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Git Commit Style Guide

Inspiration: Deis Commit Style Guide

I often quote Deis in sections below.

Motivation

It makes going back and reading commits easier. It also allows you to spend less time thinking about what your commit message should be.

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Semantic Commit Messages

See how a minor change to your commit message style can make you a better programmer.

Format: <type>(<scope>): <subject>

<scope> is optional

Example

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from django.contrib.auth.mixins import LoginRequiredMixin


class SetUserMixin(LoginRequiredMixin):
    """
    Automatically add `self.request.user` to a specified `user_field`. `use_field` defaults to "user"
    """

    user_field = "user"

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class BlogForm(GetRequestFromFormMixin, forms.ModelForm):
    class Meta:
        model = Blog
        fields = ("name, description",)

    def clean(self):
        print(self.request) # we can now access the request!
        return super().clean()

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Common Django Pitfalls

This contains a collection of common errors people make when coding Django apps, and how to fix them.

Important Strategies for preventing pitfalls

1. Always do one thing at a time and test it. Make a single change, test it for errors, before moving on to the next thing.
2. When trying to fix an error, only change one thing at a time, If the error message does not change, undo that change and try something else.
3. If you discover you haven't saved a file, and that's causing an error, save the file and try again and pay attention to any new errors. The original error isn't worth worrying about until you have saved everything

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# 
# ddcutil https://www.ddcutil.com/
#
# If you don't like commands there's a GUI available too: https://www.ddcutil.com/#ddcui


# 1 Getting our monitors

ddcutil detect
# This will return the monitors detected by ddcutil, we need this first in case we only want to change a single monitor

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PSQL

Magic words:

psql -U postgres

Some interesting flags (to see all, use -h or --help depending on your psql version):

• -E: will describe the underlaying queries of the \ commands (cool for learning!)
• -l: psql will list all databases and then exit (useful if the user you connect with doesn't has a default database, like at AWS RDS)

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Docker compose as a systemd unit

Create file /etc/systemd/system/[email protected]. SystemD calling binaries using an absolute path. In my case is prefixed by /usr/local/bin, you should use paths specific for your environment.

[Unit]
Description=%i service with docker compose
PartOf=docker.service
After=docker.service