Add support for Windows (#492)

This adds support for Windows.
The in-language path separator is still `/`, to ensure Pkl programs are cross-platform.

Log lines are written using CRLF endings on Windows.
Modules that are combined with `--module-output-separator` uses LF endings to ensure
consistent rendering across platforms.

`jpkl` does not work on Windows as a direct executable.
However, it can work with `java -jar jpkl`.

Additional details:

* Adjust git settings for Windows
* Add native executable for pkl cli
* Add jdk17 windows Gradle check in CI
* Adjust CI test reports to be staged within Gradle rather than by shell script.
* Fix: encode more characters that are not safe Windows paths
* Skip running tests involving symbolic links on Windows (these require administrator privileges to run).
* Introduce custom implementation of `IoUtils.relativize`
* Allow Gradle to initialize ExecutableJar `Property` values
* Add Gradle flag to enable remote JVM debugging

Co-authored-by: Philip K.F. Hölzenspies <holzensp@gmail.com>

.circleci/config.pkl

@@ -14,7 +14,7 @@
 // limitations under the License.
 //===----------------------------------------------------------------------===// 
 // File gets rendered to .circleci/config.yml via git hook.
-amends "package://pkg.pkl-lang.org/pkl-project-commons/pkl.impl.circleci@1.1.0#/PklCI.pkl"
+amends "package://pkg.pkl-lang.org/pkl-project-commons/pkl.impl.circleci@1.1.1#/PklCI.pkl"
 
 import "jobs/BuildNativeJob.pkl"
 import "jobs/GradleCheckJob.pkl"
@@ -96,6 +96,11 @@ local buildNativeJobs: Mapping<String, BuildNativeJob> = new {
       musl = true
       isRelease = _dist == "release"
     }
+    ["pkl-cli-windows-amd64-\(_dist)"] {
+      arch = "amd64"
+      os = "windows"
+      isRelease = _dist == "release"
+    }
   }
 }
 
@@ -108,6 +113,11 @@ local gradleCheckJobs: Mapping<String, GradleCheckJob> = new {
     javaVersion = "21.0"
     isRelease = false
   }
+  ["gradle-check-jdk17-windows"] {
+    javaVersion = "17.0"
+    isRelease = false
+    os = "windows"
+  }
 }
 
