AR02.2 — dnf-history-undo smoke (dnf delegation skip-scaffold)#38
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Mirror of AR02.1 with dnf instead of apt. Activates on a runner with dnf installed; skips cleanly on Debian-family (current AR00 runner). Unlike AR02.1+AR02.5 mutual-exclusion, AR02.2 has no synthesis counterpart on the same runner -- dnf's history verb has always existed. Load-bearing assertion: post-undo `dnf history --reverse` shows an undone/rollback/reverted entry referencing the install. End-state alone wouldn't distinguish delegation from synthesis.
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Summary
AR02.2 deliverable:
tests/smoke/dnf-history-undo-linux.sh— validates that on a Fedora-family runner,shit undodispatches todnf history undo <id>instead of synthesizingdnf remove. Mirrors AR02.1's structure with dnf substituted for apt.Skip behavior (current runner)
AR00 self-hosted runner is Debian-family → no
dnf→ smoke skips cleanly. Tracked for un-skip work in AR10.7 (already documented in this PR's parent doc). Unlike AR02.1+AR02.5 mutual-exclusion, AR02.2 has no synthesis counterpart on the same runner — dnf has always had its history verb, so the runner choice is binary: dnf present (delegation runs) or absent (skip entirely).Load-bearing assertion
Post-undo
dnf history --reverse | head -30must containundone | rollback | reverted— confirmsdnf history undo(delegation) ran, notdnf remove(synthesis). End-state alone is necessary-but-not-sufficient. Same shape as AR02.1'sapt historypost-undo check.Test plan
bash -nparse cleandnf-history-undo smoke (AR02.2)CI job: SKIP on Debian-family (current runner)