Merge 1ac03bb35e9053819b0c59c0543eae6106afb968 into 98ff7d077376db1225f266095788c6bd9414288a

models/fixtures/branch.yml

@@ -249,3 +249,27 @@
   is_deleted: false
   deleted_by_id: 0
   deleted_unix: 0
+
+-
+  id: 29
+  repo_id: 10
+  name: 'develop'
+  commit_id: '65f1bf27bc3bf70f64657658635e66094edbcb4d'
+  commit_message: 'Initial commit'
+  commit_time: 1489927679
+  pusher_id: 2
+  is_deleted: false
+  deleted_by_id: 0
+  deleted_unix: 0
+
+-
+  id: 30
+  repo_id: 1
+  name: 'pr-to-update'
+  commit_id: '62fb502a7172d4453f0322a2cc85bddffa57f07a'
+  commit_message: 'add WoW File'
+  commit_time: 1579204295
+  pusher_id: 2
+  is_deleted: false
+  deleted_by_id: 0
+  deleted_unix: 0

models/git/branch.go

@@ -156,6 +156,19 @@ func init() {
 	db.RegisterModel(new(RenamedBranch))
 }
 
+func GetBranchByID(ctx context.Context, branchID int64) (*Branch, error) {
+	var branch Branch
+	has, err := db.GetEngine(ctx).ID(branchID).Get(&branch)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, ErrBranchNotExist{
+			RepoID: branch.RepoID,
+		}
+	}
+	return &branch, nil
+}
+
 func GetBranch(ctx context.Context, repoID int64, branchName string) (*Branch, error) {
 	var branch Branch
 	has, err := db.GetEngine(ctx).Where("repo_id=?", repoID).And("name=?", branchName).Get(&branch)

models/issues/issue_dev_link.go

@@ -0,0 +1,59 @@
+// Copyright 2024 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package issues
+
+import (
+	"context"
+
+	"code.gitea.io/gitea/models/db"
+	git_model "code.gitea.io/gitea/models/git"
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/modules/timeutil"
+)
+
+type IssueDevLinkType int
+
+const (
+	IssueDevLinkTypeBranch IssueDevLinkType = iota + 1
+	IssueDevLinkTypePullRequest
+)
+
+type IssueDevLink struct {
+	ID            int64 `xorm:"pk autoincr"`
+	IssueID       int64 `xorm:"INDEX"`
+	LinkType      IssueDevLinkType
+	LinkedRepoID  int64                  `xorm:"INDEX"` // it can link to self repo or other repo
+	LinkID        int64                  // branch id in branch table or the pull request id(not issue if of the pull request)
+	CreatedUnix   timeutil.TimeStamp     `xorm:"INDEX created"`
+	Repo          *repo_model.Repository `xorm:"-"` // current repo of issue
+	LinkedRepo    *repo_model.Repository `xorm:"-"`
+	PullRequest   *PullRequest           `xorm:"-"`
+	Branch        *git_model.Branch      `xorm:"-"`
+	DisplayBranch bool                   `xorm:"-"`
+}
+
+func init() {
+	db.RegisterModel(new(IssueDevLink))
+}
+
+func (i *IssueDevLink) BranchFullName() string {
+	if i.Repo.ID == i.LinkedRepo.ID {
+		return i.Branch.Name
+	}
+	return i.LinkedRepo.FullName() + ":" + i.Branch.Name
+}
+
+// IssueDevLinks represents a list of issue development links
+type IssueDevLinks []*IssueDevLink
+
+// FindIssueDevLinksByIssueID returns a list of issue development links by issue ID
+func FindIssueDevLinksByIssueID(ctx context.Context, issueID int64) (IssueDevLinks, error) {
+	links := make(IssueDevLinks, 0, 5)
+	return links, db.GetEngine(ctx).Where("issue_id = ?", issueID).Find(&links)
+}
+
+func CreateIssueDevLink(ctx context.Context, link *IssueDevLink) error {
+	_, err := db.GetEngine(ctx).Insert(link)
+	return err
+}

models/migrations/migrations.go

@@ -25,6 +25,7 @@ import (
 	"code.gitea.io/gitea/models/migrations/v1_23"
 	"code.gitea.io/gitea/models/migrations/v1_24"
 	"code.gitea.io/gitea/models/migrations/v1_25"
+	"code.gitea.io/gitea/models/migrations/v1_26"
 	"code.gitea.io/gitea/models/migrations/v1_6"
 	"code.gitea.io/gitea/models/migrations/v1_7"
 	"code.gitea.io/gitea/models/migrations/v1_8"
@@ -394,7 +395,10 @@ func prepareMigrationTasks() []*migration {
 		// Gitea 1.24.0 ends at database version 321
 		newMigration(321, "Use LONGTEXT for some columns and fix review_state.updated_files column", v1_25.UseLongTextInSomeColumnsAndFixBugs),
 		newMigration(322, "Extend comment tree_path length limit", v1_25.ExtendCommentTreePathLength),
-		newMigration(323, "Add support for actions concurrency", v1_25.AddActionsConcurrency),
+
+		// Gitea 1.25.0 ends at database version 323
+		newMigration(323, "Add support for actions concurrency", v1_26.AddActionsConcurrency),
+		newMigration(324, "Add table issue_dev_link", v1_26.CreateTableIssueDevLink),
 	}
 	return preparedMigrations
 }

