mirror of
https://github.com/go-gitea/gitea
synced 2024-12-23 17:14:27 +00:00
c52d48aae4
* Block PR on Outdated Branch * finalize * cleanup * fix typo and sentences thanks @guillep2k Co-Authored-By: guillep2k <18600385+guillep2k@users.noreply.github.com> Co-authored-by: guillep2k <18600385+guillep2k@users.noreply.github.com> Co-authored-by: Lauris BH <lauris@nix.lv>
596 lines
23 KiB
Go
596 lines
23 KiB
Go
// Copyright 2019 The Gitea Authors.
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// All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package pull
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import (
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"bufio"
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"bytes"
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"fmt"
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"io/ioutil"
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"os"
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"path/filepath"
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"regexp"
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"strings"
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"time"
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"code.gitea.io/gitea/models"
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"code.gitea.io/gitea/modules/cache"
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"code.gitea.io/gitea/modules/git"
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"code.gitea.io/gitea/modules/log"
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"code.gitea.io/gitea/modules/notification"
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"code.gitea.io/gitea/modules/references"
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"code.gitea.io/gitea/modules/setting"
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"code.gitea.io/gitea/modules/timeutil"
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issue_service "code.gitea.io/gitea/services/issue"
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"github.com/mcuadros/go-version"
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)
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// Merge merges pull request to base repository.
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// Caller should check PR is ready to be merged (review and status checks)
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// FIXME: add repoWorkingPull make sure two merges does not happen at same time.
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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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if err = pr.LoadHeadRepo(); err != nil {
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log.Error("LoadHeadRepo: %v", err)
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return fmt.Errorf("LoadHeadRepo: %v", err)
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} else if err = pr.LoadBaseRepo(); err != nil {
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log.Error("LoadBaseRepo: %v", err)
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return fmt.Errorf("LoadBaseRepo: %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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// Check if merge style is correct and allowed
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if !prConfig.IsMergeStyleAllowed(mergeStyle) {
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return models.ErrInvalidMergeStyle{ID: pr.BaseRepo.ID, Style: mergeStyle}
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}
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defer func() {
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go AddTestPullRequestTask(doer, pr.BaseRepo.ID, pr.BaseBranch, false, "", "")
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}()
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pr.MergedCommitID, err = rawMerge(pr, doer, mergeStyle, message)
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if err != nil {
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return err
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}
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pr.MergedUnix = timeutil.TimeStampNow()
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pr.Merger = doer
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pr.MergerID = doer.ID
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if _, err = pr.SetMerged(); err != nil {
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log.Error("setMerged [%d]: %v", pr.ID, err)
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}
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if err := pr.LoadIssue(); err != nil {
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log.Error("loadIssue [%d]: %v", pr.ID, err)
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}
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if err := pr.Issue.LoadRepo(); err != nil {
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log.Error("loadRepo for issue [%d]: %v", pr.ID, err)
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}
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if err := pr.Issue.Repo.GetOwner(); err != nil {
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log.Error("GetOwner for issue repo [%d]: %v", pr.ID, err)
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}
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notification.NotifyMergePullRequest(pr, doer)
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// Reset cached commit count
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cache.Remove(pr.Issue.Repo.GetCommitsCountCacheKey(pr.BaseBranch, true))
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// Resolve cross references
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refs, err := pr.ResolveCrossReferences()
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if err != nil {
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log.Error("ResolveCrossReferences: %v", err)
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return nil
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}
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for _, ref := range refs {
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if err = ref.LoadIssue(); err != nil {
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return err
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}
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if err = ref.Issue.LoadRepo(); err != nil {
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return err
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}
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close := (ref.RefAction == references.XRefActionCloses)
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if close != ref.Issue.IsClosed {
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if err = issue_service.ChangeStatus(ref.Issue, doer, close); err != nil {
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return err
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}
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}
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}
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return nil
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}
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// rawMerge perform the merge operation without changing any pull information in database
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func rawMerge(pr *models.PullRequest, doer *models.User, mergeStyle models.MergeStyle, message string) (string, 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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// Clone base repo.
