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mirror of https://github.com/go-gitea/gitea.git synced 2025-07-23 14:08:38 +02:00
gitea/routers/web/repo/branch.go
Dan Čermák b8c9a0c323
Add ff_only parameter to POST /repos/{owner}/{repo}/merge-upstream (#34770)
The merge-upstream route was so far performing any kind of merge, even
those that would create merge commits and thus make your branch diverge
from upstream, requiring manual intervention via the git cli to undo the
damage.

With the new optional parameter ff_only, we can instruct gitea to error
out, if a non-fast-forward merge would be performed.
2025-06-19 12:29:10 -07:00

275 lines
9.5 KiB
Go

// Copyright 2014 The Gogs Authors. All rights reserved.
// Copyright 2018 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package repo
import (
"errors"
"fmt"
"net/http"
"net/url"
"strings"
git_model "code.gitea.io/gitea/models/git"
repo_model "code.gitea.io/gitea/models/repo"
"code.gitea.io/gitea/models/unit"
"code.gitea.io/gitea/modules/git"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/optional"
repo_module "code.gitea.io/gitea/modules/repository"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/templates"
"code.gitea.io/gitea/modules/util"
"code.gitea.io/gitea/modules/web"
"code.gitea.io/gitea/routers/utils"
"code.gitea.io/gitea/services/context"
"code.gitea.io/gitea/services/forms"
pull_service "code.gitea.io/gitea/services/pull"
release_service "code.gitea.io/gitea/services/release"
repo_service "code.gitea.io/gitea/services/repository"
)
const (
tplBranch templates.TplName = "repo/branch/list"
)
// Branches render repository branch page
func Branches(ctx *context.Context) {
ctx.Data["Title"] = "Branches"
ctx.Data["AllowsPulls"] = ctx.Repo.Repository.AllowsPulls(ctx)
ctx.Data["IsWriter"] = ctx.Repo.CanWrite(unit.TypeCode)
ctx.Data["IsMirror"] = ctx.Repo.Repository.IsMirror
ctx.Data["CanPull"] = ctx.Repo.CanWrite(unit.TypeCode) ||
(ctx.IsSigned && repo_model.HasForkedRepo(ctx, ctx.Doer.ID, ctx.Repo.Repository.ID))
ctx.Data["PageIsViewCode"] = true
ctx.Data["PageIsBranches"] = true
page := max(ctx.FormInt("page"), 1)
pageSize := setting.Git.BranchesRangeSize
kw := ctx.FormString("q")
defaultBranch, branches, branchesCount, err := repo_service.LoadBranches(ctx, ctx.Repo.Repository, ctx.Repo.GitRepo, optional.None[bool](), kw, page, pageSize)
if err != nil {
ctx.ServerError("LoadBranches", err)
return
}
commitIDs := []string{defaultBranch.DBBranch.CommitID}
for _, branch := range branches {
commitIDs = append(commitIDs, branch.DBBranch.CommitID)
}
commitStatuses, err := git_model.GetLatestCommitStatusForRepoCommitIDs(ctx, ctx.Repo.Repository.ID, commitIDs)
if err != nil {
ctx.ServerError("LoadBranches", err)
return
}
if !ctx.Repo.CanRead(unit.TypeActions) {
for key := range commitStatuses {
git_model.CommitStatusesHideActionsURL(ctx, commitStatuses[key])
}
}
commitStatus := make(map[string]*git_model.CommitStatus)
for commitID, cs := range commitStatuses {
commitStatus[commitID] = git_model.CalcCommitStatus(cs)
}
ctx.Data["Keyword"] = kw
ctx.Data["Branches"] = branches
ctx.Data["CommitStatus"] = commitStatus
