mirror of
https://github.com/go-gitea/gitea.git
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3705168837
* feature: add agit flow support ref: https://git-repo.info/en/2020/03/agit-flow-and-git-repo/ example: ```Bash git checkout -b test echo "test" >> README.md git commit -m "test" git push origin HEAD:refs/for/master -o topic=test ``` Signed-off-by: a1012112796 <1012112796@qq.com> * fix lint * simplify code add fix some nits * update merge help message * Apply suggestions from code review. Thanks @jiangxin * add forced-update message * fix lint * splite writePktLine * add refs/for/<target-branch>/<topic-branch> support also * Add test code add fix api * fix lint * fix test * skip test if git version < 2.29 * try test with git 2.30.1 * fix permission check bug * fix some nit * logic implify and test code update * fix bug * apply suggestions from code review * prepare for merge Signed-off-by: Andrew Thornton <art27@cantab.net> * fix permission check bug - test code update - apply suggestions from code review @zeripath Signed-off-by: a1012112796 <1012112796@qq.com> * fix bug when target branch isn't exist * prevent some special push and fix some nits * fix lint * try splite * Apply suggestions from code review - fix permission check - handle user rename * fix version negotiation * remane * fix template * handle empty repo * ui: fix branch link under the title * fix nits Co-authored-by: Andrew Thornton <art27@cantab.net> Co-authored-by: 6543 <6543@obermui.de> Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
168 lines
7.2 KiB
Go
168 lines
7.2 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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"fmt"
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"os"
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"path/filepath"
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"strings"
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"code.gitea.io/gitea/models"
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"code.gitea.io/gitea/modules/git"
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"code.gitea.io/gitea/modules/log"
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)
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// createTemporaryRepo creates a temporary repo with "base" for pr.BaseBranch and "tracking" for pr.HeadBranch
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// it also create a second base branch called "original_base"
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func createTemporaryRepo(pr *models.PullRequest) (string, 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 pr.HeadRepo == nil {
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log.Error("Pr %d HeadRepo %d does not exist", pr.ID, pr.HeadRepoID)
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return "", &models.ErrRepoNotExist{
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ID: pr.HeadRepoID,
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}
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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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} else if pr.BaseRepo == nil {
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log.Error("Pr %d BaseRepo %d does not exist", pr.ID, pr.BaseRepoID)
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return "", &models.ErrRepoNotExist{
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ID: pr.BaseRepoID,
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}
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} else if err := pr.HeadRepo.GetOwner(); err != nil {
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log.Error("HeadRepo.GetOwner: %v", err)
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return "", fmt.Errorf("HeadRepo.GetOwner: %v", err)
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} else if err := pr.BaseRepo.GetOwner(); err != nil {
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log.Error("BaseRepo.GetOwner: %v", err)
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return "", fmt.Errorf("BaseRepo.GetOwner: %v", err)
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}
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// Clone base repo.
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tmpBasePath, err := models.CreateTemporaryPath("pull")
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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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baseRepoPath := pr.BaseRepo.RepoPath()
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headRepoPath := pr.HeadRepo.RepoPath()
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if err := git.InitRepository(tmpBasePath, false); err != nil {
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log.Error("git init tmpBasePath: %v", err)
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if err := models.RemoveTemporaryPath(tmpBasePath); err != nil {
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log.Error("CreateTempRepo: RemoveTemporaryPath: %s", err)
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}
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return "", err
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}
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remoteRepoName := "head_repo"
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baseBranch := "base"
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// Add head repo remote.
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addCacheRepo := func(staging, cache string) error {
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p := filepath.Join(staging, ".git", "objects", "info", "alternates")
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f, err := os.OpenFile(p, os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0600)
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if err != nil {
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log.Error("Could not create .git/objects/info/alternates file in %s: %v", staging, err)
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return err
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}
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defer f.Close()
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data := filepath.Join(cache, "objects")
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if _, err := fmt.Fprintln(f, data); err != nil {
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log.Error("Could not write to .git/objects/info/alternates file in %s: %v", staging, err)
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return err
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}
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return nil
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}
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if err := addCacheRepo(tmpBasePath, baseRepoPath); err != nil {
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log.Error("Unable to add base repository to temporary repo [%s -> %s]: %v", pr.BaseRepo.FullName(), tmpBasePath, err)
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if err := models.RemoveTemporaryPath(tmpBasePath); err != nil {
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log.Error("CreateTempRepo: RemoveTemporaryPath: %s", err)
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}
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return "", fmt.Errorf("Unable to add base repository to temporary repo [%s -> tmpBasePath]: %v", pr.BaseRepo.FullName(), err)
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}
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var outbuf, errbuf strings.Builder
