前期准备
CocoaPods的安装需要Ruby环境，Mac系统都自带Ruby，通过下面终端命令查看Ruby版本：
ruby -v
192:~ ***$ ruby -v
ruby 2.3.7p456 (2018-03-28 revision 63024) [universal.x86_64-darwin18]
CocoaPods支持的Ruby最低版本是2.2.2，如果自己的版本低于2.2.2就需要更新升级Ruby：
sudo gem update --system
更换Ruby镜像
Ruby默认的源地址是国外网络地址，通过下面终端命令查看当前镜像地址：
gem sources -l
~$gem sources -l
/System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/lib/ruby/2.3.0/universal-darwin18/rbconfig.rb:215: warning: Insecure world writable dir /Applications/Cocos/tools/ant/bin in PATH, mode 040777
*** CURRENT SOURCES ***
https://rubygems.org/
首先移除当前镜像
gem sources --remove https://rubygems.org/
~$gem sources --remove https://rubygems.org/
/System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/lib/ruby/2.3.0/universal-darwin18/rbconfig.rb:215: warning: Insecure world writable dir /Applications/Cocos/tools/ant/bin in PATH, mode 040777
https://rubygems.org/ removed from sources
然后添加国内最新Ruby镜像地址
gem sources -a https://gems.ruby-china.com/
~$gem sources -a https://gems.ruby-china.com/
/System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/lib/ruby/2.3.0/universal-darwin18/rbconfig.rb:215: warning: Insecure world writable dir /Applications/Cocos/tools/ant/bin in PATH, mode 040777
https://gems.ruby-china.com/ added to sources
这时候再查看镜像地址就是这样的了
192:~ ***$ gem sources -l
*** CURRENT SOURCES ***
https://gems.ruby-china.com/
192:~ ***$
安装CocoaPods
Ruby环境安装好以后，接下来就是安装CocoaPods，终端输入：
sudo gem install cocoapods
Mac OS X 10.11前
sudo gem install cocoapods
Mac OS X 10.11后
sudo gem install -n /usr/local/bin cocoapods
如果终端出现下面的提示，表示安装成功。
~$sudo gem install cocoapods
Password:
......
Done installing documentation for concurrent-ruby, i18n, thread_safe, tzinfo, activesupport, nap, fuzzy_match, cocoapods-core, claide, cocoapods-deintegrate, cocoapods-downloader, cocoapods-plugins, cocoapods-search, cocoapods-stats, netrc, cocoapods-trunk, cocoapods-try, molinillo, atomos, CFPropertyList, colored2, nanaimo, xcodeproj, escape, fourflusher, gh_inspector, ruby-macho, cocoapods after 33 seconds
28 gems installed
注意如果出现错误
# [ERROR: While executing gem ... (Errno::EPERM) Operation not permitted - /usr/bin/pod](https://www.cnblogs.com/yujinzhong/p/6198015.html)
就执行以下命令
sudo gem install -n /usr/local/bin cocoapods
到这里还剩最后一步，还需执行命令：
pod setup
这一步可能需要耐心等待，需要下载上百M的文件。
~$pod setup
/System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/lib/ruby/2.3.0/universal-darwin18/rbconfig.rb:215: warning: Insecure world writable dir /Applications/Cocos/tools/ant/bin in PATH, mode 040777
Setting up CocoaPods master repo
$ /usr/bin/git clone https://github.com/CocoaPods/Specs.git master --progress
Cloning into 'master'...
remote: Enumerating objects: 179, done.
remote: Counting objects: 100% (179/179), done.
remote: Compressing objects: 100% (135/135), done.
remote: Total 2819986 (delta 66), reused 64 (delta 42), pack-reused 2819807
Receiving objects: 100% (2819986/2819986), 614.27 MiB | 834.00 KiB/s, done.
Resolving deltas: 100% (1676501/1676501), done.
Checking out files: 100% (304760/304760), done.
