Program which tells people if it’s going to rain or shine a lot!

This program will check today’s weather forecast and tell you if you’re supposed to wear a sunblock or take an umbrella with you. Very handy for people who live in the basement and don’t have any windows!

Requirements, assumptions, things that might go wrong:

Internet connection

Don’t use proxies or VPNs

if you do, don’t change your geoip too much - we use it to figure out your location.

Computer configured with local timezone

If you’re running this on a server - check if it’s not configured to use UTC timezone.

Docker (or equivalent) to build & run the image

openweathermap.org API key

store it in apikey file

Running the software at the evenings

Running this software at 23:59 will still look at today’s weather data, so you can’t use this program to plan for tomorrow.

How to…:

build it?

make build

Requires GNU Make, Docker and the user to be in the docker group (or run this as root - there’s little difference between being in a docker group and root.)

lint the source code?

make lint

Requires GNU Make, hadolint, pylint, python3.9 and mypy.

test whether it works?

make test

Requires GNU make and Docker.

Generate an API key and make the program use it?

1. Sign up on https://home.openweathermap.org/users/sign_up
2. Copy the API key from https://home.openweathermap.org/api_keys
3. Save it in apikey file like that:

   API_KEY=435897efdsfwe8732j98fyq90eqwu0e4
       

4. API key will be passed as an environmental variable to the running container - you won’t leak it on accidental docker push.

Run with my own command line parameters?

You can either install dependencies (python3.9, requests) and run it with

API_KEY=XXX python3.9 weather.py [-h] --weather {shine,rain}

or run it in docker containers:

make build
docker run --env-file apikey --rm -t weather:latest [-h] --weather {shine,rain}