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				https://gitee.com/gitea/gitea
				synced 2025-11-04 08:30:25 +08:00 
			
		
		
		
	Adjust error reporting from merge failures and use LC_ALL=C for git (#8548)
There are two major components to this PR: * This PR handles merge and rebase failures from merging a little more nicely with Flash errors rather a 500. * All git commands are run in the LC_ALL="C" environment to ensure that error messages are in English. This DefaultLocale is defined in a way that if necessary (due to platform weirdness) it can be overridden at build time using LDFLAGS="-X "code.gitea.io/gitea/modules/git.DefaultLocale=C"" with C changed for the locale as necessary.
This commit is contained in:
		@@ -32,22 +32,27 @@ import (
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func Merge(pr *models.PullRequest, doer *models.User, baseGitRepo *git.Repository, mergeStyle models.MergeStyle, message string) (err error) {
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	binVersion, err := git.BinVersion()
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	if err != nil {
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		log.Error("git.BinVersion: %v", err)
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		return fmt.Errorf("Unable to get git version: %v", err)
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	}
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	if err = pr.GetHeadRepo(); err != nil {
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		log.Error("GetHeadRepo: %v", err)
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		return fmt.Errorf("GetHeadRepo: %v", err)
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	} else if err = pr.GetBaseRepo(); err != nil {
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		log.Error("GetBaseRepo: %v", err)
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		return fmt.Errorf("GetBaseRepo: %v", err)
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	}
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	prUnit, err := pr.BaseRepo.GetUnit(models.UnitTypePullRequests)
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	if err != nil {
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		log.Error("pr.BaseRepo.GetUnit(models.UnitTypePullRequests): %v", err)
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		return err
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	}
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	prConfig := prUnit.PullRequestsConfig()
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	if err := pr.CheckUserAllowedToMerge(doer); err != nil {
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		log.Error("CheckUserAllowedToMerge(%v): %v", doer, err)
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		return fmt.Errorf("CheckUserAllowedToMerge: %v", err)
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	}
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@@ -63,6 +68,7 @@ func Merge(pr *models.PullRequest, doer *models.User, baseGitRepo *git.Repositor
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	// Clone base repo.
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	tmpBasePath, err := models.CreateTemporaryPath("merge")
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	if err != nil {
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		log.Error("CreateTemporaryPath: %v", err)
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		return err
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	}
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@@ -75,7 +81,8 @@ func Merge(pr *models.PullRequest, doer *models.User, baseGitRepo *git.Repositor
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	headRepoPath := pr.HeadRepo.RepoPath()
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	if err := git.InitRepository(tmpBasePath, false); err != nil {
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		return fmt.Errorf("git init: %v", err)
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		log.Error("git init tmpBasePath: %v", err)
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		return err
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	}
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	remoteRepoName := "head_repo"
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@@ -86,102 +93,141 @@ func Merge(pr *models.PullRequest, doer *models.User, baseGitRepo *git.Repositor
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		p := filepath.Join(staging, ".git", "objects", "info", "alternates")
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		f, err := os.OpenFile(p, os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0600)
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		if err != nil {
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			log.Error("Could not create .git/objects/info/alternates file in %s: %v", staging, err)
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			return err
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		}
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		defer f.Close()
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		data := filepath.Join(cache, "objects")
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		if _, err := fmt.Fprintln(f, data); err != nil {
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			log.Error("Could not write to .git/objects/info/alternates file in %s: %v", staging, err)
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			return err
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		}
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		return nil
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	}
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	if err := addCacheRepo(tmpBasePath, baseGitRepo.Path); err != nil {
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		return fmt.Errorf("addCacheRepo [%s -> %s]: %v", headRepoPath, tmpBasePath, err)
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		log.Error("Unable to add base repository to temporary repo [%s -> %s]: %v", pr.BaseRepo.FullName(), tmpBasePath, err)
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		return fmt.Errorf("Unable to add base repository to temporary repo [%s -> tmpBasePath]: %v", pr.BaseRepo.FullName(), err)
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	}
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	var errbuf strings.Builder
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	if err := git.NewCommand("remote", "add", "-t", pr.BaseBranch, "-m", pr.BaseBranch, "origin", baseGitRepo.Path).RunInDirPipeline(tmpBasePath, nil, &errbuf); err != nil {
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		return fmt.Errorf("git remote add [%s -> %s]: %s", baseGitRepo.Path, tmpBasePath, errbuf.String())
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	var outbuf, errbuf strings.Builder
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	if err := git.NewCommand("remote", "add", "-t", pr.BaseBranch, "-m", pr.BaseBranch, "origin", baseGitRepo.Path).RunInDirPipeline(tmpBasePath, &outbuf, &errbuf); err != nil {
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		log.Error("Unable to add base repository as origin [%s -> %s]: %v\n%s\n%s", pr.BaseRepo.FullName(), tmpBasePath, err, outbuf.String(), errbuf.String())
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		return fmt.Errorf("Unable to add base repository as origin [%s -> tmpBasePath]: %v\n%s\n%s", pr.BaseRepo.FullName(), err, outbuf.String(), errbuf.String())
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	}
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	outbuf.Reset()
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	errbuf.Reset()
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	if err := git.NewCommand("fetch", "origin", "--no-tags", pr.BaseBranch+":"+baseBranch, pr.BaseBranch+":original_"+baseBranch).RunInDirPipeline(tmpBasePath, nil, &errbuf); err != nil {
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		return fmt.Errorf("git fetch [%s -> %s]: %s", headRepoPath, tmpBasePath, errbuf.String())
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	if err := git.NewCommand("fetch", "origin", "--no-tags", pr.BaseBranch+":"+baseBranch, pr.BaseBranch+":original_"+baseBranch).RunInDirPipeline(tmpBasePath, &outbuf, &errbuf); err != nil {
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		log.Error("Unable to fetch origin base branch [%s:%s -> base, original_base in %s]: %v:\n%s\n%s", pr.BaseRepo.FullName(), pr.BaseBranch, tmpBasePath, err, outbuf.String(), errbuf.String())
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		return fmt.Errorf("Unable to fetch origin base branch [%s:%s -> base, original_base in tmpBasePath]: %v\n%s\n%s", pr.BaseRepo.FullName(), pr.BaseBranch, err, outbuf.String(), errbuf.String())
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	}
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	outbuf.Reset()
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	errbuf.Reset()
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	if err := git.NewCommand("symbolic-ref", "HEAD", git.BranchPrefix+baseBranch).RunInDirPipeline(tmpBasePath, nil, &errbuf); err != nil {
