build-cran-binaries/docs/superpowers/plans/2026-06-13-bincraft-r-minor-enhancements.md
pat-s d328f261d2
docs: implementation plans for R-minor-sensitive builds
Split into two sequenced plans: bincraft 4.2.0 enhancements (per-minor index +
classifier-driven process_cran_updates) and the pipeline integration (full +
iterative). Spec revised to classify at the orchestration layer instead of a
build_binary_package "auto" mode.
2026-06-13 19:10:55 +02:00

470 lines
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Markdown

# bincraft R-minor Enhancements Implementation Plan
> **For agentic workers:** REQUIRED SUB-SKILL: Use superpowers:subagent-driven-development (recommended) or superpowers:executing-plans to implement this plan task-by-task. Steps use checkbox (`- [ ]`) syntax for tracking.
**Goal:** Teach bincraft to (a) build/serve per-R-minor package indexes and (b) drive `process_cran_updates()` from the ABI classifier so only risky packages are built per R minor.
**Architecture:** Two additive, low-risk changes to the bincraft R package. `upload_package_index()` gains an `r_minor` argument so a per-minor slot (`…/contrib/<x.y>/`) gets its own `PACKAGES*`. `process_cran_updates()` gains `r_minor_detection`/`r_minor_sensitive_only` and classifies each candidate via `needs_per_minor_recompile()` (already in the package), passing a concrete `is_r_minor_sensitive` logical to the unchanged `build_binary_package()`.
**Tech Stack:** R package, `testthat` (3e) + `mockery` for tests, `roxygen2` for docs, `s3fs`/`cranlike` for the index. Repo: `https://codefloe.com/rpkgs/bincraft` (this plan is executed in a clone of that repo, NOT in build-cran-binaries).
**Pre-req:** PR #49 (ABI classifier) is already merged on `main`; `abi_classify()`, `needs_per_minor_recompile()`, `abi_risky_linking_deps()` are exported.
---
### Task 1: `package_index_remote_dir()` pure helper
**Files:**
- Modify: `R/package_index.R` (top of file, before `add_to_package_index`)
- Test: `tests/testthat/test-package_index.R` (new)
- [ ] **Step 1: Write the failing test**
```r
# tests/testthat/test-package_index.R
test_that("package_index_remote_dir builds the generic slot when r_minor is NULL", {
expect_identical(
package_index_remote_dir("bucket", "amd64", "alpine323"),
file.path("bucket", "amd64", "alpine323", "latest", "src", "contrib")
)
})
test_that("package_index_remote_dir appends the minor slot when r_minor is set", {
expect_identical(
package_index_remote_dir("bucket", "amd64", "alpine323", r_minor = "4.4"),
file.path("bucket", "amd64", "alpine323", "latest", "src", "contrib", "4.4")
)
})
```
- [ ] **Step 2: Run test to verify it fails**
Run: `R -q -e 'devtools::load_all("."); testthat::test_file("tests/testthat/test-package_index.R")'`
Expected: FAIL — `could not find function "package_index_remote_dir"`.
- [ ] **Step 3: Add the helper**
```r
# R/package_index.R — add near the top, above add_to_package_index()
#' Build the S3 remote contrib dir for a package index
#'
#' @param r_minor Optional `"major.minor"` string (e.g. `"4.4"`). When non-NULL
#' the path points at the per-minor slot.
#' @keywords internal
package_index_remote_dir <- function(s3_bucket, arch, codename, r_minor = NULL) {
base <- file.path(s3_bucket, arch, codename, "latest", "src", "contrib")
if (is.null(r_minor)) {
base
} else {
file.path(base, r_minor)
}
}
```
- [ ] **Step 4: Run test to verify it passes**
Run: `R -q -e 'devtools::load_all("."); testthat::test_file("tests/testthat/test-package_index.R")'`
Expected: PASS (2/2).
