Technical Note TN2339

Building from the Command Line with Xcode FAQ

This document provides answers to frequently asked questions about command line tools.

What is the Command Line Tools Package?

Downloading command-line tools is not available in Xcode for macOS 10.9. How can I install them on my machine?

How can I uninstall the command-line tools?

I have multiple versions of Xcode installed on my machine. What version of Xcode do the command-line tools currently use?

How do I select the default version of Xcode to use for my command-line tools?

How do I build my projects from the command line?

My app has multiple build configurations. How do I set a default build configuration for xcodebuild?

How do I run unit tests from the command line?

How do I implement the Build For Testing and Test Without Building features from the command line?

What keys can I pass to the exportOptionsPlist flag?

How do I archive and export my app for distribution?

Document Revision History

What is the Command Line Tools Package?

The Command Line Tools Package is a small self-contained package available for download separately from Xcode and that allows you to do command line development in macOS. It consists of the macOS SDK and command-line tools such as Clang, which are installed in the /Library/Developer/CommandLineTools directory.

Downloading command-line tools is not available in Xcode for macOS 10.9. How can I install them on my machine?

In macOS 10.9 and later, the Downloads pane of Xcode Preferences does not support downloading command-line tools. Use any of the following methods to install command-line tools on your system:

Install Xcode
If Xcode is installed on your machine, then there is no need to install them. Xcode comes bundled with all your command-line tools. macOS 10.9 and later includes shims or wrapper executables. These shims, installed in /usr/bin, can map any tool included in /usr/bin to the corresponding one inside Xcode. xcrun is one of such shims, which allows you to find or run any tool inside Xcode from the command line. Use it to invoke any tool within Xcode from the command line as shown in Listing 1.

Listing 1 Using xcrun to run dwarfdump in the Terminal application.
$ xcrun dwarfdump --uuid MySample.app/MySample
UUID: AD019F0E-1318-3F9F-92B6-9F95FBEBBE6F (armv7) MySample.app/MySample
UUID: BB59C973-06AC-388F-8EC1-FA3701C9E264 (arm64) MySample.app/MySample

Download the Command Line Tools package from the Developer website
The Command Line Tools package is available for download on the Download for Apple Developers page. Log in with your Apple ID, then search and download the Command Line Tools package appropriate for your machine such as macOS 10.12 as shown in Figure 1.

**Figure 1** Download page for the Command Line Tools package.

Install the Command Line Tools package via the Terminal application
You can install the Command Line Tools package by running the xcode-select --install command.
Note: macOS comes bundled with xcode-select, a command-line tool that is installed in /usr/bin. It allows you to manage the active developer directory for Xcode and other BSD development tools. See its man page for more information.

How can I uninstall the command-line tools?

Xcode includes all of the command-line tools. If it is installed on your system, remove it to uninstall the command-line tools.
If the /Library/Developer/CommandLineTools directory exists on your system, remove it to uninstall the command-line tools.

I have multiple versions of Xcode installed on my machine. What version of Xcode do the command-line tools currently use?

To find out what version of Xcode is being used by your tools, run the following command in Terminal:

$ xcode-select --print-path

Listing 2 Printing the version of Xcode currently used by the command-line tools.

$ xcode-select --print-path

/Applications/Xcode8.3.3/Xcode.app/Contents/Developer

How do I select the default version of Xcode to use for my command-line tools?

To select a default Xcode for your command-line tools, run the following command in Terminal:

$ sudo xcode-select -switch <path/to/>Xcode.app

where <path/to/> is the path to the Xcode.app package you wish to use for development.

Listing 3 Setting the default Xcode version.

$ sudo xcode-select -switch /Applications/Xcode8.3.3/Xcode.app

How do I build my projects from the command line?

xcodebuild is a command-line tool that allows you to perform build, query, analyze, test, and archive operations on your Xcode projects and workspaces from the command line. It operates on one or more targets contained in your project, or a scheme contained in your project or workspace. xcodebuild provides several options for performing these operations as seen its man page. xcodebuild saves the output of your commands in the locations defined in the Locations preferences pane of your Xcode application, by default.

