Skip Command-Line Interface Reference
- Installing
- Skip Commands
- skip upgrade: Upgrade to the latest Skip version using Homebrew
- skip checkup: Run tests to ensure Skip is in working order
- skip doctor: Evaluate and diagnose Skip development environment
- skip verify: Verify Skip project
- skip init: Create a new Skip project
- skip export: Export the Gradle project and built artifacts
- skip test: Run parity tests and generate reports
- skip icon: Create and manage app icons
- skip devices: List connected devices and emulators/simulators
- skip android: Perform a native Android package command
- skip android build: Build the native project for Android
- skip android test: Test the native project on an Android device or emulator
- skip android sdk install: Install the native Swift Android SDK
The Skip command-line interface (CLI) is an installed tool that can be run from the terminal on macOS. It provides an interface for creating new Skip projects (both Framework and App projects), as well as running tests, validating projects, and exporting built artifacts for publication.
Installing
The skip CLI is installed using Homebrew. For complete details, see the Getting Started Guide.
Once Homebrew is set up, Skip can be installed (and updated) by running the Terminal command:
% brew install skiptools/skip/skip
==> Tapping skiptools/skip
Cloning into '/opt/homebrew/Library/Taps/skiptools/homebrew-skip'...
Tapped 1 cask (15 files, 417KB).
==> Downloading https://source.skip.tools/skip/releases/download/1.0.0/skip.zip
==> Installing dependencies: android-platform-tools
==> Downloading https://dl.google.com/android/repository/platform-tools_r34.0.5-darwin.zip
==> Installing Cask android-platform-tools
==> Linking Binary 'adb' to '/opt/homebrew/bin/adb'
🍺 android-platform-tools was successfully installed!
==> Installing Cask skip
==> Linking Binary 'skip' to '/opt/homebrew/bin/skip'
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Welcome to Skip 1.0.0!
Run "skip doctor" to check system requirements.
Run "skip checkup" to perform a full system evaluation.
Start with "skip init --open-xcode --appid=bundle.id project-name HelloSkip"
Visit https://skip.tools for documentation, samples, and FAQs.
Happy Skipping!
🍺 skip was successfully installed!
This will download and install the skip tool itself, as well as the gradle and JDK dependencies that are necessary for building and testing the Kotlin/Android side of your apps.
Skip Commands
OVERVIEW: skip 1.5.6
USAGE: skip <subcommand>
OPTIONS:
--version Show the version.
-h, --help Show help information.
SUBCOMMANDS:
version Print the skip version
doctor Evaluate and diagnose Skip development environment
checkup Run tests to ensure Skip is in working order
upgrade Upgrade to the latest Skip version using Homebrew
init Create a new Skip project
verify Verify Skip project
icon Create and manage app icons
android Perform a native Android package command
export Export the Gradle project and built artifacts
devices List connected devices and emulators/simulators
test Run parity tests and generate reports
See 'skip help <subcommand>' for detailed help.
skip upgrade: Upgrade to the latest Skip version using Homebrew
OVERVIEW: Upgrade to the latest Skip version using Homebrew
USAGE: skip upgrade <options>
OUTPUT OPTIONS:
-o, --output <path> Send output to the given file (stdout: -)
-E, --message-errout Emit messages to the output rather than stderr
-v, --verbose Whether to display verbose messages
-q, --quiet Quiet mode: suppress output
-J, --json Emit output as formatted JSON
-j, --json-compact Emit output as compact JSON
-M, --message-plain Show console messages as plain text rather than JSON
--log-file <path> Send log output to the file
-A, --json-array Wrap and delimit JSON output as an array
--plain/--no-plain Show no colors or progress animations (default:
--no-plain)
TOOL OPTIONS:
--xcodebuild <path> Xcode command path
--swift <path> Swift command path
--gradle <path> Gradle command path
--adb <path> ADB command path
--emulator <path> Android emulator path
--android-home <path> Path to the Android SDK (ANDROID_HOME)
OPTIONS:
--version Show the version.
-h, --help Show help information.
skip checkup: Run tests to ensure Skip is in working order
OVERVIEW: Run tests to ensure Skip is in working order
This command performs a full system checkup to ensure that Skip can create and
build a sample project. It runs all the checks performed by skip doctor, and
also creates and builds a conventional Skip app project.
