Handle GTFS with no calendar.txt

Author: brendannee

CHANGELOG.md

@@ -10,6 +10,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Updated
 - Update Dockerfile
 
+### Fixed
+- Handle GTFS with no calendar.txt
+
 ## [2.11.1] - 2025-09-19
 
 ### Fixed

src/lib/formatters.ts

@@ -270,6 +270,7 @@ export function formatTimetableId({
   routeIds,
   directionId,
   days,
+  dates,
 }: {
   routeIds: string[];
   directionId?: 0 | 1;
@@ -282,8 +283,16 @@ export function formatTimetableId({
     saturday?: null | 0 | 1;
     sunday?: null | 0 | 1;
   };
+  dates?: number[];
 }) {
-  let timetableId = `${routeIds.join('_')}|${calendarToCalendarCode(days)}`;
+  let timetableId = routeIds.join('_');
+
+  if (calendarToCalendarCode(days)) {
+    timetableId += `|${calendarToCalendarCode(days)}`;
+  } else if (dates && dates.length > 0) {
+    timetableId += `|${dates.join('_')}`;
+  }
+
   if (!isNullOrEmpty(directionId)) {
     timetableId += `|${directionId}`;
   }

src/lib/time-utils.ts

@@ -32,6 +32,10 @@ export function calendarToCalendarCode(c: {
   saturday?: null | 0 | 1;
   sunday?: null | 0 | 1;
 }) {
+  if (Object.values(c).every((value) => value === null)) {
+    return '';
+  }
+
   return `${c.monday}${c.tuesday}${c.wednesday}${c.thursday}${c.friday}${c.saturday}${c.sunday}`;
 }
 

src/lib/utils.ts

@@ -515,7 +515,23 @@ const createTimetable = ({
     ...(calendarDates?.map((calendarDate) => calendarDate.service_id) ?? []),
   ]);
 
-  const days = {};
+  const days: {
+    monday: null | 0 | 1;
+    tuesday: null | 0 | 1;
+    wednesday: null | 0 | 1;
+    thursday: null | 0 | 1;
+    friday: null | 0 | 1;
+    saturday: null | 0 | 1;
+    sunday: null | 0 | 1;
+  } = {
+    monday: null,
+    tuesday: null,
+    wednesday: null,
+    thursday: null,
+    friday: null,
+    saturday: null,
+    sunday: null,
+  };
   let startDate: number | null = null;
   let endDate: number | null = null;
 
@@ -543,6 +559,7 @@ const createTimetable = ({
     routeIds: [route.route_id],
     directionId: directionId,
     days: days,
+    dates: calendarDates?.map((calendarDate) => calendarDate.date),
   });
 
   return {
@@ -626,6 +643,10 @@ const convertRoutesToTimetablePages = (config: Config) => {
       }
     }
 
+    if (timetables.length === 0) {
+      continue;
+    }
+
     if (config.groupTimetablesIntoPages === true) {
       timetablePages.push(
         createTimetablePage({