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		return fmt.Errorf("git symbolic-ref HEAD base [%s]: %s", tmpBasePath, errbuf.String())
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	if err := git.NewCommand("symbolic-ref", "HEAD", git.BranchPrefix+baseBranch).RunInDirPipeline(tmpBasePath, &outbuf, &errbuf); err != nil {
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		log.Error("Unable to set HEAD as base branch [%s]: %v\n%s\n%s", tmpBasePath, err, outbuf.String(), errbuf.String())
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		return fmt.Errorf("Unable to set HEAD as base branch [tmpBasePath]: %v\n%s\n%s", err, outbuf.String(), errbuf.String())
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	}
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	outbuf.Reset()
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	errbuf.Reset()
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	if err := addCacheRepo(tmpBasePath, headRepoPath); err != nil {
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		return fmt.Errorf("addCacheRepo [%s -> %s]: %v", headRepoPath, tmpBasePath, err)
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		log.Error("Unable to add head repository to temporary repo [%s -> %s]: %v", pr.HeadRepo.FullName(), tmpBasePath, err)
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		return fmt.Errorf("Unable to head base repository to temporary repo [%s -> tmpBasePath]: %v", pr.HeadRepo.FullName(), err)
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	}
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	if err := git.NewCommand("remote", "add", remoteRepoName, headRepoPath).RunInDirPipeline(tmpBasePath, nil, &errbuf); err != nil {
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		return fmt.Errorf("git remote add [%s -> %s]: %s", headRepoPath, tmpBasePath, errbuf.String())
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	if err := git.NewCommand("remote", "add", remoteRepoName, headRepoPath).RunInDirPipeline(tmpBasePath, &outbuf, &errbuf); err != nil {
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		log.Error("Unable to add head repository as head_repo [%s -> %s]: %v\n%s\n%s", pr.HeadRepo.FullName(), tmpBasePath, err, outbuf.String(), errbuf.String())
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		return fmt.Errorf("Unable to add head repository as head_repo [%s -> tmpBasePath]: %v\n%s\n%s", pr.HeadRepo.FullName(), err, outbuf.String(), errbuf.String())
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	}
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	outbuf.Reset()
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	errbuf.Reset()
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	trackingBranch := "tracking"
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	// Fetch head branch
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	if err := git.NewCommand("fetch", "--no-tags", remoteRepoName, pr.HeadBranch+":"+trackingBranch).RunInDirPipeline(tmpBasePath, nil, &errbuf); err != nil {
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		return fmt.Errorf("git fetch [%s -> %s]: %s", headRepoPath, tmpBasePath, errbuf.String())
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	if err := git.NewCommand("fetch", "--no-tags", remoteRepoName, pr.HeadBranch+":"+trackingBranch).RunInDirPipeline(tmpBasePath, &outbuf, &errbuf); err != nil {
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		log.Error("Unable to fetch head_repo head branch [%s:%s -> tracking in %s]: %v:\n%s\n%s", pr.HeadRepo.FullName(), pr.HeadBranch, tmpBasePath, err, outbuf.String(), errbuf.String())
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		return fmt.Errorf("Unable to fetch head_repo head branch [%s:%s -> tracking in tmpBasePath]: %v\n%s\n%s", pr.HeadRepo.FullName(), pr.HeadBranch, err, outbuf.String(), errbuf.String())
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	}
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	outbuf.Reset()
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	errbuf.Reset()
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	stagingBranch := "staging"
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	// Enable sparse-checkout
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	sparseCheckoutList, err := getDiffTree(tmpBasePath, baseBranch, trackingBranch)
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	if err != nil {
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		log.Error("getDiffTree(%s, %s, %s): %v", tmpBasePath, baseBranch, trackingBranch, err)
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		return fmt.Errorf("getDiffTree: %v", err)
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	}
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	infoPath := filepath.Join(tmpBasePath, ".git", "info")
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	if err := os.MkdirAll(infoPath, 0700); err != nil {
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		return fmt.Errorf("creating directory failed [%s]: %v", infoPath, err)
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		log.Error("Unable to create .git/info in %s: %v", tmpBasePath, err)
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		return fmt.Errorf("Unable to create .git/info in tmpBasePath: %v", err)
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	}
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	sparseCheckoutListPath := filepath.Join(infoPath, "sparse-checkout")
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	if err := ioutil.WriteFile(sparseCheckoutListPath, []byte(sparseCheckoutList), 0600); err != nil {
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		return fmt.Errorf("Writing sparse-checkout file to %s: %v", sparseCheckoutListPath, err)
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		log.Error("Unable to write .git/info/sparse-checkout file in %s: %v", tmpBasePath, err)
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		return fmt.Errorf("Unable to write .git/info/sparse-checkout file in tmpBasePath: %v", err)
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	}
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	gitConfigCommand := func() func() *git.Command {
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		binVersion, err := git.BinVersion()
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		if err != nil {
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			log.Fatal("Error retrieving git version: %v", err)
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	var gitConfigCommand func() *git.Command
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	if version.Compare(binVersion, "1.8.0", ">=") {
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		gitConfigCommand = func() *git.Command {
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			return git.NewCommand("config", "--local")
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		}
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		if version.Compare(binVersion, "1.8.0", ">=") {
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			return func() *git.Command {
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				return git.NewCommand("config", "--local")
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			}
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		}
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		return func() *git.Command {
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	} else {
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		gitConfigCommand = func() *git.Command {
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			return git.NewCommand("config")
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		}
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	}()
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	}
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	// Switch off LFS process (set required, clean and smudge here also)
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	if err := gitConfigCommand().AddArguments("filter.lfs.process", "").RunInDirPipeline(tmpBasePath, nil, &errbuf); err != nil {
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		return fmt.Errorf("git config [filter.lfs.process -> <> ]: %v", errbuf.String())
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	}
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	if err := gitConfigCommand().AddArguments("filter.lfs.required", "false").RunInDirPipeline(tmpBasePath, nil, &errbuf); err != nil {
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		return fmt.Errorf("git config [filter.lfs.required -> <false> ]: %v", errbuf.String())
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	}
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	if err := gitConfigCommand().AddArguments("filter.lfs.clean", "").RunInDirPipeline(tmpBasePath, nil, &errbuf); err != nil {
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		return fmt.Errorf("git config [filter.lfs.clean -> <> ]: %v", errbuf.String())
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	}
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	if err := gitConfigCommand().AddArguments("filter.lfs.smudge", "").RunInDirPipeline(tmpBasePath, nil, &errbuf); err != nil {
 | 
			
