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Kiryl Plyashkevich kirylrb

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absyah / A helpful ActiveRecord setting only 1 person has ever used

Created August 2, 2019 03:23

Nate Berkopec's Ruby Performance Newsletters

	A memory-saving ActiveRecord setting has been used by just one application ever, according to GitHub
	There's a common performance problem in many Rails background jobs.

	Background jobs often do operations across large sets of data. Basically, they do silly things like User.all.each(&:send_daily_newsletter).

	So, there's a problem with that query. In development and test environments, User.all will probably return a few rows, maybe a dozen at most. Most developers have extremely limited seed data on their local machines.

	In production, however, User.all will probably return quite a few rows. Depending on the app you work on, maybe a few hundred thousand.

	There's a tiiiiiny issue with a result set that returns 100,000 rows, and it's not just that the SQL query will take a long time to return. It will have irreversible effects on your Ruby app too!

bmatcuk / create-usb.sh

Created May 30, 2019 04:38

Creating a Bootable Windows USB from ISO on a Mac

	# First, we need to find our device. BEFORE inserting your USB drive, run the
	# following:
	diskutil list

	# This will output a bunch of info about all of the disk drives connected to
	# your Mac. Each entry will have a header in the form "/dev/diskX", where X is
	# some number starting at 0. Now, insert your USB drive and run the command
	# again. You should see a new entry. Make note of the name (ie, /dev/diskX).
	diskutil list

skanev / rubocop.rb

Last active February 12, 2025 02:36

A Rubocop wrapper that checks only added/modified code

	#!/usr/bin/env ruby

	# A sneaky wrapper around Rubocop that allows you to run it only against
	# the recent changes, as opposed to the whole project. It lets you
	# enforce the style guide for new/modified code only, as opposed to
	# having to restyle everything or adding cops incrementally. It relies
	# on git to figure out which files to check.
	#
	# Here are some options you can pass in addition to the ones in rubocop:
	#

anilshanbhag / hosts

Created November 21, 2013 05:47

Hosts file to prevent google / youtube ads Paste the contents into /etc/hosts file in linux / mac