Implemented default config/campaign discovery for narratio session init

docs/cli.md

@@ -148,8 +148,8 @@ Valid stage names:
 
 ### `session init`
 
-- `--config <path>`: required.
+- `--config <path>`: optional explicit `pipeline.yml` path.
-- `--campaign <path>`: required.
+- `--campaign <path>`: optional explicit `campaign.yml` path.
 - `--session-id <value>`: required.
 - `--output <path>`: local `session.yml` target; mutually exclusive with `--remote`.
 - `--remote`: write remote `session.yml` to the canonical session prefix; mutually exclusive with `--output`.
@@ -302,12 +302,14 @@ Purpose:
 Syntax:
 
 ```bash
-narratio session init --config <pipeline.yml> --campaign <campaign.yml> --session-id <id> --output ./session.yml
+narratio session init --session-id <id> --output ./session.yml
+narratio session init --session-id <id> --remote
 narratio session init --config <pipeline.yml> --campaign <campaign.yml> --session-id <id> --remote
 ```
 
 Behavior:
 - exactly one of `--output` or `--remote` is required.
+- `--config` and `--campaign` are optional overrides; omitted values use normal default config discovery.
 - remote writes target `{root_prefix}/campaigns/{campaign}/sessions/{session_id}/session.yml`.
 - existing local or remote targets fail unless `--force` is passed.
 - remote writes use existence checks, not compare-and-swap.

docs/operations.md

@@ -26,10 +26,10 @@ Notes:
 Initialize a remote session skeleton:
 
 ```bash
-narratio session init --config /etc/narratio/pipeline.yml --campaign /etc/narratio/campaign.yml --session-id 2026-04-04 --remote
+narratio session init --session-id 2026-04-04 --remote
 ```
 
-Remote init writes `{root_prefix}/campaigns/{campaign}/sessions/{session_id}/session.yml`. It fails if the object already exists unless `--force` is passed.
+Remote init uses normal default config discovery and writes `{root_prefix}/campaigns/{campaign}/sessions/{session_id}/session.yml`. Pass `--config` and `--campaign` when testing non-system config files. It fails if the object already exists unless `--force` is passed.
 
 Validate before running:
 

internal/app/config_loader.go

@@ -12,18 +12,21 @@ import (
 	"gitea.maximumdirect.net/eric/narratio/internal/config"
 )
 
+type pipelineCampaignConfig struct {
+	PipelinePath string
+	CampaignPath string
+	Pipeline     *config.PipelineConfig
+	Campaign     *config.CampaignConfig
+}
+
 func loadCommandConfig(ctx context.Context, pipelineFlag, campaignFlag, sessionFlag string, sessionOpts config.SessionLoadOptions) (*config.Config, error) {
-	resolvedPipelinePath, err := resolvePipelineConfigPath(pipelineFlag)
+	base, err := loadPipelineCampaignConfig(pipelineFlag, campaignFlag)
-	if err != nil {
-		return nil, err
-	}
-	resolvedCampaignPath, err := resolveCampaignConfigPath(campaignFlag)
 	if err != nil {
 		return nil, err
 	}
 
 	if explicitSession := strings.TrimSpace(sessionFlag); explicitSession != "" {
-		return config.LoadWithSessionOptions(resolvedPipelinePath, resolvedCampaignPath, explicitSession, sessionOpts)
+		return config.LoadWithSessionOptions(base.PipelinePath, base.CampaignPath, explicitSession, sessionOpts)
 	}
 
 	discoveredSession, err := discoverSessionConfigPathWithCandidates(config.DefaultSessionConfigSearchPaths)
@@ -31,16 +34,7 @@ func loadCommandConfig(ctx context.Context, pipelineFlag, campaignFlag, sessionF
 		return nil, err
 	}
 	if discoveredSession.Path != "" {
-		return config.LoadWithSessionOptions(resolvedPipelinePath, resolvedCampaignPath, discoveredSession.Path, sessionOpts)
+		return config.LoadWithSessionOptions(base.PipelinePath, base.CampaignPath, discoveredSession.Path, sessionOpts)
-	}
-
-	pipelineCfg, err := config.LoadPipeline(resolvedPipelinePath)
-	if err != nil {
-		return nil, err
-	}
-	campaignCfg, err := config.LoadCampaign(resolvedCampaignPath)
-	if err != nil {
-		return nil, err
 	}
 
