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* security: isolate every gstack Bun entry point from the audited checkout's .env and bunfig.toml Bun auto-loads .env, .env.local and .env.<NODE_ENV> from its cwd and runs a cwd bunfig.toml preload before the program starts. gstack runs inside the repo it audits, so a committed .env could steer state roots, the claude binary or spend caps, and a bunfig preload ran arbitrary code in every bin and hook. Every bun shebang, shell and skill caller, TypeScript spawn and compiled build now disables both (--no-env-file --config=/dev/null, bunIsolationArgs(), --no-compile-autoload-dotenv/bunfig), with a ratchet and hostile-fixture regressions. Co-authored-by: capy-ai[bot] <230910855+capy-ai[bot]@users.noreply.github.com> * test: name the directly executed scripts in the isolation ratchet Co-authored-by: capy-ai[bot] <230910855+capy-ai[bot]@users.noreply.github.com> * test: follow the isolation flags in touchfiles, copy lists, recipe assertions and the harness pin Co-authored-by: capy-ai[bot] <230910855+capy-ai[bot]@users.noreply.github.com> * fix: keep browse/src/bun-child-config.ts unchanged so the native cookie qualification still binds Co-authored-by: capy-ai[bot] <230910855+capy-ai[bot]@users.noreply.github.com> * fix(windows): the empty bunfig outlives its process so the timeline hook's detached repair child can read it Co-authored-by: capy-ai[bot] <230910855+capy-ai[bot]@users.noreply.github.com> * v1.91.159.0 security: gstack's Bun entry points ignore the audited repo's .env and bunfig.toml (S1) Co-authored-by: capy-ai[bot] <230910855+capy-ai[bot]@users.noreply.github.com> * test: plan-mode render pattern accepts the isolation flags Co-authored-by: capy-ai[bot] <230910855+capy-ai[bot]@users.noreply.github.com> --------- Co-authored-by: capy-ai[bot] <230910855+capy-ai[bot]@users.noreply.github.com>
32 lines
1.9 KiB
Cheetah
32 lines
1.9 KiB
Cheetah
## Polluter recipe
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A polluter is an earlier test that leaks state the victim depends on: the victim
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passes alone and fails in the suite or in one shard.
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1. **File order from the CI log.** The shard runner prints its file list in
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execution order. Take the files that ran before the victim in the failing
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shard (`gh run view <run-id> --log`, or the local shard listing
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`bun --no-env-file --config=/dev/null run scripts/ship-measure.ts free --shard <I>` which reproduces the exact
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packing `bun run test` used).
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2. **Confirm the dependency.** The victim alone passes; the victim after the
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earlier files fails (`<affected-files>` is the earlier files then the victim,
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comma-joined, in shard order):
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```bash
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bun --no-env-file --config=/dev/null run scripts/ship-measure.ts free --files <failing-test-file> --reruns 3
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bun --no-env-file --config=/dev/null run scripts/ship-measure.ts free --files <affected-files> --reruns 3
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```
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3. **Bisect the earlier files.** Halve the earlier list, keep the half that
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still fails the victim, repeat until one file remains. Each step is one
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`--files` run; log the list at every step.
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4. **Name what leaked.** Read the polluter for state that outlives it: an env
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var, `process.cwd()`, `process.exitCode`, a module-level cache or singleton,
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a mock or spy left installed, a server or watcher left listening, a temp
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file under a shared path, a learnings or state file under the home
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directory (the free lane's home guard reports these), a global timer.
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5. **Fix the polluter, not the victim.** Restore or isolate the state where it
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is created (`afterEach`, `mkdtemp`, a private env); an order-dependent
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`beforeEach` added to the victim hides the leak for the next victim.
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6. **Report:** `POLLUTER: <file> leaked <what> into <victim>; fixed by <change>`,
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with the bisect log. If the polluter is on main, the victim's failure is
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outside the PR (route it with the flake recipe's evidence section).
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