 jobs {

.circleci/config.yml

@@ -12,18 +12,12 @@ jobs:
     - run:
         command: |-
           export PATH=~/staticdeps/bin:$PATH
-          ./gradlew --info --stacktrace -DreleaseBuild=true pkl-cli:macExecutableAmd64 pkl-core:testMacExecutableAmd64
+          ./gradlew --info --stacktrace -DtestReportsDir=${HOME}/test-results -DreleaseBuild=true pkl-cli:macExecutableAmd64 pkl-core:testMacExecutableAmd64
         name: gradle buildNative
     - persist_to_workspace:
         root: '.'
         paths:
         - pkl-cli/build/executable/
-    - run:
-        command: |-
-          mkdir ~/test-results/
-          find . -type f -regex ".*/build/test-results/.*xml" -exec cp {} ~/test-results/ \;
-        name: Gather test results
-        when: always
     - store_test_results:
         path: ~/test-results
     environment:
@@ -94,18 +88,12 @@ jobs:
     - run:
         command: |-
           export PATH=~/staticdeps/bin:$PATH
-          ./gradlew --info --stacktrace -DreleaseBuild=true pkl-cli:linuxExecutableAmd64 pkl-core:testLinuxExecutableAmd64
+          ./gradlew --info --stacktrace -DtestReportsDir=${HOME}/test-results -DreleaseBuild=true pkl-cli:linuxExecutableAmd64 pkl-core:testLinuxExecutableAmd64
         name: gradle buildNative
     - persist_to_workspace:
         root: '.'
         paths:
         - pkl-cli/build/executable/
-    - run:
-        command: |-
-          mkdir ~/test-results/
-          find . -type f -regex ".*/build/test-results/.*xml" -exec cp {} ~/test-results/ \;
-        name: Gather test results
-        when: always
     - store_test_results:
         path: ~/test-results
     environment:
@@ -120,18 +108,12 @@ jobs:
     - run:
         command: |-
           export PATH=~/staticdeps/bin:$PATH
-          ./gradlew --info --stacktrace -DreleaseBuild=true pkl-cli:macExecutableAarch64 pkl-core:testMacExecutableAarch64
+          ./gradlew --info --stacktrace -DtestReportsDir=${HOME}/test-results -DreleaseBuild=true pkl-cli:macExecutableAarch64 pkl-core:testMacExecutableAarch64
         name: gradle buildNative
     - persist_to_workspace:
         root: '.'
         paths:
         - pkl-cli/build/executable/
-    - run:
-        command: |-
-          mkdir ~/test-results/
-          find . -type f -regex ".*/build/test-results/.*xml" -exec cp {} ~/test-results/ \;
-        name: Gather test results
-        when: always
     - store_test_results:
         path: ~/test-results
     environment:
@@ -186,18 +168,12 @@ jobs:
     - run:
         command: |-
           export PATH=~/staticdeps/bin:$PATH
-          ./gradlew --info --stacktrace -DreleaseBuild=true pkl-cli:linuxExecutableAarch64 pkl-core:testLinuxExecutableAarch64
+          ./gradlew --info --stacktrace -DtestReportsDir=${HOME}/test-results -DreleaseBuild=true pkl-cli:linuxExecutableAarch64 pkl-core:testLinuxExecutableAarch64
         name: gradle buildNative
     - persist_to_workspace:
         root: '.'
         paths:
         - pkl-cli/build/executable/
-    - run:
-        command: |-
-          mkdir ~/test-results/
-          find . -type f -regex ".*/build/test-results/.*xml" -exec cp {} ~/test-results/ \;
-        name: Gather test results
-        when: always
     - store_test_results:
         path: ~/test-results
     environment:
@@ -269,18 +245,12 @@ jobs:
     - run:
         command: |-
           export PATH=~/staticdeps/bin:$PATH
-          ./gradlew --info --stacktrace -DreleaseBuild=true pkl-cli:alpineExecutableAmd64 pkl-core:testAlpineExecutableAmd64
+          ./gradlew --info --stacktrace -DtestReportsDir=${HOME}/test-results -DreleaseBuild=true pkl-cli:alpineExecutableAmd64 pkl-core:testAlpineExecutableAmd64
         name: gradle buildNative
     - persist_to_workspace:
         root: '.'
         paths:
         - pkl-cli/build/executable/
-    - run:
-        command: |-
-          mkdir ~/test-results/
-          find . -type f -regex ".*/build/test-results/.*xml" -exec cp {} ~/test-results/ \;
-        name: Gather test results
-        when: always
     - store_test_results:
         path: ~/test-results
