509 lines
14 KiB
Go
509 lines
14 KiB
Go
// Copyright 2019 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 repofiles
|
||
|
||
import (
|
||
"bytes"
|
||
"container/list"
|
||
"fmt"
|
||
"path"
|
||
"strings"
|
||
|
||
"code.gitea.io/gitea/models"
|
||
"code.gitea.io/gitea/modules/cache"
|
||
"code.gitea.io/gitea/modules/charset"
|
||
"code.gitea.io/gitea/modules/git"
|
||
"code.gitea.io/gitea/modules/lfs"
|
||
"code.gitea.io/gitea/modules/log"
|
||
"code.gitea.io/gitea/modules/setting"
|
||
"code.gitea.io/gitea/modules/structs"
|
||
pull_service "code.gitea.io/gitea/services/pull"
|
||
|
||
stdcharset "golang.org/x/net/html/charset"
|
||
"golang.org/x/text/transform"
|
||
)
|
||
|
||
// IdentityOptions for a person's identity like an author or committer
|
||
type IdentityOptions struct {
|
||
Name string
|
||
Email string
|
||
}
|
||
|
||
// UpdateRepoFileOptions holds the repository file update options
|
||
type UpdateRepoFileOptions struct {
|
||
LastCommitID string
|
||
OldBranch string
|
||
NewBranch string
|
||
TreePath string
|
||
FromTreePath string
|
||
Message string
|
||
Content string
|
||
SHA string
|
||
IsNewFile bool
|
||
Author *IdentityOptions
|
||
Committer *IdentityOptions
|
||
}
|
||
|
||
func detectEncodingAndBOM(entry *git.TreeEntry, repo *models.Repository) (string, bool) {
|
||
reader, err := entry.Blob().DataAsync()
|
||
if err != nil {
|
||
// return default
|
||
return "UTF-8", false
|
||
}
|
||
defer reader.Close()
|
||
buf := make([]byte, 1024)
|
||
n, err := reader.Read(buf)
|
||
if err != nil {
|
||
// return default
|
||
return "UTF-8", false
|
||
}
|
||
buf = buf[:n]
|
||
|
||
if setting.LFS.StartServer {
|
||
meta := lfs.IsPointerFile(&buf)
|
||
if meta != nil {
|
||
meta, err = repo.GetLFSMetaObjectByOid(meta.Oid)
|
||
if err != nil && err != models.ErrLFSObjectNotExist {
|
||
// return default
|
||
return "UTF-8", false
|
||
}
|
||
}
|
||
if meta != nil {
|
||
dataRc, err := lfs.ReadMetaObject(meta)
|
||
if err != nil {
|
||
// return default
|
||
return "UTF-8", false
|
||
}
|
||
defer dataRc.Close()
|
||
buf = make([]byte, 1024)
|
||
n, err = dataRc.Read(buf)
|
||
if err != nil {
|
||
// return default
|
||
return "UTF-8", false
|
||
}
|
||
buf = buf[:n]
|
||
}
|
||
|
||
}
|
||
|
||
encoding, err := charset.DetectEncoding(buf)
|
||
if err != nil {
|
||
// just default to utf-8 and no bom
|
||
return "UTF-8", false
|
||
}
|
||
if encoding == "UTF-8" {
|
||
return encoding, bytes.Equal(buf[0:3], charset.UTF8BOM)
|
||
}
|
||
charsetEncoding, _ := stdcharset.Lookup(encoding)
|
||
if charsetEncoding == nil {
|
||
return "UTF-8", false
|
||
}
|
||
|
||
result, n, err := transform.String(charsetEncoding.NewDecoder(), string(buf))
|
||
if err != nil {
|
||
// return default
|
||
return "UTF-8", false
|
||
}
|
||
|
||
if n > 2 {
|
||
return encoding, bytes.Equal([]byte(result)[0:3], charset.UTF8BOM)
|
||
}
|
||
|
||
return encoding, false
|
||
}
|
||
|
||
// CreateOrUpdateRepoFile adds or updates a file in the given repository
|
||
func CreateOrUpdateRepoFile(repo *models.Repository, doer *models.User, opts *UpdateRepoFileOptions) (*structs.FileResponse, error) {
|
||
// If no branch name is set, assume master
|
||
if opts.OldBranch == "" {
|
||
opts.OldBranch = repo.DefaultBranch
|
||
}
|
||
if opts.NewBranch == "" {
|
||
opts.NewBranch = opts.OldBranch
|
||
}
|
||
|
||
// oldBranch must exist for this operation
|
||
if _, err := repo.GetBranch(opts.OldBranch); err != nil {
|
||
return nil, err
|
||
}
|
||
|
||
// A NewBranch can be specified for the file to be created/updated in a new branch.
