mirror of https://github.com/go-gitea/gitea.git
403 lines
15 KiB
Go
403 lines
15 KiB
Go
// Copyright 2019 The Gitea Authors. All rights reserved.
|
|
// SPDX-License-Identifier: MIT
|
|
|
|
package files
|
|
|
|
import (
|
|
"bytes"
|
|
"context"
|
|
"fmt"
|
|
"io"
|
|
"os"
|
|
"regexp"
|
|
"strings"
|
|
"time"
|
|
|
|
"code.gitea.io/gitea/models"
|
|
repo_model "code.gitea.io/gitea/models/repo"
|
|
user_model "code.gitea.io/gitea/models/user"
|
|
"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"
|
|
asymkey_service "code.gitea.io/gitea/services/asymkey"
|
|
"code.gitea.io/gitea/services/gitdiff"
|
|
)
|
|
|
|
// TemporaryUploadRepository is a type to wrap our upload repositories as a shallow clone
|
|
type TemporaryUploadRepository struct {
|
|
ctx context.Context
|
|
repo *repo_model.Repository
|
|
gitRepo *git.Repository
|
|
basePath string
|
|
}
|
|
|
|
// NewTemporaryUploadRepository creates a new temporary upload repository
|
|
func NewTemporaryUploadRepository(ctx context.Context, repo *repo_model.Repository) (*TemporaryUploadRepository, error) {
|
|
basePath, err := repo_module.CreateTemporaryPath("upload")
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
t := &TemporaryUploadRepository{ctx: ctx, repo: repo, basePath: basePath}
|
|
return t, nil
|
|
}
|
|
|
|
// Close the repository cleaning up all files
|
|
func (t *TemporaryUploadRepository) Close() {
|
|
defer t.gitRepo.Close()
|
|
if err := repo_module.RemoveTemporaryPath(t.basePath); err != nil {
|
|
log.Error("Failed to remove temporary path %s: %v", t.basePath, err)
|
|
}
|
|
}
|
|
|
|
// Clone the base repository to our path and set branch as the HEAD
|
|
func (t *TemporaryUploadRepository) Clone(branch string, bare bool) error {
|
|
cmd := git.NewCommand(t.ctx, "clone", "-s", "-b").AddDynamicArguments(branch, t.repo.RepoPath(), t.basePath)
|
|
if bare {
|
|
cmd.AddArguments("--bare")
|
|
}
|
|
|
|
if _, _, err := cmd.RunStdString(nil); err != nil {
|
|
stderr := err.Error()
|
|
if matched, _ := regexp.MatchString(".*Remote branch .* not found in upstream origin.*", stderr); matched {
|
|
return git.ErrBranchNotExist{
|
|
Name: branch,
|
|
}
|
|
} else if matched, _ := regexp.MatchString(".* repository .* does not exist.*", stderr); matched {
|
|
return repo_model.ErrRepoNotExist{
|
|
ID: t.repo.ID,
|
|
UID: t.repo.OwnerID,
|
|
OwnerName: t.repo.OwnerName,
|
|
Name: t.repo.Name,
|
|
}
|
|
}
|
|
return fmt.Errorf("Clone: %w %s", err, stderr)
|
|
}
|
|
gitRepo, err := git.OpenRepository(t.ctx, t.basePath)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
t.gitRepo = gitRepo
|
|
return nil
|
|
}
|
|
|
|
// Init the repository
|
|
func (t *TemporaryUploadRepository) Init(objectFormatName string) error {
|
|
if err := git.InitRepository(t.ctx, t.basePath, false, objectFormatName); err != nil {
|
|
return err
|
|
}
|
|
gitRepo, err := git.OpenRepository(t.ctx, t.basePath)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
t.gitRepo = gitRepo
|
|
return nil
|
|
}
|
|
|
|
// SetDefaultIndex sets the git index to our HEAD
|
|
func (t *TemporaryUploadRepository) SetDefaultIndex() error {
|
|
if _, _, err := git.NewCommand(t.ctx, "read-tree", "HEAD").RunStdString(&git.RunOpts{Dir: t.basePath}); err != nil {
|
|
return fmt.Errorf("SetDefaultIndex: %w", err)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// RefreshIndex looks at the current index and checks to see if merges or updates are needed by checking stat() information.
