From 303417d513cd1a5d89a3bd4623584bfab1549a8b Mon Sep 17 00:00:00 2001
From: Tori0419 <17581705419@163.com>
Date: Mon, 9 Mar 2026 00:25:20 +0800
Subject: [PATCH] fix(bun): prefer baseline linux releases (fix #879)

---
 bun/releases.js      | 104 ++++++++++++++++++++++++++++++++-----------
 bun/releases.test.js |  61 +++++++++++++++++++++++++
 2 files changed, 138 insertions(+), 27 deletions(-)
 create mode 100644 bun/releases.test.js

diff --git a/bun/releases.js b/bun/releases.js
index b54035d..f4dd475 100644
--- a/bun/releases.js
+++ b/bun/releases.js
@@ -4,39 +4,89 @@ var github = require('../_common/github.js');
 var owner = 'oven-sh';
 var repo = 'bun';
 
+function isDebugRelease(release) {
+  return release.name.includes('-profile');
+}
+
+function isBaselineRelease(release) {
+  return release.name.includes('-baseline');
+}
+
+function getLinuxAmd64Target(name) {
+  let match = name.match(/bun-(linux-x64(?:-musl)?)(?:-baseline)?[.]/);
+  if (!match) {
+    return '';
+  }
+
+  return match[1];
+}
+
+function prepareRelease(release) {
+  if (isDebugRelease(release)) {
+    return null;
+  }
+
+  let rel = Object.assign({}, release);
+  if (isBaselineRelease(rel)) {
+    rel._baseline = true;
+  }
+
+  let isMusl = rel.name.includes('-musl');
+  if (isMusl) {
+    rel._musl = true;
+    rel.libc = 'musl';
+  } else if (rel.name.includes('-linux-')) {
+    rel.libc = 'gnu';
+  }
+
+  // bun's baseline Linux x64 builds avoid SIGILL on older/container CPUs.
+  rel._target = getLinuxAmd64Target(rel.name);
+  rel.version = rel.version.replace(/bun-/g, '');
+
+  return rel;
+}
+
+function compareReleasePriority(a, b) {
+  if (a.version !== b.version) {
+    return 0;
+  }
+
+  if (!a._target || a._target !== b._target) {
+    return 0;
+  }
+
+  if (a._baseline && !b._baseline) {
+    return -1;
+  }
+  if (!a._baseline && b._baseline) {
+    return 1;
+  }
+
+  return 0;
+}
+
+function normalizeReleases(releases) {
+  return releases
+    .map(prepareRelease)
+    .filter(Boolean)
+    .sort(compareReleasePriority)
+    .map(function (release) {
+      delete release._target;
+      return release;
+    });
+}
+
 module.exports = function () {
   return github(null, owner, repo).then(function (all) {
-    all.releases = all.releases
-      .filter(function (r) {
-        let isDebug = r.name.includes('-profile');
-        if (isDebug) {
-          return false;
-        }
-
-        let isAncient = r.name.includes('-baseline');
-        if (isAncient) {
-          return false;
-        }
-
-        let isMusl = r.name.includes('-musl');
-        if (isMusl) {
-          r._musl = true;
-          r.libc = 'musl';
-        } else if (r.os === 'linux') {
-          r.libc = 'gnu';
-        }
-
-        return true;
-      })
-      .map(function (r) {
-        // bun-v0.5.1 => v0.5.1
-        r.version = r.version.replace(/bun-/g, '');
-        return r;
-      });
+    all.releases = normalizeReleases(all.releases);
     return all;
   });
 };
 
+module.exports._normalizeReleases = normalizeReleases;
+module.exports._prepareRelease = prepareRelease;
+module.exports._compareReleasePriority = compareReleasePriority;
+
 if (module === require.main) {
   module.exports().then(function (all) {
     all = require('../_webi/normalize.js')(all);
diff --git a/bun/releases.test.js b/bun/releases.test.js
new file mode 100644
index 0000000..91ba279
--- /dev/null
+++ b/bun/releases.test.js
@@ -0,0 +1,61 @@
+'use strict';
+
+let test = require('node:test');
+let assert = require('node:assert/strict');
+
+let BunReleases = require('./releases.js');
+
+test('keeps Linux baseline builds and prefers them over default x64 assets', function () {
+  let releases = [
+    { name: 'bun-linux-x64.zip', version: 'bun-v1.2.21', os: 'linux' },
+    {
+      name: 'bun-linux-x64-baseline.zip',
+      version: 'bun-v1.2.21',
+      os: 'linux',
+    },
+    { name: 'bun-linux-x64-musl.zip', version: 'bun-v1.2.21', os: 'linux' },
+    {
+      name: 'bun-linux-x64-musl-baseline.zip',
+      version: 'bun-v1.2.21',
+      os: 'linux',
+    },
+    {
+      name: 'bun-linux-x64-profile.zip',
+      version: 'bun-v1.2.21',
+      os: 'linux',
+    },
+  ];
+
+  let normalized = BunReleases._normalizeReleases(releases);
+
+  assert.deepEqual(
+    normalized.map(function (release) {
+      return release.name;
+    }),
+    [
+      'bun-linux-x64-baseline.zip',
+      'bun-linux-x64.zip',
+      'bun-linux-x64-musl-baseline.zip',
+      'bun-linux-x64-musl.zip',
+    ],
+  );
+  assert.equal(normalized[0]._baseline, true);
+  assert.equal(normalized[0].libc, 'gnu');
+  assert.equal(normalized[2].libc, 'musl');
+});
+
+test('leaves non-Linux targets in their original order', function () {
+  let releases = [
+    { name: 'bun-darwin-aarch64.zip', version: 'bun-v1.2.21', os: 'macos' },
+    { name: 'bun-windows-x64.zip', version: 'bun-v1.2.21', os: 'windows' },
+  ];
+
+  let normalized = BunReleases._normalizeReleases(releases);
+
+  assert.deepEqual(
+    normalized.map(function (release) {
+      return release.name;
+    }),
+    ['bun-darwin-aarch64.zip', 'bun-windows-x64.zip'],
+  );
+});