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tmpBasePath, err := createTemporaryRepo(pr)
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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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defer func() {
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if err := models.RemoveTemporaryPath(tmpBasePath); err != nil {
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log.Error("Merge: RemoveTemporaryPath: %s", err)
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}
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}()
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baseBranch := "base"
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trackingBranch := "tracking"
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stagingBranch := "staging"
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var outbuf, errbuf strings.Builder
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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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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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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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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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} 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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// Switch off LFS process (set required, clean and smudge here also)
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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("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()
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errbuf.Reset()
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if err := gitConfigCommand().AddArguments("filter.lfs.clean", "").RunInDirPipeline(tmpBasePath, &outbuf, &errbuf); err != nil {
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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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}
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outbuf.Reset()
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errbuf.Reset()
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if err := gitConfigCommand().AddArguments("filter.lfs.smudge", "").RunInDirPipeline(tmpBasePath, &outbuf, &errbuf); err != nil {
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log.Error("git config [filter.lfs.smudge -> <> ]: %v\n%s\n%s", err, outbuf.String(), errbuf.String())
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return "", fmt.Errorf("git config [filter.lfs.smudge -> <> ]: %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, &outbuf, &errbuf); err != nil {
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log.Error("git config [core.sparseCheckout -> true ]: %v\n%s\n%s", err, outbuf.String(), errbuf.String())
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return "", fmt.Errorf("git config [core.sparsecheckout -> true]: %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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// Read base branch index
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if err := git.NewCommand("read-tree", "HEAD").RunInDirPipeline(tmpBasePath, &outbuf, &errbuf); err != nil {
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log.Error("git read-tree HEAD: %v\n%s\n%s", err, outbuf.String(), errbuf.String())
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return "", fmt.Errorf("Unable to read base branch in to the index: %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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// Determine if we should sign
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signArg := ""
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if version.Compare(binVersion, "1.7.9", ">=") {
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sign, keyID, _ := pr.SignMerge(doer, tmpBasePath, "HEAD", trackingBranch)
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if sign {
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signArg = "-S" + keyID
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} else if version.Compare(binVersion, "2.0.0", ">=") {
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signArg = "--no-gpg-sign"
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}
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}
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sig := doer.NewGitSig()
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commitTimeStr := time.Now().Format(time.RFC3339)
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// Because this may call hooks we should pass in the environment
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env := append(os.Environ(),
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"GIT_AUTHOR_NAME="+sig.Name,
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"GIT_AUTHOR_EMAIL="+sig.Email,
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"GIT_AUTHOR_DATE="+commitTimeStr,
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"GIT_COMMITTER_NAME="+sig.Name,
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"GIT_COMMITTER_EMAIL="+sig.Email,
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"GIT_COMMITTER_DATE="+commitTimeStr,
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)
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// Merge commits.