USAGE: # Perform a basic system checkup
skip checkup
# Perform a system checkup for native app support
skip checkup --native
OUTPUT OPTIONS:
-o, --output <path> Send output to the given file (stdout: -)
-E, --message-errout Emit messages to the output rather than stderr
-v, --verbose Whether to display verbose messages
-q, --quiet Quiet mode: suppress output
-J, --json Emit output as formatted JSON
-j, --json-compact Emit output as compact JSON
-M, --message-plain Show console messages as plain text rather than JSON
--log-file <path> Send log output to the file
-A, --json-array Wrap and delimit JSON output as an array
--plain/--no-plain Show no colors or progress animations (default:
--no-plain)
TOOL OPTIONS:
--xcodebuild <path> Xcode command path
--swift <path> Swift command path
--gradle <path> Gradle command path
--adb <path> ADB command path
--emulator <path> Android emulator path
--android-home <path> Path to the Android SDK (ANDROID_HOME)
OPTIONS:
-c, --configuration <c> Configuration debug/release (default: release)
--double-check Check twice that sample build outputs produce
identical artifacts
--native Generate native app when running checkup
--native-app Generate native app when running checkup
--native-model Generate native module when running checkup
--fail-fast/--no-fail-fast
Fail immediately when an error occurs (default:
--fail-fast)
--project-name <name> Name of checkup project (default: hello-skip)
--module-name <module-name>
Name of checkup project module (default: HelloSkip)
--version Show the version.
-h, --help Show help information.
skip doctor: Evaluate and diagnose Skip development environment
OVERVIEW: Evaluate and diagnose Skip development environment
This command will check for system configuration and prerequisites. It is a
subset of the skip checkup command.
USAGE: skip doctor <options>
OUTPUT OPTIONS:
-o, --output <path> Send output to the given file (stdout: -)
-E, --message-errout Emit messages to the output rather than stderr
-v, --verbose Whether to display verbose messages
-q, --quiet Quiet mode: suppress output
-J, --json Emit output as formatted JSON
-j, --json-compact Emit output as compact JSON
-M, --message-plain Show console messages as plain text rather than JSON
--log-file <path> Send log output to the file
-A, --json-array Wrap and delimit JSON output as an array
--plain/--no-plain Show no colors or progress animations (default:
--no-plain)
TOOL OPTIONS:
--xcodebuild <path> Xcode command path
--swift <path> Swift command path
--gradle <path> Gradle command path
--adb <path> ADB command path
--emulator <path> Android emulator path
--android-home <path> Path to the Android SDK (ANDROID_HOME)
OPTIONS:
--native/--no-native Check for native SDK (default: --no-native)
--fail-fast/--no-fail-fast
Fail immediately when an error occurs (default:
--no-fail-fast)
--version Show the version.
-h, --help Show help information.
skip verify: Verify Skip project
OVERVIEW: Verify Skip project
This command is run on a Skip project to ensure that the structure and contents
are valid.
USAGE: skip verify <options>
OUTPUT OPTIONS:
-o, --output <path> Send output to the given file (stdout: -)
-E, --message-errout Emit messages to the output rather than stderr
-v, --verbose Whether to display verbose messages
-q, --quiet Quiet mode: suppress output
-J, --json Emit output as formatted JSON
-j, --json-compact Emit output as compact JSON
-M, --message-plain Show console messages as plain text rather than JSON
--log-file <path> Send log output to the file
-A, --json-array Wrap and delimit JSON output as an array
--plain/--no-plain Show no colors or progress animations (default:
--no-plain)
TOOL OPTIONS:
--xcodebuild <path> Xcode command path
--swift <path> Swift command path
--gradle <path> Gradle command path
--adb <path> ADB command path
--emulator <path> Android emulator path
--android-home <path> Path to the Android SDK (ANDROID_HOME)
OPTIONS:
--project <dir> Project folder (default: .)
--free/--no-free Validate free project
--fastlane/--no-fastlane
Validate fastlane config
--fail-fast/--no-fail-fast
Fail immediately when an error occurs (default:
--no-fail-fast)
--fix/--no-fix Attempt to automatically fix issues (default:
--no-fix)
--version Show the version.
