Try zero fill

Co-authored-by: paperdave <paperdave@users.noreply.github.com>
Co-authored-by: Jarred Sumner <jarred@jarredsumner.com>

.buildkite/ci.mjs

@@ -0,0 +1,453 @@
+#!/usr/bin/env node
+
+/**
+ * Build and test Bun on macOS, Linux, and Windows.
+ * @link https://buildkite.com/docs/pipelines/defining-steps
+ */
+
+import { writeFileSync } from "node:fs";
+import { join } from "node:path";
+import {
+  getCanaryRevision,
+  getChangedFiles,
+  getCommit,
+  getCommitMessage,
+  getLastSuccessfulBuild,
+  getMainBranch,
+  getRepositoryOwner,
+  getTargetBranch,
+  isBuildkite,
+  isFork,
+  isMainBranch,
+  isMergeQueue,
+  printEnvironment,
+  spawnSafe,
+} from "../scripts/utils.mjs";
+
+function toYaml(obj, indent = 0) {
+  const spaces = " ".repeat(indent);
+  let result = "";
+
+  for (const [key, value] of Object.entries(obj)) {
+    if (value === undefined) {
+      continue;
+    }
+
+    if (value === null) {
+      result += `${spaces}${key}: null\n`;
+      continue;
+    }
+
+    if (Array.isArray(value)) {
+      result += `${spaces}${key}:\n`;
+      value.forEach(item => {
+        if (typeof item === "object" && item !== null) {
+          result += `${spaces}- \n${toYaml(item, indent + 2)
+            .split("\n")
+            .map(line => `${spaces}  ${line}`)
+            .join("\n")}\n`;
+        } else {
+          result += `${spaces}- ${item}\n`;
+        }
+      });
+      continue;
+    }
+
+    if (typeof value === "object") {
+      result += `${spaces}${key}:\n${toYaml(value, indent + 2)}`;
+      continue;
+    }
+
+    if (
+      typeof value === "string" &&
+      (value.includes(":") || value.includes("#") || value.includes("'") || value.includes('"') || value.includes("\n"))
+    ) {
+      result += `${spaces}${key}: "${value.replace(/"/g, '\\"')}"\n`;
+      continue;
+    }
+
+    result += `${spaces}${key}: ${value}\n`;
+  }
+
+  return result;
+}
+
+function getPipeline(buildId) {
+  /**
+   * Helpers
+   */
+
+  const getKey = platform => {
+    const { os, arch, abi, baseline } = platform;
+
+    if (abi) {
+      if (baseline) {
+        return `${os}-${arch}-${abi}-baseline`;
+      }
+      return `${os}-${arch}-${abi}`;
+    }
+    if (baseline) {
+      return `${os}-${arch}-baseline`;
+    }
+
+    return `${os}-${arch}`;
+  };
+
+  const getLabel = platform => {
+    const { os, arch, abi, baseline, release } = platform;
+    let label = release ? `:${os}: ${release} ${arch}` : `:${os}: ${arch}`;
+    if (abi) {
+      label += `-${abi}`;
+    }
+    if (baseline) {
+      label += `-baseline`;
+    }
+    return label;
+  };
+
+  // https://buildkite.com/docs/pipelines/command-step#retry-attributes
+  const getRetry = (limit = 3) => {
+    return {
+      automatic: [
+        { exit_status: 1, limit: 1 },
+        { exit_status: -1, limit },
+        { exit_status: 255, limit },
+        { signal_reason: "agent_stop", limit },
+      ],
+    };
+  };
+
+  // https://buildkite.com/docs/pipelines/managing-priorities
+  const getPriority = () => {
+    if (isFork()) {
+      return -1;
+    }
+    if (isMainBranch()) {
+      return 2;
+    }
+    if (isMergeQueue()) {
+      return 1;
+    }
+    return 0;
+  };
+
+  /**
+   * Steps
+   */
+
+  const getBuildVendorStep = platform => {
+    const { os, arch, abi, baseline } = platform;
+
+    return {
+      key: `${getKey(platform)}-build-vendor`,
+      label: `build-vendor`,
+      agents: {
+        os,
+        arch,
+        abi,
+        queue: abi ? `build-${os}-${abi}` : `build-${os}`,
+      },
+      retry: getRetry(),
+      cancel_on_build_failing: isMergeQueue(),
+      env: {
+        ENABLE_BASELINE: baseline ? "ON" : "OFF",
+      },
+      command: "bun run build:ci --target dependencies",
+    };
+  };
+
+  const getBuildCppStep = platform => {
+    const { os, arch, abi, baseline } = platform;
+
+    return {
+      key: `${getKey(platform)}-build-cpp`,
+      label: `build-cpp`,
+      agents: {
+        os,
+        arch,
+        abi,
+        queue: abi ? `build-${os}-${abi}` : `build-${os}`,
+      },
+      retry: getRetry(),
+      cancel_on_build_failing: isMergeQueue(),
+      env: {
+        BUN_CPP_ONLY: "ON",
+        ENABLE_BASELINE: baseline ? "ON" : "OFF",
+      },
+      command: "bun run build:ci --target bun",
+    };
+  };
+
+  const getBuildZigStep = platform => {
+    const { os, arch, abi, baseline } = platform;
+    const toolchain = getKey(platform);
+
+    return {
+      key: `${getKey(platform)}-build-zig`,
+      label: `build-zig`,
+      agents: {
+        queue: "build-zig",
+      },
+      retry: getRetry(),
+      cancel_on_build_failing: isMergeQueue(),
+      env: {
+        ENABLE_BASELINE: baseline ? "ON" : "OFF",
+      },
+      command: `bun run build:ci --target bun-zig --toolchain ${toolchain}`,
+    };
+  };
+
+  const getBuildBunStep = platform => {
+    const { os, arch, abi, baseline } = platform;
+
+    return {
+      key: `${getKey(platform)}-build-bun`,
+      label: `build-bun`,
+      depends_on: [
+        `${getKey(platform)}-build-vendor`,
+        `${getKey(platform)}-build-cpp`,
+        `${getKey(platform)}-build-zig`,
+      ],
+      agents: {
+        os,
+        arch,
+        abi,
+        queue: `build-${os}`,
+      },
+      retry: getRetry(),
+      cancel_on_build_failing: isMergeQueue(),
+      env: {
+        BUN_LINK_ONLY: "ON",
+        ENABLE_BASELINE: baseline ? "ON" : "OFF",
+      },
+      command: "bun run build:ci --target bun",
+    };
+  };
+
+  const getTestBunStep = platform => {
+    const { os, arch, abi, distro, release } = platform;
+
+    let name;
+    if (os === "darwin" || os === "windows") {
+      name = getLabel({ ...platform, release });
+    } else {
+      name = getLabel({ ...platform, os: distro, release });
+    }
+
+    let agents;
+    if (os === "darwin") {
+      agents = { os, arch, abi, queue: `test-darwin` };
+    } else if (os === "windows") {
+      agents = { os, arch, abi, robobun: true };
+    } else {
+      agents = { os, arch, abi, distro, release, robobun: true };
+    }
+
+    let command;
+    if (os === "windows") {
+      command = `node .\\scripts\\runner.node.mjs --step ${getKey(platform)}-build-bun`;
+    } else {
+      command = `./scripts/runner.node.mjs --step ${getKey(platform)}-build-bun`;
+    }
+
+    let parallelism;
+    if (os === "darwin") {
+      parallelism = 2;
+    } else {
+      parallelism = 10;
+    }
+
+    let depends;
+    let env;
+    if (buildId) {
+      env = {
+        BUILDKITE_ARTIFACT_BUILD_ID: buildId,
+      };
+    } else {
+      depends = [`${getKey(platform)}-build-bun`];
+    }
+
+    let retry;
+    if (os !== "windows") {
+      // When the runner fails on Windows, Buildkite only detects an exit code of 1.
+      // Because of this, we don't know if the run was fatal, or soft-failed.
+      retry = getRetry();
+    }
+
+    return {
+      key: `${getKey(platform)}-${distro}-${release.replace(/\./g, "")}-test-bun`,
+      label: `${name} - test-bun`,
+      depends_on: depends,
+      agents,
+      retry,
+      cancel_on_build_failing: isMergeQueue(),
+      soft_fail: isMainBranch(),
+      parallelism,
+      command,
+      env,
+    };
+  };
+
+  /**
+   * Config
+   */
+
+  const buildPlatforms = [
+    { os: "darwin", arch: "aarch64" },
+    { os: "darwin", arch: "x64" },
+    { os: "linux", arch: "aarch64" },
+    // { os: "linux", arch: "aarch64", abi: "musl" }, // TODO:
+    { os: "linux", arch: "x64" },
+    { os: "linux", arch: "x64", baseline: true },
+    // { os: "linux", arch: "x64", abi: "musl" }, // TODO:
+    { os: "windows", arch: "x64" },
+    { os: "windows", arch: "x64", baseline: true },
+  ];
+
+  const testPlatforms = [
+    { os: "darwin", arch: "aarch64", distro: "sonoma", release: "14" },
+    { os: "darwin", arch: "aarch64", distro: "ventura", release: "13" },
+    { os: "darwin", arch: "x64", distro: "sonoma", release: "14" },
+    { os: "darwin", arch: "x64", distro: "ventura", release: "13" },
+    { os: "linux", arch: "aarch64", distro: "debian", release: "12" },
+    { os: "linux", arch: "aarch64", distro: "ubuntu", release: "22.04" },
+    { os: "linux", arch: "aarch64", distro: "ubuntu", release: "20.04" },
+    // { os: "linux", arch: "aarch64", abi: "musl", distro: "alpine", release: "edge" }, // TODO:
+    { os: "linux", arch: "x64", distro: "debian", release: "12" },
+    { os: "linux", arch: "x64", distro: "ubuntu", release: "22.04" },
+    { os: "linux", arch: "x64", distro: "ubuntu", release: "20.04" },
+    { os: "linux", arch: "x64", distro: "debian", release: "12", baseline: true },
+    { os: "linux", arch: "x64", distro: "ubuntu", release: "22.04", baseline: true },
+    { os: "linux", arch: "x64", distro: "ubuntu", release: "20.04", baseline: true },
+    // { os: "linux", arch: "x64", abi: "musl", distro: "alpine", release: "edge" }, // TODO:
+    { os: "windows", arch: "x64", distro: "server", release: "2019" },
+    { os: "windows", arch: "x64", distro: "server", release: "2019", baseline: true },
+  ];
+
+  return {
+    priority: getPriority(),
+    steps: [
+      ...buildPlatforms.map(platform => {
+        const { os, arch, baseline } = platform;
+
+        let steps = [
+          ...testPlatforms
+            .filter(platform => platform.os === os && platform.arch === arch && baseline === platform.baseline)
+            .map(platform => getTestBunStep(platform)),
+        ];
+
+        if (!buildId) {
+          steps.unshift(
+            getBuildVendorStep(platform),
+            getBuildCppStep(platform),
+            getBuildZigStep(platform),
+            getBuildBunStep(platform),
+          );
+        }
+
+        return {
+          key: getKey(platform),
+          group: getLabel(platform),
+          steps,
+        };
+      }),
+    ],
+  };
+}
+
+async function main() {
+  printEnvironment();
+
+  console.log("Checking last successful build...");
+  const lastBuild = await getLastSuccessfulBuild();
+  if (lastBuild) {
+    const { id, path, commit_id: commit } = lastBuild;
+    console.log(" - Build ID:", id);
+    console.log(" - Build URL:", new URL(path, "https://buildkite.com/").toString());
+    console.log(" - Commit:", commit);
+  } else {
+    console.log(" - No build found");
+  }
+
+  console.log("Checking changed files...");
+  const baseRef = isFork() ? `${getRepositoryOwner()}:${getCommit()}` : getCommit();
+  console.log(" - Base Ref:", baseRef);
+  const headRef = lastBuild?.commit_id || getTargetBranch() || getMainBranch();
+  console.log(" - Head Ref:", headRef);
+
+  const changedFiles = await getChangedFiles(undefined, baseRef, headRef);
+  if (changedFiles) {
+    if (changedFiles.length) {
+      changedFiles.forEach(filename => console.log(` - ${filename}`));
+    } else {
+      console.log(" - No changed files");
+    }
+  }
+
+  const isDocumentationFile = filename => /^(\.vscode|\.github|bench|docs|examples)|\.(md)$/i.test(filename);
+  const isTestFile = filename => /^test/i.test(filename) || /runner\.node\.mjs$/i.test(filename);
+
+  console.log("Checking if CI should be skipped...");
+  {
+    const message = getCommitMessage();
+    const match = /\[(skip ci|no ci|ci skip|ci no)\]/i.exec(message);
+    if (match) {
+      const [, reason] = match;
+      console.log(" - Yes, because commit message contains:", reason);
+      return;
+    }
+  }
+  if (changedFiles && changedFiles.every(filename => isDocumentationFile(filename))) {
+    console.log(" - Yes, because all changed files are documentation");
+    return;
+  }
+
+  console.log("Checking if build should be skipped...");
+  let skipBuild;
+  {
+    const message = getCommitMessage();
+    const match = /\[(only tests?|tests? only|skip build|no build|build skip|build no)\]/i.exec(message);
+    if (match) {
+      const [, reason] = match;
+      console.log(" - Yes, because commit message contains:", reason);
+      skipBuild = true;
+    }
+  }
+  if (changedFiles && changedFiles.every(filename => isTestFile(filename) || isDocumentationFile(filename))) {
+    console.log(" - Yes, because all changed files are tests or documentation");
+    skipBuild = true;
+  }
+
+  console.log("Checking if build is a named release...");
+  let buildRelease;
+  {
+    const message = getCommitMessage();
+    const match = /\[(release|release build|build release)\]/i.exec(message);
+    if (match) {
+      const [, reason] = match;
+      console.log(" - Yes, because commit message contains:", reason);
+      buildRelease = true;
+    }
+  }
+
+  console.log("Generating pipeline...");
+  const pipeline = getPipeline(lastBuild && skipBuild ? lastBuild.id : undefined);
+  const content = toYaml(pipeline);
+  const contentPath = join(process.cwd(), ".buildkite", "ci.yml");
+  writeFileSync(contentPath, content);
+
+  console.log("Generated pipeline:");
+  console.log(" - Path:", contentPath);
+  console.log(" - Size:", (content.length / 1024).toFixed(), "KB");
+
+  if (isBuildkite) {
+    console.log("Setting canary revision...");
+    const canaryRevision = buildRelease ? 0 : await getCanaryRevision();
+    await spawnSafe(["buildkite-agent", "meta-data", "set", "canary", `${canaryRevision}`]);
+
+    console.log("Uploading pipeline...");
+    await spawnSafe(["buildkite-agent", "pipeline", "upload", contentPath]);
+  }
+}
+
+await main();

