Add report distributor path defaults

internal/report/daily_report.go

@@ -18,6 +18,10 @@ func dailyDefinition() Definition {
 		ComparisonStrategy:    CompareSameValidDate,
 		ArtifactGroup:         "daily",
 		BatchOutputName:       "daily.md",
+		DistributorPathTemplates: []string{
+			"daily/{valid_start_date}/{run_id}.md",
+			"daily/{valid_start_date}/index.md",
+		},
 		Generated:          true,
 		CompatiblePriorIDs: []ID{Daily},
 		Modules:            dailyModules(),

internal/report/definition.go

@@ -55,6 +55,7 @@ type Definition struct {
 	ComparisonStrategy       ComparisonStrategy
 	ArtifactGroup            string
 	BatchOutputName          string
+	DistributorPathTemplates []string
 	Generated                bool
 	CompatiblePriorIDs       []ID
 	Modules                  []module.ConfigItem

internal/report/hourly_report.go

@@ -20,6 +20,9 @@ func hourlyDefinition() Definition {
 		ComparisonStrategy:    CompareRollingWindow,
 		ArtifactGroup:         "hourly",
 		BatchOutputName:       "hourly.md",
+		DistributorPathTemplates: []string{
+			"hourly/index.md",
+		},
 		Generated:          true,
 		CompatiblePriorIDs: []ID{Hourly},
 		Modules:            hourlyModules(),

internal/report/period_test.go

@@ -520,6 +520,88 @@ func TestRegistryDefinitionsDeclarePathAndCompatibilityPolicy(t *testing.T) {
 	}
 }
 
+func TestGeneratedRegistryDefinitionsDeclareDistributorPathDefaults(t *testing.T) {
+	for _, definition := range DefaultRegistry().All() {
+		if !definition.Generated {
+			continue
+		}
+		if len(definition.DistributorPathTemplates) == 0 {
+			t.Fatalf("%s DistributorPathTemplates is empty", definition.ID)
+		}
+	}
+}
+
+func TestRegistryDefinitionsDeclareDefaultDistributorPathTemplates(t *testing.T) {
+	tests := []struct {
+		id   ID
+		want []string
+	}{
+		{
+			id: Hourly,
+			want: []string{
+				"hourly/index.md",
+			},
+		},
+		{
+			id: Daily,
+			want: []string{
+				"daily/{valid_start_date}/{run_id}.md",
+				"daily/{valid_start_date}/index.md",
+			},
+		},
+		{
+			id: Today,
+			want: []string{
+				"daily/{valid_start_date}/{run_id}.md",
+				"daily/{valid_start_date}/index.md",
+				"today/index.md",
+			},
+		},
+		{
+			id: Tomorrow,
+			want: []string{
+				"daily/{valid_start_date}/{run_id}.md",
+				"daily/{valid_start_date}/index.md",
+				"tomorrow/index.md",
+			},
+		},
+		{
+			id: ThreeDay,
+			want: []string{
+				"three-day/{valid_start_date}/{run_id}.md",
+				"three-day/{valid_start_date}/index.md",
+			},
+		},
+		{
+			id: Weekend,
+			want: []string{
+				"weekend/{valid_start_date}/{run_id}.md",
+				"weekend/{valid_start_date}/index.md",
+			},
+		},
+		{
+			id: Storm,
+			want: []string{
+				"storm/{storm_id}/{run_id}.md",
+				"storm/{storm_id}/index.md",
+			},
+		},
+	}
+
+	registry := DefaultRegistry()
+	for _, tt := range tests {
+		t.Run(string(tt.id), func(t *testing.T) {
+			definition, err := registry.Lookup(tt.id)
+			if err != nil {
+				t.Fatalf("Lookup() error = %v", err)
+			}
+			if !reflect.DeepEqual(definition.DistributorPathTemplates, tt.want) {
+				t.Fatalf("DistributorPathTemplates = %#v, want %#v", definition.DistributorPathTemplates, tt.want)
+			}
+		})
+	}
+}
+
 func TestRegistryDefinitionsDeclareDefaultModules(t *testing.T) {
 	tests := []struct {
 		id   ID
@@ -682,6 +764,9 @@ func TestRegistryAppliesModuleOverridesWithoutChangingDefaults(t *testing.T) {
 	if len(defaultDefinition.ModuleIDs()) <= len(definition.ModuleIDs()) {
 		t.Fatalf("default ModuleIDs() = %#v, want original defaults unchanged", defaultDefinition.ModuleIDs())
 	}
+	if !reflect.DeepEqual(definition.DistributorPathTemplates, defaultDefinition.DistributorPathTemplates) {
+		t.Fatalf("overridden DistributorPathTemplates = %#v, want %#v", definition.DistributorPathTemplates, defaultDefinition.DistributorPathTemplates)
+	}
 }
 