- [ ] **Step 5: Commit**
```bash
git add R/package_index.R tests/testthat/test-package_index.R
git commit -m "feat(index): add package_index_remote_dir helper for per-minor slots"
```
---
### Task 2: per-minor support in `upload_package_index()`
**Files:**
- Modify: `R/package_index.R` (`upload_package_index`, signature + the `remote_bin_dir` block at lines ~117-124; `add_to_package_index` for consistency)
- [ ] **Step 1: Add `r_minor` to the signature and use the helper**
In `upload_package_index()`, add `r_minor = NULL` to the argument list (after `arch = NULL`). Replace the inline `remote_bin_dir <- file.path(s3_bucket, arch, codename, "latest", "src", "contrib")` block with:
```r
remote_bin_dir <- package_index_remote_dir(s3_bucket, arch, codename, r_minor)
```
Do the same replacement in `add_to_package_index()` (it has the identical inline construction); add `r_minor = NULL` to its signature too.
- [ ] **Step 2: Add the roxygen param**
Above `upload_package_index` and `add_to_package_index`, add:
```r
#' @param r_minor Optional `"major.minor"` string. When set, the index is
#' written/read under the per-minor slot `…/contrib/<r_minor>/` instead of the
#' generic `…/contrib/` slot.
```
- [ ] **Step 3: Regenerate docs**
Run: `R -q -e 'devtools::document()'`
Expected: updated `man/upload_package_index.Rd`, `man/add_to_package_index.Rd`, no errors.
- [ ] **Step 4: Verify package still loads and existing tests pass**
Run: `R -q -e 'devtools::load_all("."); testthat::test_dir("tests/testthat")'`
Expected: PASS — no regressions; the new path test from Task 1 still green.
- [ ] **Step 5: Commit**
```bash
git add R/package_index.R man/
git commit -m "feat(index): upload/update PACKAGES for a per-minor slot via r_minor"
```
---
### Task 3: `classify_r_minor_sensitive()` internal helper
**Files:**
- Modify: `R/process_cran_updates.R` (add helper near the top)
- Test: `tests/testthat/test-process_cran_updates.R` (new)
- [ ] **Step 1: Write the failing test**
```r
# tests/testthat/test-process_cran_updates.R
test_that("classify_r_minor_sensitive returns TRUE for a risky package", {
skip_if_not_installed("mockery")
mockery::stub(classify_r_minor_sensitive, "clone_repository", function(pkg, tag, url, dest) {
dir.create(dest, recursive = TRUE, showWarnings = FALSE)
writeLines(
c("Package: dummy", "Version: 1.0", "NeedsCompilation: yes", "LinkingTo: Rcpp"),
file.path(dest, "DESCRIPTION")
)
dir.create(file.path(dest, "src"))
writeLines("// Rcpp glue", file.path(dest, "src", "x.cpp"))
})
expect_true(classify_r_minor_sensitive("dummy", "1.0", "https://github.com/cran"))
})
test_that("classify_r_minor_sensitive returns FALSE for a pure-r package", {
skip_if_not_installed("mockery")
mockery::stub(classify_r_minor_sensitive, "clone_repository", function(pkg, tag, url, dest) {
dir.create(dest, recursive = TRUE, showWarnings = FALSE)
writeLines(c("Package: dummy", "Version: 1.0", "NeedsCompilation: no"),
file.path(dest, "DESCRIPTION"))
})
expect_false(classify_r_minor_sensitive("dummy", "1.0", "https://github.com/cran"))
})
test_that("classify_r_minor_sensitive fails safe to TRUE on clone error", {
skip_if_not_installed("mockery")
mockery::stub(classify_r_minor_sensitive, "clone_repository", function(...) stop("boom"))
expect_true(classify_r_minor_sensitive("dummy", "1.0", "https://github.com/cran"))
})
```
- [ ] **Step 2: Run test to verify it fails**
Run: `R -q -e 'devtools::load_all("."); testthat::test_file("tests/testthat/test-process_cran_updates.R")'`
Expected: FAIL — `could not find function "classify_r_minor_sensitive"`.