|
|
func (t *TemporaryUploadRepository) RefreshIndex() error {
|
|
if _, _, err := git.NewCommand(t.ctx, "update-index", "--refresh").RunStdString(&git.RunOpts{Dir: t.basePath}); err != nil {
|
|
return fmt.Errorf("RefreshIndex: %w", err)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// LsFiles checks if the given filename arguments are in the index
|
|
func (t *TemporaryUploadRepository) LsFiles(filenames ...string) ([]string, error) {
|
|
stdOut := new(bytes.Buffer)
|
|
stdErr := new(bytes.Buffer)
|
|
|
|
if err := git.NewCommand(t.ctx, "ls-files", "-z").AddDashesAndList(filenames...).
|
|
Run(&git.RunOpts{
|
|
Dir: t.basePath,
|
|
Stdout: stdOut,
|
|
Stderr: stdErr,
|
|
}); err != nil {
|
|
log.Error("Unable to run git ls-files for temporary repo: %s (%s) Error: %v\nstdout: %s\nstderr: %s", t.repo.FullName(), t.basePath, err, stdOut.String(), stdErr.String())
|
|
err = fmt.Errorf("Unable to run git ls-files for temporary repo of: %s Error: %w\nstdout: %s\nstderr: %s", t.repo.FullName(), err, stdOut.String(), stdErr.String())
|
|
return nil, err
|
|
}
|
|
|
|
fileList := make([]string, 0, len(filenames))
|
|
for _, line := range bytes.Split(stdOut.Bytes(), []byte{'\000'}) {
|
|
fileList = append(fileList, string(line))
|
|
}
|
|
|
|
return fileList, nil
|
|
}
|
|
|
|
// RemoveFilesFromIndex removes the given files from the index
|
|
func (t *TemporaryUploadRepository) RemoveFilesFromIndex(filenames ...string) error {
|
|
objFmt, err := t.gitRepo.GetObjectFormat()
|
|
if err != nil {
|
|
return fmt.Errorf("unable to get object format for temporary repo: %q, error: %w", t.repo.FullName(), err)
|
|
}
|
|
stdOut := new(bytes.Buffer)
|
|
stdErr := new(bytes.Buffer)
|
|
stdIn := new(bytes.Buffer)
|
|
for _, file := range filenames {
|
|
if file != "" {
|
|
// man git-update-index: input syntax (1): mode SP sha1 TAB path
|
|
// mode=0 means "remove from index", then hash part "does not matter as long as it is well formatted."
|
|
_, _ = fmt.Fprintf(stdIn, "0 %s\t%s\x00", objFmt.EmptyObjectID(), file)
|
|
}
|
|
}
|
|
|
|
if err := git.NewCommand(t.ctx, "update-index", "--remove", "-z", "--index-info").
|
|
Run(&git.RunOpts{
|
|
Dir: t.basePath,
|
|
Stdin: stdIn,
|
|
Stdout: stdOut,
|
|
Stderr: stdErr,
|
|
}); err != nil {
|
|
return fmt.Errorf("unable to update-index for temporary repo: %q, error: %w\nstdout: %s\nstderr: %s", t.repo.FullName(), err, stdOut.String(), stdErr.String())
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// HashObject writes the provided content to the object db and returns its hash
|
|
func (t *TemporaryUploadRepository) HashObject(content io.Reader) (string, error) {
|
|
stdOut := new(bytes.Buffer)
|
|
stdErr := new(bytes.Buffer)
|
|
|
|
if err := git.NewCommand(t.ctx, "hash-object", "-w", "--stdin").