models/migrations/v1_26/main_test.go

@@ -0,0 +1,14 @@
+// Copyright 2025 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_26
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/migrations/base"
+)
+
+func TestMain(m *testing.M) {
+	base.MainTest(m)
+}

models/migrations/v1_26/v323.go

@@ -1,7 +1,7 @@
 // Copyright 2025 The Gitea Authors. All rights reserved.
 // SPDX-License-Identifier: MIT
 
-package v1_25
+package v1_26
 
 import (
 	"xorm.io/xorm"

models/migrations/v1_26/v324.go

@@ -0,0 +1,22 @@
+// Copyright 2025 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_26
+
+import (
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"xorm.io/xorm"
+)
+
+func CreateTableIssueDevLink(x *xorm.Engine) error {
+	type IssueDevLink struct {
+		ID           int64 `xorm:"pk autoincr"`
+		IssueID      int64 `xorm:"INDEX"`
+		LinkType     int
+		LinkedRepoID int64              `xorm:"INDEX"` // it can link to self repo or other repo
+		LinkID       int64              // branch id in branch table or pull request id
+		CreatedUnix  timeutil.TimeStamp `xorm:"INDEX created"`
+	}
+	return x.Sync(new(IssueDevLink))
+}

models/migrations/v1_26/v324_test.go

@@ -0,0 +1,20 @@
+// Copyright 2025 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_26
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/migrations/base"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func Test_CreateTableIssueDevLink(t *testing.T) {
+	// Prepare and load the testing database
+	x, deferable := base.PrepareTestEnv(t, 0)
+	defer deferable()
+
+	assert.NoError(t, CreateTableIssueDevLink(x))
+}

models/repo/repo.go

@@ -632,7 +632,7 @@ func (repo *Repository) IsOwnedBy(userID int64) bool {
 
 // CanCreateBranch returns true if repository meets the requirements for creating new branches.
 func (repo *Repository) CanCreateBranch() bool {
-	return !repo.IsMirror
+	return !repo.IsMirror && !repo.IsArchived
 }
 
 // CanEnablePulls returns true if repository meets the requirements of accepting pulls.

options/locale/locale_en-US.ini

@@ -1695,6 +1695,17 @@ issues.label.filter_sort.alphabetically = Alphabetically
 issues.label.filter_sort.reverse_alphabetically = Reverse alphabetically
 issues.label.filter_sort.by_size = Smallest size
 issues.label.filter_sort.reverse_by_size = Largest size
+issues.development = Development
+issues.maybefixed = May be fixed by %s
+issues.create_branch_from_issue_success = Create branch %s from issue successfully
+issues.create_branch_from_repository = Repository the branch to be created
+issues.base_branch = Base Branch in this repository
+issues.pr.completed = Completed
+issues.pr.conflicted = Merge conflicts
+issues.pr.not_exist_issue = Reference issue does not exist.
+issues.branch.latest = Latest commit %s
+issues.link.created = Created %s
+issues.create_branch_from_issue_error_is_pull = Issue links cannot be created with pull request
 issues.num_participants = %d Participants
 issues.attachment.open_tab = `Click to see "%s" in a new tab`
 issues.attachment.download = `Click to download "%s"`
@@ -2765,6 +2776,7 @@ branch.create_from = from "%s"
 branch.create_success = Branch "%s" has been created.
 branch.branch_already_exists = Branch "%s" already exists in this repository.
 branch.branch_name_conflict = Branch name "%s" conflicts with the already existing branch "%s".
+branch.branch_not_exist = Branch "%s" do not exists in this repository.
 branch.tag_collision = Branch "%s" cannot be created as a tag with same name already exists in the repository.
 branch.deleted_by = Deleted by %s
 branch.restore_success = Branch "%s" has been restored.

