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Various Merge Base fixes (#10786) 

* Fix broken merge base migration v128 for merged PR

* Allow PRs with deleted base branches to still show diff

* as per @lunny

Co-authored-by: Lauris BH <lauris@nix.lv>
This commit is contained in:
zeripath 2020-03-31 14:42:44 +01:00 committed by GitHub
parent 73cf0e2614
commit 2c25e75dca
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
4 changed files with 148 additions and 8 deletions
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2
models/migrations/migrations.go
View File

@ -200,6 +200,8 @@ var migrations = []Migration{
NewMigration("Add Branch Protection Protected Files Column", addBranchProtectionProtectedFilesColumn),
// v133 -> v134
NewMigration("Add EmailHash Table", addEmailHashTable),
// v134 -> v135
NewMigration("Refix merge base for merged pull requests", refixMergeBase),
}
// Migrate database to current version

20
models/migrations/v128.go
View File

@ -53,7 +53,7 @@ func fixMergeBase(x *xorm.Engine) error {
break
}
i += 50
i += len(prs)
for _, pr := range prs {
baseRepo := &Repository{ID: pr.BaseRepoID}
has, err := x.Table("repository").Get(baseRepo)
@ -81,10 +81,22 @@ func fixMergeBase(x *xorm.Engine) error {
}
}
} else {
var err error
pr.MergeBase, err = git.NewCommand("merge-base", "--", pr.MergedCommitID+"^", gitRefName).RunInDir(repoPath)
parentsString, err := git.NewCommand("rev-list", "--parents", "-n", "1", pr.MergedCommitID).RunInDir(repoPath)
if err != nil {
log.Error("Unable to get merge base for merged PR ID %d, Index %d in %s/%s. Error: %", pr.ID, pr.Index, baseRepo.OwnerName, baseRepo.Name, err)
log.Error("Unable to get parents for merged PR ID %d, Index %d in %s/%s. Error: %v", pr.ID, pr.Index, baseRepo.OwnerName, baseRepo.Name, err)
continue
}
parents := strings.Split(strings.TrimSpace(parentsString), " ")
if len(parents) < 2 {
continue
}
args := append([]string{"merge-base", "--"}, parents[1:]...)
args = append(args, gitRefName)
pr.MergeBase, err = git.NewCommand(args...).RunInDir(repoPath)
if err != nil {
log.Error("Unable to get merge base for merged PR ID %d, Index %d in %s/%s. Error: %v", pr.ID, pr.Index, baseRepo.OwnerName, baseRepo.Name, err)
continue
}
}

