devopstaku

Install

• place [autoconf.rb] (https://gist.github.com/devopstaku/e9ecf61f8f530ac16c54#file-autoconf-rb) into Formula folder: /usr/local/Library/Formula/
• run brew install autoconf

devopstaku

require 'formula'

class Autoconf < Formula
  url 'http://ftp.gnu.org/gnu/autoconf/autoconf-2.13.tar.gz'
  homepage 'http://www.gnu.org/software/autoconf/'
  sha1 'e4826c8bd85325067818f19b2b2ad2b625da66fc'
  def install
    system "./configure", "--program-suffix=213",
                          "--prefix=#{prefix}",
                          "--infodir=#{info}"

devopstaku

Prequire

• You need to have the js interpreter installed
• [Install autoconf-2.13] (https://gist.github.com/devopstaku/9d00722f00a09042b2ae)
• Getting the latest SpiderMonkey source code from Git
  • git clone https://github.com/mozilla/gecko-dev.git
  • cd gecko-dev/js/src
  • autoconf-2.13 ( Note that autoconf version 2.13 is required. No later version will work.)
  • mkdir build_OPT.OBJ
  • cd build_OPT.OBJ
• ../configure

devopstaku

FFMPEG=/opt/ffmpeg-live/bin/ffmpeg
for((;;))
do
    sleep 1
    FILENAME=stat123_for_eng_$(date +"%H%M%S").mp3
    echo "save audio into " $FILENAME
    $FFMPEG -f avfoundation -i ":0" -vn -acodec mp3 -b:a 96k -ar 44100 $FILENAME
done

devopstaku

The MIT License (MIT)
Copyright (c) 2013 Jamar Parris

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE S

devopstaku

$ bash < <(curl -s -S -L https://raw.githubusercontent.com/moovweb/gvm/master/binscripts/gvm-installer)
$ source ~/.gvm/scripts/gvm
$ gvm install go1.4
$ gvm use go1.4
$ gvm install go1.7.4
$ gvm use go1.7.4

devopstaku

#!/bin/bash
# A script to backup GitLab repositories.

GLAB_BACKUP_DIR=${GLAB_BACKUP_DIR-"gitlab_backup"}                   # where to place the backup files
GLAB_TOKEN=${GLAB_TOKEN-"YOUR_TOKEN"}                                # the access token of the account
GLAB_GITHOST=${GLAB_GITHOST-"gitlab.com"}                            # the GitLab hostname
GLAB_PRUNE_OLD=${GLAB_PRUNE_OLD-true}                                # when `true`, old backups will be deleted
GLAB_PRUNE_AFTER_N_DAYS=${GLAB_PRUNE_AFTER_N_DAYS-7}                 # the min age (in days) of backup files to delete
GLAB_SILENT=${GLAB_SILENT-false}                                     # when `true`, only show error messages
GLAB_API=${GLAB_API-"https://gitlab.com/api/v3"}                     # base URI for the GitLab API

devopstaku

var http = require("http"),
    url = require("url"),
    path = require("path"),
    fs = require("fs")
    port = process.argv[2] || 8888;

http.createServer(function(request, response) {

  var uri = url.parse(request.url).pathname
    , filename = path.join(process.cwd(), uri);

devopstaku

] wc -l domains.txt 
     783 domains.txt

] time go run domain_lookup_parallel.go

real	0m5.743s
user	0m0.359s
sys	0m0.355s

] time go run domain_lookup_sequential.go

devopstaku

• Go Concurrency Patterns: Context
  
• Package context
• Context
  
• Context is for cancelation
  
• Context isn’t for cancellation
  
• Revisiting context and http.Handler for Go 1.7
  

---

• Why context.Value matters and how to improve it