-h, --help Show help information.
skip init: Create a new Skip project
OVERVIEW: Create a new Skip project
This command will create a conventional Skip app or library project.
USAGE: # Create a new transpiled app project
skip init --appid=some.app.id app-project AppName
# Create a new native app project
skip init --native-app --appid=some.app.id app-project AppName
# Create a new transpiled library project
skip init lib-project ModuleName
# Create a new native library project
skip init --native-model lib-project ModuleName
# Create a new app project with multiple modules
skip init --native-app --appid=some.app.id app-project AppName ModuleName
ARGUMENTS:
<project-name> Project folder name
<module-names> The module name(s) to create
OUTPUT OPTIONS:
-o, --output <path> Send output to the given file (stdout: -)
-E, --message-errout Emit messages to the output rather than stderr
-v, --verbose Whether to display verbose messages
-q, --quiet Quiet mode: suppress output
-J, --json Emit output as formatted JSON
-j, --json-compact Emit output as compact JSON
-M, --message-plain Show console messages as plain text rather than JSON
--log-file <path> Send log output to the file
-A, --json-array Wrap and delimit JSON output as an array
--plain/--no-plain Show no colors or progress animations (default:
--no-plain)
CREATE OPTIONS:
-d, --dir <directory> Base folder for project creation
-c, --configuration <c> Configuration debug/release (default: debug)
--resource-path <resource-path>
Resource folder name (default: Resources)
--swift-version <swift-version>
Swift version for project
--chain/--no-chain Create library dependencies between modules (default:
--chain)
--zero/--no-zero Add SKIP_ZERO environment check to Package.swift
(default: --no-zero)
--git-repo/--no-git-repo
Create a local git repository for the app (default:
--no-git-repo)
--free Create package with free software license
--show-tree/--no-show-tree
Display a file system tree summary of the new files
(default: --no-show-tree)
--native-app/--no-native-app
Whether to create a fully native app (default:
--no-native-app)
--native-model/--no-native-model
Whether to create a native model layer (default:
--no-native-model)
--kotlincompat/--no-kotlincompat
Whether native model should use kotlincompat
(default: --no-kotlincompat)
--module-tests/--no-module-tests
Whether to create test modules
--fastlane/--no-fastlane
Whether to create fastlane metadata (default:
--fastlane)
--github/--no-github Whether to create github metadata (default:
--no-github)
--validate-package/--no-validate-package
Validate generated Package.swift files (default:
--validate-package)
TOOL OPTIONS:
--xcodebuild <path> Xcode command path
--swift <path> Swift command path
--gradle <path> Gradle command path
--adb <path> ADB command path
--emulator <path> Android emulator path
--android-home <path> Path to the Android SDK (ANDROID_HOME)
BUILD OPTIONS:
--build/--no-build Run the project build (default: --build)
--test/--no-test Run the project tests (default: --no-test)
--verify/--no-verify Verify the project output (default: --no-verify)
OPTIONS:
--appid <bundleID> Embed the library as an app with the given bundle id
--no-icon Disable icon generation
--icon <icon> Path to icon input file (SVG, PDF, PNG)
--icon-background <hex> RGB hexadecimal color for icon background
--icon-foreground <hex> RGB hexadecimal color for icon foreground
--icon-shadow <decimal> The amount of shadow to draw around the target
--icon-inset <decimal> The amount of inset to place on the image
--version <version> Set the initial version to the given value
--apk/--no-apk Build the Android .apk file (default: --no-apk)
--ipa/--no-ipa Build the iOS .ipa file (default: --no-ipa)
--open-xcode Open the resulting Xcode project
--open-gradle Open the resulting Gradle project
--version Show the version.