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		return fmt.Errorf("git config [filter.lfs.smudge -> <> ]: %v", errbuf.String())
 | 
			
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	if err := gitConfigCommand().AddArguments("filter.lfs.process", "").RunInDirPipeline(tmpBasePath, &outbuf, &errbuf); err != nil {
 | 
			
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		log.Error("git config [filter.lfs.process -> <> ]: %v\n%s\n%s", err, outbuf.String(), errbuf.String())
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		return fmt.Errorf("git config [filter.lfs.process -> <> ]: %v\n%s\n%s", err, outbuf.String(), errbuf.String())
 | 
			
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	}
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	outbuf.Reset()
 | 
			
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	errbuf.Reset()
 | 
			
		||||
 | 
			
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	if err := gitConfigCommand().AddArguments("core.sparseCheckout", "true").RunInDirPipeline(tmpBasePath, nil, &errbuf); err != nil {
 | 
			
		||||
		return fmt.Errorf("git config [core.sparsecheckout -> true]: %v", errbuf.String())
 | 
			
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	if err := gitConfigCommand().AddArguments("filter.lfs.required", "false").RunInDirPipeline(tmpBasePath, &outbuf, &errbuf); err != nil {
 | 
			
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		log.Error("git config [filter.lfs.required -> <false> ]: %v\n%s\n%s", err, outbuf.String(), errbuf.String())
 | 
			
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		return fmt.Errorf("git config [filter.lfs.required -> <false> ]: %v\n%s\n%s", err, outbuf.String(), errbuf.String())
 | 
			
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	}
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	outbuf.Reset()
 | 
			
		||||
	errbuf.Reset()
 | 
			
		||||
 | 
			
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	if err := gitConfigCommand().AddArguments("filter.lfs.clean", "").RunInDirPipeline(tmpBasePath, &outbuf, &errbuf); err != nil {
 | 
			
		||||
		log.Error("git config [filter.lfs.clean -> <> ]: %v\n%s\n%s", err, outbuf.String(), errbuf.String())
 | 
			
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		return fmt.Errorf("git config [filter.lfs.clean -> <> ]: %v\n%s\n%s", err, outbuf.String(), errbuf.String())
 | 
			