routers/private/hook_post_receive.go

@@ -113,6 +113,10 @@ func HookPostReceive(ctx *gitea_context.PrivateContext) {
 					})
 					return
 				}
+
+				if err := repo_service.DeleteIssueDevLinkByBranchName(ctx, repo.ID, update.RefFullName.BranchName()); err != nil {
+					log.Error("Failed to DeleteIssueDevLinkByBranchName: %s/%s %s Error: %v", ownerName, repoName, update.RefFullName.BranchName(), err)
+				}
 			} else {
 				branchesToSync = append(branchesToSync, update)
 

routers/web/repo/compare.go

@@ -869,6 +869,21 @@ func CompareDiff(ctx *context.Context) {
 		ctx.Data["AllowMaintainerEdit"] = false
 	}
 
+	refIssueIndex := ctx.FormInt64("ref_issue_index")
+	if refIssueIndex > 0 {
+		refIssue, err := issues_model.GetIssueByIndex(ctx, ctx.Repo.Repository.ID, refIssueIndex)
+		if err != nil {
+			ctx.Flash.Warning(ctx.Tr("repo.issues.pr.not_exist_issue"), true)
+		} else {
+			keyword := "Resolve"
+			if len(setting.Repository.PullRequest.CloseKeywords) > 0 {
+				keyword = setting.Repository.PullRequest.CloseKeywords[0]
+			}
+			ctx.Data["TitleQuery"] = fmt.Sprintf("%s %s", keyword, refIssue.Title)
+			ctx.Data["BodyQuery"] = fmt.Sprintf("%s #%d", keyword, refIssueIndex)
+		}
+	}
+
 	ctx.HTML(http.StatusOK, tplCompare)
 }
 

routers/web/repo/issue_dev.go

@@ -0,0 +1,112 @@
+// Copyright 2024 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package repo
+
+import (
+	"net/http"
+
+	git_model "code.gitea.io/gitea/models/git"
+	issues_model "code.gitea.io/gitea/models/issues"
+	access_model "code.gitea.io/gitea/models/perm/access"
+	repo_model "code.gitea.io/gitea/models/repo"
+	unit_model "code.gitea.io/gitea/models/unit"
+	"code.gitea.io/gitea/modules/git"
+	"code.gitea.io/gitea/modules/web"
+	"code.gitea.io/gitea/routers/utils"
+	"code.gitea.io/gitea/services/context"
+	"code.gitea.io/gitea/services/forms"
+	repo_service "code.gitea.io/gitea/services/repository"
+)
+
+func CreateBranchFromIssue(ctx *context.Context) {
+	if ctx.HasError() { // form binding error check
+		ctx.JSONError(ctx.GetErrMsg())
+		return
+	}
+
+	issue := GetActionIssue(ctx)
+	if ctx.Written() {
+		return
+	}
+
+	if issue.IsPull {
+		ctx.Flash.Error(ctx.Tr("repo.issues.create_branch_from_issue_error_is_pull"))
+		ctx.JSONRedirect(issue.Link())
+		return
+	}
+
+	form := web.GetForm(ctx).(*forms.NewBranchForm)
+	repo := ctx.Repo.Repository
+	// if create branch in a forked repository
+	if form.RepoID > 0 && form.RepoID != repo.ID {
+		var err error
+		repo, err = repo_model.GetRepositoryByID(ctx, form.RepoID)
+		if err != nil {
+			ctx.ServerError("GetRepositoryByID", err)
+			return
+		}
+	}
+
+	perm, err := access_model.GetUserRepoPermission(ctx, repo, ctx.Doer)
+	if err != nil {
+		ctx.ServerError("GetUserRepoPermission", err)
+		return
+	}
+
+	canCreateBranch := perm.CanWrite(unit_model.TypeCode) && repo.CanCreateBranch()
+	if !canCreateBranch {
+		ctx.HTTPError(http.StatusForbidden, "No permission to create branch in this repository")
+		return
+	}
+
+	if err := repo_service.CreateNewBranch(ctx, ctx.Doer, repo, form.SourceBranchName, form.NewBranchName); err != nil {
+		switch {
+		case git_model.IsErrBranchAlreadyExists(err) || git.IsErrPushOutOfDate(err):
+			ctx.JSONError(ctx.Tr("repo.branch.branch_already_exists", form.NewBranchName))
+		case git_model.IsErrBranchNameConflict(err):
+			e := err.(git_model.ErrBranchNameConflict)
+			ctx.JSONError(ctx.Tr("repo.branch.branch_name_conflict", form.NewBranchName, e.BranchName))
+		case git_model.IsErrBranchNotExist(err):
+			ctx.JSONError(ctx.Tr("repo.branch.branch_not_exist", form.SourceBranchName))
+		case git.IsErrPushRejected(err):
+			e := err.(*git.ErrPushRejected)
+			if len(e.Message) == 0 {
+				ctx.Flash.Error(ctx.Tr("repo.editor.push_rejected_no_message"))
+			} else {
+				flashError, err := ctx.RenderToHTML(tplAlertDetails, map[string]any{
+					"Message": ctx.Tr("repo.editor.push_rejected"),
+					"Summary": ctx.Tr("repo.editor.push_rejected_summary"),
+					"Details": utils.SanitizeFlashErrorString(e.Message),
+				})
+				if err != nil {
+					ctx.ServerError("UpdatePullRequest.HTMLString", err)
+					return
+				}
+				ctx.JSONError(flashError)
+			}
+		default:
+			ctx.ServerError("CreateNewBranch", err)
+		}
+		return
+	}
+
+	branch, err := git_model.GetBranch(ctx, repo.ID, form.NewBranchName)
+	if err != nil {
+		ctx.ServerError("GetBranch", err)
+		return
+	}
+
+	if err := issues_model.CreateIssueDevLink(ctx, &issues_model.IssueDevLink{
+		IssueID:      issue.ID,
+		LinkType:     issues_model.IssueDevLinkTypeBranch,
+		LinkedRepoID: repo.ID,
+		LinkID:       branch.ID,
+	}); err != nil {
+		ctx.ServerError("CreateIssueDevLink", err)
+		return
+	}
+
+	ctx.Flash.Success(ctx.Tr("repo.issues.create_branch_from_issue_success", form.NewBranchName))
+	ctx.JSONRedirect(issue.Link())
+}

