forgejo/models/repo_editor.go
2016-11-28 17:58:59 +01:00

534 lines
16 KiB
Go

// Copyright 2016 The Gogs 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 models
import (
"fmt"
"io"
"io/ioutil"
"mime/multipart"
"os"
"os/exec"
"path"
"path/filepath"
"time"
"github.com/Unknwon/com"
gouuid "github.com/satori/go.uuid"
"code.gitea.io/git"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/process"
"code.gitea.io/gitea/modules/setting"
)
// ___________ .___.__ __ ___________.__.__
// \_ _____/ __| _/|__|/ |_ \_ _____/|__| | ____
// | __)_ / __ | | \ __\ | __) | | | _/ __ \
// | \/ /_/ | | || | | \ | | |_\ ___/
// /_______ /\____ | |__||__| \___ / |__|____/\___ >
// \/ \/ \/ \/
// discardLocalRepoBranchChanges discards local commits/changes of
// given branch to make sure it is even to remote branch.
func discardLocalRepoBranchChanges(localPath, branch string) error {
if !com.IsExist(localPath) {
return nil
}
// No need to check if nothing in the repository.
if !git.IsBranchExist(localPath, branch) {
return nil
}
refName := "origin/" + branch
if err := git.ResetHEAD(localPath, true, refName); err != nil {
return fmt.Errorf("git reset --hard %s: %v", refName, err)
}
return nil
}
// DiscardLocalRepoBranchChanges discards the local repository branch changes
func (repo *Repository) DiscardLocalRepoBranchChanges(branch string) error {
return discardLocalRepoBranchChanges(repo.LocalCopyPath(), branch)
}
// checkoutNewBranch checks out to a new branch from the a branch name.
func checkoutNewBranch(repoPath, localPath, oldBranch, newBranch string) error {
if err := git.Checkout(localPath, git.CheckoutOptions{
Timeout: time.Duration(setting.Git.Timeout.Pull) * time.Second,
Branch: newBranch,
OldBranch: oldBranch,
}); err != nil {
return fmt.Errorf("git checkout -b %s %s: %v", newBranch, oldBranch, err)
}
return nil
}
// CheckoutNewBranch checks out a new branch
func (repo *Repository) CheckoutNewBranch(oldBranch, newBranch string) error {
return checkoutNewBranch(repo.RepoPath(), repo.LocalCopyPath(), oldBranch, newBranch)
}
// UpdateRepoFileOptions holds the repository file update options
type UpdateRepoFileOptions struct {
LastCommitID string
OldBranch string
NewBranch string
OldTreeName string
NewTreeName string
Message string
Content string
IsNewFile bool
}
// UpdateRepoFile adds or updates a file in repository.
func (repo *Repository) UpdateRepoFile(doer *User, opts UpdateRepoFileOptions) (err error) {
repoWorkingPool.CheckIn(com.ToStr(repo.ID))
defer repoWorkingPool.CheckOut(com.ToStr(repo.ID))
if err = repo.DiscardLocalRepoBranchChanges(opts.OldBranch); err != nil {
return fmt.Errorf("DiscardLocalRepoBranchChanges [branch: %s]: %v", opts.OldBranch, err)
} else if err = repo.UpdateLocalCopyBranch(opts.OldBranch); err != nil {
return fmt.Errorf("UpdateLocalCopyBranch [branch: %s]: %v", opts.OldBranch, err)
}
if opts.OldBranch != opts.NewBranch {
if err := repo.CheckoutNewBranch(opts.OldBranch, opts.NewBranch); err != nil {
return fmt.Errorf("CheckoutNewBranch [old_branch: %s, new_branch: %s]: %v", opts.OldBranch, opts.NewBranch, err)
}
}
localPath := repo.LocalCopyPath()
oldFilePath := path.Join(localPath, opts.OldTreeName)
filePath := path.Join(localPath, opts.NewTreeName)
os.MkdirAll(path.Dir(filePath), os.ModePerm)
// If it's meant to be a new file, make sure it doesn't exist.
if opts.IsNewFile {
if com.IsExist(filePath) {
return ErrRepoFileAlreadyExist{filePath}
}
}
// Ignore move step if it's a new file under a directory.