-h, --help Show help information.
skip export: Export the Gradle project and built artifacts
OVERVIEW: Export the Gradle project and built artifacts
USAGE: skip export <options>
OUTPUT OPTIONS:
-o, --output <path> Send output to the given file (stdout: -)
-E, --message-errout Emit messages to the output rather than stderr
-v, --verbose Whether to display verbose messages
-q, --quiet Quiet mode: suppress output
-J, --json Emit output as formatted JSON
-j, --json-compact Emit output as compact JSON
-M, --message-plain Show console messages as plain text rather than JSON
--log-file <path> Send log output to the file
-A, --json-array Wrap and delimit JSON output as an array
--plain/--no-plain Show no colors or progress animations (default:
--no-plain)
TOOL OPTIONS:
--xcodebuild <path> Xcode command path
--swift <path> Swift command path
--gradle <path> Gradle command path
--adb <path> ADB command path
--emulator <path> Android emulator path
--android-home <path> Path to the Android SDK (ANDROID_HOME)
OPTIONS:
-d, --dir <directory> Export output folder
--package <package-name>
App package name
--module <ModuleName> Modules to export
--project <dir> Project folder (default: .)
--summary-file <file> Output summary path
--build/--no-build Build the Swift project before exporting (default:
--build)
--show-tree/--no-show-tree
Display a file system tree summary (default:
--no-show-tree)
--release Perform release build
--debug Perform debug build
--export-project/--no-export-project
Export project sources (default: --export-project)
--nested/--no-nested Output folders to variant sub-folders (default:
--no-nested)
--sdk-path <sdk dir> SDK path for export build
--scheme-name <scheme> Project scheme name to export
--version Show the version.
-h, --help Show help information.
skip test: Run parity tests and generate reports
OVERVIEW: Run parity tests and generate reports
USAGE: skip test <options>
OUTPUT OPTIONS:
-o, --output <path> Send output to the given file (stdout: -)
-E, --message-errout Emit messages to the output rather than stderr
-v, --verbose Whether to display verbose messages
-q, --quiet Quiet mode: suppress output
-J, --json Emit output as formatted JSON
-j, --json-compact Emit output as compact JSON
-M, --message-plain Show console messages as plain text rather than JSON
--log-file <path> Send log output to the file
-A, --json-array Wrap and delimit JSON output as an array
--plain/--no-plain Show no colors or progress animations (default:
--no-plain)
TOOL OPTIONS:
--xcodebuild <path> Xcode command path
--swift <path> Swift command path
--gradle <path> Gradle command path
--adb <path> ADB command path
--emulator <path> Android emulator path
--android-home <path> Path to the Android SDK (ANDROID_HOME)
OPTIONS:
--test/--no-test Run the project tests (default: --test)
--filter <Test.testFun> Test filter(s) to run
--project <dir> Project folder (default: .)
--xunit <xunit.xml> Path to xunit test report
--junit <folder> Path to junit test report
--max-column-length <n> Maximum table column length (default: 25)
-c, --configuration <c> Configuration debug/release (default: debug)
--summary-file <path> Output summary table
--version Show the version.
-h, --help Show help information.
skip icon: Create and manage app icons
OVERVIEW: Create and manage app icons
This command will create and update icons in the Darwin and Android folders of
a Skip project.
skip icon should be run in the root folder of a conventional Skip app project
that contains Darwin and Android folders.
USAGE: # Resize the given PNG icon for each of the required icon sizes
skip icon app_icon.png
# Resize separate icons for each of Android and iOS
skip icon --android app_icon_android.png
skip icon --darwin app_icon_darwin.png
# Generate a random icon set and open them in Preview.app
skip icon --open-preview --random-icon --random-background
# Generate new icons with a named color background
skip icon --open-preview --background skyblue
# Create new icons with a background gradient
skip icon --open-preview --background #3E8E41-#2F4F4F
# Create new icons with a background gradient overlaid with an SVG image
skip icon --open-preview --background #5C6BC0-#3B3F54 symbol.svg
# Create new icons with custom image inset and shadow radius
skip icon --background #F7DC6F-#F2C464 --inset 0.4 --shadow 0.02 symbol.svg
ARGUMENTS:
<icon-sources> Path or URL to icon source SVG, PNG, or PDF files
OUTPUT OPTIONS:
-o, --output <path> Send output to the given file (stdout: -)
-E, --message-errout Emit messages to the output rather than stderr
-v, --verbose Whether to display verbose messages
-q, --quiet Quiet mode: suppress output
-J, --json Emit output as formatted JSON
-j, --json-compact Emit output as compact JSON
-M, --message-plain Show console messages as plain text rather than JSON
--log-file <path> Send log output to the file
-A, --json-array Wrap and delimit JSON output as an array
--plain/--no-plain Show no colors or progress animations (default:
--no-plain)
OPTIONS:
-d, --dir <directory> Root folder for icon generation
--open-preview Open the generated icons in Preview
--android/--no-android Generate an Android icon set
--android-path <path> Path the Android resources root folder (default:
Android/app/src/main/res)
--darwin/--no-darwin Generate an Android icon set
--darwin-path <path> Path the Darwin icon assets folder (default:
Darwin/Assets.xcassets/AppIcon.appiconset)
--foreground <color> Name or RGB hex color/gradient for icon color
(default: white)
--background <color> Name or RGB hex color/gradient for icon background
--inset <amount> The percentage amount of inset for the shape
(default: 0.1)
--shadow <amount> The percentage amount of shadow to dear around the
path (default: 0.01)
--random-icon Create a random icon shape
--random-background Create a random icon color
--version Show the version.
