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Remove SavePatch and generate patches on the fly (#9302)

* Save patches to temporary files

* Remove SavePatch and generate patches on the fly

* Use ioutil.TempDir

* fixup! Use ioutil.TempDir

* fixup! fixup! Use ioutil.TempDir

* RemoveAll LocalCopyPath() in initIntergrationTest

* Default to status checking on PR creation

* Remove unnecessary set to StatusChecking

* Protect against unable to load repo

* Handle conflicts

* Restore original conflict setting

* In TestPullRequests update status to StatusChecking before running TestPatch
lunny/display_deleted_branch2
zeripath 3 years ago
committed by Antoine GIRARD
parent
commit
74179d1b5e
  1. 2
      integrations/integration_test.go
  2. 18
      models/helper_directory.go
  3. 4
      models/issue_xref_test.go
  4. 187
      models/pull.go
  5. 2
      models/pull_test.go
  6. 36
      models/repo.go
  7. 28
      modules/git/repo_compare.go
  8. 4
      modules/git/repo_compare_test.go
  9. 8
      routers/api/v1/repo/pull.go
  10. 5
      routers/repo/issue.go
  11. 71
      routers/repo/pull.go
  12. 10
      services/pull/check.go
  13. 78
      services/pull/merge.go
  14. 216
      services/pull/patch.go
  15. 13
      services/pull/pull.go
  16. 152
      services/pull/temp_repo.go

2
integrations/integration_test.go

@ -125,6 +125,7 @@ func initIntegrationTest() {
setting.SetCustomPathAndConf("", "", "")
setting.NewContext()
os.RemoveAll(models.LocalCopyPath())
setting.CheckLFSVersion()
setting.InitDBConfig()
@ -182,7 +183,6 @@ func prepareTestEnv(t testing.TB, skip ...int) func() {
deferFn := PrintCurrentTest(t, ourSkip)
assert.NoError(t, models.LoadFixtures())
assert.NoError(t, os.RemoveAll(setting.RepoRootPath))
assert.NoError(t, os.RemoveAll(models.LocalCopyPath()))
assert.NoError(t, com.CopyDir(path.Join(filepath.Dir(setting.AppPath), "integrations/gitea-repositories-meta"),
setting.RepoRootPath))

18
models/helper_directory.go

@ -6,15 +6,13 @@ package models
import (
"fmt"
"io/ioutil"
"os"
"path"
"path/filepath"
"time"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/setting"
"github.com/unknwon/com"
)
// LocalCopyPath returns the local repository temporary copy path.
@ -27,11 +25,15 @@ func LocalCopyPath() string {
// CreateTemporaryPath creates a temporary path
func CreateTemporaryPath(prefix string) (string, error) {
timeStr := com.ToStr(time.Now().Nanosecond()) // SHOULD USE SOMETHING UNIQUE
basePath := path.Join(LocalCopyPath(), prefix+"-"+timeStr+".git")
if err := os.MkdirAll(filepath.Dir(basePath), os.ModePerm); err != nil {
log.Error("Unable to create temporary directory: %s (%v)", basePath, err)
return "", fmt.Errorf("Failed to create dir %s: %v", basePath, err)
if err := os.MkdirAll(LocalCopyPath(), os.ModePerm); err != nil {
log.Error("Unable to create localcopypath directory: %s (%v)", LocalCopyPath(), err)
return "", fmt.Errorf("Failed to create localcopypath directory %s: %v", LocalCopyPath(), err)
}
basePath, err := ioutil.TempDir(LocalCopyPath(), prefix+".git")
if err != nil {
log.Error("Unable to create temporary directory: %s-*.git (%v)", prefix, err)
return "", fmt.Errorf("Failed to create dir %s-*.git: %v", prefix, err)
}
return basePath, nil
}

4
models/issue_xref_test.go

@ -142,8 +142,8 @@ func testCreatePR(t *testing.T, repo, doer int64, title, content string) *PullRe
r := AssertExistsAndLoadBean(t, &Repository{ID: repo}).(*Repository)
d := AssertExistsAndLoadBean(t, &User{ID: doer}).(*User)
i := &Issue{RepoID: r.ID, PosterID: d.ID, Poster: d, Title: title, Content: content, IsPull: true}
pr := &PullRequest{HeadRepoID: repo, BaseRepoID: repo, HeadBranch: "head", BaseBranch: "base"}
assert.NoError(t, NewPullRequest(r, i, nil, nil, pr, nil))
pr := &PullRequest{HeadRepoID: repo, BaseRepoID: repo, HeadBranch: "head", BaseBranch: "base", Status: PullRequestStatusMergeable}
assert.NoError(t, NewPullRequest(r, i, nil, nil, pr))
pr.Issue = i
return pr
}

