Andrey2G’s gists

Andrey2G / GetHashCode.cs

Last active November 12, 2022 21:26

Overriding GetHashCode

	public class MyValueObject:ValueObject<MyValueObject>
	{
	public int field1{get;}
	public double field2{get;}
	public string field3{get;}

	public override int GetHashCode()
	{
	//don't forget to check fields for null
	unchecked

Andrey2G / optomize-docker-desktop-wsl-ext4-vhdx-file.ps

Created September 18, 2022 19:44

When you working with Docker Desktop for a long time you will found that the file ext4.vhdx increasing the size and in some cases it happen very fast. You are also can click on Clean/Purge data on Docker Desktop side.

	#stop Docker Desktop and wait when it completely stopped
	#Run it as Administrator
	Optimize-VHD -Path $ENV:UserProfile\AppData\Local\Docker\wsl\data\ext4.vhdx -Mode Full

Andrey2G / program.cs

Last active March 31, 2022 13:01

Updating Inbound rules in specified Security Group (AWS EC2)

	using Amazon;
	using Amazon.EC2;

	const string CREDENTIALS_PROFILE = "mine";
	const string SECUTIRY_GROUP = "sg-XXXXXXXXX";
	const string MATCH_PHRASE = "any part of description";
	const string RULE_DESCRIPTION = "new description";
	RegionEndpoint region=Amazon.RegionEndpoint.USEast1;

	using var httpClient = new HttpClient();

Andrey2G / encoding.txt

Last active November 13, 2024 02:59

Video Encoding with multiple resolutions

	ffmpeg -i "c:/videos/sample.mp4
	-map 0:v:0 -map 0:a:0 -map 0:v:0 -map 0:a:0 -map 0:v:0 -map 0:a:0
	-c:v libx264 -crf 22 -c:a aac -ar 48000
	-filter:v:0 scale=w=480:h=360 -maxrate:v:0 600k -b:a:0 64k
	-filter:v:1 scale=w=640:h=480 -maxrate:v:1 900k -b:a:1 128k
	-filter:v:2 scale=w=1280:h=720 -maxrate:v:2 900k -b:a:2 128k
	-var_stream_map "v:0,a:0,name:360p v:1,a:1,name:480p v:2,a:2,name:720p"
	-preset slow -hls_list_size 0 -threads 0 -f hls -hls_playlist_type event -hls_time 3
	-hls_flags independent_segments -master_pl_name "name-pl.m3u8"
	"c:/videos/encoded/name-%v.m3u8"

Andrey2G / Restoring TFS Database without ldf files.sql

Last active January 25, 2019 14:40

restoring TFS Database on the other server without ldf files

	USE master
	GO

	CREATE DATABASE Tfs_DefaultCollection
	GO
	ALTER DATABASE Tfs_DefaultCollection SET OFFLINE
	GO

	-- NOW Delete Tfs_DefaultCollection mdf and ldf files
	-- AND copy mdf you need to restore

Andrey2G / Extensions.ReadableTime.cs

Created April 22, 2017 10:13

	public static string ToReadableTime(this DateTime value)
	{
	var ts = new TimeSpan(DateTime.UtcNow.Ticks - value.Ticks);
	double delta = ts.TotalSeconds;
	if (delta < 60)
	{
	return ts.Seconds == 1 ? "one second ago" : ts.Seconds + " seconds ago";
	}
	if (delta < 120)
	{

Andrey2G / DelayedAutostart.ps1

Created March 15, 2017 20:19

Powershell: Services: support Automatic (Delayed Start)

	#https://msdn.microsoft.com/powershell/reference/5.1/microsoft.powershell.management/Set-Service
	#There is no option Delayed autostart in StartupType
	#possible solutions:
	#1. start sc
	$Service="My service"
	sc.exe Config $Service Start= Delayed-Auto

	#2. set corresponded property in regedit
	#see https://blogs.technet.microsoft.com/askperf/2008/02/02/ws2008-startup-processes-and-delayed-automatic-start/
	Set-ItemProperty -Path "Registry::HKLM\System\CurrentControlSet\Services\$Service" -Name "DelayedAutostart" -Value 1 -Type DWORD

Andrey2G / executeRedisCommandInChunks.lua

Last active February 20, 2018 00:35

Redis, LUA, execute Redis command in chunks

	-- to avoid the problem with unpack ("too many results to unpack")
	-- we can increase LUAI_MAXCSTACK in luaconf.h https://www.lua.org/source/5.1/luaconf.h.html
	-- or execute the command with using table.unpack (https://www.lua.org/manual/5.1/manual.html#pdf-table.unpack) in chunks by specific length
	-- table.merge - separated function to merge two tables
	-- size of args should be >4000 (chunk length)
	local executeRedisCommandInChunks = function (command, key, args)
	local results = {}
	local chunkResult = {}
	local args_len = #args
	-- chunk length (any positive value less then 8000)

Andrey G. Andrey2G