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Continuous Integration at SoundCloud iOSDevUK september 2014 ! Vincent Garrigues @garriguv

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What is CI?

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“Continuous integration (CI) is the practice, in software engineering, of merging all developer working copies with a shared mainline several times a day.” http://en.wikipedia.org/wiki/Continuous_integration

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• trunk based development • lots of testing • CI pipeline

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Why CI?

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• move fast • keep codebase healthy • ship reliable apps

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• move fast • keep codebase healthy • ship reliable apps

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• started from scratch • months in development • millions of users

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iOS Crash Complaints (avg per Week) 0 35 70 105 140 April May June July August SoundCloud community team

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How to get started?

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Start simple and iterate

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• run unit test suite • α and β versions • sign .app builds

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Rake

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require 'rake' ! desc 'say Hello World!' task :hello do puts 'Hello World!' end

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require 'rake' ! desc 'say Hello World!' task :hello do puts 'Hello World!' end

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require 'rake' ! desc 'say Hello World!' task :hello do puts 'Hello World!' end

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require 'rake' ! desc 'say Hello World!' task :hello do puts 'Hello World!' end

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Running the unit tests

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use xcodebuild or xctool

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xcodebuild -workspace ci.xcworkspace -scheme ci -configuration Debug -sdk iphonesimulator7.1 -destination "platform=iOS Simulator,name=iPhone Retina (4-inch)" test

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xcodebuild -workspace ci.xcworkspace -scheme ci -configuration Debug -sdk iphonesimulator7.1 -destination "platform=iOS Simulator,name=iPhone Retina (4-inch)" test

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xcodebuild -workspace ci.xcworkspace -scheme ci -configuration Debug -sdk iphonesimulator7.1 -destination "platform=iOS Simulator,name=iPhone Retina (4-inch)" test

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xcodebuild -workspace ci.xcworkspace -scheme ci -configuration Debug -sdk iphonesimulator7.1 -destination "platform=iOS Simulator,name=iPhone Retina (4-inch)" test

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xcodebuild -workspace ci.xcworkspace -scheme ci -configuration Debug -sdk iphonesimulator7.1 -destination "platform=iOS Simulator,name=iPhone Retina (4-inch)" test

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xcodebuild -workspace ci.xcworkspace -scheme ci -configuration Debug -sdk iphonesimulator7.1 -destination "platform=iOS Simulator,name=iPhone Retina (4-inch)" clean

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xcodebuild -workspace ci.xcworkspace -scheme ci -configuration Debug -sdk iphonesimulator7.1 -destination "platform=iOS Simulator,name=iPhone Retina (4-inch)" build

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rake tasks • rake clean • rake build • rake test

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α and β versions

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User-defined build settings

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Override user-defined build settings when running xcodebuild

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xcodebuild -workspace ci.xcworkspace -scheme ci -configuration Debug -sdk iphonesimulator7.1 -destination "platform=iOS Simulator,name=iPhone Retina (4-inch)” build

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xcodebuild (…) VG_BUNDLE_ID=com.company.app-alpha build

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xcodebuild (…) VG_BUNDLE_ID=com.company.app-alpha VG_DISPLAY_NAME=α build

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xcodebuild (…) VG_BUNDLE_ID=com.company.app-alpha VG_DISPLAY_NAME=α VG_CODE_SIGNING="'iPhone Distribution: Vincent Garrigues'" build

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Where can we store those settings?

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We use a YAML file

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defaults: &DEFAULTS app: &APP_DEFAULTS workspace: ci.xcworkspace scheme: ci configuration: Release display_name: ci-test bundle_identifier: com.company.ci-test codesign: &CODESIGN_DEFAULTS signing_identity: '"iPhone Distribution: Vincent Garrigues (X73EL3QFZB)"' provisioning_profile: provisioning/app_store.mobileprovision

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defaults: &DEFAULTS app: &APP_DEFAULTS workspace: ci.xcworkspace scheme: ci configuration: Release display_name: ci-test bundle_identifier: com.company.ci-test codesign: &CODESIGN_DEFAULTS signing_identity: '"iPhone Distribution: Vincent Garrigues (X73EL3QFZB)"' provisioning_profile: provisioning/app_store.mobileprovision

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defaults: &DEFAULTS app: &APP_DEFAULTS workspace: ci.xcworkspace scheme: ci configuration: Release display_name: ci-test bundle_identifier: com.company.ci-test codesign: &CODESIGN_DEFAULTS signing_identity: '"iPhone Distribution: Vincent Garrigues (X73EL3QFZB)"' provisioning_profile: provisioning/app_store.mobileprovision

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defaults: &DEFAULTS app: &APP_DEFAULTS workspace: ci.xcworkspace scheme: ci configuration: Release display_name: ci-test bundle_identifier: com.company.ci-test codesign: &CODESIGN_DEFAULTS signing_identity: '"iPhone Distribution: Vincent Garrigues (X73EL3QFZB)"' provisioning_profile: provisioning/app_store.mobileprovision

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defaults: &DEFAULTS app: &APP_DEFAULTS workspace: ci.xcworkspace scheme: ci configuration: Release display_name: ci-test bundle_identifier: com.company.ci-test codesign: &CODESIGN_DEFAULTS signing_identity: '"iPhone Distribution: Vincent Garrigues (X73EL3QFZB)"' provisioning_profile: provisioning/app_store.mobileprovision

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defaults: &DEFAULTS app: &APP_DEFAULTS workspace: ci.xcworkspace scheme: ci configuration: Release display_name: ci-test bundle_identifier: com.company.ci-test codesign: &CODESIGN_DEFAULTS signing_identity: '"iPhone Distribution: Vincent Garrigues (X73EL3QFZB)"' provisioning_profile: provisioning/app_store.mobileprovision

