mirror of
https://codeberg.org/forgejo/forgejo.git
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474d636794
* Update code.gitea.io/git * Update function calls * govendor fetch
223 lines
6.7 KiB
Go
223 lines
6.7 KiB
Go
// Copyright 2015 The Gogs Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package models
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import (
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"fmt"
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"io/ioutil"
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"net/url"
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"os"
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"path"
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"path/filepath"
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"strings"
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"github.com/Unknwon/com"
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"code.gitea.io/git"
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"code.gitea.io/gitea/modules/setting"
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"code.gitea.io/gitea/modules/sync"
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)
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var (
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reservedWikiPaths = []string{"_pages", "_new", "_edit"}
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wikiWorkingPool = sync.NewExclusivePool()
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)
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// ToWikiPageURL formats a string to corresponding wiki URL name.
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func ToWikiPageURL(name string) string {
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return url.QueryEscape(strings.Replace(name, " ", "-", -1))
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}
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// ToWikiPageName formats a URL back to corresponding wiki page name,
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// and removes leading characters './' to prevent changing files
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// that are not belong to wiki repository.
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func ToWikiPageName(urlString string) string {
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name, _ := url.QueryUnescape(strings.Replace(urlString, "-", " ", -1))
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name = strings.Replace(name, "\t", " ", -1)
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return strings.Replace(strings.TrimLeft(name, "./"), "/", " ", -1)
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}
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// WikiCloneLink returns clone URLs of repository wiki.
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func (repo *Repository) WikiCloneLink() *CloneLink {
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return repo.cloneLink(true)
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}
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// WikiPath returns wiki data path by given user and repository name.
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func WikiPath(userName, repoName string) string {
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return filepath.Join(UserPath(userName), strings.ToLower(repoName)+".wiki.git")
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}
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// WikiPath returns wiki data path for given repository.
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func (repo *Repository) WikiPath() string {
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return WikiPath(repo.MustOwner().Name, repo.Name)
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}
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// HasWiki returns true if repository has wiki.
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func (repo *Repository) HasWiki() bool {
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return com.IsDir(repo.WikiPath())
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}
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// InitWiki initializes a wiki for repository,
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// it does nothing when repository already has wiki.
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func (repo *Repository) InitWiki() error {
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if repo.HasWiki() {
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return nil
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}
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if err := git.InitRepository(repo.WikiPath(), true); err != nil {
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return fmt.Errorf("InitRepository: %v", err)
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} else if err = createDelegateHooks(repo.WikiPath()); err != nil {
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return fmt.Errorf("createDelegateHooks: %v", err)
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}
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return nil
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}
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// LocalWikiPath returns the path to the local wiki repository (?).
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func (repo *Repository) LocalWikiPath() string {
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return path.Join(setting.AppDataPath, "tmp/local-wiki", com.ToStr(repo.ID))
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}
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// UpdateLocalWiki makes sure the local copy of repository wiki is up-to-date.
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func (repo *Repository) UpdateLocalWiki() error {
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// Don't pass branch name here because it fails to clone and
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// checkout to a specific branch when wiki is an empty repository.
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var branch = ""
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if com.IsExist(repo.LocalWikiPath()) {
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branch = "master"
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}
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return UpdateLocalCopyBranch(repo.WikiPath(), repo.LocalWikiPath(), branch)
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}
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func discardLocalWikiChanges(localPath string) error {
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return discardLocalRepoBranchChanges(localPath, "master")
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}
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// pathAllowed checks if a wiki path is allowed
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func pathAllowed(path string) error {
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for i := range reservedWikiPaths {
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if path == reservedWikiPaths[i] {
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return ErrWikiAlreadyExist{path}
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}
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}
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return nil
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}
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// updateWikiPage adds new page to repository wiki.