.buildkite/ci.yml

@@ -1,790 +0,0 @@
-# Build and test Bun on macOS, Linux, and Windows.
-# https://buildkite.com/docs/pipelines/defining-steps
-#
-# If a step has the `robobun: true` label, robobun will listen
-# to webhooks from Buildkite and provision a VM to run the step.
-#
-# Changes to this file will be automatically uploaded on the next run
-# for a particular commit.
-
-steps:
-  # macOS aarch64
-  - key: "darwin-aarch64"
-    group: ":darwin: aarch64"
-    steps:
-      - key: "darwin-aarch64-build-deps"
-        label: "build-deps"
-        agents:
-          queue: "build-darwin"
-          os: "darwin"
-          arch: "aarch64"
-        command:
-          - "bun run build:ci --target dependencies"
-
-      - key: "darwin-aarch64-build-cpp"
-        label: "build-cpp"
-        agents:
-          queue: "build-darwin"
-          os: "darwin"
-          arch: "aarch64"
-        env:
-          BUN_CPP_ONLY: "ON"
-        command:
-          - "bun run build:ci --target bun"
-
-      - key: "darwin-aarch64-build-zig"
-        label: "build-zig"
-        agents:
-          queue: "build-zig"
-        command:
-          - "bun run build:ci --target bun-zig --toolchain darwin-aarch64"
-
-      - key: "darwin-aarch64-build-bun"
-        label: "build-bun"
-        agents:
-          queue: "build-darwin"
-          os: "darwin"
-          arch: "aarch64"
-        depends_on:
-          - "darwin-aarch64-build-deps"
-          - "darwin-aarch64-build-cpp"
-          - "darwin-aarch64-build-zig"
-        env:
-          BUN_LINK_ONLY: "ON"
-        command:
-          - "bun run build:ci --target bun"
-
-      - key: "darwin-aarch64-test-macos-14"
-        label: ":darwin: 14 aarch64 - test-bun"
-        if: "build.branch != 'main'"
-        parallelism: 3
-        soft_fail:
-          - exit_status: 2
-        retry:
-          automatic:
-            - exit_status: 1
-              limit: 1
-            - exit_status: -1
-              limit: 3
-            - exit_status: 255
-              limit: 3
-            - signal_reason: agent_stop
-              limit: 3
-            - signal: SIGTERM
-              limit: 3
-        depends_on:
-          - "darwin-aarch64-build-bun"
-        agents:
-          queue: "test-darwin"
-          os: "darwin"
-          arch: "aarch64"
-          release: "14"
-        command:
-          - "./scripts/runner.node.mjs --step darwin-aarch64-build-bun"
-
-      - key: "darwin-aarch64-test-macos-13"
-        label: ":darwin: 13 aarch64 - test-bun"
-        if: "build.branch != 'main'"
-        parallelism: 3
-        soft_fail:
-          - exit_status: 2
-        retry:
-          automatic:
-            - exit_status: 1
-              limit: 1
-            - exit_status: -1
-              limit: 3
-            - exit_status: 255
-              limit: 3
-            - signal_reason: agent_stop
-              limit: 3
-            - signal: SIGTERM
-              limit: 3
-        depends_on:
-          - "darwin-aarch64-build-bun"
-        agents:
-          queue: "test-darwin"
-          os: "darwin"
-          arch: "aarch64"
-          release: "13"
-        command:
-          - "./scripts/runner.node.mjs --step darwin-aarch64-build-bun"
-
-  # macOS x64
-  - key: "darwin-x64"
-    group: ":darwin: x64"
-    steps:
-      - key: "darwin-x64-build-deps"
-        label: "build-deps"
-        agents:
-          queue: "build-darwin"
-          os: "darwin"
-          arch: "x64"
-        command:
-          - "bun run build:ci --target dependencies"
-
-      - key: "darwin-x64-build-cpp"
-        label: "build-cpp"
-        agents:
-          queue: "build-darwin"
-          os: "darwin"
-          arch: "x64"
-        env:
-          BUN_CPP_ONLY: "ON"
-        command:
-          - "bun run build:ci --target bun"
-
-      - key: "darwin-x64-build-zig"
-        label: "build-zig"
-        agents:
-          queue: "build-zig"
-        command:
-          - "bun run build:ci --target bun-zig --toolchain darwin-x64"
-
-      - key: "darwin-x64-build-bun"
-        label: "build-bun"
-        agents:
-          queue: "build-darwin"
-          os: "darwin"
-          arch: "x64"
-        depends_on:
-          - "darwin-x64-build-deps"
-          - "darwin-x64-build-cpp"
-          - "darwin-x64-build-zig"
-        env:
-          BUN_LINK_ONLY: "ON"
-        command:
-          - "bun run build:ci --target bun"
-
-      - key: "darwin-x64-test-macos-14"
-        label: ":darwin: 14 x64 - test-bun"
-        if: "build.branch != 'main'"
-        parallelism: 3
-        soft_fail:
-          - exit_status: 2
-        retry:
-          automatic:
-            - exit_status: 1
-              limit: 1
-            - exit_status: -1
-              limit: 3
-            - exit_status: 255
-              limit: 3
-            - signal_reason: agent_stop
-              limit: 3
-            - signal: SIGTERM
-              limit: 3
-        depends_on:
-          - "darwin-x64-build-bun"
-        agents:
-          queue: "test-darwin"
-          os: "darwin"
-          arch: "x64"
-          release: "14"
-        command:
-          - "./scripts/runner.node.mjs --step darwin-x64-build-bun"
-
-      - key: "darwin-x64-test-macos-13"
-        label: ":darwin: 13 x64 - test-bun"
-        if: "build.branch != 'main'"
-        parallelism: 3
-        soft_fail:
-          - exit_status: 2
-        retry:
-          automatic:
-            - exit_status: 1
-              limit: 1
-            - exit_status: -1
-              limit: 3
-            - exit_status: 255
-              limit: 3
-            - signal_reason: agent_stop
-              limit: 3
-            - signal: SIGTERM
-              limit: 3
-        depends_on:
-          - "darwin-x64-build-bun"
-        agents:
-          queue: "test-darwin"
-          os: "darwin"
-          arch: "x64"
-          release: "13"
-        command:
-          - "./scripts/runner.node.mjs --step darwin-x64-build-bun"
-
-  # Linux x64
-  - key: "linux-x64"
-    group: ":linux: x64"
-    steps:
-      - key: "linux-x64-build-deps"
-        label: "build-deps"
-        agents:
-          queue: "build-linux"
-          os: "linux"
-          arch: "x64"
-        command:
-          - "bun run build:ci --target dependencies"
-
-      - key: "linux-x64-build-cpp"
-        label: "build-cpp"
-        agents:
-          queue: "build-linux"
-          os: "linux"
-          arch: "x64"
-        env:
-          BUN_CPP_ONLY: "ON"
-        command:
-          - "bun run build:ci --target bun"
-
-      - key: "linux-x64-build-zig"
-        label: "build-zig"
-        agents:
-          queue: "build-zig"
-        command:
-          - "bun run build:ci --target bun-zig --toolchain linux-x64"
-
-      - key: "linux-x64-build-bun"
-        label: "build-bun"
-        agents:
-          queue: "build-linux"
-          os: "linux"
-          arch: "x64"
-        depends_on:
-          - "linux-x64-build-deps"
-          - "linux-x64-build-cpp"
-          - "linux-x64-build-zig"
-        env:
-          BUN_LINK_ONLY: "ON"
-        command:
-          - "bun run build:ci --target bun"
-
-      - key: "linux-x64-test-debian-12"
-        label: ":debian: 12 x64 - test-bun"
-        if: "build.branch != 'main'"
-        parallelism: 10
-        soft_fail:
-          - exit_status: 2
-        retry:
-          automatic:
-            - exit_status: 1
-              limit: 1
-            - exit_status: -1
-              limit: 3
-            - exit_status: 255
-              limit: 3
-            - signal_reason: agent_stop
-              limit: 3
-            - signal: SIGTERM
-              limit: 3
-        depends_on:
-          - "linux-x64-build-bun"
-        agents:
-          robobun: "true"
-          os: "linux"
-          arch: "x64"
-          distro: "debian"
-          release: "12"
-        command:
-          - "./scripts/runner.node.mjs --step linux-x64-build-bun"
-
-      - key: "linux-x64-test-ubuntu-2204"
-        label: ":ubuntu: 22.04 x64 - test-bun"
-        if: "build.branch != 'main'"
-        parallelism: 10
-        soft_fail:
-          - exit_status: 2
-        retry:
-          automatic:
-            - exit_status: 1
-              limit: 1
-            - exit_status: -1
-              limit: 3
-            - exit_status: 255
-              limit: 3
-            - signal_reason: agent_stop
-              limit: 3
-            - signal: SIGTERM
-              limit: 3
-        depends_on:
-          - "linux-x64-build-bun"
-        agents:
-          robobun: "true"
-          os: "linux"
-          arch: "x64"
-          distro: "ubuntu"
-          release: "22.04"
-        command:
-          - "./scripts/runner.node.mjs --step linux-x64-build-bun"
-
-      - key: "linux-x64-test-ubuntu-2004"
-        label: ":ubuntu: 20.04 x64 - test-bun"
-        if: "build.branch != 'main'"
-        parallelism: 10
-        soft_fail:
-          - exit_status: 2
-        retry:
-          automatic:
-            - exit_status: 1
-              limit: 1
-            - exit_status: -1
-              limit: 3
-            - exit_status: 255
-              limit: 3
-            - signal_reason: agent_stop
-              limit: 3
-            - signal: SIGTERM
-              limit: 3
-        depends_on:
-          - "linux-x64-build-bun"
-        agents:
-          robobun: "true"
-          os: "linux"
-          arch: "x64"
-          distro: "ubuntu"
-          release: "20.04"
-        command:
-          - "./scripts/runner.node.mjs --step linux-x64-build-bun"
-
-  # Linux x64-baseline
-  - key: "linux-x64-baseline"
-    group: ":linux: x64-baseline"
-    steps:
-      - key: "linux-x64-baseline-build-deps"
-        label: "build-deps"
-        agents:
-          queue: "build-linux"
-          os: "linux"
-          arch: "x64"
-        env:
-          ENABLE_BASELINE: "ON"
-        command:
-          - "bun run build:ci --target dependencies"
-
-      - key: "linux-x64-baseline-build-cpp"
-        label: "build-cpp"
-        agents:
-          queue: "build-linux"
-          os: "linux"
-          arch: "x64"
-        env:
-          ENABLE_BASELINE: "ON"
-          BUN_CPP_ONLY: "ON"
-        command:
-          - "bun run build:ci --target bun"
-
-      - key: "linux-x64-baseline-build-zig"
-        label: "build-zig"
-        agents:
-          queue: "build-zig"
-        env:
-          ENABLE_BASELINE: "ON"
-        command:
-          - "bun run build:ci --target bun-zig --toolchain linux-x64-baseline"
-
-      - key: "linux-x64-baseline-build-bun"
-        label: "build-bun"
-        agents:
-          queue: "build-linux"
-          os: "linux"
-          arch: "x64"
-        depends_on:
-          - "linux-x64-baseline-build-deps"
-          - "linux-x64-baseline-build-cpp"
-          - "linux-x64-baseline-build-zig"
-        env:
-          ENABLE_BASELINE: "ON"
-          BUN_LINK_ONLY: "ON"
-        command:
-          - "bun run build:ci --target bun"
-
-      - key: "linux-x64-baseline-test-debian-12"
-        label: ":debian: 12 x64-baseline - test-bun"
-        if: "build.branch != 'main'"
-        parallelism: 10
-        soft_fail:
-          - exit_status: 2
-        retry:
-          automatic:
-            - exit_status: 1
-              limit: 1
-            - exit_status: -1
-              limit: 3
-            - exit_status: 255
-              limit: 3
-            - signal_reason: agent_stop
-              limit: 3
-            - signal: SIGTERM
-              limit: 3
-        depends_on:
-          - "linux-x64-baseline-build-bun"
-        agents:
-          robobun: "true"
-          os: "linux"
-          arch: "x64"
-          distro: "debian"
-          release: "12"
-        command:
-          - "./scripts/runner.node.mjs --step linux-x64-baseline-build-bun"
-
-      - key: "linux-x64-baseline-test-ubuntu-2204"
-        label: ":ubuntu: 22.04 x64-baseline - test-bun"
-        if: "build.branch != 'main'"
-        parallelism: 10
-        soft_fail:
-          - exit_status: 2
-        retry:
-          automatic:
-            - exit_status: 1
-              limit: 1
-            - exit_status: -1
-              limit: 3
-            - exit_status: 255
-              limit: 3
-            - signal_reason: agent_stop
-              limit: 3
-            - signal: SIGTERM
-              limit: 3
-        depends_on:
-          - "linux-x64-baseline-build-bun"
-        agents:
-          robobun: "true"
-          os: "linux"
-          arch: "x64"
-          distro: "ubuntu"
-          release: "22.04"
-        command:
-          - "./scripts/runner.node.mjs --step linux-x64-baseline-build-bun"
-
-      - key: "linux-x64-baseline-test-ubuntu-2004"
-        label: ":ubuntu: 20.04 x64-baseline - test-bun"
-        if: "build.branch != 'main'"
-        parallelism: 10
-        soft_fail:
-          - exit_status: 2
-        retry:
-          automatic:
-            - exit_status: 1
-              limit: 1
-            - exit_status: -1
-              limit: 3
-            - exit_status: 255
-              limit: 3
-            - signal_reason: agent_stop
-              limit: 3
-            - signal: SIGTERM
-              limit: 3
-        depends_on:
-          - "linux-x64-baseline-build-bun"
-        agents:
-          robobun: "true"
-          os: "linux"
-          arch: "x64"
-          distro: "ubuntu"
-          release: "20.04"
-        command:
-          - "./scripts/runner.node.mjs --step linux-x64-baseline-build-bun"
-
-  # Linux aarch64
-  - key: "linux-aarch64"
-    group: ":linux: aarch64"
-    steps:
-      - key: "linux-aarch64-build-deps"
-        label: "build-deps"
-        agents:
-          queue: "build-linux"
-          os: "linux"
-          arch: "aarch64"
-        command:
-          - "bun run build:ci --target dependencies"
-
-      - key: "linux-aarch64-build-cpp"
-        label: "build-cpp"
-        agents:
-          queue: "build-linux"
-          os: "linux"
-          arch: "aarch64"
-        env:
-          BUN_CPP_ONLY: "ON"
-        command:
-          - "bun run build:ci --target bun"
-
-      - key: "linux-aarch64-build-zig"
-        label: "build-zig"
-        agents:
-          queue: "build-zig"
-        command:
-          - "bun run build:ci --target bun-zig --toolchain linux-aarch64"
-
-      - key: "linux-aarch64-build-bun"
-        label: "build-bun"
-        agents:
-          queue: "build-linux"
-          os: "linux"
-          arch: "aarch64"
-        depends_on:
-          - "linux-aarch64-build-deps"
-          - "linux-aarch64-build-cpp"
-          - "linux-aarch64-build-zig"
-        env:
-          BUN_LINK_ONLY: "ON"
-        command:
-          - "bun run build:ci --target bun"
-
-      - key: "linux-aarch64-test-debian-12"
-        label: ":debian: 12 aarch64 - test-bun"
-        if: "build.branch != 'main'"
-        parallelism: 10
-        soft_fail:
-          - exit_status: 2
-        retry:
-          automatic:
-            - exit_status: 1
-              limit: 1
-            - exit_status: -1
-              limit: 3
-            - exit_status: 255
-              limit: 3
-            - signal_reason: agent_stop
-              limit: 3
-            - signal: SIGTERM
-              limit: 3
-        depends_on:
-          - "linux-aarch64-build-bun"
-        agents:
-          robobun: "true"
-          os: "linux"
-          arch: "aarch64"
-          distro: "debian"
-          release: "12"
-        command:
-          - "./scripts/runner.node.mjs --step linux-aarch64-build-bun"
-
-      - key: "linux-aarch64-test-ubuntu-2204"
-        label: ":ubuntu: 22.04 aarch64 - test-bun"
-        if: "build.branch != 'main'"
-        parallelism: 10
-        soft_fail:
-          - exit_status: 2
-        retry:
-          automatic:
-            - exit_status: 1
-              limit: 1
-            - exit_status: -1
-              limit: 3
-            - exit_status: 255
-              limit: 3
-            - signal_reason: agent_stop
-              limit: 3
-            - signal: SIGTERM
-              limit: 3
-        depends_on:
-          - "linux-aarch64-build-bun"
-        agents:
-          robobun: "true"
-          os: "linux"
-          arch: "aarch64"
-          distro: "ubuntu"
-          release: "22.04"
-        command:
-          - "./scripts/runner.node.mjs --step linux-aarch64-build-bun"
-
-      - key: "linux-aarch64-test-ubuntu-2004"
-        label: ":ubuntu: 20.04 aarch64 - test-bun"
-        if: "build.branch != 'main'"
-        parallelism: 10
-        soft_fail:
-          - exit_status: 2
-        retry:
-          automatic:
-            - exit_status: 1
-              limit: 1
-            - exit_status: -1
-              limit: 3
-            - exit_status: 255
-              limit: 3
-            - signal_reason: agent_stop
-              limit: 3
-            - signal: SIGTERM
-              limit: 3
-        depends_on:
-          - "linux-aarch64-build-bun"
-        agents:
-          robobun: "true"
-          os: "linux"
-          arch: "aarch64"
-          distro: "ubuntu"
-          release: "20.04"
-        command:
-          - "./scripts/runner.node.mjs --step linux-aarch64-build-bun"
-
-  # Windows x64
-  - key: "windows-x64"
-    group: ":windows: x64"
-    steps:
-      - key: "windows-x64-build-deps"
-        label: "build-deps"
-        agents:
-          queue: "build-windows"
-          os: "windows"
-          arch: "x64"
-        retry:
-          automatic:
-            - exit_status: 255
-              limit: 5
-        command:
-          - "bun run build:ci --target dependencies"
-
-      - key: "windows-x64-build-cpp"
-        label: "build-cpp"
-        agents:
-          queue: "build-windows"
-          os: "windows"
-          arch: "x64"
-        retry:
-          automatic:
-            - exit_status: 255
-              limit: 5
-        env:
-          BUN_CPP_ONLY: "ON"
-        command:
-          - "bun run build:ci --target bun"
-
-      - key: "windows-x64-build-zig"
-        label: "build-zig"
-        agents:
-          queue: "build-zig"
-        command:
-          - "bun run build:ci --target bun-zig --toolchain windows-x64"
-
-      - key: "windows-x64-build-bun"
-        label: "build-bun"
-        agents:
-          queue: "build-windows"
-          os: "windows"
-          arch: "x64"
-        depends_on:
-          - "windows-x64-build-deps"
-          - "windows-x64-build-cpp"
-          - "windows-x64-build-zig"
-        retry:
-          automatic:
-            - exit_status: 255
-              limit: 5
-        env:
-          BUN_LINK_ONLY: "ON"
-        command:
-          - "bun run build:ci --target bun"
-
-      - key: "windows-x64-test-bun"
-        label: ":windows: x64 - test-bun"
-        if: "build.branch != 'main'"
-        parallelism: 10
-        soft_fail:
-          - exit_status: 1
-        retry:
-          automatic:
-            - exit_status: -1
-              limit: 3
-            - exit_status: 255
-              limit: 3
-            - signal_reason: agent_stop
-              limit: 3
-            - signal: SIGTERM
-              limit: 3
-        depends_on:
-          - "windows-x64-build-bun"
-        agents:
-          robobun: "true"
-          os: "windows"
-          arch: "x64"
-        command:
-          - "node .\\scripts\\runner.node.mjs --step windows-x64-build-bun"
-
-  # Windows x64-baseline
-  - key: "windows-x64-baseline"
-    group: ":windows: x64-baseline"
-    steps:
-      - key: "windows-x64-baseline-build-deps"
-        label: "build-deps"
-        agents:
-          queue: "build-windows"
-          os: "windows"
-          arch: "x64"
-        retry:
-          automatic:
-            - exit_status: 255
-              limit: 5
-        env:
-          ENABLE_BASELINE: "ON"
-        command:
-          - "bun run build:ci --target dependencies"
-
-      - key: "windows-x64-baseline-build-cpp"
-        label: "build-cpp"
-        agents:
-          queue: "build-windows"
-          os: "windows"
-          arch: "x64"
-        retry:
-          automatic:
-            - exit_status: 255
-              limit: 5
-        env:
-          ENABLE_BASELINE: "ON"
-          BUN_CPP_ONLY: "ON"
-        command:
-          - "bun run build:ci --target bun"
-
-      - key: "windows-x64-baseline-build-zig"
-        label: "build-zig"
-        agents:
-          queue: "build-zig"
-        env:
-          ENABLE_BASELINE: "ON"
-        command:
-          - "bun run build:ci --target bun-zig --toolchain windows-x64-baseline"
-
-      - key: "windows-x64-baseline-build-bun"
-        label: "build-bun"
-        agents:
-          queue: "build-windows"
-          os: "windows"
-          arch: "x64"
-        depends_on:
-          - "windows-x64-baseline-build-deps"
-          - "windows-x64-baseline-build-cpp"
-          - "windows-x64-baseline-build-zig"
-        retry:
-          automatic:
-            - exit_status: 255
-              limit: 5
-        env:
-          ENABLE_BASELINE: "ON"
-          BUN_LINK_ONLY: "ON"
-        command:
-          - "bun run build:ci --target bun"
-
-      - key: "windows-x64-baseline-test-bun"
-        label: ":windows: x64-baseline - test-bun"
-        if: "build.branch != 'main'"
-        parallelism: 10
-        soft_fail:
-          - exit_status: 1
-        retry:
-          automatic:
-            - exit_status: -1
-              limit: 3
-            - exit_status: 255
-              limit: 3
-            - signal_reason: agent_stop
-              limit: 3
-            - signal: SIGTERM
-              limit: 3
-        depends_on:
-          - "windows-x64-baseline-build-bun"
-        agents:
-          robobun: "true"
-          os: "windows"
-          arch: "x64"
-        command:
-          - "node .\\scripts\\runner.node.mjs --step windows-x64-baseline-build-bun"