187
models/pull.go

@ -6,22 +6,16 @@
package models
import (
"bufio"
"fmt"
"os"
"path"
"path/filepath"
"strconv"
"strings"
"time"
"code.gitea.io/gitea/modules/git"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/setting"
api "code.gitea.io/gitea/modules/structs"
"code.gitea.io/gitea/modules/timeutil"
"github.com/unknwon/com"
)
// PullRequestType defines pull request type
@ -481,125 +475,12 @@ func (pr *PullRequest) SetMerged() (err error) {
return nil
}
// patchConflicts is a list of conflict description from Git.
var patchConflicts = []string{
"patch does not apply",
"already exists in working directory",
"unrecognized input",
"error:",
}
// TestPatch checks if patch can be merged to base repository without conflict.
func (pr *PullRequest) TestPatch() error {
return pr.testPatch(x)
}
// testPatch checks if patch can be merged to base repository without conflict.
func (pr *PullRequest) testPatch(e Engine) (err error) {
if pr.BaseRepo == nil {
pr.BaseRepo, err = getRepositoryByID(e, pr.BaseRepoID)
if err != nil {
return fmt.Errorf("GetRepositoryByID: %v", err)
}
}
patchPath, err := pr.BaseRepo.patchPath(e, pr.Index)
if err != nil {
return fmt.Errorf("BaseRepo.PatchPath: %v", err)
}
// Fast fail if patch does not exist, this assumes data is corrupted.
if !com.IsFile(patchPath) {
log.Trace("PullRequest[%d].testPatch: ignored corrupted data", pr.ID)
return nil
}
RepoWorkingPool.CheckIn(com.ToStr(pr.BaseRepoID))
defer RepoWorkingPool.CheckOut(com.ToStr(pr.BaseRepoID))
log.Trace("PullRequest[%d].testPatch (patchPath): %s", pr.ID, patchPath)
pr.Status = PullRequestStatusChecking
indexTmpPath := filepath.Join(os.TempDir(), "gitea-"+pr.BaseRepo.Name+"-"+strconv.Itoa(time.Now().Nanosecond()))
defer os.Remove(indexTmpPath)
_, err = git.NewCommand("read-tree", pr.BaseBranch).RunInDirWithEnv("", []string{"GIT_DIR=" + pr.BaseRepo.RepoPath(), "GIT_INDEX_FILE=" + indexTmpPath})
if err != nil {
return fmt.Errorf("git read-tree --index-output=%s %s: %v", indexTmpPath, pr.BaseBranch, err)
}
prUnit, err := pr.BaseRepo.getUnit(e, UnitTypePullRequests)
if err != nil {
return err
}
prConfig := prUnit.PullRequestsConfig()
args := []string{"apply", "--check", "--cached"}
if prConfig.IgnoreWhitespaceConflicts {
args = append(args, "--ignore-whitespace")
}
args = append(args, patchPath)
pr.ConflictedFiles = []string{}
stderrBuilder := new(strings.Builder)
err = git.NewCommand(args...).RunInDirTimeoutEnvPipeline(
[]string{"GIT_INDEX_FILE=" + indexTmpPath, "GIT_DIR=" + pr.BaseRepo.RepoPath()},
-1,
"",
nil,
stderrBuilder)
stderr := stderrBuilder.String()
if err != nil {
for i := range patchConflicts {
if strings.Contains(stderr, patchConflicts[i]) {
log.Trace("PullRequest[%d].testPatch (apply): has conflict: %s", pr.ID, stderr)
const prefix = "error: patch failed:"
pr.Status = PullRequestStatusConflict
pr.ConflictedFiles = make([]string, 0, 5)
scanner := bufio.NewScanner(strings.NewReader(stderr))
for scanner.Scan() {
line := scanner.Text()
if strings.HasPrefix(line, prefix) {
var found bool
var filepath = strings.TrimSpace(strings.Split(line[len(prefix):], ":")[0])
for _, f := range pr.ConflictedFiles {
if f == filepath {
found = true
break
}
}
if !found {
pr.ConflictedFiles = append(pr.ConflictedFiles, filepath)
}
}
// only list 10 conflicted files
if len(pr.ConflictedFiles) >= 10 {
break
}
}
if len(pr.ConflictedFiles) > 0 {
log.Trace("Found %d files conflicted: %v", len(pr.ConflictedFiles), pr.ConflictedFiles)
}
return nil
}
}
return fmt.Errorf("git apply --check: %v - %s", err, stderr)
}
return nil
}
// NewPullRequest creates new pull request with labels for repository.
func NewPullRequest(repo *Repository, pull *Issue, labelIDs []int64, uuids []string, pr *PullRequest, patch []byte) (err error) {
func NewPullRequest(repo *Repository, pull *Issue, labelIDs []int64, uuids []string, pr *PullRequest) (err error) {
// Retry several times in case INSERT fails due to duplicate key for (repo_id, index); see #7887
i := 0
for {
if err = newPullRequestAttempt(repo, pull, labelIDs, uuids, pr, patch); err == nil {
if err = newPullRequestAttempt(repo, pull, labelIDs, uuids, pr); err == nil {
return nil
}
if !IsErrNewIssueInsert(err) {
@ -613,7 +494,7 @@ func NewPullRequest(repo *Repository, pull *Issue, labelIDs []int64, uuids []str
return fmt.Errorf("NewPullRequest: too many errors attempting to insert the new issue. Last error was: %v", err)
}
func newPullRequestAttempt(repo *Repository, pull *Issue, labelIDs []int64, uuids []string, pr *PullRequest, patch []byte) (err error) {
func newPullRequestAttempt(repo *Repository, pull *Issue, labelIDs []int64, uuids []string, pr *PullRequest) (err error) {
sess := x.NewSession()
defer sess.Close()
if err = sess.Begin(); err != nil {
@ -635,20 +516,6 @@ func newPullRequestAttempt(repo *Repository, pull *Issue, labelIDs []int64, uuid
pr.Index = pull.Index
pr.BaseRepo = repo
pr.Status = PullRequestStatusChecking
if len(patch) > 0 {
if err = repo.savePatch(sess, pr.Index, patch); err != nil {
return fmt.Errorf("SavePatch: %v", err)
}
if err = pr.testPatch(sess); err != nil {
return fmt.Errorf("testPatch: %v", err)
}
}
// No conflict appears after test means mergeable.
if pr.Status == PullRequestStatusChecking {
pr.Status = PullRequestStatusMergeable
}
pr.IssueID = pull.ID
if _, err = sess.Insert(pr); err != nil {
@ -764,54 +631,6 @@ func (pr *PullRequest) UpdateCols(cols ...string) error {
return err
}
// UpdatePatch generates and saves a new patch.
func (pr *PullRequest) UpdatePatch() (err error) {
if err = pr.GetHeadRepo(); err != nil {
return fmt.Errorf("GetHeadRepo: %v", err)
} else if pr.HeadRepo == nil {
log.Trace("PullRequest[%d].UpdatePatch: ignored corrupted data", pr.ID)
return nil
}
if err = pr.GetBaseRepo(); err != nil {
return fmt.Errorf("GetBaseRepo: %v", err)
}
headGitRepo, err := git.OpenRepository(pr.HeadRepo.RepoPath())
if err != nil {
return fmt.Errorf("OpenRepository: %v", err)
}
defer headGitRepo.Close()
// Add a temporary remote.
tmpRemote := com.ToStr(time.Now().UnixNano())
if err = headGitRepo.AddRemote(tmpRemote, RepoPath(pr.BaseRepo.MustOwner().Name, pr.BaseRepo.Name), true); err != nil {
return fmt.Errorf("AddRemote: %v", err)
}
defer func() {
if err := headGitRepo.RemoveRemote(tmpRemote); err != nil {
log.Error("UpdatePatch: RemoveRemote: %s", err)
}
}()
pr.MergeBase, _, err = headGitRepo.GetMergeBase(tmpRemote, pr.BaseBranch, pr.HeadBranch)
if err != nil {
return fmt.Errorf("GetMergeBase: %v", err)
} else if err = pr.Update(); err != nil {
return fmt.Errorf("Update: %v", err)
}
patch, err := headGitRepo.GetPatch(pr.MergeBase, pr.HeadBranch)
if err != nil {
return fmt.Errorf("GetPatch: %v", err)
}
if err = pr.BaseRepo.SavePatch(pr.Index, patch); err != nil {
return fmt.Errorf("BaseRepo.SavePatch: %v", err)
}
return nil
}
// PushToBaseRepo pushes commits from branches of head repository to
// corresponding branches of base repository.
// FIXME: Only push branches that are actually updates?

