SCP002’s gists

SCP002 / filter.go

Last active July 3, 2022 19:35

Golang 1.18 (optionally lower): concurrent Filter funtion example. Keeps empty elements and original order. Using Worker Pool.

	// Golang >= 1.18 (uses generics).
	// Golang < 1.18 without generics (replace T with explicit type in PoolFilter function signature).

	package main

	import (
	"sort"

	"github.com/alitto/pond"
	)

SCP002 / spawn.js

Last active April 21, 2021 06:50

Node.js: Spawn process. Keep StdOut and StdErr in the original order. Display output real time. Capture output on exit.

	// Based on answer from https://stackoverflow.com/questions/57046930/node-js-spawn-keep-stdout-and-stderr-in-the-original-order

	const { spawn } = require('child_process');

	const options = {
	shell: true, // Keep shell: true to redirect StdErr to StdOut.
	stdio: [
	'inherit', // StdIn. Fixes "ERROR: Input redirection is not supported, exiting the process immediately" on Windows.
	'pipe', // StdOut.
	'pipe', // StdErr.

SCP002 / json.go

Last active March 15, 2022 22:04

Golang: Marshal & Unmarshal partially known / dynamic JSON. Using structs (type safe).

	// To stop json.Marshal from using HTMLEscape and adding trailing newline, see:
	// https://github.com/SCP002/jsonexraw

	package main

	import (
	"fmt"

	json "github.com/yaegashi/jsonex.go/v1"
	)

SCP002 / json.py

Last active April 26, 2021 13:19

Python: Dump & Load partially known / dynamic JSON. Using dataclasses (type safe).

	#!/usr/bin/python3
	# -- coding: utf-8 --

	# Requirements:
	# Python 3.7+
	# pip install dataclasses-json


	import dataclasses as dc
	import os

SCP002 / configure-ps1-context-menu.reg

Last active October 19, 2024 08:53

Windows Registry: Run .ps1 scripts with double click using pwsh (PowerShell 7). Including tweaks of context menu. See coments for description.

 Windows Registry Editor Version 5.00
 ; WARNING:
 ; Uses "%ProgramFiles%\PowerShell\7\pwsh.exe" as powershell path.
 ; You might want to change it to your own with default file path, like:
 ;
 ; @="\"C:\\ProgramFiles\\Powershell\\8\\pwsh.exe\" \"%1\""
 ;

SCP002 / json.ts

Last active April 7, 2021 20:25

TypeScript: Parse & Stringify partially known / dynamic JSON. Using classes (type safe).

	// npm install --save-dev class-transformer

	import 'reflect-metadata';

	import { classToPlain, deserialize, Exclude, Type } from 'class-transformer';

	const inpJsonStr: string = `
	{
	"topKnownKey": 1,
	"topUnknownKey": 2,

SCP002 / ProcessExample.java

Last active April 14, 2021 20:15

Java 8: Start process. Keep StdOut and StdErr in the original order. Display output real time character by character. Capture output on exit.

	package org.example;

	import java.io.IOException;
	import java.io.InputStream;
	import java.util.Scanner;

	public class ProcessExample {

	public static void main(String[] args) {
	ProcessBuilder pb = new ProcessBuilder();

SCP002 / JSONExample.java

Last active April 11, 2021 03:47

Java 13 (optionally 8): Decode & Encode partially known / dynamic JSON into classes. Require Jackson.

	/*
	* Java 13+ (Uses multi-line string).
	* Java 8+ without multi-line string (line 87).
	* Require Jackson dependency (Maven example; Add to <dependencies> in your pom.xml):
	* <dependency>
	* <groupId>com.fasterxml.jackson.core</groupId>
	* <artifactId>jackson-databind</artifactId>
	* <version>2.12.2</version>
	* </dependency>
	*/

SCP002 / FilterExample.java

Last active April 22, 2021 09:14

Java 8: concurrent Filter funtion example. Using Worker Pool.

	package org.example;

	import java.util.ArrayList;
	import java.util.Arrays;
	import java.util.List;
	import java.util.concurrent.*;


	abstract class ConcurrentFilter {

SCP002 / start_process.py

Last active March 12, 2025 07:48

Python: Start process. Keep StdOut and StdErr in the original order. Display output real time character by character. Capture combined output.

	#!/usr/bin/python3
	# -- coding: utf-8 --

	import dataclasses
	import io
	import subprocess
	import sys

	from collections.abc import Callable
	from typing import IO