#Redis# 现在基本上已经是开发的标配了, 今天在学习下Redis, 发现使用Homebrew , 不仅可以安装, 还可以用来启动和停止Redis, 真是太方便了!

Redis（Remote Dictionary Server )，即远程字典服务，是一个开源的使用ANSI C语言编写、支持网络、可基于内存亦可持久化的日志型、Key-Value数据库，并提供多种语言的API。
从2010年3月15日起，Redis的开发工作由VMware主持。
从2013年5月开始，Redis的开发由Pivotal赞助。
本文预览:介绍了取消Homebrew auto update的方法, 加快homebrew的响应速度介绍了plist文件介绍了launchctl的作用介绍了使用brew services start/stop redis的用法使用Homebrew安装Redis在Mac 平台上, 安装软件, 用Homebrew还是比较方便的$ brew install redis这里需要吐槽的是, 这个Homebrew 每次在安装的时候, 最开始先要更新(update) 一下, 这个速度实在是太慢了! 不知道是国内网络原因还是设计问题, 每次都得等一会, 真是忍不了!看看在最开始Homebrew 都干了啥:$ brew install redis Updating Homebrew...==> Auto-updated Homebrew!Updated 1 tap (homebrew/cask).==> New Casksaccordance evkey miniforge skychartairbuddy f-bar mouse-fix slippi-dolphinaldente fawkes mubu smultronalipay-development-assistant finisher-fluxx munkiadmin space-saveraround finisher-micro mxsrvs spacemanastah-uml finisher-neo n1ghtshade spark-ar-studioatemosc finisher-voodoo nault spotteratomic-wallet font-smoothing-adjuster neat-reader startaudiogridder-plugin foobar2000 nuage stringzaudiogridder-server forticlient-vpn okta-advanced-server-access supersliceraural fspy operator swiftbarbanksiagui futubull opgg tencent-docsbleunlock fvim osculator textbuddybluesnooze gather oss-browser the-archivebluewallet gdat parsify the-unofficial-homestuck-collectionbome-network goldenpassport pathephone tradingviewbrewlet google-drive pibar trojanxcakebrewjs grid pictogram twobirdcelestia helo pika ultdatacinco imdone plasticscm-cloud-edition unclackcinderella imobie-m1-app-checker pokemon-trading-card-game-online uniflashcircuitjs1 infinity pragli veepnclicker-for-netflix intellidock prezi-video vine-serverclicker-for-youtube internxt-drive ptpwebcam vofa-pluscode-composer-studio jandi-statusbar radicle-upstream volantacog jellybeansoup-netflix ray wannianlicolorwell kekaexternalhelper raycast waterfoxcuriosity kieler reamp webexcurseforge kiwi-for-gmail redream webulldaedalus-testnet kyokan-bob remnote wolfram-enginedeadbeef lightform rhino xcodesdecloner lightkey scrapp xournal-plus-plusdeskreen little-navmap sengi yesplaymusicdevbook locationsimulator shearwater-cloud youtube-downloaderdevutils macfuse signet zecwallet-litedigital mailtrackerblocker silicon zulufxdnagedcom mathinspector silicon-info zy-playerduckstation megax simplelink-msp432-sdkdyalog melonds simplelink-msp432e4-sdkepoccam micro-sniff sitesucker-pro==> Updated CasksUpdated 3074 casks.==> Deleted Casksableton-live evom insomnia-designer mist racket-cs teamspeak-clientarchi facebook-ios-sdk irip monogame rhinoceros waterfox-currentarrayfire fractal-bot jeromelebel-mongohub oni ringtones webex-teamsbarxtemp futuniuniu kekadefaultapp openxcom ripit yyetsclashxr gfortran kode54-cog pins scaleftdisablemonitor gifs master-password project-slippi-dolphin softu2feventstore google-hangouts mega protonmail-unofficial tagaliciousWarning: Treating redis as a formula. For the cask, use homebrew/cask/redis难道这也是为程序员#摸鱼#提供机会吗?~~ 这么一想心情就好多了[呲牙][呲牙].不过网上也提供了停止自动更新的方法, 在安装的时候,直接安装:HOMEBREW_NO_AUTO_UPDATE=1 brew install redis或者修改shell的配置:--- Bash ---$ vim ~/.bashrcexport HOMEBREW_NO_AUTO_UPDATE=1--- Zsh ---$ vim ~/.zshrcexport HOMEBREW_NO_AUTO_UPDATE=1使用Source 来立刻更改:$ source ~/.bashrc $ source ~/.zshrc下面来安装一个iptable2mac来试试:$ brew install iproute2mac ==> Downloading https://homebrew.bintray.com/bottles/python%403.9-3.9.1_6.big_sur.bottle.tar.gz==> Downloading from https://d29vzk4ow07wi7.cloudfront.net/48d123683fa125de9f02f7777683edda40e998f0e2dca492024c00bb######################################################################## 100.0%==> Downloading https://github.com/brona/iproute2mac/releases/download/v1.3.0/iproute2mac-1.3.0.tar.gz######################################################################## 100.0%-#O#- # # ######################################################################## 100.0%看, 是不是快了很多!配置Redis 启动选项安装完之后, 需要简单配置一下Redis的启动:ln -sfv /usr/local/opt/redis/.plist ~/Library/LaunchAgents等下, 什么是plist? 这有什么用?看看官方的解释:

.plist是应用程序的“首选项”文件，其中保存了其首选项设置。
通过丢弃然后重新启动应用程序，您摆脱了可能已损坏的旧用户设置首选项。
这通常用于纠正用户可能遇到的应用程序问题。
其实说白了, plist 有点像Window的注册表,就是我们在Mac上使用软件的时候, 基本每个软件都会有一个Preference( 首选项)的菜单, 在这个菜单上可以增加一些自定义设置.明白了plist的作用之后, 可以来看看Redis的plist 文件的内容:<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd"><plist version="1.0"> <dict> <key>KeepAlive</key> <dict> <key>SuccessfulExit</key> <false/> </dict> <key>Label</key> <string>homebrew.mxcl.redis</string> <key>ProgramArguments</key> <array> <string>/usr/local/opt/redis/bin/redis-server</string> <string>/usr/local/etc/redis.conf</string> <string>--daemonize no</string> </array> <key>RunAtLoad</key> <true/> <key>WorkingDirectory</key> <string>/usr/local/var</string> <key>StandardErrorPath</key> <string>/usr/local/var/log/redis.log</string> <key>StandardOutPath</key> <string>/usr/local/var/log/redis.log</string> </dict></plist>这个就是一个xml文件, 放到哪里才能起作用呢? 来看命令:$ ln -sfv /usr/local/opt/redis/.plist ~/Library/LaunchAgents为啥要放到~/Library/LaunchAgents这里面呢? 这就涉及到launchctl 这个工具的使用了.launchctl 是什么呢?

launchctl是一个统一的服务管理框架，可以启动、停止和管理守护进程、应用程序、进程和脚本等。
launchctl是通过配置文件--plist文件来指定执行周期和任务的。
看明白了吧, launchctl 作用就跟crontab 差不多, 可以启动和调度别的程序, 不过launchctl需要plist 文件的配合.plist脚本一般存放在以下目录：/Library/LaunchDaemons -->系统启动之后，即使用户不登陆系统也会被执行/Library/LaunchAgents -->用户登陆系统后才会被执行更多的plist存放目录：~/Library/LaunchAgents 由用户自己定义的任务项/Library/LaunchAgents 由管理员为用户定义的任务项/Library/LaunchDaemons 由管理员定义的守护进程任务项/System/Library/LaunchAgents 由Mac OS X为用户定义的任务项/System/Library/LaunchDaemons 由Mac OS X定义的守护进程任务项在这里, 我们需要把redis的plist文件放到~/Library/LaunchAgents目录, 也就是$ ln -sfv /usr/local/opt/redis/.plist ~/Library/LaunchAgents启动Redis下面开始启动Redis, 也有几种方法.最简单的方法, 还是使用Homebrew:$ brew services start redis ==> Successfully started `redis` (label: homebrew.mxcl.redis)Homebrew services 有什么功能? 打开help看看:$ brew services --help Usage: brew services [subcommand]Manage background services with macOS' launchctl(1) daemon manager.If sudo is passed, operate on /Library/LaunchDaemons (started at boot).Otherwise, operate on ~/Library/LaunchAgents (started at login).[sudo] brew services [list]: List all managed services for the current user (or root).[sudo] brew services run (formula|--all): Run the service formula without registering to launch at login (or boot).[sudo] brew services start (formula|--all): Start the service formula immediately and register it to launch at login(or boot).[sudo] brew services stop (formula|--all): Stop the service formula immediately and unregister it from launching atlogin (or boot).[sudo] brew services restart (formula|--all): Stop (if necessary) and start the service formula immediately and registerit to launch at login (or boot).[sudo] brew services cleanup: Remove all unused services. --all Run subcommand on all services. -d, --debug Display any debugging information. -q, --quiet Make some output more quiet. -v, --verbose Make some output more verbose. -h, --help Show this message.可见, brew service 就是结合launchctl 框架, 来实现对程序的启动和停止, 帮助文档中还提到, 如果命令行前面使用sudo, 就使用系统级目录/Library/LaunchDaemons, 否则就是当前用户级别目录~/Library/LaunchAgents.Homebrew 用起来真香啊!如果不用Homebrew, 那就稍微麻烦点:$ launchctl load ~/Library/LaunchAgents/homebrew.mxcl.redis.plist使用launchctl 停止Redis:$ launchctl unload ~/Library/LaunchAgents/homebrew.mxcl.redis.plist连launchctl 也不用, 就用最原生的工具!$ redis-server /usr/local/etc/redis.conf本机验证RedisRedis 运行在本机6379 端口, 可以直接使用redis-cli来查看:$ redis-cli 127.0.0.1:6379> pingPONG停止Redis:简单的使用homebrew services 就可以:$ brew services stop redis Stopping `redis`... (might take a while)==> Successfully stopped `redis` (label: homebrew.mxcl.redis)

草长莺飞, 正是学习之时!

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