.buildkite/scripts/prepare-build.sh

@@ -2,96 +2,10 @@
 
 set -eo pipefail
 
-function assert_build() {
-  if [ -z "$BUILDKITE_REPO" ]; then
-    echo "error: Cannot find repository for this build"
-    exit 1
-  fi
-  if [ -z "$BUILDKITE_COMMIT" ]; then
-    echo "error: Cannot find commit for this build"
-    exit 1
-  fi
-}
-
-function assert_buildkite_agent() {
-  if ! command -v buildkite-agent &> /dev/null; then
-    echo "error: Cannot find buildkite-agent, please install it:"
-    echo "https://buildkite.com/docs/agent/v3/install"
-    exit 1
-  fi
-}
-
-function assert_jq() {
-  assert_command "jq" "jq" "https://stedolan.github.io/jq/"
-}
-
-function assert_curl() {
-  assert_command "curl" "curl" "https://curl.se/download.html"
-}
-
-function assert_command() {
-  local command="$1"
-  local package="$2"
-  local help_url="$3"
-  if ! command -v "$command" &> /dev/null; then
-    echo "warning: $command is not installed, installing..."
-    if command -v brew &> /dev/null; then
-      HOMEBREW_NO_AUTO_UPDATE=1 brew install "$package"
-    else
-      echo "error: Cannot install $command, please install it"
-      if [ -n "$help_url" ]; then
-        echo ""
-        echo "hint: See $help_url for help"
-      fi
-      exit 1
-    fi
-  fi
-}
-
-function assert_release() {
-  if [ "$RELEASE" == "1" ]; then
-    run_command buildkite-agent meta-data set canary "0"
-  fi
-}
-
-function assert_canary() {
-  local canary="$(buildkite-agent meta-data get canary 2>/dev/null)"
-  if [ -z "$canary" ]; then
-    local repo=$(echo "$BUILDKITE_REPO" | sed -E 's#https://github.com/([^/]+)/([^/]+).git#\1/\2#g')
-    local tag="$(curl -sL "https://api.github.com/repos/$repo/releases/latest" | jq -r ".tag_name")"
-    if [ "$tag" == "null" ]; then
-      canary="1"
-    else
-      local revision=$(curl -sL "https://api.github.com/repos/$repo/compare/$tag...$BUILDKITE_COMMIT" | jq -r ".ahead_by")
-      if [ "$revision" == "null" ]; then
-        canary="1"
-      else
-        canary="$revision"
-      fi
-    fi
-    run_command buildkite-agent meta-data set canary "$canary"
-  fi
-}
-
-function upload_buildkite_pipeline() {
-  local path="$1"
-  if [ ! -f "$path" ]; then
-    echo "error: Cannot find pipeline: $path"
-    exit 1
-  fi
-  run_command buildkite-agent pipeline upload "$path"
-}
-
 function run_command() {
   set -x
   "$@"
   { set +x; } 2>/dev/null
 }
 
-assert_build
-assert_buildkite_agent
-assert_jq
-assert_curl
-assert_release
-assert_canary
-upload_buildkite_pipeline ".buildkite/ci.yml"
+run_command node ".buildkite/ci.mjs"

.buildkite/scripts/upload-release.sh

@@ -162,6 +162,27 @@ function upload_s3_file() {
   run_command aws --endpoint-url="$AWS_ENDPOINT" s3 cp "$file" "s3://$AWS_BUCKET/$folder/$file"
 }
 
+function send_bench_webhook() {
+  if [ -z "$BENCHMARK_URL" ]; then
+    echo "error: \$BENCHMARK_URL is not set"
+    # exit 1 # TODO: this isn't live yet
+    return
+  fi
+
+  local tag="$1"
+  local commit="$BUILDKITE_COMMIT"
+  local artifact_path="${commit}"
+
+  if [ "$tag" == "canary" ]; then
+    artifact_path="${commit}-canary"
+  fi
+
+  local artifact_url="https://pub-5e11e972747a44bf9aaf9394f185a982.r2.dev/releases/$artifact_path/bun-linux-x64.zip"
+  local webhook_url="$BENCHMARK_URL?tag=$tag&commit=$commit&artifact_url=$artifact_url"
+  
+  curl -X POST "$webhook_url"
+}
+
 function create_release() {
   assert_main
   assert_buildkite_agent
@@ -206,6 +227,7 @@ function create_release() {
 
   update_github_release "$tag"
   create_sentry_release "$tag"
+  send_bench_webhook "$tag"
 }
 
 function assert_canary() {

.dockerignore

@@ -11,5 +11,8 @@ packages/**/bun-profile
 src/bun.js/WebKit
 src/bun.js/WebKit/LayoutTests
 zig-build
-zig-cache
-zig-out
+.zig-cache
+zig-out
+build
+vendor
+node_modules

.gitattributes

@@ -49,3 +49,5 @@ vendor/brotli/** linguist-vendored
 
 test/js/node/test/fixtures linguist-vendored
 test/js/node/test/common linguist-vendored
+
+test/js/bun/css/files linguist-vendored

.github/workflows/labeled.yml

@@ -83,6 +83,26 @@ jobs:
           echo "latest=$(cat LATEST)" >> $GITHUB_OUTPUT
 
           rm -rf is-outdated.txt outdated.txt latest.txt
+      - name: Generate comment text with Sentry Link
+        if: github.event.label.name == 'crash'
+        # ignore if fail
+        continue-on-error: true
+        id: generate-comment-text
+        env:
+          GITHUB_ISSUE_BODY: ${{ github.event.issue.body }}
+          SENTRY_AUTH_TOKEN: ${{ secrets.SENTRY_EVENTS_SECRET }}
+        shell: bash
+        run: |
+          bun scripts/associate-issue-with-sentry.ts
+
+          if [[ -f "sentry-link.txt" ]]; then
+            echo "sentry-link=$(cat sentry-link.txt)" >> $GITHUB_OUTPUT
+          fi
+
+          if [[ -f "sentry-id.txt" ]]; then
+            echo "sentry-id=$(cat sentry-id.txt)" >> $GITHUB_OUTPUT
+          fi
+
       - name: Add labels
         uses: actions-cool/issues-helper@v3
         if: github.event.label.name == 'crash'
@@ -92,7 +112,7 @@ jobs:
           issue-number: ${{ github.event.issue.number }}
           labels: ${{ steps.add-labels.outputs.labels }}
       - name: Comment outdated
-        if: steps.add-labels.outputs.is-outdated == 'true' && github.event.label.name == 'crash'
+        if: steps.add-labels.outputs.is-outdated == 'true' && github.event.label.name == 'crash' && steps.generate-comment-text.outputs.sentry-link == ''
         uses: actions-cool/issues-helper@v3
         with:
           actions: "create-comment"
@@ -106,6 +126,40 @@ jobs:
             ```sh
             bun upgrade
             ```
+      - name: Comment with Sentry Link and outdated version
+        if: steps.generate-comment-text.outputs.sentry-link != '' && github.event.label.name == 'crash' && steps.add-labels.outputs.is-outdated == 'true'
+        uses: actions-cool/issues-helper@v3
+        with:
+          actions: "create-comment"
+          token: ${{ secrets.GITHUB_TOKEN }}
+          issue-number: ${{ github.event.issue.number }}
+          body: |
+            @${{ github.event.issue.user.login }}, thank you for reporting this crash. The latest version of Bun is v${{ steps.add-labels.outputs.latest }}, but this crash was reported on Bun v${{ steps.add-labels.outputs.oudated }}.
+
+            Are you able to reproduce this crash on the latest version of Bun?
+
+            ```sh
+            bun upgrade
+            ```
+
+            For Bun's internal tracking, this issue is [${{ steps.generate-comment-text.outputs.sentry-id }}](${{ steps.generate-comment-text.outputs.sentry-link }}).
+
+            <!-- sentry-id: ${{ steps.generate-comment-text.outputs.sentry-id }} -->
+            <!-- sentry-link: ${{ steps.generate-comment-text.outputs.sentry-link }} -->
+      - name: Comment with Sentry Link
+        if: steps.generate-comment-text.outputs.sentry-link != '' && github.event.label.name == 'crash' && steps.add-labels.outputs.is-outdated != 'true'
+        uses: actions-cool/issues-helper@v3
+        with:
+          actions: "create-comment"
+          token: ${{ secrets.GITHUB_TOKEN }}
+          issue-number: ${{ github.event.issue.number }}
+          body: |
+            Thank you for reporting this crash. 
+
+            For Bun's internal tracking, this issue is [${{ steps.generate-comment-text.outputs.sentry-id }}](${{ steps.generate-comment-text.outputs.sentry-link }}).
+
+            <!-- sentry-id: ${{ steps.generate-comment-text.outputs.sentry-id }} -->
+            <!-- sentry-link: ${{ steps.generate-comment-text.outputs.sentry-link }} -->
       - name: Comment needs repro
         if: github.event.label.name == 'needs repro'
         uses: actions-cool/issues-helper@v3

.gitignore

@@ -141,6 +141,7 @@ test/node.js/upstream
 .zig-cache
 scripts/env.local
 *.generated.ts
+src/bake/generated.ts
 
