Pavel Yermolin Powell-v2

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Product-minded fullstack engineer with a keen interest in ML.

Powell-v2 / check_unused_deps.sh

Created March 15, 2019 15:30

Checks whether deps listed in package.json are in actual use and suggests removing those that are not used directly.

	for dep in $(jq -r ".dependencies \| keys \| .[]" package.json); do
	if ! grep "from .$dep." -Rq --exclude-dir="node_modules" .; then
	echo "you can probably remove $dep"
	fi
	done

Powell-v2 / post_merge_deps_update.sh

Last active January 5, 2025 08:52

Install any missing deps after merging in updates from remote.

	# capture info messages and any errors in a log file
	exec >> log/hooks-out.log 2>&1

	if git diff-tree --name-only --no-commit-id ORIG_HEAD HEAD \| grep -q 'package.json'; then
	echo "$(date): reinstalling deps since package.json changed"
	yarn > /dev/null
	else
	echo "$(date): no changes detected in package.json"
	fi

Powell-v2 / flatten.js

Created July 3, 2019 12:39

Flatten array without using native `flat()`.

	`use strict`
	const { isArray } = Array

	const deepFlatten = (array) => {
	if (!isArray(array)) {
	throw new Error(`Expecting array to process, instead got ${typeof array}.`)
	}

	return array.reduce((accumulator, element) =>
	[

Powell-v2 / update_deps.sh

Last active July 9, 2019 09:52

Updates all minor updates and patches. Useful if all versions in a project are exact.

	PACKAGES_TO_UPDATE=()

	function get_major_version { echo $(echo $1 \| grep -o -E '^[0-9]{1,2}'); }

	# https://stackoverflow.com/questions/1527049/how-can-i-join-elements-of-an-array-in-bash
	function join_by { local d=$1; shift; echo -n "$1"; shift; printf "%s" "${@/#/$d}"; }

	{
	while read package current wanted latest location
	do