96
models/migrations/v134.go Normal file
View File

@ -0,0 +1,96 @@
// Copyright 2020 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 migrations
import (
"fmt"
"path/filepath"
"strings"
"code.gitea.io/gitea/modules/git"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/setting"
"xorm.io/xorm"
)
func refixMergeBase(x *xorm.Engine) error {
type Repository struct {
ID int64 `xorm:"pk autoincr"`
OwnerID int64 `xorm:"UNIQUE(s) index"`
OwnerName string
LowerName string `xorm:"UNIQUE(s) INDEX NOT NULL"`
Name string `xorm:"INDEX NOT NULL"`
}
type PullRequest struct {
ID int64 `xorm:"pk autoincr"`
Index int64
HeadRepoID int64 `xorm:"INDEX"`
BaseRepoID int64 `xorm:"INDEX"`
HeadBranch string
BaseBranch string
MergeBase string `xorm:"VARCHAR(40)"`
HasMerged bool `xorm:"INDEX"`
MergedCommitID string `xorm:"VARCHAR(40)"`
}
var limit = setting.Database.IterateBufferSize
if limit <= 0 {
limit = 50
}
i := 0
for {
prs := make([]PullRequest, 0, 50)
if err := x.Limit(limit, i).Asc("id").Where("has_merged = ?", true).Find(&prs); err != nil {
return fmt.Errorf("Find: %v", err)
}
if len(prs) == 0 {
break
}
i += len(prs)
for _, pr := range prs {
baseRepo := &Repository{ID: pr.BaseRepoID}
has, err := x.Table("repository").Get(baseRepo)
if err != nil {
return fmt.Errorf("Unable to get base repo %d %v", pr.BaseRepoID, err)
}
if !has {
log.Error("Missing base repo with id %d for PR ID %d", pr.BaseRepoID, pr.ID)
continue
}
userPath := filepath.Join(setting.RepoRootPath, strings.ToLower(baseRepo.OwnerName))
repoPath := filepath.Join(userPath, strings.ToLower(baseRepo.Name)+".git")
gitRefName := fmt.Sprintf("refs/pull/%d/head", pr.Index)
parentsString, err := git.NewCommand("rev-list", "--parents", "-n", "1", pr.MergedCommitID).RunInDir(repoPath)
if err != nil {
log.Error("Unable to get parents for merged PR ID %d, Index %d in %s/%s. Error: %v", pr.ID, pr.Index, baseRepo.OwnerName, baseRepo.Name, err)
continue
}
parents := strings.Split(strings.TrimSpace(parentsString), " ")
if len(parents) < 3 {
continue
}
// we should recalculate
args := append([]string{"merge-base", "--"}, parents[1:]...)
args = append(args, gitRefName)
pr.MergeBase, err = git.NewCommand(args...).RunInDir(repoPath)
if err != nil {
log.Error("Unable to get merge base for merged PR ID %d, Index %d in %s/%s. Error: %v", pr.ID, pr.Index, baseRepo.OwnerName, baseRepo.Name, err)
continue
}
pr.MergeBase = strings.TrimSpace(pr.MergeBase)
x.ID(pr.ID).Cols("merge_base").Update(pr)
}
}
return nil
}

32
routers/repo/pull.go
View File

@ -308,7 +308,6 @@ func PrepareMergedViewPullInfo(ctx *context.Context, issue *models.Issue) *git.C
compareInfo, err := ctx.Repo.GitRepo.GetCompareInfo(ctx.Repo.Repository.RepoPath(),
pull.MergeBase, pull.GetGitRefName())
if err != nil {
if strings.Contains(err.Error(), "fatal: Not a valid object name") {
ctx.Data["IsPullRequestBroken"] = true
@ -360,11 +359,42 @@ func PrepareViewPullInfo(ctx *context.Context, issue *models.Issue) *git.Compare
ctx.Data["IsPullRequestBroken"] = true
ctx.Data["BaseTarget"] = pull.BaseBranch
ctx.Data["HeadTarget"] = pull.HeadBranch
sha, err := baseGitRepo.GetRefCommitID(pull.GetGitRefName())
if err != nil {
ctx.ServerError(fmt.Sprintf("GetRefCommitID(%s)", pull.GetGitRefName()), err)
return nil
}
commitStatuses, err := models.GetLatestCommitStatus(repo, sha, 0)
if err != nil {
ctx.ServerError("GetLatestCommitStatus", err)
return nil
}
if len(commitStatuses) > 0 {
ctx.Data["LatestCommitStatuses"] = commitStatuses
ctx.Data["LatestCommitStatus"] = models.CalcCommitStatus(commitStatuses)
}
compareInfo, err := baseGitRepo.GetCompareInfo(pull.BaseRepo.RepoPath(),
pull.MergeBase, pull.GetGitRefName())
if err != nil {
if strings.Contains(err.Error(), "fatal: Not a valid object name") {
ctx.Data["IsPullRequestBroken"] = true
ctx.Data["BaseTarget"] = pull.BaseBranch
ctx.Data["NumCommits"] = 0
ctx.Data["NumFiles"] = 0
return nil
}
ctx.ServerError("GetCompareInfo", err)
return nil
}
ctx.Data["NumCommits"] = compareInfo.Commits.Len()
ctx.Data["NumFiles"] = compareInfo.NumFiles
return compareInfo
}
var headBranchExist bool
var headBranchSha string
// HeadRepo may be missing