 # Dependencies
 /vendor
@@ -163,3 +164,7 @@ scripts/env.local
 /src/deps/zstd
 /src/deps/zlib
 /src/deps/zig
+
+# Generated files
+
+.buildkite/ci.yml

.vscode/launch.json

@@ -22,6 +22,8 @@
         "BUN_GARBAGE_COLLECTOR_LEVEL": "1",
       },
       "console": "internalConsole",
+      // Don't pause when the GC runs while the debugger is open.
+      "postRunCommands": ["process handle -p true -s false -n false SIGUSR1"],
     },
     {
       "type": "lldb",
@@ -37,6 +39,8 @@
         "BUN_DEBUG_jest": "1",
       },
       "console": "internalConsole",
+      // Don't pause when the GC runs while the debugger is open.
+      "postRunCommands": ["process handle -p true -s false -n false SIGUSR1"],
     },
     {
       "type": "lldb",
@@ -58,6 +62,8 @@
         "BUN_GARBAGE_COLLECTOR_LEVEL": "0",
       },
       "console": "internalConsole",
+      // Don't pause when the GC runs while the debugger is open.
+      "postRunCommands": ["process handle -p true -s false -n false SIGUSR1"],
     },
     {
       "type": "lldb",
@@ -73,6 +79,8 @@
         "BUN_GARBAGE_COLLECTOR_LEVEL": "2",
       },
       "console": "internalConsole",
+      // Don't pause when the GC runs while the debugger is open.
+      "postRunCommands": ["process handle -p true -s false -n false SIGUSR1"],
     },
     {
       "type": "lldb",
@@ -88,6 +96,8 @@
         "BUN_GARBAGE_COLLECTOR_LEVEL": "2",
       },
       "console": "internalConsole",
+      // Don't pause when the GC runs while the debugger is open.
+      "postRunCommands": ["process handle -p true -s false -n false SIGUSR1"],
     },
     {
       "type": "lldb",
@@ -103,6 +113,8 @@
         "BUN_GARBAGE_COLLECTOR_LEVEL": "2",
       },
       "console": "internalConsole",
+      // Don't pause when the GC runs while the debugger is open.
+      "postRunCommands": ["process handle -p true -s false -n false SIGUSR1"],
     },
     {
       "type": "lldb",
@@ -119,6 +131,8 @@
         "BUN_INSPECT": "ws://localhost:0/?wait=1",
       },
       "console": "internalConsole",
+      // Don't pause when the GC runs while the debugger is open.
+      "postRunCommands": ["process handle -p true -s false -n false SIGUSR1"],
       "serverReadyAction": {
         "pattern": "https://debug.bun.sh/#localhost:([0-9]+)/",
         "uriFormat": "https://debug.bun.sh/#ws://localhost:%s/",
@@ -140,6 +154,8 @@
         "BUN_INSPECT": "ws://localhost:0/?break=1",
       },
       "console": "internalConsole",
+      // Don't pause when the GC runs while the debugger is open.
+      "postRunCommands": ["process handle -p true -s false -n false SIGUSR1"],
       "serverReadyAction": {
         "pattern": "https://debug.bun.sh/#localhost:([0-9]+)/",
         "uriFormat": "https://debug.bun.sh/#ws://localhost:%s/",
@@ -160,6 +176,8 @@
         "BUN_GARBAGE_COLLECTOR_LEVEL": "2",
       },
       "console": "internalConsole",
+      // Don't pause when the GC runs while the debugger is open.
+      "postRunCommands": ["process handle -p true -s false -n false SIGUSR1"],
     },
     {
       "type": "lldb",
@@ -178,6 +196,8 @@
         "GOMAXPROCS": "1",
       },
       "console": "internalConsole",
+      // Don't pause when the GC runs while the debugger is open.
+      "postRunCommands": ["process handle -p true -s false -n false SIGUSR1"],
     },
     {
       "type": "lldb",
@@ -192,6 +212,8 @@
         "BUN_GARBAGE_COLLECTOR_LEVEL": "2",
       },
       "console": "internalConsole",
+      // Don't pause when the GC runs while the debugger is open.
+      "postRunCommands": ["process handle -p true -s false -n false SIGUSR1"],
     },
     {
       "type": "lldb",
@@ -206,6 +228,8 @@
         "BUN_GARBAGE_COLLECTOR_LEVEL": "2",
       },
       "console": "internalConsole",
+      // Don't pause when the GC runs while the debugger is open.
+      "postRunCommands": ["process handle -p true -s false -n false SIGUSR1"],
     },
     {
       "type": "lldb",
@@ -220,6 +244,8 @@
         "BUN_GARBAGE_COLLECTOR_LEVEL": "2",
       },
       "console": "internalConsole",
+      // Don't pause when the GC runs while the debugger is open.
+      "postRunCommands": ["process handle -p true -s false -n false SIGUSR1"],
     },
     {
       "type": "lldb",
@@ -235,6 +261,8 @@
         "BUN_INSPECT": "ws://localhost:0/?wait=1",
       },
       "console": "internalConsole",
+      // Don't pause when the GC runs while the debugger is open.
+      "postRunCommands": ["process handle -p true -s false -n false SIGUSR1"],
       "serverReadyAction": {
         "pattern": "https://debug.bun.sh/#localhost:([0-9]+)/",
         "uriFormat": "https://debug.bun.sh/#ws://localhost:%s/",
@@ -255,6 +283,8 @@
         "BUN_INSPECT": "ws://localhost:0/?break=1",
       },
       "console": "internalConsole",
+      // Don't pause when the GC runs while the debugger is open.
+      "postRunCommands": ["process handle -p true -s false -n false SIGUSR1"],
       "serverReadyAction": {
         "pattern": "https://debug.bun.sh/#localhost:([0-9]+)/",
         "uriFormat": "https://debug.bun.sh/#ws://localhost:%s/",
@@ -276,6 +306,8 @@
         "BUN_GARBAGE_COLLECTOR_LEVEL": "2",
       },
       "console": "internalConsole",
+      // Don't pause when the GC runs while the debugger is open.
+      "postRunCommands": ["process handle -p true -s false -n false SIGUSR1"],
     },
     {
       "type": "lldb",
@@ -291,6 +323,8 @@
         "BUN_GARBAGE_COLLECTOR_LEVEL": "0",
       },
       "console": "internalConsole",
+      // Don't pause when the GC runs while the debugger is open.
+      "postRunCommands": ["process handle -p true -s false -n false SIGUSR1"],
     },
     {
       "type": "lldb",
@@ -306,6 +340,8 @@
         "BUN_GARBAGE_COLLECTOR_LEVEL": "2",
       },
       "console": "internalConsole",
+      // Don't pause when the GC runs while the debugger is open.
+      "postRunCommands": ["process handle -p true -s false -n false SIGUSR1"],
     },
     {
       "type": "lldb",
@@ -321,6 +357,8 @@
         "BUN_GARBAGE_COLLECTOR_LEVEL": "2",
       },
       "console": "internalConsole",
+      // Don't pause when the GC runs while the debugger is open.
+      "postRunCommands": ["process handle -p true -s false -n false SIGUSR1"],
     },
     {
       "type": "lldb",
@@ -336,6 +374,8 @@
         "BUN_GARBAGE_COLLECTOR_LEVEL": "2",
       },
       "console": "internalConsole",
+      // Don't pause when the GC runs while the debugger is open.
+      "postRunCommands": ["process handle -p true -s false -n false SIGUSR1"],
     },
     {
       "type": "lldb",
@@ -352,6 +392,8 @@
         "BUN_INSPECT": "ws://localhost:0/?wait=1",
       },
       "console": "internalConsole",
+      // Don't pause when the GC runs while the debugger is open.
+      "postRunCommands": ["process handle -p true -s false -n false SIGUSR1"],
       "serverReadyAction": {
         "pattern": "https://debug.bun.sh/#localhost:([0-9]+)/",
         "uriFormat": "https://debug.bun.sh/#ws://localhost:%s/",
@@ -373,6 +415,8 @@
         "BUN_INSPECT": "ws://localhost:0/?break=1",
       },
       "console": "internalConsole",
+      // Don't pause when the GC runs while the debugger is open.
+      "postRunCommands": ["process handle -p true -s false -n false SIGUSR1"],
       "serverReadyAction": {
         "pattern": "https://debug.bun.sh/#localhost:([0-9]+)/",
         "uriFormat": "https://debug.bun.sh/#ws://localhost:%s/",
@@ -393,6 +437,8 @@
         "BUN_GARBAGE_COLLECTOR_LEVEL": "2",
       },
       "console": "internalConsole",
+      // Don't pause when the GC runs while the debugger is open.
+      "postRunCommands": ["process handle -p true -s false -n false SIGUSR1"],
     },
     // bun test [*]
     {
@@ -408,6 +454,8 @@
         "BUN_GARBAGE_COLLECTOR_LEVEL": "2",
       },
       "console": "internalConsole",
+      // Don't pause when the GC runs while the debugger is open.
+      "postRunCommands": ["process handle -p true -s false -n false SIGUSR1"],
     },
     {
       "type": "lldb",
@@ -422,6 +470,8 @@
         "BUN_GARBAGE_COLLECTOR_LEVEL": "0",
       },
       "console": "internalConsole",
+      // Don't pause when the GC runs while the debugger is open.
+      "postRunCommands": ["process handle -p true -s false -n false SIGUSR1"],
     },
     {
       "type": "lldb",
@@ -437,6 +487,8 @@
         "BUN_INSPECT": "ws://localhost:0/",
       },
       "console": "internalConsole",
+      // Don't pause when the GC runs while the debugger is open.
+      "postRunCommands": ["process handle -p true -s false -n false SIGUSR1"],
       "serverReadyAction": {
         "pattern": "https://debug.bun.sh/#localhost:([0-9]+)/",
         "uriFormat": "https://debug.bun.sh/#ws://localhost:%s/",
@@ -456,6 +508,8 @@
         "BUN_GARBAGE_COLLECTOR_LEVEL": "2",
       },
       "console": "internalConsole",
+      // Don't pause when the GC runs while the debugger is open.
+      "postRunCommands": ["process handle -p true -s false -n false SIGUSR1"],
     },
     {
       "type": "lldb",
@@ -470,6 +524,8 @@
         "BUN_GARBAGE_COLLECTOR_LEVEL": "2",
       },
       "console": "internalConsole",
+      // Don't pause when the GC runs while the debugger is open.
+      "postRunCommands": ["process handle -p true -s false -n false SIGUSR1"],
     },
     // Windows: bun test [file]
     {
@@ -1182,6 +1238,8 @@
         },
       ],
       "console": "internalConsole",
+      // Don't pause when the GC runs while the debugger is open.
+      "postRunCommands": ["process handle -p true -s false -n false SIGUSR1"],
     },
   ],
   "inputs": [

CONTRIBUTING.md

@@ -30,7 +30,7 @@ $ sudo dnf install cargo ccache cmake git golang libtool ninja-build pkg-config
 ```
 
 ```bash#openSUSE Tumbleweed
-$ sudo zypper install go cmake ninja automake git rustup && rustup toolchain install stable
+$ sudo zypper install go cmake ninja automake git icu rustup && rustup toolchain install stable
 ```
 
 {% /codetabs %}
@@ -77,8 +77,8 @@ $ sudo pacman -S llvm clang lld
 
 ```bash#Fedora
 $ sudo dnf install 'dnf-command(copr)'
-$ sudo dnf copr enable -y @fedora-llvm-team/llvm-snapshots
-$ sudo dnf install llvm clang lld
+$ sudo dnf copr enable -y @fedora-llvm-team/llvm17
+$ sudo dnf install llvm16 clang16 lld16-devel
 ```
 