2
models/pull_test.go

@ -190,8 +190,6 @@ func TestPullRequest_UpdateCols(t *testing.T) {
CheckConsistencyFor(t, pr)
}
// TODO TestPullRequest_UpdatePatch
// TODO TestPullRequest_PushToBaseRepo
func TestPullRequestList_LoadAttributes(t *testing.T) {

36
models/repo.go

@ -887,42 +887,6 @@ func (repo *Repository) DescriptionHTML() template.HTML {
return template.HTML(markup.Sanitize(string(desc)))
}
// PatchPath returns corresponding patch file path of repository by given issue ID.
func (repo *Repository) PatchPath(index int64) (string, error) {
return repo.patchPath(x, index)
}
func (repo *Repository) patchPath(e Engine, index int64) (string, error) {
if err := repo.getOwner(e); err != nil {
return "", err
}
return filepath.Join(RepoPath(repo.Owner.Name, repo.Name), "pulls", com.ToStr(index)+".patch"), nil
}
// SavePatch saves patch data to corresponding location by given issue ID.
func (repo *Repository) SavePatch(index int64, patch []byte) error {
return repo.savePatch(x, index, patch)
}
func (repo *Repository) savePatch(e Engine, index int64, patch []byte) error {
patchPath, err := repo.patchPath(e, index)
if err != nil {
return fmt.Errorf("PatchPath: %v", err)
}
dir := filepath.Dir(patchPath)
if err := os.MkdirAll(dir, os.ModePerm); err != nil {
return fmt.Errorf("Failed to create dir %s: %v", dir, err)
}
if err = ioutil.WriteFile(patchPath, patch, 0644); err != nil {
return fmt.Errorf("WriteFile: %v", err)
}
return nil
}
func isRepositoryExist(e Engine, u *User, repoName string) (bool, error) {
has, err := e.Get(&Repository{
OwnerID: u.ID,

28
modules/git/repo_compare.go

@ -6,7 +6,6 @@
package git
import (
"bytes"
"container/list"
"fmt"
"io"
@ -94,19 +93,22 @@ func (repo *Repository) GetCompareInfo(basePath, baseBranch, headBranch string)
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)
// GetDiffOrPatch generates either diff or formatted patch data between given revisions
func (repo *Repository) GetDiffOrPatch(base, head string, w io.Writer, formatted bool) error {
if formatted {
return repo.GetPatch(base, head, w)
}
return repo.GetDiff(base, head, w)
}
// 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)
// GetDiff generates and returns patch data between given revisions.
func (repo *Repository) GetDiff(base, head string, w io.Writer) error {
return NewCommand("diff", "-p", "--binary", base, head).
RunInDirPipeline(repo.Path, w, nil)
}
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
// GetPatch generates and returns format-patch data between given revisions.
func (repo *Repository) GetPatch(base, head string, w io.Writer) error {
return NewCommand("format-patch", "--binary", "--stdout", base+"..."+head).
RunInDirPipeline(repo.Path, w, nil)
}