|
||
// Check to make sure the branch does not already exist, otherwise we can't proceed.
|
||
// If we aren't branching to a new branch, make sure user can commit to the given branch
|
||
if opts.NewBranch != opts.OldBranch {
|
||
existingBranch, err := repo.GetBranch(opts.NewBranch)
|
||
if existingBranch != nil {
|
||
return nil, models.ErrBranchAlreadyExists{
|
||
BranchName: opts.NewBranch,
|
||
}
|
||
}
|
||
if err != nil && !git.IsErrBranchNotExist(err) {
|
||
return nil, err
|
||
}
|
||
} else if protected, _ := repo.IsProtectedBranchForPush(opts.OldBranch, doer); protected {
|
||
return nil, models.ErrUserCannotCommit{UserName: doer.LowerName}
|
||
}
|
||
|
||
// If FromTreePath is not set, set it to the opts.TreePath
|
||
if opts.TreePath != "" && opts.FromTreePath == "" {
|
||
opts.FromTreePath = opts.TreePath
|
||
}
|
||
|
||
// Check that the path given in opts.treePath is valid (not a git path)
|
||
treePath := CleanUploadFileName(opts.TreePath)
|
||
if treePath == "" {
|
||
return nil, models.ErrFilenameInvalid{
|
||
Path: opts.TreePath,
|
||
}
|
||
}
|
||
// If there is a fromTreePath (we are copying it), also clean it up
|
||
fromTreePath := CleanUploadFileName(opts.FromTreePath)
|
||
if fromTreePath == "" && opts.FromTreePath != "" {
|
||
return nil, models.ErrFilenameInvalid{
|
||
Path: opts.FromTreePath,
|
||
}
|
||
}
|
||
|
||
message := strings.TrimSpace(opts.Message)
|
||
|
||
author, committer := GetAuthorAndCommitterUsers(opts.Committer, opts.Author, doer)
|
||
|
||
t, err := NewTemporaryUploadRepository(repo)
|
||
if err != nil {
|
||
log.Error("%v", err)
|
||
}
|
||
defer t.Close()
|
||
if err := t.Clone(opts.OldBranch); err != nil {
|
||
return nil, err
|
||
}
|
||
if err := t.SetDefaultIndex(); err != nil {
|
||
return nil, err
|
||
}
|
||
|
||
// Get the commit of the original branch
|
||
commit, err := t.GetBranchCommit(opts.OldBranch)
|
||
if err != nil {
|
||
return nil, err // Couldn't get a commit for the branch
|
||
}
|
||
|
||
// Assigned LastCommitID in opts if it hasn't been set
|
||
if opts.LastCommitID == "" {
|
||
opts.LastCommitID = commit.ID.String()
|
||
} else {
|
||
lastCommitID, err := t.gitRepo.ConvertToSHA1(opts.LastCommitID)
|
||
if err != nil {
|
||
return nil, fmt.Errorf("DeleteRepoFile: Invalid last commit ID: %v", err)
|
||
}
|
||
opts.LastCommitID = lastCommitID.String()
|
||
|
||
}
|
||
|
||
encoding := "UTF-8"
|
||
bom := false
|
||
|
||
if !opts.IsNewFile {
|
||
fromEntry, err := commit.GetTreeEntryByPath(fromTreePath)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
if opts.SHA != "" {
|
||
// If a SHA was given and the SHA given doesn't match the SHA of the fromTreePath, throw error
|
||
if opts.SHA != fromEntry.ID.String() {
|
||
return nil, models.ErrSHADoesNotMatch{
|
||
Path: treePath,
|
||
GivenSHA: opts.SHA,
|
||
CurrentSHA: fromEntry.ID.String(),
|
||
}
|
||
}
|
||
} else if opts.LastCommitID != "" {
|
||
// If a lastCommitID was given and it doesn't match the commitID of the head of the branch throw
|
||
// an error, but only if we aren't creating a new branch.
