Replace broken references to CircleCI (#1318)

DEVELOPMENT.adoc

@@ -102,7 +102,8 @@ To install:
 3. Select the zip file within `pkl-internal-intellij-plugin/build/distributions`.
 
 == Resources
-For automated build setup examples see our https://github.com/apple/pkl/blob/main/.circleci/[CircleCI] jobs like our https://github.com/apple/pkl/blob/main/.circleci/jobs/BuildNativeJob.pkl[BuildNativeJob.pkl], where we build Pkl automatically.
+
+For automated build setup examples see our https://github.com/apple/pkl/blob/main/.github/[GitHub Actions] jobs like our https://github.com/apple/pkl/blob/main/.github/jobs/BuildNativeJob.pkl[BuildNativeJob.pkl], where we build Pkl automatically.
 
 === Truffle
 

README.adoc

@@ -12,7 +12,7 @@
 :uri-installation: https://pkl-lang.org/main/current/pkl-cli/index.html#installation
 :uri-lang-reference: https://pkl-lang.org/main/current/language-reference/index.html
 :uri-ci-artifacts: https://s01.oss.sonatype.org/content/groups/public/org/pkl-lang/
-:uri-ci-pipeline: https://app.circleci.com/pipelines/github/apple/pkl
+:uri-ci-pipeline: https://github.com/apple/pkl/actions
 
 A configuration as code language with rich validation and tooling.
 
@@ -37,7 +37,10 @@ We'd love to hear from you!
 * Create an {uri-github-issue}[issue]
 * Ask a question on {uri-github-discussions}[GitHub Discussions]
 
-== Development image:https://circleci.com/gh/apple/pkl.svg?style=svg["Apple", link="https://app.circleci.com/pipelines/github/apple/pkl"]
+== Development
+
+image:https://github.com/apple/pkl/actions/workflows/main.yml/badge.svg?style=svg["Build (main)", link="https://github.com/apple/pkl/actions/workflows/main.yml"]
+
 * link:CONTRIBUTING.adoc[] for tips on pull requests and filing issues
 * link:DEVELOPMENT.adoc[] for build instructions
 * {uri-ci-artifacts}[Sonatype Repository] for the artifacts/binaries built by our {uri-ci-pipeline}[CI pipelines] (and those of our other tools and packages repositories).

buildSrc/src/main/kotlin/BuildInfo.kt

@@ -355,7 +355,7 @@ open class BuildInfo(private val project: Project) {
   }
 
   val hasMuslToolchain: Boolean by lazy {
-    // see "install musl" in .circleci/jobs/BuildNativeJob.pkl
+    // see .github/scripts/install_musl.sh
     File(System.getProperty("user.home"), "staticdeps/bin/x86_64-linux-musl-gcc").exists()
   }
 

buildSrc/src/main/kotlin/pklPublishLibrary.gradle.kts

@@ -1,5 +1,5 @@
 /*
- * Copyright © 2024 Apple Inc. and the Pkl project authors. All rights reserved.
+ * Copyright © 2024-2025 Apple Inc. and the Pkl project authors. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -54,8 +54,8 @@ publishing {
           url.set("https://github.com/apple/pkl/issues")
         }
         ciManagement {
-          system.set("Circle CI")
-          url.set("https://app.circleci.com/pipelines/github/apple/pkl")
+          system.set("GitHub Actions")
+          url.set("https://github.com/apple/pkl/actions")
         }
       }
     }

pkl-cli/pkl-cli.gradle.kts

@@ -138,8 +138,7 @@ fun Exec.useRootDirAndSuppressOutput() {
 }
 
 // 0.28 Preparing for JDK21 toolchains revealed that `testStartJavaExecutable` may pass, even though
-// the evaluator fails. To catch this, we need to test the evaluator. We render the CircleCI config
-// as a realistic test of the fat JAR.
+// the evaluator fails. To catch this, we eval a simple expression using the fat jar.
 val testEvalJavaExecutable by
   setupJavaExecutableRun("testEvalJavaExecutable", evalTestFlags) { useRootDirAndSuppressOutput() }
 

pkl-tools/pkl-tools.gradle.kts

@@ -170,8 +170,8 @@ publishing {
           url.set("https://github.com/apple/pkl/issues")
         }
         ciManagement {
-          system.set("Circle CI")
-          url.set("https://app.circleci.com/pipelines/github/apple/pkl")
+          system.set("GitHub Actions")
+          url.set("https://github.com/apple/pkl/actions")
         }
       }
     }