4
modules/git/repo_compare_test.go

@ -5,6 +5,7 @@
package git
import (
"bytes"
"io/ioutil"
"os"
"path/filepath"
@ -21,7 +22,8 @@ func TestGetFormatPatch(t *testing.T) {
repo, err := OpenRepository(clonedPath)
assert.NoError(t, err)
defer repo.Close()
rd, err := repo.GetFormatPatch("8d92fc95^", "8d92fc95")
rd := &bytes.Buffer{}
err = repo.GetPatch("8d92fc95^", "8d92fc95", rd)
assert.NoError(t, err)
patchb, err := ioutil.ReadAll(rd)
assert.NoError(t, err)

8
routers/api/v1/repo/pull.go

@ -244,12 +244,6 @@ func CreatePullRequest(ctx *context.APIContext, form api.CreatePullRequestOption
milestoneID = milestone.ID
}
patch, err := headGitRepo.GetPatch(compareInfo.MergeBase, headBranch)
if err != nil {
ctx.Error(500, "GetPatch", err)
return
}
var deadlineUnix timeutil.TimeStamp
if form.Deadline != nil {
deadlineUnix = timeutil.TimeStamp(form.Deadline.Unix())
@ -306,7 +300,7 @@ func CreatePullRequest(ctx *context.APIContext, form api.CreatePullRequestOption
}
}
if err := pull_service.NewPullRequest(repo, prIssue, labelIDs, []string{}, pr, patch, assigneeIDs); err != nil {
if err := pull_service.NewPullRequest(repo, prIssue, labelIDs, []string{}, pr, assigneeIDs); err != nil {
if models.IsErrUserDoesNotHaveAccessToRepo(err) {
ctx.Error(400, "UserDoesNotHaveAccessToRepo", err)
return

5
routers/repo/issue.go

@ -1282,11 +1282,6 @@ func NewComment(ctx *context.Context, form auth.CreateCommentForm) {
// Regenerate patch and test conflict.
if pr == nil {
if err = issue.PullRequest.UpdatePatch(); err != nil {
ctx.ServerError("UpdatePatch", err)
return
}
pull_service.AddToTaskQueue(issue.PullRequest)
}
}

71
routers/repo/pull.go

@ -11,7 +11,6 @@ import (
"crypto/subtle"
"fmt"
"html"
"io"
"path"
"strings"
@ -785,12 +784,6 @@ func CompareAndPullRequestPost(ctx *context.Context, form auth.CreateIssueForm)
return
}
patch, err := headGitRepo.GetPatch(prInfo.MergeBase, headBranch)
if err != nil {
ctx.ServerError("GetPatch", err)
return
}
pullIssue := &models.Issue{
RepoID: repo.ID,
Title: form.Title,
@ -813,7 +806,7 @@ func CompareAndPullRequestPost(ctx *context.Context, form auth.CreateIssueForm)
// FIXME: check error in the case two people send pull request at almost same time, give nice error prompt
// instead of 500.
if err := pull_service.NewPullRequest(repo, pullIssue, labelIDs, attachments, pullRequest, patch, assigneeIDs); err != nil {
if err := pull_service.NewPullRequest(repo, pullIssue, labelIDs, attachments, pullRequest, assigneeIDs); err != nil {
if models.IsErrUserDoesNotHaveAccessToRepo(err) {
ctx.Error(400, "UserDoesNotHaveAccessToRepo", err.Error())
return
@ -981,44 +974,16 @@ func CleanUpPullRequest(ctx *context.Context) {
// DownloadPullDiff render a pull's raw diff
func DownloadPullDiff(ctx *context.Context) {
issue, err := models.GetIssueByIndex(ctx.Repo.Repository.ID, ctx.ParamsInt64(":index"))
if err != nil {
if models.IsErrIssueNotExist(err) {
ctx.NotFound("GetIssueByIndex", err)
} else {
ctx.ServerError("GetIssueByIndex", err)
}
return
}
// Return not found if it's not a pull request
if !issue.IsPull {
ctx.NotFound("DownloadPullDiff",
fmt.Errorf("Issue is not a pull request"))
return
}
if err = issue.LoadPullRequest(); err != nil {
ctx.ServerError("LoadPullRequest", err)
return
}
pr := issue.PullRequest
if err = pr.GetBaseRepo(); err != nil {
ctx.ServerError("GetBaseRepo", err)
return
}
patch, err := pr.BaseRepo.PatchPath(pr.Index)
if err != nil {
ctx.ServerError("PatchPath", err)
return
}
ctx.ServeFileContent(patch)
DownloadPullDiffOrPatch(ctx, false)
}
// DownloadPullPatch render a pull's raw patch
func DownloadPullPatch(ctx *context.Context) {
DownloadPullDiffOrPatch(ctx, true)
}
// DownloadPullDiffOrPatch render a pull's raw diff or patch
func DownloadPullDiffOrPatch(ctx *context.Context, patch bool) {
issue, err := models.GetIssueByIndex(ctx.Repo.Repository.ID, ctx.ParamsInt64(":index"))
if err != nil {
if models.IsErrIssueNotExist(err) {
@ -1042,27 +1007,9 @@ func DownloadPullPatch(ctx *context.Context) {
}
pr := issue.PullRequest
if err = pr.GetHeadRepo(); err != nil {
ctx.ServerError("GetHeadRepo", err)
return
}
headGitRepo, err := git.OpenRepository(pr.HeadRepo.RepoPath())
if err != nil {
ctx.ServerError("OpenRepository", err)
return
}
defer headGitRepo.Close()
patch, err := headGitRepo.GetFormatPatch(pr.MergeBase, pr.HeadBranch)
if err != nil {
ctx.ServerError("GetFormatPatch", err)
return
}
_, err = io.Copy(ctx, patch)
if err != nil {
ctx.ServerError("io.Copy", err)
if err := pull_service.DownloadDiffOrPatch(pr, ctx, patch); err != nil {
ctx.ServerError("DownloadDiffOrPatch", err)
return
}
}

