Padreug
f589b1c078
cachix push by default only walks the RUNTIME closure of the paths it gets on stdin. Build-time inputs like fetchPnpmDeps tarballs are consumed during a build and then thrown away — never referenced from the final output — so they never make it into the cache. This bites when an ATM has the cached runtime output for an older version of bitspire-atm-app but then needs to rebuild it (e.g. because a flake.nix change shifts the toplevel hash, cascading through to a new app derivation). Sintra OOM-killed itself today (2026-05-25) doing exactly this: 1.4 GB of pnpm install + node-headers on 1 GB of RAM. Fix: query the .drv that produced each output path, then walk `nix-store -qR --include-outputs <drv>` — that gives the full build-time closure (every path needed to realize the build, including fixed-output fetchers like fetchPnpmDeps). cachix push then uploads all of them. Cost: somewhat larger pushes, but the dev box has the headroom. Benefit: ATM nixos-upgrade never falls into the rebuild-from-source trap. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
88 lines
3.5 KiB
Bash
Executable file
88 lines
3.5 KiB
Bash
Executable file
#!/usr/bin/env bash
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# Build the douro-installed system closure and push all paths to cachix.
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#
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# Run from your dev machine (Arch) after pushing code to the repo.
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# Requires: nix (Determinate), cachix (authenticated via ~/.config/cachix/cachix.dhall)
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#
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# Usage:
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# ./deploy/push-cache.sh # build + push douro-installed (default)
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# ./deploy/push-cache.sh sintra # build + push sintra-installed toplevel
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# ./deploy/push-cache.sh batm3 # build + push batm3-installed toplevel
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# ./deploy/push-cache.sh douro-live # push the live-ISO variant (one-off flash use)
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# ./deploy/push-cache.sh sintra-live # same, for sintra
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# ./deploy/push-cache.sh tejo # tejo currently lives in iso form only
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# ./deploy/push-cache.sh all # build + push every installed + live target
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#
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# Bare `<model>` targets push the INSTALLED system the auto-upgrade pulls
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# from `?ref=<branch>#<model>-installed`. `<model>-live` targets push the
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# bootable ISO, used only for fresh USB-flashed installs.
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set -euo pipefail
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CACHE="aiolabs"
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SCRIPT_DIR="$(cd "$(dirname "$0")/.." && pwd)"
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cd "$SCRIPT_DIR"
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target="${1:-douro}"
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build_and_push() {
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local name="$1"
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local attr="$2"
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echo "==> Building $name ($attr)..."
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local out_paths
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out_paths=$(nix build ".#$attr" --no-link --print-out-paths)
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# Walk the BUILD-TIME closure (not just runtime) so derivations like
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# `bitspire-atm-app-pnpm-deps` (fetchPnpmDeps tarball, consumed only
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# during the app's build and discarded) land in the cache. Without
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# this, ATMs that need to rebuild the app from source — i.e. any time
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# `cachix push` already-cached the runtime output but a downstream
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# eval needs a new toplevel that re-derives the app — would OOM-kill
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# themselves trying to run `pnpm install` locally on 1 GB of RAM.
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# OOM caught on Sintra 2026-05-25 with the 1.4 GB pnpm-deps build.
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local drvs
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drvs=$(echo "$out_paths" | xargs -r -n1 nix-store -q --deriver)
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echo "$drvs" | xargs -r nix-store -qR --include-outputs | cachix push "$CACHE"
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echo "==> Pushed $name (runtime + build-time closure) to $CACHE.cachix.org"
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}
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case "$target" in
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douro)
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build_and_push "douro-installed toplevel" "nixosConfigurations.douro-installed.config.system.build.toplevel"
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;;
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douro-live)
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build_and_push "douro live ISO" "iso-douro"
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;;
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tejo)
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build_and_push "tejo live ISO" "iso-tejo"
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;;
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sintra)
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build_and_push "sintra-installed toplevel" "nixosConfigurations.sintra-installed.config.system.build.toplevel"
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;;
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sintra-live)
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build_and_push "sintra live ISO" "iso-sintra"
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;;
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batm3)
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build_and_push "batm3-installed toplevel" "nixosConfigurations.batm3-installed.config.system.build.toplevel"
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;;
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batm3-live)
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build_and_push "batm3 live ISO" "iso-batm3"
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;;
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all)
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build_and_push "douro-installed toplevel" "nixosConfigurations.douro-installed.config.system.build.toplevel"
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build_and_push "sintra-installed toplevel" "nixosConfigurations.sintra-installed.config.system.build.toplevel"
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build_and_push "batm3-installed toplevel" "nixosConfigurations.batm3-installed.config.system.build.toplevel"
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build_and_push "douro live ISO" "iso-douro"
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build_and_push "tejo live ISO" "iso-tejo"
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build_and_push "sintra live ISO" "iso-sintra"
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build_and_push "batm3 live ISO" "iso-batm3"
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;;
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*)
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echo "Usage: $0 [douro|douro-live|tejo|sintra|sintra-live|batm3|batm3-live|all]"
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exit 1
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;;
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esac
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echo ""
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echo "Done. ATMs will pull binaries from https://$CACHE.cachix.org on next upgrade."
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