feat(build-arena): AI-powered build performance benchmark system

.claude/settings.local.json

@@ -0,0 +1,53 @@
+{
+  "permissions": {
+    "allow": [
+      "Bash(fi)",
+      "Bash(xargs:*)",
+      "Bash(docker container prune:*)",
+      "Bash(open:*)",
+      "Bash(killall:*)",
+      "Bash(chmod:*)",
+      "Bash(/Users/rwalters/GitHub/elide/tools/build-arena/scripts/check-resources.sh:*)",
+      "Bash(../scripts/check-resources.sh)",
+      "Bash(docker image prune:*)",
+      "Bash(docker build:*)",
+      "Bash(docker logs:*)",
+      "Bash(lsof:*)",
+      "Bash(pnpm dev)",
+      "Bash(curl:*)",
+      "Bash(docker ps:*)",
+      "Bash(./build-images.sh:*)",
+      "Bash(docker exec:*)",
+      "Bash(docker:*)",
+      "Bash(pnpm --version:*)",
+      "Bash(node --version:*)",
+      "Bash(/dev/null)",
+      "Bash(pnpm install:*)",
+      "Bash(timeout 5 docker images:*)",
+      "Bash(timeout 10 curl:*)",
+      "WebFetch(domain:code.claude.com)",
+      "WebSearch",
+      "WebFetch(domain:github.com)",
+      "WebFetch(domain:support.claude.com)",
+      "Bash(npm info:*)",
+      "Bash(source backend/.env)",
+      "Bash(npm view:*)",
+      "WebFetch(domain:raw.githubusercontent.com)",
+      "Bash(source /Users/rwalters/GitHub/elide/tools/build-arena/backend/.env)",
+      "Bash(sqlite3:*)",
+      "Bash(pnpm drizzle-kit push:*)",
+      "Bash(cd:*)",
+      "Bash(cat:*)",
+      "Bash(pkill:*)",
+      "Bash(paste:*)",
+      "Bash(pnpm -s --filter backend dev:*)",
+      "Bash(pnpm exec tsx:*)"
+    ],
+    "deny": [],
+    "ask": []
+  },
+  "enableAllProjectMcpServers": true,
+  "enabledMcpjsonServers": [
+    "elide"
+  ]
+}

.gitignore

@@ -1,5 +1,6 @@
 .venv/
 .DS_Store
+TODO.md
 .dev/cache
 .dev/dependencies
 .dev/coverage
@@ -60,3 +61,8 @@ README.md.br
 node_modules
 .intellijPlatform/
 cosign.key
+
+# External submodule build artifacts
+external/ktoml/build/
+external/ktoml/.gradle/
+external/ktoml/kotlin-js-store/

.gitmodules

@@ -18,3 +18,6 @@
 	url = [email protected]:google/boringssl.git
 	ignore = dirty
 
+[submodule "external/ktoml"]
+	path = external/ktoml
+	url = https://github.com/rjwalters/ktoml.git

build.gradle.kts

@@ -657,6 +657,106 @@ fun forceDisableNpmTasks() {
   tasks.findByName("setupNodeJs")?.let { forceDisableTask(it) }
 }
 
+// --- Tasks: Git Submodule Initialization
+//
+// Automatically initialize git submodules if they're not present.
+// This ensures external/ktoml is available without manual intervention.
+//
+val initSubmodules by tasks.registering(Exec::class) {
+  description = "Initialize git submodules if not already initialized"
+  group = "build setup"
+
+  val ktomlDir = file("external/ktoml")
+  onlyIf { !ktomlDir.exists() || ktomlDir.list()?.isEmpty() != false }
+
+  commandLine("git", "submodule", "update", "--init", "--recursive")
+
+  doFirst {
+    logger.lifecycle("Initializing git submodules...")
+  }
+}
+
+// Make all projects depend on submodule initialization
+allprojects {
+  tasks.matching { it.name != "initSubmodules" }.configureEach {
+    dependsOn(initSubmodules)
+  }
+}
+
+// --- Tasks: Build Dependency Checking
+//
+// Check for required build tools before attempting native builds.
+// Provides helpful error messages with installation instructions.
+//
+val checkNativeBuildDeps by tasks.registering {
+  description = "Check for required native build dependencies (make, gcc, etc.)"
+  group = "build setup"
+
+  doLast {
+    val isLinux = System.getProperty("os.name").lowercase().contains("linux")
+    val isMac = System.getProperty("os.name").lowercase().contains("mac")
+
+    if (!isLinux && !isMac) {
+      logger.warn("Native build dependency checking only supported on Linux and macOS")
+      return@doLast
+    }
+
+    val missingTools = mutableListOf<String>()
+
+    // Check for make
+    try {
+      exec {
+        commandLine("which", "make")
+        standardOutput = java.io.ByteArrayOutputStream()
+        errorOutput = java.io.ByteArrayOutputStream()
+        isIgnoreExitValue = true
+      }.apply {
+        if (exitValue != 0) missingTools.add("make")
+      }
+    } catch (e: Exception) {
+      missingTools.add("make")
+    }
+
+    // Check for gcc/clang
+    val hasCompiler = try {
+      exec {
+        commandLine("which", "gcc")
+        standardOutput = java.io.ByteArrayOutputStream()
+        errorOutput = java.io.ByteArrayOutputStream()
+        isIgnoreExitValue = true
+      }.exitValue == 0 || exec {
+        commandLine("which", "clang")
+        standardOutput = java.io.ByteArrayOutputStream()
+        errorOutput = java.io.ByteArrayOutputStream()
+        isIgnoreExitValue = true
+      }.exitValue == 0
+    } catch (e: Exception) {
+      false
+    }
+
+    if (!hasCompiler) {
+      missingTools.add("gcc/clang")
+    }
+
+    if (missingTools.isNotEmpty()) {
+      val installCmd = when {
+        isLinux -> "sudo apt-get install -y build-essential"
+        isMac -> "xcode-select --install"
+        else -> "install build tools for your platform"
+      }
+
+      logger.warn("")
+      logger.warn("⚠️  Missing native build dependencies: ${missingTools.joinToString(", ")}")
+      logger.warn("   These are required for building native libraries (SQLite, BoringSSL, etc.)")
+      logger.warn("")
+      logger.warn("   To install: $installCmd")
+      logger.warn("")
+      logger.warn("   Alternatively, skip native builds with: -x buildThirdPartyNatives")
+      logger.warn("")
+    }
+  }
+}
+
 forceDisableNpmTasks()
 