Setup completed
至此，CocoaPods安装完成！
查看pod版本 pod --version
$ pod --version
1.9.0
注意：我遇到的问题：
1.setup时 不执行，不卡顿的问题
2.setup执行，未出现Setting up CocoaPods master repo 立马出现Setup completed(Mac osx新系统是这种情况，这时需要手动安装本地库，直接看下面解决方法)
执行pod search AFNetworking会报如下错误
***@192 ~ % pod search AFNetworking
Setup completed
[!] Unable to find a pod with name, author, summary, or description matching `AFNetworking`
解决方法
（推荐）方法一：
直接去Git上拉，终端输入
$git clone https://git.coding.net/CocoaPods/Specs.git ~/.cocoapods/repos/master
也可以执行下面命令
git clone https://github.com/CocoaPods/Specs.git ~/.cocoapods/repos/trunk
或者使用下面的，国内镜像，速度快些
git clone https://mirrors.tuna.tsinghua.edu.cn/git/CocoaPods/Specs.git ~/.cocoapods/repos/trunk
使用后面两个命令的目录结构如下图
image.png
方法二：
1.要是以上命令比较慢或者执行不成功，就到 https://github.com/CocoaPods/Specs.git 把文件clone下来，默认文件夹名字为Specs-master
2.前往文件夹 ~/.cocoapods/repos
3.Specs-master文件夹名字修改为master，并替换~/.cocoapods/repos 下的master文件夹，要是没有master文件夹，直接放进去就好
但是这种方法会出现部分库可以下载，部分不行。还是建议使用方法一
验证cocopods是否安装成功
在使用之前，我们先验证下CocoaPods是否安装成功，搜索一个第三方库。终端输入：pod search AFNetworking
~$pod search AFNetworking
正常情况下，这是会提示Creating search index for spec repo 'master'...等待一会就会出现搜索结果了（也可能需要等待很长时间，大约二十几分钟，不要着急，耐心等待就行）。
image
出现上图这个就说明成功了。直接按“Q”键就可以退出。
更新pods 本地库
pod install --repo-update
执行结果
ios001@bogon appdemo % pod install --repo-update
Updating local specs repositories
/Users/ios001/.rvm/rubies/ruby-2.7.0/lib/ruby/gems/2.7.0/gems/cocoapods-core-1.9.3/lib/cocoapods-core/cdn_source.rb:342: warning: URI.escape is obsolete
$ /usr/bin/git -C /Users/ios001/.cocoapods/repos/cocoapods fetch origin
--progress
remote: Enumerating objects: 52103, done.
remote: Counting objects: 100% (52103/52103), done.
remote: Compressing objects: 100% (432/432), done.
remote: Total 215474 (delta 51792), reused 51882 (delta 51652), pack-reused 163371
Receiving objects: 100% (215474/215474), 25.43 MiB | 11.00 KiB/s, done.
Resolving deltas: 100% (150687/150687), completed with 8903 local objects.
From https://github.com/CocoaPods/Specs
77f9552132dd..bf078067b87c master -> origin/master
* [new branch] igor/fix-workflow -> origin/igor/fix-workflow
$ /usr/bin/git -C /Users/ios001/.cocoapods/repos/cocoapods rev-parse
--abbrev-ref HEAD
master
$ /usr/bin/git -C /Users/ios001/.cocoapods/repos/cocoapods reset --hard
origin/master
Updating files: 100% (453663/453663), done.
HEAD is now at bf078067b87c [Add] SudoUser 7.13.0
Analyzing dependencies
Downloading dependencies
Generating Pods project
Integrating client project
/Users/ios001/.rvm/rubies/ruby-2.7.0/lib/ruby/gems/2.7.0/gems/cocoapods-core-1.9.3/lib/cocoapods-core/cdn_source.rb:342: warning: URI.escape is obsolete
Pod installation complete! There are 42 dependencies from the Podfile and 43 total pods installed.
卸载CocoaPods
查看是否安装：pod list
如果已安装：
*** LOCAL GEMS ***
activesupport (4.2.9)
bigdecimal (default: 1.2.0)
CFPropertyList (2.3.5, 2.2.8)
claide (1.0.2)
cocoa (0.1.6)
cocoapods (1.3.1)
cocoapods-core (1.4.0.beta.1, 1.3.1)
cocoapods-deintegrate (1.0.1)
cocoapods-downloader (1.1.3)
cocoapods-plugins (1.0.0)
cocoapods-search (1.0.0)
cocoapods-stats (1.0.0)
cocoapods-trunk (1.2.0)
cocoapods-try (1.1.0)
colored2 (3.1.2)
escape (0.0.4)
ffi (1.9.18)
nanaimo (0.2.3)
...