10
services/pull/check.go

@ -170,7 +170,7 @@ func TestPullRequests() {
if manuallyMerged(pr) {
continue
}
if err := pr.TestPatch(); err != nil {
if err := TestPatch(pr); err != nil {
log.Error("testPatch: %v", err)
continue
}
@ -194,7 +194,13 @@ func TestPullRequests() {
continue
} else if manuallyMerged(pr) {
continue
} else if err = pr.TestPatch(); err != nil {
}
pr.Status = models.PullRequestStatusChecking
if err := pr.Update(); err != nil {
log.Error("testPatch[%d]: Unable to update status to Checking Status %v", pr.ID, err)
continue
}
if err = TestPatch(pr); err != nil {
log.Error("testPatch[%d]: %v", pr.ID, err)
continue
}

78
services/pull/merge.go

@ -68,95 +68,23 @@ func Merge(pr *models.PullRequest, doer *models.User, baseGitRepo *git.Repositor
}()
// Clone base repo.
tmpBasePath, err := models.CreateTemporaryPath("merge")
tmpBasePath, err := createTemporaryRepo(pr)
if err != nil {
log.Error("CreateTemporaryPath: %v", err)
return err
}
defer func() {
if err := models.RemoveTemporaryPath(tmpBasePath); err != nil {
log.Error("Merge: RemoveTemporaryPath: %s", err)
}
}()
headRepoPath := pr.HeadRepo.RepoPath()
if err := git.InitRepository(tmpBasePath, false); err != nil {
log.Error("git init tmpBasePath: %v", err)
return 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_CREATE|os.O_WRONLY, 0600)
if err != nil {
log.Error("Could not create .git/objects/info/alternates file in %s: %v", staging, err)
return err
}
defer f.Close()
data := filepath.Join(cache, "objects")
if _, err := fmt.Fprintln(f, data); err != nil {
log.Error("Could not write to .git/objects/info/alternates file in %s: %v", staging, err)
return err
}
return nil
}
if err := addCacheRepo(tmpBasePath, baseGitRepo.Path); err != nil {
log.Error("Unable to add base repository to temporary repo [%s -> %s]: %v", pr.BaseRepo.FullName(), tmpBasePath, err)
return fmt.Errorf("Unable to add base repository to temporary repo [%s -> tmpBasePath]: %v", pr.BaseRepo.FullName(), err)
}
var outbuf, errbuf strings.Builder
if err := git.NewCommand("remote", "add", "-t", pr.BaseBranch, "-m", pr.BaseBranch, "origin", baseGitRepo.Path).RunInDirPipeline(tmpBasePath, &outbuf, &errbuf); err != nil {
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())
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())
}
outbuf.Reset()
errbuf.Reset()
if err := git.NewCommand("fetch", "origin", "--no-tags", pr.BaseBranch+":"+baseBranch, pr.BaseBranch+":original_"+baseBranch).RunInDirPipeline(tmpBasePath, &outbuf, &errbuf); err != nil {
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())
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())
}
outbuf.Reset()
errbuf.Reset()
if err := git.NewCommand("symbolic-ref", "HEAD", git.BranchPrefix+baseBranch).RunInDirPipeline(tmpBasePath, &outbuf, &errbuf); err != nil {
log.Error("Unable to set HEAD as base branch [%s]: %v\n%s\n%s", tmpBasePath, err, outbuf.String(), errbuf.String())
return fmt.Errorf("Unable to set HEAD as base branch [tmpBasePath]: %v\n%s\n%s", err, outbuf.String(), errbuf.String())
}
outbuf.Reset()
errbuf.Reset()
if err := addCacheRepo(tmpBasePath, headRepoPath); err != nil {
log.Error("Unable to add head repository to temporary repo [%s -> %s]: %v", pr.HeadRepo.FullName(), tmpBasePath, err)
return fmt.Errorf("Unable to head base repository to temporary repo [%s -> tmpBasePath]: %v", pr.HeadRepo.FullName(), err)
}
if err := git.NewCommand("remote", "add", remoteRepoName, headRepoPath).RunInDirPipeline(tmpBasePath, &outbuf, &errbuf); err != nil {
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())
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())
}
outbuf.Reset()
errbuf.Reset()
trackingBranch := "tracking"
// Fetch head branch
if err := git.NewCommand("fetch", "--no-tags", remoteRepoName, pr.HeadBranch+":"+trackingBranch).RunInDirPipeline(tmpBasePath, &outbuf, &errbuf); err != nil {
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())
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())
}
outbuf.Reset()
errbuf.Reset()
stagingBranch := "staging"
var outbuf, errbuf strings.Builder
// Enable sparse-checkout
sparseCheckoutList, err := getDiffTree(tmpBasePath, baseBranch, trackingBranch)
if err != nil {

