Add shared-root publish planning

internal/app/run_test.go

@@ -15,6 +15,7 @@ import (
 	"gitea.maximumdirect.net/eric/distributor/internal/bundle"
 	"gitea.maximumdirect.net/eric/distributor/internal/config"
 	"gitea.maximumdirect.net/eric/distributor/internal/notify"
+	"gitea.maximumdirect.net/eric/distributor/internal/publish"
 	"gitea.maximumdirect.net/eric/distributor/internal/state"
 	"gitea.maximumdirect.net/eric/distributor/internal/storage"
 	"gitea.maximumdirect.net/eric/distributor/internal/storage/fake"
@@ -221,6 +222,35 @@ func TestRunPublishesNewLocalBundle(t *testing.T) {
 	}
 }
 
+func TestRunThreadsSharedRootStateModeIntoPublish(t *testing.T) {
+	sourceRoot := t.TempDir()
+	destinationRoot := t.TempDir()
+	writeSourceBundle(t, sourceRoot, "", testBundleOptions{
+		Files: []testFile{{Path: "report.md", Data: "# Report\n"}},
+	})
+	configPath := writeSharedRootLocalConfig(t, sourceRoot, destinationRoot)
+
+	cfg, err := config.LoadFile(configPath)
+	if err != nil {
+		t.Fatalf("load config: %v", err)
+	}
+	report, err := buildRunReportWithBackendFactory(context.Background(), cfg, RunOptions{DryRun: true}, newBackendFactoryWithEnvironment)
+	if err != nil {
+		t.Fatalf("dry-run buildRunReportWithBackendFactory() error = %v", err)
+	}
+	if got, want := report.Actions[0].Action, string(publish.ActionPublishNew); got != want {
+		t.Fatalf("dry-run action = %q, want %q", got, want)
+	}
+
+	err = Run(context.Background(), RunOptions{ConfigPath: configPath})
+	if err == nil || !strings.Contains(err.Error(), "shared-root publish execution is not implemented") {
+		t.Fatalf("Run() error = %v, want shared-root execution guard", err)
+	}
+	if _, statErr := os.Stat(filepath.Join(destinationRoot, storage.StateFileName)); !os.IsNotExist(statErr) {
+		t.Fatalf("state file stat error = %v, want absent", statErr)
+	}
+}
+
 func TestRunPipelineWithLocalSourcePublishesConfiguredDestination(t *testing.T) {
 	sourceRoot := t.TempDir()
 	destinationRoot := t.TempDir()
@@ -1717,6 +1747,23 @@ func writeLocalConfig(t *testing.T, sourceRoot, destinationRoot string) string {
 	return testutil.WriteMinimalLocalConfig(t, sourceRoot, destinationRoot)
 }
 
+func writeSharedRootLocalConfig(t *testing.T, sourceRoot, destinationRoot string) string {
+	t.Helper()
+	return writeConfigFile(t, `
+pipelines:
+  - id: reports
+    source:
+      backend: local
+      path: `+sourceRoot+`
+    destinations:
+      - id: archive
+        backend: local
+        path: `+destinationRoot+`
+        state:
+          mode: shared_root
+`)
+}
+
 func writeFanoutConfig(t *testing.T, sourceRoot, firstDestination, secondDestination string) string {
 	t.Helper()
 	return testutil.WriteFanoutLocalConfig(t, sourceRoot, firstDestination, secondDestination)