apple · HT154 · Nov 4, 2025 · Nov 4, 2025 · bioball · Nov 4, 2025
diff --git a/.circleci/config.pkl b/.circleci/config.pkl
@@ -19,7 +19,8 @@ import "pkl:semver"
 
 local swiftTest = new RunStep {
   name = "swift test"
-  command = """
+  command =
+    """
     mkdir -p .out/test-results/
     swift test -vv --parallel --num-workers 1 --xunit-output .out/test-results/xunit.xml -Xswiftc -warnings-as-errors
     """
@@ -33,11 +34,13 @@ local class PklDistribution {
   fixed normalizedVersion: String = version.replaceAll(".", "-")
 
   /// The URL to download this distribution
-  fixed downloadUrl: String = "https://github.com/apple/pkl/releases/download/\(version)/pkl-linux-amd64"
+  fixed downloadUrl: String =
+    "https://github.com/apple/pkl/releases/download/\(version)/pkl-linux-amd64"
 
   fixed downloadRunStep: RunStep = new {
     name = "Downloading pkl-\(version)"
-    command = """
+    command =
+      """
       PKL=$(mktemp /tmp/pkl-\(version)-XXXXXX)
       curl -L "\(downloadUrl)" > $PKL
       chmod +x $PKL
@@ -47,26 +50,28 @@ local class PklDistribution {
 }
 
 local pklCurrent: PklDistribution = new {
-  version = "0.29.0"
+  version = "0.30.0"
 }
 
 local pklDistributions: Listing<PklDistribution> = new {
   new { version = "0.25.3" }
   pklCurrent
 }
 
-local typealias Platform ="iOS Simulator"|"watchOS Simulator"|"tvOS Simulator"|"visionOS Simulator"|"Mac Catalyst"
+local typealias Platform =
+  "iOS Simulator" | "watchOS Simulator" | "tvOS Simulator" | "visionOS Simulator" | "Mac Catalyst"
 
 local class SimulatorRuntime {
   name: String
   platform: Platform
-  fixed sdk: String = Map(
-    "iOS Simulator", "iphonesimulator",
-    "watchOS Simulator", "watchsimulator",
-    "tvOS Simulator", "appletvsimulator",
-    "visionOS Simulator", "xrsimulator",
-    "Mac Catalyst", "macosx"
-  )[platform]
+  fixed sdk: String =
+    Map(
+      "iOS Simulator", "iphonesimulator",
+      "watchOS Simulator", "watchsimulator",
+      "tvOS Simulator", "appletvsimulator",
+      "visionOS Simulator", "xrsimulator",
+      "Mac Catalyst", "macosx"
+    )[platform]
   hidden destination: String = "platform=\(platform),name=\(name)"
   settings: Mapping<String, Any> = new {
     ["ONLY_ACTIVE_ARCH"] = "YES"
@@ -239,8 +244,8 @@ jobs {
       }
     }
   }
-  
-  ["test-format"] {
+
+  ["test-format-swift"] {
     docker {
       new {
         image = "swift:6.1-rhel-ubi9"
@@ -254,6 +259,22 @@ jobs {
     }
   }
 
+  ["test-format-pkl"] {
+    docker {
+      new {
+        image = "cimg/base:2024.01"
+      }
+    }
+    steps {
+      "checkout"
+      pklCurrent.downloadRunStep
+      new RunStep {
+        name = "Check Formatting"
+        command = "make pkl-format-lint"
+      }
+    }
+  }
+
   ["pkl-gen-swift-macos"] {
     macos {
       xcode = "16.4.0"
@@ -263,7 +284,8 @@ jobs {
       "checkout"
       new RunStep {
         name = "Build pkl-gen-swift"
-        command = """
+        command =
+          """
           make pkl-gen-swift-release
           mkdir -p out/pkl-gen-swift/
           cp $(make pkl-gen-swift-release-output) out/pkl-gen-swift/pkl-gen-swift-macos.bin
@@ -285,7 +307,8 @@ jobs {
         "checkout"
         new RunStep {
           name = "Build pkl-gen-swift"
-          command = """
+          command =
+            """
             make pkl-gen-swift-release
             mkdir -p out/pkl-gen-swift/
             cp $(make pkl-gen-swift-release-output) out/pkl-gen-swift/pkl-gen-swift-linux-\(arch).bin
@@ -305,7 +328,8 @@ jobs {
       pklCurrent.downloadRunStep
       new RunStep {
         // TODO remove skip-publish-check after initial release
-        command = #"$PKL_EXEC project package --skip-publish-check --output-path out/pkl-package/ codegen/src/"#
+        command =
+          #"$PKL_EXEC project package --skip-publish-check --output-path out/pkl-package/ codegen/src/"#
       }
       new PersistToWorkspaceStep {
         paths {
@@ -326,7 +350,8 @@ jobs {
       new RunStep {
         name = "Do release"
         // language=bash
-        command = #"""
+        command =
+          #"""
           EXPECTED_VERSION=$(cat VERSION.txt)
 