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switch mergeStyle {
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case models.MergeStyleMerge:
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cmd := git.NewCommand("merge", "--no-ff", "--no-commit", trackingBranch)
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if err := runMergeCommand(pr, mergeStyle, cmd, tmpBasePath); err != nil {
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log.Error("Unable to merge tracking into base: %v", err)
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return "", err
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}
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if err := commitAndSignNoAuthor(pr, message, signArg, tmpBasePath, env); err != nil {
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log.Error("Unable to make final commit: %v", err)
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return "", err
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}
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case models.MergeStyleRebase:
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fallthrough
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case models.MergeStyleRebaseMerge:
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// Checkout head branch
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if err := git.NewCommand("checkout", "-b", stagingBranch, trackingBranch).RunInDirPipeline(tmpBasePath, &outbuf, &errbuf); err != nil {
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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())
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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())
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}
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outbuf.Reset()
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errbuf.Reset()
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// Rebase before merging
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if err := git.NewCommand("rebase", baseBranch).RunInDirPipeline(tmpBasePath, &outbuf, &errbuf); err != nil {
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// Rebase will leave a REBASE_HEAD file in .git if there is a conflict
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if _, statErr := os.Stat(filepath.Join(tmpBasePath, ".git", "REBASE_HEAD")); statErr == nil {
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var commitSha string
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ok := false
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failingCommitPaths := []string{
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filepath.Join(tmpBasePath, ".git", "rebase-apply", "original-commit"), // Git < 2.26
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filepath.Join(tmpBasePath, ".git", "rebase-merge", "stopped-sha"), // Git >= 2.26
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}
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for _, failingCommitPath := range failingCommitPaths {
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if _, statErr := os.Stat(filepath.Join(failingCommitPath)); statErr == nil {
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commitShaBytes, readErr := ioutil.ReadFile(filepath.Join(failingCommitPath))
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if readErr != nil {
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// Abandon this attempt to handle the error
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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())
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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())
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}
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commitSha = strings.TrimSpace(string(commitShaBytes))
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ok = true
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break
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}
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}
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if !ok {
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log.Error("Unable to determine failing commit sha for this rebase message. Cannot cast as models.ErrRebaseConflicts.")
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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())
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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())
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}
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log.Debug("RebaseConflict at %s [%s:%s -> %s:%s]: %v\n%s\n%s", commitSha, pr.HeadRepo.FullName(), pr.HeadBranch, pr.BaseRepo.FullName(), pr.BaseBranch, err, outbuf.String(), errbuf.String())
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return "", models.ErrRebaseConflicts{
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Style: mergeStyle,
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CommitSHA: commitSha,
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StdOut: outbuf.String(),
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StdErr: errbuf.String(),
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Err: err,
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}
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}
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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())
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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())
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}
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outbuf.Reset()
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errbuf.Reset()
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// Checkout base branch again
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if err := git.NewCommand("checkout", baseBranch).RunInDirPipeline(tmpBasePath, &outbuf, &errbuf); err != nil {
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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())
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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())
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}
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outbuf.Reset()
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errbuf.Reset()
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cmd := git.NewCommand("merge")
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if mergeStyle == models.MergeStyleRebase {
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cmd.AddArguments("--ff-only")
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} else {
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cmd.AddArguments("--no-ff", "--no-commit")
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}
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cmd.AddArguments(stagingBranch)
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// Prepare merge with commit
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if err := runMergeCommand(pr, mergeStyle, cmd, tmpBasePath); err != nil {
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log.Error("Unable to merge staging into base: %v", err)
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return "", err
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}
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if mergeStyle == models.MergeStyleRebaseMerge {
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if err := commitAndSignNoAuthor(pr, message, signArg, tmpBasePath, env); err != nil {
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log.Error("Unable to make final commit: %v", err)
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return "", err
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}
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}
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case models.MergeStyleSquash:
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// Merge with squash
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cmd := git.NewCommand("merge", "--squash", trackingBranch)
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if err := runMergeCommand(pr, mergeStyle, cmd, tmpBasePath); err != nil {
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log.Error("Unable to merge --squash tracking into base: %v", err)
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return "", err
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}
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if err = pr.Issue.LoadPoster(); err != nil {
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log.Error("LoadPoster: %v", err)
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return "", fmt.Errorf("LoadPoster: %v", err)
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}
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sig := pr.Issue.Poster.NewGitSig()
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if signArg == "" {
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if err := git.NewCommand("commit", fmt.Sprintf("--author='%s <%s>'", sig.Name, sig.Email), "-m", message).RunInDirTimeoutEnvPipeline(env, -1, tmpBasePath, &outbuf, &errbuf); err != nil {
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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())
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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())
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}
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} else {
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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 {
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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())
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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())
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}
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}
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outbuf.Reset()
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errbuf.Reset()
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default:
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return "", models.ErrInvalidMergeStyle{ID: pr.BaseRepo.ID, Style: mergeStyle}
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}
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// OK we should cache our current head and origin/headbranch
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mergeHeadSHA, err := git.GetFullCommitID(tmpBasePath, "HEAD")
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if err != nil {
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return "", fmt.Errorf("Failed to get full commit id for HEAD: %v", err)
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}
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mergeBaseSHA, err := git.GetFullCommitID(tmpBasePath, "original_"+baseBranch)
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if err != nil {
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return "", fmt.Errorf("Failed to get full commit id for origin/%s: %v", pr.BaseBranch, err)
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}
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mergeCommitID, err := git.GetFullCommitID(tmpBasePath, baseBranch)
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if err != nil {
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return "", fmt.Errorf("Failed to get full commit id for the new merge: %v", err)
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}
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// Now it's questionable about where this should go - either after or before the push
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// I think in the interests of data safety - failures to push to the lfs should prevent
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// the merge as you can always remerge.
