Toshiki Inami peco8

Ruby の HTTP クライアントライブラリ Faraday が便利そう

API ラッパの開発には [RestClient gem][rest_client_gem] だとか
OAuth の必要なものは [Net/HTTP][net_http] + [OAuth gem][oauth_gem] を使ってた

[Twitter gem][twitter_gem] や [Instagram gem][instagram_gem] など API ライブラリのソースを読んでみると
[Faraday gem][faraday_gem] というものがよく使われてた

Locate the section for your github remote in the .git/config file. It looks like this:

[remote "origin"]
	fetch = +refs/heads/*:refs/remotes/origin/*
	url = [email protected]:joyent/node.git

Now add the line fetch = +refs/pull/*/head:refs/remotes/origin/pr/* to this section. Obviously, change the github url to match your project's URL. It ends up looking like this:

Bash-Style Curly Brace Expansion

Expands the curly-brace notation as supported by Bash.

expand "ab{c,d}e"
  => [ "abce", "abde" ]

expand "ab{c,d}e{1,2}"
 =&gt; [ "abce1", "abce2", "abde1", "abde2" ]

コマンドによる「負荷」の原因切り分け

この文章では、Linuxコマンド、sar, top, psを使って、一般的に負荷といわれるものの原因を切り分けることを目的とする。

そもそも負荷とは

「複数のタスクによるサーバリソースの奪い合いの結果に生じる待ち時間」を一言で表した言葉。OSのチューニングとは負荷の原因を知り、それを取り除くことにほかならない。

ボトルネックの見極め作業の大まかな流れ

ロードアベレージ（処理を実行したくても、実行できなくて待たされているプロセス（CPUの実行権限が与えられるのを待っている、またはディスクI/Oが完了するのを待っている）の数）を見る

The Ultimate Git Alias Setup

If you use git on the command-line, you'll eventually find yourself wanting aliases for your most commonly-used commands. It's incredibly useful to be able to explore your repos with only a few keystrokes that eventually get hardcoded into muscle memory.

Some people don't add aliases because they don't want to have to adjust to not having them on a remote server. Personally, I find that having aliases doesn't mean I that forget the underlying commands, and aliases provide such a massive improvement to my workflow that it would be crazy not to have them.

The simplest way to add an alias for a specific git command is to use a standard bash alias.

# .bashrc

	#! /usr/bin/env ruby
	# usage:
	# $ das_download.rb email password [download_directory]

	require 'mechanize'
	# gem 'mechanize-progressbar'

	email = ARGV[0] or raise('Please provide the email address for your account')
	password = ARGV[1] or raise('Please provide the password for your account')
	path = ARGV[2] \|\| './'

	#!/bin/bash

	LANG=ja_JP.utf8

	pid=$$
	date=`date '+%Y-%m-%d-%H_%M'`

	outdir="."

	if [ $# -le 1 ]; then

	file_to_disk = './tmp/large_disk.vdi'

	Vagrant::Config.run do \|config\|
	config.vm.box = 'base'

	config.vm.customize ['createhd', '--filename', file_to_disk, '--size', 500 * 1024]
	config.vm.customize ['storageattach', :id, '--storagectl', 'SATA Controller', '--port', 1, '--device', 0, '--type', 'hdd', '--medium', file_to_disk]
	end

	If you want your terminal vim to open files you double click, follow the following steps (MacOS only):

	1. Open Automator
	2. Select Application
	3. Copy the attached file
	4. Save and set as default for opening files

	Multiple files are opened in vim tabs.
	If there is already a vim instance running, files are opened in it.

	#!/usr/local/bin/ruby
	# アクセスログを1時間ごとに集計。アクセスタイプごとのアクセス数をTSV形式で出力する
	# usage : analyze_access_log.rb <YYYYMMDD> <access_log>...

	require 'json'
	require 'time'
	require 'pp'

	ANALYZE_DATE = ARGV.shift # YYYYMMDD