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if err := git.NewCommand("remote", "add", "-t", pr.BaseBranch, "-m", pr.BaseBranch, "origin", baseRepoPath).RunInDirPipeline(tmpBasePath, &outbuf, &errbuf); err != nil {
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log.Error("Unable to add base repository as origin [%s -> %s]: %v\n%s\n%s", pr.BaseRepo.FullName(), tmpBasePath, err, outbuf.String(), errbuf.String())
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if err := models.RemoveTemporaryPath(tmpBasePath); err != nil {
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log.Error("CreateTempRepo: RemoveTemporaryPath: %s", err)
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}
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return "", fmt.Errorf("Unable to add base repository as origin [%s -> tmpBasePath]: %v\n%s\n%s", pr.BaseRepo.FullName(), err, outbuf.String(), errbuf.String())
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}
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outbuf.Reset()
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errbuf.Reset()
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if err := git.NewCommand("fetch", "origin", "--no-tags", "--", pr.BaseBranch+":"+baseBranch, pr.BaseBranch+":original_"+baseBranch).RunInDirPipeline(tmpBasePath, &outbuf, &errbuf); err != nil {
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log.Error("Unable to fetch origin base branch [%s:%s -> base, original_base in %s]: %v:\n%s\n%s", pr.BaseRepo.FullName(), pr.BaseBranch, tmpBasePath, err, outbuf.String(), errbuf.String())
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if err := models.RemoveTemporaryPath(tmpBasePath); err != nil {
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log.Error("CreateTempRepo: RemoveTemporaryPath: %s", err)
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}
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return "", fmt.Errorf("Unable to fetch origin base branch [%s:%s -> base, original_base in tmpBasePath]: %v\n%s\n%s", pr.BaseRepo.FullName(), pr.BaseBranch, err, outbuf.String(), errbuf.String())
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}
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outbuf.Reset()
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errbuf.Reset()
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if err := git.NewCommand("symbolic-ref", "HEAD", git.BranchPrefix+baseBranch).RunInDirPipeline(tmpBasePath, &outbuf, &errbuf); err != nil {
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log.Error("Unable to set HEAD as base branch [%s]: %v\n%s\n%s", tmpBasePath, err, outbuf.String(), errbuf.String())
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if err := models.RemoveTemporaryPath(tmpBasePath); err != nil {
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log.Error("CreateTempRepo: RemoveTemporaryPath: %s", err)
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}
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return "", fmt.Errorf("Unable to set HEAD as base branch [tmpBasePath]: %v\n%s\n%s", err, outbuf.String(), errbuf.String())
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}
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outbuf.Reset()
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errbuf.Reset()
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if err := addCacheRepo(tmpBasePath, headRepoPath); err != nil {
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log.Error("Unable to add head repository to temporary repo [%s -> %s]: %v", pr.HeadRepo.FullName(), tmpBasePath, err)
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if err := models.RemoveTemporaryPath(tmpBasePath); err != nil {
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log.Error("CreateTempRepo: RemoveTemporaryPath: %s", err)
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}
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return "", fmt.Errorf("Unable to head base repository to temporary repo [%s -> tmpBasePath]: %v", pr.HeadRepo.FullName(), err)
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}
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if err := git.NewCommand("remote", "add", remoteRepoName, headRepoPath).RunInDirPipeline(tmpBasePath, &outbuf, &errbuf); err != nil {
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log.Error("Unable to add head repository as head_repo [%s -> %s]: %v\n%s\n%s", pr.HeadRepo.FullName(), tmpBasePath, err, outbuf.String(), errbuf.String())
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if err := models.RemoveTemporaryPath(tmpBasePath); err != nil {
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log.Error("CreateTempRepo: RemoveTemporaryPath: %s", err)
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}
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return "", fmt.Errorf("Unable to add head repository as head_repo [%s -> tmpBasePath]: %v\n%s\n%s", pr.HeadRepo.FullName(), err, outbuf.String(), errbuf.String())
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}
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outbuf.Reset()
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errbuf.Reset()
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trackingBranch := "tracking"
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// Fetch head branch
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var headBranch string
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if pr.Flow == models.PullRequestFlowGithub {
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headBranch = git.BranchPrefix + pr.HeadBranch
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} else if len(pr.HeadCommitID) == 40 { // for not created pull request
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headBranch = pr.HeadCommitID
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} else {
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headBranch = pr.GetGitRefName()
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}
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if err := git.NewCommand("fetch", "--no-tags", remoteRepoName, headBranch+":"+trackingBranch).RunInDirPipeline(tmpBasePath, &outbuf, &errbuf); err != nil {
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if err := models.RemoveTemporaryPath(tmpBasePath); err != nil {
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log.Error("CreateTempRepo: RemoveTemporaryPath: %s", err)
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}
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if !git.IsBranchExist(pr.HeadRepo.RepoPath(), pr.HeadBranch) {
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return "", models.ErrBranchDoesNotExist{
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BranchName: pr.HeadBranch,
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}
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}
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log.Error("Unable to fetch head_repo head branch [%s:%s -> tracking in %s]: %v:\n%s\n%s", pr.HeadRepo.FullName(), pr.HeadBranch, tmpBasePath, err, outbuf.String(), errbuf.String())
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return "", fmt.Errorf("Unable to fetch head_repo head branch [%s:%s -> tracking in tmpBasePath]: %v\n%s\n%s", pr.HeadRepo.FullName(), headBranch, err, outbuf.String(), errbuf.String())
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}
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outbuf.Reset()
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errbuf.Reset()
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return tmpBasePath, nil
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}
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