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Code Issues 11 Pull requests 1 Releases Activity

feat(cdn): derive Ubuntu routes from codenames #174

Merged
pat-s merged 1 commit from t3code/add-dynamic-cran-binary-routing into main 2026-08-30 12:25:23 +00:00
Conversation 0 Commits 1 Files changed 2 +16
2 changed files with 16 additions and 0 deletions
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10
edge/rpkgs-router.test.ts
View file

@ -19,6 +19,8 @@ const UA_R45_MUSL = 'R (4.5.3 x86_64-pc-linux-musl x86_64 linux-musl)';
const UA_R46_MUSL = 'R (4.6.0 x86_64-pc-linux-musl x86_64 linux-musl)';
const UA_R45_ALPINE = 'R/4.5.3 R (4.5.3 x86_64-pc-linux-musl x86_64 linux-musl) Alpine Linux 3.24';
const UA_R45_RESOLUTE = 'R/4.5.3 (Ubuntu 26.04) (aarch64-unknown-linux-gnu aarch64 linux-gnu)';
const UA_R45_FUTURE_UBUNTU =
'R/4.5.3 (Ubuntu 28.04; codename=dynamic-dugong) (aarch64-unknown-linux-gnu aarch64 linux-gnu)';
const UA_R45_DARWIN = 'R (4.5.1 aarch64-apple-darwin20 aarch64 darwin20)';
const UA_CURL = 'curl/8.0.1';
@ -150,6 +152,14 @@ Deno.test('rpkgs-router', async (t) => {
);
});
await t.step('resolves a future Ubuntu release from its codename', async () => {
const res = await probe('/src/contrib/PACKAGES.gz', UA_R45_FUTURE_UBUNTU);
assertEquals(
res.location,
'https://cran.rpkgs.com/arm64/dynamic-dugong/latest/src/contrib/PACKAGES.gz',
);
});
await t.step('sends an unidentifiable distro to CRAN', async () => {
const res = await probe('/src/contrib/PACKAGES.gz', UA_R45_MUSL);
assertEquals(res.location, 'https://cran.r-project.org/src/contrib/PACKAGES.gz');

6
edge/rpkgs-router.ts
View file

@ -58,6 +58,7 @@ const MACOS_BIN_REGEX =
const RHEL_REGEX = /(almalinux|rocky)[^\d]*(\d+)/i;
const UBUNTU_REGEX = /Ubuntu ([\d.]+)/i;
const UBUNTU_CODENAME_REGEX = /Ubuntu [\d.]+;\s*codename=([a-z][a-z0-9-]*)/i;
const UBUNTU_CODENAMES: Record<string, string> = {
'26.04': 'resolute',
'24.04': 'noble',
@ -137,6 +138,11 @@ function parseSlot(userAgent: string): string | null {
const ubuntu = userAgent.match(UBUNTU_REGEX);
if (ubuntu) {
const codenameMatch = userAgent.match(UBUNTU_CODENAME_REGEX);
if (codenameMatch) {
return `${arch}/${codenameMatch[1].toLowerCase()}`;
}
const codename = UBUNTU_CODENAMES[ubuntu[1]];
if (codename) {
return `${arch}/${codename}`;