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	}
 | 
			
		||||
	outbuf.Reset()
 | 
			
		||||
	errbuf.Reset()
 | 
			
		||||
 | 
			
		||||
	if err := gitConfigCommand().AddArguments("filter.lfs.smudge", "").RunInDirPipeline(tmpBasePath, &outbuf, &errbuf); err != nil {
 | 
			
		||||
		log.Error("git config [filter.lfs.smudge -> <> ]: %v\n%s\n%s", err, outbuf.String(), errbuf.String())
 | 
			
		||||
		return fmt.Errorf("git config [filter.lfs.smudge -> <> ]: %v\n%s\n%s", err, outbuf.String(), errbuf.String())
 | 
			
		||||
	}
 | 
			
		||||
	outbuf.Reset()
 | 
			
		||||
	errbuf.Reset()
 | 
			
		||||
 | 
			
		||||
	if err := gitConfigCommand().AddArguments("core.sparseCheckout", "true").RunInDirPipeline(tmpBasePath, &outbuf, &errbuf); err != nil {
 | 
			
		||||
		log.Error("git config [core.sparseCheckout -> true ]: %v\n%s\n%s", err, outbuf.String(), errbuf.String())
 | 
			
		||||
		return fmt.Errorf("git config [core.sparsecheckout -> true]: %v\n%s\n%s", err, outbuf.String(), errbuf.String())
 | 
			
		||||
	}
 | 
			
		||||
	outbuf.Reset()
 | 
			
		||||
	errbuf.Reset()
 | 
			
		||||
 | 
			
		||||
	// Read base branch index
 | 
			
		||||
	if err := git.NewCommand("read-tree", "HEAD").RunInDirPipeline(tmpBasePath, nil, &errbuf); err != nil {
 | 
			
		||||
		return fmt.Errorf("git read-tree HEAD: %s", errbuf.String())
 | 
			
		||||
	if err := git.NewCommand("read-tree", "HEAD").RunInDirPipeline(tmpBasePath, &outbuf, &errbuf); err != nil {
 | 
			
		||||
		log.Error("git read-tree HEAD: %v\n%s\n%s", err, outbuf.String(), errbuf.String())
 | 
			
		||||
		return fmt.Errorf("Unable to read base branch in to the index: %v\n%s\n%s", err, outbuf.String(), errbuf.String())
 | 
			
		||||
	}
 | 
			
		||||
	outbuf.Reset()
 | 
			
		||||
	errbuf.Reset()
 | 
			
		||||
 | 
			
		||||
	// Determine if we should sign
 | 
			
		||||
	signArg := ""
 | 
			
		||||
@@ -210,80 +256,102 @@ func Merge(pr *models.PullRequest, doer *models.User, baseGitRepo *git.Repositor
 | 
			
		||||
	// Merge commits.
 | 
			
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	switch mergeStyle {
 | 
			
		||||
	case models.MergeStyleMerge:
 | 
			
		||||
		if err := git.NewCommand("merge", "--no-ff", "--no-commit", trackingBranch).RunInDirPipeline(tmpBasePath, nil, &errbuf); err != nil {
 | 
			
		||||
			return fmt.Errorf("git merge --no-ff --no-commit [%s]: %v - %s", tmpBasePath, err, errbuf.String())
 | 
			
		||||
		cmd := git.NewCommand("merge", "--no-ff", "--no-commit", trackingBranch)
 | 
			
		||||
		if err := runMergeCommand(pr, mergeStyle, cmd, tmpBasePath); err != nil {
 | 
			
		||||
			log.Error("Unable to merge tracking into base: %v", err)
 | 
			
		||||
			return err
 | 
			
		||||
		}
 | 
			
		||||
 | 
			
		||||
		if signArg == "" {
 | 
			
		||||
			if err := git.NewCommand("commit", "-m", message).RunInDirTimeoutEnvPipeline(env, -1, tmpBasePath, nil, &errbuf); err != nil {
 | 
			
		||||
				return fmt.Errorf("git commit [%s]: %v - %s", tmpBasePath, err, errbuf.String())
 | 
			
		||||
			}
 | 
			
		||||
		} else {
 | 
			
		||||
			if err := git.NewCommand("commit", signArg, "-m", message).RunInDirTimeoutEnvPipeline(env, -1, tmpBasePath, nil, &errbuf); err != nil {
 | 
			
		||||
				return fmt.Errorf("git commit [%s]: %v - %s", tmpBasePath, err, errbuf.String())
 | 
			
		||||
			}
 | 
			
		||||
		if err := commitAndSignNoAuthor(pr, message, signArg, tmpBasePath, env); err != nil {
 | 
			
		||||
			log.Error("Unable to make final commit: %v", err)
 | 
			
		||||
			return err
 | 
			
		||||
		}
 | 
			
		||||
	case models.MergeStyleRebase:
 | 
			
		||||
		// Checkout head branch
 | 
			
		||||
		if err := git.NewCommand("checkout", "-b", stagingBranch, trackingBranch).RunInDirPipeline(tmpBasePath, nil, &errbuf); err != nil {
 | 
			
		||||
			return fmt.Errorf("git checkout: %s", errbuf.String())
 | 
			
		||||
		}
 | 
			
		||||
		// Rebase before merging
 | 
			
		||||
		if err := git.NewCommand("rebase", "-q", baseBranch).RunInDirPipeline(tmpBasePath, nil, &errbuf); err != nil {
 | 
			
