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fix(ci): create the profile dir so macOS nix prune keeps the toolchain warm

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The prune step's profile path $HOME/.cache/rdbms-ci/toolchain had no
parent dir, so `nix develop --profile` errored ("cannot read directory")
and — swallowed by `|| true` — never created the profile/gc-root. With
nothing rooting the toolchain, nix-collect-garbage deleted the whole
closure every run (~3.8 GiB re-downloaded each dispatch; confirmed in the
run-74 log). Add `mkdir -p` for the parent and drop the `|| true` on the
profile realization so a future breakage fails loudly. The VM stays
bounded as before, but the toolchain now persists across runs.

release-macos.yaml is workflow_dispatch (runs from main's definition), so
this takes effect on the next dispatch — the already-published v0.2.0
macOS binaries are unaffected.
This commit is contained in:
claude@clouddev1
2026-06-18 21:24:34 +00:00
parent bd5be5ecc7
commit 3c87dbb391
1 changed files with 11 additions and 2 deletions
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.gitea/workflows/release-macos.yaml
+11 -2
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@@ -84,12 +84,21 @@ jobs:
# The runner wipes the workspace each run, so cargo target/ never # The runner wipes the workspace each run, so cargo target/ never
# accumulates. Bound the persistent nix store by generation: record the # accumulates. Bound the persistent nix store by generation: record the
# current devShell as a generation of a persistent profile (in $HOME), # current devShell as a generation of a persistent profile (in $HOME),
# keep the 2 newest, reclaim what older ones referenced. # keep the 2 newest, reclaim what older ones referenced — so the
# toolchain stays *warm* across runs and only stale generations are GC'd.
#
# The profile's parent dir MUST exist first, or `nix develop --profile`
# errors ("cannot read directory …") and the profile/gc-root is never
# created — which made `nix-collect-garbage` delete the whole toolchain
# closure every run (re-downloaded ~3.8 GiB each time; the retention was
# silently broken by the swallowed `|| true`). No `|| true` on the
# profile realization now: a future breakage should fail loudly.
if: always() if: always()
run: | run: |
echo "--- disk before ---"; df -h / | tail -1 echo "--- disk before ---"; df -h / | tail -1
P="$HOME/.cache/rdbms-ci/toolchain" P="$HOME/.cache/rdbms-ci/toolchain"
nix develop --profile "$P" -c true || true mkdir -p "$(dirname "$P")"
nix develop --profile "$P" -c true
nix-env -p "$P" --delete-generations +2 || true nix-env -p "$P" --delete-generations +2 || true
nix-collect-garbage || true nix-collect-garbage || true
echo "--- disk after ---"; df -h / | tail -1 echo "--- disk after ---"; df -h / | tail -1