ctx.Data["CommitStatuses"] = commitStatuses
ctx.Data["DefaultBranchBranch"] = defaultBranch
pager := context.NewPagination(int(branchesCount), pageSize, page, 5)
pager.AddParamFromRequest(ctx.Req)
ctx.Data["Page"] = pager
ctx.HTML(http.StatusOK, tplBranch)
}
// DeleteBranchPost responses for delete merged branch
func DeleteBranchPost(ctx *context.Context) {
defer jsonRedirectBranches(ctx)
branchName := ctx.FormString("name")
if err := repo_service.DeleteBranch(ctx, ctx.Doer, ctx.Repo.Repository, ctx.Repo.GitRepo, branchName, nil); err != nil {
switch {
case git.IsErrBranchNotExist(err):
log.Debug("DeleteBranch: Can't delete non existing branch '%s'", branchName)
ctx.Flash.Error(ctx.Tr("repo.branch.deletion_failed", branchName))
case errors.Is(err, repo_service.ErrBranchIsDefault):
log.Debug("DeleteBranch: Can't delete default branch '%s'", branchName)
ctx.Flash.Error(ctx.Tr("repo.branch.default_deletion_failed", branchName))
case errors.Is(err, git_model.ErrBranchIsProtected):
log.Debug("DeleteBranch: Can't delete protected branch '%s'", branchName)
ctx.Flash.Error(ctx.Tr("repo.branch.protected_deletion_failed", branchName))
default:
log.Error("DeleteBranch: %v", err)
ctx.Flash.Error(ctx.Tr("repo.branch.deletion_failed", branchName))
}
return
}
ctx.Flash.Success(ctx.Tr("repo.branch.deletion_success", branchName))
}
// RestoreBranchPost responses for delete merged branch
func RestoreBranchPost(ctx *context.Context) {
defer jsonRedirectBranches(ctx)
branchID := ctx.FormInt64("branch_id")
branchName := ctx.FormString("name")
deletedBranch, err := git_model.GetDeletedBranchByID(ctx, ctx.Repo.Repository.ID, branchID)
if err != nil {
log.Error("GetDeletedBranchByID: %v", err)
ctx.Flash.Error(ctx.Tr("repo.branch.restore_failed", branchName))
return
} else if deletedBranch == nil {
log.Debug("RestoreBranch: Can't restore branch[%d] '%s', as it does not exist", branchID, branchName)
ctx.Flash.Error(ctx.Tr("repo.branch.restore_failed", branchName))
return
}
if err := git.Push(ctx, ctx.Repo.Repository.RepoPath(), git.PushOptions{
Remote: ctx.Repo.Repository.RepoPath(),
Branch: fmt.Sprintf("%s:%s%s", deletedBranch.CommitID, git.BranchPrefix, deletedBranch.Name),
Env: repo_module.PushingEnvironment(ctx.Doer, ctx.Repo.Repository),
}); err != nil {
if strings.Contains(err.Error(), "already exists") {
log.Debug("RestoreBranch: Can't restore branch '%s', since one with same name already exist", deletedBranch.Name)
ctx.Flash.Error(ctx.Tr("repo.branch.already_exists", deletedBranch.Name))
return
}
log.Error("RestoreBranch: CreateBranch: %v", err)
ctx.Flash.Error(ctx.Tr("repo.branch.restore_failed", deletedBranch.Name))
return
}
objectFormat := git.ObjectFormatFromName(ctx.Repo.Repository.ObjectFormatName)
// Don't return error below this
if err := repo_service.PushUpdate(
&repo_module.PushUpdateOptions{
RefFullName: git.RefNameFromBranch(deletedBranch.Name),
OldCommitID: objectFormat.EmptyObjectID().String(),
NewCommitID: deletedBranch.CommitID,
PusherID: ctx.Doer.ID,
PusherName: ctx.Doer.Name,
RepoUserName: ctx.Repo.Owner.Name,
RepoName: ctx.Repo.Repository.Name,
}); err != nil {
log.Error("RestoreBranch: Update: %v", err)