- [ ] **Step 3: Add the helper**
```r
# R/process_cran_updates.R — add above process_cran_updates()
#' Classify a single CRAN package for R-minor sensitivity
#'
#' Clones the package source to a temp dir and runs
#' [needs_per_minor_recompile()]. Fails safe to `TRUE` (build per minor) if the
#' clone or classification errors, so a possibly-ABI-fragile binary is never
#' served from the cross-minor generic slot by mistake.
#' @keywords internal
classify_r_minor_sensitive <- function(
package_name,
tag,
source_org_url = "https://github.com/cran",
local_clone_dir = tempdir()
) {
dest <- file.path(
local_clone_dir,
sprintf("classify_%s_%s", package_name, tag)
)
on.exit(unlink(dest, recursive = TRUE, force = TRUE), add = TRUE)
tryCatch(
{
clone_repository(package_name, tag, source_org_url, dest)
isTRUE(as.logical(needs_per_minor_recompile(dest)))
},
error = function(e) {
log_warn(sprintf(
"{.fun classify_r_minor_sensitive}: failed for {.pkg %s} {.field %s}: %s. Treating as r-minor-sensitive.", # nolint
package_name,
tag,
conditionMessage(e)
))
TRUE
}
)
}
```
- [ ] **Step 4: Run test to verify it passes**
Run: `R -q -e 'devtools::load_all("."); testthat::test_file("tests/testthat/test-process_cran_updates.R")'`
Expected: PASS (3/3).
- [ ] **Step 5: Commit**
```bash
git add R/process_cran_updates.R tests/testthat/test-process_cran_updates.R
git commit -m "feat(updates): add classify_r_minor_sensitive helper"
```
---
### Task 4: wire classifier detection into `process_cran_updates()`
**Files:**
- Modify: `R/process_cran_updates.R` (`process_cran_updates` signature + the build loop at lines ~262-289)
- Modify: `tests/testthat/test-process_cran_updates.R` (add routing tests)
- [ ] **Step 1: Write the failing tests**
```r
# append to tests/testthat/test-process_cran_updates.R
test_that("classifier mode passes per-package is_r_minor_sensitive to build", {
skip_if_not_installed("mockery")
recorded <- list()
mockery::stub(process_cran_updates, "get_updated_cran_packages",
function(...) data.frame(name = c("riskypkg", "purepkg"),
version = c("1.0", "2.0"), stringsAsFactors = FALSE))
mockery::stub(process_cran_updates, "get_new_cran_packages",
function(...) data.frame(name = character(), version = character()))
mockery::stub(process_cran_updates, "tools::CRAN_package_db",
function(...) data.frame(Package = character(), OS_type = character()))
mockery::stub(process_cran_updates, "classify_r_minor_sensitive",
function(name, tag, ...) name == "riskypkg")
mockery::stub(process_cran_updates, "build_binary_package",
function(name, tag, ..., is_r_minor_sensitive) {
recorded[[name]] <<- is_r_minor_sensitive
invisible(TRUE)
})
process_cran_updates(
platform = "alpine-323", process_removed = FALSE,
r_minor_detection = "classifier",
s3_endpoint = "x", s3_region = "x", s3_bucket = "x"
)
expect_true(recorded[["riskypkg"]])
expect_false(recorded[["purepkg"]])
})
test_that("r_minor_sensitive_only drops non-risky candidates", {
skip_if_not_installed("mockery")
built <- character()
mockery::stub(process_cran_updates, "get_updated_cran_packages",
function(...) data.frame(name = c("riskypkg", "purepkg"),
version = c("1.0", "2.0"), stringsAsFactors = FALSE))
mockery::stub(process_cran_updates, "get_new_cran_packages",
function(...) data.frame(name = character(), version = character()))
mockery::stub(process_cran_updates, "tools::CRAN_package_db",
function(...) data.frame(Package = character(), OS_type = character()))
mockery::stub(process_cran_updates, "classify_r_minor_sensitive",
function(name, tag, ...) name == "riskypkg")
mockery::stub(process_cran_updates, "build_binary_package",
function(name, tag, ..., is_r_minor_sensitive) { built <<- c(built, name); invisible(TRUE) })
process_cran_updates(
platform = "alpine-323", process_removed = FALSE,
r_minor_detection = "classifier", r_minor_sensitive_only = TRUE,
s3_endpoint = "x", s3_region = "x", s3_bucket = "x"
)
expect_identical(built, "riskypkg")
})
```
- [ ] **Step 2: Run tests to verify they fail**
Run: `R -q -e 'devtools::load_all("."); testthat::test_file("tests/testthat/test-process_cran_updates.R")'`
Expected: FAIL — `unused argument (r_minor_detection = ...)`.
