feat(full): per-package r-minor flag and --sensitive-only mode in build-all.R

local/tests/test-build-all-args.R

@@ -0,0 +1,13 @@
+source(file.path("..", "r-minor-helpers.R"))
+
+test_that("parse_build_args splits flags from positionals", {
+  a <- parse_build_args(c("--sensitive-only", "4", "2", "8"))
+  expect_true(a$sensitive_only)
+  expect_identical(a$split_into, 4L)
+  expect_identical(a$split_index, 2L)
+  expect_identical(a$ncpus, 8L)
+
+  b <- parse_build_args(c("4", "2", "8"))
+  expect_false(b$sensitive_only)
+  expect_identical(b$split_into, 4L)
+})