|
||
if commit.ID.String() != opts.LastCommitID && opts.OldBranch == opts.NewBranch {
|
||
if changed, err := commit.FileChangedSinceCommit(treePath, opts.LastCommitID); err != nil {
|
||
return nil, err
|
||
} else if changed {
|
||
return nil, models.ErrCommitIDDoesNotMatch{
|
||
GivenCommitID: opts.LastCommitID,
|
||
CurrentCommitID: opts.LastCommitID,
|
||
}
|
||
}
|
||
// The file wasn't modified, so we are good to delete it
|
||
}
|
||
} else {
|
||
// When updating a file, a lastCommitID or SHA needs to be given to make sure other commits
|
||
// haven't been made. We throw an error if one wasn't provided.
|
||
return nil, models.ErrSHAOrCommitIDNotProvided{}
|
||
}
|
||
encoding, bom = detectEncodingAndBOM(fromEntry, repo)
|
||
}
|
||
|
||
// For the path where this file will be created/updated, we need to make
|
||
// sure no parts of the path are existing files or links except for the last
|
||
// item in the path which is the file name, and that shouldn't exist IF it is
|
||
// a new file OR is being moved to a new path.
|
||
treePathParts := strings.Split(treePath, "/")
|
||
subTreePath := ""
|
||
for index, part := range treePathParts {
|
||
subTreePath = path.Join(subTreePath, part)
|
||
entry, err := commit.GetTreeEntryByPath(subTreePath)
|
||
if err != nil {
|
||
if git.IsErrNotExist(err) {
|
||
// Means there is no item with that name, so we're good
|
||
break
|
||
}
|
||
return nil, err
|
||
}
|
||
if index < len(treePathParts)-1 {
|
||
if !entry.IsDir() {
|
||
return nil, models.ErrFilePathInvalid{
|
||
Message: fmt.Sprintf("a file exists where you’re trying to create a subdirectory [path: %s]", subTreePath),
|
||
Path: subTreePath,
|
||
Name: part,
|
||
Type: git.EntryModeBlob,
|
||
}
|
||
}
|
||
} else if entry.IsLink() {
|
||
return nil, models.ErrFilePathInvalid{
|
||
Message: fmt.Sprintf("a symbolic link exists where you’re trying to create a subdirectory [path: %s]", subTreePath),
|
||
Path: subTreePath,
|
||
Name: part,
|
||
Type: git.EntryModeSymlink,
|
||
}
|
||
} else if entry.IsDir() {
|
||
return nil, models.ErrFilePathInvalid{
|
||
Message: fmt.Sprintf("a directory exists where you’re trying to create a file [path: %s]", subTreePath),
|
||
Path: subTreePath,
|
||
Name: part,
|
||
Type: git.EntryModeTree,
|
||
}
|
||
} else if fromTreePath != treePath || opts.IsNewFile {
|
||
// The entry shouldn't exist if we are creating new file or moving to a new path
|
||
return nil, models.ErrRepoFileAlreadyExists{
|
||
Path: treePath,
|
||
}
|
||
}
|
||
|
||
}
|
||
|
||
// Get the two paths (might be the same if not moving) from the index if they exist
|
||
filesInIndex, err := t.LsFiles(opts.TreePath, opts.FromTreePath)
|
||
if err != nil {
|
||
return nil, fmt.Errorf("UpdateRepoFile: %v", err)
|
||
}
|
||
// If is a new file (not updating) then the given path shouldn't exist
|
||
if opts.IsNewFile {
|
||
for _, file := range filesInIndex {
|
||
if file == opts.TreePath {
|
||
return nil, models.ErrRepoFileAlreadyExists{
|
||
Path: opts.TreePath,
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
// Remove the old path from the tree
|
||
if fromTreePath != treePath && len(filesInIndex) > 0 {
|
||
for _, file := range filesInIndex {
|
||
