add legacyhandler back (deleted it in 766 oops)

server/legacy/lyft/gateway/events_controller.go

@@ -60,9 +60,13 @@ func NewVCSEventsController(
 	clientCreator githubapp.ClientCreator,
 	defaultTFVersion string,
 ) *VCSEventsController {
+	legacyHandler := &gateway_handlers.LegacyPullHandler{
+		Logger:           logger,
+		VCSStatusUpdater: vcsStatusUpdater,
+	}
 	prSignaler := &pr.WorkflowSignaler{TemporalClient: temporalClient, DefaultTFVersion: defaultTFVersion}
 	prRequirementChecker := requirement.NewPRAggregate(globalCfg)
-	modifiedPullHandler := gateway_handlers.NewModifiedPullHandler(logger, asyncScheduler, rootConfigBuilder, globalCfg, prRequirementChecker, prSignaler)
+	modifiedPullHandler := gateway_handlers.NewModifiedPullHandler(logger, asyncScheduler, rootConfigBuilder, globalCfg, prRequirementChecker, prSignaler, legacyHandler)
 	closedPullHandler := &gateway_handlers.ClosedPullRequestHandler{
 		Logger:          logger,
 		PRCloseSignaler: prSignaler,

server/neptune/gateway/event/legacy_pull_handler.go

@@ -0,0 +1,36 @@
+package event
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/runatlantis/atlantis/server/config/valid"
+	"github.com/runatlantis/atlantis/server/legacy/events/command"
+	"github.com/runatlantis/atlantis/server/legacy/http"
+	"github.com/runatlantis/atlantis/server/logging"
+	"github.com/runatlantis/atlantis/server/models"
+)
+
+const PlatformModeApplyStatusMessage = "THIS IS A LEGACY STATUS CHECK AND IS NOT RELEVANT PLEASE LOOK AT atlantis/deploy status checks"
+
+type vcsStatusUpdater interface {
+	UpdateCombined(ctx context.Context, repo models.Repo, pull models.PullRequest, status models.VCSStatus, cmdName fmt.Stringer, statusID string, output string) (string, error)
+	UpdateCombinedCount(ctx context.Context, repo models.Repo, pull models.PullRequest, status models.VCSStatus, cmdName fmt.Stringer, numSuccess int, numTotal int, statusID string) (string, error)
+}
+
+type LegacyPullHandler struct {
+	VCSStatusUpdater vcsStatusUpdater
+	Logger           logging.Logger
+}
+
+func (l *LegacyPullHandler) Handle(ctx context.Context, request *http.BufferedRequest, event PullRequest, allRoots []*valid.MergedProjectCfg) error {
+	// mark legacy statuses as successful if there are no roots in general
+	// this is processed here to make it easy to clean up when we deprecate legacy mode
+	if len(allRoots) == 0 {
+		if _, statusErr := l.VCSStatusUpdater.UpdateCombinedCount(ctx, event.Pull.HeadRepo, event.Pull, models.SuccessVCSStatus, command.Plan, 0, 0, ""); statusErr != nil {
+			l.Logger.WarnContext(ctx, fmt.Sprintf("unable to update commit status: %s", statusErr))
+		}
+		return nil
+	}
+	return nil
+}

server/neptune/gateway/event/modified_pull_request_handler.go

@@ -19,6 +19,10 @@ import (
 	"github.com/runatlantis/atlantis/server/models"
 )
 
+type legacyHandler interface {
+	Handle(ctx context.Context, request *http.BufferedRequest, event PullRequest, allRoots []*valid.MergedProjectCfg) error
+}
+
 type prSignaler interface {
 	SignalWithStartWorkflow(ctx context.Context, rootCfgs []*valid.MergedProjectCfg, prRequest pr.Request) (client.WorkflowRun, error)
 }
@@ -29,6 +33,7 @@ type ModifiedPullHandler struct {
 	RootConfigBuilder  rootConfigBuilder
 	GlobalCfg          valid.GlobalCfg
 	RequirementChecker requirementChecker
+	LegacyHandler      legacyHandler
 	PRSignaler         prSignaler
 }
 