See below for various xcodebuild usage. Be sure to navigate to the directory containing your project or workspace in Terminal before running any of the following commands.

To list all schemes in your workspace, run the following command in Terminal:

xcodebuild -list -workspace <your_workspace_name>.xcworkspace

where <your_workspace_name> is the name of your workspace.

Listing 4 Listing all schemes in the MyApplication workspace.

$ cd /Users/username/Desktop/MyApplication

$ xcodebuild -list -workspace MyApplication.xcworkspace

Information about workspace "MyApplication":

    Schemes:

        iOSApp

        tvOSApp

        macOSApp

        iOSWithWatchApp

        iOSWithWatchApp WatchKit App

To list all targets, build configurations, and schemes used in your project, run the following command in Terminal:

xcodebuild -list -project <your_project_name>.xcodeproj

where <your_project_name> is the name of your project.

Listing 5 Listing all information about MyProject, an Xcode project.

$ cd /Users/username/Desktop/MyProject

$ xcodebuild -list -project MyProject.xcodeproj

Information about project "MyProject":

    Targets:

iOS

        iOSTests

        iOSUITests

        watchOS App

        watchOS App Extension

        tvOS

        tvOSTests

        tvOSUITests

        macOS

        macOSTests

        macOSUITests

    Build Configurations:

        Debug

        Release

 If no build configuration is specified and -scheme is not passed then "Debug" is used.

    Schemes:

iOS

        watchOS App

        tvOS

        macOS

To build a scheme in your project, run the following command in Terminal:
xcodebuild -scheme <your_scheme_name> build
where <your_scheme_name> and build are respectively the name of your scheme to be built and the action to be performed on your scheme.

Listing 6 Building the tvOS scheme.
$ xcodebuild -scheme tvOS build
=== BUILD TARGET tvOS OF PROJECT MyProject WITH CONFIGURATION Debug ===
...
Note: xcodebuild supports various build actions such as build, analyze, and archive that can be performed on your target or scheme. However, build is performed by default when no action is specified as shown in Listing 7.

To build your target with a configuration file, run the following command in Terminal:

xcodebuild -target <your_target_name> -xcconfig <your_configuration_file>.xcconfig

where <your_target_name> and <your_configuration_file> are respectively the name of your target to be built and the name of your configuration file. See Xcode Help's Build configuration file reference for more information about xcconfig files.

Listing 7 Building the iOS target with a configuration file.

$ xcodebuild -target iOS -xcconfig configuration.xcconfig

Build settings from configuration file 'configuration.xcconfig':

   IPHONEOS_DEPLOYMENT_TARGET = 10

   SWIFT_TREAT_WARNINGS_AS_ERRORS = YES

=== BUILD TARGET watchOS Extension OF PROJECT MyProject WITH THE DEFAULT CONFIGURATION (Debug) ===

...

=== BUILD TARGET watchOS App OF PROJECT MyProject WITH THE DEFAULT CONFIGURATION (Debug) ===

...

=== BUILD TARGET iOS OF PROJECT MyProject WITH THE DEFAULT CONFIGURATION (Debug) ===

...

To change the output locations of your xcodebuild command, use the SYMROOT (Build Products Path) and DSTROOT (Installation Build Products Location) build settings that respectively specify a location for your debug products and .dSYM files and one for your released products. See Xcode Help's Build setting reference for more information about these build settings.

Listing 8 Setting up a location for iOS' debug app version.

$ xcodebuild -scheme iOS SYMROOT="/Users/username/Desktop/DebugLocation"

Build settings from command line:

    SYMROOT = "/Users/username/Desktop/DebugLocation"

=== BUILD TARGET watchOS Extension OF PROJECT MyProject WITH CONFIGURATION Debug ===

...

=== BUILD TARGET watchOS App OF PROJECT MyProject WITH CONFIGURATION Debug ===

...

