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gitea/modules/git/repo_pull.go
2015-11-16 21:18:04 -05:00

104 lines
3.2 KiB
Go

// Copyright 2015 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 git
import (
"container/list"
"fmt"
"strings"
"time"
"github.com/Unknwon/com"
)
type PullRequestInfo struct {
MergeBase string
Commits *list.List
// Diff *Diff
NumFiles int
}
// GetMergeBase checks and returns merge base of two branches.
func (repo *Repository) GetMergeBase(remoteBranch, headBranch string) (string, error) {
// Get merge base commit.
stdout, stderr, err := com.ExecCmdDir(repo.Path, "git", "merge-base", remoteBranch, headBranch)
if err != nil {
return "", fmt.Errorf("get merge base: %v", concatenateError(err, stderr))
}
return strings.TrimSpace(stdout), nil
}
// AddRemote adds a remote to repository.
func (repo *Repository) AddRemote(name, path string) error {
_, stderr, err := com.ExecCmdDir(repo.Path, "git", "remote", "add", "-f", name, path)
if err != nil {
return fmt.Errorf("add remote(%s - %s): %v", name, path, concatenateError(err, stderr))
}
return nil
}
// RemoveRemote removes a remote from repository.
func (repo *Repository) RemoveRemote(name string) error {
_, stderr, err := com.ExecCmdDir(repo.Path, "git", "remote", "remove", name)
if err != nil {
return fmt.Errorf("remove remote(%s): %v", name, concatenateError(err, stderr))
}
return nil
}
// GetPullRequestInfo generates and returns pull request information
// between base and head branches of repositories.
func (repo *Repository) GetPullRequestInfo(basePath, baseBranch, headBranch string) (_ *PullRequestInfo, err error) {
// Add a temporary remote.
tmpRemote := com.ToStr(time.Now().UnixNano())
if err = repo.AddRemote(tmpRemote, basePath); err != nil {
return nil, fmt.Errorf("AddRemote: %v", err)
}
defer func() {
repo.RemoveRemote(tmpRemote)
}()
remoteBranch := "remotes/" + tmpRemote + "/" + baseBranch
prInfo := new(PullRequestInfo)
prInfo.MergeBase, err = repo.GetMergeBase(remoteBranch, headBranch)
if err != nil {
return nil, fmt.Errorf("GetMergeBase: %v", err)
}
stdout, stderr, err := com.ExecCmdDir(repo.Path, "git", "log", prInfo.MergeBase+"..."+headBranch, prettyLogFormat)
if err != nil {
return nil, fmt.Errorf("list diff logs: %v", concatenateError(err, stderr))
}
prInfo.Commits, err = parsePrettyFormatLog(repo, []byte(stdout))
if err != nil {
return nil, fmt.Errorf("parsePrettyFormatLog: %v", err)
}
// Count number of changed files.
stdout, stderr, err = com.ExecCmdDir(repo.Path, "git", "diff", "--name-only", remoteBranch+"..."+headBranch)
if err != nil {
return nil, fmt.Errorf("list changed files: %v", concatenateError(err, stderr))
}
prInfo.NumFiles = len(strings.Split(stdout, "\n")) - 1
return prInfo, nil
}
// GetPatch generates and returns patch data between given branches.
func (repo *Repository) GetPatch(mergeBase, headBranch string) ([]byte, error) {
stdout, stderr, err := com.ExecCmdDirBytes(repo.Path, "git", "diff", "-p", "--binary", mergeBase, headBranch)
if err != nil {
return nil, concatenateError(err, string(stderr))
}
return stdout, nil
}
// Merge merges pull request from head repository and branch.
func (repo *Repository) Merge(headRepoPath string, baseBranch, headBranch string) error {
return nil
}