As with any of the other fastlane utilities, gym works even better in concert with other utilities as part of a lane, and we will show you how to integrate gym into our Fastfile later on. For now, let's start off with the simplest command:
fastlane gym
When prompted for the scheme, select Client.
You will get a whole bunch of Terminal text that resembles the following:
... [17:45:02]: $ xcodebuild -list -project ./Client.xcodeproj ... ... [17:45:13]: $ set -o pipefail && xcodebuild -scheme Fennec -project ./Client.xcodeproj -destination 'generic/platform=iOS' -archivePath /Users/doronkatz/Library/Developer/Xcode/Archives/2017-07-29/Client\ 2017-07-29\ 17.45.13.xcarchive archive | tee /Users/doronkatz/Library/Logs/gym/Client-Fennec.log ...