// Otherwise, move the file when name changed.
if com.IsFile(oldFilePath) && opts.OldTreeName != opts.NewTreeName {
if err = git.MoveFile(localPath, opts.OldTreeName, opts.NewTreeName); err != nil {
return fmt.Errorf("git mv %s %s: %v", opts.OldTreeName, opts.NewTreeName, err)
}
}
if err = ioutil.WriteFile(filePath, []byte(opts.Content), 0666); err != nil {
return fmt.Errorf("WriteFile: %v", err)
}
if err = git.AddChanges(localPath, true); err != nil {
return fmt.Errorf("git add --all: %v", err)
} else if err = git.CommitChanges(localPath, git.CommitChangesOptions{
Committer: doer.NewGitSig(),
Message: opts.Message,
}); err != nil {
return fmt.Errorf("CommitChanges: %v", err)
} else if err = git.Push(localPath, "origin", opts.NewBranch); err != nil {
return fmt.Errorf("git push origin %s: %v", opts.NewBranch, err)
}
gitRepo, err := git.OpenRepository(repo.RepoPath())
if err != nil {
log.Error(4, "OpenRepository: %v", err)
return nil
}
commit, err := gitRepo.GetBranchCommit(opts.NewBranch)
if err != nil {
log.Error(4, "GetBranchCommit [branch: %s]: %v", opts.NewBranch, err)
return nil
}
// Simulate push event.
pushCommits := &PushCommits{
Len: 1,
Commits: []*PushCommit{CommitToPushCommit(commit)},
}
oldCommitID := opts.LastCommitID
if opts.NewBranch != opts.OldBranch {
oldCommitID = git.EMPTY_SHA
}
if err := CommitRepoAction(CommitRepoActionOptions{
PusherName: doer.Name,
RepoOwnerID: repo.MustOwner().ID,
RepoName: repo.Name,
RefFullName: git.BRANCH_PREFIX + opts.NewBranch,
OldCommitID: oldCommitID,
NewCommitID: commit.ID.String(),
Commits: pushCommits,
}); err != nil {
log.Error(4, "CommitRepoAction: %v", err)
return nil
}
return nil
}
// GetDiffPreview produces and returns diff result of a file which is not yet committed.
func (repo *Repository) GetDiffPreview(branch, treePath, content string) (diff *Diff, err error) {
repoWorkingPool.CheckIn(com.ToStr(repo.ID))
defer repoWorkingPool.CheckOut(com.ToStr(repo.ID))
if err = repo.DiscardLocalRepoBranchChanges(branch); err != nil {
return nil, fmt.Errorf("DiscardLocalRepoBranchChanges [branch: %s]: %v", branch, err)
} else if err = repo.UpdateLocalCopyBranch(branch); err != nil {
return nil, fmt.Errorf("UpdateLocalCopyBranch [branch: %s]: %v", branch, err)
}
localPath := repo.LocalCopyPath()
filePath := path.Join(localPath, treePath)
os.MkdirAll(filepath.Dir(filePath), os.ModePerm)
if err = ioutil.WriteFile(filePath, []byte(content), 0666); err != nil {
return nil, fmt.Errorf("WriteFile: %v", err)
}
cmd := exec.Command("git", "diff", treePath)
cmd.Dir = localPath
cmd.Stderr = os.Stderr
stdout, err := cmd.StdoutPipe()
if err != nil {
return nil, fmt.Errorf("StdoutPipe: %v", err)
}
if err = cmd.Start(); err != nil {
return nil, fmt.Errorf("Start: %v", err)
}
pid := process.Add(fmt.Sprintf("GetDiffPreview [repo_path: %s]", repo.RepoPath()), cmd)
defer process.Remove(pid)
diff, err = ParsePatch(setting.Git.MaxGitDiffLines, setting.Git.MaxGitDiffLineCharacters, setting.Git.MaxGitDiffFiles, stdout)
if err != nil {
return nil, fmt.Errorf("ParsePatch: %v", err)
}
if err = cmd.Wait(); err != nil {
return nil, fmt.Errorf("Wait: %v", err)
}
return diff, nil
}
// ________ .__ __ ___________.__.__
// \______ \ ____ | | _____/ |_ ____ \_ _____/|__| | ____
// | | \_/ __ \| | _/ __ \ __\/ __ \ | __) | | | _/ __ \
// | ` \ ___/| |_\ ___/| | \ ___/ | \ | | |_\ ___/
// /_______ /\___ >____/\___ >__| \___ > \___ / |__|____/\___ >
// \/ \/ \/ \/ \/ \/
//
// DeleteRepoFileOptions holds the repository delete file options
type DeleteRepoFileOptions struct {
LastCommitID string
OldBranch string
NewBranch string
TreePath string
Message string
}
// DeleteRepoFile deletes a repository file
func (repo *Repository) DeleteRepoFile(doer *User, opts DeleteRepoFileOptions) (err error) {
repoWorkingPool.CheckIn(com.ToStr(repo.ID))
defer repoWorkingPool.CheckOut(com.ToStr(repo.ID))
if err = repo.DiscardLocalRepoBranchChanges(opts.OldBranch); err != nil {
return fmt.Errorf("DiscardLocalRepoBranchChanges [branch: %s]: %v", opts.OldBranch, err)
} else if err = repo.UpdateLocalCopyBranch(opts.OldBranch); err != nil {
