stormslowly

"use strict";

// `f` is assumed to sporadically fail with `TemporaryNetworkError` instances.
// If one of those happens, we want to retry until it doesn't.
// If `f` fails with something else, then we should re-throw: we don't know how to handle that, and it's a
// sign something went wrong. Since `f` is a good promise-returning function, it only ever fulfills or rejects;
// it has no synchronous behavior (e.g. throwing).
function dontGiveUp(f) {
    return f().then(
        undefined, // pass through success

stormslowly

周五node分享会，大家有空提前准备一些东西

(1) 先到下面的链接 找对应文件的node安装文件安装。

http://nodejs.org/dist/v0.10.22/

在命令行

$ node -v

stormslowly

/**
 * steal from: https://raw.githubusercontent.com/lindenb/jsandbox/master/src/sandbox/MakeGraphDependencies.java
 * thanks a lot
 */
 
package sandbox;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

stormslowly

iPhone 通过微信内置浏览器访问网页时得到 User Agent 是：

Mozilla/5.0 (iPhone; CPU iPhone OS 6_1_3 like Mac OS X) AppleWebKit/536.26 (KHTML, like Gecko) Mobile/10B329 MicroMessenger/5.0.1

Android 通过微信内置浏览器访问网页时得到 User Agent 是：

Mozilla/5.0 (Linux; U; Android 2.3.6; zh-cn; GT-S5660 Build/GINGERBREAD) AppleWebKit/533.1 (KHTML, like Gecko) Version/4.0 Mobile Safari/533.1 MicroMessenger/4.5.255

stormslowly

STEP 0

install HTML-XML-utils and w3m

STEP 1

in your .bashrc add below alias

alias cf="curl -Ls http://www.commandlinefu.com/commands/random  |hxprune -c sample-output | hxprune -c meta|hxprune -c votes |hxprune -c options |hxprune -c window-bar  | hxnormalize  -x | hxselect -s '\n' '.terminal-display'  | w3m -dump   -T text/html"

stormslowly

'use strict';

var toCompelition = function(signature) {
  /* app.get(name) */
  var apiReg = /([a-zA-Z.]+)\(([\w\s\[\]\.\|,]*)\)/g;
  var varReg = /([a-zA-Z.]+)/g;
  var com = null;
  var matchs = apiReg.exec(signature);

  if (matchs) {

stormslowly

someCMD | awk 'BEGIN{cmd="date +%H:%M:%S.%N"} {cmd|getline D; close(cmd); print D,$0}'
"this way slow down the cmd execute try below

someCMD | awk '{print strftime("%H:%M:%S"),$0}'

stormslowly

'use strict';
var zlib = require('zlib');
var fs = require('fs');

var fileName = process.argv[2];
var buffer = fs.readFileSync(fileName);
zlib.unzip(buffer, function(_, buf) {
  // console.log(buf.toString('hex'));
  console.log(buf.toString());
});

stormslowly

var day  = 24*3600*1000;
var expiredTime = Date.now() - day *90;
var expiredDate = new Date(expiredTime);

var objectIdFromDate = function (date) {
	var idStr = Math.floor(date.getTime() / 1000).toString(16) + "0000000000000000";
	return new ObjectId(idStr);
};

db.tokens.remove({_id:{$lt:objectIdFromDate(expiredDate)}})

stormslowly

# you should download the files in m3u8 file first
ffmpeg -i the.file.m3u8 -acodec copy -vcodec copy  -y -loglevel info -bsf:a aac_adtstoasc -f mp4 your-mp4-file.mp4


# First 10 Minutes
ffmpeg -i VIDEO_SOURCE.mp4 -vcodec copy -acodec copy -ss 0 -t 00:10:00  VIDEO_PART_1.mpg
# Second 10 Minutes
ffmpeg -i VIDEO_SOURCE.mp4 -vcodec copy -acodec copy -ss 00:10:00 -t 00:20:00  VIDEO_PART_2.mpg
# Rest after the first 20 Minutes
ffmpeg -i VIDEO_SOURCE.mp4 -vcodec copy -acodec copy -ss 00:20:00  VIDEO_PART_3.mpg