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gitea/routers/web/repo/branch.go
zeripath 9e6e1dc950
Improve checkBranchName (#17901)
The current implementation of checkBranchName is highly inefficient
involving opening the repository, the listing all of the branch names
checking them individually before then using using opened repo to get
the tags.

This PR avoids this by simply walking the references from show-ref
instead of opening the repository (in the nogogit case).

Signed-off-by: Andrew Thornton <art27@cantab.net>
2021-12-08 19:08:16 +00:00

409 lines
12 KiB
Go

// Copyright 2014 The Gogs Authors. All rights reserved.
// Copyright 2018 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 repo
import (
"errors"
"fmt"
"net/http"
"strings"
"code.gitea.io/gitea/models"
"code.gitea.io/gitea/models/unit"
"code.gitea.io/gitea/modules/base"
"code.gitea.io/gitea/modules/context"
"code.gitea.io/gitea/modules/git"
"code.gitea.io/gitea/modules/log"
repo_module "code.gitea.io/gitea/modules/repository"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/util"
"code.gitea.io/gitea/modules/web"
"code.gitea.io/gitea/routers/utils"
"code.gitea.io/gitea/services/forms"
release_service "code.gitea.io/gitea/services/release"
repo_service "code.gitea.io/gitea/services/repository"
files_service "code.gitea.io/gitea/services/repository/files"
)
const (
tplBranch base.TplName = "repo/branch/list"
)
// Branch contains the branch information
type Branch struct {
Name string
Commit *git.Commit
IsProtected bool
IsDeleted bool
IsIncluded bool
DeletedBranch *models.DeletedBranch
CommitsAhead int
CommitsBehind int
LatestPullRequest *models.PullRequest
MergeMovedOn bool
}
// Branches render repository branch page
func Branches(ctx *context.Context) {
ctx.Data["Title"] = "Branches"
ctx.Data["IsRepoToolbarBranches"] = true
ctx.Data["DefaultBranch"] = ctx.Repo.Repository.DefaultBranch
ctx.Data["AllowsPulls"] = ctx.Repo.Repository.AllowsPulls()
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 && models.HasForkedRepo(ctx.User.ID, ctx.Repo.Repository.ID))
ctx.Data["PageIsViewCode"] = true
ctx.Data["PageIsBranches"] = true
page := ctx.FormInt("page")
if page <= 1 {
page = 1
}
limit := ctx.FormInt("limit")
if limit <= 0 || limit > setting.Git.BranchesRangeSize {
limit = setting.Git.BranchesRangeSize
}
skip := (page - 1) * limit
log.Debug("Branches: skip: %d limit: %d", skip, limit)
branches, branchesCount := loadBranches(ctx, skip, limit)
if ctx.Written() {
return
}
ctx.Data["Branches"] = branches
pager := context.NewPagination(int(branchesCount), setting.Git.BranchesRangeSize, page, 5)
pager.SetDefaultParams(ctx)
ctx.Data["Page"] = pager
ctx.HTML(http.StatusOK, tplBranch)
}
// DeleteBranchPost responses for delete merged branch
func DeleteBranchPost(ctx *context.Context) {
defer redirect(ctx)
branchName := ctx.FormString("name")
if err := repo_service.DeleteBranch(ctx.User, ctx.Repo.Repository, ctx.Repo.GitRepo, branchName); 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, repo_service.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 redirect(ctx)
branchID := ctx.FormInt64("branch_id")
branchName := ctx.FormString("name")
deletedBranch, err := ctx.Repo.Repository.GetDeletedBranchByID(branchID)
if err != nil {
log.Error("GetDeletedBranchByID: %v", err)
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.Commit, git.BranchPrefix, deletedBranch.Name),
Env: models.PushingEnvironment(ctx.User, 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
}
// Don't return error below this
if err := repo_service.PushUpdate(
&repo_module.PushUpdateOptions{
RefFullName: git.BranchPrefix + deletedBranch.Name,
OldCommitID: git.EmptySHA,
NewCommitID: deletedBranch.Commit,
PusherID: ctx.User.ID,
PusherName: ctx.User.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 redirect(ctx *context.Context) {
ctx.JSON(http.StatusOK, map[string]interface{}{
"redirect": ctx.Repo.RepoLink + "/branches",
})
}
// loadBranches loads branches from the repository limited by page & pageSize.
// NOTE: May write to context on error.
func loadBranches(ctx *context.Context, skip, limit int) ([]*Branch, int) {
defaultBranch, err := ctx.Repo.GitRepo.GetBranch(ctx.Repo.Repository.DefaultBranch)
if err != nil {
log.Error("loadBranches: get default branch: %v", err)
ctx.ServerError("GetDefaultBranch", err)
return nil, 0
}
rawBranches, totalNumOfBranches, err := ctx.Repo.GitRepo.GetBranches(skip, limit)
if err != nil {
log.Error("GetBranches: %v", err)
ctx.ServerError("GetBranches", err)
return nil, 0
}
protectedBranches, err := ctx.Repo.Repository.GetProtectedBranches()
if err != nil {
ctx.ServerError("GetProtectedBranches", err)
return nil, 0
}
repoIDToRepo := map[int64]*models.Repository{}
repoIDToRepo[ctx.Repo.Repository.ID] = ctx.Repo.Repository
repoIDToGitRepo := map[int64]*git.Repository{}
repoIDToGitRepo[ctx.Repo.Repository.ID] = ctx.Repo.GitRepo