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defaults: (..) ! alpha: <<: *DEFAULTS app: <<: *APP_DEFAULTS display_name: α bundle_identifier: com.company.ci-test-alpha codesign: <<: *CODESIGN_DEFAULTS provisioning_profile: provisioning/alpha.mobileprovision

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defaults: (..) ! alpha: <<: *DEFAULTS app: <<: *APP_DEFAULTS display_name: α bundle_identifier: com.company.ci-test-alpha codesign: <<: *CODESIGN_DEFAULTS provisioning_profile: provisioning/alpha.mobileprovision

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defaults: (..) ! alpha: <<: *DEFAULTS app: <<: *APP_DEFAULTS display_name: α bundle_identifier: com.company.ci-test-alpha codesign: <<: *CODESIGN_DEFAULTS provisioning_profile: provisioning/alpha.mobileprovision

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rake build BUILD_ENV=alpha rake build BUILD_ENV=beta rake build BUILD_ENV=adhoc rake build BUILD_ENV=release

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rake build BUILD_ENV=alpha rake build BUILD_ENV=beta rake build BUILD_ENV=adhoc rake build BUILD_ENV=release

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rake build BUILD_ENV=alpha rake build BUILD_ENV=beta rake build BUILD_ENV=adhoc rake build BUILD_ENV=appstore

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rake build creates a .app

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We need a .ipa

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xcrun

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xcrun -v -sdk iphoneos PackageApplication ci-test-alpha.app -o ci-test-alpha.ipa --sign "iPhone Distribution: Vincent Garrigues" --embed provisioning/alpha.mobileprovision

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xcrun -v -sdk iphoneos PackageApplication ci-test-alpha.app -o ci-test-alpha.ipa --sign "iPhone Distribution: Vincent Garrigues" --embed provisioning/alpha.mobileprovision

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xcrun -v -sdk iphoneos PackageApplication ci-test-alpha.app -o ci-test-alpha.ipa --sign "iPhone Distribution: Vincent Garrigues" --embed provisioning/alpha.mobileprovision

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xcrun -v -sdk iphoneos PackageApplication ci-test-alpha.app -o ci-test-alpha.ipa --sign "iPhone Distribution: Vincent Garrigues" --embed provisioning/alpha.mobileprovision

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xcrun -v -sdk iphoneos PackageApplication ci-test-alpha.app -o ci-test-alpha.ipa --sign "iPhone Distribution: Vincent Garrigues" --embed provisioning/alpha.mobileprovision

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xcrun -v -sdk iphoneos PackageApplication ci-test-alpha.app -o ci-test-alpha.ipa --sign "iPhone Distribution: Vincent Garrigues" --embed provisioning/alpha.mobileprovision

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xcrun -v -sdk iphoneos PackageApplication ci-test-alpha.app -o ci-test-alpha.ipa --sign "iPhone Distribution: Vincent Garrigues" --embed provisioning/alpha.mobileprovision

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xcrun -v -sdk iphoneos PackageApplication ci-test-alpha.app -o ci-test-alpha.ipa --sign "iPhone Distribution: Vincent Garrigues" --embed provisioning/alpha.mobileprovision

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rake sign

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• rake clean • rake test • rake build • rake sign

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How can we use those rake tasks?

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• rake build sign BUILD_ENV=alpha • rake build sign BUILD_ENV=beta • rake build sign BUILD_ENV=adhoc

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• rake build sign BUILD_ENV=alpha • rake build sign BUILD_ENV=beta • rake build sign BUILD_ENV=adhoc

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• rake build sign BUILD_ENV=alpha • rake build sign BUILD_ENV=beta • rake build sign BUILD_ENV=adhoc

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• rake build sign BUILD_ENV=alpha • rake build sign BUILD_ENV=beta • rake build sign BUILD_ENV=adhoc • rake build sign BUILD_ENV=appstore

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Ad-Hoc and AppStore builds have the same bundle id

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rake build BUILD_ENV=appstore ci-test-appstore.app ci-test-appstore.dSYM ci-test-appstore.dSYM.zip

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rake build BUILD_ENV=appstore rake ipa BUILD_ENV=appstore ci-test-appstore.app ci-test-appstore.dSYM ci-test-appstore.dSYM.zip ci-test-appstore.ipa

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rake build BUILD_ENV=appstore rake ipa BUILD_ENV=appstore rake ipa BUILD_ENV=adhoc ci-test-appstore.app ci-test-appstore.dSYM ci-test-appstore.dSYM.zip ci-test-appstore.ipa ci-test-adhoc.ipa

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rake build BUILD_ENV=appstore rake ipa BUILD_ENV=appstore rake ipa BUILD_ENV=adhoc ci-test-appstore.app ci-test-appstore.dSYM ci-test-appstore.dSYM.zip ci-test-appstore.ipa ci-test-adhoc.ipa

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ci-test-appstore.app ci-test-appstore.dSYM ci-test-appstore.dSYM.zip ci-test-appstore.ipa ci-test-adhoc.ipa rake build BUILD_ENV=appstore rake ipa BUILD_ENV=appstore rake ipa BUILD_ENV=adhoc

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The same binary, signed twice

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Sample project ! github.com/garriguv/ci-test

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• linter (Xcode project, data model, acceptance tests, ruby, ObjC) • static analysis • unit tests (ruby and ObjC) • acceptance tests • custom app icon • deploy to HockeyApp • …

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Thank you! http://github.com/garriguv/ci-talk ! ! Vincent Garrigues @garriguv