 ```bash#openSUSE Tumbleweed
@@ -285,17 +285,17 @@ If you see this error when compiling, run:
 $ xcode-select --install
 ```
 
-## Cannot find `libatomic.a`
+### Cannot find `libatomic.a`
 
 Bun defaults to linking `libatomic` statically, as not all systems have it. If you are building on a distro that does not have a static libatomic available, you can run the following command to enable dynamic linking:
 
 ```bash
-$ bun setup -DUSE_STATIC_LIBATOMIC=OFF
+$ bun run build -DUSE_STATIC_LIBATOMIC=OFF
 ```
 
 The built version of Bun may not work on other systems if compiled this way.
 
-## ccache conflicts with building TinyCC on macOS
+### ccache conflicts with building TinyCC on macOS
 
 If you run into issues with `ccache` when building TinyCC, try reinstalling ccache
 
@@ -303,3 +303,9 @@ If you run into issues with `ccache` when building TinyCC, try reinstalling ccac
 brew uninstall ccache
 brew install ccache
 ```
+
+## Using bun-debug
+
+- Disable logging: `BUN_DEBUG_QUIET_LOGS=1 bun-debug ...` (to disable all debug logging)
+- Enable logging for a specific zig scope: `BUN_DEBUG_EventLoop=1 bun-debug ...` (to allow `std.log.scoped(.EventLoop)`)
+- Bun transpiles every file it runs, to see the actual executed source in a debug build find it in `/tmp/bun-debug-src/...path/to/file`, for example the transpiled version of `/home/bun/index.ts` would be in `/tmp/bun-debug-src/home/bun/index.ts`

LATEST

@@ -1 +1 @@
-1.1.31
+1.1.34

README.md

@@ -1,5 +1,5 @@
 <p align="center">
-  <a href="https://bun.sh"><img src="https://user-images.githubusercontent.com/709451/182802334-d9c42afe-f35d-4a7b-86ea-9985f73f20c3.png" alt="Logo" height=170></a>
+  <a href="https://bun.sh"><img src="https://github.com/user-attachments/assets/50282090-adfd-4ddb-9e27-c30753c6b161" alt="Logo" height=170></a>
 </p>
 <h1 align="center">Bun</h1>
 

bench/async/bun.js

@@ -1,4 +1,4 @@
-import { bench, run } from "mitata";
+import { bench, run } from "../runner.mjs";
 
 bench("sync", () => {});
 bench("async", async () => {});

bench/async/deno.js

@@ -1,4 +1,4 @@
-import { bench, run } from "../node_modules/mitata/src/cli.mjs";
+import { bench, run } from "../runner.mjs";
 
 bench("sync", () => {});
 bench("async", async () => {});

bench/async/node.mjs

@@ -1,4 +1,4 @@
-import { bench, run } from "mitata";
+import { bench, run } from "../runner.mjs";
 
 bench("sync", () => {});
 bench("async", async () => {});

bench/copyfile/node.mitata.mjs

@@ -1,5 +1,5 @@
-import { bench, run } from "mitata";
 import { copyFileSync, statSync, writeFileSync } from "node:fs";
+import { bench, run } from "../runner.mjs";
 
 function runner(ready) {
   for (let size of [1, 10, 100, 1000, 10000, 100000, 1000000, 10000000]) {

bench/crypto/asymmetricCipher.js

@@ -1,4 +1,4 @@
-import { bench, run } from "mitata";
+import { bench, run } from "../runner.mjs";
 const crypto = require("node:crypto");
 
 const keyPair = crypto.generateKeyPairSync("rsa", {

bench/crypto/asymmetricSign.js

@@ -1,4 +1,4 @@
-import { bench, run } from "mitata";
+import { bench, run } from "../runner.mjs";
 const crypto = require("node:crypto");
 
 const keyPair = crypto.generateKeyPairSync("rsa", {

bench/deepEqual/map.js

@@ -1,5 +1,5 @@
 import { expect } from "bun:test";
-import { bench, run } from "mitata";
+import { bench, run } from "../runner.mjs";
 
 const MAP_SIZE = 10_000;
 

bench/deepEqual/set.js

@@ -1,5 +1,5 @@
 import { expect } from "bun:test";
-import { bench, run } from "mitata";
+import { bench, run } from "../runner.mjs";
 
 const SET_SIZE = 10_000;
 

bench/emitter/implementations.mjs

@@ -1,5 +1,5 @@
-import { group } from "mitata";
 import EventEmitterNative from "node:events";
+import { group } from "../runner.mjs";
 
 export const implementations = [
   {

bench/emitter/microbench.mjs

@@ -1,4 +1,4 @@
-import { bench, run } from "mitata";
+import { bench, run } from "../runner.mjs";
 import { groupForEmitter } from "./implementations.mjs";
 
 var id = 0;

bench/emitter/microbench_once.mjs

@@ -1,4 +1,4 @@
-import { bench, run } from "mitata";
+import { bench, run } from "../runner.mjs";
 import { groupForEmitter } from "./implementations.mjs";
 
 var id = 0;

bench/emitter/realworld_stream.mjs

@@ -1,4 +1,4 @@
-import { bench, run } from "mitata";
+import { bench, run } from "../runner.mjs";
 import { groupForEmitter } from "./implementations.mjs";
 
 // Pseudo RNG is derived from https://stackoverflow.com/a/424445

bench/fetch/bun.js

@@ -1,4 +1,4 @@
-import { bench, run } from "mitata";
+import { bench, run } from "../runner.mjs";
 
 const count = 100;
 

bench/fetch/node.mjs

@@ -1,4 +1,4 @@
-import { bench, run } from "mitata";
+import { bench, run } from "../runner.mjs";
 
 const count = 100;
 

bench/ffi/bun.js

@@ -1,5 +1,5 @@
 import { CString, dlopen, ptr } from "bun:ffi";
-import { bench, group, run } from "mitata";
+import { bench, group, run } from "../runner.mjs";
 
 const { napiNoop, napiHash, napiString } = require(import.meta.dir + "/src/ffi_napi_bench.node");
 

bench/ffi/deno.js

@@ -1,4 +1,4 @@
-import { bench, group, run } from "../node_modules/mitata/src/cli.mjs";
+import { bench, group, run } from "../runner.mjs";
 
 const extension = "darwin" !== Deno.build.os ? "so" : "dylib";
 const path = new URL("src/target/release/libffi_napi_bench." + extension, import.meta.url).pathname;

bench/ffi/node.mjs

@@ -1,5 +1,5 @@
-import { bench, group, run } from "mitata";
 import { createRequire } from "node:module";
+import { bench, group, run } from "../runner.mjs";
 
 const require = createRequire(import.meta.url);
 const { napiNoop, napiHash, napiString } = require("./src/ffi_napi_bench.node");

bench/glob/braces.mjs

@@ -1,5 +1,5 @@
 import braces from "braces";
-import { bench, group, run } from "mitata";
+import { bench, group, run } from "../runner.mjs";
 
 // const iterations = 1000;
 const iterations = 100;
@@ -10,15 +10,16 @@ const veryComplexPattern = "{a,b,HI{c,e,LMAO{d,f}Q}}{1,2,{3,4},5}";
 
 console.log(braces(complexPattern, { expand: true }));
 function benchPattern(pattern, name) {
-  group({ name: `${name} pattern: "${pattern}"`, summary: true }, () => {
+  const _name = `${name} pattern: "${pattern}"`;
+  group({ name: _name, summary: true }, () => {
     if (typeof Bun !== "undefined")
-      bench("Bun", () => {
+      bench(`Bun (${_name})`, () => {
         for (let i = 0; i < iterations; i++) {
           Bun.$.braces(pattern);
         }
       });
 
-    bench("micromatch/braces", () => {
+    bench(`micromatch/braces ${_name}`, () => {
       for (let i = 0; i < iterations; i++) {
         braces(pattern, { expand: true });
       }

bench/glob/match.mjs

@@ -1,5 +1,5 @@
 import micromatch from "micromatch";
-import { bench, run } from "mitata";
+import { bench, run } from "../runner.mjs";
 
 const Glob = typeof Bun !== "undefined" ? Bun.Glob : undefined;
 const doMatch = typeof Bun === "undefined" ? micromatch.isMatch : (a, b) => new Glob(b).match(a);

bench/glob/scan.mjs

@@ -1,6 +1,6 @@
 import fg from "fast-glob";
 import { fdir } from "fdir";
-import { bench, group, run } from "mitata";
+import { bench, group, run } from "../runner.mjs";
 
 const normalPattern = "*.ts";
 const recursivePattern = "**/*.ts";

bench/gzip/bun.js

@@ -1,5 +1,5 @@
 import { gunzipSync, gzipSync } from "bun";
-import { bench, group, run } from "mitata";
+import { bench, group, run } from "../runner.mjs";
 
 const data = await Bun.file(require.resolve("@babel/standalone/babel.min.js")).arrayBuffer();
 

bench/gzip/deno.js

@@ -1,4 +1,4 @@
-import { bench, run } from "../node_modules/mitata/src/cli.mjs";
+import { bench, run } from "../runner.mjs";
 
 const data = new TextEncoder().encode("Hello World!".repeat(9999));
 

bench/gzip/node.mjs

@@ -1,7 +1,7 @@
 import { readFileSync } from "fs";
-import { bench, run } from "mitata";
 import { createRequire } from "module";
 import { gunzipSync, gzipSync } from "zlib";
+import { bench, run } from "../runner.mjs";
 
 const require = createRequire(import.meta.url);
 const data = readFileSync(require.resolve("@babel/standalone/babel.min.js"));

bench/log/bun.js

@@ -1,4 +1,4 @@
-import { bench, run } from "mitata";
+import { bench, run } from "../runner.mjs";
 
 bench("console.log('hello')", () => console.log("hello"));
 bench("console.log({ hello: 'object' })", () => console.log({ hello: "object" }));

bench/log/deno.mjs

@@ -1,4 +1,4 @@
-import { bench, run } from "../node_modules/mitata/src/cli.mjs";
+import { bench, run } from "../runner.mjs";
 
 bench("console.log", () => console.log("hello"));
 bench("console.log({ hello: 'object' })", () => console.log({ hello: "object" }));

bench/log/node.mjs

@@ -1,4 +1,4 @@
-import { bench, run } from "mitata";
+import { bench, run } from "../runner.mjs";
 
 bench("console.log", () => console.log("hello"));
 bench("console.log({ hello: 'object' })", () => console.log({ hello: "object" }));

bench/modules/node_os/bun.js

@@ -1,4 +1,4 @@
-import { bench, run } from "mitata";
+import { bench, run } from "../../runner.mjs";
 import {
   arch,
   cpus,

bench/modules/node_os/node.mjs

@@ -1,4 +1,3 @@
-import { bench, run } from "mitata";
 import {
   arch,
   cpus,
@@ -19,6 +18,7 @@ import {
   userInfo,
   version,
 } from "node:os";
+import { bench, run } from "../../runner.mjs";
 
 bench("cpus()", () => cpus());
 bench("networkInterfaces()", () => networkInterfaces());

bench/package.json

@@ -13,7 +13,9 @@
     "execa": "^8.0.1",
     "fast-glob": "3.3.1",
     "fdir": "^6.1.0",
-    "mitata": "^0.1.6",
+    "mitata": "^1.0.10",
+    "react": "^18.3.1",
+    "react-dom": "^18.3.1",
     "string-width": "7.1.0",
     "tinycolor2": "^1.6.0",
     "zx": "^7.2.3"

