From 5e759b60cca3cd8484a6235fcc9120d18e8cd455 Mon Sep 17 00:00:00 2001 From: zeripath Date: Sat, 12 Oct 2019 01:13:27 +0100 Subject: [PATCH] Restore functionality for early gits (#7775) * Change tests to make it possible to run TestGit with 1.7.2 * Make merge run on 1.7.2 * Fix tracking and staging branch name problem * Ensure that git 1.7.2 works on tests * ensure that there is no chance for conflicts * Fix-up missing merge issues * Final rm * Ensure LFS filters run on the tests * Do not sign commits from temp repo * Restore tracking fetch change * Apply suggestions from code review * Update modules/repofiles/temp_repo.go --- .../git_helper_for_declarative_test.go | 31 ++++++++ integrations/git_test.go | 62 +++++++++++---- integrations/lfs_getobject_test.go | 5 ++ models/repo.go | 2 +- modules/git/repo_branch.go | 2 +- modules/git/repo_tree.go | 22 ++++-- modules/process/manager.go | 14 ++++ modules/repofiles/temp_repo.go | 38 ++++++++- modules/repofiles/update.go | 25 +++--- modules/repofiles/upload.go | 11 ++- services/mirror/mirror.go | 2 +- services/pull/merge.go | 78 +++++++++++++------ 12 files changed, 226 insertions(+), 66 deletions(-) diff --git a/integrations/git_helper_for_declarative_test.go b/integrations/git_helper_for_declarative_test.go index 628611d2d..294f0bc5f 100644 --- a/integrations/git_helper_for_declarative_test.go +++ b/integrations/git_helper_for_declarative_test.go @@ -12,7 +12,9 @@ import ( "net/http" "net/url" "os" + "path" "path/filepath" + "strings" "testing" "time" @@ -37,7 +39,12 @@ func withKeyFile(t *testing.T, keyname string, callback func(string)) { err = ssh.GenKeyPair(keyFile) assert.NoError(t, err) + err = ioutil.WriteFile(path.Join(tmpDir, "ssh"), []byte("#!/bin/bash\n"+ + "ssh -o \"UserKnownHostsFile=/dev/null\" -o \"StrictHostKeyChecking=no\" -o \"IdentitiesOnly=yes\" -i \""+keyFile+"\" \"$@\""), 0700) + assert.NoError(t, err) + //Setup ssh wrapper + os.Setenv("GIT_SSH", path.Join(tmpDir, "ssh")) os.Setenv("GIT_SSH_COMMAND", "ssh -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -o IdentitiesOnly=yes -i \""+keyFile+"\"") os.Setenv("GIT_SSH_VARIANT", "ssh") @@ -54,6 +61,24 @@ func createSSHUrl(gitPath string, u *url.URL) *url.URL { return &u2 } +func allowLFSFilters() []string { + // Now here we should explicitly allow lfs filters to run + globalArgs := git.GlobalCommandArgs + filteredLFSGlobalArgs := make([]string, len(git.GlobalCommandArgs)) + j := 0 + for _, arg := range git.GlobalCommandArgs { + if strings.Contains(arg, "lfs") { + j-- + } else { + filteredLFSGlobalArgs[j] = arg + j++ + } + } + filteredLFSGlobalArgs = filteredLFSGlobalArgs[:j] + git.GlobalCommandArgs = filteredLFSGlobalArgs + return globalArgs +} + func onGiteaRun(t *testing.T, callback func(*testing.T, *url.URL)) { prepareTestEnv(t, 1) s := http.Server{ @@ -79,7 +104,9 @@ func onGiteaRun(t *testing.T, callback func(*testing.T, *url.URL)) { func doGitClone(dstLocalPath string, u *url.URL) func(*testing.T) { return func(t *testing.T) { + oldGlobals := allowLFSFilters() assert.NoError(t, git.Clone(u.String(), dstLocalPath, git.CloneRepoOptions{})) + git.GlobalCommandArgs = oldGlobals assert.True(t, com.IsExist(filepath.Join(dstLocalPath, "README.md"))) } } @@ -140,7 +167,9 @@ func doGitCreateBranch(dstPath, branch string) func(*testing.T) { func doGitCheckoutBranch(dstPath string, args ...string) func(*testing.T) { return func(t *testing.T) { + oldGlobals := allowLFSFilters() _, err := git.NewCommand(append([]string{"checkout"}, args...)