		||||
			return fmt.Errorf("git rebase [%s -> %s]: %s", headRepoPath, tmpBasePath, errbuf.String())
 | 
			
		||||
		}
 | 
			
		||||
		// Checkout base branch again
 | 
			
		||||
		if err := git.NewCommand("checkout", baseBranch).RunInDirPipeline(tmpBasePath, nil, &errbuf); err != nil {
 | 
			
		||||
			return fmt.Errorf("git checkout: %s", errbuf.String())
 | 
			
		||||
		}
 | 
			
		||||
		// Merge fast forward
 | 
			
		||||
		if err := git.NewCommand("merge", "--ff-only", "-q", stagingBranch).RunInDirPipeline(tmpBasePath, nil, &errbuf); err != nil {
 | 
			
		||||
			return fmt.Errorf("git merge --ff-only [%s -> %s]: %s", headRepoPath, tmpBasePath, errbuf.String())
 | 
			
		||||
		}
 | 
			
		||||
		fallthrough
 | 
			
		||||
	case models.MergeStyleRebaseMerge:
 | 
			
		||||
		// Checkout head branch
 | 
			
		||||
		if err := git.NewCommand("checkout", "-b", stagingBranch, trackingBranch).RunInDirPipeline(tmpBasePath, nil, &errbuf); err != nil {
 | 
			
		||||
			return fmt.Errorf("git checkout: %s", errbuf.String())
 | 
			
		||||
		if err := git.NewCommand("checkout", "-b", stagingBranch, trackingBranch).RunInDirPipeline(tmpBasePath, &outbuf, &errbuf); err != nil {
 | 
			
		||||
			log.Error("git checkout base prior to merge post staging rebase [%s:%s -> %s:%s]: %v\n%s\n%s", pr.HeadRepo.FullName(), pr.HeadBranch, pr.BaseRepo.FullName(), pr.BaseBranch, err, outbuf.String(), errbuf.String())
 | 
			
		||||
			return fmt.Errorf("git checkout base prior to merge post staging rebase  [%s:%s -> %s:%s]: %v\n%s\n%s", pr.HeadRepo.FullName(), pr.HeadBranch, pr.BaseRepo.FullName(), pr.BaseBranch, err, outbuf.String(), errbuf.String())
 | 
			
		||||
		}
 | 
			
		||||
		outbuf.Reset()
 | 
			
		||||
		errbuf.Reset()
 | 
			
		||||
 | 
			
		||||
		// Rebase before merging
 | 
			
		||||
		if err := git.NewCommand("rebase", "-q", baseBranch).RunInDirPipeline(tmpBasePath, nil, &errbuf); err != nil {
 | 
			
		||||
			return fmt.Errorf("git rebase [%s -> %s]: %s", headRepoPath, tmpBasePath, errbuf.String())
 | 
			
		||||
		if err := git.NewCommand("rebase", baseBranch).RunInDirPipeline(tmpBasePath, &outbuf, &errbuf); err != nil {
 | 
			
		||||
			// Rebase will leave a REBASE_HEAD file in .git if there is a conflict
 | 
			
		||||
			if _, statErr := os.Stat(filepath.Join(tmpBasePath, ".git", "REBASE_HEAD")); statErr == nil {
 | 
			
		||||
				// The original commit SHA1 that is failing will be in .git/rebase-apply/original-commit
 | 
			
		||||
				commitShaBytes, readErr := ioutil.ReadFile(filepath.Join(tmpBasePath, ".git", "rebase-apply", "original-commit"))
 | 
			
		||||
				if readErr != nil {
 | 
			
		||||
					// Abandon this attempt to handle the error
 | 
			
		||||
					log.Error("git rebase staging on to base [%s:%s -> %s:%s]: %v\n%s\n%s", pr.HeadRepo.FullName(), pr.HeadBranch, pr.BaseRepo.FullName(), pr.BaseBranch, err, outbuf.String(), errbuf.String())
 | 
			
		||||
					return fmt.Errorf("git rebase staging on to base [%s:%s -> %s:%s]: %v\n%s\n%s", pr.HeadRepo.FullName(), pr.HeadBranch, pr.BaseRepo.FullName(), pr.BaseBranch, err, outbuf.String(), errbuf.String())
 | 
			
		||||
				}
 | 
			
		||||
				log.Debug("RebaseConflict at %s [%s:%s -> %s:%s]: %v\n%s\n%s", strings.TrimSpace(string(commitShaBytes)), pr.HeadRepo.FullName(), pr.HeadBranch, pr.BaseRepo.FullName(), pr.BaseBranch, err, outbuf.String(), errbuf.String())
 | 
			