=== BUILD TARGET iOS OF PROJECT MyProject WITH CONFIGURATION Debug ===

...

Listing 9 Setting up a location for iOS's released app version.

$ xcodebuild -scheme iOS  DSTROOT="/Users/username/Desktop/ReleaseLocation" archive

Build settings from command line:

    DSTROOT = /Users/username/Desktop/ReleaseLocation

=== BUILD TARGET watchOS Extension OF PROJECT MyProject WITH CONFIGURATION Release ===

...

=== BUILD TARGET watchOS App OF PROJECT MyProject WITH CONFIGURATION Release ===

...

=== BUILD TARGET iOS OF PROJECT MyProject WITH CONFIGURATION Release ===

...

My app has multiple build configurations. How do I set a default build configuration for xcodebuild?

In Xcode, the Configurations section of your project's Info pane provides a pop-up menu, which sets the default configuration to be used by xcodebuild when building a target. Use this pop-up menu to select a default build configuration for xcodebuild as seen in Figure 2.

**Figure 2** Debug set as the default build configuration for xcodebuild.

How do I run unit tests from the command line?

xcodebuild provides several options for running unit tests.

To build and run unit tests from the command line, execute the following command in Terminal:

xcodebuild test [-workspace <your_workspace_name>]

                [-project <your_project_name>]

                -scheme <your_scheme_name>

                -destination <destination-specifier>

                [-only-testing:<test-identifier>]

                [-skip-testing:<test-identifier>]

To build unit tests without running them from the command line, execute the following command in Terminal:

xcodebuild build-for-testing [-workspace <your_workspace_name>]

                             [-project <your_project_name>]

                             -scheme <your_scheme_name>

                             -destination <destination-specifier>

To run unit tests without building them from the command line, execute any of the following command in Terminal:

xcodebuild test-without-building [-workspace <your_workspace_name>]

                                 [-project <your_project_name>]

                                 -scheme <your_scheme_name>

                                 -destination <destination-specifier>

                                 [-only-testing:<test-identifier>]

                                 [-skip-testing:<test-identifier>]

xcodebuild test-without-building -xctestrun <your_xctestrun_name>.xctestrun

                                 -destination <destination-specifier>

                                 [-only-testing:<test-identifier>]

                                 [-skip-testing:<test-identifier>]

The test action requires specifying a scheme and a destination. See How do I implement the Build For Testing and Test Without Building features from the command line? for more information about build-for-testing and test-without-building actions.

The -workspace option allows you to specify the name of your workspace. Use this option when your scheme is contained in an Xcode workspace.

The -project option allows you to specify the name of your Xcode project. Use this option when your scheme is contained in an Xcode project. It is required when there are multiple Xcode projects in the same directory and optional, otherwise.

The -destination option allows you to specify a destination for your unit tests. It takes an argument <destination-specifier>, which describes the device, simulator, or Mac to use as a destination. It consists of a set of comma-separated key=value pairs, which are dependent upon the the device, simulator, or Mac being used.

The -only-testing and -skip-testing options, which are optional, allow you to run only a specific test and to skip a test, respectively. They take an argument <test-identifier>, which specifies the test to be executed or excluded. test-identifier's format is as follows:

TestTarget[/TestClass[/TestMethod]]

TestTarget, which is required, is the name of the test bundle. TestClass and TestMethod, which are both optional, respectively represent the name of the class and the name of the method to be tested.

For macOS apps, destinationspecifier supports the platform and arch keys as seen in Table 1. Both keys are required for running your unit tests in macOS.

**Table 1** Supported keys for macOS apps.
Key	Description	Value
platform	The supported destination for your unit tests.	macOS
arch	The architecture to use to run your unit tests.	i386 or x86_64

See Listing 10 for an example that tests a scheme in macOS and where destinationspecifier is set to 'platform=macOS,arch=x86_64'.

Listing 10 Tests the macOS scheme for 64-bit in macOS.

xcodebuild test -scheme macOS -destination 'platform=macOS,arch=x86_64'

For iOS and tvOS apps, destinationspecifier supports the platform, name, and id keys as seen in Table 2.

