Add a new section named development in issue view sidebar to interact with branch/pr

routers/web/repo/issue_dev.go

@@ -0,0 +1,56 @@
+// Copyright 2024 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package repo
+
+import (
+	"net/http"
+
+	issues_model "code.gitea.io/gitea/models/issues"
+	"code.gitea.io/gitea/modules/web"
+	"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) {
+	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.Redirect(issue.Link(), http.StatusSeeOther)
+		return
+	}
+
+	form := web.GetForm(ctx).(*forms.NewBranchForm)
+	if !ctx.Repo.CanCreateBranch() {
+		ctx.NotFound("CreateBranch", nil)
+		return
+	}
+
+	if ctx.HasError() {
+		ctx.Flash.Error(ctx.GetErrMsg())
+		ctx.Redirect(ctx.Repo.RepoLink + "/src/" + ctx.Repo.BranchNameSubURL())
+		return
+	}
+
+	if err := repo_service.CreateNewBranch(ctx, ctx.Doer, ctx.Repo.Repository, ctx.Repo.GitRepo, form.SourceBranchName, form.NewBranchName); err != nil {
+		handleCreateBranchError(ctx, err, form)
+		return
+	}
+
+	if err := issues_model.CreateIssueDevLink(ctx, &issues_model.IssueDevLink{
+		IssueID:   issue.ID,
+		LinkType:  issues_model.IssueDevLinkTypeBranch,
+		LinkIndex: form.NewBranchName,
+	}); err != nil {
+		ctx.ServerError("CreateIssueDevLink", err)
+		return
+	}
+
+	ctx.Flash.Success(ctx.Tr("repo.issues.create_branch_from_issue_success", ctx.Repo.BranchName))
+	ctx.Redirect(issue.Link())
+}