|
|
Run(&git.RunOpts{
|
|
Dir: t.basePath,
|
|
Stdin: content,
|
|
Stdout: stdOut,
|
|
Stderr: stdErr,
|
|
}); err != nil {
|
|
log.Error("Unable to hash-object to temporary repo: %s (%s) Error: %v\nstdout: %s\nstderr: %s", t.repo.FullName(), t.basePath, err, stdOut.String(), stdErr.String())
|
|
return "", fmt.Errorf("Unable to hash-object to temporary repo: %s Error: %w\nstdout: %s\nstderr: %s", t.repo.FullName(), err, stdOut.String(), stdErr.String())
|
|
}
|
|
|
|
return strings.TrimSpace(stdOut.String()), nil
|
|
}
|
|
|
|
// AddObjectToIndex adds the provided object hash to the index with the provided mode and path
|
|
func (t *TemporaryUploadRepository) AddObjectToIndex(mode, objectHash, objectPath string) error {
|
|
if _, _, err := git.NewCommand(t.ctx, "update-index", "--add", "--replace", "--cacheinfo").AddDynamicArguments(mode, objectHash, objectPath).RunStdString(&git.RunOpts{Dir: t.basePath}); err != nil {
|
|
stderr := err.Error()
|
|
if matched, _ := regexp.MatchString(".*Invalid path '.*", stderr); matched {
|
|
return models.ErrFilePathInvalid{
|
|
Message: objectPath,
|
|
Path: objectPath,
|
|
}
|
|
}
|
|
log.Error("Unable to add object to index: %s %s %s in temporary repo %s(%s) Error: %v", mode, objectHash, objectPath, t.repo.FullName(), t.basePath, err)
|
|
return fmt.Errorf("Unable to add object to index at %s in temporary repo %s Error: %w", objectPath, t.repo.FullName(), err)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// WriteTree writes the current index as a tree to the object db and returns its hash
|
|
func (t *TemporaryUploadRepository) WriteTree() (string, error) {
|
|
stdout, _, err := git.NewCommand(t.ctx, "write-tree").RunStdString(&git.RunOpts{Dir: t.basePath})
|
|
if err != nil {
|
|
log.Error("Unable to write tree in temporary repo: %s(%s): Error: %v", t.repo.FullName(), t.basePath, err)
|
|
return "", fmt.Errorf("Unable to write-tree in temporary repo for: %s Error: %w", t.repo.FullName(), err)
|
|
}
|
|
return strings.TrimSpace(stdout), nil
|
|
}
|
|
|
|
// GetLastCommit gets the last commit ID SHA of the repo
|
|
func (t *TemporaryUploadRepository) GetLastCommit() (string, error) {
|
|
return t.GetLastCommitByRef("HEAD")
|
|
}
|
|
|
|
// GetLastCommitByRef gets the last commit ID SHA of the repo by ref
|
|
func (t *TemporaryUploadRepository) GetLastCommitByRef(ref string) (string, error) {
|
|
if ref == "" {
|
|
ref = "HEAD"
|
|
}
|
|
stdout, _, err := git.NewCommand(t.ctx, "rev-parse").AddDynamicArguments(ref).RunStdString(&git.RunOpts{Dir: t.basePath})
|
|
if err != nil {
|
|
log.Error("Unable to get last ref for %s in temporary repo: %s(%s): Error: %v", ref, t.repo.FullName(), t.basePath, err)
|
|
return "", fmt.Errorf("Unable to rev-parse %s in temporary repo for: %s Error: %w", ref, t.repo.FullName(), err)
|
|
}
|
|
return strings.TrimSpace(stdout), nil
|
|
}
|
|
|
|
// CommitTree creates a commit from a given tree for the user with provided message
|
|
func (t *TemporaryUploadRepository) CommitTree(parent string, author, committer *user_model.User, treeHash, message string, signoff bool) (string, error) {
|
|
return t.CommitTreeWithDate(parent, author, committer, treeHash, message, signoff, time.Now(), time.Now())
|
|
}
|
|
|
|
// CommitTreeWithDate creates a commit from a given tree for the user with provided message