**Table 2** Supported keys for iOS and tvOS apps.
Key	Description	Value
platform	The supported destination for your unit tests.	iOS (for iOS apps) tvOS (for tvOS apps)
name	The full name of your device to be used for your unit tests.	The name of your device as displayed in the Devices Organizer in Xcode.
id	The identifier of your device to be used for your unit tests.	See Locate a device identifier for more information about getting your device identifier.

The name and id keys are intergeably used with platform, which is a required key as seen in Listing 11 and Listing 12.

Listing 11 Tests the iOS scheme on a device identified by 965058a1c30d845d0dcec81cd6b908650a0d701c.

xcodebuild test -workspace MyApplication.xcworkspace -scheme iOSApp -destination 'platform=iOS,id=965058a1c30d845d0dcec81cd6b908650a0d701c'

Listing 12 Testing the iOSApp scheme on an iPhone.

$ xcodebuild test -workspace MyApplication.xcworkspace -scheme iOSApp -destination 'platform=iOS,name=iPhone'

...

=== BUILD TARGET iOSApp OF PROJECT iOSApp WITH CONFIGURATION Debug ===

...

=== BUILD TARGET iOSAppTests OF PROJECT iOSApp WITH CONFIGURATION Debug ===

...

=== BUILD TARGET iOSAppUITests OF PROJECT iOSApp WITH CONFIGURATION Debug ===

...

Test Suite 'All tests' started at ...

Test Suite 'iOSAppTests.xctest' started at ...

Test Suite 'SecondTestClass' started at ...

Test Case '-[iOSAppTests.SecondTestClass testExampleA]' started.

Test Case '-[iOSAppTests.SecondTestClass testExampleB]' started.

Test Suite 'SecondTestClass' passed at ...

...

Test Suite 'iOSAppTests' started at ...

Test Case '-[iOSAppTests.iOSAppTests testExample]' started.

Test Case '-[iOSAppTests.iOSAppTests testPerformanceExample]' started.

Test Suite 'iOSAppTests' passed at ...

...

Test Suite 'iOSAppUITests.xctest' started at ...

Test Suite 'iOSAppUITests' started at ...

Test Case '-[iOSAppUITests.iOSAppUITests testLabels]' started.

Test Case '-[iOSAppUITests.iOSAppUITests testToolbar]' started.

...

** TEST SUCCEEDED **

Listing 13 Do not test iOSAppUITests on an iPhone.

xcodebuild test -workspace MyApplication.xcworkspace -scheme iOSApp -destination 'platform=iOS,name=iPhone' -skip-testing:iOSAppUITests

Listing 14 Only testing SecondTestClass' testExampleB in the iOSAppTests unit test.

$ xcodebuild test -workspace MyApplication.xcworkspace -scheme iOSApp -destination 'platform=iOS,name=iPhone' -only-testing:iOSAppTests/SecondTestClass/testExampleB

...

=== BUILD TARGET iOSApp OF PROJECT iOSApp WITH CONFIGURATION Debug ===

...

=== BUILD TARGET iOSAppTests OF PROJECT iOSApp WITH CONFIGURATION Debug ===

...

=== BUILD TARGET iOSAppUITests OF PROJECT iOSApp WITH CONFIGURATION Debug ===

...

Test Suite 'Selected tests' started at ...

Test Suite 'iOSAppTests.xctest' started at ...

Test Suite 'SecondTestClass' started at ...

Test Case '-[iOSAppTests.SecondTestClass testExampleB]' started.

Test Case '-[iOSAppTests.SecondTestClass testExampleB]' passed (0.007 seconds).

Test Suite 'SecondTestClass' passed at ...

...

** TEST SUCCEEDED **

For iOS Simulator and tvOS Simulator apps, destinationspecifier supports the platform, name, id, and OS keys as seen in Table 3.