     environment:
@@ -289,6 +259,26 @@ jobs:
     resource_class: xlarge
     docker:
     - image: oraclelinux:8-slim
+  pkl-cli-windows-amd64-release:
+    steps:
+    - checkout
+    - run:
+        command: |-
+          export PATH=~/staticdeps/bin:$PATH
+          ./gradlew --info --stacktrace -DtestReportsDir=${HOME}/test-results -DreleaseBuild=true pkl-cli:windowsExecutableAmd64 pkl-core:testWindowsExecutableAmd64
+        name: gradle buildNative
+        shell: bash.exe
+    - persist_to_workspace:
+        root: '.'
+        paths:
+        - pkl-cli/build/executable/
+    - store_test_results:
+        path: ~/test-results
+    environment:
+      LANG: en_US.UTF-8
+    resource_class: windows.large
+    machine:
+      image: windows-server-2022-gui:current
   pkl-cli-macOS-amd64-snapshot:
     steps:
     - checkout
@@ -298,18 +288,12 @@ jobs:
     - run:
         command: |-
           export PATH=~/staticdeps/bin:$PATH
-          ./gradlew --info --stacktrace pkl-cli:macExecutableAmd64 pkl-core:testMacExecutableAmd64
+          ./gradlew --info --stacktrace -DtestReportsDir=${HOME}/test-results pkl-cli:macExecutableAmd64 pkl-core:testMacExecutableAmd64
         name: gradle buildNative
     - persist_to_workspace:
         root: '.'
         paths:
         - pkl-cli/build/executable/
-    - run:
-        command: |-
-          mkdir ~/test-results/
-          find . -type f -regex ".*/build/test-results/.*xml" -exec cp {} ~/test-results/ \;
-        name: Gather test results
-        when: always
     - store_test_results:
         path: ~/test-results
     environment:
@@ -380,18 +364,12 @@ jobs:
     - run:
         command: |-
           export PATH=~/staticdeps/bin:$PATH
-          ./gradlew --info --stacktrace pkl-cli:linuxExecutableAmd64 pkl-core:testLinuxExecutableAmd64
+          ./gradlew --info --stacktrace -DtestReportsDir=${HOME}/test-results pkl-cli:linuxExecutableAmd64 pkl-core:testLinuxExecutableAmd64
         name: gradle buildNative
     - persist_to_workspace:
         root: '.'
         paths:
         - pkl-cli/build/executable/
-    - run:
-        command: |-
-          mkdir ~/test-results/
-          find . -type f -regex ".*/build/test-results/.*xml" -exec cp {} ~/test-results/ \;
-        name: Gather test results
-        when: always
     - store_test_results:
         path: ~/test-results
     environment:
@@ -406,18 +384,12 @@ jobs:
     - run:
         command: |-
           export PATH=~/staticdeps/bin:$PATH
-          ./gradlew --info --stacktrace pkl-cli:macExecutableAarch64 pkl-core:testMacExecutableAarch64
+          ./gradlew --info --stacktrace -DtestReportsDir=${HOME}/test-results pkl-cli:macExecutableAarch64 pkl-core:testMacExecutableAarch64
         name: gradle buildNative
     - persist_to_workspace:
         root: '.'
         paths:
         - pkl-cli/build/executable/
-    - run:
-        command: |-
-          mkdir ~/test-results/
-          find . -type f -regex ".*/build/test-results/.*xml" -exec cp {} ~/test-results/ \;
-        name: Gather test results
-        when: always
     - store_test_results:
         path: ~/test-results
     environment:
@@ -472,18 +444,12 @@ jobs:
     - run:
         command: |-
           export PATH=~/staticdeps/bin:$PATH
-          ./gradlew --info --stacktrace pkl-cli:linuxExecutableAarch64 pkl-core:testLinuxExecutableAarch64
+          ./gradlew --info --stacktrace -DtestReportsDir=${HOME}/test-results pkl-cli:linuxExecutableAarch64 pkl-core:testLinuxExecutableAarch64
         name: gradle buildNative
     - persist_to_workspace:
         root: '.'
         paths:
         - pkl-cli/build/executable/
-    - run:
-        command: |-
-          mkdir ~/test-results/
-          find . -type f -regex ".*/build/test-results/.*xml" -exec cp {} ~/test-results/ \;
-        name: Gather test results
-        when: always
     - store_test_results:
         path: ~/test-results
     environment:
@@ -555,18 +521,12 @@ jobs:
     - run:
         command: |-
           export PATH=~/staticdeps/bin:$PATH
