m3ta-chiron
c22cb5f3a7
n8n >= 2.37.0 demands pnpm >= 11.22.0 via engines.pnpm and serialises patchedDependencies as plain scalars in pnpm-lock.yaml (same lockfileVersion '9.0'), which pnpm 10 cannot install. The pinned nixpkgs only ships pnpm_11 11.17.0, so: - build with pnpm_11 + fetcherVersion 4 and relax the engines.pnpm gate in package.json (relaxPnpmEngine) for both fetchPnpmDeps and the main build; swap pnpm_10 -> pnpm_11 in nativeBuildInputs - drop the workaround once nixpkgs ships pnpm >= 11.22 update.sh: detect ERR_PNPM_UNSUPPORTED_ENGINE / ERR_PNPM_LOCKFILE_CONFIG_MISMATCH with actionable hints, sync tests/n8n-overlay-test.nix expectations (checks were stale at 2.32.6), guard against leftover fake-hash sentinels, and run from the repo root so the relative nix --expr paths resolve. Verified: n8n-overlay check green, full n8n 2.37.9 build green.
75 lines
3.1 KiB
Nix
75 lines
3.1 KiB
Nix
{prev}: let
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# n8n >= 2.32 replaced the sheetjs-CDN `xlsx@0.20.2` tarball (which lacked an
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# integrity checksum and had to be patched into pnpm-lock.yaml) with the
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# regular npm package `@e965/xlsx@0.20.3`, which already carries an integrity
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# field. The old lockfile-integrity workaround is therefore obsolete and has
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# been removed.
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#
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# n8n >= 2.37.0 demands pnpm >= 11.22.0 via `engines.pnpm`, but the pinned
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# nixpkgs only ships pnpm_10 (10.34.5) and pnpm_11 (11.17.0) — both too old.
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# pnpm enforces that gate for ITSELF regardless of `engine-strict`, so both
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# fetchPnpmDeps and the main build die with ERR_PNPM_UNSUPPORTED_ENGINE
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# before any hash mismatch is even reached. Additionally n8n's lockfile,
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# while still declaring lockfileVersion '9.0', now serialises
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# patchedDependencies as plain `name@version: hash` scalars (no `path:`
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# mapping), which pnpm 10 cannot parse (ERR_PNPM_LOCKFILE_CONFIG_MISMATCH).
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# We therefore build with pnpm_11 + fetcherVersion 4 and relax the engine
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# gate in package.json. Drop the sed once nixpkgs ships pnpm >= 11.22 and
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# this overlay's nixpkgs pin has caught up.
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relaxPnpmEngine = ''
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sed -i -E 's/"pnpm": *"[^"]*"/"pnpm": "*"/' package.json
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'';
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in
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prev.n8n.overrideAttrs (finalAttrs: previousAttrs: {
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version = "2.37.9";
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src = prev.fetchFromGitHub {
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owner = "n8n-io";
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repo = "n8n";
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tag = "n8n@${finalAttrs.version}";
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hash = "sha256-DFoXCtn+rM69ISKVV2aet8LfGCOsN29yuyYOpz0f71U=";
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};
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pnpmDeps = prev.fetchPnpmDeps {
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inherit (finalAttrs) pname version src;
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pnpm = prev.pnpm_11;
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fetcherVersion = 4;
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postPatch = relaxPnpmEngine;
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hash = "sha256-4SFl0JD4iQc4tQFtJvNWkYCVyT6sj7+id/BrJEaTl8E=";
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};
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postPatch = (previousAttrs.postPatch or "") + relaxPnpmEngine;
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# Swap pnpm_10 -> pnpm_11 from the inherited nativeBuildInputs: upstream
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# n8n calls pnpm directly during the build (install/build/prune) and pnpm 10
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# cannot parse the pnpm-11 lockfile. The top-level pnpmConfigHook stays as
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# is — it discovers the fetcher version from pnpmDeps' .fetcher-version.
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nativeBuildInputs = builtins.map (x:
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if (x.outPath or null) == prev.pnpm_10.outPath
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then prev.pnpm_11
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else x)
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previousAttrs.nativeBuildInputs;
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preBuild =
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(previousAttrs.preBuild or "")
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+ ''
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if [ ! -e node_modules/sass-embedded ] && [ -e node_modules/.pnpm/node_modules/sass-embedded ]; then
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ln -s .pnpm/node_modules/sass-embedded node_modules/sass-embedded
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fi
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if [ ! -e node_modules/sqlite3 ] && [ -e node_modules/.pnpm/node_modules/sqlite3 ]; then
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ln -s .pnpm/node_modules/sqlite3 node_modules/sqlite3
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fi
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'';
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# Self-contained update script (./update.sh) — fetches latest stable
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# release from n8n-io/n8n, recomputes both src and pnpmDeps hashes.
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# The CI workflow in .gitea/workflows/nix-update.yml discovers and runs it.
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passthru = (previousAttrs.passthru or {}) // {updateScript = ./update.sh;};
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meta =
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previousAttrs.meta
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// {
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changelog = "https://github.com/n8n-io/n8n/releases/tag/n8n@${finalAttrs.version}";
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};
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})
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