 afterEvaluate {

gradle.properties

@@ -61,7 +61,7 @@ org.gradle.jvmargs = -XX:MaxMetaspaceSize=512m -XX:+UseG1GC -Xmx24g --add-opens=
   base/java.nio.channels=ALL-UNNAMED --add-opens=java.base/java.nio.channels.spi=ALL-UNNAMED --add-opens=java.base/java.\
   util.concurrent=ALL-UNNAMED --add-opens=java.base/java.util.concurrent.locks=ALL-UNNAMED --add-opens=java.base/java.\
   lang.ref=ALL-UNNAMED --add-opens=java.base/java.text=ALL-UNNAMED --add-opens=java.base/sun.util.calendar=ALL-UNNAMED \
-  --enable-native-access=ALL-UNNAMED --illegal-native-access=allow --sun-misc-unsafe-memory-access=allow
+  --enable-native-access=ALL-UNNAMED
 org.gradle.unsafe.isolated-projects = false
 org.gradle.configuration-cache = false
 org.gradle.configuration-cache.parallel = false
@@ -79,7 +79,7 @@ versions.java.language = 21
 versions.java.toolchain = 25
 versions.java.minimum = 21
 versions.java.target = 21
-versions.kotlin.sdk = 2.2.21
+versions.kotlin.sdk = 2.3.0-Beta2
 versions.kotlin.language = 2.1
 versions.android.sdk.target = 33
 

gradle/elide.versions.toml

@@ -191,7 +191,7 @@ kover-plugin = "0.9.1"
 ksp = "2.2.21-2.0.4"
 ktor = "3.3.1"
 ktlint = "1.1.1"
-ktoml = "0.7.1"
+ktoml = "0.8.9-rjwalters"
 larray = "0.2.1"
 lettuce = "6.2.5.RELEASE"
 lmaxDisruptor = "4.0.0"

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-9.2.0-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.0.0-rc-2-bin.zip
 networkTimeout=10000
 validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME

package-lock.kdl

@@ -772,14 +772,6 @@ dependencies{
 "@types/node" ">=0.0.0"
     }
 }
-pkg "@types/conventional-commits-parser" "@types/node"{
-version "24.8.1"
-resolved "https://registry.npmjs.org/@types/node/-/node-24.8.1.tgz"
-integrity "sha512-alv65KGRadQVfVcG69MuB4IzdYVpRwMG/mq8KWOaoOdyY617P5ivaDiMCGOFDWD2sAn5Q0mR3mRtUOgm99hL9Q=="
-dependencies{
-undici-types ">=7.14.0 <7.15.0-0"
-    }
-}
 pkg "@types/debug"{
 version "4.1.12"
 resolved "https://registry.npmjs.org/@types/debug/-/debug-4.1.12.tgz"
@@ -4318,11 +4310,6 @@ version "5.9.3"
 resolved "https://registry.npmjs.org/typescript/-/typescript-5.9.3.tgz"
 integrity "sha512-jl1vZzPDinLr9eUt3J/t7V6FgNEw9QjvBPdysz9KfQDD41fQrC2Y4vKQdiaUpFT4bXlb1RHhLpp8wtm6M5TgSw=="
 }
-pkg undici-types{
-version "7.14.0"
-resolved "https://registry.npmjs.org/undici-types/-/undici-types-7.14.0.tgz"
-integrity "sha512-QQiYxHuyZ9gQUIrmPo3IA+hUl4KYk8uSA7cHrcKd/l3p1OTpZcM0Tbp9x7FAtXdAYhlasd60ncPpgu6ihG6TOA=="
-}
 pkg unicorn-magic{
 version "0.1.0"
 resolved "https://registry.npmjs.org/unicorn-magic/-/unicorn-magic-0.1.0.tgz"