216
services/pull/patch.go

@ -0,0 +1,216 @@
// 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 pull
import (
"bufio"
"context"
"fmt"
"io"
"io/ioutil"
"os"
"strings"
"code.gitea.io/gitea/models"
"code.gitea.io/gitea/modules/git"
"code.gitea.io/gitea/modules/log"
)
// DownloadDiff will write the patch for the pr to the writer
func DownloadDiff(pr *models.PullRequest, w io.Writer, patch bool) error {
return DownloadDiffOrPatch(pr, w, false)
}
// DownloadPatch will write the patch for the pr to the writer
func DownloadPatch(pr *models.PullRequest, w io.Writer, patch bool) error {
return DownloadDiffOrPatch(pr, w, true)
}
// DownloadDiffOrPatch will write the patch for the pr to the writer
func DownloadDiffOrPatch(pr *models.PullRequest, w io.Writer, patch bool) error {
// Clone base repo.
tmpBasePath, err := createTemporaryRepo(pr)
if err != nil {
log.Error("CreateTemporaryPath: %v", err)
return err
}
defer func() {
if err := models.RemoveTemporaryPath(tmpBasePath); err != nil {
log.Error("DownloadDiff: RemoveTemporaryPath: %s", err)
}
}()
gitRepo, err := git.OpenRepository(tmpBasePath)
if err != nil {
return fmt.Errorf("OpenRepository: %v", err)
}
defer gitRepo.Close()
pr.MergeBase, err = git.NewCommand("merge-base", "--", "base", "tracking").RunInDir(tmpBasePath)
if err != nil {
pr.MergeBase = "base"
}
pr.MergeBase = strings.TrimSpace(pr.MergeBase)
if err := gitRepo.GetDiffOrPatch(pr.MergeBase, "tracking", w, patch); err != nil {
log.Error("Unable to get patch file from %s to %s in %s/%s Error: %v", pr.MergeBase, pr.HeadBranch, pr.BaseRepo.MustOwner().Name, pr.BaseRepo.Name, err)
return fmt.Errorf("Unable to get patch file from %s to %s in %s/%s Error: %v", pr.MergeBase, pr.HeadBranch, pr.BaseRepo.MustOwner().Name, pr.BaseRepo.Name, err)
}
return nil
}
var patchErrorSuffices = []string{
": already exists in index",
": patch does not apply",
": already exists in working directory",
"unrecognized input",
}
// TestPatch will test whether a simple patch will apply
func TestPatch(pr *models.PullRequest) error {
// Clone base repo.
tmpBasePath, err := createTemporaryRepo(pr)
if err != nil {
log.Error("CreateTemporaryPath: %v", err)
return err
}
defer func() {
if err := models.RemoveTemporaryPath(tmpBasePath); err != nil {
log.Error("Merge: RemoveTemporaryPath: %s", err)
}
}()
gitRepo, err := git.OpenRepository(tmpBasePath)
if err != nil {
return fmt.Errorf("OpenRepository: %v", err)
}
defer gitRepo.Close()
pr.MergeBase, err = git.NewCommand("merge-base", "--", "base", "tracking").RunInDir(tmpBasePath)
if err != nil {
var err2 error
pr.MergeBase, err2 = gitRepo.GetRefCommitID(git.BranchPrefix + "base")
if err2 != nil {
return fmt.Errorf("GetMergeBase: %v and can't find commit ID for base: %v", err, err2)
}
}
pr.MergeBase = strings.TrimSpace(pr.MergeBase)
tmpPatchFile, err := ioutil.TempFile("", "patch")
if err != nil {
log.Error("Unable to create temporary patch file! Error: %v", err)
return fmt.Errorf("Unable to create temporary patch file! Error: %v", err)
}
defer func() {
_ = os.Remove(tmpPatchFile.Name())
}()
if err := gitRepo.GetDiff(pr.MergeBase, "tracking", tmpPatchFile); err != nil {
tmpPatchFile.Close()
log.Error("Unable to get patch file from %s to %s in %s/%s Error: %v", pr.MergeBase, pr.HeadBranch, pr.BaseRepo.MustOwner().Name, pr.BaseRepo.Name, err)
return fmt.Errorf("Unable to get patch file from %s to %s in %s/%s Error: %v", pr.MergeBase, pr.HeadBranch, pr.BaseRepo.MustOwner().Name, pr.BaseRepo.Name, err)
}
stat, err := tmpPatchFile.Stat()
if err != nil {
tmpPatchFile.Close()
return fmt.Errorf("Unable to stat patch file: %v", err)
}
patchPath := tmpPatchFile.Name()
tmpPatchFile.Close()
if stat.Size() == 0 {
log.Debug("PullRequest[%d]: Patch is empty - ignoring", pr.ID)
pr.Status = models.PullRequestStatusMergeable
pr.ConflictedFiles = []string{}
return nil
}
log.Trace("PullRequest[%d].testPatch (patchPath): %s", pr.ID, patchPath)
pr.Status = models.PullRequestStatusChecking
_, err = git.NewCommand("read-tree", "base").RunInDir(tmpBasePath)
if err != nil {
return fmt.Errorf("git read-tree %s: %v", pr.BaseBranch, err)
}
prUnit, err := pr.BaseRepo.GetUnit(models.UnitTypePullRequests)
if err != nil {
return err
}
prConfig := prUnit.PullRequestsConfig()
args := []string{"apply", "--check", "--cached"}
if prConfig.IgnoreWhitespaceConflicts {
args = append(args, "--ignore-whitespace")
}
args = append(args, patchPath)
pr.ConflictedFiles = make([]string, 0, 5)
stderrReader, stderrWriter, err := os.Pipe()
if err != nil {
log.Error("Unable to open stderr pipe: %v", err)
return fmt.Errorf("Unable to open stderr pipe: %v", err)
}
defer func() {
_ = stderrReader.Close()
_ = stderrWriter.Close()
}()
conflict := false
err = git.NewCommand(args...).
RunInDirTimeoutEnvFullPipelineFunc(
nil, -1, tmpBasePath,
nil, stderrWriter, nil,
func(ctx context.Context, cancel context.CancelFunc) {
_ = stderrWriter.Close()
const prefix = "error: patch failed:"
const errorPrefix = "error: "
conflictMap := map[string]bool{}
scanner := bufio.NewScanner(stderrReader)
for scanner.Scan() {
line := scanner.Text()
fmt.Printf("%s\n", line)
if strings.HasPrefix(line, prefix) {
conflict = true
filepath := strings.TrimSpace(strings.Split(line[len(prefix):], ":")[0])
conflictMap[filepath] = true
} else if strings.HasPrefix(line, errorPrefix) {
conflict = true
for _, suffix := range patchErrorSuffices {
if strings.HasSuffix(line, suffix) {
filepath := strings.TrimSpace(strings.TrimSuffix(line[len(errorPrefix):], suffix))
if filepath != "" {
conflictMap[filepath] = true
}
break
}
}
}
// only list 10 conflicted files
if len(conflictMap) >= 10 {
break
}
}
if len(conflictMap) > 0 {
pr.ConflictedFiles = make([]string, 0, len(conflictMap))
for key := range conflictMap {
pr.ConflictedFiles = append(pr.ConflictedFiles, key)
}
}
_ = stderrReader.Close()
})
if err != nil {
if conflict {
pr.Status = models.PullRequestStatusConflict
log.Trace("Found %d files conflicted: %v", len(pr.ConflictedFiles), pr.ConflictedFiles)
return nil
}
return fmt.Errorf("git apply --check: %v", err)
}
pr.Status = models.PullRequestStatusMergeable
return nil
}

