Files
hyperframes/packages
Miguel Ángel 78069da140 fix(cli): purge stale/partial browser installs instead of wedging retries (#1913)
* fix(cli): purge stale/partial browser installs instead of wedging retries

Two independent reports of the same failure: a `chrome-headless-shell`
zip extraction gets interrupted (Windows AV lock, sleep/wake, ctrl-C)
and leaves only the alphabetically-early files (ABOUT/LICENSE) in the
target directory, no executable. Every subsequent `browser ensure` (or
implicit re-download from `findBrowser`/`ensureBrowser`) sees the
directory already exists and hands it straight to @puppeteer/browsers'
install(), which throws "folder exists but the executable is missing"
without re-extracting -- permanently wedging the machine until someone
manually deletes the directory. `--force` didn't help because it was a
phantom flag: `browser.ts` never declared it, so it silently did
nothing (mentioned only in an error-message string).

Root cause: `findFromCache()` already detects this exact case (dir
exists, exe missing) and returns it as `staleHyperframesCachePath`, but
`findBrowser()`/`ensureBrowser()` fed that straight into a re-download
without ever deleting the stale directory first, so install() hit the
same "exists" branch every time.

Fix:
- `findFromCache()` also returns `staleInstallPath` (InstalledBrowser's
  `.path` -- the actual install-folder root, not the missing
  executablePath) for the stale case.
- Both `findBrowser()` and `ensureBrowser()` now purge that directory
  (`rmSync`, inside the existing `withInstallLock` mutex from #1866 so
  a purge can't race a concurrent installer) before retrying, so
  install() actually re-extracts instead of erroring.
- Wired up a real `--force` flag on `hyperframes browser ensure`: it
  purges the whole HF-managed cache (reusing the already-tested
  `clearBrowser()`) and skips every cache/system shortcut, so it always
  gets a fresh download regardless of what's currently on disk --
  matching what the existing (previously false) help text already
  claimed it did.

Not fixed here (separate root cause, flagged for later): neither
report's machine had a usable auto-detected system Chrome fallback on
Windows -- `SYSTEM_CHROME_PATHS` only lists macOS/Linux paths, so
`findFromSystem()` can never succeed on win32. Both reporters worked
around this manually via HYPERFRAMES_BROWSER_PATH, which still works
fine; adding real Windows system-Chrome detection is a distinct,
larger change.

Test: extended manager.test.ts's existing stale-cache-redownload test
to include a populated stale install directory and assert it's gone
before the mocked install() is called (was previously only asserting
the redownload happened, not that the fix's purge step ran). Added a
new test for `ensureBrowser({force: true})` purging the cache and
bypassing a healthy cache/system-Chrome shortcut. Also fixed the shared
fs mock's `rmSync` to actually simulate recursive deletion (drop
nested tracked paths too), which the new tests need and the old ones
never exercised. Full CLI suite (1222 tests) passes.

* fix(cli): serialize force browser cache purge
2026-07-04 14:08:12 -07:00
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