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gitea/vendor/code.gitea.io/git/repo_pull.go

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2016-11-03 23:16:01 +01:00
// 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"
"strconv"
"strings"
"time"
)
// PullRequestInfo represents needed information for a pull request.
type PullRequestInfo struct {
MergeBase string
Commits *list.List
NumFiles int
}
// GetMergeBase checks and returns merge base of two branches.
func (repo *Repository) GetMergeBase(base, head string) (string, error) {
stdout, err := NewCommand("merge-base", base, head).RunInDir(repo.Path)
return strings.TrimSpace(stdout), err
}
// 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) {
var remoteBranch 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, true); err != nil {
return nil, fmt.Errorf("AddRemote: %v", err)
}
defer repo.RemoveRemote(tmpRemote)
remoteBranch = "remotes/" + tmpRemote + "/" + baseBranch
} else {
remoteBranch = baseBranch
}
prInfo := new(PullRequestInfo)
prInfo.MergeBase, err = repo.GetMergeBase(remoteBranch, headBranch)
if err != nil {
return nil, fmt.Errorf("GetMergeBase: %v", err)
}
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logs, err := NewCommand("log", prInfo.MergeBase+"..."+headBranch, prettyLogFormat).RunInDirBytes(repo.Path)
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if err != nil {
return nil, err
}
prInfo.Commits, err = repo.parsePrettyFormatLogToList(logs)
if err != nil {
return nil, fmt.Errorf("parsePrettyFormatLogToList: %v", err)
}
// Count number of changed files.
stdout, err := NewCommand("diff", "--name-only", remoteBranch+"..."+headBranch).RunInDir(repo.Path)
if err != nil {
return nil, err
}
prInfo.NumFiles = len(strings.Split(stdout, "\n")) - 1
return prInfo, 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)
}