routers/web/repo/issue_view.go

@@ -383,6 +383,7 @@ func ViewIssue(ctx *context.Context) {
 	prepareFuncs := []func(*context.Context, *issues_model.Issue){
 		prepareIssueViewContent,
 		prepareIssueViewCommentsAndSidebarParticipants,
+		prepareIssueViewSidebarDevLinks,
 		prepareIssueViewSidebarWatch,
 		prepareIssueViewSidebarTimeTracker,
 		prepareIssueViewSidebarDependency,
@@ -1011,3 +1012,50 @@ func prepareIssueViewContent(ctx *context.Context, issue *issues_model.Issue) {
 		return
 	}
 }
+
+func prepareIssueViewSidebarDevLinks(ctx *context.Context, issue *issues_model.Issue) {
+	if issue.IsPull {
+		return
+	}
+
+	devLinks, err := issue_service.FindIssueDevLinksByIssue(ctx, issue)
+	if err != nil {
+		ctx.ServerError("FindIssueDevLinksByIssue", err)
+		return
+	}
+	ctx.Data["DevLinks"] = devLinks
+	for _, link := range devLinks {
+		if link.LinkType == issues_model.IssueDevLinkTypePullRequest &&
+			!(link.PullRequest.Issue.IsClosed && !link.PullRequest.HasMerged) {
+			ctx.Data["MaybeFixed"] = link.PullRequest
+			break
+		}
+	}
+
+	if !ctx.IsSigned {
+		return
+	}
+
+	// Get all possible repositories for creating branch model dropdown list
+	forkedRepos, err := repo_model.GetForksByUserAndOrgs(ctx, ctx.Doer, ctx.Repo.Repository)
+	if err != nil {
+		ctx.ServerError("GetForksByUserAndOrgs", err)
+		return
+	}
+	allowedRepos := make([]*repo_model.Repository, 0, len(forkedRepos)+1)
+	for _, repo := range append(forkedRepos, ctx.Repo.Repository) {
+		perm, err := access_model.GetUserRepoPermission(ctx, repo, ctx.Doer)
+		if err != nil {
+			ctx.ServerError("GetUserRepoPermission", err)
+			return
+		}
+		if perm.CanWrite(unit.TypeCode) {
+			allowedRepos = append(allowedRepos, repo)
+		}
+	}
+
+	ctx.Data["AllowedRepos"] = allowedRepos
+	ctx.Data["ShowCreateBranchLink"] = !ctx.Repo.Repository.IsEmpty &&
+		ctx.Repo.Repository.CanCreateBranch() &&
+		len(allowedRepos) > 0 && !issue.IsClosed
+}

routers/web/web.go

@@ -1281,7 +1281,8 @@ func registerWebRoutes(m *web.Router) {
 				m.Post("/unlock", reqRepoIssuesOrPullsWriter, repo.UnlockIssue)
 				m.Post("/delete", reqRepoAdmin, repo.DeleteIssue)
 				m.Post("/content-history/soft-delete", repo.SoftDeleteContentHistory)
-			})
+				m.Post("/create_branch", web.Bind(forms.NewBranchForm{}), repo.CreateBranchFromIssue)
+			}, context.RepoMustNotBeArchived())
 
 			m.Post("/attachments", repo.UploadIssueAttachment)
 			m.Post("/attachments/remove", repo.DeleteAttachment)

services/forms/repo_branch_form.go

@@ -14,9 +14,11 @@ import (
 
 // NewBranchForm form for creating a new branch
 type NewBranchForm struct {
-	NewBranchName string `binding:"Required;MaxSize(100);GitRefName"`
-	CurrentPath   string
-	CreateTag     bool
+	NewBranchName    string `binding:"Required;MaxSize(100);GitRefName"`
+	RepoID           int64
+	SourceBranchName string
+	CurrentPath      string
+	CreateTag        bool
 }
 