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if setting.LFS.StartServer {
|
|
if err := LFSPush(tmpBasePath, mergeHeadSHA, mergeBaseSHA, pr); err != nil {
|
|
return "", err
|
|
}
|
|
}
|
|
|
|
var headUser *models.User
|
|
err = pr.HeadRepo.GetOwner()
|
|
if err != nil {
|
|
if !models.IsErrUserNotExist(err) {
|
|
log.Error("Can't find user: %d for head repository - %v", pr.HeadRepo.OwnerID, err)
|
|
return "", err
|
|
}
|
|
log.Error("Can't find user: %d for head repository - defaulting to doer: %s - %v", pr.HeadRepo.OwnerID, doer.Name, err)
|
|
headUser = doer
|
|
} else {
|
|
headUser = pr.HeadRepo.Owner
|
|
}
|
|
|
|
env = models.FullPushingEnvironment(
|
|
headUser,
|
|
doer,
|
|
pr.BaseRepo,
|
|
pr.BaseRepo.Name,
|
|
pr.ID,
|
|
)
|
|
|
|
// Push back to upstream.
|
|
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 "", &git.ErrPushOutOfDate{
|
|
StdOut: outbuf.String(),
|
|
StdErr: errbuf.String(),
|
|
Err: err,
|
|
}
|
|
} else if strings.Contains(errbuf.String(), "! [remote rejected]") {
|
|
err := &git.ErrPushRejected{
|
|
StdOut: outbuf.String(),
|
|
StdErr: errbuf.String(),
|
|
Err: err,
|
|
}
|
|
err.GenerateMessage()
|
|
return "", err
|
|
}
|
|
return "", fmt.Errorf("git push: %s", errbuf.String())
|
|
}
|
|
outbuf.Reset()
|
|
errbuf.Reset()
|
|
|
|
return mergeCommitID, 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) {
|
|
getDiffTreeFromBranch := func(repoPath, baseBranch, headBranch string) (string, error) {
|
|
var outbuf, errbuf strings.Builder
|
|
// Compute the diff-tree for sparse-checkout
|
|
if err := git.NewCommand("diff-tree", "--no-commit-id", "--name-only", "-r", "-z", "--root", baseBranch, headBranch, "--").RunInDirPipeline(repoPath, &outbuf, &errbuf); err != nil {
|
|
return "", fmt.Errorf("git diff-tree [%s base:%s head:%s]: %s", repoPath, baseBranch, headBranch, errbuf.String())
|
|
}
|
|
return outbuf.String(), nil
|
|
}
|
|
|
|
scanNullTerminatedStrings := func(data []byte, atEOF bool) (advance int, token []byte, err error) {
|
|
if atEOF && len(data) == 0 {
|
|
return 0, nil, nil
|
|
}
|
|
if i := bytes.IndexByte(data, '\x00'); i >= 0 {
|
|
return i + 1, data[0:i], nil
|
|
}
|
|
if atEOF {
|
|
return len(data), data, nil
|
|
}
|
|
return 0, nil, nil
|
|
}
|
|
|
|
list, err := getDiffTreeFromBranch(repoPath, baseBranch, headBranch)
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
|
|
// Prefixing '/' for each entry, otherwise all files with the same name in subdirectories would be matched.
