113 lines
3.4 KiB
Go
113 lines
3.4 KiB
Go
// Copyright 2015 The Gogs Authors. All rights reserved.
|
|
// 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 git
|
|
|
|
import (
|
|
"bytes"
|
|
"container/list"
|
|
"fmt"
|
|
"io"
|
|
"strconv"
|
|
"strings"
|
|
"time"
|
|
|
|
logger "code.gitea.io/gitea/modules/log"
|
|
)
|
|
|
|
// CompareInfo represents needed information for comparing references.
|
|
type CompareInfo struct {
|
|
MergeBase string
|
|
Commits *list.List
|
|
NumFiles int
|
|
}
|
|
|
|
// GetMergeBase checks and returns merge base of two branches and the reference used as base.
|
|
func (repo *Repository) GetMergeBase(tmpRemote string, base, head string) (string, string, error) {
|
|
if tmpRemote == "" {
|
|
tmpRemote = "origin"
|
|
}
|
|
|
|
if tmpRemote != "origin" {
|
|
tmpBaseName := "refs/remotes/" + tmpRemote + "/tmp_" + base
|
|
// Fetch commit into a temporary branch in order to be able to handle commits and tags
|
|
_, err := NewCommand("fetch", tmpRemote, base+":"+tmpBaseName).RunInDir(repo.Path)
|
|
if err == nil {
|
|
base = tmpBaseName
|
|
}
|
|
}
|
|
|
|
stdout, err := NewCommand("merge-base", "--", base, head).RunInDir(repo.Path)
|
|
return strings.TrimSpace(stdout), base, err
|
|
}
|
|
|
|
// GetCompareInfo generates and returns compare information between base and head branches of repositories.
|
|
func (repo *Repository) GetCompareInfo(basePath, baseBranch, headBranch string) (_ *CompareInfo, err error) {
|
|
var (
|
|
remoteBranch string
|
|
tmpRemote string
|
|
)
|
|
|
|
// We don't need a temporary remote for same repository.
|
|
if repo.Path != basePath {
|
|
// Add a temporary remote
|
|
tmpRemote = strconv.FormatInt(time.Now().UnixNano(), 10)
|
|
if err = repo.AddRemote(tmpRemote, basePath, false); err != nil {
|
|
return nil, fmt.Errorf("AddRemote: %v", err)
|
|
}
|
|
defer func() {
|
|
if err := repo.RemoveRemote(tmpRemote); err != nil {
|
|
logger.Error("GetPullRequestInfo: RemoveRemote: %v", err)
|
|
}
|
|
}()
|
|
}
|
|
|
|
compareInfo := new(CompareInfo)
|
|
compareInfo.MergeBase, remoteBranch, err = repo.GetMergeBase(tmpRemote, baseBranch, headBranch)
|
|
if err == nil {
|
|
// We have a common base
|
|
logs, err := NewCommand("log", compareInfo.MergeBase+"..."+headBranch, prettyLogFormat).RunInDirBytes(repo.Path)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
compareInfo.Commits, err = repo.parsePrettyFormatLogToList(logs)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("parsePrettyFormatLogToList: %v", err)
|
|
}
|
|
} else {
|
|
compareInfo.Commits = list.New()
|
|
compareInfo.MergeBase, err = GetFullCommitID(repo.Path, remoteBranch)
|
|
if err != nil {
|
|
compareInfo.MergeBase = remoteBranch
|
|
}
|
|
}
|
|
|
|
// Count number of changed files.
|
|
stdout, err := NewCommand("diff", "--name-only", remoteBranch+"..."+headBranch).RunInDir(repo.Path)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
compareInfo.NumFiles = len(strings.Split(stdout, "\n")) - 1
|
|
|
|
return compareInfo, nil
|
|
}
|
|
|
|
// GetPatch generates and returns patch data between given revisions.
|
|
func (repo *Repository) GetPatch(base, head string) ([]byte, error) {
|
|
return NewCommand("diff", "-p", "--binary", base, head).RunInDirBytes(repo.Path)
|
|
}
|
|
|
|
// GetFormatPatch generates and returns format-patch data between given revisions.
|
|
func (repo *Repository) GetFormatPatch(base, head string) (io.Reader, error) {
|
|
stdout := new(bytes.Buffer)
|
|
stderr := new(bytes.Buffer)
|
|
|
|
if err := NewCommand("format-patch", "--binary", "--stdout", base+"..."+head).
|
|
RunInDirPipeline(repo.Path, stdout, stderr); err != nil {
|
|
return nil, concatenateError(err, stderr.String())
|
|
}
|
|
return stdout, nil
|
|
}
|