var branches []*Branch
for i := range rawBranches {
if rawBranches[i].Name == defaultBranch.Name {
// Skip default branch
continue
}
var branch = loadOneBranch(ctx, rawBranches[i], protectedBranches, repoIDToRepo, repoIDToGitRepo)
if branch == nil {
return nil, 0
}
branches = append(branches, branch)
}
// Always add the default branch
log.Debug("loadOneBranch: load default: '%s'", defaultBranch.Name)
branches = append(branches, loadOneBranch(ctx, defaultBranch, protectedBranches, repoIDToRepo, repoIDToGitRepo))
if ctx.Repo.CanWrite(unit.TypeCode) {
deletedBranches, err := getDeletedBranches(ctx)
if err != nil {
ctx.ServerError("getDeletedBranches", err)
return nil, 0
}
branches = append(branches, deletedBranches...)
}
return branches, totalNumOfBranches
}
func loadOneBranch(ctx *context.Context, rawBranch *git.Branch, protectedBranches []*models.ProtectedBranch,
repoIDToRepo map[int64]*models.Repository,
repoIDToGitRepo map[int64]*git.Repository) *Branch {
log.Trace("loadOneBranch: '%s'", rawBranch.Name)
commit, err := rawBranch.GetCommit()
if err != nil {
ctx.ServerError("GetCommit", err)
return nil
}
branchName := rawBranch.Name
var isProtected bool
for _, b := range protectedBranches {
if b.BranchName == branchName {
isProtected = true
break
}
}
divergence, divergenceError := files_service.CountDivergingCommits(ctx.Repo.Repository, git.BranchPrefix+branchName)
if divergenceError != nil {
ctx.ServerError("CountDivergingCommits", divergenceError)
return nil
}
pr, err := models.GetLatestPullRequestByHeadInfo(ctx.Repo.Repository.ID, branchName)
if err != nil {
ctx.ServerError("GetLatestPullRequestByHeadInfo", err)
return nil
}
headCommit := commit.ID.String()
mergeMovedOn := false
if pr != nil {
pr.HeadRepo = ctx.Repo.Repository
if err := pr.LoadIssue(); err != nil {
ctx.ServerError("pr.LoadIssue", err)
return nil
}
if repo, ok := repoIDToRepo[pr.BaseRepoID]; ok {
pr.BaseRepo = repo
} else if err := pr.LoadBaseRepo(); err != nil {
ctx.ServerError("pr.LoadBaseRepo", err)
return nil
} else {
repoIDToRepo[pr.BaseRepoID] = pr.BaseRepo
}
pr.Issue.Repo = pr.BaseRepo
if pr.HasMerged {
baseGitRepo, ok := repoIDToGitRepo[pr.BaseRepoID]
if !ok {
baseGitRepo, err = git.OpenRepository(pr.BaseRepo.RepoPath())
if err != nil {
ctx.ServerError("OpenRepository", err)
return nil
}
defer baseGitRepo.Close()
repoIDToGitRepo[pr.BaseRepoID] = baseGitRepo
}
pullCommit, err := baseGitRepo.GetRefCommitID(pr.GetGitRefName())
if err != nil && !git.IsErrNotExist(err) {
ctx.ServerError("GetBranchCommitID", err)
return nil
}
if err == nil && headCommit != pullCommit {
// the head has moved on from the merge - we shouldn't delete
mergeMovedOn = true
}
}
}
isIncluded := divergence.Ahead == 0 && ctx.Repo.Repository.DefaultBranch != branchName
return &Branch{
Name: branchName,
Commit: commit,
IsProtected: isProtected,
IsIncluded: isIncluded,
CommitsAhead: divergence.Ahead,
CommitsBehind: divergence.Behind,
LatestPullRequest: pr,
MergeMovedOn: mergeMovedOn,
}
}
func getDeletedBranches(ctx *context.Context) ([]*Branch, error) {
branches := []*Branch{}
deletedBranches, err := ctx.Repo.Repository.GetDeletedBranches()
if err != nil {
return branches, err
}
for i := range deletedBranches {
deletedBranches[i].LoadUser()
branches = append(branches, &Branch{
Name: deletedBranches[i].Name,
IsDeleted: true,
DeletedBranch: deletedBranches[i],
})
}
return branches, nil
}
// CreateBranch creates new branch in repository
func CreateBranch(ctx *context.Context) {
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
}
var err error
if form.CreateTag {
target := ctx.Repo.CommitID
if ctx.Repo.IsViewBranch {
target = ctx.Repo.BranchName
}
err = release_service.CreateNewTag(ctx.User, ctx.Repo.Repository, target, form.NewBranchName, "")
} else if ctx.Repo.IsViewBranch {
err = repo_service.CreateNewBranch(ctx.User, ctx.Repo.Repository, ctx.Repo.BranchName, form.NewBranchName)
} else {
err = repo_service.CreateNewBranchFromCommit(ctx.User, ctx.Repo.Repository, ctx.Repo.CommitID, form.NewBranchName)
}
if err != nil {
if models.IsErrTagAlreadyExists(err) {
e := err.(models.ErrTagAlreadyExists)
ctx.Flash.Error(ctx.Tr("repo.branch.tag_collision", e.TagName))
ctx.Redirect(ctx.Repo.RepoLink + "/src/" + ctx.Repo.BranchNameSubURL())
return
}
if models.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.BranchNameSubURL())
return
}
if models.IsErrBranchNameConflict(err) {
e := err.(models.ErrBranchNameConflict)
ctx.Flash.Error(ctx.Tr("repo.branch.branch_name_conflict", form.NewBranchName, e.BranchName))
ctx.Redirect(ctx.Repo.RepoLink + "/src/" + ctx.Repo.BranchNameSubURL())
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.HTMLString(string(tplAlertDetails), map[string]interface{}{
"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.BranchNameSubURL())
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))
}