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rules_xcodeproj

This repository contains rules for Bazel that can be used to generate Xcode projects from targets in your workspace.

If you run into any problems with these rules, please check our FAQ, check if another issue already exists and comment on it, or file a new issue!

Features

  • Full support for Xcode features:
    • Indexing (i.e. autocomplete, syntax highlighting, jump to definition)
    • Debugging
    • Runtime sanitizers
    • Inline warnings and errors
    • Fix-its (currently only in BwX mode)
    • Test selection and running
    • Embedded Targets (App Clips, App Extensions, and Watch Apps)
    • Dynamic frameworks
    • Xcode Previews
  • Focused Projects
    • Include a subset of your targets in Xcode
    • Unfocused targets are built with Bazel
    • Works in BwX mode as well!
  • Comprehensive Bazel rules support
    • Core Bazel C/C++/Objective-C
    • rules_swift
    • rules_apple
    • rules_ios
    • Most likely your custom rules as well!
  • Minimal configuration needed (see the usage section below)
  • It “just works”

We’ve also documented the high-level design goals of the ruleset.

Projects using rules_xcodeproj

  • BazelPods
  • Cash App
  • Envoy Mobile
  • Ergatta
  • Gojek
  • Lyft
  • Mercari
  • Reddit
  • Robinhood
  • Slack
  • Snap
  • Spotify
  • SwiftLint
  • Ten Ten
  • Tinder
  • Tokopedia

If you are also using rules_xcodeproj for your project, feel free to open a PR to include it in the list above.

Compatibility

rules_xcodeproj Bazel rules_apple rules_swift Xcode macOS Supporting Branch
1.16.0+ 6.3-7.x 1.0.1–2.x 1.x 13.3–15.x 13–14.x main
1.14.0-1.15.0 6.1-7.x 1.0.1–2.x 1.x 13.3–15.x 13–14.x -
1.7.0-1.13.0 5.3–6.x 1.0.1–2.x 1.x 13.3–15.x 12–13.x -
1.4.0-1.6.0 5.3–6.x 1.0.1–2.x 1.x 13.3–14.3 12–13.x -
1.0-1.3.3 5.3–6.x 1.0.1–2.x 1.x 13.3–14.2 12–13.x -

More versions of these tools and rulesets might be supported, but these are the ones we’ve officially tested with.

Installation

From the release you wish to use, copy the Bzlmod or WORKSPACE snippet into your repository. If you want to manually build a release archive, you can use this command: bazel build //distribution:release.

Usage

Please see the documentation in the docs directory and examples in the examples directory.

Simple iOS example

Given a root level BUILD file:

load(
  "@build_bazel_rules_apple//apple:ios.bzl",
  "ios_application",
  "ios_unit_test",
)
load("@build_bazel_rules_swift//swift:swift.bzl", "swift_library")
load(
    "@rules_xcodeproj//xcodeproj:defs.bzl",
    "top_level_target",
    "xcodeproj",
)

xcodeproj(
    name = "xcodeproj",
    project_name = "App",
    tags = ["manual"],
    top_level_targets = [
        top_level_target(":App", target_environments = ["device", "simulator"]),
        ":Tests",
    ],
)

ios_application(
    name = "App",
    bundle_id = "com.example.app",
    families = ["iphone", "ipad"],
    infoplists = [":Info.plist"],
    minimum_os_version = "15.0",
    visibility = ["//visibility:public"],
    deps = [":Lib"],
)

swift_library(
    name = "Lib",
    srcs = glob(["src/*.swift"]),
)

ios_unit_test(
    name = "Tests",
    bundle_id = "com.example.tests",
    minimum_os_version = "15.0",
    test_host = ":App",
    visibility = ["//visibility:public"],
    deps = [":TestLib"],
)

swift_library(
    name = "TestLib",
    srcs = glob(["test/*.swift"]),
)

You can then create the Xcode project with:

bazel run //:xcodeproj

The generated project will be in the workspace next to the BUILD file at App.xcodeproj.

Acknowledgements