 // Validate validates the fields

services/issue/dev_link.go

@@ -0,0 +1,75 @@
+// Copyright 2024 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package issue
+
+import (
+	"context"
+	"fmt"
+	"sort"
+
+	git_model "code.gitea.io/gitea/models/git"
+	issues_model "code.gitea.io/gitea/models/issues"
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/modules/container"
+)
+
+func FindIssueDevLinksByIssue(ctx context.Context, issue *issues_model.Issue) (issues_model.IssueDevLinks, error) {
+	devLinks, err := issues_model.FindIssueDevLinksByIssueID(ctx, issue.ID)
+	if err != nil {
+		return nil, err
+	}
+
+	if err := issue.LoadRepo(ctx); err != nil {
+		return nil, err
+	}
+
+	sort.Slice(devLinks, func(i, j int) bool {
+		return devLinks[j].LinkType != issues_model.IssueDevLinkTypePullRequest
+	})
+
+	branchPRExists := make(container.Set[string])
+
+	for _, link := range devLinks {
+		link.Repo = issue.Repo
+		if link.LinkedRepoID == 0 {
+			link.LinkedRepoID = issue.RepoID
+		}
+		isSameRepo := issue.RepoID == link.LinkedRepoID
+		if isSameRepo {
+			link.LinkedRepo = issue.Repo
+		} else if link.LinkedRepoID > 0 {
+			repo, err := repo_model.GetRepositoryByID(ctx, link.LinkedRepoID)
+			if err != nil {
+				return nil, err
+			}
+			link.LinkedRepo = repo
+		}
+
+		switch link.LinkType {
+		case issues_model.IssueDevLinkTypePullRequest:
+			pull, err := issues_model.GetPullRequestByID(ctx, link.LinkID)
+			if err != nil {
+				return nil, err
+			}
+			pull.BaseRepo = issue.Repo
+			pull.HeadRepo = link.LinkedRepo
+			if err := pull.LoadIssue(ctx); err != nil {
+				return nil, err
+			}
+			pull.Issue.Repo = issue.Repo
+			link.PullRequest = pull
+			branchPRExists.Add(fmt.Sprintf("%d-%d-%s", link.LinkedRepoID, link.LinkType, pull.HeadBranch))
+		case issues_model.IssueDevLinkTypeBranch:
+			branch, err := git_model.GetBranchByID(ctx, link.LinkID)
+			if err != nil {
+				return nil, err
+			}
+			link.Branch = branch
+			link.Branch.Repo = link.LinkedRepo
+			link.DisplayBranch = !branchPRExists.Contains(fmt.Sprintf("%d-%d-%d", link.LinkedRepoID, link.LinkType, link.LinkID))
+		}
+	}
+
+	return devLinks, nil
+}

services/issue/issue.go

@@ -286,6 +286,16 @@ func deleteIssue(ctx context.Context, issue *issues_model.Issue) ([]string, erro
 				issue.MilestoneID, err)
 		}
 
+		if issue.IsPull {
+			if err := issue.LoadPullRequest(ctx); err != nil {
+				return nil, err
+			}
+			if _, err := db.GetEngine(ctx).Where("link_type = ? AND link_id = ?", issues_model.IssueDevLinkTypePullRequest, issue.PullRequest.ID).
+				Delete(new(issues_model.IssueDevLink)); err != nil {
+				return nil, err
+			}
+		}
+
 		if err := activities_model.DeleteIssueActions(ctx, issue.RepoID, issue.ID, issue.Index); err != nil {
 			return nil, err
 		}
@@ -320,6 +330,7 @@ func deleteIssue(ctx context.Context, issue *issues_model.Issue) ([]string, erro
 			&issues_model.IssueDependency{DependencyID: issue.ID},
 			&issues_model.Comment{DependentIssueID: issue.ID},
 			&issues_model.IssuePin{IssueID: issue.ID},
+			&issues_model.IssueDevLink{IssueID: issue.ID},
 		); err != nil {
 			return nil, err
 		}

services/pull/pull.go

@@ -127,6 +127,35 @@ func NewPullRequest(ctx context.Context, opts *NewPullRequestOptions) error {
 			return err
 		}
 