 	sessionID := strings.TrimSpace(sessionOpts.SessionID)
@@ -48,13 +42,13 @@ func loadCommandConfig(ctx context.Context, pipelineFlag, campaignFlag, sessionF
 		return nil, missingSessionConfigError(discoveredSession.Searched, "remote session loading requires --session-id")
 	}
 
-	sessionPrefix := artifacts.S3SessionPrefix(pipelineCfg.Storage.S3.RootPrefix, campaignCfg.Campaign, sessionID)
+	sessionPrefix := artifacts.S3SessionPrefix(base.Pipeline.Storage.S3.RootPrefix, base.Campaign.Campaign, sessionID)
 	remoteKey := artifacts.S3SessionConfigKey(sessionPrefix)
 	partialCfg := &config.Config{
-		Pipeline:     pipelineCfg,
+		Pipeline:     base.Pipeline,
-		Campaign:     campaignCfg,
+		Campaign:     base.Campaign,
-		PipelinePath: resolvedPipelinePath,
+		PipelinePath: base.PipelinePath,
-		CampaignPath: resolvedCampaignPath,
+		CampaignPath: base.CampaignPath,
 	}
 	store, err := newCommandObjectStore(ctx, partialCfg, nil)
 	if err != nil {
@@ -73,22 +67,22 @@ func loadCommandConfig(ctx context.Context, pipelineFlag, campaignFlag, sessionF
 	if err != nil {
 		return nil, fmt.Errorf("read downloaded remote session %q: %w", sessionTempPath, err)
 	}
-	sessionCfg, err := config.LoadSessionBytesWithOptions("s3://"+s3BucketName(pipelineCfg)+"/"+remoteKey, sessionBytes, sessionOpts)
+	sessionCfg, err := config.LoadSessionBytesWithOptions("s3://"+s3BucketName(base.Pipeline)+"/"+remoteKey, sessionBytes, sessionOpts)
 	if err != nil {
 		return nil, err
 	}
 
 	return config.Resolve(
-		resolvedPipelinePath,
+		base.PipelinePath,
-		pipelineCfg,
+		base.Pipeline,
-		resolvedCampaignPath,
+		base.CampaignPath,
-		campaignCfg,
+		base.Campaign,
 		sessionTempPath,
 		sessionCfg,
 		config.SessionSource{
 			Source:    "session_config.s3",
 			LocalPath: sessionTempPath,
-			S3Bucket:  s3BucketName(pipelineCfg),
+			S3Bucket:  s3BucketName(base.Pipeline),
 			S3Key:     remoteKey,
 			S3Size:    sessionInfo.Size,
 			S3ETag:    sessionInfo.ETag,
@@ -97,6 +91,31 @@ func loadCommandConfig(ctx context.Context, pipelineFlag, campaignFlag, sessionF
 	)
 }
 
+func loadPipelineCampaignConfig(pipelineFlag, campaignFlag string) (*pipelineCampaignConfig, error) {
+	resolvedPipelinePath, err := resolvePipelineConfigPath(pipelineFlag)
+	if err != nil {
+		return nil, err
+	}
+	resolvedCampaignPath, err := resolveCampaignConfigPath(campaignFlag)
+	if err != nil {
+		return nil, err
+	}
+	pipelineCfg, err := config.LoadPipeline(resolvedPipelinePath)
+	if err != nil {
+		return nil, err
+	}
+	campaignCfg, err := config.LoadCampaign(resolvedCampaignPath)
+	if err != nil {
+		return nil, err
+	}
+	return &pipelineCampaignConfig{
+		PipelinePath: resolvedPipelinePath,
+		CampaignPath: resolvedCampaignPath,
+		Pipeline:     pipelineCfg,
+		Campaign:     campaignCfg,
+	}, nil
+}
+
 func findRemoteSessionConfig(ctx context.Context, store storage.ObjectStore, sessionPrefix, remoteKey string) (storage.ObjectInfo, error) {
 	objects, err := store.List(ctx, sessionPrefix)
 	if err != nil {

