aleung’s gists

aleung / README.md

Last active September 1, 2020 05:36

Generate latest offline map for OsmAnd

Install

Install osmupdate and osmconvert into path.

cd ~/bin
wget -O - http://m.m.i24.cc/osmupdate.c | cc -x c - -o osmupdate 
wget -O - http://m.m.i24.cc/osmconvert.c | cc -x c - -lz -O3 -o osmconvert

aleung / console-output

Created June 13, 2017 08:06

Test of [async-local-storage](https://github.com/vicanso/async-local-storage) on Node.js 8.x

	Trace of ID 1
	1497340609369: Received request. ID: 1
	1497340609369: Step 1 1
	1497340610599: Step 2 1
	1497340610602: Response sent 1
	-----
	Trace of ID 2
	1497340606575: Received request. ID: 2
	1497340606575: Step 1 2
	1497340612700: Step 2 2

aleung / user.js

Last active June 8, 2017 09:26

User script to slideshow a serial of webpages in loop. https://greasyfork.org/en/scripts/30426-webpages-slideshow

	// ==UserScript==
	// @name Webpages slideshow
	// @namespace https://github.com/aleung/
	// @version 1.1.0
	// @description Loop display a serial of webpages. Display time for each page can be set.
	// @author Leo Liang
	// @license MIT License
	// @include *
	// @noframes
	// @require https://openuserjs.org/src/libs/sizzle/GM_config.js

aleung / auto-number-heading.css

Last active February 20, 2021 14:48

Add auto header numbering to Typora them. Append to existing theme. https://stackoverflow.com/questions/19999696/are-numbered-headings-in-markdown-rdiscount-possible/43625080#43625080

	/**************************************
	* Header Counters in TOC
	**************************************/

	/* No link underlines in TOC */
	.md-toc-inner {
	text-decoration: none;
	}

	.md-toc-content {

aleung / du.sh

Last active March 13, 2017 03:34

One line shell scripts

	# size of immediate sub-folders

	du -d1 -BM \| sort -g

aleung / mergelog.js

Created November 2, 2016 11:30

Merge consul agent logs which are fetched by Ansible

	#!/usr/bin/env node

	"use strict";

	const fs = require('fs');
	const readline = require('readline');

	const logLineRegexp = /\s+(.+?)\[(.+?)\](.*)/;

	function processFile(file, host) {

aleung / ipaddr.es

Last active November 5, 2015 03:43

Get local IP address of specific NIC in node.js

	var _ = require('lodash');
	var os = require('os');

	function getIpAddr(nicName) {
	let ifaces = os.networkInterfaces();
	let iface = _.find(ifaces[nicName], iface => { return iface.family === 'IPv4' });
	return _.result(iface, 'address');
	}

	module.exports = _.memoize(getIpAddr);

aleung / ActiveCountMetric.java

Created November 26, 2013 09:12

Invocation metric bases on codahale (Yammer) Metrics. 这是在Messaging性能测试时使用的metrics，记录了代码块调用的throughput（TPS，latency）和active count（并发数），数据每分钟写入csv格式文件。用try + finally的方式对调用进行拦截检测，代码有侵入性。当时是测试使用，这样写起来最快。

	public interface ActiveCountMetric {
	void inc();
	void dec();
	}

aleung / Scheduler

Created May 27, 2013 10:48

A simple Java scheduler, which execute scheduled tasks in current thread.

	package leoliang.common;

	import com.google.common.base.Preconditions;

	/**
	* Usage example: Run 15 times in every 250ms, begins at 5 seconds later.
	*
	* <pre>
	Scheduler.every(250, Scheduler.TimeUnit.MILLISECOND)
	.beginsAt(System.currentTimeMillis() + 5000)

aleung / remove_conflict_non_unique_snapshots.rb

Created March 28, 2013 04:05

I have Maven (Artifactory) repository which was configured to store non-unique snapshots. When the configure was changed to store unique (with time-stamp) snapshots, if a new snapshot is deployed, there will be both unique snapshot and non-unique snapshot artifact of same version exists. If it happens, the snapshot artifact will be unable to dow…

	#!/bin/env ruby

	# --- Configuration ---------------------------------

	$age_days = 3

	# The repository to be cleaned.
	$repo = 'repo-name'

	$user = 'repo-admin'

Leo Liang aleung

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