IOS技术分享| iOS快速生成开发文档（二）

对于开发人员而言，文档的作用不言而喻。文档不仅可以提高软件开发效率，还能便于以后的软件开发、使用和维护。上一篇主要讲述 Obje ct i v e-C 生成文档，本篇主要讲述 Swi ft 快速生成开发文档工具 Jazzy。

Jazzy 是 Swi ft 和 Obje ct i v e-C 的文档生成工具。Jazzy 并不会解析源文件，而是使用 AST 来表示代码，并且提供准确的结果。Jazzy是一个命令行实用程序, 可以从已编译的 Swi ft 模块中生成文档，输出风格和官方文档匹配。

jazzy

sudo gem install jazzy -n /usr/local/bin --verbose

jazzy

 cd /Users/yusheng/Desktop/Jazzy

jazzy --min-acl internal
# 选择 Swift 语言版本
jazzy --swift-version 4.1.2 --min-acl internal

1.安装问题

ERROR: Failed to build gem native extension.

    current directory: /Library/Ruby/Gems/2.6.0/gems/redcarpet-3.5.0/ext/redcarpet

/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/bin/ruby -I /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0 -r ./siteconf20190906-93824-4j4s2f.rb extconf.rb

mkmf.rb can't find header files for ruby at /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/include/ruby.h

You might have to install separate package for the ruby development

environment, ruby-dev or ruby-devel for example.

extconf failed, exit code 1

Gem files will remain installed in /Library/Ruby/Gems/2.6.0/gems/redcarpet-3.5.0 for inspection.

Results logged to /Library/Ruby/Gems/2.6.0/extensions/universal-darwin-19/2.6.0/redcarpet-3.5.0/gem_make.out

解决：

# 这是由于本地安装的ruby版本低导致的问题，更新ruby版本即可
brew upgrade ruby

Can't find header files / clang

xcode-select --install

dyld: Symbol not found: _$s11SubSequenceSlTl

xcodebuild: error: The directory does not contain an Xcode project, workspace or package.

...

Please confirm that `xcodebuild` is building a Swift module.