-h, --help Show help information.
skip devices: List connected devices and emulators/simulators
OVERVIEW: List connected devices and emulators/simulators
This command will list all the connected Android emulators and devices and iOS
simulators and devices.
USAGE: skip devices <options>
TOOL OPTIONS:
--xcodebuild <path> Xcode command path
--swift <path> Swift command path
--gradle <path> Gradle command path
--adb <path> ADB command path
--emulator <path> Android emulator path
--android-home <path> Path to the Android SDK (ANDROID_HOME)
OUTPUT OPTIONS:
-o, --output <path> Send output to the given file (stdout: -)
-E, --message-errout Emit messages to the output rather than stderr
-v, --verbose Whether to display verbose messages
-q, --quiet Quiet mode: suppress output
-J, --json Emit output as formatted JSON
-j, --json-compact Emit output as compact JSON
-M, --message-plain Show console messages as plain text rather than JSON
--log-file <path> Send log output to the file
-A, --json-array Wrap and delimit JSON output as an array
--plain/--no-plain Show no colors or progress animations (default:
--no-plain)
OPTIONS:
--version Show the version.
-h, --help Show help information.
skip android: Perform a native Android package command
OVERVIEW: Perform a native Android package command
USAGE: skip android <subcommand>
OPTIONS:
--version Show the version.
-h, --help Show help information.
SUBCOMMANDS:
build Build the native project for Android
run Run the executable target Android device or emulator
test Test the native project on an Android device or
emulator
sdk Manage installation of Swift Android SDK
toolchain Manage installation of Swift Android Host Toolchain
See 'skip help android <subcommand>' for detailed help.
skip android build: Build the native project for Android
OVERVIEW: Build the native project for Android
USAGE: skip android build [<options>] [<args> ...]
ARGUMENTS:
<args> Command arguments
OUTPUT OPTIONS:
-o, --output <path> Send output to the given file (stdout: -)
-E, --message-errout Emit messages to the output rather than stderr
-v, --verbose Whether to display verbose messages
-q, --quiet Quiet mode: suppress output
-J, --json Emit output as formatted JSON
-j, --json-compact Emit output as compact JSON
-M, --message-plain Show console messages as plain text rather than JSON
--log-file <path> Send log output to the file
-A, --json-array Wrap and delimit JSON output as an array
--plain/--no-plain Show no colors or progress animations (default:
--no-plain)
TOOL OPTIONS:
--xcodebuild <path> Xcode command path
--swift <path> Swift command path
--gradle <path> Gradle command path
--adb <path> ADB command path
--emulator <path> Android emulator path
--android-home <path> Path to the Android SDK (ANDROID_HOME)
TOOLCHAIN OPTIONS:
--swift-version <v> Swift version to use
--sdk <path> Swift Android SDK path
--ndk <path> Android NDK path
--toolchain <path> Swift toolchain path
--package-path <path> Path to the package to run
--scratch-path <.build> Custom scratch directory path
-Xswiftc <Xswiftc> Pass flag through to all Swift compiler invocations
-Xcc <Xcc> Pass flag through to all C compiler invocations
-Xlinker <Xlinker> Pass flag through to all linker invocations
-Xcxx <Xcxx> Pass flag through to all C++ compiler invocations
-c, --configuration <debug>
Build with configuration
--arch <arch> Destination architectures (values: automatic,
current, default, all, aarch64, armv7, x86_64)
--android-api-level <level>
Android API level (default: 24)
--swift-sdk-home <path> Root path for Swift SDK
--bridge/--no-bridge Enable SKIP_BRIDGE bridging to Kotlin (default:
--bridge)
--aggregate/--no-aggregate
Enable bundling all libraries into a single shared
object (default: --no-aggregate)
--prune/--no-prune Prune non-dependent libraries from build output
(default: --prune)
OPTIONS:
-d, --dir <directory> Archive output folder
--version Show the version.
