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fix: use native Windows ARM64 binary for Bun >= 1.3.10 (#165)

Browse Source 
Bun v1.3.10 ships native Windows ARM64 binaries. Update
getArchitecture() and getAvx2() to be version-aware so that
windows-11-arm runners download bun-windows-aarch64.zip instead of
falling back to bun-windows-x64-baseline.zip. The x64 fallback is
preserved for older versions that lack ARM64 assets.

Closes #164

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Dariel Dato-on
2026-02-26 15:21:29 -06:00
committed by GitHub
parent ab8cb4e8f8
commit 0ff83bfc51
6 changed files with 263 additions and 97 deletions
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tests/download-url.spec.ts
+85 -2
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@@ -7,6 +7,9 @@ const MOCK_TAGS = [
{ ref: "refs/tags/bun-v1.0.0" },
{ ref: "refs/tags/bun-v1.0.1" },
{ ref: "refs/tags/bun-v1.1.0" },
{ ref: "refs/tags/bun-v1.3.9" },
{ ref: "refs/tags/bun-v1.3.10" },
{ ref: "refs/tags/bun-v1.4.0" },
{ ref: "refs/tags/canary" },
];
@@ -98,7 +101,7 @@ describe("getDownloadUrl", () => {
});
expect(url).toBe(
"https://github.com/oven-sh/bun/releases/download/bun-v1.1.0/bun-linux-x64.zip",
"https://github.com/oven-sh/bun/releases/download/bun-v1.4.0/bun-linux-x64.zip",
);
expect(requestSpy).toHaveBeenCalledTimes(1);
});
@@ -111,7 +114,7 @@ describe("getDownloadUrl", () => {
});
expect(url).toBe(
"https://github.com/oven-sh/bun/releases/download/bun-v1.1.0/bun-linux-x64.zip",
"https://github.com/oven-sh/bun/releases/download/bun-v1.4.0/bun-linux-x64.zip",
);
expect(requestSpy).toHaveBeenCalledTimes(1);
});
@@ -141,6 +144,86 @@ describe("getDownloadUrl", () => {
});
});
describe("Windows ARM64", () => {
it("should use native aarch64 binary for Bun >= 1.3.10", async () => {
const url = await getDownloadUrl({
version: "1.3.10",
os: "windows",
arch: "arm64",
});
expect(url).toBe(
"https://github.com/oven-sh/bun/releases/download/bun-v1.3.10/bun-windows-aarch64.zip",
);
expect(requestSpy).toHaveBeenCalledTimes(0);
});
it("should use native aarch64 binary for Bun 1.4.0", async () => {
const url = await getDownloadUrl({
version: "1.4.0",
os: "windows",
arch: "arm64",
});
expect(url).toBe(
"https://github.com/oven-sh/bun/releases/download/bun-v1.4.0/bun-windows-aarch64.zip",
);
expect(requestSpy).toHaveBeenCalledTimes(0);
});
it("should fall back to x64-baseline for Bun < 1.3.10", async () => {
const url = await getDownloadUrl({
version: "1.1.0",
os: "windows",
arch: "arm64",
});
expect(url).toBe(
"https://github.com/oven-sh/bun/releases/download/bun-v1.1.0/bun-windows-x64-baseline.zip",
);
expect(requestSpy).toHaveBeenCalledTimes(0);
});
it("should fall back to x64-baseline for Bun 1.3.9", async () => {
const url = await getDownloadUrl({
version: "1.3.9",
os: "windows",
arch: "arm64",
});
expect(url).toBe(
"https://github.com/oven-sh/bun/releases/download/bun-v1.3.9/bun-windows-x64-baseline.zip",
);
expect(requestSpy).toHaveBeenCalledTimes(0);
});
it("should use native aarch64 for dynamic version resolving to >= 1.3.10", async () => {
const url = await getDownloadUrl({
version: "^1.3.0",
os: "windows",
arch: "arm64",
});
expect(url).toBe(
"https://github.com/oven-sh/bun/releases/download/bun-v1.4.0/bun-windows-aarch64.zip",
);
expect(requestSpy).toHaveBeenCalledTimes(1);
});
it("should use native aarch64 for canary on Windows ARM64", async () => {
const url = await getDownloadUrl({
version: "canary",
os: "windows",
arch: "arm64",
});
expect(url).toBe(
"https://github.com/oven-sh/bun/releases/download/canary/bun-windows-aarch64.zip",
);
expect(requestSpy).toHaveBeenCalledTimes(1);
});
});
describe("Token Handling", () => {
it("should pass token to API request when resolving dynamic versions", async () => {
await getDownloadUrl({