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func (repo *Repository) updateWikiPage(doer *User, oldWikiPath, wikiPath, content, message string, isNew bool) (err error) {
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if err = pathAllowed(wikiPath); err != nil {
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return err
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}
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wikiWorkingPool.CheckIn(com.ToStr(repo.ID))
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defer wikiWorkingPool.CheckOut(com.ToStr(repo.ID))
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if err = repo.InitWiki(); err != nil {
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return fmt.Errorf("InitWiki: %v", err)
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}
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localPath := repo.LocalWikiPath()
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if err = discardLocalWikiChanges(localPath); err != nil {
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return fmt.Errorf("discardLocalWikiChanges: %v", err)
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} else if err = repo.UpdateLocalWiki(); err != nil {
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return fmt.Errorf("UpdateLocalWiki: %v", err)
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}
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title := ToWikiPageName(wikiPath)
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filename := path.Join(localPath, wikiPath+".md")
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// If not a new file, show perform update not create.
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if isNew {
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if com.IsExist(filename) {
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return ErrWikiAlreadyExist{filename}
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}
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} else {
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file := path.Join(localPath, oldWikiPath+".md")
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if err := os.Remove(file); err != nil {
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return fmt.Errorf("Failed to remove %s: %v", file, err)
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}
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}
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// SECURITY: if new file is a symlink to non-exist critical file,
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// attack content can be written to the target file (e.g. authorized_keys2)
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// as a new page operation.
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// So we want to make sure the symlink is removed before write anything.
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// The new file we created will be in normal text format.
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_ = os.Remove(filename)
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if err = ioutil.WriteFile(filename, []byte(content), 0666); err != nil {
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return fmt.Errorf("WriteFile: %v", err)
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}
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if len(message) == 0 {
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message = "Update page '" + title + "'"
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}
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if err = git.AddChanges(localPath, true); err != nil {
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return fmt.Errorf("AddChanges: %v", err)
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} else if err = git.CommitChanges(localPath, git.CommitChangesOptions{
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Committer: doer.NewGitSig(),
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Message: message,
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}); err != nil {
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return fmt.Errorf("CommitChanges: %v", err)
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} else if err = git.Push(localPath, git.PushOptions{
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Remote: "origin",
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Branch: "master",
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}); err != nil {
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return fmt.Errorf("Push: %v", err)
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}
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return nil
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}
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// AddWikiPage adds a new wiki page with a given wikiPath.
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func (repo *Repository) AddWikiPage(doer *User, wikiPath, content, message string) error {
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return repo.updateWikiPage(doer, "", wikiPath, content, message, true)
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}
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// EditWikiPage updates a wiki page identified by its wikiPath,
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// optionally also changing wikiPath.
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func (repo *Repository) EditWikiPage(doer *User, oldWikiPath, wikiPath, content, message string) error {
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return repo.updateWikiPage(doer, oldWikiPath, wikiPath, content, message, false)
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}
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// DeleteWikiPage deletes a wiki page identified by its wikiPath.
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func (repo *Repository) DeleteWikiPage(doer *User, wikiPath string) (err error) {
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wikiWorkingPool.CheckIn(com.ToStr(repo.ID))
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defer wikiWorkingPool.CheckOut(com.ToStr(repo.ID))
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localPath := repo.LocalWikiPath()
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if err = discardLocalWikiChanges(localPath); err != nil {
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return fmt.Errorf("discardLocalWikiChanges: %v", err)
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} else if err = repo.UpdateLocalWiki(); err != nil {
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return fmt.Errorf("UpdateLocalWiki: %v", err)
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}
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filename := path.Join(localPath, wikiPath+".md")
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if err := os.Remove(filename); err != nil {
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return fmt.Errorf("Failed to remove %s: %v", filename, err)
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}
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title := ToWikiPageName(wikiPath)
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message := "Delete page '" + title + "'"
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if err = git.AddChanges(localPath, true); err != nil {
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return fmt.Errorf("AddChanges: %v", err)
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} else if err = git.CommitChanges(localPath, git.CommitChangesOptions{
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Committer: doer.NewGitSig(),
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Message: message,
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}); err != nil {
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return fmt.Errorf("CommitChanges: %v", err)
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} else if err = git.Push(localPath, git.PushOptions{
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Remote: "origin",
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Branch: "master",
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}); err != nil {
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return fmt.Errorf("Push: %v", err)
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}
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return nil
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}
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