bench/runner.mjs

@@ -0,0 +1,19 @@
+import * as Mitata from "mitata";
+import process from "node:process";
+
+const asJSON = !!process?.env?.BENCHMARK_RUNNER;
+
+/** @param {Parameters<typeof Mitata["run"]>["0"]} opts */
+export function run(opts = {}) {
+  if (asJSON) {
+    opts.format = "json";
+  }
+
+  return Mitata.run(opts);
+}
+
+export const bench = Mitata.bench;
+
+export function group(_name, fn) {
+  return Mitata.group(fn);
+}

bench/snippets/array-arguments-slice.mjs

@@ -1,4 +1,4 @@
-import { bench, run } from "./runner.mjs";
+import { bench, run } from "../runner.mjs";
 
 function doIt(...args) {
   // we use .at() to prevent constant folding optimizations

bench/snippets/array-map.mjs

@@ -1,5 +1,5 @@
 // https://github.com/oven-sh/bun/issues/1096
-import { bench, run } from "./runner.mjs";
+import { bench, run } from "../runner.mjs";
 
 const identity = x => x;
 

bench/snippets/array-shift.mjs

@@ -1,4 +1,4 @@
-import { bench, run } from "./runner.mjs";
+import { bench, run } from "../runner.mjs";
 
 var myArray = new Array(5);
 bench("[1, 2, 3, 4, 5].shift()", () => {

bench/snippets/array-sort.mjs

@@ -1,4 +1,4 @@
-import { bench, run } from "./runner.mjs";
+import { bench, run } from "../runner.mjs";
 var comparator = (a, b) => a - b;
 
 const numbers = [

bench/snippets/arraybuffersink.mjs

@@ -1,6 +1,6 @@
 // @runtime bun
 import { ArrayBufferSink } from "bun";
-import { bench, run } from "./runner.mjs";
+import { bench, run } from "../runner.mjs";
 
 var short = "Hello World!";
 var shortUTF16 = "Hello World 💕💕💕";

bench/snippets/assert.mjs

@@ -1,5 +1,5 @@
 import * as assert from "assert";
-import { bench, run } from "./runner.mjs";
+import { bench, run } from "../runner.mjs";
 
 bench("deepEqual", () => {
   assert.deepEqual({ foo: "123", bar: "baz" }, { foo: "123", bar: "baz" });

bench/snippets/async-overhead.mjs

@@ -1,4 +1,4 @@
-import { bench, run } from "mitata";
+import { bench, run } from "../runner.mjs";
 
 bench("noop", function () {});
 bench("async function(){}", async function () {});

bench/snippets/atob.mjs

@@ -1,4 +1,4 @@
-import { bench, run } from "./runner.mjs";
+import { bench, run } from "../runner.mjs";
 
 function makeBenchmark(size) {
   const latin1 = btoa("A".repeat(size));

bench/snippets/blob.mjs

@@ -1,4 +1,4 @@
-import { bench, run } from "../node_modules/mitata/src/cli.mjs";
+import { bench, run } from "../runner.mjs";
 
 bench("new Blob(['hello world'])", function () {
   return new Blob(["hello world"]);

bench/snippets/buffer-base64.mjs

@@ -1,4 +1,4 @@
-import { bench, run } from "./runner.mjs";
+import { bench, run } from "../runner.mjs";
 
 function makeBenchmark(size, isToString) {
   const base64Input = Buffer.alloc(size, "latin1").toString("base64");

bench/snippets/buffer-concat.mjs

@@ -1,4 +1,4 @@
-import { bench, run } from "./runner.mjs";
+import { bench, run } from "../runner.mjs";
 
 for (let size of [32, 2048, 1024 * 16, 1024 * 1024 * 2, 1024 * 1024 * 16]) {
   const first = Buffer.allocUnsafe(size);

bench/snippets/buffer-create.mjs

@@ -1,7 +1,7 @@
 // @runtime bun,node,deno
 import { Buffer } from "node:buffer";
 import process from "node:process";
-import { bench, run } from "./runner.mjs";
+import { bench, run } from "../runner.mjs";
 
 const N = parseInt(process.env.RUN_COUNTER ?? "10000", 10);
 var isBuffer = new Buffer(0);

bench/snippets/buffer-fill.mjs

@@ -1,4 +1,4 @@
-import { bench, run } from "./runner.mjs";
+import { bench, run } from "../runner.mjs";
 
 for (let size of [32, 2048, 1024 * 16, 1024 * 1024 * 2, 1024 * 1024 * 16]) {
   for (let fillSize of [4, 8, 16, 11]) {

bench/snippets/buffer-to-string.mjs

@@ -1,6 +1,6 @@
 import { Buffer } from "node:buffer";
 import crypto from "node:crypto";
-import { bench, run } from "./runner.mjs";
+import { bench, run } from "../runner.mjs";
 
 const bigBuffer = Buffer.from("hello world".repeat(10000));
 const converted = bigBuffer.toString("base64");

bench/snippets/color.mjs

@@ -1,22 +1,22 @@
 import Color from "color";
 import tinycolor from "tinycolor2";
-import { bench, group, run } from "./runner.mjs";
+import { bench, group, run } from "../runner.mjs";
 
 const inputs = ["#f00", "rgb(255, 0, 0)", "rgba(255, 0, 0, 1)", "hsl(0, 100%, 50%)"];
 
 for (const input of inputs) {
   group(`${input}`, () => {
     if (typeof Bun !== "undefined") {
-      bench("Bun.color()", () => {
+      bench(`Bun.color() (${input})`, () => {
         Bun.color(input, "css");
       });
     }
 
-    bench("color", () => {
+    bench(`color (${input})`, () => {
       Color(input).hex();
     });
 
-    bench("'tinycolor2'", () => {
+    bench(`'tinycolor2' (${input})`, () => {
       tinycolor(input).toHexString();
     });
   });

bench/snippets/concat.js

@@ -1,6 +1,6 @@
 import { allocUnsafe } from "bun";
 import { readFileSync } from "fs";
-import { bench, group, run } from "./runner.mjs";
+import { bench, group, run } from "../runner.mjs";
 
 function polyfill(chunks) {
   var size = 0;
@@ -41,15 +41,16 @@ const chunkGroups = [
 ];
 
 for (const chunks of chunkGroups) {
-  group(`${chunks.reduce((prev, curr, i, a) => prev + curr.byteLength, 0)} bytes for ${chunks.length} chunks`, () => {
-    bench("Bun.concatArrayBuffers", () => {
+  const name = `${chunks.reduce((prev, curr, i, a) => prev + curr.byteLength, 0)} bytes for ${chunks.length} chunks`
+  group(name, () => {
+    bench(`Bun.concatArrayBuffers (${name})`, () => {
       Bun.concatArrayBuffers(chunks);
     });
-    bench("Uint8Array.set", () => {
+    bench(`Uint8Array.set (${name})`, () => {
       polyfill(chunks);
     });
 
-    bench("Uint8Array.set (uninitialized memory)", () => {
+    bench(`Uint8Array.set (uninitialized memory) (${name})`, () => {
       polyfillUninitialized(chunks);
     });
   });

bench/snippets/console-log.mjs

@@ -1,4 +1,4 @@
-import { bench, run } from "../node_modules/mitata/src/cli.mjs";
+import { bench, run } from "../runner.mjs";
 
 const json = {
   login: "wongmjane",

bench/snippets/cp.mjs

@@ -2,7 +2,7 @@ import { mkdirSync, rmSync, writeFileSync } from "fs";
 import { cp } from "fs/promises";
 import { tmpdir } from "os";
 import { join, resolve } from "path";
-import { bench, run } from "./runner.mjs";
+import { bench, run } from "../runner.mjs";
 
 import { fileURLToPath } from "url";
 const hugeDirectory = (() => {

bench/snippets/crypto-2190.mjs

@@ -1,6 +1,6 @@
 // https://github.com/oven-sh/bun/issues/2190
-import { bench, run } from "mitata";
 import { createHash } from "node:crypto";
+import { bench, run } from "../runner.mjs";
 
 const data =
   "Delightful remarkably mr on announcing themselves entreaties favourable. About to in so terms voice at. Equal an would is found seems of. The particular friendship one sufficient terminated frequently themselves. It more shed went up is roof if loud case. Delay music in lived noise an. Beyond genius really enough passed is up.";

bench/snippets/crypto-hasher.mjs

@@ -1,5 +1,5 @@
 // so it can run in environments without node module resolution
-import { bench, run } from "./runner.mjs";
+import { bench, run } from "../runner.mjs";
 
 import crypto from "node:crypto";
 

bench/snippets/crypto-randomUUID.mjs

@@ -1,4 +1,4 @@
-import { bench, run } from "./runner.mjs";
+import { bench, run } from "../runner.mjs";
 
 bench("crypto.randomUUID()", () => {
   return crypto.randomUUID();

bench/snippets/crypto-stream.mjs

@@ -1,6 +1,6 @@
 // https://github.com/oven-sh/bun/issues/2190
-import { bench, run } from "mitata";
 import { createHash } from "node:crypto";
+import { bench, run } from "../runner.mjs";
 
 const data =
   "Delightful remarkably mr on announcing themselves entreaties favourable. About to in so terms voice at. Equal an would is found seems of. The particular friendship one sufficient terminated frequently themselves. It more shed went up is roof if loud case. Delay music in lived noise an. Beyond genius really enough passed is up.";

bench/snippets/crypto.mjs

@@ -1,6 +1,6 @@
 // so it can run in environments without node module resolution
 import crypto from "node:crypto";
-import { bench, run } from "../node_modules/mitata/src/cli.mjs";
+import { bench, run } from "../runner.mjs";
 var foo = new Uint8Array(65536);
 bench("crypto.getRandomValues(65536)", () => {
   crypto.getRandomValues(foo);

bench/snippets/deep-equals.js

@@ -1,5 +1,5 @@
 import fastDeepEquals from "fast-deep-equal/es6/index";
-import { bench, group, run } from "./runner.mjs";
+import { bench, group, run } from "../runner.mjs";
 // const Date = globalThis.Date;
 
 function func1() {}
@@ -490,7 +490,7 @@ for (let { tests, description } of fixture) {
     var expected;
     group(describe, () => {
       for (let equalsFn of [Bun.deepEquals, fastDeepEquals]) {
-        bench(equalsFn.name, () => {
+        bench(`${describe}: ${equalsFn.name}`, () => {
           expected = equalsFn(value1, value2);
           if (expected !== equal) {
             throw new Error(`Expected ${expected} to be ${equal} for ${description}`);

bench/snippets/define-properties.mjs

@@ -1,4 +1,4 @@
-import { bench, run } from "../node_modules/mitata/src/cli.mjs";
+import { bench, run } from "../runner.mjs";
 
 const properties = {
   closed: {

bench/snippets/dns.node.mjs

@@ -1,5 +1,5 @@
 import { lookup, resolve } from "node:dns/promises";
-import { bench, run } from "./runner.mjs";
+import { bench, run } from "../runner.mjs";
 
 bench("(cached) dns.lookup remote x 50", async () => {
   var tld = "example.com";

bench/snippets/dns.ts

@@ -1,10 +1,10 @@
 import { dns } from "bun";
-import { bench, group, run } from "./runner.mjs";
+import { bench, group, run } from "../runner.mjs";
 
 async function forEachBackend(name, fn) {
   group(name, () => {
     for (let backend of ["libc", "c-ares", process.platform === "darwin" ? "system" : ""].filter(Boolean))
-      bench(backend, fn(backend));
+      bench(`${backend} (${name})`, fn(backend));
   });
 }
 

bench/snippets/encode-into.mjs

@@ -1,4 +1,4 @@
-import { bench, run } from "../node_modules/mitata/src/cli.mjs";
+import { bench, run } from "../runner.mjs";
 
 const encoder = new TextEncoder();
 

bench/snippets/error-capturestack.mjs

@@ -1,4 +1,4 @@
-import { bench, run } from "./runner.mjs";
+import { bench, run } from "../runner.mjs";
 
 var err = new Error();
 bench("Error.captureStackTrace(err)", () => {

bench/snippets/escapeHTML.js

@@ -1,4 +1,4 @@
-import { bench, group, run } from "./runner.mjs";
+import { bench, group, run } from "../runner.mjs";
 
 var bunEscapeHTML = globalThis.escapeHTML || Bun.escapeHTML;
 
