Summary

Routes pnpmfile ctx.log(...) calls through a structured channel, so under --reporter=ndjson they appear as {\"name\":\"pnpm:hook\",\"prefix\":<root>,\"from\":<pnpmfile>,\"hook\":...,\"message\":...} records on stdout — matching pnpm's surface — while default mode still gets the friendly [pnpmfile] message line on stderr. Unblocks the ndjson pnpm:hook ports tracked in test/PNPM_TEST_IMPORT.md: hooks.ts:366 (readPackage) and hooks.ts:468 (afterAllResolved). hooks.ts:404 stays parked because it additionally requires --global-pnpmfile, which is a separate feature.

Also mirrors is-positive and is-negative fixtures (referenced pervasively across pnpm's test suite — e.g. hooks.ts:217, :404, plus 5 substitution sites in pnpm_install_misc.bats) so future ports can use the real fixtures verbatim instead of substituting is-odd/is-even.

Implementation

Both pnpmfile shims (the one-shot for afterAllResolved / preResolution and the long-lived host for readPackage) now emit ctx.log(...) calls as sentinel-tagged JSON lines on stderr (__AUBE_HOOK_LOG__ {\"hook\":...,\"message\":...}). A new spawn_stderr_forwarder task reads child stderr line-by-line and:

• Sentinel-tagged lines: enriched with name=pnpm:hook + project root (prefix) + pnpmfile path (from), then either written to stdout as ndjson (when --reporter=ndjson is active) or to stderr as [pnpmfile] message (default mode).
• Untagged lines: passed through verbatim, so require()-time stack traces and user console.error output keep working unchanged.

Both spawn paths switch from Stdio::inherit() to Stdio::piped() for stderr. The one-shot path awaits the forwarder before returning so records can't be reordered after the next install step. The ReadPackageHost aborts its forwarder on Drop.

A process-wide pnpmfile::set_ndjson_reporter(bool) is flipped by main when --reporter=ndjson is in effect; all hook entry points (run_after_all_resolved, run_pre_resolution, ReadPackageHost::spawn) gain a prefix: &Path parameter that callers in install/mod.rs, update.rs, and commands/mod.rs wire to cwd.

Tests

Two new ports in test/pnpm_install_hooks.bats, bumping hooks.ts coverage 8/22 → 10/22:

• pnpmfile: readPackage ctx.log surfaces as pnpm:hook ndjson on stdout — ports hooks.ts:366. Uses @pnpm.e2e/pkg-with-1-dep + @pnpm.e2e/dep-of-pkg-with-1-dep directly (the ^100.0.0 constraint already serves both 100.0.0 and 100.1.0, so the hook's pin to 100.0.0 is a real downgrade without needing addDistTag).
• pnpmfile: afterAllResolved ctx.log surfaces as pnpm:hook ndjson on stdout — ports hooks.ts:468. Uses pnpm's @pnpm.e2e/pkg-with-1-dep fixture verbatim.

Both assert hook, message, non-empty prefix, non-empty from. The readPackage variant additionally asserts the lockfile reflects the hook's actual mutation (regression guard if the hook silently no-ops).

Fixtures

• is-positive versions 1.0.0, 2.0.0, 3.0.0, 3.1.0 (28 KB total)
• is-negative versions 1.0.0, 1.0.1, 2.0.0, 2.0.1, 2.0.2, 2.1.0 (40 KB total)
• Mirrored via the canonical procedure documented at the top of test/registry/config.yaml: temporarily added the npmjs uplink, fetched packuments + tarballs through Verdaccio, then reverted the uplink. Tarball URLs in the packuments rewritten to http://localhost:4873/... and uplink metadata (_distfiles, _uplinks) cleared to match the existing offline-only fixture format.

The doc convention in PNPM_TEST_IMPORT.md is updated to call these out alongside is-odd/is-even/is-number/semver.

Test plan

• cargo fmt --check
• cargo clippy --all-targets -- -D warnings
• cargo test (1221 tests across the workspace, 0 failures)
• mise run test:bats test/pnpm_install_hooks.bats — 12/12 (10 active + 2 documented divergence skips)
• mise run test:bats test/install.bats test/pnpmfile.bats — 70/70 unchanged
• Smoke test: offline verdaccio --config config.yaml (no uplinks) serves both packuments and tarballs for is-positive and is-negative correctly.
• Manual smoke: aube install --reporter=ndjson against a fixture pnpmfile with ctx.log calls in both readPackage and afterAllResolved emits well-formed pnpm:hook records on stdout; default mode emits [pnpmfile] message on stderr.

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