解决 CocoaPods 命令 pod install 装置 github.com 上的包十分迟缓或者失败

CocoaPods 执行 pod install 会装置 github.com 上的包，但 github.com 很不稳固。
一个解决方案是，应用脚本将 github.com 的资源转换为其余域的资源。

CocoaPods v1.7.2

CocoaPods 从 1.7.2 版本开始应用 https://cdn.cocoapods.org/ 代替原有的 https://github.com/CocoaPods/Specs.git，
这样能够按需下载须要的包定义，而不必一次性下载整个 Specs 库（整个库是 3GB 左右），参考 CocoaPods 1.7.2 — Master Repo CDN is Finalized!。

source 'https://github.com/artsy/Specs.git'
- source 'https://github.com/CocoaPods/Specs.git'
+ source 'https://cdn.cocoapods.org/'

解决方案

脚本是应用 python 写的，很简略，放在 https://github.com/senntyou/CocoaPods-Specs-Modify，如要应用，须要先克隆到本地。

git clone https://github.com/senntyou/CocoaPods-Specs-Modify.git

cd CocoaPods-Specs-Modify

python modify.py

modify.py 脚本中，默认 specsDir 取 ~/.cocoapods/repos/trunk/Specs/，targetSite 取 github.com.cnpmjs.org/，能够依据须要更改，再运行脚本

# Specs 目录
specsDir = os.path.expanduser('~') + '/.cocoapods/repos/trunk/Specs/'

# github 域名
githubSite = 'github.com/'

# 替换域名
targetSite = 'github.com.cnpmjs.org/'

示例

比方，原来的包定义是

{
  "name": "MJRefresh",
  "version": "3.6.1",
  "summary": "An easy way to use pull-to-refresh",
  "homepage": "https://github.com/CoderMJLee/MJRefresh",
  "license": "MIT",
  "authors": {"MJ Lee": "richermj123go@vip.qq.com"},
  "platforms": {"ios": "9.0"},
  "source": {
    "git": "https://github.com/CoderMJLee/MJRefresh.git",
    "tag": "3.6.1"
  },
  "source_files": "MJRefresh/**/*.{h,m}",
  "resources": "MJRefresh/MJRefresh.bundle",
  "requires_arc": true
}

更改后的包变成

{
  "name": "MJRefresh",
  "version": "3.6.1",
  "summary": "An easy way to use pull-to-refresh",
  "homepage": "https://github.com.cnpmjs.org/CoderMJLee/MJRefresh",
  "license": "MIT",
  "authors": {"MJ Lee": "richermj123go@vip.qq.com"},
  "platforms": {"ios": "9.0"},
  "source": {
    "git": "https://github.com.cnpmjs.org/CoderMJLee/MJRefresh.git",
    "tag": "3.6.1"
  },
  "source_files": "MJRefresh/**/*.{h,m}",
  "resources": "MJRefresh/MJRefresh.bundle",
  "requires_arc": true
}

github.com 变成 github.com.cnpmjs.org

后续

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作者：深予之 (@senntyou)

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