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fix: prevent pull requests from being merged multiple times (#8842)
Reviewed-on: https://codeberg.org/forgejo/forgejo/pulls/8842 Reviewed-by: Gusted <gusted@noreply.codeberg.org>
This commit is contained in:
commit
68295b2e00
6 changed files with 82 additions and 4 deletions
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@ -44,6 +44,7 @@
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"relativetime.2months": "two months ago",
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"relativetime.1year": "last year",
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"relativetime.2years": "two years ago",
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"repo.pulls.already_merged": "Merge failed: This pull request has already been merged.",
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"repo.pulls.merged_title_desc": {
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"one": "merged %[1]d commit from <code>%[2]s</code> into <code>%[3]s</code> %[4]s",
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"other": "merged %[1]d commits from <code>%[2]s</code> into <code>%[3]s</code> %[4]s"
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@ -1016,6 +1016,9 @@ func MergePullRequest(ctx *context.APIContext) {
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} else if models.IsErrMergeUnrelatedHistories(err) {
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conflictError := err.(models.ErrMergeUnrelatedHistories)
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ctx.JSON(http.StatusConflict, conflictError)
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} else if models.IsErrPullRequestHasMerged(err) {
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conflictError := err.(models.ErrPullRequestHasMerged)
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ctx.JSON(http.StatusConflict, conflictError)
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} else if git.IsErrPushOutOfDate(err) {
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ctx.Error(http.StatusConflict, "Merge", "merge push out of date")
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} else if models.IsErrSHADoesNotMatch(err) {
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@ -1445,6 +1445,10 @@ func MergePullRequest(ctx *context.Context) {
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log.Debug("MergeUnrelatedHistories error: %v", err)
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ctx.Flash.Error(ctx.Tr("repo.pulls.unrelated_histories"))
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ctx.JSONRedirect(issue.Link())
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} else if models.IsErrPullRequestHasMerged(err) {
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log.Debug("MergePullRequestHasMerged error: %v", err)
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ctx.Flash.Error(ctx.Tr("repo.pulls.already_merged"))
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ctx.JSONRedirect(issue.Link())
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} else if git.IsErrPushOutOfDate(err) {
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log.Debug("MergePushOutOfDate error: %v", err)
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ctx.Flash.Error(ctx.Tr("repo.pulls.merge_out_of_date"))
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@ -239,7 +239,30 @@ func AddCommitMessageTrailer(message, tailerKey, tailerValue string) string {
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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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func Merge(ctx context.Context, pr *issues_model.PullRequest, doer *user_model.User, baseGitRepo *git.Repository, mergeStyle repo_model.MergeStyle, expectedHeadCommitID, message string, wasAutoMerged bool) error {
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if err := pr.LoadBaseRepo(ctx); err != nil {
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pullWorkingPool.CheckIn(fmt.Sprint(pr.ID))
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defer pullWorkingPool.CheckOut(fmt.Sprint(pr.ID))
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pr, err := issues_model.GetPullRequestByID(ctx, pr.ID)
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if err != nil {
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log.Error("Unable to load pull request itself: %v", err)
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return fmt.Errorf("unable to load pull request itself: %w", err)
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}
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if pr.HasMerged {
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return models.ErrPullRequestHasMerged{
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ID: pr.ID,
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IssueID: pr.IssueID,
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HeadRepoID: pr.HeadRepoID,
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BaseRepoID: pr.BaseRepoID,
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HeadBranch: pr.HeadBranch,
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BaseBranch: pr.BaseBranch,
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}
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}
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if err := pr.LoadIssue(ctx); err != nil {
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log.Error("Unable to load issue: %v", err)
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return fmt.Errorf("unable to load issue: %w", err)
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} else if err := pr.LoadBaseRepo(ctx); err != nil {
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log.Error("Unable to load base repo: %v", err)
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return fmt.Errorf("unable to load base repo: %w", err)
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} else if err := pr.LoadHeadRepo(ctx); err != nil {
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@ -247,9 +270,6 @@ func Merge(ctx context.Context, pr *issues_model.PullRequest, doer *user_model.U
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return fmt.Errorf("unable to load head repo: %w", err)
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}
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pullWorkingPool.CheckIn(fmt.Sprint(pr.ID))
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defer pullWorkingPool.CheckOut(fmt.Sprint(pr.ID))
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prUnit, err := pr.BaseRepo.GetUnit(ctx, unit.TypePullRequests)
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if err != nil {
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log.Error("pr.BaseRepo.GetUnit(unit.TypePullRequests): %v", err)
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@ -9,7 +9,12 @@ import (
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"strings"
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"testing"
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"forgejo.org/models"
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issues_model "forgejo.org/models/issues"
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repo_model "forgejo.org/models/repo"
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"forgejo.org/models/unittest"
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user_model "forgejo.org/models/user"
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"forgejo.org/modules/gitrepo"
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"forgejo.org/modules/setting"
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"forgejo.org/modules/test"
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@ -146,3 +151,29 @@ func TestLoadMergeMessageTemplates(t *testing.T) {
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require.NoError(t, LoadMergeMessageTemplates())
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assert.Empty(t, mergeMessageTemplates)
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}
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func TestMergeMergedPR(t *testing.T) {
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require.NoError(t, unittest.PrepareTestDatabase())
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pr := unittest.AssertExistsAndLoadBean(t, &issues_model.PullRequest{ID: 1})
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doer := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 2})
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require.NoError(t, pr.LoadBaseRepo(t.Context()))
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gitRepo, err := gitrepo.OpenRepository(t.Context(), pr.BaseRepo)
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require.NoError(t, err)
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defer gitRepo.Close()
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assert.True(t, pr.HasMerged)
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pr.HasMerged = false
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err = Merge(t.Context(), pr, doer, gitRepo, repo_model.MergeStyleRebase, "", "I should not exist", false)
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require.Error(t, err)
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assert.True(t, models.IsErrPullRequestHasMerged(err))
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if mergeErr, ok := err.(models.ErrPullRequestHasMerged); ok {
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assert.Equal(t, pr.ID, mergeErr.ID)
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assert.Equal(t, pr.IssueID, mergeErr.IssueID)
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assert.Equal(t, pr.HeadBranch, mergeErr.HeadBranch)
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assert.Equal(t, pr.BaseBranch, mergeErr.BaseBranch)
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}
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}
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@ -495,6 +495,25 @@ func CreateDeclarativeRepo(t *testing.T, owner *user_model.User, name string, en
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}
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if enabledUnits != nil {
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opts.EnabledUnits = optional.Some(enabledUnits)
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for _, unitType := range enabledUnits {
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if unitType == unit_model.TypePullRequests {
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opts.UnitConfig = optional.Some(map[unit_model.Type]convert.Conversion{
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unit_model.TypePullRequests: &repo_model.PullRequestsConfig{
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AllowMerge: true,
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AllowRebase: true,
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AllowRebaseMerge: true,
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AllowSquash: true,
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AllowFastForwardOnly: true,
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AllowManualMerge: true,
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AllowRebaseUpdate: true,
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DefaultMergeStyle: repo_model.MergeStyleMerge,
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DefaultUpdateStyle: repo_model.UpdateStyleMerge,
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},
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})
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break
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}
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}
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}
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if disabledUnits != nil {
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opts.DisabledUnits = optional.Some(disabledUnits)
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