...).RunInDir(dstPath) + git.GlobalCommandArgs = oldGlobals assert.NoError(t, err) } } @@ -154,7 +183,9 @@ func doGitMerge(dstPath string, args ...string) func(*testing.T) { func doGitPull(dstPath string, args ...string) func(*testing.T) { return func(t *testing.T) { + oldGlobals := allowLFSFilters() _, err := git.NewCommand(append([]string{"pull"}, args...)...).RunInDir(dstPath) + git.GlobalCommandArgs = oldGlobals assert.NoError(t, err) } } diff --git a/integrations/git_test.go b/integrations/git_test.go index 8578fb86d..dbcc26522 100644 --- a/integrations/git_test.go +++ b/integrations/git_test.go @@ -19,6 +19,7 @@ import ( "code.gitea.io/gitea/models" "code.gitea.io/gitea/modules/git" + "code.gitea.io/gitea/modules/setting" api "code.gitea.io/gitea/modules/structs" "github.com/stretchr/testify/assert" @@ -135,6 +136,11 @@ func standardCommitAndPushTest(t *testing.T, dstPath string) (little, big string func lfsCommitAndPushTest(t *testing.T, dstPath string) (littleLFS, bigLFS string) { t.Run("LFS", func(t *testing.T) { PrintCurrentTest(t) + setting.CheckLFSVersion() + if !setting.LFS.StartServer { + t.Skip() + return + } prefix := "lfs-data-file-" _, err := git.NewCommand("lfs").AddArguments("install").RunInDir(dstPath) assert.NoError(t, err) @@ -142,6 +148,21 @@ func lfsCommitAndPushTest(t *testing.T, dstPath string) (littleLFS, bigLFS strin assert.NoError(t, err) err = git.AddChanges(dstPath, false, ".gitattributes") assert.NoError(t, err) + oldGlobals := allowLFSFilters() + err = git.CommitChanges(dstPath, git.CommitChangesOptions{ + Committer: &git.Signature{ + Email: "user2@example.com", + Name: "User Two", + When: time.Now(), + }, + Author: &git.Signature{ + Email: "user2@example.com", + Name: "User Two", + When: time.Now(), + }, + Message: fmt.Sprintf("Testing commit @ %v", time.Now()), + }) + git.GlobalCommandArgs = oldGlobals littleLFS, bigLFS = commitAndPushTest(t, dstPath, prefix) @@ -185,20 +206,25 @@ func rawTest(t *testing.T, ctx *APITestContext, little, big, littleLFS, bigLFS s resp := session.MakeRequest(t, req, http.StatusOK) assert.Equal(t, littleSize, resp.Body.Len()) - req = NewRequest(t, "GET", path.Join("/", username, reponame, "/raw/branch/master/", littleLFS)) - resp = session.MakeRequest(t, req, http.StatusOK) - assert.NotEqual(t, littleSize, resp.Body.Len()) - assert.Contains(t, resp.Body.String(), models.LFSMetaFileIdentifier) + setting.CheckLFSVersion() + if setting.LFS.StartServer { + req = NewRequest(t, "GET", path.Join("/", username, reponame, "/raw/branch/master/", littleLFS)) + resp = session.MakeRequest(t, req, http.StatusOK) + assert.NotEqual(t, littleSize, resp.Body.Len()) + assert.Contains(t, resp.Body.String(), models.LFSMetaFileIdentifier) + } if !testing.Short() { req = NewRequest(t, "GET", path.Join("/", username, reponame, "/raw/branch/master/", big)) resp = session.MakeRequest(t, req, http.StatusOK) assert.Equal(t, bigSize, resp.Body.Len()) - req = NewRequest(t, "GET", path.Join("/", username, reponame, "/raw/branch/master/", bigLFS)) - resp = session.MakeRequest(t, req, http.StatusOK) - assert.NotEqual(t, bigSize, resp.Body.Len()) - assert.Contains(t, resp.Body.String(), models.LFSMetaFileIdentifier) + if setting.LFS.StartServer { + req = NewRequest(t, "GET", path.Join("/", username, reponame, "/raw/branch/master/", bigLFS)) + resp = session.MakeRequest(t, req, http.StatusOK) + assert.NotEqual(t, bigSize, resp.Body.Len()) + assert.Contains(t, resp.Body.String(), models.LFSMetaFileIdentifier) + } } }) } @@ -217,18 +243,23 @@ func mediaTest(t *testing.T, ctx *APITestContext, little, big, littleLFS, bigLFS resp := session.MakeRequestNilResponseRecorder(t, req, http.StatusOK) assert.Equal(t, littleSize, resp.Length) - req = NewRequest(t, "GET", path.Join("/", username, reponame, "/media/branch/master/", littleLFS)) - resp = session.MakeRequestNilResponseRecorder(t, req, http.StatusOK) - assert.Equal(t, littleSize, resp.Length) + setting.CheckLFSVersion() + if setting.LFS.StartServer { + req = NewRequest(t, "GET", path.Join("/", username, reponame, "/media/branch/master/", littleLFS)) + resp = session.MakeRequestNilResponseRecorder(t, req, http.StatusOK) + assert.Equal(t, littleSize, resp.Length) + } if !testing.Short() { req = NewRequest(t, "GET", path.Join("/", username, reponame, "/media/branch/master/", big)) resp = session.MakeRequestNilResponseRecorder(t, req, http.StatusOK) assert.Equal(t, bigSize, resp.Length) - req = NewRequest(t, "GET", path.Join("/", username, reponame, "/media/branch/master/", bigLFS)) - resp = session.MakeRequestNilResponseRecorder(t, req, http.StatusOK) - assert.Equal(t, bigSize, resp.Length) + if setting.LFS.StartServer { + req = NewRequest(t, "GET", path.Join("/", username, reponame, "/media/branch/master/", bigLFS)) + resp = session.MakeRequestNilResponseRecorder(t, req, http.StatusOK) + assert.Equal(t, bigSize, resp.Length) + } } }) } @@ -274,6 +305,8 @@ func generateCommitWithNewData(size int, repoPath, email, fullName, prefix strin } //Commit + // Now here we should explicitly allow lfs filters to run + oldGlobals := allowLFSFilters() err = git.AddChanges(repoPath, false, filepath.Base(tmpFile.Name())) if err != nil { return "", err @@ -291,6 +324,7 @@ func generateCommitWithNewData(size int, repoPath, email, fullName, prefix strin }, Message: fmt.Sprintf("Testing commit @ %v", time.Now()), }) + git.GlobalCommandArgs = oldGlobals return filepath.Base(tmpFile.Name()), err } diff --git a/integrations/lfs_getobject_test.go b/integrations/lfs_getobject_test.go index bb269d5ee..373fffa44 100644 --- a/integrations/lfs_getobject_test.go +++ b/integrations/lfs_getobject_test.go @@ -58,6 +58,11 @@ func storeObjectInRepo(t *testing.T, repositoryID int64, content *[]byte) string func doLfs(t *testing.T, content *[]byte, expectGzip bool) { prepareTestEnv(t) + setting.CheckLFSVersion() + if !setting.LFS.StartServer { + t.Skip() + return + } repo, err := models.GetRepositoryByOwnerAndName("user2", "repo1") assert.NoError(t, err) oid := storeObjectInRepo(t, repo.ID, content) diff --git a/models/repo.go b/models/repo.go index 50402c8e1..8db527477 100644 --- a/models/repo.go +++ b/models/repo.go @@ -1093,7 +1093,7 @@ func CleanUpMigrateInfo(repo *Repository) (*Repository, error) { } } - _, err := git.NewCommand("remote", "remove", "origin").RunInDir(repoPath) + _, err := git.NewCommand("remote", "rm", "origin").RunInDir(repoPath) if err != nil && !strings.HasPrefix(err.Error(), "exit status 128 - fatal: No such remote ") { return repo, fmt.Errorf("CleanUpMigrateInfo: %v", err) } diff --git a/modules/git/repo_branch.go b/modules/git/repo_branch.go index 9209f4a76..3e1261d29 100644 --- a/modules/git/repo_branch.go +++ b/modules/git/repo_branch.go @@ -165,7 +165,7 @@ func (repo *Repository) AddRemote(name, url string, fetch bool) error { // RemoveRemote removes a remote from repository. func (repo *Repository) RemoveRemote(name string) error { - _, err := NewCommand("remote", "remove", name).RunInDir(repo.Path) + _, err := NewCommand("remote", "rm", name).RunInDir(repo.Path) return err } diff --git a/modules/git/repo_tree.go b/modules/git/repo_tree.go index b31e4330c..f5262ba81 100644 --- a/modules/git/repo_tree.go +++ b/modules/git/repo_tree.go @@ -6,10 +6,13 @@ package