}
ctx.Flash.Success(ctx.Tr("repo.branch.restore_success", deletedBranch.Name))
}
func jsonRedirectBranches(ctx *context.Context) {
ctx.JSONRedirect(ctx.Repo.RepoLink + "/branches?page=" + url.QueryEscape(ctx.FormString("page")))
}
// CreateBranch creates new branch in repository
func CreateBranch(ctx *context.Context) {
form := web.GetForm(ctx).(*forms.NewBranchForm)
if !ctx.Repo.CanCreateBranch() {
ctx.NotFound(nil)
return
}
if ctx.HasError() {
ctx.Flash.Error(ctx.GetErrMsg())
ctx.Redirect(ctx.Repo.RepoLink + "/src/" + ctx.Repo.RefTypeNameSubURL())
return
}
var err error
if form.CreateTag {
target := ctx.Repo.CommitID
if ctx.Repo.RefFullName.IsBranch() {
target = ctx.Repo.BranchName
}
err = release_service.CreateNewTag(ctx, ctx.Doer, ctx.Repo.Repository, target, form.NewBranchName, "")
} else if ctx.Repo.RefFullName.IsBranch() {
err = repo_service.CreateNewBranch(ctx, ctx.Doer, ctx.Repo.Repository, ctx.Repo.GitRepo, ctx.Repo.BranchName, form.NewBranchName)
} else {
err = repo_service.CreateNewBranchFromCommit(ctx, ctx.Doer, ctx.Repo.Repository, ctx.Repo.GitRepo, ctx.Repo.CommitID, form.NewBranchName)
}
if err != nil {
if release_service.IsErrProtectedTagName(err) {
ctx.Flash.Error(ctx.Tr("repo.release.tag_name_protected"))
ctx.Redirect(ctx.Repo.RepoLink + "/src/" + ctx.Repo.RefTypeNameSubURL())
return
}
if release_service.IsErrTagAlreadyExists(err) {
e := err.(release_service.ErrTagAlreadyExists)
ctx.Flash.Error(ctx.Tr("repo.branch.tag_collision", e.TagName))
ctx.Redirect(ctx.Repo.RepoLink + "/src/" + ctx.Repo.RefTypeNameSubURL())
return
}
if git_model.IsErrBranchAlreadyExists(err) || git.IsErrPushOutOfDate(err) {
ctx.Flash.Error(ctx.Tr("repo.branch.branch_already_exists", form.NewBranchName))
ctx.Redirect(ctx.Repo.RepoLink + "/src/" + ctx.Repo.RefTypeNameSubURL())
return
}
if git_model.IsErrBranchNameConflict(err) {
e := err.(git_model.ErrBranchNameConflict)
ctx.Flash.Error(ctx.Tr("repo.branch.branch_name_conflict", form.NewBranchName, e.BranchName))
ctx.Redirect(ctx.Repo.RepoLink + "/src/" + ctx.Repo.RefTypeNameSubURL())
return
}
if 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.Flash.Error(flashError)
}
ctx.Redirect(ctx.Repo.RepoLink + "/src/" + ctx.Repo.RefTypeNameSubURL())
return
}
ctx.ServerError("CreateNewBranch", err)
return
}
if form.CreateTag {
ctx.Flash.Success(ctx.Tr("repo.tag.create_success", form.NewBranchName))
ctx.Redirect(ctx.Repo.RepoLink + "/src/tag/" + util.PathEscapeSegments(form.NewBranchName))
return
}
ctx.Flash.Success(ctx.Tr("repo.branch.create_success", form.NewBranchName))
ctx.Redirect(ctx.Repo.RepoLink + "/src/branch/" + util.PathEscapeSegments(form.NewBranchName) + "/" + util.PathEscapeSegments(form.CurrentPath))
}
func MergeUpstream(ctx *context.Context) {
branchName := ctx.FormString("branch")
_, err := repo_service.MergeUpstream(ctx, ctx.Doer, ctx.Repo.Repository, branchName, false)
if err != nil {
if errors.Is(err, util.ErrNotExist) {
ctx.JSONErrorNotFound()
return
} else if pull_service.IsErrMergeConflicts(err) {
ctx.JSONError(ctx.Tr("repo.pulls.merge_conflict"))
return
}
ctx.ServerError("MergeUpstream", err)
return
}
ctx.JSONRedirect("")
}