- [ ] **Step 3: Add the parameters**
In the `process_cran_updates()` signature, after `filter_r_minor_sensitive = FALSE,` add:
```r
r_minor_detection = c("none", "issue", "classifier"),
r_minor_sensitive_only = FALSE,
```
Immediately after the three `stop()` validation lines at the top of the body, add:
```r
r_minor_detection <- match.arg(r_minor_detection)
# back-compat: the old boolean maps onto the issue-list path
if (isTRUE(filter_r_minor_sensitive) && r_minor_detection == "none") {
r_minor_detection <- "issue"
}
```
- [ ] **Step 4: Replace the issue-filter gate**
The existing block reads `if (filter_r_minor_sensitive) { all_pkgs <- get_r_minor_sensitive_packages(...) }`. Change its condition to:
```r
if (r_minor_detection == "issue") {
all_pkgs <- get_r_minor_sensitive_packages(
r_minor_packages_forge_type,
r_minor_packages_issue_url,
interval,
updated_packages = updated_pkgs,
new_packages = new_pkgs
)
}
```
Also change the two later `if (filter_r_minor_sensitive)` log branches to `if (r_minor_detection != "none")`.
- [ ] **Step 5: Replace the build loop**
Replace the `purrr::walk2(all_pkgs$name, all_pkgs$version, ~ { build_binary_package(... is_r_minor_sensitive = filter_r_minor_sensitive ...) })` block with:
```r
if (nrow(all_pkgs) > 0L) {
sensitive <- switch(
r_minor_detection,
classifier = vapply(
seq_len(nrow(all_pkgs)),
function(i) {
classify_r_minor_sensitive(
all_pkgs$name[i],
all_pkgs$version[i],
local_clone_dir = local_clone_dir
)
},
logical(1L)
),
issue = rep(TRUE, nrow(all_pkgs)),
none = rep(FALSE, nrow(all_pkgs))
)
if (isTRUE(r_minor_sensitive_only)) {
all_pkgs <- all_pkgs[sensitive, , drop = FALSE]
sensitive <- sensitive[sensitive]
}
purrr::pwalk(
list(all_pkgs$name, all_pkgs$version, sensitive),
function(.name, .version, .sensitive) {
build_binary_package(
.name,
.version,
platform = platform,
upload = upload,
archive = archive,
force = force,
store_build_metadata = store_build_metadata,
s3_endpoint = s3_endpoint,
s3_bucket = s3_bucket,
s3_region = s3_region,
s3_access_key_id = s3_access_key_id,
s3_secret_access_key = s3_secret_access_key,
is_r_minor_sensitive = .sensitive,
metadata_db_type = metadata_db_type,
metadata_db_host = metadata_db_host,
metadata_db_name = metadata_db_name,
metadata_db_table = metadata_db_table,
metadata_db_port = metadata_db_port,
metadata_db_user = metadata_db_user,
metadata_db_password = metadata_db_password,
metadata_db_sslmode = metadata_db_sslmode
)
}
)
} else {
log_info("No packages to process after filtering Windows-only packages")
}
```
- [ ] **Step 6: Run tests to verify they pass**
Run: `R -q -e 'devtools::load_all("."); testthat::test_file("tests/testthat/test-process_cran_updates.R")'`
Expected: PASS (5/5 — 3 from Task 3 + 2 new).
