Wrap Maven Central to the cache redirector

ci/build-helpers/build.gradle.kts

@@ -11,7 +11,9 @@ subprojects {
     version = project.property("deploy.version") as String
 
     repositories {
-        mavenCentral()
+        mavenCentral {
+            url = uri("https://cache-redirector.jetbrains.com/maven-central")
+        }
     }
 
     plugins.withType(JavaBasePlugin::class.java) {

ci/build-helpers/cli/buildSrc/build.gradle.kts

@@ -3,7 +3,9 @@ plugins {
 }
 
 repositories {
-    mavenCentral()
+    mavenCentral {
+        url = uri("https://cache-redirector.jetbrains.com/maven-central")
+    }
     maven("https://packages.jetbrains.team/maven/p/cmp/dev")
 }
 

ci/build-helpers/settings.gradle.kts

@@ -1 +1,10 @@
+pluginManagement {
+    repositories {
+        mavenCentral {
+            url = uri("https://cache-redirector.jetbrains.com/maven-central")
+        }
+        gradlePluginPortal()
+    }
+}
+
 include(":publishing")

ci/cache-redirector.init.gradle

@@ -0,0 +1,41 @@
+// Resolves Maven Central artifacts through JetBrains cache-redirector, to avoid hitting Maven Central rate limits (HTTP 429) on CI.
+// Used by Gradle plugin tests (TestProject.kt) and examples/validateExamples*.sh, the projects themselves don't depend on it.
+// The redirector has to go before Gradle Plugin Portal, as the portal redirects such artifacts to Maven Central.
+
+def redirectorName = "MavenCentralCacheRedirector"
+def redirectorUrl = "https://cache-redirector.jetbrains.com/maven-central"
+
+beforeSettings { settings ->
+    // Repositories declared in settings scripts are added after this one
+    settings.pluginManagement.repositories.maven {
+        name = redirectorName
+        url = redirectorUrl
+    }
+    settings.dependencyResolutionManagement.repositories.maven {
+        name = redirectorName
+        url = redirectorUrl
+    }
+}
+
+settingsEvaluated { settings ->
+    // Direct Maven Central is replaced by the redirector above:
+    // on 429 it fails the resolution instead of falling through to the next repositories (e.g. mavenLocal with snapshots)
+    [settings.pluginManagement.repositories, settings.dependencyResolutionManagement.repositories].each { repositories ->
+        repositories.removeAll { it instanceof MavenArtifactRepository && it.url.host == "repo.maven.apache.org" }
+
+        // Gradle Plugin Portal redirects artifacts it doesn't host (e.g. AGP from Google Maven) to Maven Central,
+        // so it goes last for other repositories to be checked first
+        def pluginPortals = repositories.findAll { it instanceof MavenArtifactRepository && it.url.host == "plugins.gradle.org" }
+        repositories.removeAll(pluginPortals)
+        pluginPortals.each { repositories.addLast(it) }
+    }
+}
+
+allprojects {
+    // Some projects declare repositories in build scripts, there direct Maven Central is redirected in place
+    repositories.configureEach { repository ->
+        if (repository instanceof MavenArtifactRepository && repository.url.host == "repo.maven.apache.org") {
+            repository.url = redirectorUrl
+        }
+    }
+}

ci/compose-uber-jar/build.gradle.kts

@@ -9,7 +9,9 @@ plugins {
 val properties = ComposeUberJarProperties()
 
 repositories {
-    mavenCentral()
+    mavenCentral {
+        url = uri("https://cache-redirector.jetbrains.com/maven-central")
+    }
     maven(properties.composeRepoUrl)
     google()
 }

ci/compose-uber-jar/settings.gradle.kts

@@ -1,2 +1,11 @@
+pluginManagement {
+    repositories {
+        mavenCentral {
+            url = uri("https://cache-redirector.jetbrains.com/maven-central")
+        }
+        gradlePluginPortal()
+    }
+}
+
 rootProject.name = "compose-uber-jar"
 

ci/templates/desktop-template/build.gradle.kts

@@ -7,7 +7,9 @@ plugins {
 }
 
 repositories {
-    mavenCentral()
+    mavenCentral {
+        url = uri("https://cache-redirector.jetbrains.com/maven-central")
+    }
     maven("https://packages.jetbrains.team/maven/p/cmp/dev")
     google()
 }

ci/templates/desktop-template/settings.gradle.kts

@@ -1,7 +1,10 @@
 pluginManagement {
     repositories {
-        gradlePluginPortal()
+        mavenCentral {
+            url = uri("https://cache-redirector.jetbrains.com/maven-central")
+        }
         maven("https://packages.jetbrains.team/maven/p/cmp/dev")
+        gradlePluginPortal()
     }
 
     plugins {

ci/templates/html-library-template/build.gradle.kts

@@ -5,7 +5,9 @@ plugins {
 }
 
 repositories {
-    mavenCentral()
+    mavenCentral {
+        url = uri("https://cache-redirector.jetbrains.com/maven-central")
+    }
     maven("https://packages.jetbrains.team/maven/p/cmp/dev")
     google()
 }