|
|
func (t *TemporaryUploadRepository) CommitTreeWithDate(parent string, author, committer *user_model.User, treeHash, message string, signoff bool, authorDate, committerDate time.Time) (string, error) {
|
|
authorSig := author.NewGitSig()
|
|
committerSig := committer.NewGitSig()
|
|
|
|
// Because this may call hooks we should pass in the environment
|
|
env := append(os.Environ(),
|
|
"GIT_AUTHOR_NAME="+authorSig.Name,
|
|
"GIT_AUTHOR_EMAIL="+authorSig.Email,
|
|
"GIT_AUTHOR_DATE="+authorDate.Format(time.RFC3339),
|
|
"GIT_COMMITTER_DATE="+committerDate.Format(time.RFC3339),
|
|
)
|
|
|
|
messageBytes := new(bytes.Buffer)
|
|
_, _ = messageBytes.WriteString(message)
|
|
_, _ = messageBytes.WriteString("\n")
|
|
|
|
cmdCommitTree := git.NewCommand(t.ctx, "commit-tree").AddDynamicArguments(treeHash)
|
|
if parent != "" {
|
|
cmdCommitTree.AddOptionValues("-p", parent)
|
|
}
|
|
|
|
var sign bool
|
|
var keyID string
|
|
var signer *git.Signature
|
|
if parent != "" {
|
|
sign, keyID, signer, _ = asymkey_service.SignCRUDAction(t.ctx, t.repo.RepoPath(), author, t.basePath, parent)
|
|
} else {
|
|
sign, keyID, signer, _ = asymkey_service.SignInitialCommit(t.ctx, t.repo.RepoPath(), author)
|
|
}
|
|
if sign {
|
|
cmdCommitTree.AddOptionFormat("-S%s", keyID)
|
|
if t.repo.GetTrustModel() == repo_model.CommitterTrustModel || t.repo.GetTrustModel() == repo_model.CollaboratorCommitterTrustModel {
|
|
if committerSig.Name != authorSig.Name || committerSig.Email != authorSig.Email {
|
|
// Add trailers
|
|
_, _ = messageBytes.WriteString("\n")
|
|
_, _ = messageBytes.WriteString("Co-authored-by: ")
|
|
_, _ = messageBytes.WriteString(committerSig.String())
|
|
_, _ = messageBytes.WriteString("\n")
|
|
_, _ = messageBytes.WriteString("Co-committed-by: ")
|
|
_, _ = messageBytes.WriteString(committerSig.String())
|
|
_, _ = messageBytes.WriteString("\n")
|
|
}
|
|
committerSig = signer
|
|
}
|
|
} else {
|
|
cmdCommitTree.AddArguments("--no-gpg-sign")
|
|
}
|
|
|
|
if signoff {
|
|
// Signed-off-by
|
|
_, _ = messageBytes.WriteString("\n")
|
|
_, _ = messageBytes.WriteString("Signed-off-by: ")
|
|
_, _ = messageBytes.WriteString(committerSig.String())
|
|
}
|
|
|
|
env = append(env,
|
|
"GIT_COMMITTER_NAME="+committerSig.Name,
|
|
"GIT_COMMITTER_EMAIL="+committerSig.Email,
|
|
)
|
|
|
|
stdout := new(bytes.Buffer)
|
|
stderr := new(bytes.Buffer)
|
|
if err := cmdCommitTree.
|
|
Run(&git.RunOpts{
|
|
Env: env,
|
|
Dir: t.basePath,
|
|
Stdin: messageBytes,
|
|
Stdout: stdout,
|
|
Stderr: stderr,
|
|
}); err != nil {
|
|
log.Error("Unable to commit-tree in temporary repo: %s (%s) Error: %v\nStdout: %s\nStderr: %s",
|
|
t.repo.FullName(), t.basePath, err, stdout, stderr)
|
|
return "", fmt.Errorf("Unable to commit-tree in temporary repo: %s Error: %w\nStdout: %s\nStderr: %s",
|
|
t.repo.FullName(), err, stdout, stderr)
|
|
}
|
|
return strings.TrimSpace(stdout.String()), nil
|
|
}
|
|
|
|
// Push the provided commitHash to the repository branch by the provided user
|
|
func (t *TemporaryUploadRepository) Push(doer *user_model.User, commitHash, branch string) error {
|
|
// Because calls hooks we need to pass in the environment
|
|
env := repo_module.PushingEnvironment(doer, t.repo)
|
|
if err := git.Push(t.ctx, t.basePath, git.PushOptions{
|
|