- [ ] **Step 7: Commit**
```bash
git add R/process_cran_updates.R tests/testthat/test-process_cran_updates.R
git commit -m "feat(updates): classifier-driven per-package r-minor routing + sensitive-only pass"
```
---
### Task 5: docs, roxygen params, version bump, NEWS
**Files:**
- Create: `man-roxygen/param-r_minor_detection.R`, `man-roxygen/param-r_minor_sensitive_only.R`
- Modify: `R/process_cran_updates.R` (roxygen `@template` lines), `DESCRIPTION`, `NEWS.md`
- [ ] **Step 1: Add the man templates**
```r
# man-roxygen/param-r_minor_detection.R
#' @param r_minor_detection How to decide which packages are R-minor-sensitive.
#' `"none"` (default) builds everything into the generic slot. `"issue"` uses
#' the curated tracking issue (the legacy `filter_r_minor_sensitive` path).
#' `"classifier"` classifies each candidate via [needs_per_minor_recompile()]
#' and routes only `risky` packages to the per-minor slot.
```
```r
# man-roxygen/param-r_minor_sensitive_only.R
#' @param r_minor_sensitive_only When `TRUE`, only R-minor-sensitive packages are
#' built (used for the additional per-minor passes under non-primary R versions).
```
- [ ] **Step 2: Reference the templates**
In the roxygen block above `process_cran_updates`, add:
```r
#' @template param-r_minor_detection
#' @template param-r_minor_sensitive_only
```
- [ ] **Step 3: Bump version and NEWS**
In `DESCRIPTION` set `Version: 4.2.0`. Add to the top of `NEWS.md`:
```markdown
# bincraft 4.2.0
* `process_cran_updates()` gains `r_minor_detection` (`"none"`/`"issue"`/`"classifier"`)
and `r_minor_sensitive_only`, classifying each candidate via the ABI classifier and
routing only `risky` packages to per-minor slots.
* `upload_package_index()` / `add_to_package_index()` gain an `r_minor` argument to
write/serve a per-minor `PACKAGES*` index under `…/contrib/<x.y>/`.
```
- [ ] **Step 4: Regenerate docs and run full check**
Run: `R -q -e 'devtools::document()'`
Run: `R -q -e 'devtools::test()'`
Expected: docs regenerate clean; all tests PASS.
- [ ] **Step 5: Commit, push, open PR**
```bash
git add DESCRIPTION NEWS.md man-roxygen/ man/ R/process_cran_updates.R
git commit -m "docs(release): bincraft 4.2.0 — per-minor index + classifier-driven updates"
git push -u origin <branch>
fj -H codefloe.com pr create --base main --head <branch> --body "<summary>" "feat: per-minor index + classifier-driven r-minor builds (4.2.0)"
```
---
## Self-Review
- **Spec coverage:** §"Required bincraft enhancements" item 1 (process_cran_updates) → Tasks 3-5; item 2 (upload_package_index per-minor) → Tasks 1-2. `build_binary_package` unchanged per the spec — no task, correct.
- **Type consistency:** helper named `package_index_remote_dir` (Tasks 1-2), `classify_r_minor_sensitive` (Tasks 3-4) consistently; params `r_minor_detection`/`r_minor_sensitive_only`/`r_minor` consistent across signature, tests, and docs.
- **Placeholders:** none — every code/edit step shows the actual code; `<branch>`/`<summary>` in the final push step are deliberate operator inputs.
- **Release dependency:** the pipeline plan pins bincraft `4.2.0`, matching the bump here.