internal/app/operator_helpers.go

@@ -258,8 +258,8 @@ func SessionInit(ctx context.Context, args []string, out io.Writer) error {
 	fs.SetOutput(io.Discard)
 	var pipelinePath, campaignPath, sessionID, previousSessionID, date, title, output, audioS3Prefix, audioDir string
 	var remote, force bool
-	fs.StringVar(&pipelinePath, "config", "", "path to pipeline.yml")
+	fs.StringVar(&pipelinePath, "config", "", "path to pipeline.yml (optional; defaults searched)")
-	fs.StringVar(&campaignPath, "campaign", "", "path to campaign.yml")
+	fs.StringVar(&campaignPath, "campaign", "", "path to campaign.yml (optional; defaults searched)")
 	fs.StringVar(&sessionID, "session-id", "", "session identifier")
 	fs.StringVar(&previousSessionID, "previous-session-id", "", "previous session identifier")
 	fs.StringVar(&date, "date", "", "session date")
@@ -275,8 +275,8 @@ func SessionInit(ctx context.Context, args []string, out io.Writer) error {
 	if fs.NArg() != 0 {
 		return fmt.Errorf("session init: unexpected positional arguments")
 	}
-	if strings.TrimSpace(pipelinePath) == "" || strings.TrimSpace(campaignPath) == "" || strings.TrimSpace(sessionID) == "" {
+	if strings.TrimSpace(sessionID) == "" {
-		return fmt.Errorf("session init: --config, --campaign, and --session-id are required")
+		return fmt.Errorf("session init: --session-id is required")
 	}
 	if (strings.TrimSpace(output) == "") == !remote {
 		return fmt.Errorf("session init: specify exactly one target: --output <path> or --remote")
@@ -285,24 +285,12 @@ func SessionInit(ctx context.Context, args []string, out io.Writer) error {
 		return fmt.Errorf("session init: --audio-dir and --audio-s3-prefix are mutually exclusive")
 	}
 
-	resolvedPipeline, err := resolvePipelineConfigPath(pipelinePath)
+	base, err := loadPipelineCampaignConfig(pipelinePath, campaignPath)
-	if err != nil {
-		return fmt.Errorf("session init: %w", err)
-	}
-	resolvedCampaign, err := resolveCampaignConfigPath(campaignPath)
-	if err != nil {
-		return fmt.Errorf("session init: %w", err)
-	}
-	pipelineCfg, err := config.LoadPipeline(resolvedPipeline)
-	if err != nil {
-		return fmt.Errorf("session init: %w", err)
-	}
-	campaignCfg, err := config.LoadCampaign(resolvedCampaign)
 	if err != nil {
 		return fmt.Errorf("session init: %w", err)
 	}
 
