torvalds TorvaldsDB

Read the PR description
Read through all the changes, considering the following questions.
- Is there anything you can praise about this PR? Start with praise.
- Are variable names brief but descriptive?
- Are new/changed functions no longer than a paragraph?
- Do all function parameters have default values where appropriate?
- Is the code clear and clean? (see Robert C. Martin's Clean Code)
- Is there enough documentation?
Does the programming style meet the requirements of the repository (PEP8 for python, google for c++, etc.)

Webpack

Webpack 配置文件放置在webpack.config.js中,

代码源码在 src/, 文件分布结构图(使用tree ./

├── src
│   ├── css
│   │   ├── iconfont.css
│ │ └── index.less

注意：本文内容适用于 Tmux 2.3 及以上的版本，但是绝大部分的特性低版本也都适用，鼠标支持、VI 模式、插件管理在低版本可能会与本文不兼容。

Tmux 快捷键 & 速查表 & 简明教程

启动新会话：

tmux [new -s 会话名 -n 窗口名]

恢复会话：

Project Title

One Paragraph of project description goes here

Getting Started

These instructions will get you a copy of the project up and running on your local machine for development and testing purposes. See deployment for notes on how to deploy the project on a live system.

Prerequisites

NERDTree

o.......Open files, directories and bookmarks....................|NERDTree-o|
go......Open selected file, but leave cursor in the NERDTree.....|NERDTree-go|
t.......Open selected node/bookmark in a new tab.................|NERDTree-t|
T.......Same as 't' but keep the focus on the current tab........|NERDTree-T|
i.......Open selected file in a split window.....................|NERDTree-i|
gi......Same as i, but leave the cursor on the NERDTree..........|NERDTree-gi|
s.......Open selected file in a new vsplit.......................|NERDTree-s|
gs......Same as s, but leave the cursor on the NERDTree..........|NERDTree-gs|

O.......Recursively open the selected directory..................|NERDTree-O|

	第一章青衫磊落险峰行

	青光闪动，一柄青钢剑倏地刺出，指向在年汉子左肩，使剑少年不等招用老，腕抖剑斜，剑锋已削向那汉子右颈。那中年汉子剑挡格，铮的一声响，双剑相击，嗡嗡作声，震声未绝，双剑剑光霍霍，已拆了三招，中年汉子长剑猛地击落，直砍少年顶门。那少年避向右侧，左手剑诀一引，青钢剑疾刺那汉子大腿。
	两人剑法迅捷，全力相搏。
	练武厅东坐着二人。上首是个四十左右的中年道姑，铁青着脸，嘴唇紧闭。下首是个五十余岁的老者，右手捻着长须，神情甚是得意。两人的座位相距一丈有余，身后各站着二十余名男女弟子。西边一排椅子上坐着十余位宾客。东西双方的目光都集注于场中二人的角斗。
	眼见那少年与中年汉子已拆到七十余招，剑招越来越紧，兀自未分胜败。突然中年汉子一剑挥出，用力猛了，身子微微一幌，似欲摔跌。西边宾客中一个身穿青衫的年轻男子忍不住“嗤”的一声笑。他随即知道失态，忙伸手按住了口。
	便在这时，场中少年左手呼一掌拍出，击向那汉子后心，那汉子向前跨出一步避开，手中长剑蓦地圈转，喝一声：“着！”那少年左腿已然中剑，腿下一个踉跄，长剑在地下一撑，站直身子待欲再斗，那中年汉子已还剑入鞘，笑道：“褚师弟，承让、承让，伤得不厉害么？”那少年脸色苍白，咬着嘴唇道：“多谢龚师兄剑下留情。”
	那长须老者满脸得色，微微一笑，说道：“东宗已胜了三阵，看来这‘剑湖宫’又要让东宗再住五年了。辛师妹，咱们还须比下去么？”坐在他上首的那中年道姑强忍怒气，说道：“左师果然调教得好徒儿。但不知左师兄对‘无量玉壁’的钻研，这五年来可已大有心得么？”长须老者向她瞪了一眼，正色道：“师妹怎地忘了本派的规矩？”那道姑哼了一声，便不再说下去了。
	这老者姓左，名叫子穆，是“无量剑”东宗的掌门。那道姑姓辛，道号双清，是“无量剑”西宗掌门。
	“无量剑”原分东、北、西三宗，北宗近数十年来已趋式微，东西二宗却均人才鼎盛。“无量剑”于五代后唐年间在南诏无量山创派，掌门人居住无量山剑湖宫。自于大宋仁过年间分为三宗之后，每隔五年，三宗门下弟子便在剑湖宫中比武斗剑，获胜的一宗得在剑湖宫居住五年，至第六年上重行比试。五场斗剑，赢得三场者为胜。这五年之中，败者固然极力钻研，以图在下届剑会中洗雪前耻，胜者也是丝毫不敢松懈。北宗于四十年前获胜而入住剑湖宫，五年后败阵出宫，掌门人一怒而率领门人迁往山西，此后即不再参预比剑，与东西两宗也不通音问。三十

	http://stackoverflow.com/questions/22667401/postgres-json-data-type-rails-query
	http://stackoverflow.com/questions/40702813/query-on-postgres-json-array-field-in-rails

	#payload: [{"kind"=>"person"}]
	Segment.where("payload @> ?", [{kind: "person"}].to_json)

	#data: {"interest"=>["music", "movies", "programming"]}
	Segment.where("data @> ?", {"interest": ["music", "movies", "programming"]}.to_json)
	Segment.where("data #>> '{interest, 1}' = 'movies' ")
	Segment.where("jsonb_array_length(data->'interest') > 1")

	# Full repo:
	# https://gitlab.com/mwelke/rails-async-example

	Future = Concurrent::Future

	class OperationController < ApplicationController
	def sync
	ops = [1, 2, 3]

	ops.each do \|n\|

	{
	"keys": ["tab"],
	"command": "expand_abbreviation_by_tab",

	// put comma-separated syntax selectors for which
	// you want to expandEmmet abbreviations into "operand" key
	// instead of SCOPE_SELECTOR.
	// Examples: source.js, text.html - source
	"context": [
	{