dmotylev’s gists

dmotylev / install.sh

Last active August 29, 2015 14:08

dot files: git-free install

curl -Ls http://git.io/... | tar xzs '/dmotylev-dotfiles-[a-f[:digit:]]*/dotfiles/' && dotfiles/bootstrap

dmotylev / snippet

Created December 11, 2014 16:15

shell snippet

	#!/bin/bash

	set -o nounset
	set -o privileged
	set -o errtrace

	export PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin

	readonly LOG_TS_FMT='+%Y-%m-%d %H:%M:%S'

dmotylev / jenkins-config-backup

Created December 18, 2014 16:36

Builds a jenkins-config.tar.gz in current directory. The archive includes full JENKINS_HOME but builds/ and workspaces/.

	#!/bin/sh
	readonly jenkins_data=/var/lib/jenkins

	readonly jenkins_data_escaped=$(echo $jenkins_data \| sed -E 's/\//\\\//g')
	readonly filelist=$(mktemp)

	find $jenkins_data \|
	sed -E "
	s/^$jenkins_data_escaped\///;
	/^${jenkins_data_escaped}$/d;

dmotylev / bash_template_engine.sh

Last active August 29, 2015 14:11

simple bash template engine

	#!/usr/bin/env bash

	if ! [[ ${BASH_VERSINFO[0]} -ge 4 && ${BASH_VERSINFO[1]} -ge 2 ]]; then
	echo "$(basename $0): bash version >= 4.2 required"
	exit 1
	fi

	#
	# expands {{varname}} to varvalue
	#

dmotylev / latency.txt

Created December 28, 2015 20:31 — forked from jboner/latency.txt

Latency Numbers Every Programmer Should Know

	Latency Comparison Numbers
	--------------------------
	L1 cache reference 0.5 ns
	Branch mispredict 5 ns
	L2 cache reference 7 ns 14x L1 cache
	Mutex lock/unlock 25 ns
	Main memory reference 100 ns 20x L2 cache, 200x L1 cache
	Compress 1K bytes with Zippy 3,000 ns
	Send 1K bytes over 1 Gbps network 10,000 ns 0.01 ms
	Read 4K randomly from SSD* 150,000 ns 0.15 ms

dmotylev / hostnamegen

Last active August 14, 2017 19:31

A random Heroku-like hostname generator (bash)

	#!/usr/bin/env bash
	# original gist (javascript) https://gist.github.com/afriggeri/1266756
	readonly ADJECTIVES=("autumn" "hidden" "bitter" "misty" "silent" "empty" \
	"dry" "dark" "summer" "icy" "delicate" "quiet" "white" "cool" "spring" \
	"winter" "patient" "twilight" "dawn" "crimson" "wispy" "weathered" "blue" \
	"billowing" "broken" "cold" "damp" "falling" "frosty" "green" "long" "late" \
	"lingering" "bold" "little" "morning" "muddy" "old" "red" "rough" "still" \
	"small" "sparkling" "throbbing" "shy" "wandering" "withered" "wild" "black" \
	"young" "holy" "solitary" "fragrant" "aged" "snowy" "proud" "floral" \
	"restless" "divine" "polished" "ancient" "purple" "lively" "nameless")

dmotylev / worm.go

Created April 13, 2018 13:51

Write once read many object

	// Provides Write once read many (WORM) primitives
	package worm

	import (
	"sync"
	)

	// Object could be used to store interface{}
	// Object is safe for concurrent usage
	type Object struct {

dmotylev / type_test.go

Last active June 20, 2018 10:47

Go's test func template

	func TestType_TestFunc(t *testing.T) {
	tests := []struct {
	name string
	wantErr bool
	}{
	{"test", false},
	}

	const wantTest = -1
	for testNo, test := range tests {

dmotylev / main.go

Created January 22, 2019 10:30

service helpers

	func WaitShutdownRequest(f func(os.Signal)) {
	signals := make(chan os.Signal)
	signal.Notify(signals, syscall.SIGINT, syscall.SIGTERM)
	f(<-signals)
	}

	func CleanUp(closers ...func()) {
	for _, f := range closers {
	f()
	}

dmotylev / main.go

Created April 1, 2019 13:57

main.go template for cli tool or server

Dmitry Motylev dmotylev