ci/templates/html-library-template/settings.gradle.kts

@@ -1,7 +1,10 @@
 pluginManagement {
     repositories {
-        gradlePluginPortal()
+        mavenCentral {
+            url = uri("https://cache-redirector.jetbrains.com/maven-central")
+        }
         maven("https://packages.jetbrains.team/maven/p/cmp/dev")
+        gradlePluginPortal()
     }
 
     plugins {

ci/templates/maven-test-project/pom.xml

@@ -17,10 +17,12 @@
         <compose.material3.version>1.9.0</compose.material3.version>
     </properties>
 
+    <!-- Maven Central is resolved through cache-redirector, to avoid its rate limits on CI.
+         The "central" id replaces the default Maven Central repository. -->
     <repositories>
         <repository>
-            <id>mavenCentral</id>
-            <url>https://repo1.maven.org/maven2/</url>
+            <id>MavenCentralCacheRedirector</id>
+            <url>https://cache-redirector.jetbrains.com/maven-central</url>
         </repository>
         <repository>
             <id>gMaven</id>
@@ -32,6 +34,13 @@
         </repository>
     </repositories>
 
+    <pluginRepositories>
+        <pluginRepository>
+            <id>MavenCentralCacheRedirector</id>
+            <url>https://cache-redirector.jetbrains.com/maven-central</url>
+        </pluginRepository>
+    </pluginRepositories>
+
     <build>
         <sourceDirectory>src/main/kotlin</sourceDirectory>
         <testSourceDirectory>src/test/kotlin</testSourceDirectory>

ci/templates/multiplatform-template/build.gradle.kts

@@ -13,7 +13,9 @@ plugins {
 subprojects {
     repositories {
         google()
-        mavenCentral()
+        mavenCentral {
+            url = uri("https://cache-redirector.jetbrains.com/maven-central")
+        }
         maven("https://packages.jetbrains.team/maven/p/cmp/dev")
     }
 }

ci/templates/multiplatform-template/settings.gradle.kts

@@ -1,8 +1,11 @@
 pluginManagement {
     repositories {
-        gradlePluginPortal()
+        mavenCentral {
+            url = uri("https://cache-redirector.jetbrains.com/maven-central")
+        }
         maven("https://packages.jetbrains.team/maven/p/cmp/dev")
         google()
+        gradlePluginPortal()
     }
 
     plugins {

components/buildSrc/build.gradle.kts

@@ -5,6 +5,9 @@ plugins {
 }
 
 repositories {
+    mavenCentral {
+        url = uri("https://cache-redirector.jetbrains.com/maven-central")
+    }
     google()
     gradlePluginPortal()
 }

components/buildSrc/settings.gradle.kts

@@ -1,5 +1,8 @@
 pluginManagement {
     repositories {
+        mavenCentral {
+            url = uri("https://cache-redirector.jetbrains.com/maven-central")
+        }
         gradlePluginPortal()
     }
 }

components/settings.gradle.kts

@@ -1,9 +1,11 @@
 pluginManagement {
     repositories {
         google()
-        gradlePluginPortal()
-        mavenCentral()
+        mavenCentral {
+            url = uri("https://cache-redirector.jetbrains.com/maven-central")
+        }
         maven("https://packages.jetbrains.team/maven/p/cmp/dev")
+        gradlePluginPortal()
         if (extra["compose.useMavenLocal"] == "true") {
             mavenLocal()
         }
@@ -31,7 +33,9 @@ dependencyResolutionManagement {
             mavenLocal() // mavenLocal should be the first to get the correct version of skiko during a local build.
         }
         google()
-        mavenCentral()
+        mavenCentral {
+            url = uri("https://cache-redirector.jetbrains.com/maven-central")
+        }
         maven("https://packages.jetbrains.team/maven/p/cmp/dev")
     }
 

examples/buildWithKotlinToolchain.sh

@@ -25,6 +25,10 @@ if [ -n "$compose_version" ]; then
     tar -C "$example" --exclude=./build -cf - . | tar -C "$temp_dir" -xf -
     echo "Building a copy of $example in $temp_dir with Compose $compose_version${kotlin_version:+ and Kotlin $kotlin_version}"
 
+    # Replaces the default Maven Central (for both dependencies and Kotlin compiler artifacts) with cache-redirector,
+    # to avoid its rate limits on CI
+    export KOTLIN_DEFAULT_MAVEN_CENTRAL_URL="https://cache-redirector.jetbrains.com/maven-central"
+
     template="validation-versions.module-template.yaml"
     {
         echo "repositories:"

examples/validateExamples.sh

@@ -22,14 +22,17 @@ fi
 compose_version="${1:-}"
 kotlin_version="${2:-}"
 