-	data, err := buildSessionYAML(campaignCfg.Campaign, sessionID, previousSessionID, date, title, audioS3Prefix, audioDir)
+	data, err := buildSessionYAML(base.Campaign.Campaign, sessionID, previousSessionID, date, title, audioS3Prefix, audioDir)
 	if err != nil {
 		return fmt.Errorf("session init: %w", err)
 	}
@@ -317,7 +305,7 @@ func SessionInit(ctx context.Context, args []string, out io.Writer) error {
 	if err != nil {
 		return fmt.Errorf("session init: %w", err)
 	}
-	cfg, err := config.Resolve(resolvedPipeline, pipelineCfg, resolvedCampaign, campaignCfg, label, sessionCfg, config.SessionSource{Source: "session_config", LocalPath: label})
+	cfg, err := config.Resolve(base.PipelinePath, base.Pipeline, base.CampaignPath, base.Campaign, label, sessionCfg, config.SessionSource{Source: "session_config", LocalPath: label})
 	if err != nil {
 		return fmt.Errorf("session init: %w", err)
 	}
@@ -337,7 +325,7 @@ func SessionInit(ctx context.Context, args []string, out io.Writer) error {
 	if err != nil {
 		return fmt.Errorf("session init: %w", err)
 	}
-	sessionPrefix := artifacts.S3SessionPrefix(pipelineCfg.Storage.S3.RootPrefix, campaignCfg.Campaign, sessionID)
+	sessionPrefix := artifacts.S3SessionPrefix(base.Pipeline.Storage.S3.RootPrefix, base.Campaign.Campaign, sessionID)
 	key := artifacts.S3SessionConfigKey(sessionPrefix)
 	exists, err := store.Exists(ctx, key)
 	if err != nil {
@@ -362,7 +350,7 @@ func SessionInit(ctx context.Context, args []string, out io.Writer) error {
 	if _, err := store.Upload(ctx, tmpPath, key, storage.UploadOptions{ContentType: "application/x-yaml; charset=utf-8"}); err != nil {
 		return fmt.Errorf("session init: upload remote session %q: %w", key, err)
 	}
-	_, err = fmt.Fprintf(out, "narratio session init: wrote s3://%s/%s\n", s3BucketName(pipelineCfg), key)
+	_, err = fmt.Fprintf(out, "narratio session init: wrote s3://%s/%s\n", s3BucketName(base.Pipeline), key)
 	return err
 }
 

internal/app/operator_helpers_test.go

@@ -48,6 +48,172 @@ func TestExecuteSessionInitRemoteWritesCanonicalSessionConfig(t *testing.T) {
 	}
 }
 