+		// add dev links
+		if pr.Flow == issues_model.PullRequestFlowGithub {
+			branch, err := git_model.GetBranch(ctx, pr.HeadRepoID, pr.HeadBranch)
+			if err != nil {
+				return err
+			}
+
+			devLinks := make(issues_model.IssueDevLinks, 0, 5)
+			if err := db.GetEngine(ctx).
+				Join("INNER", "issue", "issue_dev_link.issue_id = issue.id").
+				Where("link_type = ? AND link_id = ? AND linked_repo_id = ?",
+					issues_model.IssueDevLinkTypeBranch, branch.ID, issue.RepoID).
+				And("issue.repo_id=?", pr.HeadRepoID).
+				Find(&devLinks); err != nil {
+				return err
+			}
+
+			for _, link := range devLinks {
+				if err := issues_model.CreateIssueDevLink(ctx, &issues_model.IssueDevLink{
+					IssueID:      link.IssueID,
+					LinkType:     issues_model.IssueDevLinkTypePullRequest,
+					LinkedRepoID: pr.HeadRepoID,
+					LinkID:       pr.ID,
+				}); err != nil {
+					return err
+				}
+			}
+		}
+
 		// Update Commit Divergence
 		err = syncCommitDivergence(ctx, pr)
 		if err != nil {

services/repository/branch.go

@@ -508,6 +508,22 @@ func CanDeleteBranch(ctx context.Context, repo *repo_model.Repository, branchNam
 	return nil
 }
 
+func DeleteIssueDevLinkByBranchName(ctx context.Context, repoID int64, branchName string) error {
+	awBranch, err := git_model.GetBranch(ctx, repoID, branchName)
+	if err != nil && !git_model.IsErrBranchNotExist(err) {
+		return fmt.Errorf("GetBranch: %vc", err)
+	}
+	if awBranch == nil {
+		return nil
+	}
+
+	_, err = db.GetEngine(ctx).
+		Where("linked_repo_id = ? AND link_type = ? AND link_id = ?",
+			repoID, issues_model.IssueDevLinkTypeBranch, awBranch.ID).
+		Delete(new(issues_model.IssueDevLink))
+	return err
+}
+
 // DeleteBranch delete branch
 func DeleteBranch(ctx context.Context, doer *user_model.User, repo *repo_model.Repository, gitRepo *git.Repository, branchName string, pr *issues_model.PullRequest) error {
 	err := repo.MustNotBeArchived()
@@ -539,6 +555,9 @@ func DeleteBranch(ctx context.Context, doer *user_model.User, repo *repo_model.R
 			}
 		}
 
+		if err := DeleteIssueDevLinkByBranchName(ctx, repo.ID, branchName); err != nil {
+			return err
+		}
 		if pr != nil {
 			if err := issues_model.AddDeletePRBranchComment(ctx, doer, pr.BaseRepo, pr.Issue.ID, pr.HeadBranch); err != nil {
 				return fmt.Errorf("DeleteBranch: %v", err)

services/repository/delete.go

@@ -188,17 +188,18 @@ func DeleteRepositoryDirectly(ctx context.Context, repoID int64, ignoreOrgTeams
 		return err
 	}
 
-	// Delete Pulls and related objects
-	if err := issues_model.DeletePullsByBaseRepoID(ctx, repoID); err != nil {
-		return err
-	}
-
 	// Delete Issues and related objects
 	var attachmentPaths []string
 	if attachmentPaths, err = issue_service.DeleteIssuesByRepoID(ctx, repoID); err != nil {
 		return err
 	}
 
+	// Delete Pulls and related objects
+	// Notice: we should delete issue first because issue may load pull request
+	if err := issues_model.DeletePullsByBaseRepoID(ctx, repoID); err != nil {
+		return err
+	}
+
 	// Delete issue index
 	if err := db.DeleteResourceIndex(ctx, "issue_index", repoID); err != nil {
 		return err