13
services/pull/pull.go

@ -15,8 +15,12 @@ import (
)
// NewPullRequest creates new pull request with labels for repository.
func NewPullRequest(repo *models.Repository, pull *models.Issue, labelIDs []int64, uuids []string, pr *models.PullRequest, patch []byte, assigneeIDs []int64) error {
if err := models.NewPullRequest(repo, pull, labelIDs, uuids, pr, patch); err != nil {
func NewPullRequest(repo *models.Repository, pull *models.Issue, labelIDs []int64, uuids []string, pr *models.PullRequest, assigneeIDs []int64) error {
if err := TestPatch(pr); err != nil {
return err
}
if err := models.NewPullRequest(repo, pull, labelIDs, uuids, pr); err != nil {
return err
}
@ -56,10 +60,7 @@ func checkForInvalidation(requests models.PullRequestList, repoID int64, doer *m
func addHeadRepoTasks(prs []*models.PullRequest) {
for _, pr := range prs {
log.Trace("addHeadRepoTasks[%d]: composing new test task", pr.ID)
if err := pr.UpdatePatch(); err != nil {
log.Error("UpdatePatch: %v", err)
continue
} else if err := pr.PushToBaseRepo(); err != nil {
if err := pr.PushToBaseRepo(); err != nil {
log.Error("PushToBaseRepo: %v", err)
continue
}

