Marek Wywiał onjin

Feature toggles types

Short memo from:

https://martinfowler.com/articles/feature-toggles.html

Release Toggles

For not finished / not tested features

Configuration type: static - per environment, f.i. enabled only on test/stage
Lifetime: Short - until feature is finished / tested

notes to The Discipline of Finishing by Conor Neill

https://www.youtube.com/watch?v=zXCiv4sc5eY

Failure = Repeating the bad decisions

Success = Consistency on good decisions

Rule of success = Delay gratification!

requirements

Install https://github.com/jrfonseca/gprof2dot

Run profiler

$ python -m cProfile -o profiler.pstats ./some/python/code.py
$ gprof2dot -f pstats profiler.pstats | dot -Tpng -o profiler.png  # generate PNG calltree image
$ pyprof2calltree -i profiler.pstats -k # debug with kcachegrind

modularity

Notes to modularity talk:

https://www.youtube.com/watch?v=2oJrjyp7GHE

monolit first

create monolit - learn the domain
move to modularity - discover boundaries

Tests for ports & adapters

Unit tests are testing kernel
Integration tests are testing ports
Component tests are testing adapters
System tests are testing multiple systems (hexagons)

https://speakerdeck.com/skmetz/magic-tricks-of-testing-railsconf?slide=187

	#!/usr/bin/env bash

	set -eu

	pane_fmt="#{pane_id} #{pane_in_mode} #{pane_input_off} #{pane_dead} #{pane_current_command}"
	tmux list-panes -s -F "$pane_fmt" \| awk '
	$2 == 0 && $3 == 0 && $4 == 0 && $5 ~ /(bash\|zsh\|ksh\|fish)/ { print $1 }
	' \| while read -r pane_id; do
	# renew environment variables according to update-environment tmux option
	# also clear screen

	#!/usr/bin/env python
	import argparse
	import getpass
	import sys
	from contextlib import contextmanager
	from distutils.util import strtobool


	def yes_or_no(question, default='no'):
	"""Ask question and wait for yes/no answer.

	# Rebind prefix key
	unbind C-b
	set-option -g prefix C-a
	bind-key C-a send-prefix

	# Pretty colors
	# set -g status-bg blue
	# set -g status-fg white

	# Bindings

	#!/bin/bash

	xhost +
	docker run \
	--rm \
	-e DISPLAY=$DISPLAY \
	-v /tmp/.X11-unix:/tmp/.X11-unix \
	-v $(pwd)/:/data/ \
	-ti eferro/freemind /freemind.sh $(id -u) $*

	if [[ -n "$PS1" ]] && [[ -z "$TMUX" ]] && [[ -n "$SSH_CONNECTION" ]]; then
	tmux attach-session -t ssh_tmux \|\| tmux new-session -s ssh_tmux
	fi