templates/repo/issue/sidebar/development.tmpl

@@ -0,0 +1,105 @@
+{{if not .Issue.IsPull}}
+	<div class="divider"></div>
+
+	<span class="text"><strong>{{ctx.Locale.Tr "repo.issues.development"}}</strong></span>
+	<div class="ui devlinks list">
+	{{/* AllowedRepos not empty means login user can create new branch in some of the repositories */}}
+	{{if .ShowCreateBranchLink}}
+		<div class="tw-items-center">
+			<a class="tw-mt-1 fluid ui show-modal" data-modal="#create_branch">{{ctx.Locale.Tr "repo.branch.new_branch"}}</a>
+		</div>
+	{{end}}
+	{{range .DevLinks}}
+		{{if .PullRequest}}
+			<div class="tw-flex tw-items-center tw-overflow-hidden tw-max-w-full tw-mt-2">
+				<span class="tw-mr-1">{{template "shared/issueicon" .PullRequest.Issue}}</span>
+				<a href="{{.PullRequest.Issue.Link}}" class="ref-issue item tw-overflow-hidden gt-ellipsis tw-whitespace-nowrap">
+					{{.PullRequest.Issue.Title}}
+				</a>
+			</div>
+			<div>
+			{{ctx.Locale.Tr "repo.issues.link.created" (DateUtils.AbsoluteShort .PullRequest.Issue.CreatedUnix)}}
+			{{if .PullRequest.HasMerged}}
+				{{ctx.Locale.Tr "repo.issues.pr.completed"}}
+				</div>
+				<div class="tw-flex tw-items-center tw-overflow-hidden tw-max-w-full">
+				{{svg "octicon-git-commit" 14 "tw-mr-1"}} <a href="{{.PullRequest.BaseRepo.Link}}/src/commit/{{.PullRequest.MergedCommitID}}" data-tooltip-content="{{.PullRequest.MergedCommitID}}" class="tw-overflow-hidden gt-ellipsis tw-whitespace-nowrap">{{.PullRequest.MergedCommitID | ShortSha}}</a>
+				</div>
+				<div>
+				{{ctx.Locale.Tr "repo.issues.link.created" (DateUtils.AbsoluteShort .PullRequest.MergedUnix)}}
+			{{else if .PullRequest.ChangedProtectedFiles}}
+				{{ctx.Locale.Tr "repo.issues.pr.conflicted"}}
+			{{end}}
+			</div>
+		{{else if and .Branch .DisplayBranch}}
+			<div class="tw-flex tw-justify-between tw-items-center tw-mt-2">
+				<div class="tw-flex tw-left tw-items-center tw-overflow-hidden tw-max-w-full">
+					{{svg "octicon-git-branch" 14 "tw-mr-1"}}
+					<a href="{{.Branch.Repo.Link}}/src/branch/{{.Branch.Name}}" data-tooltip-content="{{.BranchFullName}}" class="tw-overflow-hidden gt-ellipsis tw-whitespace-nowrap">
+						{{.BranchFullName}}
+					</a>
+				</div>
+				<div class="tw-right tw-items-center">
+					<a class="ui button mini compact basic icon" href="{{$.Issue.Repo.Link}}/compare/{{$.Issue.Repo.DefaultBranch}}...{{.Branch.Repo.FullName}}:{{.Branch.Name}}?ref_issue_index={{$.Issue.Index}}">
+					{{svg "octicon-git-pull-request"}}
+					</a>
+				</div>
+			</div>
+			<div>{{ctx.Locale.Tr "repo.issues.branch.latest" (DateUtils.AbsoluteShort .Branch.CommitTime)}}</div>
+		{{end}}
+	{{end}}
+	</div>
+
+	<div class="ui tiny modal" id="create_branch">
+		<div class="header">
+			{{ctx.Locale.Tr "repo.branch.new_branch"}}
+		</div>
+		<div class="content">
+			<form class="ui form form-fetch-action" action="{{.Issue.Link}}/create_branch"
+				method="post">
+				{{.CsrfTokenHtml}}
+				<div class="required field">
+					<label for="new_branch_name">{{ctx.Locale.Tr "form.NewBranchName"}}</label>
+					<input name="new_branch_name" type="text" required>
+				</div>
+
+				<div class="required field">
+					<label for="source_repository">{{ctx.Locale.Tr "repo.issues.create_branch_from_repository"}}</label>
+					<div class="ui selection dropdown ellipsis-items-nowrap">
+						<input type="hidden" name="repo_id" value="{{.Issue.Repo.ID}}">
+						<div class="text">
+							<strong id="repo-branch-current">{{.Issue.Repo.FullName}}</strong>
+						</div>
+						{{svg "octicon-triangle-down" 14 "dropdown icon"}}
+						<div class="menu">
+							{{range .AllowedRepos}}
+								<div class="item" data-value="{{.ID}}" title="{{.FullName}}">{{.FullName}}</div>
+							{{end}}
+						</div>
+					</div>
+				</div>
+
+				<div class="required field">
+					<label for="source_branch_name">{{ctx.Locale.Tr "repo.issues.base_branch"}}</label>
+					<div class="ui selection dropdown ellipsis-items-nowrap">
+						<input type="hidden" name="source_branch_name" value="{{.Issue.Repo.DefaultBranch}}">
+						<div class="text">
+							<strong id="repo-branch-current">{{.Issue.Repo.DefaultBranch}}</strong>
+						</div>
+						{{svg "octicon-triangle-down" 14 "dropdown icon"}}
+						<div class="menu">
+							{{range .Branches}}
+								<div class="item" data-value="{{.}}" title="{{.}}">{{.}}</div>
+							{{end}}
+						</div>
+					</div>
+				</div>
+
+				<div class="text right actions">
+					<button class="ui cancel button">{{ctx.Locale.Tr "settings.cancel"}}</button>
+					<button class="ui primary button">{{ctx.Locale.Tr "repo.branch.new_branch"}}</button>
+				</div>
+			</form>
+		</div>
+	</div>
+{{end}}