		||||
				return models.ErrRebaseConflicts{
 | 
			
		||||
					Style:     mergeStyle,
 | 
			
		||||
					CommitSHA: strings.TrimSpace(string(commitShaBytes)),
 | 
			
		||||
					StdOut:    outbuf.String(),
 | 
			
		||||
					StdErr:    errbuf.String(),
 | 
			
		||||
					Err:       err,
 | 
			
		||||
				}
 | 
			
		||||
			}
 | 
			
		||||
			log.Error("git rebase staging on to base [%s:%s -> %s:%s]: %v\n%s\n%s", pr.HeadRepo.FullName(), pr.HeadBranch, pr.BaseRepo.FullName(), pr.BaseBranch, err, outbuf.String(), errbuf.String())
 | 
			
		||||
			return fmt.Errorf("git rebase staging on to base [%s:%s -> %s:%s]: %v\n%s\n%s", pr.HeadRepo.FullName(), pr.HeadBranch, pr.BaseRepo.FullName(), pr.BaseBranch, err, outbuf.String(), errbuf.String())
 | 
			
		||||
		}
 | 
			
		||||
		outbuf.Reset()
 | 
			
		||||
		errbuf.Reset()
 | 
			
		||||
 | 
			
		||||
		// Checkout base branch again
 | 
			
		||||
		if err := git.NewCommand("checkout", baseBranch).RunInDirPipeline(tmpBasePath, nil, &errbuf); err != nil {
 | 
			
		||||
			return fmt.Errorf("git checkout: %s", errbuf.String())
 | 
			
		||||
		}
 | 
			
		||||
		// Prepare merge with commit
 | 
			
		||||
		if err := git.NewCommand("merge", "--no-ff", "--no-commit", "-q", stagingBranch).RunInDirPipeline(tmpBasePath, nil, &errbuf); err != nil {
 | 
			
		||||
			return fmt.Errorf("git merge --no-ff [%s -> %s]: %s", headRepoPath, tmpBasePath, errbuf.String())
 | 
			
		||||
		if err := git.NewCommand("checkout", baseBranch).RunInDirPipeline(tmpBasePath, &outbuf, &errbuf); err != nil {
 | 
			
		||||
			log.Error("git checkout base prior to merge post staging rebase [%s:%s -> %s:%s]: %v\n%s\n%s", pr.HeadRepo.FullName(), pr.HeadBranch, pr.BaseRepo.FullName(), pr.BaseBranch, err, outbuf.String(), errbuf.String())
 | 
			
		||||
			return fmt.Errorf("git checkout base prior to merge post staging rebase  [%s:%s -> %s:%s]: %v\n%s\n%s", pr.HeadRepo.FullName(), pr.HeadBranch, pr.BaseRepo.FullName(), pr.BaseBranch, err, outbuf.String(), errbuf.String())
 | 
			
		||||
		}
 | 
			
		||||
		outbuf.Reset()
 | 
			
		||||
		errbuf.Reset()
 | 
			
		||||
 | 
			
		||||
		// Set custom message and author and create merge commit
 | 
			
		||||
		if signArg == "" {
 | 
			
		||||
			if err := git.NewCommand("commit", "-m", message).RunInDirTimeoutEnvPipeline(env, -1, tmpBasePath, nil, &errbuf); err != nil {
 | 
			
		||||
				return fmt.Errorf("git commit [%s]: %v - %s", tmpBasePath, err, errbuf.String())
 | 
			
		||||
			}
 | 
			
		||||
		cmd := git.NewCommand("merge")
 | 
			
		||||
		if mergeStyle == models.MergeStyleRebase {
 | 
			
		||||
			cmd.AddArguments("--ff-only")
 | 
			
		||||
		} else {
 | 
			
		||||
			if err := git.NewCommand("commit", signArg, "-m", message).RunInDirTimeoutEnvPipeline(env, -1, tmpBasePath, nil, &errbuf); err != nil {
 | 
			
		||||
				return fmt.Errorf("git commit [%s]: %v - %s", tmpBasePath, err, errbuf.String())
 | 
			
		||||
			cmd.AddArguments("--no-ff", "--no-commit")
 | 
			
		||||
		}
 | 
			
		||||
		cmd.AddArguments(stagingBranch)
 | 
			
		||||
 | 
			
		||||
		// Prepare merge with commit
 | 
			
		||||
		if err := runMergeCommand(pr, mergeStyle, cmd, tmpBasePath); err != nil {
 | 
			
		||||
			log.Error("Unable to merge staging into base: %v", err)
 | 
			
		||||
			return err
 | 
			
		||||
		}
 | 
			
		||||
		if mergeStyle == models.MergeStyleRebaseMerge {
 | 
			
		||||
			if err := commitAndSignNoAuthor(pr, message, signArg, tmpBasePath, env); err != nil {
 | 
			
		||||
				log.Error("Unable to make final commit: %v", err)
 | 
			
		||||
				return err
 | 
			
		||||
			}
 | 
			
		||||
		}
 | 
			
		||||
 | 
			
		||||
	case models.MergeStyleSquash:
 | 
			
		||||
		// Merge with squash
 | 
			
		||||
		if err := git.NewCommand("merge", "-q", "--squash", trackingBranch).RunInDirPipeline(tmpBasePath, nil, &errbuf); err != nil {
 | 
			
		||||
			return fmt.Errorf("git merge --squash [%s -> %s]: %s", headRepoPath, tmpBasePath, errbuf.String())
 | 
			