+func TestExecuteSessionInitRemoteUsesDefaultConfigDiscovery(t *testing.T) {
+	workspaceRoot := t.TempDir()
+	pipelinePath, campaignPath, _ := writeValidConfigFiles(t, workspaceRoot)
+	withDefaultPipelineCampaignConfigs(t, pipelinePath, campaignPath)
+	fake := &storage.FakeBackend{}
+	var storeInitCalls int
+	restoreAppConfigTestGlobals(t, fake, &storeInitCalls, []string{filepath.Join(t.TempDir(), "session.yml")})
+
+	var stdout bytes.Buffer
+	var stderr bytes.Buffer
+	code := Execute([]string{
+		"session", "init",
+		"--session-id", "2026-06-07",
+		"--remote",
+	}, &stdout, &stderr)
+	if code != 0 {
+		t.Fatalf("exit code = %d, want 0; stderr=%q", code, stderr.String())
+	}
+	key := artifacts.S3SessionConfigKey(artifacts.S3SessionPrefix("dnd", "sample-campaign", "2026-06-07"))
+	if _, ok := fake.Objects[key]; !ok {
+		t.Fatalf("remote session key %q not uploaded; objects=%v", key, fake.Objects)
+	}
+	if storeInitCalls != 1 {
+		t.Fatalf("object store init calls = %d, want 1", storeInitCalls)
+	}
+}
+
+func TestExecuteSessionInitLocalUsesDefaultConfigDiscovery(t *testing.T) {
+	workspaceRoot := t.TempDir()
+	pipelinePath, campaignPath, _ := writeValidConfigFiles(t, workspaceRoot)
+	withDefaultPipelineCampaignConfigs(t, pipelinePath, campaignPath)
+	outputPath := filepath.Join(t.TempDir(), "session.yml")
+
+	var stdout bytes.Buffer
+	var stderr bytes.Buffer
+	code := Execute([]string{
+		"session", "init",
+		"--session-id", "2026-06-07",
+		"--output", outputPath,
+	}, &stdout, &stderr)
+	if code != 0 {
+		t.Fatalf("exit code = %d, want 0; stderr=%q", code, stderr.String())
+	}
+	data, err := os.ReadFile(outputPath)
+	if err != nil {
+		t.Fatalf("read generated session: %v", err)
+	}
+	if !strings.Contains(string(data), `session_id: "2026-06-07"`) || !strings.Contains(string(data), "prefix: audio/") {
+		t.Fatalf("generated session = %q", string(data))
+	}
+}
+
+func TestExecuteSessionInitExplicitConfigWinsOverDefaults(t *testing.T) {
+	workspaceRoot := t.TempDir()
+	defaultPipeline, defaultCampaign, _ := writeValidConfigFiles(t, workspaceRoot)
+	withDefaultPipelineCampaignConfigs(t, defaultPipeline, defaultCampaign)
+
+	explicitDir := t.TempDir()
+	explicitCampaign := filepath.Join(explicitDir, "campaign.yml")
+	if err := os.WriteFile(explicitCampaign, []byte(`campaign: explicit-campaign
+inputs:
+  speakers_file: ./speakers.yml
+  autocorrect_file: ./autocorrect.yml
+  glossary_file: ./glossary.yml
+`), 0o644); err != nil {
+		t.Fatalf("write explicit campaign: %v", err)
+	}
+	mustWriteTestFile(t, filepath.Join(explicitDir, "speakers.yml"), "match:\n  - speaker: Alice\n    match: [\"alice\"]\n")
+	mustWriteTestFile(t, filepath.Join(explicitDir, "autocorrect.yml"), "[]\n")
+	mustWriteTestFile(t, filepath.Join(explicitDir, "glossary.yml"), "[]\n")
+
+	fake := &storage.FakeBackend{}
+	var storeInitCalls int
+	restoreAppConfigTestGlobals(t, fake, &storeInitCalls, []string{filepath.Join(t.TempDir(), "session.yml")})
+
+	var stdout bytes.Buffer
+	var stderr bytes.Buffer
+	code := Execute([]string{
+		"session", "init",
+		"--config", defaultPipeline,
+		"--campaign", explicitCampaign,
+		"--session-id", "2026-06-07",
+		"--remote",
+	}, &stdout, &stderr)
+	if code != 0 {
+		t.Fatalf("exit code = %d, want 0; stderr=%q", code, stderr.String())
+	}
+	explicitKey := artifacts.S3SessionConfigKey(artifacts.S3SessionPrefix("dnd", "explicit-campaign", "2026-06-07"))
+	if _, ok := fake.Objects[explicitKey]; !ok {
+		t.Fatalf("explicit campaign remote key %q not uploaded; objects=%v", explicitKey, fake.Objects)
+	}
+	defaultKey := artifacts.S3SessionConfigKey(artifacts.S3SessionPrefix("dnd", "sample-campaign", "2026-06-07"))
+	if _, ok := fake.Objects[defaultKey]; ok {
+		t.Fatalf("default campaign key %q uploaded despite explicit campaign override", defaultKey)
+	}
+}
+
+func TestExecuteSessionInitRequiresSessionID(t *testing.T) {
+	workspaceRoot := t.TempDir()
+	pipelinePath, campaignPath, _ := writeValidConfigFiles(t, workspaceRoot)