**Table 3** Supported keys for iOS Simulator and tvOS Simulator apps.
Key	Description	Value
platform	The supported destination for your unit tests.	iOS Simulator (iOS apps) tvOS Simulator (tvOS apps)
name	The full name of the simulator (iOS simulator for iOS apps and tvOS Simulator for tvOS apps) to be used for your unit tests and as displayed in the run destination of your Xcode project.	The name of your device as displayed in the Devices Organizer in Xcode.
id	The identifier of your device to be used for your unit tests.	See Locate a device identifier for more information about getting your device identifier.
OS	The version of iOS or tvOS to simulate such as 9.0 or the string latest to indicate the most recent version of iOS supported by your version of Xcode.	An iOS version, tvOS version, or latest

The name and id keys are intergeably used with platform, which is a required key as shown in Listing 15 and Listing 16. The OS key is optional.

Listing 15 Tests the iOS scheme on an iPad Pro (12.9 inch) with iOS 10.2 in the Simulator.

xcodebuild test -scheme iOS -destination 'platform=iOS Simulator,name=iPad Pro (12.9-inch),OS=10.2'

Listing 16 Tests the tvOS scheme on an tvOS Simulator identified by D6FA2C2A-E297-406A-AA22-624B4834ACB2.

xcodebuild test -scheme tvOS -destination 'platform=tvOS Simulator,id=D6FA2C2A-E297-406A-AA22-624B4834ACB2'

The -destination option also allows you to run the same unit test on multiple destinations. This is done by adding it multiple times to your xcodebuild test command as demonstrated in Listing 17.

Listing 17 Tests the iOS scheme in both the Simulator and on an iPod touch.

xcodebuild test -scheme iOS -destination 'platform=iOS Simulator,name=iPhone 6s,OS=10.3' -destination 'platform=iOS,name=iPod touch'

How do I implement the Build For Testing and Test Without Building features from the command line?

xcodebuild provides the build-for-testing action for Xcode's Product > Build For > Testing feature. You must specify a scheme to use it. To use it, execute the following command in Terminal:

xcodebuild build-for-testing [-workspace <your_workspace_name>]

                             [-project <your_project_name>]

                             -scheme <your_scheme_name>

                             -destination <destination-specifier>

See How do I run unit tests from the command line? for more information about xcodebuild build-for-testing's options.

Listing 18 Builds tests and associated targets in the tvOS scheme using the tvOS Simulator identified by D6FA2C2A-E297-406A-AA22-624B4834ACB2.

xcodebuild build-for-testing -scheme tvOS -destination 'platform=tvOS Simulator,id=D6FA2C2A-E297-406A-AA22-624B4834ACB2'

build-for-testing generates an xctestrun file, which is saved in the derived data folder. See xcodebuild.xctestrun's man page for more information about xctestrun files.

xcodebuild provides the test-without-building action for Xcode's Product > Perform Action > Test Without Building feature. test-without-building requires that you specify either a scheme or an xctestrun file.

Usage when using a scheme

xcodebuild test-without-building [-workspace <your_workspace_name>]

                                 [-project <your_project_name>]

                                 -scheme <your_scheme_name>

                                 -destination <destination-specifier>

                                 [-only-testing:<test-identifier>]

                                 [-skip-testing:<test-identifier>]

See How do I run unit tests from the command line? for more information about xcodebuild test-without-building's options.

Listing 19 Tests the iOSApp scheme on an iPhone SE with iOS 10.1 in the Simulator.

xcodebuild test-without-building -workspace MyApplication.xcworkspace -scheme iOSApp -destination 'platform=iOS Simulator,name=iPhone SE,OS=10.1'

Usage when using an xctestrun file

xcodebuild test-without-building -xctestrun <your_xctestrun_name>.xctestrun

                                 -destination <destination-specifier>

                                 [-only-testing:<test-identifier>]

                                 [-skip-testing:<test-identifier>]

where <your_xctestrun_name> is the name of the file containing your test run parameters. See xcodebuild.xctestrun' s man page for more information about xctestrun files. See How do I run unit tests from the command line? for more information about the other options.

