting commit for Tag: %s in [%d]%s/%s. Error: %v", release.TagName, repo.ID, repo.OwnerName, repo.Name, err)
+					return fmt.Errorf("GetCommit: %w", err)
+				}
+			}
+
+			if commit.Author.Email == "" {
+				log.Warn("Tag: %s in Repo[%d]%s/%s does not have a Tagger and its underlying commit does not have an Author either!", release.TagName, repo.ID, repo.OwnerName, repo.Name)
+				continue
+			}
+
+			if user == nil || !strings.EqualFold(user.Email, commit.Author.Email) {
+				user = new(User)
+				_, err = sess.Where("email=?", commit.Author.Email).Get(user)
+				if err != nil {
+					log.Error("Error whilst getting commit author by email: %s for Tag: %s in [%d]%s/%s. Error: %v", commit.Author.Email, release.TagName, repo.ID, repo.OwnerName, repo.Name, err)
+					return err
+				}
+
+				user.Email = commit.Author.Email
+			}
+
+			if user.ID <= 0 {
+				continue
+			}
+
+			release.PublisherID = user.ID
+			if _, err := sess.ID(release.ID).Cols("publisher_id").Update(release); err != nil {
+				log.Error("Error whilst updating publisher[%d] for release[%d] with tag name %s. Error: %v", release.PublisherID, release.ID, release.TagName, err)
+				return err
+			}
+		}
+		if gitRepo != nil {
+			gitRepo.Close()
+		}
+
+		if err := sess.Commit(); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}