152
services/pull/temp_repo.go

@ -0,0 +1,152 @@
// 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 pull
import (
"fmt"
"os"
"path/filepath"
"strings"
"code.gitea.io/gitea/models"
"code.gitea.io/gitea/modules/git"
"code.gitea.io/gitea/modules/log"
)
func createTemporaryRepo(pr *models.PullRequest) (string, error) {
if err := pr.GetHeadRepo(); err != nil {
log.Error("GetHeadRepo: %v", err)
return "", fmt.Errorf("GetHeadRepo: %v", err)
} else if pr.HeadRepo == nil {
log.Error("Pr %d HeadRepo %d does not exist", pr.ID, pr.HeadRepoID)
return "", &models.ErrRepoNotExist{
ID: pr.HeadRepoID,
}
} else if err := pr.GetBaseRepo(); err != nil {
log.Error("GetBaseRepo: %v", err)
return "", fmt.Errorf("GetBaseRepo: %v", err)
} else if pr.BaseRepo == nil {
log.Error("Pr %d BaseRepo %d does not exist", pr.ID, pr.BaseRepoID)
return "", &models.ErrRepoNotExist{
ID: pr.BaseRepoID,
}
} else if err := pr.HeadRepo.GetOwner(); err != nil {
log.Error("HeadRepo.GetOwner: %v", err)
return "", fmt.Errorf("HeadRepo.GetOwner: %v", err)
} else if err := pr.BaseRepo.GetOwner(); err != nil {
log.Error("BaseRepo.GetOwner: %v", err)
return "", fmt.Errorf("BaseRepo.GetOwner: %v", err)
}
// Clone base repo.
tmpBasePath, err := models.CreateTemporaryPath("pull")
if err != nil {
log.Error("CreateTemporaryPath: %v", err)
return "", err
}
baseRepoPath := pr.BaseRepo.RepoPath()
headRepoPath := pr.HeadRepo.RepoPath()
if err := git.InitRepository(tmpBasePath, false); err != nil {
log.Error("git init tmpBasePath: %v", err)
if err := models.RemoveTemporaryPath(tmpBasePath); err != nil {
log.Error("CreateTempRepo: RemoveTemporaryPath: %s", err)
}
return "", 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_CREATE|os.O_WRONLY, 0600)
if err != nil {
log.Error("Could not create .git/objects/info/alternates file in %s: %v", staging, err)
return err
}
defer f.Close()
data := filepath.Join(cache, "objects")
if _, err := fmt.Fprintln(f, data); err != nil {
log.Error("Could not write to .git/objects/info/alternates file in %s: %v", staging, err)
return err
}
return nil
}
if err := addCacheRepo(tmpBasePath, baseRepoPath); err != nil {
log.Error("Unable to add base repository to temporary repo [%s -> %s]: %v", pr.BaseRepo.FullName(), tmpBasePath, err)
if err := models.RemoveTemporaryPath(tmpBasePath); err != nil {
log.Error("CreateTempRepo: RemoveTemporaryPath: %s", err)
}
return "", fmt.Errorf("Unable to add base repository to temporary repo [%s -> tmpBasePath]: %v", pr.BaseRepo.FullName(), err)
}
var outbuf, errbuf strings.Builder
if err := git.NewCommand("remote", "add", "-t", pr.BaseBranch, "-m", pr.BaseBranch, "origin", baseRepoPath).RunInDirPipeline(tmpBasePath, &outbuf, &errbuf); err != nil {
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())
if err := models.RemoveTemporaryPath(tmpBasePath); err != nil {
log.Error("CreateTempRepo: RemoveTemporaryPath: %s", err)
}
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())
}
outbuf.Reset()
errbuf.Reset()
if err := git.NewCommand("fetch", "origin", "--no-tags", pr.BaseBranch+":"+baseBranch, pr.BaseBranch+":original_"+baseBranch).RunInDirPipeline(tmpBasePath, &outbuf, &errbuf); err != nil {
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())
if err := models.RemoveTemporaryPath(tmpBasePath); err != nil {
log.Error("CreateTempRepo: RemoveTemporaryPath: %s", err)
}
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())
}
outbuf.Reset()
errbuf.Reset()
if err := git.NewCommand("symbolic-ref", "HEAD", git.BranchPrefix+baseBranch).RunInDirPipeline(tmpBasePath, &outbuf, &errbuf); err != nil {
log.Error("Unable to set HEAD as base branch [%s]: %v\n%s\n%s", tmpBasePath, err, outbuf.String(), errbuf.String())
if err := models.RemoveTemporaryPath(tmpBasePath); err != nil {
log.Error("CreateTempRepo: RemoveTemporaryPath: %s", err)
}
return "", fmt.Errorf("Unable to set HEAD as base branch [tmpBasePath]: %v\n%s\n%s", err, outbuf.String(), errbuf.String())
}
outbuf.Reset()
errbuf.Reset()
if err := addCacheRepo(tmpBasePath, headRepoPath); err != nil {
log.Error("Unable to add head repository to temporary repo [%s -> %s]: %v", pr.HeadRepo.FullName(), tmpBasePath, err)
if err := models.RemoveTemporaryPath(tmpBasePath); err != nil {
log.Error("CreateTempRepo: RemoveTemporaryPath: %s", err)
}
return "", fmt.Errorf("Unable to head base repository to temporary repo [%s -> tmpBasePath]: %v", pr.HeadRepo.FullName(), err)
}
if err := git.NewCommand("remote", "add", remoteRepoName, headRepoPath).RunInDirPipeline(tmpBasePath, &outbuf, &errbuf); err != nil {
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())
if err := models.RemoveTemporaryPath(tmpBasePath); err != nil {
log.Error("CreateTempRepo: RemoveTemporaryPath: %s", err)
}
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())
}
outbuf.Reset()
errbuf.Reset()
trackingBranch := "tracking"
// Fetch head branch
if err := git.NewCommand("fetch", "--no-tags", remoteRepoName, pr.HeadBranch+":"+trackingBranch).RunInDirPipeline(tmpBasePath, &outbuf, &errbuf); err != nil {
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())
if err := models.RemoveTemporaryPath(tmpBasePath); err != nil {
log.Error("CreateTempRepo: RemoveTemporaryPath: %s", err)
}
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())
}
outbuf.Reset()
errbuf.Reset()
return tmpBasePath, nil
}
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