if file == fromTreePath {
|
||
if err := t.RemoveFilesFromIndex(opts.FromTreePath); err != nil {
|
||
return nil, err
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
content := opts.Content
|
||
if bom {
|
||
content = string(charset.UTF8BOM) + content
|
||
}
|
||
if encoding != "UTF-8" {
|
||
charsetEncoding, _ := stdcharset.Lookup(encoding)
|
||
if charsetEncoding != nil {
|
||
result, _, err := transform.String(charsetEncoding.NewEncoder(), content)
|
||
if err != nil {
|
||
// Look if we can't encode back in to the original we should just stick with utf-8
|
||
log.Error("Error re-encoding %s (%s) as %s - will stay as UTF-8: %v", opts.TreePath, opts.FromTreePath, encoding, err)
|
||
result = content
|
||
}
|
||
content = result
|
||
} else {
|
||
log.Error("Unknown encoding: %s", encoding)
|
||
}
|
||
}
|
||
// Reset the opts.Content to our adjusted content to ensure that LFS gets the correct content
|
||
opts.Content = content
|
||
var lfsMetaObject *models.LFSMetaObject
|
||
|
||
if setting.LFS.StartServer {
|
||
// Check there is no way this can return multiple infos
|
||
filename2attribute2info, err := t.CheckAttribute("filter", treePath)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
|
||
if filename2attribute2info[treePath] != nil && filename2attribute2info[treePath]["filter"] == "lfs" {
|
||
// OK so we are supposed to LFS this data!
|
||
oid, err := models.GenerateLFSOid(strings.NewReader(opts.Content))
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
lfsMetaObject = &models.LFSMetaObject{Oid: oid, Size: int64(len(opts.Content)), RepositoryID: repo.ID}
|
||
content = lfsMetaObject.Pointer()
|
||
}
|
||
}
|
||
// Add the object to the database
|
||
objectHash, err := t.HashObject(strings.NewReader(content))
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
|
||
// Add the object to the index
|
||
if err := t.AddObjectToIndex("100644", objectHash, treePath); err != nil {
|
||
return nil, err
|
||
}
|
||
|
||
// Now write the tree
|
||
treeHash, err := t.WriteTree()
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
|
||
// Now commit the tree
|
||
commitHash, err := t.CommitTree(author, committer, treeHash, message)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
|
||
if lfsMetaObject != nil {
|
||
// We have an LFS object - create it
|
||
lfsMetaObject, err = models.NewLFSMetaObject(lfsMetaObject)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
contentStore := &lfs.ContentStore{BasePath: setting.LFS.ContentPath}
|
||
if !contentStore.Exists(lfsMetaObject) {
|
||
if err := contentStore.Put(lfsMetaObject, strings.NewReader(opts.Content)); err != nil {
|
||
if err2 := repo.RemoveLFSMetaObjectByOid(lfsMetaObject.Oid); err2 != nil {
|
||
return nil, fmt.Errorf("Error whilst removing failed inserted LFS object %s: %v (Prev Error: %v)", lfsMetaObject.Oid, err2, err)
|
||
}
|
||
return nil, err
|
||
}
|
||
}
|
||
}
|
||
|
||
// Then push this tree to NewBranch
|
||
if err := t.Push(doer, commitHash, opts.NewBranch); err != nil {
|
||
return nil, err
|
||
}
|
||
|
||
commit, err = t.GetCommit(commitHash)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
|
||
