1、安装fastlane
1）安装命令：

sudo gem install -n /usr/local/bin fastlane

2）查看版本：

fastlane --version

如果安装成功，会有如下结果输出。

fastlane installation at path:
/Library/Ruby/Gems/2.6.0/gems/fastlane-2.212.1/bin/fastlane
-----------------------------
[✔] 🚀 
fastlane 2.212.1

2、初始化fastlane
1）定位到项目根目录，执行初始化

cd dir
fastlane init

2）初始化期间，会有一些选择，根据您的需求键入即可。

[16:35:11]: What would you like to use fastlane for?
1. 📸  Automate screenshots
2. 👩✈️  Automate beta distribution to TestFlight
3. 🚀  Automate App Store distribution
4. 🛠  Manual setup - manually setup your project to automate your tasks
?  
Ambiguous choice.  Please choose one of [1, 2, 3, 4, 📸  Automate
screenshots, 👩✈️  Automate beta distribution to TestFlight, 🚀  Automate
App Store distribution, 🛠  Manual setup - manually setup your project to
automate your tasks].
?  1

[17:11:53]: Which is your UI Testing scheme? If you can't find it in this list, make sure it's marked as `Shared` in the Xcode scheme list
1. GlobalChallenge
?  1
[17:11:54]: ------------------------------------
[17:11:54]: --- Automatically upload to iTC? ---
[17:11:54]: ------------------------------------
[17:11:54]: Would you like fastlane to automatically upload all generated screenshots to App Store Connect
[17:11:54]: after generating them?
[17:11:54]: If you enable this feature you'll need to provide your App Store Connect credentials so fastlane can upload the screenshots to App Store Connect
[17:11:54]: Enable automatic upload of localized screenshots to App Store
Connect? (y/n)
n
[17:11:59]: --------------------------------------------------------
[17:11:59]: --- ✅  Successfully generated fastlane configuration ---
[17:11:59]: --------------------------------------------------------
[17:11:59]: Generated Fastfile at path `./fastlane/Fastfile`
[17:11:59]: Generated Appfile at path `./fastlane/Appfile`
[17:11:59]: Gemfile and Gemfile.lock at path `Gemfile`
[17:11:59]: Please check the newly generated configuration files into git along with your project
[17:11:59]: This way everyone in your team can benefit from your fastlane setup
[17:11:59]: Continue by pressing Enter ⏎

根目录会产生一个fastlane文件夹，初始化成功后，文件夹里多了Appfile和Fastfile等文件。
3、对fastlane里文件进行修改
1）编辑Appfile文件。

app_identifier("com.xxxx.xxxx") # The bundle identifier of your app
# apple_id("xxxx@xxxx.com") # Your Apple Developer Portal username


# For more information about the Appfile, see:
#     https://docs.fastlane.tools/advanced/#appfile

2）编辑Fastfile文件。

default_platform(:ios)

platform :ios do
  desc "Description of what the lane does"

  #fir为任务名称
  lane :fir do 
    # add actions here: https://docs.fastlane.tools/actions

    build_app( # 构建app，archive操作
        clean: "true",

    # 指定工程文件
        workspace: "xxxx.xcworkspace",

    #打包模式，Release或者Debug
        configuration: "Release", 

    #指定打包所使用的输出方式，目前支持app-store, package, ad-hoc, enterprise, development
        export_method: "ad-hoc",

    export_options: {
        provisioningProfiles: {

            #指定打包所使用的证书："项目bundleid" => "Provisioning Profile文件名"
                "com.xxxx.xxxx" => "GC_Ad_Hoc03"
            }
},
    #ipa包路径
        output_directory: "~/Desktop/autoPackaging"
    )
  end

end

4、打包
1）执行打包命令。

cd dir
fastlane fir

打包成功如下所示。

[09:53:59]: Successfully exported and compressed dSYM file
[09:53:59]: Successfully exported and signed the ipa file:
[09:53:59]: /Users/iss730001004790/Desktop/autoPackaging/xxxx.ipa

+------+------------------+-------------+
|           fastlane summary            |
+------+------------------+-------------+
| Step | Action           | Time (in s) |
+------+------------------+-------------+
| 1    | default_platform | 0           |
| 2    | build_app        | 104         |
+------+------------------+-------------+

[09:53:59]: fastlane.tools finished successfully 🎉

2）在桌面找到autoPackaging文件夹，打开可以看到生成的xxxx.app.dSYM.zip和xxxx.ipa文件。