@@ -92,24 +92,21 @@ function reactEscapeHtml(string) {
 // }
 
 for (let input of [
-  `long string, nothing to escape... `.repeat(9999999 * 3),
+  "long string, nothing to escape... ".repeat(9999999 * 3),
   FIXTURE.repeat(8000),
   // "[unicode]" + FIXTURE_WITH_UNICODE,
 ]) {
+  const name = `"${input.substring(0, Math.min(input.length, 32))}" (${new Intl.NumberFormat().format(input.length / 100_000_000_0)} GB)`
   group(
     {
       summary: true,
-      name:
-        `"` +
-        input.substring(0, Math.min(input.length, 32)) +
-        `"` +
-        ` (${new Intl.NumberFormat().format(input.length / 100_000_000_0)} GB)`,
+      name
     },
     () => {
       // bench(`ReactDOM.escapeHTML`, () => reactEscapeHtml(input));
       // bench(`html-entities.encode`, () => htmlEntityEncode(input));
       // bench(`he.escape`, () => heEscape(input));
-      bench(`Bun.escapeHTML`, () => bunEscapeHTML(input));
+      bench(`Bun.escapeHTML (${name})`, () => bunEscapeHTML(input));
     },
   );
 }

bench/snippets/ffi-overhead.mjs

@@ -1,5 +1,5 @@
 import { dlopen } from "bun:ffi";
-import { bench, group, run } from "./runner.mjs";
+import { bench, group, run } from "../runner.mjs";
 
 const types = {
   returns_true: {

bench/snippets/form-data.mjs

@@ -1,5 +1,5 @@
 // so it can run in environments without node module resolution
-import { bench, run } from "../node_modules/mitata/src/cli.mjs";
+import { bench, run } from "../runner.mjs";
 
 const blob = new Blob(["foo", "bar", "baz"]);
 bench("FormData.append", () => {

bench/snippets/headers.mjs

@@ -1,4 +1,4 @@
-import { bench, run } from "../node_modules/mitata/src/cli.mjs";
+import { bench, run } from "../runner.mjs";
 
 // pure JS implementation will optimze this out
 bench("new Headers", function () {

bench/snippets/index-of.mjs

@@ -1,4 +1,4 @@
-import { bench, run } from "./runner.mjs";
+import { bench, run } from "../runner.mjs";
 
 const input =
   "Hello, World! foo bar baz qux quux corge grault garply waldo fred plugh xyzzy thud z a b c d e f g h i j k l m n o p q r s t u v w x y z".split(

bench/snippets/json-parse-stringify.mjs

@@ -1,4 +1,4 @@
-import { bench, run } from "./runner.mjs";
+import { bench, run } from "../runner.mjs";
 
 var obj = {
   "restApiRoot": "/api",

bench/snippets/json-stringify.js

@@ -1,4 +1,4 @@
-import { bench, run } from "mitata";
+import { bench, run } from "../runner.mjs";
 
 bench("JSON.stringify({hello: 'world'})", () => JSON.stringify({ hello: "world" }));
 

bench/snippets/module-exports-putter.cjs

@@ -1,6 +1,6 @@
 // This is a stress test of some internals in How Bun does the module.exports assignment.
 // If it crashes or throws then this fails
-import("./runner.mjs").then(({ bench, run }) => {
+import("../runner.mjs").then(({ bench, run }) => {
   bench("Object.defineProperty(module, 'exports', { get() { return 42; } })", () => {
     Object.defineProperty(module, "exports", {
       get() {
@@ -36,7 +36,9 @@ import("./runner.mjs").then(({ bench, run }) => {
       a: 1,
     };
 
-    console.log(
+    const log = !process?.env?.BENCHMARK_RUNNER ? console.log : () => {};
+
+    log(
       module?.exports,
       require.cache[module.id].exports,
       module?.exports === require.cache[module.id],
@@ -49,10 +51,11 @@ import("./runner.mjs").then(({ bench, run }) => {
       return 42;
     };
 
-    console.log(module.exports, module.exports());
+    log(module.exports);
+    log(module.exports, module.exports());
 
     queueMicrotask(() => {
-      console.log(
+      log(
         module?.exports,
         require.cache[module.id].exports,
         module?.exports === require.cache[module.id]?.exports,

bench/snippets/native-overhead.mjs

@@ -1,4 +1,4 @@
-import { bench, run } from "./runner.mjs";
+import { bench, run } from "../runner.mjs";
 
 // These are no-op C++ functions that are exported to JS.
 const lazy = globalThis[Symbol.for("Bun.lazy")];

bench/snippets/new-incomingmessage.mjs

@@ -1,5 +1,5 @@
 import { IncomingMessage } from "node:http";
-import { bench, run } from "./runner.mjs";
+import { bench, run } from "../runner.mjs";
 
 const headers = {
   date: "Mon, 06 Nov 2023 05:12:49 GMT",

bench/snippets/node-vm.mjs

@@ -1,6 +1,6 @@
 // @runtime node, bun
 import * as vm from "node:vm";
-import { bench, run } from "./runner.mjs";
+import { bench, run } from "../runner.mjs";
 
 const context = {
   animal: "cat",

bench/snippets/noop.js

@@ -1,4 +1,4 @@
-import { bench, run } from "./runner.mjs";
+import { bench, run } from "../runner.mjs";
 
 var noop = globalThis[Symbol.for("Bun.lazy")]("noop");
 var { function: noopFn, callback } = noop;

bench/snippets/object-entries.mjs

@@ -1,5 +1,5 @@
 // so it can run in environments without node module resolution
-import { bench, run } from "../../node_modules/mitata/src/cli.mjs";
+import { bench, run } from "../runner.mjs";
 
 const obj = {
   a: 1,

bench/snippets/object-values.mjs

@@ -24,7 +24,7 @@ const obj = {
   w: 23,
 };
 
-import { bench, run } from "./runner.mjs";
+import { bench, run } from "../runner.mjs";
 
 var val = 0;
 bench("Object.values(literal)", () => {

bench/snippets/path-resolve.mjs

@@ -1,5 +1,5 @@
-import { bench, run } from "mitata";
 import { posix } from "path";
+import { bench, run } from "../runner.mjs";
 
 const pathConfigurations = [
   "",

bench/snippets/pbkdf2.mjs

@@ -1,6 +1,6 @@
 import { pbkdf2 } from "node:crypto";
 
-import { bench, run } from "./runner.mjs";
+import { bench, run } from "../runner.mjs";
 
 const password = "password";
 const salt = "salt";

bench/snippets/peek-promise.mjs

@@ -1,5 +1,5 @@
 import { peek } from "bun";
-import { bench, run } from "mitata";
+import { bench, run } from "../runner.mjs";
 
 let pending = Bun.sleep(1000);
 let resolved = Promise.resolve(1);

bench/snippets/performance-now-overhead.js

@@ -1,4 +1,4 @@
-import { bench, run } from "./runner.mjs";
+import { bench, run } from "../runner.mjs";
 bench("performance.now x 1000", () => {
   for (let i = 0; i < 1000; i++) {
     performance.now();

bench/snippets/private.mjs

@@ -1,4 +1,4 @@
-import { bench, run } from "../node_modules/mitata/src/cli.mjs";
+import { bench, run } from "../runner.mjs";
 // This is a benchmark of the performance impact of using private properties.
 
 bench("Polyfillprivate", () => {

bench/snippets/process-cwd.mjs

@@ -1,4 +1,4 @@
-import { bench, run } from "mitata";
+import { bench, run } from "../runner.mjs";
 
 bench("process.cwd()", () => {
   process.cwd();

bench/snippets/process-info.mjs

@@ -1,5 +1,5 @@
 import { performance } from "perf_hooks";
-import { bench, run } from "./runner.mjs";
+import { bench, run } from "../runner.mjs";
 
 bench("process.memoryUsage()", () => {
   process.memoryUsage();

bench/snippets/process.mjs

@@ -1,4 +1,4 @@
-import { bench, run } from "./runner.mjs";
+import { bench, run } from "../runner.mjs";
 
 bench("process.stderr.write('hey')", () => {
   process.stderr.write("hey");

bench/snippets/react-dom-render.bun.js

@@ -1,6 +1,6 @@
 import { renderToReadableStream as renderToReadableStreamBun } from "react-dom/server";
 import { renderToReadableStream } from "react-dom/server.browser";
-import { bench, group, run } from "./runner.mjs";
+import { bench, group, run } from "../runner.mjs";
 
 const App = () => (
   <div>

bench/snippets/read-file-chunk.mjs

@@ -1,7 +1,7 @@
 import { createReadStream, writeFileSync } from "node:fs";
 import { tmpdir } from "node:os";
 import { sep } from "node:path";
-import { bench, run } from "./runner.mjs";
+import { bench, run } from "../runner.mjs";
 
 if (!Promise.withResolvers) {
   Promise.withResolvers = function () {

bench/snippets/read-file.mjs

@@ -1,5 +1,5 @@
 import { readFileSync, writeFileSync } from "node:fs";
-import { bench, run } from "./runner.mjs";
+import { bench, run } from "../runner.mjs";
 
 var short = (function () {
   const text = "Hello World!";

bench/snippets/readdir.mjs

@@ -4,7 +4,7 @@ import { readdir } from "fs/promises";
 import { relative, resolve } from "path";
 import { argv } from "process";
 import { fileURLToPath } from "url";
-import { bench, run } from "./runner.mjs";
+import { bench, run } from "../runner.mjs";
 
 let dir = resolve(argv.length > 2 ? argv[2] : fileURLToPath(new URL("../../node_modules", import.meta.url)));
 if (dir.includes(process.cwd())) {
@@ -43,8 +43,11 @@ bench(`await readdir("${dir}", {recursive: false})`, async () => {
 });
 
 await run();
-console.log("\n", count, "files/dirs in", dir, "\n", "SHA256:", hash, "\n");
 
-if (count !== syncCount) {
-  throw new Error(`Mismatched file counts: ${count} async !== ${syncCount} sync`);
+if (!process?.env?.BENCHMARK_RUNNER) {
+  console.log("\n", count, "files/dirs in", dir, "\n", "SHA256:", hash, "\n");
+
+  if (count !== syncCount) {
+    throw new Error(`Mismatched file counts: ${count} async !== ${syncCount} sync`);
+  }
 }

bench/snippets/readfile-not-found.mjs

@@ -1,6 +1,6 @@
 import { readFileSync } from "node:fs";
 import { readFile } from "node:fs/promises";
-import { bench, run } from "./runner.mjs";
+import { bench, run } from "../runner.mjs";
 
 bench(`readFileSync(/tmp/404-not-found)`, () => {
   try {

bench/snippets/realpath.mjs

@@ -1,5 +1,5 @@
 import { realpathSync } from "node:fs";
-import { bench, run } from "./runner.mjs";
+import { bench, run } from "../runner.mjs";
 const count = parseInt(process.env.ITERATIONS || "1", 10) || 1;
 const arg = process.argv[process.argv.length - 1];