file, err := GetFileResponseFromCommit(repo, commit, opts.NewBranch, treePath)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
return file, nil
|
||
}
|
||
|
||
// PushUpdate must be called for any push actions in order to
|
||
// generates necessary push action history feeds and other operations
|
||
func PushUpdate(repo *models.Repository, branch string, opts models.PushUpdateOptions) error {
|
||
isNewRef := opts.OldCommitID == git.EmptySHA
|
||
isDelRef := opts.NewCommitID == git.EmptySHA
|
||
if isNewRef && isDelRef {
|
||
return fmt.Errorf("Old and new revisions are both %s", git.EmptySHA)
|
||
}
|
||
|
||
repoPath := models.RepoPath(opts.RepoUserName, opts.RepoName)
|
||
|
||
_, err := git.NewCommand("update-server-info").RunInDir(repoPath)
|
||
if err != nil {
|
||
return fmt.Errorf("Failed to call 'git update-server-info': %v", err)
|
||
}
|
||
|
||
gitRepo, err := git.OpenRepository(repoPath)
|
||
if err != nil {
|
||
return fmt.Errorf("OpenRepository: %v", err)
|
||
}
|
||
|
||
if err = repo.UpdateSize(); err != nil {
|
||
log.Error("Failed to update size for repository: %v", err)
|
||
}
|
||
|
||
var commits = &models.PushCommits{}
|
||
if strings.HasPrefix(opts.RefFullName, git.TagPrefix) {
|
||
// If is tag reference
|
||
tagName := opts.RefFullName[len(git.TagPrefix):]
|
||
if isDelRef {
|
||
err = models.PushUpdateDeleteTag(repo, tagName)
|
||
if err != nil {
|
||
return fmt.Errorf("PushUpdateDeleteTag: %v", err)
|
||
}
|
||
} else {
|
||
// Clear cache for tag commit count
|
||
cache.Remove(repo.GetCommitsCountCacheKey(tagName, true))
|
||
err = models.PushUpdateAddTag(repo, gitRepo, tagName)
|
||
if err != nil {
|
||
return fmt.Errorf("PushUpdateAddTag: %v", err)
|
||
}
|
||
}
|
||
} else if !isDelRef {
|
||
// If is branch reference
|
||
|
||
// Clear cache for branch commit count
|
||
cache.Remove(repo.GetCommitsCountCacheKey(opts.RefFullName[len(git.BranchPrefix):], true))
|
||
|
||
newCommit, err := gitRepo.GetCommit(opts.NewCommitID)
|
||
if err != nil {
|
||
return fmt.Errorf("gitRepo.GetCommit: %v", err)
|
||
}
|
||
|
||
// Push new branch.
|
||
var l *list.List
|
||
if isNewRef {
|
||
l, err = newCommit.CommitsBeforeLimit(10)
|
||
if err != nil {
|
||
return fmt.Errorf("newCommit.CommitsBeforeLimit: %v", err)
|
||
}
|
||
} else {
|
||
l, err = newCommit.CommitsBeforeUntil(opts.OldCommitID)
|
||
if err != nil {
|
||
return fmt.Errorf("newCommit.CommitsBeforeUntil: %v", err)
|
||
}
|
||
}
|
||
|
||
commits = models.ListToPushCommits(l)
|
||
}
|
||
|
||
if err := CommitRepoAction(CommitRepoActionOptions{
|
||
PusherName: opts.PusherName,
|
||
RepoOwnerID: repo.OwnerID,
|
||
RepoName: repo.Name,
|
||
RefFullName: opts.RefFullName,
|
||
OldCommitID: opts.OldCommitID,
|
||
NewCommitID: opts.NewCommitID,
|
||
Commits: commits,
|
||
}); err != nil {
|
||
return fmt.Errorf("CommitRepoAction: %v", err)
|
||
}
|
||
|
||
pusher, err := models.GetUserByID(opts.PusherID)
|
||
if err != nil {
|
||
return err
|
||
}
|
||
|
||
log.Trace("TriggerTask '%s/%s' by %s", repo.Name, branch, pusher.Name)
|
||
|
||
go pull_service.AddTestPullRequestTask(pusher, repo.ID, branch, true)
|
||
|
||
if opts.RefFullName == git.BranchPrefix+repo.DefaultBranch {
|
||
models.UpdateRepoIndexer(repo)
|
||
}
|
||
return nil
|
||
}
|