templates/repo/issue/view_content/sidebar.tmpl

@@ -15,6 +15,7 @@
 	{{end}}
 	{{template "repo/issue/sidebar/assignee_list" $.IssuePageMetaData}}
 
+	{{template "repo/issue/sidebar/development" .}}
 	{{template "repo/issue/sidebar/participant_list" $}}
 	{{template "repo/issue/sidebar/watch_notification" $}}
 	{{template "repo/issue/sidebar/stopwatch_timetracker" $}}

templates/repo/issue/view_title.tmpl

@@ -133,6 +133,10 @@
 					·
 					{{ctx.Locale.TrN .Issue.NumComments "repo.issues.num_comments_1" "repo.issues.num_comments" .Issue.NumComments}}
 				</span>
+				{{if .MaybeFixed}}
+					{{$fixedStr := HTMLFormat `<a href="%s" class="ref-issue">#%d</a>` .MaybeFixed.Issue.Link .MaybeFixed.Index}}
+					· <span>{{ctx.Locale.Tr "repo.issues.maybefixed" $fixedStr}}</span>
+				{{end}}
 			{{end}}
 		</div>
 	</div>

tests/integration/api_branch_test.go

@@ -303,7 +303,7 @@ func TestAPICreateBranchWithSyncBranches(t *testing.T) {
 		RepoID: 1,
 	})
 	assert.NoError(t, err)
-	assert.Len(t, branches, 8)
+	assert.Len(t, branches, 9)
 
 	// make a broke repository with no branch on database
 	_, err = db.DeleteByBean(t.Context(), git_model.Branch{RepoID: 1})
@@ -320,7 +320,7 @@ func TestAPICreateBranchWithSyncBranches(t *testing.T) {
 		RepoID: 1,
 	})
 	assert.NoError(t, err)
-	assert.Len(t, branches, 9)
+	assert.Len(t, branches, 10)
 
 	branches, err = db.Find[git_model.Branch](t.Context(), git_model.FindBranchOptions{
 		RepoID:  1,

tests/integration/pull_merge_test.go

@@ -405,11 +405,11 @@ func TestCantMergeUnrelated(t *testing.T) {
 		assert.NoError(t, err)
 		commitSha := strings.TrimSpace(stdout.String())
 
-		_, _, err = gitcmd.NewCommand("branch", "unrelated").
-			AddDynamicArguments(commitSha).
-			WithDir(path).
-			RunStdString(t.Context())
+		gitRepo1, err := gitrepo.OpenRepository(t.Context(), repo1)
 		assert.NoError(t, err)
+		defer gitRepo1.Close()
+
+		assert.NoError(t, repo_service.CreateNewBranchFromCommit(t.Context(), user1, repo1, commitSha, "unrelated"))
 
 		testEditFileToNewBranch(t, session, "user1", "repo1", "master", "conflict", "README.md", "Hello, World (Edited Once)\n")
 
@@ -423,8 +423,6 @@ func TestCantMergeUnrelated(t *testing.T) {
 		session.MakeRequest(t, req, http.StatusCreated)
 
 		// Now this PR could be marked conflict - or at least a race may occur - so drop down to pure code at this point...
-		gitRepo, err := gitrepo.OpenRepository(t.Context(), repo1)
-		assert.NoError(t, err)
 		pr := unittest.AssertExistsAndLoadBean(t, &issues_model.PullRequest{
 			HeadRepoID: repo1.ID,
 			BaseRepoID: repo1.ID,
@@ -432,10 +430,9 @@ func TestCantMergeUnrelated(t *testing.T) {
 			BaseBranch: "base",
 		})
 
-		err = pull_service.Merge(t.Context(), pr, user1, gitRepo, repo_model.MergeStyleMerge, "", "UNRELATED", false)
+		err = pull_service.Merge(t.Context(), pr, user1, gitRepo1, repo_model.MergeStyleMerge, "", "UNRELATED", false)
 		assert.Error(t, err, "Merge should return an error due to unrelated")
 		assert.True(t, pull_service.IsErrMergeUnrelatedHistories(err), "Merge error is not a unrelated histories error")
-		gitRepo.Close()
 	})
 }