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Stop cloning unnecessarily on PR update (#12839) (#12852) 

Backport #12839

Fix #12740

Signed-off-by: Andrew Thornton <art27@cantab.net>
This commit is contained in:
zeripath 2020-09-15 11:09:25 +01:00 committed by GitHub
parent 37572551d7
commit ff9d99f63d
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 19 additions and 60 deletions
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79
services/pull/pull.go
View File

@ -9,8 +9,6 @@ import (
"bytes"
"context"
"fmt"
"os"
"path"
"strings"
"time"
@ -177,18 +175,6 @@ func checkForInvalidation(requests models.PullRequestList, repoID int64, doer *m
return nil
}
func addHeadRepoTasks(prs []*models.PullRequest) {
for _, pr := range prs {
log.Trace("addHeadRepoTasks[%d]: composing new test task", pr.ID)
if err := PushToBaseRepo(pr); err != nil {
log.Error("PushToBaseRepo: %v", err)
continue
}
AddToTaskQueue(pr)
}
}
// AddTestPullRequestTask adds new test tasks by given head/base repository and head/base branch,
// and generate new patch for testing as needed.
func AddTestPullRequestTask(doer *models.User, repoID int64, branch string, isSync bool, oldCommitID, newCommitID string) {
@ -245,7 +231,15 @@ func AddTestPullRequestTask(doer *models.User, repoID int64, branch string, isSy
}
}
addHeadRepoTasks(prs)
for _, pr := range prs {
log.Trace("Updating PR[%d]: composing new test task", pr.ID)
if err := PushToBaseRepo(pr); err != nil {
log.Error("PushToBaseRepo: %v", err)
continue
}
AddToTaskQueue(pr)
}
log.Trace("AddTestPullRequestTask [base_repo_id: %d, base_branch: %s]: finding pull requests", repoID, branch)
prs, err = models.GetUnmergedPullRequestsByBaseInfo(repoID, branch)
@ -345,54 +339,17 @@ func checkIfPRContentChanged(pr *models.PullRequest, oldCommitID, newCommitID st
func PushToBaseRepo(pr *models.PullRequest) (err error) {
log.Trace("PushToBaseRepo[%d]: pushing commits to base repo '%s'", pr.BaseRepoID, pr.GetGitRefName())
// Clone base repo.
tmpBasePath, err := models.CreateTemporaryPath("pull")
if err != nil {
log.Error("CreateTemporaryPath: %v", err)
return err
}
defer func() {
err := models.RemoveTemporaryPath(tmpBasePath)
if err != nil {
log.Error("Error whilst removing temporary path: %s Error: %v", tmpBasePath, err)
}
}()
if err := pr.LoadHeadRepo(); err != nil {
log.Error("Unable to load head repository for PR[%d] Error: %v", pr.ID, err)
return err
}
headRepoPath := pr.HeadRepo.RepoPath()
if err := git.Clone(headRepoPath, tmpBasePath, git.CloneRepoOptions{
Bare: true,
Shared: true,
Branch: pr.HeadBranch,
Quiet: true,
}); err != nil {
log.Error("git clone tmpBasePath: %v", err)
return err
}
gitRepo, err := git.OpenRepository(tmpBasePath)
if err != nil {
return fmt.Errorf("OpenRepository: %v", err)
}
if err := pr.LoadBaseRepo(); err != nil {
log.Error("Unable to load base repository for PR[%d] Error: %v", pr.ID, err)
return err
}
if err := gitRepo.AddRemote("base", pr.BaseRepo.RepoPath(), false); err != nil {
return fmt.Errorf("tmpGitRepo.AddRemote: %v", err)
}
defer gitRepo.Close()
headFile := pr.GetGitRefName()
// Remove head in case there is a conflict.
file := path.Join(pr.BaseRepo.RepoPath(), headFile)
_ = os.Remove(file)
baseRepoPath := pr.BaseRepo.RepoPath()
if err = pr.LoadIssue(); err != nil {
return fmt.Errorf("unable to load issue %d for pr %d: %v", pr.IssueID, pr.ID, err)
@ -401,24 +358,26 @@ func PushToBaseRepo(pr *models.PullRequest) (err error) {
return fmt.Errorf("unable to load poster %d for pr %d: %v", pr.Issue.PosterID, pr.ID, err)
}
if err = git.Push(tmpBasePath, git.PushOptions{
Remote: "base",
Branch: fmt.Sprintf("%s:%s", pr.HeadBranch, headFile),
gitRefName := pr.GetGitRefName()
if err := git.Push(headRepoPath, git.PushOptions{
Remote: baseRepoPath,
Branch: pr.HeadBranch + ":" + gitRefName,
Force: true,
// Use InternalPushingEnvironment here because we know that pre-receive and post-receive do not run on a refs/pulls/...
Env: models.InternalPushingEnvironment(pr.Issue.Poster, pr.BaseRepo),
}); err != nil {
if git.IsErrPushOutOfDate(err) {
// This should not happen as we're using force!
log.Error("Unable to push PR head for %s#%d (%-v:%s) due to ErrPushOfDate: %v", pr.BaseRepo.FullName(), pr.Index, pr.BaseRepo, headFile, err)
log.Error("Unable to push PR head for %s#%d (%-v:%s) due to ErrPushOfDate: %v", pr.BaseRepo.FullName(), pr.Index, pr.BaseRepo, gitRefName, err)
return err
} else if git.IsErrPushRejected(err) {
rejectErr := err.(*git.ErrPushRejected)
log.Info("Unable to push PR head for %s#%d (%-v:%s) due to rejection:\nStdout: %s\nStderr: %s\nError: %v", pr.BaseRepo.FullName(), pr.Index, pr.BaseRepo, headFile, rejectErr.StdOut, rejectErr.StdErr, rejectErr.Err)
log.Info("Unable to push PR head for %s#%d (%-v:%s) due to rejection:\nStdout: %s\nStderr: %s\nError: %v", pr.BaseRepo.FullName(), pr.Index, pr.BaseRepo, gitRefName, rejectErr.StdOut, rejectErr.StdErr, rejectErr.Err)
return err
}
log.Error("Unable to push PR head for %s#%d (%-v:%s) due to Error: %v", pr.BaseRepo.FullName(), pr.Index, pr.BaseRepo, headFile, err)
return fmt.Errorf("Push: %s:%s %s:%s %v", pr.HeadRepo.FullName(), pr.HeadBranch, pr.BaseRepo.FullName(), headFile, err)
log.Error("Unable to push PR head for %s#%d (%-v:%s) due to Error: %v", pr.BaseRepo.FullName(), pr.Index, pr.BaseRepo, gitRefName, err)
return fmt.Errorf("Push: %s:%s %s:%s %v", pr.HeadRepo.FullName(), pr.HeadBranch, pr.BaseRepo.FullName(), gitRefName, err)
}
return nil