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CocoaPods 私有库的创建流程

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可以使用 Github 创建一个私有的 Specs 库，如 https://github.com/qiweipeng/Specs.git，其 ssh 地址是 git@github.com:qiweipeng/Specs.git。

命令行 pod repo add qiweipeng git@github.com:qiweipeng/Specs.git 将这个源拉到本地，本地名称就是命名的 qiweipeng。

使用 pod repo 可以查看本地关联的仓库可以确定否添加成功。

指定一个文件夹，在其中 pod lib create Hello 创建一个命为 Hello 的 Pod 项目，之后一系列选项，配置好即可。

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qiweipeng@Weipengs-MacBook-Air Developer % pod lib create Hello
Cloning `https://github.com/CocoaPods/pod-template.git` into `Hello`.
Configuring Hello template.
security: SecKeychainSearchCopyNext: The specified item could not be found in the keychain.

------------------------------

To get you started we need to ask a few questions, this should only take a minute.

If this is your first time we recommend running through with the guide:
 - https://guides.cocoapods.org/making/using-pod-lib-create.html
 ( hold cmd and click links to open in a browser. )


What platform do you want to use?? [ iOS / macOS ]
 >
ios
What language do you want to use?? [ Swift / ObjC ]
 > ObjC

Would you like to include a demo application with your library? [ Yes / No ]
 >
yes
Which testing frameworks will you use? [ Specta / Kiwi / None ]
 > None

Would you like to do view based testing? [ Yes / No ]
 > No

What is your class prefix?
 > QWP
security: SecKeychainSearchCopyNext: The specified item could not be found in the keychain.
security: SecKeychainSearchCopyNext: The specified item could not be found in the keychain.
security: SecKeychainSearchCopyNext: The specified item could not be found in the keychain.
security: SecKeychainSearchCopyNext: The specified item could not be found in the keychain.
security: SecKeychainSearchCopyNext: The specified item could not be found in the keychain.
security: SecKeychainSearchCopyNext: The specified item could not be found in the keychain.

Running pod install on your new library.

Analyzing dependencies
Downloading dependencies
Installing Hello (0.1.0)
Generating Pods project
Integrating client project

[!] Please close any current Xcode sessions and use `Hello.xcworkspace` for this project from now on.
Pod installation complete! There is 1 dependency from the Podfile and 1 total pod installed.

 Ace! you're ready to go!
 We will start you off by opening your project in Xcode
  open 'Hello/Example/Hello.xcworkspace'

To learn more about the template see `https://github.com/CocoaPods/pod-template.git`.
To learn more about creating a new pod, see `https://guides.cocoapods.org/making/making-a-cocoapod`.

创建好的项目是一个 Git 仓库，里面的 Hello/Classes 文件夹用于放置代码，Hello/Assets 文件夹用于放置图片等素材（这些路径可以通过修改 Hello.podspec 文件进行修改）。外部的 Hello.podspec 是配置文件，另外还有 LICENSE 和 README 等都已经自动创建好。

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#
# Be sure to run `pod lib lint Hello.podspec' to ensure this is a
# valid spec before submitting.
#
# Any lines starting with a # are optional, but their use is encouraged
# To learn more about a Podspec see https://guides.cocoapods.org/syntax/podspec.html
#

Pod::Spec.new do |s|
  s.name             = 'Hello'
  s.version          = '0.1.0'
  s.summary          = 'A short description of Hello.'

# This description is used to generate tags and improve search results.
#   * Think: What does it do? Why did you write it? What is the focus?
#   * Try to keep it short, snappy and to the point.
#   * Write the description between the DESC delimiters below.
#   * Finally, don't worry about the indent, CocoaPods strips it!

  s.description      = <<-DESC
TODO: Add long description of the pod here.
                       DESC

  s.homepage         = 'https://github.com/Weipeng Qi/Hello'
  # s.screenshots     = 'www.example.com/screenshots_1', 'www.example.com/screenshots_2'
  s.license          = { :type => 'MIT', :file => 'LICENSE' }
  s.author           = { 'Weipeng Qi' => 'qiweipeng@hotmail.com' }
  s.source           = { :git => 'https://github.com/Weipeng Qi/Hello.git', :tag => s.version.to_s }
  # s.social_media_url = 'https://twitter.com/<TWITTER_USERNAME>'

  s.ios.deployment_target = '8.0'

  s.source_files = 'Hello/Classes/**/*'
  
  # s.resource_bundles = {
  #   'Hello' => ['Hello/Assets/*.png']
  # }

  # s.public_header_files = 'Pod/Classes/**/*.h'
  # s.frameworks = 'UIKit', 'MapKit'
  # s.dependency 'AFNetworking', '~> 2.3'
end

Hello.podspec 文件的具体配置可以参考官网。

具体的可以设置第三方依赖，可以设置系统 Framework 依赖，可以设置 Info.plist 文件，可以指定具体的图片资源、静态库文件，可以指定具体的平台和版本，也可以配置 compiler_flags 等。

如果是私有库，s.source 可以指定为 git@github.com:qiweipeng/Hello.git 这样的通过 ssh 访问的地址。

代码写好，配置好后，将这个 Git 项目上传到 Gtihub 进行托管，地址和 Hello.podspec 中的应一致。

之后需要验证 Hello.podspec 文件，使用 pod spec lint Hello.podspec 进行联网验证，或使用 pod lib lint Hello.podspec 进行本地验证，建议使用联网验证。

因为创建的 Specs 库在 Github 上是私有的，使用了 SSH；对于 Hello 库，因为也是私有的，在验证时会出现警告说无法访问 https://github.com/qiweipeng/Hello，于是验证和提交都加上 --allow-warnings

这里可选参数有：

  • --allow-warnings: 允许警告；
  • --sources=‘master,privateSpecs: 指定源，比如你的私有pod同时依赖了公有库和私有库，你必须指定源才行，因为默认只会去在公有源中查找对应的依赖；
  • --use-libraries: 如果使用了静态库，记得加上它；

确定验证通过，然后将 Hello.podspec 文件提交到之前创建的私有 Specs 库中，命令为 pod repo push qiweipeng Hello.podspec，如果 Hello 是私有库，为了通过，则命令为 pod repo push qiweipeng Hello.podspec --allow-warnings

成功后就可以正常使用了，不过我们需要在 Podfile 文件中指定源：

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source 'git@github.com:qiweipeng/Specs.git'
platform :ios, '9.0'

target 'Demo' do
  use_frameworks!

  pod 'Hello', '~> 0.1.0'
  
end

实际工作中也可以直接将已有项目转成 Pods，只需要加一个配置文件即可：

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$ pod spec create Peanut
$ edit Peanut.podspec
$ pod spec lint Peanut.podspec

另外，我们创建的 Pod 也可以不通过任何 Specs 管理而直接使用，我们在其它项目中直接在 Podfile 文件中通过相对路径找到需要的 Pod 的 .podspec 文件即可。如：

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platform :ios, '9.0'

target 'Demo' do
  use_frameworks!

  pod 'Hello', :path => '../Hello/'
  
end