		||||
		cmd := git.NewCommand("merge", "--squash", trackingBranch)
 | 
			
		||||
		if err := runMergeCommand(pr, mergeStyle, cmd, tmpBasePath); err != nil {
 | 
			
		||||
			log.Error("Unable to merge --squash tracking into base: %v", err)
 | 
			
		||||
			return err
 | 
			
		||||
		}
 | 
			
		||||
 | 
			
		||||
		sig := pr.Issue.Poster.NewGitSig()
 | 
			
		||||
		if signArg == "" {
 | 
			
		||||
			if err := git.NewCommand("commit", fmt.Sprintf("--author='%s <%s>'", sig.Name, sig.Email), "-m", message).RunInDirTimeoutEnvPipeline(env, -1, tmpBasePath, nil, &errbuf); err != nil {
 | 
			
		||||
				return fmt.Errorf("git commit [%s]: %v - %s", tmpBasePath, err, errbuf.String())
 | 
			
		||||
			if err := git.NewCommand("commit", fmt.Sprintf("--author='%s <%s>'", sig.Name, sig.Email), "-m", message).RunInDirTimeoutEnvPipeline(env, -1, tmpBasePath, &outbuf, &errbuf); err != nil {
 | 
			
		||||
				log.Error("git commit [%s:%s -> %s:%s]: %v\n%s\n%s", pr.HeadRepo.FullName(), pr.HeadBranch, pr.BaseRepo.FullName(), pr.BaseBranch, err, outbuf.String(), errbuf.String())
 | 
			
		||||
				return fmt.Errorf("git commit [%s:%s -> %s:%s]: %v\n%s\n%s", pr.HeadRepo.FullName(), pr.HeadBranch, pr.BaseRepo.FullName(), pr.BaseBranch, err, outbuf.String(), errbuf.String())
 | 
			
		||||
			}
 | 
			
		||||
		} else {
 | 
			
		||||
			if err := git.NewCommand("commit", signArg, fmt.Sprintf("--author='%s <%s>'", sig.Name, sig.Email), "-m", message).RunInDirTimeoutEnvPipeline(env, -1, tmpBasePath, nil, &errbuf); err != nil {
 | 
			
		||||
				return fmt.Errorf("git commit [%s]: %v - %s", tmpBasePath, err, errbuf.String())
 | 
			
		||||
			if err := git.NewCommand("commit", signArg, fmt.Sprintf("--author='%s <%s>'", sig.Name, sig.Email), "-m", message).RunInDirTimeoutEnvPipeline(env, -1, tmpBasePath, &outbuf, &errbuf); err != nil {
 | 
			
		||||
				log.Error("git commit [%s:%s -> %s:%s]: %v\n%s\n%s", pr.HeadRepo.FullName(), pr.HeadBranch, pr.BaseRepo.FullName(), pr.BaseBranch, err, outbuf.String(), errbuf.String())
 | 
			
		||||
				return fmt.Errorf("git commit [%s:%s -> %s:%s]: %v\n%s\n%s", pr.HeadRepo.FullName(), pr.HeadBranch, pr.BaseRepo.FullName(), pr.BaseBranch, err, outbuf.String(), errbuf.String())
 | 
			
		||||
			}
 | 
			
		||||
		}
 | 
			
		||||
		outbuf.Reset()
 | 
			
		||||
		errbuf.Reset()
 | 
			
		||||
	default:
 | 
			
		||||
		return models.ErrInvalidMergeStyle{ID: pr.BaseRepo.ID, Style: mergeStyle}
 | 
			
		||||
	}
 | 
			
		||||
@@ -329,9 +397,19 @@ func Merge(pr *models.PullRequest, doer *models.User, baseGitRepo *git.Repositor
 | 
			
		||||
	)
 | 
			
		||||
 | 
			
		||||
	// Push back to upstream.
 | 
			
		||||
	if err := git.NewCommand("push", "origin", baseBranch+":"+pr.BaseBranch).RunInDirTimeoutEnvPipeline(env, -1, tmpBasePath, nil, &errbuf); err != nil {
 | 
			
		||||
	if err := git.NewCommand("push", "origin", baseBranch+":"+pr.BaseBranch).RunInDirTimeoutEnvPipeline(env, -1, tmpBasePath, &outbuf, &errbuf); err != nil {
 | 
			
		||||
		if strings.Contains(errbuf.String(), "non-fast-forward") {
 | 
			
		||||
			return models.ErrMergePushOutOfDate{
 | 
			
		||||
				Style:  mergeStyle,
 | 
			
		||||
				StdOut: outbuf.String(),
 | 
			
		||||
				StdErr: errbuf.String(),
 | 
			
		||||
				Err:    err,
 | 
			
		||||
			}
 | 
			
		||||
		}
 | 
			
		||||
		return fmt.Errorf("git push: %s", errbuf.String())
 | 
			
		||||
	}
 | 
			
		||||
	outbuf.Reset()
 | 
			
		||||
	errbuf.Reset()
 | 
			
		||||
 | 
			
		||||
	pr.MergedCommitID, err = baseGitRepo.GetBranchCommitID(pr.BaseBranch)
 | 
			
		||||
	if err != nil {
 | 
			
		||||
@@ -364,6 +442,51 @@ func Merge(pr *models.PullRequest, doer *models.User, baseGitRepo *git.Repositor
 | 
			