+	withDefaultPipelineCampaignConfigs(t, pipelinePath, campaignPath)
+
+	var stdout bytes.Buffer
+	var stderr bytes.Buffer
+	code := Execute([]string{"session", "init", "--remote"}, &stdout, &stderr)
+	if code == 0 {
+		t.Fatal("exit code = 0, want non-zero")
+	}
+	if !strings.Contains(stderr.String(), "session init: --session-id is required") {
+		t.Fatalf("stderr = %q, want session-id required error", stderr.String())
+	}
+}
+
+func TestExecuteSessionInitMissingDefaultConfigReportsSearchedPaths(t *testing.T) {
+	origPipelineDefaults := append([]string(nil), config.DefaultPipelineConfigSearchPaths...)
+	origCampaignDefaults := append([]string(nil), config.DefaultCampaignConfigSearchPaths...)
+	config.DefaultPipelineConfigSearchPaths = []string{filepath.Join(t.TempDir(), "missing-pipeline.yml")}
+	config.DefaultCampaignConfigSearchPaths = []string{filepath.Join(t.TempDir(), "missing-campaign.yml")}
+	t.Cleanup(func() {
+		config.DefaultPipelineConfigSearchPaths = origPipelineDefaults
+		config.DefaultCampaignConfigSearchPaths = origCampaignDefaults
+	})
+
+	var stdout bytes.Buffer
+	var stderr bytes.Buffer
+	code := Execute([]string{"session", "init", "--session-id", "2026-06-07", "--remote"}, &stdout, &stderr)
+	if code == 0 {
+		t.Fatal("exit code = 0, want non-zero")
+	}
+	if !strings.Contains(stderr.String(), "session init: no pipeline config path provided and no default pipeline config found; searched:") {
+		t.Fatalf("stderr = %q, want default pipeline searched-path error", stderr.String())
+	}
+}
+
+func TestExecuteSessionInitRemoteLoadsSecretsBeforeObjectStoreInit(t *testing.T) {
+	workspaceRoot := t.TempDir()
+	pipelinePath, campaignPath, _ := writeValidConfigFiles(t, workspaceRoot)
+	withDefaultPipelineCampaignConfigs(t, pipelinePath, campaignPath)
+	accessKeyEnv := "NARRATIO_TEST_SESSION_INIT_OBJECT_KEY_ID"
+	secretKeyEnv := "NARRATIO_TEST_SESSION_INIT_OBJECT_SECRET"
+	restoreEnvAfterTest(t, accessKeyEnv, secretKeyEnv)
+	secretsDir := t.TempDir()
+	mustWriteTestFile(t, filepath.Join(secretsDir, accessKeyEnv), "test-key-id\n")
+	mustWriteTestFile(t, filepath.Join(secretsDir, secretKeyEnv), "test-secret\n")
+	addSecretsToPipelineConfig(t, pipelinePath, secretsDir, accessKeyEnv, secretKeyEnv)
+
+	fake := &storage.FakeBackend{}
+	origStoreFn := newObjectStoreFromConfigFn
+	newObjectStoreFromConfigFn = func(context.Context, *config.Config) (storage.ObjectStore, error) {
+		if os.Getenv(accessKeyEnv) != "test-key-id" || os.Getenv(secretKeyEnv) != "test-secret" {
+			return nil, fmt.Errorf("secrets were not loaded before object store init")
+		}
+		return fake, nil
+	}
+	t.Cleanup(func() {
+		newObjectStoreFromConfigFn = origStoreFn
+	})
+
+	var stdout bytes.Buffer
+	var stderr bytes.Buffer
+	code := Execute([]string{"session", "init", "--session-id", "2026-06-07", "--remote"}, &stdout, &stderr)
+	if code != 0 {
+		t.Fatalf("exit code = %d, want 0; stderr=%q", code, stderr.String())
+	}
+}
+
 func TestExecuteSessionValidateLoadsSecretsBeforeObjectStoreInit(t *testing.T) {
 	workspaceRoot := t.TempDir()
 	pipelinePath, campaignPath, sessionPath := writeValidConfigFiles(t, workspaceRoot)
@@ -308,6 +474,18 @@ func TestExecuteTopLevelLockAndUnlockAreRemoved(t *testing.T) {
 	}
 }
 
+func withDefaultPipelineCampaignConfigs(t *testing.T, pipelinePath, campaignPath string) {
+	t.Helper()
+	origPipelineDefaults := append([]string(nil), config.DefaultPipelineConfigSearchPaths...)
+	origCampaignDefaults := append([]string(nil), config.DefaultCampaignConfigSearchPaths...)
+	config.DefaultPipelineConfigSearchPaths = []string{pipelinePath}
+	config.DefaultCampaignConfigSearchPaths = []string{campaignPath}
+	t.Cleanup(func() {
+		config.DefaultPipelineConfigSearchPaths = origPipelineDefaults
+		config.DefaultCampaignConfigSearchPaths = origCampaignDefaults
+	})
+}
+
 func TestExecuteArtifactsListRemoteReportsPromotedAvailability(t *testing.T) {
 	workspaceRoot := t.TempDir()
 	pipelinePath, campaignPath, sessionPath := writeValidConfigFiles(t, workspaceRoot)