git import ( + "bytes" "fmt" "os" "strings" "time" + + "github.com/mcuadros/go-version" ) func (repo *Repository) getTree(id SHA1) (*Tree, error) { @@ -61,6 +64,11 @@ type CommitTreeOpts struct { // CommitTree creates a commit from a given tree id for the user with provided message func (repo *Repository) CommitTree(sig *Signature, tree *Tree, opts CommitTreeOpts) (SHA1, error) { + binVersion, err := BinVersion() + if err != nil { + return SHA1{}, err + } + commitTimeStr := time.Now().Format(time.RFC3339) // Because this may call hooks we should pass in the environment @@ -78,20 +86,24 @@ func (repo *Repository) CommitTree(sig *Signature, tree *Tree, opts CommitTreeOp cmd.AddArguments("-p", parent) } - cmd.AddArguments("-m", opts.Message) + messageBytes := new(bytes.Buffer) + _, _ = messageBytes.WriteString(opts.Message) + _, _ = messageBytes.WriteString("\n") if opts.KeyID != "" { cmd.AddArguments(fmt.Sprintf("-S%s", opts.KeyID)) } - if opts.NoGPGSign { + if version.Compare(binVersion, "2.0.0", ">=") && opts.NoGPGSign { cmd.AddArguments("--no-gpg-sign") } - res, err := cmd.RunInDirWithEnv(repo.Path, env) + stdout := new(bytes.Buffer) + stderr := new(bytes.Buffer) + err = cmd.RunInDirTimeoutEnvFullPipeline(env, -1, repo.Path, stdout, stderr, messageBytes) if err != nil { - return SHA1{}, err + return SHA1{}, concatenateError(err, stderr.String()) } - return NewIDFromString(strings.TrimSpace(res)) + return NewIDFromString(strings.TrimSpace(stdout.String())) } diff --git a/modules/process/manager.go b/modules/process/manager.go index 9ac3af86f..3e77c0a6a 100644 --- a/modules/process/manager.go +++ b/modules/process/manager.go @@ -1,4 +1,5 @@ // Copyright 2014 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. @@ -9,6 +10,7 @@ import ( "context" "errors" "fmt" + "io" "os/exec" "sync" "time" @@ -93,6 +95,14 @@ func (pm *Manager) ExecDir(timeout time.Duration, dir, desc, cmdName string, arg // Returns its complete stdout and stderr // outputs and an error, if any (including timeout) func (pm *Manager) ExecDirEnv(timeout time.Duration, dir, desc string, env []string, cmdName string, args ...string) (string, string, error) { + return pm.ExecDirEnvStdIn(timeout, dir, desc, env, nil, cmdName, args...) +} + +// ExecDirEnvStdIn runs a command in given path and environment variables with provided stdIN, and waits for its completion +// up to the given timeout (or DefaultTimeout if -1 is given). +// Returns its complete stdout and stderr +// outputs and an error, if any (including timeout) +func (pm *Manager) ExecDirEnvStdIn(timeout time.Duration, dir, desc string, env []string, stdIn io.Reader, cmdName string, args ...string) (string, string, error) { if timeout == -1 { timeout = 60 * time.Second } @@ -108,6 +118,10 @@ func (pm *Manager) ExecDirEnv(timeout time.Duration, dir, desc string, env []str cmd.Env = env cmd.Stdout = stdOut cmd.Stderr = stdErr + if stdIn != nil { + cmd.Stdin = stdIn + } + if err := cmd.Start(); err != nil { return "", "", err } diff --git a/modules/repofiles/temp_repo.go b/modules/repofiles/temp_repo.go index f791c3cb9..4a50e6419 100644 --- a/modules/repofiles/temp_repo.go +++ b/modules/repofiles/temp_repo.go @@ -21,6 +21,8 @@ import ( "code.gitea.io/gitea/modules/process" "code.gitea.io/gitea/modules/setting" "code.gitea.io/gitea/services/gitdiff" + + "github.com/mcuadros/go-version" ) // TemporaryUploadRepository is a type to wrap our upload repositories as a shallow clone @@ -254,6 +256,11 @@ func (t *TemporaryUploadRepository) CommitTree(author, committer *models.User, t authorSig := author.NewGitSig() committerSig := committer.NewGitSig() + binVersion, err := git.BinVersion() + if err != nil { + return "", fmt.Errorf("Unable to get git version: %v", err) + } + // FIXME: Should we add SSH_ORIGINAL_COMMAND to this // Because this may call hooks we should pass in the environment env := append(os.Environ(), @@ -264,11 +271,21 @@ func (t *TemporaryUploadRepository) CommitTree(author, committer *models.User, t "GIT_COMMITTER_EMAIL="+committerSig.Email, "GIT_COMMITTER_DATE="+commitTimeStr, ) - commitHash, stderr, err := process.GetManager().ExecDirEnv(5*time.Minute, + messageBytes := new(bytes.Buffer) + _, _ = messageBytes.WriteString(message) + _, _ = messageBytes.WriteString("\n") + + args := []string{"commit-tree", treeHash, "-p", "HEAD"} + if version.Compare(binVersion, "2.0.0", ">=") { + args = append(args, "--no-gpg-sign") + } + + commitHash, stderr, err := process.GetManager().ExecDirEnvStdIn(5*time.Minute, t.basePath, fmt.Sprintf("commitTree (git commit-tree): %s", t.basePath), env, - git.GitExecutable, "commit-tree", treeHash, "-p", "HEAD", "-m", message) + messageBytes, + git.GitExecutable, args...) if err != nil { return "", fmt.Errorf("git commit-tree: %s", stderr) } @@ -328,6 +345,12 @@ func (t *TemporaryUploadRepository) DiffIndex() (diff *gitdiff.Diff, err error) // CheckAttribute checks the given attribute of the provided files func (t *TemporaryUploadRepository) CheckAttribute(attribute string, args ...string) (map[string]map[string]string, error) { + binVersion, err := git.BinVersion() + if err != nil { + log.Error("Error retrieving git version: %v", err) + return nil, err + } + stdOut := new(bytes.Buffer) stdErr := new(bytes.Buffer) @@ -335,7 +358,14 @@ func (t *TemporaryUploadRepository) CheckAttribute(attribute string, args ...str ctx, cancel := context.WithTimeout(context.Background(), timeout) defer cancel() - cmdArgs := []string{"check-attr", "-z", attribute, "--cached", "--"} + cmdArgs := []string{"check-attr", "-z", attribute} + + // git check-attr --cached first appears in git 1.7.8 + if version.Compare(binVersion, "1.7.8", ">=") { + cmdArgs = append(cmdArgs, "--cached") + } + cmdArgs = append(cmdArgs, "--") + for _, arg := range args { if arg != "" { cmdArgs = append(cmdArgs, arg) @@ -353,7 +383,7 @@ func (t *TemporaryUploadRepository) CheckAttribute(attribute string, args ...str } pid := process.GetManager().Add(desc, cmd) - err := cmd.Wait() + err = cmd.Wait() process.GetManager().Remove(pid) if err != nil { diff --git a/modules/repofiles/update.go b/modules/repofiles/update.go index ee1b16bce..1a1fe6c38 100644 --- a/modules/repofiles/update.go +++ b/modules/repofiles/update.go @@ -313,12 +313,6 @@ func CreateOrUpdateRepoFile(repo *models.Repository, doer *models.User, opts *Up } } - // Check there is no way this can return multiple infos - filename2attribute2info, err := t.CheckAttribute("filter", treePath) - if err != nil { - return nil, err - } - content := opts.Content if bom { content = string(charset.UTF8BOM) + content @@ -341,16 +335,23 @@ func CreateOrUpdateRepoFile(repo *models.Repository, doer *models.User, opts *Up opts.Content = content var lfsMetaObject *models.LFSMetaObject - if setting.LFS.StartServer && filename2attribute2info[treePath] != nil && filename2attribute2info[treePath]["filter"] == "lfs" { - // OK so we are supposed to LFS this data! - oid, err := models.GenerateLFSOid(strings.NewReader(opts.Content)) + if setting.LFS.StartServer { + // Check there is no way this can return multiple infos + filename2attribute2info, err := t.CheckAttribute("filter", treePath) if err != nil { return