+# Resolves Maven Central through cache-redirector, to avoid its rate limits on CI
+init_script="$(cd "$(dirname "$0")/.." && pwd)/ci/cache-redirector.init.gradle"
+
 runGradle() {
     local example="$1"
     local task="$2"
     pushd "$example"
     if [ "${#version_args[@]}" -gt 0 ]; then
-        ./gradlew "$task" "${version_args[@]}"
+        ./gradlew "$task" --init-script "$init_script" "${version_args[@]}"
     else
-        ./gradlew "$task"
+        ./gradlew "$task" --init-script "$init_script"
     fi
     popd
 }

examples/validateExamplesWithJs.sh

@@ -22,14 +22,17 @@ fi
 compose_version="${1:-}"
 kotlin_version="${2:-}"
 
+# Resolves Maven Central through cache-redirector, to avoid its rate limits on CI
+init_script="$(cd "$(dirname "$0")/.." && pwd)/ci/cache-redirector.init.gradle"
+
 runGradle() {
     local example="$1"
     local task="$2"
     pushd "$example"
     if [ "${#version_args[@]}" -gt 0 ]; then
-        ./gradlew "$task" "${version_args[@]}"
+        ./gradlew "$task" --init-script "$init_script" "${version_args[@]}"
     else
-        ./gradlew "$task"
+        ./gradlew "$task" --init-script "$init_script"
     fi
     popd
 }

gradle-plugins/build.gradle.kts

@@ -14,7 +14,9 @@ subprojects {
     version = BuildProperties.deployVersion(project)
 
     repositories {
-        mavenCentral()
+        mavenCentral {
+            url = uri("https://cache-redirector.jetbrains.com/maven-central")
+        }
         google()
         mavenLocal()
         maven("https://packages.jetbrains.team/maven/p/kt/dev")

gradle-plugins/buildSrc/build.gradle.kts

@@ -3,6 +3,9 @@ plugins {
 }
 
 repositories {
+    mavenCentral {
+        url = uri("https://cache-redirector.jetbrains.com/maven-central")
+    }
     gradlePluginPortal()
 }
 

gradle-plugins/buildSrc/settings.gradle.kts

@@ -1,5 +1,8 @@
 pluginManagement {
     repositories {
+        mavenCentral {
+            url = uri("https://cache-redirector.jetbrains.com/maven-central")
+        }
         gradlePluginPortal()
     }
 }

gradle-plugins/compose/src/test/kotlin/org/jetbrains/compose/test/utils/TestProject.kt

@@ -63,6 +63,7 @@ class TestProject(
         "--stacktrace",
         "-Pkotlin.js.yarn=false",
         "-P${ComposeProperties.VERBOSE}=${testEnvironment.composeVerbose}",
+        "--init-script", File("../../ci/cache-redirector.init.gradle").absolutePath,
         if (testEnvironment.parsedGradleVersion < GradleVersion.version("8.0")) {
             null
         } else {

gradle-plugins/settings.gradle.kts

@@ -1,7 +1,9 @@
 pluginManagement {
     repositories {
+        mavenCentral {
+            url = uri("https://cache-redirector.jetbrains.com/maven-central")
+        }
         gradlePluginPortal()
-        mavenCentral()
     }
 }
 

html/build.gradle.kts

@@ -223,11 +223,13 @@ subprojects {
     }
 
     repositories {
-        gradlePluginPortal()
-        mavenCentral()
+        mavenCentral {
+            url = uri("https://cache-redirector.jetbrains.com/maven-central")
+        }
         maven {
             url = uri("https://packages.jetbrains.team/maven/p/cmp/dev")
         }
+        gradlePluginPortal()
         google()
         mavenLocal()
     }

html/buildSrc/build.gradle.kts

@@ -2,14 +2,16 @@ import org.jetbrains.kotlin.gradle.dsl.JvmTarget
 import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
 
 repositories {
-    gradlePluginPortal()
-    mavenCentral()
+    mavenCentral {
+        url = uri("https://cache-redirector.jetbrains.com/maven-central")
+    }
     maven {
         url = uri("https://packages.jetbrains.team/maven/p/cmp/dev")
     }
     maven {
         url = uri("https://packages.jetbrains.team/maven/p/ui/dev")
     }
+    gradlePluginPortal()
 }
 
 plugins {

html/buildSrc/settings.gradle.kts

@@ -2,14 +2,16 @@ pluginManagement {
     val kotlinVersion: String = settings.extra["kotlin.version"] as String
 
     repositories {
-        gradlePluginPortal()
-        mavenCentral()
+        mavenCentral {
+            url = uri("https://cache-redirector.jetbrains.com/maven-central")
+        }
         maven {
             url = uri("https://packages.jetbrains.team/maven/p/cmp/dev")
         }
         maven {
             url = uri("https://packages.jetbrains.team/maven/p/ui/dev")
         }
+        gradlePluginPortal()
     }
 
     resolutionStrategy {