-h, --help Show help information.
skip android test: Test the native project on an Android device or emulator
OVERVIEW: Test the native project on an Android device or emulator
USAGE: skip android test [<options>] [<args> ...]
ARGUMENTS:
<args> Command arguments
OUTPUT OPTIONS:
-o, --output <path> Send output to the given file (stdout: -)
-E, --message-errout Emit messages to the output rather than stderr
-v, --verbose Whether to display verbose messages
-q, --quiet Quiet mode: suppress output
-J, --json Emit output as formatted JSON
-j, --json-compact Emit output as compact JSON
-M, --message-plain Show console messages as plain text rather than JSON
--log-file <path> Send log output to the file
-A, --json-array Wrap and delimit JSON output as an array
--plain/--no-plain Show no colors or progress animations (default:
--no-plain)
TOOL OPTIONS:
--xcodebuild <path> Xcode command path
--swift <path> Swift command path
--gradle <path> Gradle command path
--adb <path> ADB command path
--emulator <path> Android emulator path
--android-home <path> Path to the Android SDK (ANDROID_HOME)
TOOLCHAIN OPTIONS:
--swift-version <v> Swift version to use
--sdk <path> Swift Android SDK path
--ndk <path> Android NDK path
--toolchain <path> Swift toolchain path
--package-path <path> Path to the package to run
--scratch-path <.build> Custom scratch directory path
-Xswiftc <Xswiftc> Pass flag through to all Swift compiler invocations
-Xcc <Xcc> Pass flag through to all C compiler invocations
-Xlinker <Xlinker> Pass flag through to all linker invocations
-Xcxx <Xcxx> Pass flag through to all C++ compiler invocations
-c, --configuration <debug>
Build with configuration
--arch <arch> Destination architectures (values: automatic,
current, default, all, aarch64, armv7, x86_64)
--android-api-level <level>
Android API level (default: 24)
--swift-sdk-home <path> Root path for Swift SDK
--bridge/--no-bridge Enable SKIP_BRIDGE bridging to Kotlin (default:
--bridge)
--aggregate/--no-aggregate
Enable bundling all libraries into a single shared
object (default: --no-aggregate)
--prune/--no-prune Prune non-dependent libraries from build output
(default: --prune)
OPTIONS:
--cleanup/--no-cleanup Cleanup test folders after running (default:
--cleanup)
--remote-folder <path> Remote folder on emulator/device for build upload
--testing-library <library>
Testing library name (default: all)
--env <key=value> Environment key/value pairs for remote execution
--copy <file/folder> Additional files or folders to copy to Android
--version Show the version.
-h, --help Show help information.
skip android sdk install: Install the native Swift Android SDK
OVERVIEW: Install the native Swift Android SDK
USAGE: skip android sdk install <options>
OUTPUT OPTIONS:
-o, --output <path> Send output to the given file (stdout: -)
-E, --message-errout Emit messages to the output rather than stderr
-v, --verbose Whether to display verbose messages
-q, --quiet Quiet mode: suppress output
-J, --json Emit output as formatted JSON
-j, --json-compact Emit output as compact JSON
-M, --message-plain Show console messages as plain text rather than JSON
--log-file <path> Send log output to the file
-A, --json-array Wrap and delimit JSON output as an array
--plain/--no-plain Show no colors or progress animations (default:
--no-plain)
TOOL OPTIONS:
--xcodebuild <path> Xcode command path
--swift <path> Swift command path
--gradle <path> Gradle command path
--adb <path> ADB command path
--emulator <path> Android emulator path
--android-home <path> Path to the Android SDK (ANDROID_HOME)
OPTIONS:
--version <version> Version of the Swift Android SDK to install (default:
6.1)
--reinstall Reinstall the Android SDK
--version Show the version.
-h, --help Show help information.