Listing 20 Testing bundles and other parameters specified in iOSApp_iphonesimulator.xctestrun using the iOS Simulator identified by 6DC4A7BA-EA7F-40D6-A327-A0A9DF82F7F6.

$ cat iOSApp_iphonesimulator.xctestrun

<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">

<plist version="1.0">

<dict>

    <key>iOSAppTests</key>

    <dict>

        <key>BundleIdentifiersForCrashReportEmphasis</key>

        <array>

            <string>com.myapps.iOSApp</string>

            <string>com.myapps.iOSAppTests</string>

            <string>com.myapps.iOSAppUITests</string>

        </array>

…

        <key>TestBundlePath</key>

        <string>__TESTHOST__/PlugIns/iOSAppTests.xctest</string>

        <key>TestHostBundleIdentifier</key>

        <string>com.myapps.iOSApp</string>

        <key>TestHostPath</key>

        <string>__TESTROOT__/Debug-iphonesimulator/iOSApp.app</string>

…

    </dict>

    <key>iOSAppUITests</key>

…

</dict>

</plist>

$ xcodebuild test-without-building -xctestrun iOSApp_iphonesimulator.xctestrun -destination 'platform=iOS Simulator,id=6DC4A7BA-EA7F-40D6-A327-A0A9DF82F7F6'

Listing 21 Tests everything but iOSAppUITests specified in iOSApp_iphonesimulator.xctestrun using the iOS Simulator identified by 3D95DF14-E8B7-4A05-B65B-78F381B74B22.

xcodebuild test-without-building -xctestrun iOSApp_iphonesimulator.xctestrun -destination 'platform=iOS Simulator,id=3D95DF14-E8B7-4A05-B65B-78F381B74B22' -skip-testing:iOSAppUITests

What keys can I pass to the exportOptionsPlist flag?

To get all available keys for -exportOptionsPlist, run the following command in Terminal:

xcodebuild -help

Listing 22 Fetching all keys supported by -exportOptionsPlist.

$ xcodebuild -help

Usage: xcodebuild [-project <projectname>] [[-target <targetname>]...|-alltargets] [-configuration <configurationname>] [-arch <architecture>]

...

Available keys for -exportOptionsPlist:

    compileBitcode : Bool

...

    embedOnDemandResourcesAssetPacksInBundle : Bool

...

    iCloudContainerEnvironment

...

    manifest : Dictionary

...

    method : String

...

    onDemandResourcesAssetPacksBaseURL : String

...

    teamID : String

...

    thinning : String

...

    uploadBitcode : Bool

...

    uploadSymbols : Bool

...

See Figure 3 for a sample file that contains some options for the -exportOptionsPlist flag.

**Figure 3** Plist file with a list of options for the -exportOptionsPlist flag.

How do I archive and export my app for distribution?

To archive and export your app for distribution, run the following command in Terminal:

xcodebuild -exportArchive -archivePath <xcarchivepath> -exportPath <destinationpath> -exportOptionsPlist <path>

where <xcarchivepath> specifies the archive or the path of the archive to be exported, <destinationpath> specifies where to save the exported product, and <path> is the path to the file with a list of options for the -exportOptionsPlist flag.

Listing 23 Exports the iOSApp archive to the Release location with the options saved in the OptionsPlist.plist.

xcodebuild -exportArchive -archivePath iOSApp.xcarchive -exportPath Release/MyApp -exportOptionsPlist OptionsPlist.plist

Document Revision History

Date	Notes
2017-06-19	Updated the "How do I run unit tests from the command line?" question. Added the "How do I implement the Build For Testing and Test Without Building features from the command line?" and "What keys can I pass to the exportOptionsPlist flag?" questions.
	Updated the "How do I run unit tests from the command line?" question. Added the "How do I implement the Build For Testing and Test Without Building features from the command line?" and "What keys can I pass to the exportOptionsPlist flag?" questions.
2014-05-21	New document that provides answers to frequently asked questions about command-line tools.