|
|
out := bytes.Buffer{}
|
|
scanner := bufio.NewScanner(strings.NewReader(list))
|
|
scanner.Split(scanNullTerminatedStrings)
|
|
for scanner.Scan() {
|
|
filepath := scanner.Text()
|
|
// escape '*', '?', '[', spaces and '!' prefix
|
|
filepath = escapedSymbols.ReplaceAllString(filepath, `\$1`)
|
|
// no necessary to escape the first '#' symbol because the first symbol is '/'
|
|
fmt.Fprintf(&out, "/%s\n", filepath)
|
|
}
|
|
|
|
return out.String(), nil
|
|
}
|
|
|
|
// IsSignedIfRequired check if merge will be signed if required
|
|
func IsSignedIfRequired(pr *models.PullRequest, doer *models.User) (bool, error) {
|
|
if err := pr.LoadProtectedBranch(); err != nil {
|
|
return false, err
|
|
}
|
|
|
|
if pr.ProtectedBranch == nil || !pr.ProtectedBranch.RequireSignedCommits {
|
|
return true, nil
|
|
}
|
|
|
|
sign, _, err := pr.SignMerge(doer, pr.BaseRepo.RepoPath(), pr.BaseBranch, pr.GetGitRefName())
|
|
|
|
return sign, err
|
|
}
|
|
|
|
// IsUserAllowedToMerge check if user is allowed to merge PR with given permissions and branch protections
|
|
func IsUserAllowedToMerge(pr *models.PullRequest, p models.Permission, user *models.User) (bool, error) {
|
|
if user == nil {
|
|
return false, nil
|
|
}
|
|
|
|
err := pr.LoadProtectedBranch()
|
|
if err != nil {
|
|
return false, err
|
|
}
|
|
|
|
if (p.CanWrite(models.UnitTypeCode) && pr.ProtectedBranch == nil) || (pr.ProtectedBranch != nil && pr.ProtectedBranch.IsUserMergeWhitelisted(user.ID)) {
|
|
return true, nil
|
|
}
|
|
|
|
return false, nil
|
|
}
|
|
|
|
// CheckPRReadyToMerge checks whether the PR is ready to be merged (reviews and status checks)
|
|
func CheckPRReadyToMerge(pr *models.PullRequest) (err error) {
|
|
if err = pr.LoadBaseRepo(); err != nil {
|
|
return fmt.Errorf("LoadBaseRepo: %v", err)
|
|
}
|
|
|
|
if err = pr.LoadProtectedBranch(); err != nil {
|
|
return fmt.Errorf("LoadProtectedBranch: %v", err)
|
|
}
|
|
if pr.ProtectedBranch == nil {
|
|
return nil
|
|
}
|
|
|
|
isPass, err := IsPullCommitStatusPass(pr)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if !isPass {
|
|
return models.ErrNotAllowedToMerge{
|
|
Reason: "Not all required status checks successful",
|
|
}
|
|
}
|
|
|
|
if !pr.ProtectedBranch.HasEnoughApprovals(pr) {
|
|
return models.ErrNotAllowedToMerge{
|
|
Reason: "Does not have enough approvals",
|
|
}
|
|
}
|
|
if pr.ProtectedBranch.MergeBlockedByRejectedReview(pr) {
|
|
return models.ErrNotAllowedToMerge{
|
|
Reason: "There are requested changes",
|
|
}
|
|
}
|
|
|
|
if pr.ProtectedBranch.MergeBlockedByOutdatedBranch(pr) {
|
|
return models.ErrNotAllowedToMerge{
|
|
Reason: "The head branch is behind the base branch",
|
|
}
|
|
}
|
|
|
|
return nil
|
|
}
|