return fmt.Errorf("UpdateLocalCopyBranch [branch: %s]: %v", opts.OldBranch, err)
}
if opts.OldBranch != opts.NewBranch {
if err := repo.CheckoutNewBranch(opts.OldBranch, opts.NewBranch); err != nil {
return fmt.Errorf("CheckoutNewBranch [old_branch: %s, new_branch: %s]: %v", opts.OldBranch, opts.NewBranch, err)
}
}
localPath := repo.LocalCopyPath()
if err = os.Remove(path.Join(localPath, opts.TreePath)); err != nil {
return fmt.Errorf("Remove: %v", err)
}
if err = git.AddChanges(localPath, true); err != nil {
return fmt.Errorf("git add --all: %v", err)
} else if err = git.CommitChanges(localPath, git.CommitChangesOptions{
Committer: doer.NewGitSig(),
Message: opts.Message,
}); err != nil {
return fmt.Errorf("CommitChanges: %v", err)
} else if err = git.Push(localPath, "origin", opts.NewBranch); err != nil {
return fmt.Errorf("git push origin %s: %v", opts.NewBranch, err)
}
gitRepo, err := git.OpenRepository(repo.RepoPath())
if err != nil {
log.Error(4, "OpenRepository: %v", err)
return nil
}
commit, err := gitRepo.GetBranchCommit(opts.NewBranch)
if err != nil {
log.Error(4, "GetBranchCommit [branch: %s]: %v", opts.NewBranch, err)
return nil
}
// Simulate push event.
pushCommits := &PushCommits{
Len: 1,
Commits: []*PushCommit{CommitToPushCommit(commit)},
}
if err := CommitRepoAction(CommitRepoActionOptions{
PusherName: doer.Name,
RepoOwnerID: repo.MustOwner().ID,
RepoName: repo.Name,
RefFullName: git.BRANCH_PREFIX + opts.NewBranch,
OldCommitID: opts.LastCommitID,
NewCommitID: commit.ID.String(),
Commits: pushCommits,
}); err != nil {
log.Error(4, "CommitRepoAction: %v", err)
return nil
}
return nil
}
// ____ ___ .__ .___ ___________.___.__
// | | \______ | | _________ __| _/ \_ _____/| | | ____ ______
// | | /\____ \| | / _ \__ \ / __ | | __) | | | _/ __ \ / ___/
// | | / | |_> > |_( <_> ) __ \_/ /_/ | | \ | | |_\ ___/ \___ \
// |______/ | __/|____/\____(____ /\____ | \___ / |___|____/\___ >____ >
// |__| \/ \/ \/ \/ \/
//
// Upload represent a uploaded file to a repo to be deleted when moved
type Upload struct {
ID int64 `xorm:"pk autoincr"`
UUID string `xorm:"uuid UNIQUE"`
Name string
}
// UploadLocalPath returns where uploads is stored in local file system based on given UUID.
func UploadLocalPath(uuid string) string {
return path.Join(setting.Repository.Upload.TempPath, uuid[0:1], uuid[1:2], uuid)
}
// LocalPath returns where uploads are temporarily stored in local file system.
func (upload *Upload) LocalPath() string {
return UploadLocalPath(upload.UUID)
}
// NewUpload creates a new upload object.
func NewUpload(name string, buf []byte, file multipart.File) (_ *Upload, err error) {
upload := &Upload{
UUID: gouuid.NewV4().String(),
Name: name,
}
localPath := upload.LocalPath()
if err = os.MkdirAll(path.Dir(localPath), os.ModePerm); err != nil {
return nil, fmt.Errorf("MkdirAll: %v", err)
}
fw, err := os.Create(localPath)
if err != nil {
return nil, fmt.Errorf("Create: %v", err)
}
defer fw.Close()
if _, err = fw.Write(buf); err != nil {
return nil, fmt.Errorf("Write: %v", err)
} else if _, err = io.Copy(fw, file); err != nil {
return nil, fmt.Errorf("Copy: %v", err)
}
if _, err := x.Insert(upload); err != nil {
return nil, err
}
return upload, nil
}
// GetUploadByUUID returns the Upload by UUID
func GetUploadByUUID(uuid string) (*Upload, error) {
upload := &Upload{UUID: uuid}
has, err := x.Get(upload)
if err != nil {
return nil, err
} else if !has {
return nil, ErrUploadNotExist{0, uuid}
}
return upload, nil
}
// GetUploadsByUUIDs returns multiple uploads by UUIDS
func GetUploadsByUUIDs(uuids []string) ([]*Upload, error) {
if len(uuids) == 0 {
return []*Upload{}, nil
}
// Silently drop invalid uuids.
uploads := make([]*Upload, 0, len(uuids))
return uploads, x.In("uuid", uuids).Find(&uploads)
}
// DeleteUploads deletes multiple uploads
func DeleteUploads(uploads ...*Upload) (err error) {
if len(uploads) == 0 {
return nil
}
sess := x.NewSession()
defer sessionRelease(sess)
if err = sess.Begin(); err != nil {
return err
}
ids := make([]int64, len(uploads))
for i := 0; i < len(uploads); i++ {
ids[i] = uploads[i].ID
}
if _, err = sess.
