build-cran-binaries/local
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feat(abi): repair from the recorded verdicts rather than an ad-hoc scan (#206)
## Why

The reprex found 44 routed-path failures: `Rcpp`, `Matrix` and `RJSONIO` served to R 4.4 from 4.5 builds. Two causes, both now fixed (#205 here, #129 in bincraft) — but the repair itself also needs redoing, and the lists it ran from no longer exist.

Those lists came from a one-off local symbol scan, seeded from a candidate set derived on a single slot. That made them a lower bound by construction: the scan found 846 package-slot pairs, while inspecting every object found **4077** unsafe.

`abi_flat_safety` now holds the authoritative answer for every slot, written by the flat-safety backfill from the binaries themselves:

```
95418 inspected, 91325 safe, 4077 unsafe (4.3%)
```

against the 93% of compiled packages the source classifier suspects.

## What it does

- `local/list-unsafe-flat-objects.R` prints the objects recorded as unable to load under some minor, for one slot.
- The workflow rebuilds each under **every** R minor installed in the image, with **no `--sensitive-only` gate**. Since bincraft v5.3.0 the destination is decided by the built binary's symbols, so a package needing a per-minor slot lands there and a portable one lands in the flat slot. Gating on the source classifier is exactly what let `Rcpp` slip through.

## Safety

It **fails loudly when a slot has no verdicts at all**, rather than printing an empty list. An empty repair list is indistinguishable from "nothing to repair" and would read as success while doing nothing — the same shape of silent failure as the missing `PGPASS`.

`crow lint` passes.

## After this

Run it fleet-wide, re-index, then re-run the reprex. The routed paths are the ones that must come back clean; the `flat` form's failures are the separate prune question.

Reviewed-on: #206
2026-09-07 18:46:50 +00:00
..
patches fix(patches): support RcppParallel 6.2.1 2026-08-30 14:26:37 +00:00
tests feat(rebuild): shard the weekly rebuild and make each shard resumable (#163) 2026-08-12 08:30:29 +00:00
archive-missed-pkgs.R feat: R-minor-sensitive binary builds (full + iterative) (#84) 2026-06-14 08:04:40 +00:00
backfill-abi-classification.R feat(abi): backfill classifier verdicts for pre-per-minor packages (#199) 2026-09-04 10:34:49 +00:00
backfill-flat-safety.R fix(abi): enumerate the flat slot from S3, not through the edge (#203) 2026-09-05 09:41:57 +00:00
build-all.R fix(build): strip the s3 scheme so per-minor objects reach their pass (#192) 2026-09-02 07:11:10 +00:00
build-one.R feat: patch registry + wiring for per-package patching (#103) 2026-06-30 08:50:19 +00:00
check-cdn-cache.sh add alpine321 to scripts 2024-12-29 10:18:55 +01:00
check-NA.R feat: R-minor-sensitive binary builds (full + iterative) (#84) 2026-06-14 08:04:40 +00:00
debug-packages-writing.R feat: R-minor-sensitive binary builds (full + iterative) (#84) 2026-06-14 08:04:40 +00:00
dedupe-audit-issue.R fix(audit): replace arch subsection in place instead of appending duplicates (#138) 2026-07-21 08:51:23 +00:00
detect-duplicates.R feat: R-minor-sensitive binary builds (full + iterative) (#84) 2026-06-14 08:04:40 +00:00
excluded-packages.json feat: R-minor-sensitive binary builds (full + iterative) (#84) 2026-06-14 08:04:40 +00:00
failing-builds-classify.R feat(local): aggregate blocked-on-dependency reporting by dependency (#131) 2026-07-16 21:24:03 +00:00
failing-builds-report.R feat(local): detect dependency-cascade failures generally, not just RcppParallel (#128) 2026-07-16 08:23:54 +00:00
fetch-rebuild-packages-from-issue.R fix(audit): replace arch subsection in place instead of appending duplicates (#138) 2026-07-21 08:51:23 +00:00
find-R-api-packages.sh chore(local): add S3 migration and CRAN-source helper scripts 2026-06-14 13:02:48 +02:00
install-bincraft.R refactor: migrate package installation from pak to uvr (#147) 2026-07-31 12:19:26 +00:00
label-removed-cran-packages.R feat: R-minor-sensitive binary builds (full + iterative) (#84) 2026-06-14 08:04:40 +00:00
last-processed-by-platform.R feat: R-minor-sensitive binary builds (full + iterative) (#84) 2026-06-14 08:04:40 +00:00
list-unsafe-flat-objects.R feat(abi): repair from the recorded verdicts rather than an ad-hoc scan (#206) 2026-09-07 18:46:50 +00:00
migrate-s3-hetzner-to-backblaze.sh chore(local): add S3 migration and CRAN-source helper scripts 2026-06-14 13:02:48 +02:00
missing-cran-packages-db.R feat: R-minor-sensitive binary builds (full + iterative) (#84) 2026-06-14 08:04:40 +00:00
missing-cran-packages.R feat: R-minor-sensitive binary builds (full + iterative) (#84) 2026-06-14 08:04:40 +00:00
missing-packages-in-index.R feat: R-minor-sensitive binary builds (full + iterative) (#84) 2026-06-14 08:04:40 +00:00
packages-to-build.R fix(build): scope the errored-package filter to the snapshot's R minor (#194) 2026-09-03 13:37:04 +00:00
packages-without-any-binary.R feat: R-minor-sensitive binary builds (full + iterative) (#84) 2026-06-14 08:04:40 +00:00
proposal-tracking-lib.R feat(local): aggregate blocked-on-dependency reporting by dependency (#131) 2026-07-16 21:24:03 +00:00
proposal-tracking.R feat(local): aggregate blocked-on-dependency reporting by dependency (#131) 2026-07-16 21:24:03 +00:00
propose-patches.R feat(local): aggregate blocked-on-dependency reporting by dependency (#131) 2026-07-16 21:24:03 +00:00
prune-stale-flat-binaries.R fix(abi): prune flat-slot binaries of ABI-risky packages (#200) 2026-09-04 10:54:09 +00:00
query-pkgs-without-old-versions.R chore(local): add S3 migration and CRAN-source helper scripts 2026-06-14 13:02:48 +02:00
r-minor-helpers.R refactor: migrate package installation from pak to uvr (#147) 2026-07-31 12:19:26 +00:00
rebuild-missing-helpers.R feat(rebuild): shard the weekly rebuild and make each shard resumable (#163) 2026-08-12 08:30:29 +00:00
rebuild-missing.R feat(rebuild): shard the weekly rebuild and make each shard resumable (#163) 2026-08-12 08:30:29 +00:00
repair-built-stamp.R fix(index): add a slot repair for a broken Built stamp and retire alpine 3.21 (#150) 2026-08-07 09:15:04 +00:00
test-package-loading.R refactor: migrate package installation from pak to uvr (#147) 2026-07-31 12:19:26 +00:00
trial-build-patch.R fix(local): make trial-build-patch.R detect non-throwing build failures (#134) 2026-07-18 08:37:04 +00:00
trial-build-registry.R fix(local): make the trial-build gate detect non-throwing build failures (#130) 2026-07-16 08:24:03 +00:00
uvr-install.sh fix(rebuild): harden split workflow setup (#164) 2026-08-13 13:38:28 +00:00
validate-patches.R feat(local): auto-propose registry patches and track the feedback loop (#117) 2026-07-14 15:03:24 +00:00
weekly-missing-binaries-audit.R fix(audit): count a source fallback as a missing binary (#157) 2026-08-09 10:37:41 +00:00