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Restore functionality for early gits (#7775) (#8476)

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* Change tests to make it possible to run TestGit with 1.7.2

* Make merge run on 1.7.2

* Fix tracking and staging branch name problem

* Ensure that git 1.7.2 works on tests

* ensure that there is no chance for conflicts

* Fix-up missing merge issues

* Final rm

* Ensure LFS filters run on the tests

* Do not sign commits from temp repo

* Apply suggestions from code review

* Update modules/repofiles/temp_repo.go
This commit is contained in:
zeripath 2019-10-13 05:40:13 +01:00 • committed by Lunny Xiao
parent 80b50afe1f
commit 5c3863c319
12 changed files with 223 additions and 66 deletions
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77
modules/pull/merge.go
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@ -11,7 +11,6 @@ import (
"fmt"
"io/ioutil"
"os"
"path"
"path/filepath"
"strings"
@ -22,6 +21,7 @@ import (
"code.gitea.io/gitea/modules/setting"
api "code.gitea.io/gitea/modules/structs"
"code.gitea.io/gitea/modules/util"
"github.com/mcuadros/go-version"
)
// Merge merges pull request to base repository.
@ -66,20 +66,17 @@ func Merge(pr *models.PullRequest, doer *models.User, baseGitRepo *git.Repositor
headRepoPath := models.RepoPath(pr.HeadUserName, pr.HeadRepo.Name)
if err := git.Clone(baseGitRepo.Path, tmpBasePath, git.CloneRepoOptions{
Shared: true,
NoCheckout: true,
Branch: pr.BaseBranch,
}); err != nil {
return fmt.Errorf("git clone: %v", err)
if err := git.InitRepository(tmpBasePath, false); err != nil {
return fmt.Errorf("git init: %v", err)
}
remoteRepoName := "head_repo"
baseBranch := "base"
// Add head repo remote.
addCacheRepo := func(staging, cache string) error {
p := filepath.Join(staging, ".git", "objects", "info", "alternates")
f, err := os.OpenFile(p, os.O_APPEND|os.O_WRONLY, 0600)
f, err := os.OpenFile(p, os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0600)
if err != nil {
return err
}
@ -91,25 +88,41 @@ func Merge(pr *models.PullRequest, doer *models.User, baseGitRepo *git.Repositor
return nil
}
if err := addCacheRepo(tmpBasePath, headRepoPath); err != nil {
if err := addCacheRepo(tmpBasePath, baseGitRepo.Path); err != nil {
return fmt.Errorf("addCacheRepo [%s -> %s]: %v", headRepoPath, tmpBasePath, err)
}
var errbuf strings.Builder
if err := git.NewCommand("remote", "add", "-t", pr.BaseBranch, "-m", pr.BaseBranch, "origin", baseGitRepo.Path).RunInDirPipeline(tmpBasePath, nil, &errbuf); err != nil {
return fmt.Errorf("git remote add [%s -> %s]: %s", baseGitRepo.Path, tmpBasePath, errbuf.String())
}
if err := git.NewCommand("fetch", "origin", "--no-tags", pr.BaseBranch+":"+baseBranch, pr.BaseBranch+":original_"+baseBranch).RunInDirPipeline(tmpBasePath, nil, &errbuf); err != nil {
return fmt.Errorf("git fetch [%s -> %s]: %s", headRepoPath, tmpBasePath, errbuf.String())
}
if err := git.NewCommand("symbolic-ref", "HEAD", git.BranchPrefix+baseBranch).RunInDirPipeline(tmpBasePath, nil, &errbuf); err != nil {
return fmt.Errorf("git symbolic-ref HEAD base [%s]: %s", tmpBasePath, errbuf.String())
}
if err := addCacheRepo(tmpBasePath, headRepoPath); err != nil {
return fmt.Errorf("addCacheRepo [%s -> %s]: %v", headRepoPath, tmpBasePath, err)
}
if err := git.NewCommand("remote", "add", remoteRepoName, headRepoPath).RunInDirPipeline(tmpBasePath, nil, &errbuf); err != nil {
return fmt.Errorf("git remote add [%s -> %s]: %s", headRepoPath, tmpBasePath, errbuf.String())
}
trackingBranch := "tracking"
// Fetch head branch
if err := git.NewCommand("fetch", remoteRepoName, fmt.Sprintf("%s:refs/remotes/%s/%s", pr.HeadBranch, remoteRepoName, pr.HeadBranch)).RunInDirPipeline(tmpBasePath, nil, &errbuf); err != nil {
if err := git.NewCommand("fetch", "--no-tags", remoteRepoName, pr.HeadBranch+":"+trackingBranch).RunInDirPipeline(tmpBasePath, nil, &errbuf); err != nil {
return fmt.Errorf("git fetch [%s -> %s]: %s", headRepoPath, tmpBasePath, errbuf.String())
}
trackingBranch := path.Join(remoteRepoName, pr.HeadBranch)
stagingBranch := fmt.Sprintf("%s_%s", remoteRepoName, pr.HeadBranch)
stagingBranch := "staging"
// Enable sparse-checkout
sparseCheckoutList, err := getDiffTree(tmpBasePath, pr.BaseBranch, trackingBranch)
sparseCheckoutList, err := getDiffTree(tmpBasePath, baseBranch, trackingBranch)
if err != nil {
return fmt.Errorf("getDiffTree: %v", err)
}
@ -123,21 +136,37 @@ func Merge(pr *models.PullRequest, doer *models.User, baseGitRepo *git.Repositor
return fmt.Errorf("Writing sparse-checkout file to %s: %v", sparseCheckoutListPath, err)
}
gitConfigCommand := func() func() *git.Command {
