refactor: prepare to decouple the "model migration" package and "models" package (#38533)

Migrations should never use model structs directly, because the model structs can be different in different releases. e.g. if one migration uses "User" model, it works in the early releases, then one day, when the User model changes, the migration breaks because it will use the new (incorrect) User model, it should only use the old User model. The same to "modules/structs". --------- Signed-off-by: wxiaoguang <wxiaoguang@gmail.com> Co-authored-by: delvh <dev.lh@web.de>
2026-09-23 05:03:39 +09:00 · 2026-07-20 03:42:02 +00:00
parent 775e3bdb34
commit fff32e9469
378 changed files with 708 additions and 721 deletions
@@ -0,0 +1,120 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_12
+
+import (
+	"fmt"
+	"math"
+	"time"
+
+	"gitea.dev/modelmigration/base"
+	repo_model "gitea.dev/models/repo"
+	"gitea.dev/modules/gitrepo"
+	"gitea.dev/modules/graceful"
+	"gitea.dev/modules/log"
+	"gitea.dev/modules/setting"
+)
+
+func AddCommitDivergenceToPulls(x base.EngineMigration) error {
+	type Repository struct {
+		ID        int64 `xorm:"pk autoincr"`
+		OwnerID   int64 `xorm:"UNIQUE(s) index"`
+		OwnerName string
+		LowerName string `xorm:"UNIQUE(s) INDEX NOT NULL"`
+		Name      string `xorm:"INDEX NOT NULL"`
+	}
+
+	type PullRequest struct {
+		ID      int64 `xorm:"pk autoincr"`
+		IssueID int64 `xorm:"INDEX"`
+		Index   int64
+
+		CommitsAhead  int
+		CommitsBehind int
+
+		BaseRepoID int64 `xorm:"INDEX"`
+		BaseBranch string
+
+		HasMerged      bool   `xorm:"INDEX"`
+		MergedCommitID string `xorm:"VARCHAR(40)"`
+	}
+
+	if err := x.Sync(new(PullRequest)); err != nil {
+		return fmt.Errorf("Sync: %w", err)
+	}
+
+	last := 0
+	migrated := 0
+
+	batchSize := setting.Database.IterateBufferSize
+	sess := x.NewSession()
+	defer sess.Close()
+
+	ticker := time.NewTicker(5 * time.Second)
+	defer ticker.Stop()
+	count, err := sess.Where("has_merged = ?", false).Count(new(PullRequest))
+	if err != nil {
+		return err
+	}
+	log.Info("%d Unmerged Pull Request(s) to migrate ...", count)
+
+	for {
+		if err := sess.Begin(); err != nil {
+			return err
+		}
+		results := make([]*PullRequest, 0, batchSize)
+		err := sess.Where("has_merged = ?", false).OrderBy("id").Limit(batchSize, last).Find(&results)
+		if err != nil {
+			return err
+		}
+		if len(results) == 0 {
+			break
+		}
+		last += batchSize
+
+		for _, pr := range results {
+			baseRepo := &Repository{ID: pr.BaseRepoID}
+			has, err := x.Table("repository").Get(baseRepo)
+			if err != nil {
+				return fmt.Errorf("Unable to get base repo %d %w", pr.BaseRepoID, err)
+			}
+			if !has {
+				log.Error("Missing base repo with id %d for PR ID %d", pr.BaseRepoID, pr.ID)
+				continue
+			}
+			repoStore := repo_model.CodeRepoByName(baseRepo.OwnerName, baseRepo.Name)
+			gitRefName := fmt.Sprintf("refs/pull/%d/head", pr.Index)
+			divergence, err := gitrepo.GetDivergingCommits(graceful.GetManager().HammerContext(), repoStore, pr.BaseBranch, gitRefName)
+			if err != nil {
+				log.Warn("Could not recalculate Divergence for pull: %d", pr.ID)
+				pr.CommitsAhead = 0
+				pr.CommitsBehind = 0
+			}
+			pr.CommitsAhead = divergence.Ahead
+			pr.CommitsBehind = divergence.Behind
+
+			if _, err = sess.ID(pr.ID).Cols("commits_ahead", "commits_behind").Update(pr); err != nil {
+				return fmt.Errorf("Update Cols: %w", err)
+			}
+			migrated++
+		}
+
+		if err := sess.Commit(); err != nil {
+			return err
+		}
+		select {
+		case <-ticker.C:
+			log.Info(
+				"%d/%d (%2.0f%%) Pull Request(s) migrated in %d batches. %d PRs Remaining ...",
+				migrated,
+				count,
+				float64(migrated)/float64(count)*100,
+				int(math.Ceil(float64(migrated)/float64(batchSize))),
+				count-int64(migrated))
+		default:
+		}
+	}
+	log.Info("Completed migrating %d Pull Request(s) in: %d batches", count, int(math.Ceil(float64(migrated)/float64(batchSize))))
+	return nil
+}