Extracts the cookbook_apply_patches function from
src/cook/script.rs and runs it against the real
kf6-karchive source + migration patch. Verifies the
end-to-end flow that C-7 step 2 relies on:
1. First apply: helper applies the patch via
`git apply` from inside ${COOKBOOK_SOURCE},
reports `applying 01-initial-migration.patch`
and `applied=1 skipped=0 failed=0`.
2. Idempotency: running the helper a second time
detects the patch is already applied via
`git apply --reverse --check` and reports
`already applied, skipping`.
3. Post-patch source state: the helper actually
modifies the source — verifies that
`ecm_install_po_files_as_qm` is now commented
out (line starts with `#`) in the source after
the helper runs.
4. 4-level path resolution: verifies that the
`${COOKBOOK_RECIPE}/../../../../local/patches/<name>`
path used in the recipe's [build].script
resolves to the actual patches dir
`local/patches/kf6-karchive`.
These tests use a real pristine/source/patch fixture
(not mocks) and run the actual cookbook helper
extracted from src/cook/script.rs. Any change to
the helper's behavior (path handling, idempotency
check, git apply flags) is caught by these tests.
Makefile:
- New `test-cookbook-apply-patches-e2e` target
- Added to `lint-build-system-all` aggregate
Total: 4 new tests, 164 Python tests total (160 + 4).
All 10 test files pass in <1s.
vasilito
e3e1faece6