-          ./gradlew --info --stacktrace pkl-cli:alpineExecutableAmd64 pkl-core:testAlpineExecutableAmd64
+          ./gradlew --info --stacktrace -DtestReportsDir=${HOME}/test-results pkl-cli:alpineExecutableAmd64 pkl-core:testAlpineExecutableAmd64
         name: gradle buildNative
     - persist_to_workspace:
         root: '.'
         paths:
         - pkl-cli/build/executable/
-    - run:
-        command: |-
-          mkdir ~/test-results/
-          find . -type f -regex ".*/build/test-results/.*xml" -exec cp {} ~/test-results/ \;
-        name: Gather test results
-        when: always
     - store_test_results:
         path: ~/test-results
     environment:
@@ -575,18 +535,32 @@ jobs:
     resource_class: xlarge
     docker:
     - image: oraclelinux:8-slim
+  pkl-cli-windows-amd64-snapshot:
+    steps:
+    - checkout
+    - run:
+        command: |-
+          export PATH=~/staticdeps/bin:$PATH
+          ./gradlew --info --stacktrace -DtestReportsDir=${HOME}/test-results pkl-cli:windowsExecutableAmd64 pkl-core:testWindowsExecutableAmd64
+        name: gradle buildNative
+        shell: bash.exe
+    - persist_to_workspace:
+        root: '.'
+        paths:
+        - pkl-cli/build/executable/
+    - store_test_results:
+        path: ~/test-results
+    environment:
+      LANG: en_US.UTF-8
+    resource_class: windows.large
+    machine:
+      image: windows-server-2022-gui:current
   gradle-check-jdk17:
     steps:
     - checkout
     - run:
-        command: ./gradlew --info --stacktrace check
+        command: ./gradlew --info --stacktrace -DtestReportsDir=${HOME}/test-results check
         name: gradle check
-    - run:
-        command: |-
-          mkdir ~/test-results/
-          find . -type f -regex ".*/build/test-results/.*xml" -exec cp {} ~/test-results/ \;
-        name: Gather test results
-        when: always
     - store_test_results:
         path: ~/test-results
     environment:
@@ -597,32 +571,33 @@ jobs:
     steps:
     - checkout
     - run:
-        command: ./gradlew --info --stacktrace check
+        command: ./gradlew --info --stacktrace -DtestReportsDir=${HOME}/test-results check
         name: gradle check
-    - run:
-        command: |-
-          mkdir ~/test-results/
-          find . -type f -regex ".*/build/test-results/.*xml" -exec cp {} ~/test-results/ \;
-        name: Gather test results
-        when: always
     - store_test_results:
         path: ~/test-results
     environment:
       LANG: en_US.UTF-8
     docker:
     - image: cimg/openjdk:21.0
+  gradle-check-jdk17-windows:
+    steps:
+    - checkout
+    - run:
+        command: ./gradlew --info --stacktrace -DtestReportsDir=${HOME}/test-results check
+        name: gradle check
+    - store_test_results:
+        path: ~/test-results
+    environment:
+      LANG: en_US.UTF-8
+    resource_class: windows.large
+    machine:
+      image: windows-server-2022-gui:current
   bench:
     steps:
     - checkout
     - run:
-        command: ./gradlew --info --stacktrace bench:jmh
+        command: ./gradlew --info --stacktrace -DtestReportsDir=${HOME}/test-results bench:jmh
         name: bench:jmh
-    - run:
-        command: |-
-          mkdir ~/test-results/
-          find . -type f -regex ".*/build/test-results/.*xml" -exec cp {} ~/test-results/ \;
-        name: Gather test results
-        when: always
     - store_test_results:
         path: ~/test-results
     environment:
@@ -634,16 +609,10 @@ jobs:
     - checkout
     - run:
         command: |-
-          ./gradlew --info --stacktrace :pkl-gradle:build \
+          ./gradlew --info --stacktrace -DtestReportsDir=${HOME}/test-results :pkl-gradle:build \
             :pkl-gradle:compatibilityTestReleases \
             :pkl-gradle:compatibilityTestCandidate
         name: gradle compatibility
-    - run:
-        command: |-
-          mkdir ~/test-results/
-          find . -type f -regex ".*/build/test-results/.*xml" -exec cp {} ~/test-results/ \;
-        name: Gather test results
-        when: always
     - store_test_results:
         path: ~/test-results
     environment:
@@ -656,17 +625,11 @@ jobs:
     - attach_workspace:
         at: '.'
     - run:
-        command: ./gradlew --info --stacktrace publishToSonatype
+        command: ./gradlew --info --stacktrace -DtestReportsDir=${HOME}/test-results publishToSonatype
     - persist_to_workspace:
         root: '.'
         paths:
         - pkl-cli/build/executable/
-    - run:
-        command: |-
-          mkdir ~/test-results/
-          find . -type f -regex ".*/build/test-results/.*xml" -exec cp {} ~/test-results/ \;
-        name: Gather test results
-        when: always
     - store_test_results:
         path: ~/test-results
     environment:
@@ -679,17 +642,11 @@ jobs:
     - attach_workspace:
         at: '.'
     - run:
-        command: ./gradlew --info --stacktrace -DreleaseBuild=true publishToSonatype closeAndReleaseSonatypeStagingRepository
+        command: ./gradlew --info --stacktrace -DtestReportsDir=${HOME}/test-results -DreleaseBuild=true publishToSonatype closeAndReleaseSonatypeStagingRepository
     - persist_to_workspace:
         root: '.'
         paths:
         - pkl-cli/build/executable/
-    - run:
-        command: |-
-          mkdir ~/test-results/
-          find . -type f -regex ".*/build/test-results/.*xml" -exec cp {} ~/test-results/ \;
-        name: Gather test results
-        when: always
     - store_test_results:
         path: ~/test-results
     environment:
@@ -753,6 +710,9 @@ workflows:
     - gradle-check-jdk21:
         requires:
         - hold
+    - gradle-check-jdk17-windows:
+        requires:
+        - hold
     when:
       matches:
         value: << pipeline.git.branch >>
@@ -761,6 +721,7 @@ workflows:
     jobs:
     - gradle-check-jdk17
     - gradle-check-jdk21
+    - gradle-check-jdk17-windows
     - bench
     - gradle-compatibility
     - pkl-cli-macOS-amd64-snapshot
@@ -768,10 +729,12 @@ workflows:
     - pkl-cli-macOS-aarch64-snapshot
     - pkl-cli-linux-aarch64-snapshot
     - pkl-cli-linux-alpine-amd64-snapshot
+    - pkl-cli-windows-amd64-snapshot
     - deploy-snapshot:
         requires:
         - gradle-check-jdk17
         - gradle-check-jdk21
+        - gradle-check-jdk17-windows
         - bench
         - gradle-compatibility
         - pkl-cli-macOS-amd64-snapshot
@@ -779,6 +742,7 @@ workflows:
         - pkl-cli-macOS-aarch64-snapshot
         - pkl-cli-linux-aarch64-snapshot
         - pkl-cli-linux-alpine-amd64-snapshot
+        - pkl-cli-windows-amd64-snapshot
         context: pkl-maven-release
     - trigger-docsite-build:
         requires:
@@ -803,6 +767,12 @@ workflows:
             ignore: /.*/
           tags:
             only: /^v?\d+\.\d+\.\d+$/
+    - gradle-check-jdk17-windows:
+        filters:
+          branches:
+            ignore: /.*/
+          tags:
+            only: /^v?\d+\.\d+\.\d+$/
     - bench:
         filters:
           branches:
@@ -845,10 +815,17 @@ workflows:
             ignore: /.*/
           tags:
             only: /^v?\d+\.\d+\.\d+$/
+    - pkl-cli-windows-amd64-release:
+        filters:
+          branches:
+            ignore: /.*/
+          tags:
+            only: /^v?\d+\.\d+\.\d+$/
     - github-release:
         requires:
         - gradle-check-jdk17
         - gradle-check-jdk21
+        - gradle-check-jdk17-windows
         - bench
         - gradle-compatibility
         - pkl-cli-macOS-amd64-release
@@ -856,6 +833,7 @@ workflows:
         - pkl-cli-macOS-aarch64-release
         - pkl-cli-linux-aarch64-release
         - pkl-cli-linux-alpine-amd64-release
+        - pkl-cli-windows-amd64-release
         context: pkl-github-release
         filters:
           branches:
@@ -885,6 +863,7 @@ workflows:
     jobs:
     - gradle-check-jdk17
     - gradle-check-jdk21
+    - gradle-check-jdk17-windows
     - bench
     - gradle-compatibility
     - pkl-cli-macOS-amd64-release
@@ -892,6 +871,7 @@ workflows:
     - pkl-cli-macOS-aarch64-release
     - pkl-cli-linux-aarch64-release
     - pkl-cli-linux-alpine-amd64-release
+    - pkl-cli-windows-amd64-release
     when:
       matches:
         value: << pipeline.git.branch >>

