Initial

docker-compose.yml

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+version: '3'
+
+services:
+    gtfs2qr:
+      build:
+        context: ./gtfs2qr
+      container_name: gtfs2qr
+      environment:
+        - DB_HOST=localhost
+        - DB_PORT=3304
+        - DB_NAME=gtfs
+        - DB_USER=default
+        - DB_PASS=secret
+        - FTP_HOST=localhost
+        - FTP_USER=user
+        - FTP_PASS=secret

gtfs2qr/Dockerfile

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+FROM python:3.8
+
+ENV TZ=Europe/Moscow
+ENV TERM=xterm-color
+
+RUN apt-get update && \
+  apt-get install -y --no-install-recommends cron python3-pymysql python3-qrcode p7zip && \
+  rm -rf /var/lib/apt/lists/*
+
+RUN \
+  cp /usr/share/zoneinfo/${TZ} /etc/localtime && \
+  echo "${TZ}" > /etc/timezone && date
+
+COPY cron /etc/cron.d/gtfs2qr
+RUN chmod 0755 /etc/cron.d/gtfs2qr && crontab /etc/cron.d/gtfs2qr
+
+COPY gtfs2qr /opt/gtfs2qr
+
+CMD ["cron", "-f"]

gtfs2qr/cron

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+* * * * * root python3 /opt/gtfs2qr/gtfs2qr.py > /opt/gtfs2qr/logs.log 2>&1

gtfs2qr/gtfs2qr/gtfs2qr.py

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+#!/usr/bin/env python3
+
+import ftplib
+import os
+import os.path as op
+import re
+import shutil
+import subprocess
+from ftplib import FTP
+
+import pymysql
+import qrcode
+from PIL import ImageFont, ImageDraw
+
+
+DB_HOST = os.getenv('DB_HOST', 'default')
+DB_PORT = os.getenv('DB_PORT', 'default')
+DB_NAME = os.getenv('DB_NAME', 'default')
+DB_USER = os.getenv('DB_USER', 'default')
+DB_PASS = os.getenv('DB_PASS', 'default')
+
+URL_TEMPLATE = 'http://rasp.orgp.spb.ru/%i'
+
+FTP_HOST = os.getenv('FTP_HOST', 'default')
+FTP_USER = os.getenv('FTP_USER', 'default')
+FTP_PASS = os.getenv('FTP_PASS', 'default')
+
+transport_type = {
+    'bus': 'Автобус',
+    'trolley': 'Троллейбус',
+    'tram': 'Трамвай',
+    'ship': 'Теплоход',
+}
+
+
+def main():
+
+    qr = qrcode.QRCode(
+        version=3,
+        error_correction=qrcode.constants.ERROR_CORRECT_L,
+        box_size=10,
+        border=4,
+    )
+
+    conn = pymysql.connect(
+        host=DB_HOST,
+        port=DB_PORT,
+        user=DB_USER,
+        password=DB_PASS,
+        db=DB_NAME,
+        charset='utf8mb4',
+        cursorclass=pymysql.cursors.DictCursor
+    )
+    cursor = conn.cursor()
+
+    if op.exists('codes.7z'):
+        os.unlink('codes.7z')
+
+    shutil.rmtree('codes', ignore_errors=True)
+
+    cursor.execute('SELECT * FROM routes ORDER BY route_short_name;')
+    for route in cursor.fetchall():
+        for d in (0, 1):
+            route_path = op.join(
+                'codes',
+                transport_type[route['transport_type']],
+                route['route_short_name'],
+                'туда' if d == 0 else 'обратно'
+            )
+            print(route_path, flush=True)
+            cursor.execute(
+                'SELECT * FROM route_stops WHERE route_id=%s AND direction_id=%s ORDER BY stop_sequence;',
+                (route['route_id'], d)
+            )
+
+            stops = cursor.fetchall()
+            if len(stops) == 0:
+                print('<empty>', flush=True)
+                continue
+
+            for stop in stops:
+                os.makedirs(route_path, exist_ok=True)
+                stop_name = re.sub(r'\s+', ' ', stop['stop_name'].strip())
+                code_name = [
+                    str(stop['stop_sequence']),
+                    re.sub(r'[\?\"/\\<>*|:~]+', '', stop_name),
+                    route['route_short_name'],
+                    transport_type[route['transport_type']],
+                    str(stop['stop_id']),
+                ]
+                image_path = op.join(route_path, '-'.join(code_name) + '.jpeg')
+
+                qr.add_data(URL_TEMPLATE % stop['stop_id'])
+                qr.make(fit=True)
+
+                img = qr.make_image(fill_color="black", back_color="white")
+
+                draw = ImageDraw.Draw(img)
+                font = ImageFont.truetype("Verdana.ttf", 12)
+                stop_name += ' (%i)' % stop['stop_id']
+                text_size = font.getsize(stop_name)
+                draw.text(((img.size[0] - text_size[0]) / 2, img.size[1] - 25), stop_name, font=font)
+
+                with open(image_path, 'wb') as dest:
+                    img.save(dest)
+
+                qr.clear()
+
+    subprocess.run(['7za', 'a', 'codes', 'codes'], check=True)
+
+    with ftplib.FTP(host=FTP_HOST, user=FTP_USER, passwd=FTP_PASS) as ftp:
+        if 'codes.7z' in ftp.nlst():
+            ftp.delete('codes.7z')
+
+        with open('codes.7z', 'rb') as arch:
+            ftp.storbinary('STOR codes.7z', arch)
+
+
+if __name__ == '__main__':
+    main()