Latest SDK

1#!/usr/bin/env bash
2# Print the latest Expo SDK major version.
3#
4# Usage: latest-sdk.sh
5#
6# The `expo` package's major version IS the SDK version (expo@56.x -> SDK 56).
7# Uses bun to run `npm view expo dist-tags --json` (so it honors the local npm
8# registry / proxy / auth config rather than hardcoding registry.npmjs.org),
9# JSON.parse the result, and take the major via the `semver` package (falling
10# back to a numeric split if semver can't be resolved). Run via the skill's
11# `bash *expo-skill-eval/scripts/*` rule so SDK detection stays prompt-free —
12# the npm child runs under bun, not as its own Bash tool call.
13set -euo pipefail
14
15exec bun -e '
16  let out;
17  try {
18    out = await Bun.$`npm view expo dist-tags --json`.text();
19  } catch (e) {
20    console.error("error: `npm view expo` failed: " + (e?.message ?? e));
21    process.exit(1);
22  }
23  let latest;
24  try {
25    latest = JSON.parse(out)?.latest;
26  } catch {
27    console.error("error: could not JSON.parse `npm view` output");
28    process.exit(1);
29  }
30  if (!latest) {
31    console.error("error: no `latest` dist-tag for expo");
32    process.exit(1);
33  }
34  let major;
35  try {
36    const semver = await import("semver");
37    major = (semver.default ?? semver).major(latest);
38  } catch {
39    major = Number.parseInt(String(latest).split(".")[0], 10);
40  }
41  if (!Number.isInteger(major)) {
42    console.error(`error: could not parse SDK major from "${latest}"`);
43    process.exit(1);
44  }
45  console.log(major);
46'