.circleci/jobs/BuildNativeJob.pkl

@@ -16,12 +16,9 @@
 /// Builds the native `pkl` CLI
 extends "GradleJob.pkl"
 
-import "package://pkg.pkl-lang.org/pkl-pantry/com.circleci.v2@1.1.0#/Config.pkl"
+import "package://pkg.pkl-lang.org/pkl-pantry/com.circleci.v2@1.1.2#/Config.pkl"
 import "package://pkg.pkl-lang.org/pkl-pantry/pkl.experimental.uri@1.0.0#/URI.pkl"
 
-/// The OS to run on
-os: "macOS"|"linux"
-
 /// The architecture to use
 arch: "amd64"|"aarch64"
 
@@ -119,10 +116,14 @@ steps {
   new Config.RunStep {
     name = "gradle buildNative"
     local _os =
-      if (os == "macOS") "mac"
+      if (module.os == "macOS") "mac"
       else if (musl) "alpine"
+      else if (module.os == "windows") "windows"
       else "linux"
     local jobName = "\(_os)Executable\(arch.capitalize())"
+    when (module.os == "windows") {
+      shell = "bash.exe"
+    }
     command = #"""
       export PATH=~/staticdeps/bin:$PATH
       ./gradlew \#(module.gradleArgs) pkl-cli:\#(jobName) pkl-core:test\#(jobName.capitalize())
@@ -142,7 +143,8 @@ job {
       xcode = "15.3.0"
     }
     resource_class = "macos.m1.large.gen1"
-  } else {
+  }
+  when (os == "linux") {
     docker {
       new {
         image = if (arch == "aarch64") "arm64v8/oraclelinux:8-slim" else "oraclelinux:8-slim"
@@ -153,4 +155,10 @@ job {
     }
     resource_class = if (arch == "aarch64") "arm.xlarge" else "xlarge"
   }
+  when (os == "windows") {
+    machine {
+      image = "windows-server-2022-gui:current"
+    }
+    resource_class = "windows.large"
+  }
 }

.circleci/jobs/DeployJob.pkl

@@ -15,7 +15,7 @@
 //===----------------------------------------------------------------------===//
 extends "GradleJob.pkl"
 
-import "package://pkg.pkl-lang.org/pkl-pantry/com.circleci.v2@1.1.0#/Config.pkl"
+import "package://pkg.pkl-lang.org/pkl-pantry/com.circleci.v2@1.1.2#/Config.pkl"
 
 local self = this
 
@@ -27,6 +27,8 @@ job {
   }
 }
 
+os = "linux"
+
 steps {
   new Config.AttachWorkspaceStep { at = "." }
   new Config.RunStep {

.circleci/jobs/GradleCheckJob.pkl

@@ -15,9 +15,11 @@
 //===----------------------------------------------------------------------===//
 extends "GradleJob.pkl"
 
-import "package://pkg.pkl-lang.org/pkl-pantry/com.circleci.v2@1.1.0#/Config.pkl"
+import "package://pkg.pkl-lang.org/pkl-pantry/com.circleci.v2@1.1.2#/Config.pkl"
 
-javaVersion: "11.0"|"17.0"|"21.0"
+javaVersion: "17.0"|"21.0"
+
+os = "linux"
 
 steps {
   new Config.RunStep {
@@ -27,9 +29,17 @@ steps {
 }
 
 job {
-  docker {
-    new {
-      image = "cimg/openjdk:\(javaVersion)"
+  when (os == "linux") {
+    docker {
+      new {
+        image = "cimg/openjdk:\(javaVersion)"
+      }
     }
   }
+  when (os == "windows") {
+    machine {
+      image = "windows-server-2022-gui:current"
+    }
+    resource_class = "windows.large"
+  }
 }

.circleci/jobs/GradleJob.pkl

@@ -15,14 +15,18 @@
 //===----------------------------------------------------------------------===//
 abstract module GradleJob
 
-import "package://pkg.pkl-lang.org/pkl-pantry/com.circleci.v2@1.1.0#/Config.pkl"
+import "package://pkg.pkl-lang.org/pkl-pantry/com.circleci.v2@1.1.2#/Config.pkl"
 
 /// Whether this is a release build or not.
 isRelease: Boolean = false
 
+/// The OS to run on
+os: "macOS"|"linux"|"windows"
+
 fixed gradleArgs = new Listing {
   "--info"
   "--stacktrace"
+  "-DtestReportsDir=${HOME}/test-results"
   when (isRelease) {
     "-DreleaseBuild=true"
   }
@@ -37,15 +41,6 @@ job: Config.Job = new {
   steps {
     "checkout"
     ...module.steps
-    new Config.RunStep {
-      // find all test results and write them to the home dir
-      name = "Gather test results"
-      command = """
-        mkdir ~/test-results/
-        find . -type f -regex ".*/build/test-results/.*xml" -exec cp {} ~/test-results/ \\;
-        """
-      `when` = "always"
-    }
     new Config.StoreTestResults {
       path = "~/test-results"
     }

.circleci/jobs/SimpleGradleJob.pkl

@@ -15,12 +15,14 @@
 //===----------------------------------------------------------------------===//
 extends "GradleJob.pkl"
 
-import "package://pkg.pkl-lang.org/pkl-pantry/com.circleci.v2@1.1.0#/Config.pkl"
+import "package://pkg.pkl-lang.org/pkl-pantry/com.circleci.v2@1.1.2#/Config.pkl"
 
 name: String = command
 
 command: String
 
+os = "linux"
+
 steps {
   new Config.RunStep {
     name = module.name