           if [ "${EXPECTED_VERSION}" != "${CIRCLE_TAG}" ]; then

diff --git a/.circleci/config.yml b/.circleci/config.yml
@@ -25,16 +25,16 @@ jobs:
     resource_class: xlarge
     docker:
     - image: swift:6.1-rhel-ubi9
-  test-pkl-0-29-0:
+  test-pkl-0-30-0:
     steps:
     - checkout
     - run:
         command: |-
-          PKL=$(mktemp /tmp/pkl-0.29.0-XXXXXX)
-          curl -L "https://github.com/apple/pkl/releases/download/0.29.0/pkl-linux-amd64" > $PKL
+          PKL=$(mktemp /tmp/pkl-0.30.0-XXXXXX)
+          curl -L "https://github.com/apple/pkl/releases/download/0.30.0/pkl-linux-amd64" > $PKL
           chmod +x $PKL
           echo "export PKL_EXEC=$PKL" >> $BASH_ENV
-        name: Downloading pkl-0.29.0
+        name: Downloading pkl-0.30.0
     - run:
         command: |-
           mkdir -p .out/test-results/
@@ -120,13 +120,28 @@ jobs:
         command: /bin/hawkeye check --fail-if-unknown
     docker:
     - image: ghcr.io/korandoru/hawkeye
-  test-format:
+  test-format-swift:
     steps:
     - checkout
     - run:
         command: make swiftformat-lint
     docker:
     - image: swift:6.1-rhel-ubi9
+  test-format-pkl:
+    steps:
+    - checkout
+    - run:
+        command: |-
+          PKL=$(mktemp /tmp/pkl-0.30.0-XXXXXX)
+          curl -L "https://github.com/apple/pkl/releases/download/0.30.0/pkl-linux-amd64" > $PKL
+          chmod +x $PKL
+          echo "export PKL_EXEC=$PKL" >> $BASH_ENV
+        name: Downloading pkl-0.30.0
+    - run:
+        command: make pkl-format-lint
+        name: Check Formatting
+    docker:
+    - image: cimg/base:2024.01
   pkl-gen-swift-macos:
     steps:
     - checkout
@@ -180,11 +195,11 @@ jobs:
     - checkout
     - run:
         command: |-
-          PKL=$(mktemp /tmp/pkl-0.29.0-XXXXXX)
-          curl -L "https://github.com/apple/pkl/releases/download/0.29.0/pkl-linux-amd64" > $PKL
+          PKL=$(mktemp /tmp/pkl-0.30.0-XXXXXX)
+          curl -L "https://github.com/apple/pkl/releases/download/0.30.0/pkl-linux-amd64" > $PKL
           chmod +x $PKL
           echo "export PKL_EXEC=$PKL" >> $BASH_ENV
-        name: Downloading pkl-0.29.0
+        name: Downloading pkl-0.30.0
     - run:
         command: $PKL_EXEC project package --skip-publish-check --output-path out/pkl-package/ codegen/src/
     - persist_to_workspace:
@@ -265,7 +280,7 @@ workflows:
     - test-pkl-0-25-3:
         requires:
         - hold
-    - test-pkl-0-29-0:
+    - test-pkl-0-30-0:
         requires:
         - hold
     - test-ios-simulator:
@@ -283,7 +298,10 @@ workflows:
     - test-license-headers:
         requires:
         - hold
-    - test-format:
+    - test-format-swift:
+        requires:
+        - hold
+    - test-format-pkl:
         requires:
         - hold
     when:
@@ -293,13 +311,14 @@ workflows:
   main:
     jobs:
     - test-pkl-0-25-3
-    - test-pkl-0-29-0
+    - test-pkl-0-30-0
     - test-ios-simulator
     - test-watchos-simulator
     - test-tvos-simulator
     - test-mac-catalyst
     - test-license-headers
-    - test-format
+    - test-format-swift
+    - test-format-pkl
     when:
       equal:
       - main
@@ -312,7 +331,7 @@ workflows:
             ignore: /.*/
           tags:
             only: /^v?\d+\.\d+\.\d+$/
-    - test-pkl-0-29-0:
+    - test-pkl-0-30-0:
         filters:
           branches:
             ignore: /.*/
@@ -348,7 +367,13 @@ workflows:
             ignore: /.*/
           tags:
             only: /^v?\d+\.\d+\.\d+$/
-    - test-format:
+    - test-format-swift:
+        filters:
+          branches:
+            ignore: /.*/
+          tags:
+            only: /^v?\d+\.\d+\.\d+$/
+    - test-format-pkl:
         filters:
           branches:
             ignore: /.*/
@@ -357,13 +382,14 @@ workflows:
     - pkl-package:
         requires:
         - test-pkl-0-25-3
-        - test-pkl-0-29-0
+        - test-pkl-0-30-0
         - test-ios-simulator
         - test-watchos-simulator
         - test-tvos-simulator
         - test-mac-catalyst
         - test-license-headers
-        - test-format
+        - test-format-swift
+        - test-format-pkl
         filters:
           branches:
             ignore: /.*/
@@ -372,13 +398,14 @@ workflows:
     - pkl-gen-swift-macos:
         requires:
         - test-pkl-0-25-3
-        - test-pkl-0-29-0
+        - test-pkl-0-30-0
         - test-ios-simulator
         - test-watchos-simulator
         - test-tvos-simulator
         - test-mac-catalyst
         - test-license-headers
-        - test-format
+        - test-format-swift
+        - test-format-pkl
         filters:
           branches:
             ignore: /.*/
@@ -387,13 +414,14 @@ workflows:
     - pkl-gen-swift-linux-amd64:
         requires:
         - test-pkl-0-25-3
-        - test-pkl-0-29-0
+        - test-pkl-0-30-0
         - test-ios-simulator
         - test-watchos-simulator
         - test-tvos-simulator
         - test-mac-catalyst
         - test-license-headers
-        - test-format
+        - test-format-swift
+        - test-format-pkl
         filters:
           branches:
             ignore: /.*/
@@ -402,13 +430,14 @@ workflows:
     - pkl-gen-swift-linux-aarch64:
         requires:
         - test-pkl-0-25-3
-        - test-pkl-0-29-0
+        - test-pkl-0-30-0
         - test-ios-simulator
         - test-watchos-simulator
         - test-tvos-simulator
         - test-mac-catalyst
         - test-license-headers
-        - test-format
+        - test-format-swift
+        - test-format-pkl
         filters:
           branches:
             ignore: /.*/