Remote: t.repo.RepoPath(),
|
|
Branch: strings.TrimSpace(commitHash) + ":" + git.BranchPrefix + strings.TrimSpace(branch),
|
|
Env: env,
|
|
}); err != nil {
|
|
if git.IsErrPushOutOfDate(err) {
|
|
return err
|
|
} else if git.IsErrPushRejected(err) {
|
|
rejectErr := err.(*git.ErrPushRejected)
|
|
log.Info("Unable to push back to repo from temporary repo due to rejection: %s (%s)\nStdout: %s\nStderr: %s\nError: %v",
|
|
t.repo.FullName(), t.basePath, rejectErr.StdOut, rejectErr.StdErr, rejectErr.Err)
|
|
return err
|
|
}
|
|
log.Error("Unable to push back to repo from temporary repo: %s (%s)\nError: %v",
|
|
t.repo.FullName(), t.basePath, err)
|
|
return fmt.Errorf("Unable to push back to repo from temporary repo: %s (%s) Error: %v",
|
|
t.repo.FullName(), t.basePath, err)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// DiffIndex returns a Diff of the current index to the head
|
|
func (t *TemporaryUploadRepository) DiffIndex() (*gitdiff.Diff, error) {
|
|
stdoutReader, stdoutWriter, err := os.Pipe()
|
|
if err != nil {
|
|
log.Error("Unable to open stdout pipe: %v", err)
|
|
return nil, fmt.Errorf("Unable to open stdout pipe: %w", err)
|
|
}
|
|
defer func() {
|
|
_ = stdoutReader.Close()
|
|
_ = stdoutWriter.Close()
|
|
}()
|
|
stderr := new(bytes.Buffer)
|
|
var diff *gitdiff.Diff
|
|
var finalErr error
|
|
|
|
if err := git.NewCommand(t.ctx, "diff-index", "--src-prefix=\\a/", "--dst-prefix=\\b/", "--cached", "-p", "HEAD").
|
|
Run(&git.RunOpts{
|
|
Timeout: 30 * time.Second,
|
|
Dir: t.basePath,
|
|
Stdout: stdoutWriter,
|
|
Stderr: stderr,
|
|
PipelineFunc: func(ctx context.Context, cancel context.CancelFunc) error {
|
|
_ = stdoutWriter.Close()
|
|
diff, finalErr = gitdiff.ParsePatch(t.ctx, setting.Git.MaxGitDiffLines, setting.Git.MaxGitDiffLineCharacters, setting.Git.MaxGitDiffFiles, stdoutReader, "")
|
|
if finalErr != nil {
|
|
log.Error("ParsePatch: %v", finalErr)
|
|
cancel()
|
|
}
|
|
_ = stdoutReader.Close()
|
|
return finalErr
|
|
},
|
|
}); err != nil {
|
|
if finalErr != nil {
|
|
log.Error("Unable to ParsePatch in temporary repo %s (%s). Error: %v", t.repo.FullName(), t.basePath, finalErr)
|
|
return nil, finalErr
|
|
}
|
|
log.Error("Unable to run diff-index pipeline in temporary repo %s (%s). Error: %v\nStderr: %s",
|
|
t.repo.FullName(), t.basePath, err, stderr)
|
|
return nil, fmt.Errorf("Unable to run diff-index pipeline in temporary repo %s. Error: %w\nStderr: %s",
|
|
t.repo.FullName(), err, stderr)
|
|
}
|
|
|
|
diff.NumFiles, diff.TotalAddition, diff.TotalDeletion, err = git.GetDiffShortStat(t.ctx, t.basePath, git.TrustedCmdArgs{"--cached"}, "HEAD")
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return diff, nil
|
|
}
|
|
|
|
// GetBranchCommit Gets the commit object of the given branch
|
|
func (t *TemporaryUploadRepository) GetBranchCommit(branch string) (*git.Commit, error) {
|
|
if t.gitRepo == nil {
|
|
return nil, fmt.Errorf("repository has not been cloned")
|
|
}
|
|
return t.gitRepo.GetBranchCommit(branch)
|
|
}
|
|
|
|
// GetCommit Gets the commit object of the given commit ID
|
|
func (t *TemporaryUploadRepository) GetCommit(commitID string) (*git.Commit, error) {
|
|
if t.gitRepo == nil {
|
|
return nil, fmt.Errorf("repository has not been cloned")
|
|
}
|
|
return t.gitRepo.GetCommit(commitID)
|
|
}
|