如果未安装：
zsh: command not found: pod
删除
1.移除pod组件
这条指令会告诉你Cocoapods组件装在哪里 :
$ which pod
你可以手动移除这个组件 :
$ sudo rm -rf
2.移除 RubyGems 中的 Cocoapods程序包
RubyGems（简称 gems）是一个用于对 Ruby组件进行打包的 Ruby 打包系统。 它提供一个分发 Ruby 程序和库的标准格式，还提供一个管理程序包安装的工具。
查看gems中本地程序包:
$ gem list
输出
*** LOCAL GEMS ***
activesupport (4.2.11.1)
algoliasearch (1.27.1)
atomos (0.1.3)
bigdecimal (default: 1.4.1)
bundler (default: 1.17.2)
CFPropertyList (2.3.6)
claide (1.0.3)
cmath (default: 1.0.0)
cocoa (0.1.6)
cocoapods (1.9.0)
cocoapods-core (1.9.0)
cocoapods-deintegrate (1.0.4)
cocoapods-downloader (1.3.0)
cocoapods-plugins (1.0.0)
cocoapods-search (1.0.0)
cocoapods-stats (1.1.0)
cocoapods-trunk (1.4.1)
cocoapods-try (1.1.0)
colored2 (3.1.2)
concurrent-ruby (1.1.6)
csv (default: 3.0.9)
date (default: 2.0.0)
dbm (default: 1.0.0)
did_you_mean (1.3.0)
e2mmap (default: 0.1.0)
escape (0.0.4)
etc (default: 1.0.1)
ethon (0.12.0)
fcntl (default: 1.0.0)
ffi (1.12.2)
fiddle (default: 1.0.0)
fileutils (default: 1.1.0)
forwardable (default: 1.2.0)
fourflusher (2.3.1)
fuzzy_match (2.0.4)
gh_inspector (1.1.3)
httpclient (2.8.3)
i18n (0.9.5)
io-console (default: 0.4.7)
ipaddr (default: 1.2.2)
irb (default: 1.0.0)
json (default: 2.1.0)
libxml-ruby (3.1.0)
logger (default: 1.3.0)
matrix (default: 0.1.0)
mini_portile2 (2.4.0)
minitest (5.11.3)
molinillo (0.6.6)
mutex_m (default: 0.1.0)
nanaimo (0.2.6)
nap (1.1.0)
net-telnet (0.2.0)
netrc (0.11.0)
nokogiri (1.10.1)
openssl (default: 2.1.2)
ostruct (default: 0.1.0)
pods (0.0.1)
power_assert (1.1.3)
prime (default: 0.1.0)
psych (default: 3.1.0)
rake (12.3.2)
rdoc (default: 6.1.0)
rexml (default: 3.1.9)
rss (default: 0.2.7)
ruby-macho (1.4.0)
scanf (default: 1.0.0)
sdbm (default: 1.0.0)
shell (default: 0.7)
sqlite3 (1.3.13)
stringio (default: 0.0.2)
strscan (default: 1.0.0)
sync (default: 0.5.0)
test-unit (3.2.9)
thread_safe (0.3.6)
thwait (default: 0.1.0)
tracer (default: 0.1.0)
typhoeus (1.3.1)
tzinfo (1.2.6)
webrick (default: 1.4.2)
xcodeproj (1.15.0)
xmlrpc (0.3.0)
zlib (default: 1.0.0)
发现有cocopods相关包
cocoapods (1.9.0)
cocoapods-core (1.9.0)
cocoapods-deintegrate (1.0.4)
cocoapods-downloader (1.3.0)
cocoapods-plugins (1.0.0)
cocoapods-search (1.0.0)
cocoapods-stats (1.1.0)
cocoapods-trunk (1.4.1)
cocoapods-try (1.1.0)
移除cocopods程序包
$ sudo gem uninstall cocoapods
输出
Remove executables:
pod, sandbox-pod
in addition to the gem? [Yn] y
Removing pod
Removing sandbox-pod
Successfully uninstalled cocoapods-1.9.0
依次移除pods包
$ sudo gem uninstall cocoapods-core
Successfully uninstalled cocoapods-core-1.9.0
$ sudo gem uninstall cocoapods-deintegrate
Successfully uninstalled cocoapods-deintegrate-1.0.4
$ sudo gem uninstall cocoapods-downloader
Successfully uninstalled cocoapods-downloader-1.3.0
$ sudo gem uninstall cocoapods-plugins
Successfully uninstalled cocoapods-plugins-1.0.0
$ sudo gem uninstall cocoapods-search
Successfully uninstalled cocoapods-search-1.0.0
$ sudo gem uninstall cocoapods-stats
Successfully uninstalled cocoapods-stats-1.1.0
$ sudo gem uninstall cocoapods-trunk
Successfully uninstalled cocoapods-trunk-1.4.1
$ sudo gem uninstall cocoapods-try
Successfully uninstalled cocoapods-try-1.1.0
全部移除完，再次执行gem list 输出结果未发现cocopods相关包
~/资源库/Caches/CocoaPods
卸载后有一些缓存并不会清理，可以进入~/资源库/Caches/CocoaPods目录手动清理。