binVersion, err := git.BinVersion()
if err != nil {
log.Fatal("Error retrieving git version: %v", err)
}
if version.Compare(binVersion, "1.8.0", ">=") {
return func() *git.Command {
return git.NewCommand("config", "--local")
}
}
return func() *git.Command {
return git.NewCommand("config")
}
}()
// Switch off LFS process (set required, clean and smudge here also)
if err := git.NewCommand("config", "--local", "filter.lfs.process", "").RunInDirPipeline(tmpBasePath, nil, &errbuf); err != nil {
if err := gitConfigCommand().AddArguments("filter.lfs.process", "").RunInDirPipeline(tmpBasePath, nil, &errbuf); err != nil {
return fmt.Errorf("git config [filter.lfs.process -> <> ]: %v", errbuf.String())
}
if err := git.NewCommand("config", "--local", "filter.lfs.required", "false").RunInDirPipeline(tmpBasePath, nil, &errbuf); err != nil {
if err := gitConfigCommand().AddArguments("filter.lfs.required", "false").RunInDirPipeline(tmpBasePath, nil, &errbuf); err != nil {
return fmt.Errorf("git config [filter.lfs.required -> <false> ]: %v", errbuf.String())
}
if err := git.NewCommand("config", "--local", "filter.lfs.clean", "").RunInDirPipeline(tmpBasePath, nil, &errbuf); err != nil {
if err := gitConfigCommand().AddArguments("filter.lfs.clean", "").RunInDirPipeline(tmpBasePath, nil, &errbuf); err != nil {
return fmt.Errorf("git config [filter.lfs.clean -> <> ]: %v", errbuf.String())
}
if err := git.NewCommand("config", "--local", "filter.lfs.smudge", "").RunInDirPipeline(tmpBasePath, nil, &errbuf); err != nil {
if err := gitConfigCommand().AddArguments("filter.lfs.smudge", "").RunInDirPipeline(tmpBasePath, nil, &errbuf); err != nil {
return fmt.Errorf("git config [filter.lfs.smudge -> <> ]: %v", errbuf.String())
}
if err := git.NewCommand("config", "--local", "core.sparseCheckout", "true").RunInDirPipeline(tmpBasePath, nil, &errbuf); err != nil {
if err := gitConfigCommand().AddArguments("core.sparseCheckout", "true").RunInDirPipeline(tmpBasePath, nil, &errbuf); err != nil {
return fmt.Errorf("git config [core.sparsecheckout -> true]: %v", errbuf.String())
}
@ -163,11 +192,11 @@ func Merge(pr *models.PullRequest, doer *models.User, baseGitRepo *git.Repositor
return fmt.Errorf("git checkout: %s", errbuf.String())
}
// Rebase before merging
if err := git.NewCommand("rebase", "-q", pr.BaseBranch).RunInDirPipeline(tmpBasePath, nil, &errbuf); err != nil {
if err := git.NewCommand("rebase", "-q", baseBranch).RunInDirPipeline(tmpBasePath, nil, &errbuf); err != nil {
return fmt.Errorf("git rebase [%s -> %s]: %s", headRepoPath, tmpBasePath, errbuf.String())
}
// Checkout base branch again
if err := git.NewCommand("checkout", pr.BaseBranch).RunInDirPipeline(tmpBasePath, nil, &errbuf); err != nil {
if err := git.NewCommand("checkout", baseBranch).RunInDirPipeline(tmpBasePath, nil, &errbuf); err != nil {
return fmt.Errorf("git checkout: %s", errbuf.String())
}
// Merge fast forward
@ -180,11 +209,11 @@ func Merge(pr *models.PullRequest, doer *models.User, baseGitRepo *git.Repositor
return fmt.Errorf("git checkout: %s", errbuf.String())
}
// Rebase before merging
if err := git.NewCommand("rebase", "-q", pr.BaseBranch).RunInDirPipeline(tmpBasePath, nil, &errbuf); err != nil {
if err := git.NewCommand("rebase", "-q", baseBranch).RunInDirPipeline(tmpBasePath, nil, &errbuf); err != nil {
return fmt.Errorf("git rebase [%s -> %s]: %s", headRepoPath, tmpBasePath, errbuf.String())
}
// Checkout base branch again
if err := git.NewCommand("checkout", pr.BaseBranch).RunInDirPipeline(tmpBasePath, nil, &errbuf); err != nil {
if err := git.NewCommand("checkout", baseBranch).RunInDirPipeline(tmpBasePath, nil, &errbuf); err != nil {
return fmt.Errorf("git checkout: %s", errbuf.String())
}
// Prepare merge with commit
@ -216,7 +245,7 @@ func Merge(pr *models.PullRequest, doer *models.User, baseGitRepo *git.Repositor
if err != nil {
return fmt.Errorf("Failed to get full commit id for HEAD: %v", err)
}
mergeBaseSHA, err := git.GetFullCommitID(tmpBasePath, "origin/"+pr.BaseBranch)
mergeBaseSHA, err := git.GetFullCommitID(tmpBasePath, "original_"+baseBranch)
if err != nil {
return fmt.Errorf("Failed to get full commit id for origin/%s: %v", pr.BaseBranch, err)
}
@ -249,7 +278,7 @@ func Merge(pr *models.PullRequest, doer *models.User, baseGitRepo *git.Repositor
)
// Push back to upstream.
if err := git.NewCommand("push", "origin", pr.BaseBranch).RunInDirTimeoutEnvPipeline(env, -1, tmpBasePath, nil, &errbuf); err != nil {
if err := git.NewCommand("push", "origin", baseBranch+":"+pr.BaseBranch).RunInDirTimeoutEnvPipeline(env, -1, tmpBasePath, nil, &errbuf); err != nil {
return fmt.Errorf("git push: %s", errbuf.String())
}