How to set the Legacy Swift Versions for each Pod in Podfile

Tal Zion picture Tal Zion · Nov 9, 2016 · Viewed 26.2k times · Source

I am currently setting the legacy in the Podfile to SWIFT_VERSION = 2.3, but some of the libraries I am using are Swift 3.0, which means that I need to manually set the legacy for all Swift 3.0 pods legacy to No on each pod install. How do I configure each pod version in the Podfile installer?

This is what I am setting:

post_install do |installer|
 installer.pods_project.targets.each do |target|
     target.build_configurations.each do |config|
         config.build_settings['SWIFT_VERSION'] = '2.3'
     end
 end
end

If I set config.build_settings['SWIFT_VERSION'] = '3.0', than we have issues with Swift 2.3 pods. The best solution is if we set each pod legacy version separately to avoid having to manually set it.

Answer

Justin Miller picture Justin Miller · Oct 11, 2017

I found this while searching how to set the SWIFT_VERSION to 3.2 for Xcode 9.

Using the AirMapSDK which itself and multiple dependencies need 3.2 instead of 4.0 Here is an example of how to set pod specific SWIFT_VERSION for others that may come across this question.

post_install do |installer|
  installer.pods_project.targets.each do |target|
    if ['AirMapSDK', 'PhoneNumberKit', 'Lock', 'RxSwift', 'RxSwiftExt', 'RxCocoa', 'RxDataSources', 'ProtocolBuffers-Swift'].include? target.name
      target.build_configurations.each do |config|
        config.build_settings['SWIFT_VERSION'] = '3.2'
      end
    end
  end
end

You can change the if array to specify whatever pod you need to set the version too.