diff --git a/Makefile b/Makefile
@@ -123,4 +123,10 @@ swiftformat-lint:
 license-format: .build/tools/hawkeye
 	.build/tools/hawkeye format
 
-format: swiftformat license-format
+pkl-format:
+	$(PKL_EXEC) format --grammar-version 1 --write .
+
+pkl-format-lint:
+	$(PKL_EXEC) format --grammar-version 1 --diff-name-only .
+
+format: swiftformat license-format pkl-format
diff --git a/Tests/PklSwiftTests/Fixtures/AnyType.pkl b/Tests/PklSwiftTests/Fixtures/AnyType.pkl
@@ -1,4 +1,3 @@
-
 class Bird {
   species: String
 }

diff --git a/Tests/PklSwiftTests/Fixtures/Collections.pkl b/Tests/PklSwiftTests/Fixtures/Collections.pkl
@@ -1,7 +1,6 @@
-
 res1: List<Int> = List(1, 2, 3)
 
-res2: Listing<Int> = new { 2; 3; 4; }
+res2: Listing<Int> = new { 2; 3; 4 }
 
 res3: List<List<Int>> = List(List(1), List(2), List(3))
 

diff --git a/Tests/PklSwiftTests/Fixtures/Collections2.pkl b/Tests/PklSwiftTests/Fixtures/Collections2.pkl
@@ -1 +1 @@
-res: Bytes = Bytes(1, 2, 3, 255)
+res: Bytes = Bytes(1, 2, 3, 255)
diff --git a/Tests/PklSwiftTests/Fixtures/ExtendedModule.pkl b/Tests/PklSwiftTests/Fixtures/ExtendedModule.pkl
@@ -2,4 +2,4 @@ extends "OpenModule.pkl"
 
 foo = "foo"
 
-bar = 10
+bar = 10
diff --git a/Tests/PklSwiftTests/Fixtures/Imports/UnusedClassDefs.pkl b/Tests/PklSwiftTests/Fixtures/Imports/UnusedClassDefs.pkl
@@ -1,4 +1,3 @@
 typealias ReferencedAlias = String
 
-class ThisClassShouldAlsoGenerate {
-}
+class ThisClassShouldAlsoGenerate {}
diff --git a/Tests/PklSwiftTests/Fixtures/OpenModule.pkl b/Tests/PklSwiftTests/Fixtures/OpenModule.pkl
@@ -17,4 +17,4 @@ open module OpenModule
 
 foo: String
 
-bar: Int
+bar: Int
Original file line number	Diff line number	Diff line change
		@@ -1 +1 @@
		res: Bytes = Bytes(1, 2, 3, 255)
		res: Bytes = Bytes(1, 2, 3, 255)
Original file line number	Diff line number	Diff line change
Expand Up		@@ -2,4 +2,4 @@ extends "OpenModule.pkl"

		foo = "foo"

		bar = 10
		bar = 10
Original file line number	Diff line number	Diff line change
Expand Up		@@ -17,4 +17,4 @@ open module OpenModule

		foo: String

		bar: Int
		bar: Int