hermes-agent/apps/desktop/electron/update-rebuild.test.cjs
brooklyn! 4b7a186003
fix(desktop): retry the self-update rebuild once so the app relaunches (#48122)
The desktop self-update runs `hermes update` then `hermes desktop
--build-only`, and only relaunches if the rebuild returns 0. The first
`--build-only` can exit nonzero on a still-settling post-update tree or a
network-blocked Electron fetch that the installer's self-heal repaired
mid-run — so both updaters (the Tauri setup binary and the in-app POSIX
path) bailed before the relaunch step. The update landed but the app
never restarted; a manual launch worked because the heal had completed.

Retry `--build-only` once in both paths before failing, mirroring the
retry-once `hermes update` already does (and the CLI `hermes update`'s
own desktop rebuild). A second run builds clean off the healed dist and
is a near-no-op when the first actually succeeded (content-hash stamp).

- update.rs: retry stage 2; add rebuild_needs_retry() + test
- main.cjs: retry via new update-rebuild.cjs helper (behavior-tested)
2026-06-17 19:33:27 -05:00

55 lines
1.9 KiB
JavaScript

/**
* Tests for electron/update-rebuild.cjs — the retry-once policy for the desktop
* `--build-only` rebuild during self-update.
*
* Run with: node --test electron/update-rebuild.test.cjs
* (Wired into npm test:desktop:platforms in package.json.)
*
* Why this matters: a first rebuild can return nonzero on a still-settling tree
* or a self-healed (network-blocked) Electron download. Without a second attempt
* the updater bails before the relaunch step — the app updates but never restarts
* (the field report behind this fix). The retry must fire on failure, not on
* success, and must run at most twice.
*/
const test = require('node:test')
const assert = require('node:assert/strict')
const { shouldRetryRebuild, runRebuildWithRetry } = require('./update-rebuild.cjs')
test('shouldRetryRebuild retries only on a non-success exit', () => {
assert.equal(shouldRetryRebuild(0), false)
assert.equal(shouldRetryRebuild(1), true)
assert.equal(shouldRetryRebuild(null), true)
})
test('a clean first rebuild runs once and does not retry', async () => {
const codes = []
const result = await runRebuildWithRetry(attempt => {
codes.push(attempt)
return Promise.resolve({ code: 0 })
})
assert.deepEqual(codes, [0])
assert.equal(result.code, 0)
})
test('a failed first rebuild retries once and succeeds', async () => {
const codes = []
const result = await runRebuildWithRetry(attempt => {
codes.push(attempt)
return Promise.resolve({ code: attempt === 0 ? 1 : 0 })
})
assert.deepEqual(codes, [0, 1])
assert.equal(result.code, 0)
})
test('a rebuild that keeps failing runs at most twice and reports the failure', async () => {
const codes = []
const result = await runRebuildWithRetry(attempt => {
codes.push(attempt)
return Promise.resolve({ code: 1, error: 'rebuild-failed' })
})
assert.deepEqual(codes, [0, 1])
assert.equal(result.code, 1)
assert.equal(result.error, 'rebuild-failed')
})