		||||
	return nil
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
func commitAndSignNoAuthor(pr *models.PullRequest, message, signArg, tmpBasePath string, env []string) error {
 | 
			
		||||
	var outbuf, errbuf strings.Builder
 | 
			
		||||
	if signArg == "" {
 | 
			
		||||
		if err := git.NewCommand("commit", "-m", message).RunInDirTimeoutEnvPipeline(env, -1, tmpBasePath, &outbuf, &errbuf); err != nil {
 | 
			
		||||
			log.Error("git commit [%s:%s -> %s:%s]: %v\n%s\n%s", pr.HeadRepo.FullName(), pr.HeadBranch, pr.BaseRepo.FullName(), pr.BaseBranch, err, outbuf.String(), errbuf.String())
 | 
			
		||||
			return fmt.Errorf("git commit [%s:%s -> %s:%s]: %v\n%s\n%s", pr.HeadRepo.FullName(), pr.HeadBranch, pr.BaseRepo.FullName(), pr.BaseBranch, err, outbuf.String(), errbuf.String())
 | 
			
		||||
		}
 | 
			
		||||
	} else {
 | 
			
		||||
		if err := git.NewCommand("commit", signArg, "-m", message).RunInDirTimeoutEnvPipeline(env, -1, tmpBasePath, &outbuf, &errbuf); err != nil {
 | 
			
		||||
			log.Error("git commit [%s:%s -> %s:%s]: %v\n%s\n%s", pr.HeadRepo.FullName(), pr.HeadBranch, pr.BaseRepo.FullName(), pr.BaseBranch, err, outbuf.String(), errbuf.String())
 | 
			
		||||
			return fmt.Errorf("git commit [%s:%s -> %s:%s]: %v\n%s\n%s", pr.HeadRepo.FullName(), pr.HeadBranch, pr.BaseRepo.FullName(), pr.BaseBranch, err, outbuf.String(), errbuf.String())
 | 
			
		||||
		}
 | 
			
		||||
	}
 | 
			
		||||
	return nil
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
func runMergeCommand(pr *models.PullRequest, mergeStyle models.MergeStyle, cmd *git.Command, tmpBasePath string) error {
 | 
			
		||||
	var outbuf, errbuf strings.Builder
 | 
			
		||||
	if err := cmd.RunInDirPipeline(tmpBasePath, &outbuf, &errbuf); err != nil {
 | 
			
		||||
		// Merge will leave a MERGE_HEAD file in the .git folder if there is a conflict
 | 
			
		||||
		if _, statErr := os.Stat(filepath.Join(tmpBasePath, ".git", "MERGE_HEAD")); statErr == nil {
 | 
			
		||||
			// We have a merge conflict error
 | 
			
		||||
			log.Debug("MergeConflict [%s:%s -> %s:%s]: %v\n%s\n%s", pr.HeadRepo.FullName(), pr.HeadBranch, pr.BaseRepo.FullName(), pr.BaseBranch, err, outbuf.String(), errbuf.String())
 | 
			
		||||
			return models.ErrMergeConflicts{
 | 
			
		||||
				Style:  mergeStyle,
 | 
			
		||||
				StdOut: outbuf.String(),
 | 
			
		||||
				StdErr: errbuf.String(),
 | 
			
		||||
				Err:    err,
 | 
			
		||||
			}
 | 
			
		||||
		} else if strings.Contains(errbuf.String(), "refusing to merge unrelated histories") {
 | 
			
		||||
			log.Debug("MergeUnrelatedHistories [%s:%s -> %s:%s]: %v\n%s\n%s", pr.HeadRepo.FullName(), pr.HeadBranch, pr.BaseRepo.FullName(), pr.BaseBranch, err, outbuf.String(), errbuf.String())
 | 
			
		||||
			return models.ErrMergeUnrelatedHistories{
 | 
			
		||||
				Style:  mergeStyle,
 | 
			
		||||
				StdOut: outbuf.String(),
 | 
			
		||||
				StdErr: errbuf.String(),
 | 
			
		||||
				Err:    err,
 | 
			
		||||
			}
 | 
			
		||||
		}
 | 
			
		||||
		log.Error("git merge [%s:%s -> %s:%s]: %v\n%s\n%s", pr.HeadRepo.FullName(), pr.HeadBranch, pr.BaseRepo.FullName(), pr.BaseBranch, err, outbuf.String(), errbuf.String())
 | 
			
		||||
		return fmt.Errorf("git merge [%s:%s -> %s:%s]: %v\n%s\n%s", pr.HeadRepo.FullName(), pr.HeadBranch, pr.BaseRepo.FullName(), pr.BaseBranch, err, outbuf.String(), errbuf.String())
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	return nil
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
var escapedSymbols = regexp.MustCompile(`([*[?! \\])`)
 | 
			
		||||
 | 
			
		||||
func getDiffTree(repoPath, baseBranch, headBranch string) (string, error) {
 | 
			
		||||
 
 | 
			
		||||
		Reference in New Issue
	
	Block a user