 func TestRegistryRejectsModuleOverrideForUnknownReport(t *testing.T) {

internal/report/registry.go

@@ -30,8 +30,7 @@ func DefaultRegistry() Registry {
 func (r Registry) WithModuleOverrides(overrides map[ID][]module.ConfigItem) (Registry, error) {
 	next := Registry{definitions: map[ID]Definition{}}
 	for id, definition := range r.definitions {
-		definition.Modules = append([]module.ConfigItem(nil), definition.Modules...)
+		next.definitions[id] = cloneDefinition(definition)
-		next.definitions[id] = definition
 	}
 	for id, items := range overrides {
 		definition, ok := next.definitions[id]
@@ -44,6 +43,12 @@ func (r Registry) WithModuleOverrides(overrides map[ID][]module.ConfigItem) (Reg
 	return next, nil
 }
 
+func cloneDefinition(definition Definition) Definition {
+	definition.Modules = cloneModuleItems(definition.Modules)
+	definition.DistributorPathTemplates = append([]string(nil), definition.DistributorPathTemplates...)
+	return definition
+}
+
 func moduleItems(ids ...module.ID) []module.ConfigItem {
 	items := make([]module.ConfigItem, 0, len(ids))
 	for _, id := range ids {

internal/report/storm_report.go

@@ -17,6 +17,10 @@ func stormDefinition() Definition {
 		ComparisonStrategy: CompareExplicitWindow,
 		ArtifactGroup:      "storm",
 		BatchOutputName:    "storm.md",
+		DistributorPathTemplates: []string{
+			"storm/{storm_id}/{run_id}.md",
+			"storm/{storm_id}/index.md",
+		},
 		Generated:          true,
 		CompatiblePriorIDs: []ID{Storm},
 		Modules:            stormModules(),

internal/report/three_day_report.go

@@ -16,6 +16,10 @@ func threeDayDefinition() Definition {
 		ComparisonStrategy: CompareSameValidDate,
 		ArtifactGroup:      "three-day",
 		BatchOutputName:    "three-day.md",
+		DistributorPathTemplates: []string{
+			"three-day/{valid_start_date}/{run_id}.md",
+			"three-day/{valid_start_date}/index.md",
+		},
 		Generated:          true,
 		CompatiblePriorIDs: []ID{ThreeDay},
 		Modules:            threeDayModules(),

internal/report/today_report.go

@@ -16,6 +16,11 @@ func todayDefinition() Definition {
 		ComparisonStrategy:    CompareSameValidDate,
 		ArtifactGroup:         "today",
 		BatchOutputName:       "today.md",
+		DistributorPathTemplates: []string{
+			"daily/{valid_start_date}/{run_id}.md",
+			"daily/{valid_start_date}/index.md",
+			"today/index.md",
+		},
 		Generated:          true,
 		CompatiblePriorIDs: []ID{Today},
 		Modules:            todayModules(),

internal/report/tomorrow_report.go

@@ -16,6 +16,11 @@ func tomorrowDefinition() Definition {
 		ComparisonStrategy:    CompareSameValidDate,
 		ArtifactGroup:         "tomorrow",
 		BatchOutputName:       "tomorrow.md",
+		DistributorPathTemplates: []string{
+			"daily/{valid_start_date}/{run_id}.md",
+			"daily/{valid_start_date}/index.md",
+			"tomorrow/index.md",
+		},
 		Generated:          true,
 		CompatiblePriorIDs: []ID{Tomorrow},
 		Modules:            tomorrowModules(),

internal/report/weekend_report.go

@@ -17,6 +17,10 @@ func weekendDefinition() Definition {
 		ComparisonStrategy: CompareWeekendWindow,
 		ArtifactGroup:      "weekend",
 		BatchOutputName:    "weekend.md",
+		DistributorPathTemplates: []string{
+			"weekend/{valid_start_date}/{run_id}.md",
+			"weekend/{valid_start_date}/index.md",
+		},
 		Generated:          true,
 		CompatiblePriorIDs: []ID{Weekend},
 		Modules:            weekendModules(),