nil, err } - lfsMetaObject = &models.LFSMetaObject{Oid: oid, Size: int64(len(opts.Content)), RepositoryID: repo.ID} - content = lfsMetaObject.Pointer() - } + if filename2attribute2info[treePath] != nil && filename2attribute2info[treePath]["filter"] == "lfs" { + // OK so we are supposed to LFS this data! + oid, err := models.GenerateLFSOid(strings.NewReader(opts.Content)) + if err != nil { + return nil, err + } + lfsMetaObject = &models.LFSMetaObject{Oid: oid, Size: int64(len(opts.Content)), RepositoryID: repo.ID} + content = lfsMetaObject.Pointer() + } + } // Add the object to the database objectHash, err := t.HashObject(strings.NewReader(content)) if err != nil { diff --git a/modules/repofiles/upload.go b/modules/repofiles/upload.go index f2ffec7eb..202e66b89 100644 --- a/modules/repofiles/upload.go +++ b/modules/repofiles/upload.go @@ -74,9 +74,12 @@ func UploadRepoFiles(repo *models.Repository, doer *models.User, opts *UploadRep infos[i] = uploadInfo{upload: upload} } - filename2attribute2info, err := t.CheckAttribute("filter", names...) - if err != nil { - return err + var filename2attribute2info map[string]map[string]string + if setting.LFS.StartServer { + filename2attribute2info, err = t.CheckAttribute("filter", names...) + if err != nil { + return err + } } // Copy uploaded files into repository. @@ -88,7 +91,7 @@ func UploadRepoFiles(repo *models.Repository, doer *models.User, opts *UploadRep defer file.Close() var objectHash string - if filename2attribute2info[uploadInfo.upload.Name] != nil && filename2attribute2info[uploadInfo.upload.Name]["filter"] == "lfs" { + if setting.LFS.StartServer && filename2attribute2info[uploadInfo.upload.Name] != nil && filename2attribute2info[uploadInfo.upload.Name]["filter"] == "lfs" { // Handle LFS // FIXME: Inefficient! this should probably happen in models.Upload oid, err := models.GenerateLFSOid(file) diff --git a/services/mirror/mirror.go b/services/mirror/mirror.go index 3339f7232..7bfc5fd4d 100644 --- a/services/mirror/mirror.go +++ b/services/mirror/mirror.go @@ -91,7 +91,7 @@ func AddressNoCredentials(m *models.Mirror) string { func SaveAddress(m *models.Mirror, addr string) error { repoPath := m.Repo.RepoPath() // Remove old origin - _, err := git.NewCommand("remote", "remove", "origin").RunInDir(repoPath) + _, err := git.NewCommand("remote", "rm", "origin").RunInDir(repoPath) if err != nil && !strings.HasPrefix(err.Error(), "exit status 128 - fatal: No such remote ") { return err } diff --git a/services/pull/merge.go b/services/pull/merge.go index 6150c1518..e83784f31 100644 --- a/services/pull/merge.go +++ b/services/pull/merge.go @@ -11,7 +11,6 @@ import ( "fmt" "io/ioutil" "os" - "path" "path/filepath" "strings" @@ -22,6 +21,8 @@ import ( "code.gitea.io/gitea/modules/setting" api "code.gitea.io/gitea/modules/structs" "code.gitea.io/gitea/modules/timeutil" + + "github.com/mcuadros/go-version" ) // Merge merges pull request to base repository. @@ -66,20 +67,17 @@ func Merge(pr *models.PullRequest, doer *models.User, baseGitRepo *git.Repositor headRepoPath := models.RepoPath(pr.HeadUserName, pr.HeadRepo.Name) - if err := git.Clone(baseGitRepo.Path, tmpBasePath, git.CloneRepoOptions{ - Shared: true, - NoCheckout: true, - Branch: pr.BaseBranch, - }); err != nil { - return fmt.Errorf("git clone: %v", err) + if err := git.InitRepository(tmpBasePath, false); err != nil { + return fmt.Errorf("git init: %v", err) } remoteRepoName := "head_repo" + baseBranch := "base" // Add head repo remote. addCacheRepo := func(staging, cache string) error { p := filepath.Join(staging, ".git", "objects", "info", "alternates") - f, err := os.OpenFile(p, os.O_APPEND|os.O_WRONLY, 0600) + f, err := os.OpenFile(p, os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0600) if err != nil { return err } @@ -91,25 +89,41 @@ func Merge(pr *models.PullRequest, doer *models.User, baseGitRepo *git.Repositor return nil } - if err := addCacheRepo(tmpBasePath, headRepoPath); err != nil { + if err := addCacheRepo(tmpBasePath, baseGitRepo.Path); err != nil { return fmt.Errorf("addCacheRepo [%s -> %s]: %v", headRepoPath, tmpBasePath, err) } var errbuf strings.Builder + if err := git.NewCommand("remote", "add", "-t", pr.BaseBranch, "-m", pr.BaseBranch, "origin", baseGitRepo.Path).RunInDirPipeline(tmpBasePath, nil, &errbuf); err != nil { + return fmt.Errorf("git remote add [%s -> %s]: %s", baseGitRepo.Path, tmpBasePath, errbuf.String()) + } + + if err := git.NewCommand("fetch", "origin", "--no-tags", pr.BaseBranch+":"+baseBranch, pr.BaseBranch+":original_"+baseBranch).RunInDirPipeline(tmpBasePath, nil, &errbuf); err != nil { + return fmt.Errorf("git fetch [%s -> %s]: %s", headRepoPath, tmpBasePath, errbuf.String()) + } + + if err := git.NewCommand("symbolic-ref", "HEAD", git.BranchPrefix+baseBranch).RunInDirPipeline(tmpBasePath, nil, &errbuf); err != nil { + return fmt.Errorf("git symbolic-ref HEAD base [%s]: %s", tmpBasePath, errbuf.String()) + } + + if err := addCacheRepo(tmpBasePath, headRepoPath); err != nil { + return fmt.Errorf("addCacheRepo [%s -> %s]: %v", headRepoPath, tmpBasePath, err) + } + if err := git.NewCommand("remote", "add", remoteRepoName, headRepoPath).RunInDirPipeline(tmpBasePath, nil, &errbuf); err != nil { return fmt.Errorf("git remote add [%s -> %s]: %s", headRepoPath, tmpBasePath, errbuf.String()) } + trackingBranch := "tracking" // Fetch head branch - if err := git.NewCommand("fetch", remoteRepoName, fmt.Sprintf("%s:refs/remotes/%s/%s", pr.HeadBranch, remoteRepoName, pr.HeadBranch)).RunInDirPipeline(tmpBasePath, nil, &errbuf); err != nil { + if err := git.NewCommand("fetch", "--no-tags", remoteRepoName, pr.HeadBranch+":"+trackingBranch).RunInDirPipeline(tmpBasePath, nil, &errbuf); err != nil { return fmt.Errorf("git fetch [%s -> %s]: %s", headRepoPath, tmpBasePath, errbuf.String()) } - trackingBranch := path.Join(remoteRepoName, pr.HeadBranch) - stagingBranch := fmt.Sprintf("%s_%s", remoteRepoName, pr.HeadBranch) + stagingBranch := "staging" // Enable sparse-checkout - sparseCheckoutList, err := getDiffTree(tmpBasePath, pr.BaseBranch, trackingBranch) + sparseCheckoutList, err := getDiffTree(tmpBasePath, baseBranch, trackingBranch) if err != nil { return fmt.Errorf("getDiffTree: %v", err) } @@ -123,21 +137,37 @@ func Merge(pr *models.PullRequest, doer *models.User, baseGitRepo *git.Repositor return fmt.Errorf("Writing sparse-checkout file to %s: %v", sparseCheckoutListPath, err) } + gitConfigCommand := func() func() *git.Command { + binVersion, err := git.BinVersion() + if err != nil { + log.Fatal("Error retrieving git version: %v", err) + } + + if version.Compare(binVersion, "1.8.0", ">=") { + return func() *git.Command { + return git.NewCommand("config", "--local") + } + } + return func() *git.Command { + return git.NewCommand("config") + } + }() + // Switch off LFS process (set required, clean and smudge here also) - if err := git.NewCommand("config", "--local", "filter.lfs.process", "").RunInDirPipeline(tmpBasePath, nil, &errbuf); err != nil { + if err := gitConfigCommand().AddArguments("filter.lfs.process", "").RunInDirPipeline(tmpBasePath, nil, &errbuf); err != nil { return fmt.Errorf("git config [filter.lfs.process -> <> ]: %v", errbuf.String()) } - if err := git.NewCommand("config", "--local", "filter.lfs.required", "false").RunInDirPipeline(tmpBasePath, nil, &errbuf); err != nil { + if err := gitConfigCommand().AddArguments("filter.lfs.required", "false").RunInDirPipeline(tmpBasePath, nil, &errbuf); err != nil { return fmt.Errorf("git config [filter.lfs.required -> ]: %v", errbuf.String()) } - if err := git.NewCommand("config", "--local", "filter.lfs.clean", "").RunInDirPipeline(tmpBasePath, nil, &errbuf); err != nil { + if err := gitConfigCommand().AddArguments("filter.lfs.clean", "").RunInDirPipeline(tmpBasePath, nil, &errbuf); err != nil { return fmt.Errorf("git config [filter.lfs.clean -> <> ]: %v", errbuf.String()) } - if err := git.NewCommand("config", "--local", "filter.lfs.smudge", "").RunInDirPipeline(tmpBasePath, nil, &errbuf); err != nil { + if err := gitConfigCommand().AddArguments("filter.lfs.smudge", "").RunInDirPipeline(tmpBasePath, nil, &errbuf); err != nil { return fmt.Errorf("git config [filter.lfs.smudge -> <> ]: %v", errbuf.String()) } - if err := git.NewCommand("config", "--local", "core.sparseCheckout", "true").RunInDirPipeline(tmpBasePath, nil, &errbuf); err != nil { + if err := gitConfigCommand().AddArguments("core.sparseCheckout", "true").RunInDirPipeline(tmpBasePath, nil, &errbuf); err != nil { return fmt.Errorf("git config [core.sparsecheckout -> true]: %v", errbuf.String()) } @@ -163,11 +193,11 @@ func Merge(pr *models.PullRequest, doer *models.User, baseGitRepo *git.Repositor return fmt.Errorf("git checkout: %s", errbuf.String()) } // Rebase before merging - if err := git.NewCommand("rebase", "-q", pr.BaseBranch).RunInDirPipeline(tmpBasePath, nil, &errbuf); err != nil { + 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", pr.BaseBranch).RunInDirPipeline(tmpBasePath, nil, &errbuf); err != nil { + if err := git.NewCommand("checkout", baseBranch).RunInDirPipeline(tmpBasePath, nil, &errbuf); err != nil { return fmt.Errorf("git checkout: %s", errbuf.String()) } // Merge fast forward @@ -180,11 +210,11 @@ func Merge(pr *models.PullRequest, doer *models.User, baseGitRepo *git.Repositor return fmt.Errorf("git checkout: %s", errbuf.String()) } // Rebase before merging - if err := git.NewCommand("rebase", "-q", pr.BaseBranch).RunInDirPipeline(tmpBasePath, nil, &errbuf); err != nil { + 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", pr.BaseBranch).RunInDirPipeline(tmpBasePath, nil, &errbuf); err != nil { + if err := git.NewCommand("checkout", baseBranch).RunInDirPipeline(tmpBasePath, nil, &errbuf); err != nil { return fmt.Errorf("git checkout: %s", errbuf.String()) } // Prepare merge with commit @@ -216,7 +246,7 @@ func Merge(pr *models.PullRequest, doer *models.User, baseGitRepo *git.Repositor if err != nil { return fmt.Errorf("Failed to get full commit id for HEAD: %v", err) } - mergeBaseSHA, err := git.GetFullCommitID(tmpBasePath, "origin/"+pr.BaseBranch) + mergeBaseSHA, err := git.GetFullCommitID(tmpBasePath, "original_"+baseBranch) if err != nil { return fmt.Errorf("Failed to get full commit id for origin/%s: %v", pr.BaseBranch, err) } @@ -249,7 +279,7 @@ func Merge(pr *models.PullRequest, doer *models.User, baseGitRepo *git.Repositor ) // Push back to upstream. - if err := git.NewCommand("push", "origin", pr.BaseBranch).RunInDirTimeoutEnvPipeline(env, -1, tmpBasePath, nil, &errbuf); err != nil { + if err := git.NewCommand("push", "origin", baseBranch+":"+pr.BaseBranch).RunInDirTimeoutEnvPipeline(env, -1, tmpBasePath, nil, &errbuf); err != nil { return fmt.Errorf("git push: %s", errbuf.String()) }