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forgejo/models/repo_editor.go

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// 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/ioutil"
"os"
"os/exec"
"path"
"path/filepath"
"time"
"github.com/Unknwon/com"
git "github.com/gogits/git-module"
"github.com/gogits/gogs/modules/log"
"github.com/gogits/gogs/modules/process"
"github.com/gogits/gogs/modules/setting"
)
// ___________ .___.__ __ ___________.__.__
// \_ _____/ __| _/|__|/ |_ \_ _____/|__| | ____
// | __)_ / __ | | \ __\ | __) | | | _/ __ \
// | \/ /_/ | | || | | \ | | |_\ ___/
// /_______ /\____ | |__||__| \___ / |__|____/\___ >
// \/ \/ \/ \/
// discardLocalRepoBranchChanges discards local commits of given branch
// to make sure it is even to remote branch when local copy exists.
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
}
if err := git.ResetHEAD(localPath, true, "origin/"+branch); err != nil {
return fmt.Errorf("ResetHEAD: %v", err)
}
return nil
}
func (repo *Repository) DiscardLocalRepoBranchChanges(branch string) error {
return discardLocalRepoBranchChanges(repo.LocalCopyPath(), branch)
}
func checkoutNewBranch(repoPath, localPath, oldBranch, newBranch string) error {
if !com.IsExist(localPath) {
if err := UpdateLocalCopyBranch(repoPath, localPath, oldBranch); err != nil {
return err
}
}
if err := git.Checkout(localPath, git.CheckoutOptions{
Branch: newBranch,
OldBranch: oldBranch,
Timeout: time.Duration(setting.Git.Timeout.Pull) * time.Second,
}); err != nil {
return fmt.Errorf("Checkout: %v", err)
}
return nil
}
// CheckoutNewBranch checks out a new branch from the given branch name.
func (repo *Repository) CheckoutNewBranch(oldBranch, newBranch string) error {
return checkoutNewBranch(repo.RepoPath(), repo.LocalCopyPath(), oldBranch, newBranch)
}
type UpdateRepoFileOptions struct {
LastCommitID string
OldBranch string
NewBranch string
OldTreeName string
NewTreeName string
Message string
Content string
IsNewFile bool
}
// updateRepoFile adds new file to 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()
filePath := path.Join(localPath, opts.NewTreeName)
if len(opts.Message) == 0 {
if opts.IsNewFile {
opts.Message = "Add '" + opts.NewTreeName + "'"
} else {
opts.Message = "Update '" + opts.NewTreeName + "'"
}
}
os.MkdirAll(path.Dir(filePath), os.ModePerm)
// If new file, make sure it doesn't exist; if old file, move if file name change.
if opts.IsNewFile {
if com.IsExist(filePath) {
return ErrRepoFileAlreadyExist{filePath}
}
} else if len(opts.OldTreeName) > 0 && len(opts.NewTreeName) > 0 && opts.NewTreeName != opts.OldTreeName {
if err = git.MoveFile(localPath, opts.OldTreeName, opts.NewTreeName); err != nil {
return fmt.Errorf("MoveFile [old_tree_name: %s, new_tree_name: %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("AddChanges: %v", err)
} else if err = git.CommitChanges(localPath, opts.Message, doer.NewGitSig()); err != nil {
return fmt.Errorf("CommitChanges: %v", err)
} else if err = git.Push(localPath, "origin", opts.NewBranch); err != nil {
return fmt.Errorf("Push: %v", 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
}
pushCommits := &PushCommits{
Len: 1,
Commits: []*PushCommit{CommitToPushCommit(commit)},
}
oldCommitID := opts.LastCommitID
if opts.NewBranch != opts.OldBranch {
oldCommitID = "0000000000000000000000000000000000000000" // New Branch so we use all 0s
}
if err := CommitRepoAction(doer.ID, repo.MustOwner().ID, doer.Name, doer.Email,
repo.ID, repo.MustOwner().Name, repo.Name, git.BRANCH_PREFIX+opts.NewBranch,
pushCommits, oldCommitID, commit.ID.String()); err != nil {
log.Error(4, "CommitRepoAction: %v", err)
return nil
}
go HookQueue.Add(repo.ID)
return nil
}
func (repo *Repository) GetDiffPreview(branch, treeName, 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("discardLocalRepoChanges: %s - %v", branch, err)
} else if err = repo.UpdateLocalCopyBranch(branch); err != nil {
return nil, fmt.Errorf("UpdateLocalCopyBranch: %s - %v", branch, err)
}
localPath := repo.LocalCopyPath()
filePath := path.Join(localPath, treeName)
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", treeName)
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("GetDiffRange [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
}