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//
//  Combine+Pairwise.swift
//
//  Created by Felix Mau on 17.05.21.
//  Copyright © 2021 Felix Mau. All rights reserved.
//

import Combine

extension Publisher {

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/**
 * I needed a property wrapper that fulfilled the following four requirements:
 *
 * 1. Values are stored in UserDefaults.
 * 2. Properties using the property wrapper can be used with SwiftUI.
 * 3. The property wrapper exposes a Publisher to be used with Combine.
 * 4. The publisher is only called when the value is updated and not
 *    when_any_ value stored in UserDefaults is updated.
 *
 * First I tried using SwiftUI's builtin @AppStorage property wrapper

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#!/usr/bin/env python
# -*- coding: utf-8 -*-

import re
from subprocess import Popen, PIPE
from subprocess import call

p = Popen(["xcrun","simctl","list","devices"], stdin=PIPE, stdout=PIPE, stderr=PIPE)
output, err = p.communicate(b"input data that is passed to subprocess' stdin")

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1) Generate a private key and certificate signing request:

openssl genrsa -out ios_distribution.key 2048
openssl req -new -key ios_distribution.key -out ios_distribution.csr -subj '/[email protected], CN=Example, C=US'

2) Upload CSR to apple at: https://developer.apple.com/account/ios/certificate/create
   - choose Production -> App Store and Ad Hoc

3) Download the resulting ios_distribution.cer, and convert it to .pem format:

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1) Generate a private key and certificate signing request:

openssl genrsa -out ios_distribution.key 2048
openssl req -new -key ios_distribution.key -out ios_distribution.csr -subj '/[email protected], CN=Example, C=US'

2) Upload CSR to apple at: https://developer.apple.com/account/ios/certificate/create
   - choose Production -> App Store and Ad Hoc

3) Download the resulting ios_distribution.cer, and convert it to .pem format:

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Methods of Signing Git Commits on MacOS

Last updated March 13, 2024

This Gist explains how to sign commits using gpg in a step-by-step fashion. Previously, krypt.co was heavily mentioned, but I've only recently learned they were acquired by Akamai and no longer update their previous free products. Those mentions have been removed.

Additionally, 1Password now supports signing Git commits with SSH keys and makes it pretty easy-plus you can easily configure Git Tower to use it for both signing and ssh.

For using a GUI-based GIT tool such as Tower or Github Desktop, follow the steps here for signing your commits with GPG.

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"""Print most frequent N-grams in given file.

Usage: python ngrams.py filename

Problem description: Build a tool which receives a corpus of text,
analyses it and reports the top 10 most frequent bigrams, trigrams,
four-grams (i.e. most frequently occurring two, three and four word
consecutive combinations).

NOTES

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Getting the Gist of GitHub Actions

Tutorial and tips for GitHub Actions workflows

Table of Contents

• Introduction
• Workflows and actions

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mvn archetype:generate                        \
-DarchetypeGroupId=org.apache.flink           \
-DarchetypeArtifactId=flink-quickstart-scala  \
-DarchetypeVersion=1.13.2                     \
-DgroupId=io.dev.flink                        \
-DartifactId=flink-scala-project              \
-Dversion=0.1                                 \
-DinteractiveMode=false

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How to setup your own CA with OpenSSL

For educational reasons I've decided to create my own CA. Here is what I learned.

First things first

Lets get some context first.