In("id", ids).
Delete(new(Upload)); err != nil {
return fmt.Errorf("delete uploads: %v", err)
}
for _, upload := range uploads {
localPath := upload.LocalPath()
if !com.IsFile(localPath) {
continue
}
if err := os.Remove(localPath); err != nil {
return fmt.Errorf("remove upload: %v", err)
}
}
return sess.Commit()
}
// DeleteUpload delete a upload
func DeleteUpload(u *Upload) error {
return DeleteUploads(u)
}
// DeleteUploadByUUID deletes a upload by UUID
func DeleteUploadByUUID(uuid string) error {
upload, err := GetUploadByUUID(uuid)
if err != nil {
if IsErrUploadNotExist(err) {
return nil
}
return fmt.Errorf("GetUploadByUUID: %v", err)
}
if err := DeleteUpload(upload); err != nil {
return fmt.Errorf("DeleteUpload: %v", err)
}
return nil
}
// UploadRepoFileOptions contains the uploaded repository file options
type UploadRepoFileOptions struct {
LastCommitID string
OldBranch string
NewBranch string
TreePath string
Message string
Files []string // In UUID format.
}
// UploadRepoFiles uploads files to a repository
func (repo *Repository) UploadRepoFiles(doer *User, opts UploadRepoFileOptions) (err error) {
if len(opts.Files) == 0 {
return nil
}
uploads, err := GetUploadsByUUIDs(opts.Files)
if err != nil {
return fmt.Errorf("GetUploadsByUUIDs [uuids: %v]: %v", opts.Files, err)
}
repoWorkingPool.CheckIn(com.ToStr(repo.ID))
defer repoWorkingPool.CheckOut(com.ToStr(repo.ID))
if err = repo.DiscardLocalRepoBranchChanges(opts.OldBranch); err != nil {
return fmt.Errorf("DiscardLocalRepoBranchChanges [branch: %s]: %v", opts.OldBranch, err)
} else if err = repo.UpdateLocalCopyBranch(opts.OldBranch); err != nil {
return fmt.Errorf("UpdateLocalCopyBranch [branch: %s]: %v", opts.OldBranch, err)
}
if opts.OldBranch != opts.NewBranch {
if err = repo.CheckoutNewBranch(opts.OldBranch, opts.NewBranch); err != nil {
return fmt.Errorf("CheckoutNewBranch [old_branch: %s, new_branch: %s]: %v", opts.OldBranch, opts.NewBranch, err)
}
}
localPath := repo.LocalCopyPath()
dirPath := path.Join(localPath, opts.TreePath)
os.MkdirAll(dirPath, os.ModePerm)
// Copy uploaded files into repository.
for _, upload := range uploads {
tmpPath := upload.LocalPath()
targetPath := path.Join(dirPath, upload.Name)
if !com.IsFile(tmpPath) {
continue
}
if err = com.Copy(tmpPath, targetPath); err != nil {
return fmt.Errorf("Copy: %v", err)
}
}
if err = git.AddChanges(localPath, true); err != nil {
return fmt.Errorf("git add --all: %v", err)
} else if err = git.CommitChanges(localPath, git.CommitChangesOptions{
Committer: doer.NewGitSig(),
Message: opts.Message,
}); err != nil {
return fmt.Errorf("CommitChanges: %v", err)
} else if err = git.Push(localPath, "origin", opts.NewBranch); err != nil {
return fmt.Errorf("git push origin %s: %v", opts.NewBranch, err)
}
gitRepo, err := git.OpenRepository(repo.RepoPath())
if err != nil {
log.Error(4, "OpenRepository: %v", err)
return nil
}
commit, err := gitRepo.GetBranchCommit(opts.NewBranch)
if err != nil {
log.Error(4, "GetBranchCommit [branch: %s]: %v", opts.NewBranch, err)
return nil
}
// Simulate push event.
pushCommits := &PushCommits{
Len: 1,
Commits: []*PushCommit{CommitToPushCommit(commit)},
}
if err := CommitRepoAction(CommitRepoActionOptions{
PusherName: doer.Name,
RepoOwnerID: repo.MustOwner().ID,
RepoName: repo.Name,
RefFullName: git.BRANCH_PREFIX + opts.NewBranch,
OldCommitID: opts.LastCommitID,
NewCommitID: commit.ID.String(),
Commits: pushCommits,
}); err != nil {
log.Error(4, "CommitRepoAction: %v", err)
return nil
}
return DeleteUploads(uploads...)
}