@@ -41,13 +46,14 @@ type PullRequest struct {
 	InstallationToken int64
 }
 
-func NewModifiedPullHandler(logger logging.Logger, scheduler scheduler, rootConfigBuilder rootConfigBuilder, globalCfg valid.GlobalCfg, requirementChecker requirementChecker, prSignaler prSignaler) *ModifiedPullHandler {
+func NewModifiedPullHandler(logger logging.Logger, scheduler scheduler, rootConfigBuilder rootConfigBuilder, globalCfg valid.GlobalCfg, requirementChecker requirementChecker, prSignaler prSignaler, legacyHandler legacyHandler) *ModifiedPullHandler {
 	return &ModifiedPullHandler{
 		Logger:             logger,
 		Scheduler:          scheduler,
 		RootConfigBuilder:  rootConfigBuilder,
 		GlobalCfg:          globalCfg,
 		RequirementChecker: requirementChecker,
+		LegacyHandler:      legacyHandler,
 		PRSignaler:         prSignaler,
 	}
 }
@@ -97,6 +103,7 @@ func (p *ModifiedPullHandler) handle(ctx context.Context, request *http.Buffered
 	}
 
 	fxns := []func(ctx context.Context, request *http.BufferedRequest, event PullRequest, allRoots []*valid.MergedProjectCfg) error{
+		p.LegacyHandler.Handle,
 		p.handlePlatformMode,
 	}
 	var combinedErrors *multierror.Error

server/neptune/gateway/event/modified_pull_request_handler_test.go

@@ -61,6 +61,10 @@ func TestModifiedPullHandler_Handle_SignalerFailure(t *testing.T) {
 			expectedT:      t,
 			rootConfigs:    []*valid.MergedProjectCfg{root},
 		},
+		LegacyHandler: &mockLegacyHandler{
+			expectedAllRoots: []*valid.MergedProjectCfg{root},
+			expectedT:        t,
+		},
 		PRSignaler: &mockPRSignaler{
 			error:             assert.AnError,
 			expectedRoots:     []*valid.MergedProjectCfg{root},
@@ -106,6 +110,11 @@ func TestModifiedPullHandler_Handle_BranchStrategy(t *testing.T) {
 	pull := event.PullRequest{
 		Pull: pullRequest,
 	}
+	legacyHandler := &mockLegacyHandler{
+		expectedEvent:    pull,
+		expectedAllRoots: []*valid.MergedProjectCfg{legacyRoot},
+		expectedT:        t,
+	}
 	prRequest := pr.Request{
 		Revision:          "sha",
 		Repo:              testRepo,
@@ -134,10 +143,12 @@ func TestModifiedPullHandler_Handle_BranchStrategy(t *testing.T) {
 			expectedT:          t,
 			rootConfigs:        []*valid.MergedProjectCfg{legacyRoot},
 		},
-		PRSignaler: signaler,
+		LegacyHandler: legacyHandler,
+		PRSignaler:    signaler,
 	}
 	err := pullHandler.Handle(context.Background(), &http.BufferedRequest{}, pull)
 	assert.NoError(t, err)
+	assert.True(t, legacyHandler.called)
 	assert.True(t, signaler.called)
 }
 
@@ -185,6 +196,11 @@ func TestModifiedPullHandler_Handle_MergeStrategy(t *testing.T) {
 	pr := event.PullRequest{
 		Pull: pullRequest,
 	}
+	legacyHandler := &mockLegacyHandler{
+		expectedEvent:    pr,
+		expectedAllRoots: []*valid.MergedProjectCfg{root},
+		expectedT:        t,
+	}
 	pullHandler := event.ModifiedPullHandler{
 		Logger:             logger,
 		Scheduler:          &sync.SynchronousScheduler{Logger: logger},
@@ -195,10 +211,12 @@ func TestModifiedPullHandler_Handle_MergeStrategy(t *testing.T) {
 			expectedT:      t,
 			rootConfigs:    []*valid.MergedProjectCfg{root},
 		},
-		PRSignaler: signaler,
+		LegacyHandler: legacyHandler,
+		PRSignaler:    signaler,
 	}
 	err := pullHandler.Handle(context.Background(), &http.BufferedRequest{}, pr)
 	assert.NoError(t, err)
+	assert.True(t, legacyHandler.called)
 	assert.True(t, signaler.called)
 }
 
@@ -219,6 +237,21 @@ func (r *mockConfigBuilder) Build(_ context.Context, commit *config.RepoCommit,
 	return r.rootConfigs, r.error
 }
 
+type mockLegacyHandler struct {
+	expectedEvent    event.PullRequest
+	expectedAllRoots []*valid.MergedProjectCfg
+	expectedT        *testing.T
+	error            error
+	called           bool
+}
+
+func (l *mockLegacyHandler) Handle(ctx context.Context, _ *http.BufferedRequest, event event.PullRequest, allRoots []*valid.MergedProjectCfg) error {
+	l.called = true
+	assert.Equal(l.expectedT, l.expectedEvent, event)
+	assert.Equal(l.expectedT, l.expectedAllRoots, allRoots)
+	return l.error
+}
+
 type mockPRSignaler struct {
 	called            bool
 	error             error