nixpkgs/overlays/mods/n8n.nix

{prev}: let
  # n8n >= 2.32 replaced the sheetjs-CDN `xlsx@0.20.2` tarball (which lacked an
  # integrity checksum and had to be patched into pnpm-lock.yaml) with the
  # regular npm package `@e965/xlsx@0.20.3`, which already carries an integrity
  # field. The old lockfile-integrity workaround is therefore obsolete and has
  # been removed.
in
  prev.n8n.overrideAttrs (finalAttrs: previousAttrs: {
    version = "2.32.7";

    src = prev.fetchFromGitHub {
      owner = "n8n-io";
      repo = "n8n";
      tag = "n8n@${finalAttrs.version}";
      hash = "sha256-Lyz0k5LD+lVPt5yeNUm08p9x2xqRIqW4AsMp3IGZGdc=";
    };

    pnpmDeps = prev.fetchPnpmDeps {
      inherit (finalAttrs) pname version src;
      pnpm = prev.pnpm_10;
      fetcherVersion = 3;
      hash = "sha256-QzUJCF+VIku9/HrmiUR9FNCU3MlYtyKOILZjFNXvN8U=";
    };

    preBuild =
      (previousAttrs.preBuild or "")
      + ''
        if [ ! -e node_modules/sass-embedded ] && [ -e node_modules/.pnpm/node_modules/sass-embedded ]; then
          ln -s .pnpm/node_modules/sass-embedded node_modules/sass-embedded
        fi
        if [ ! -e node_modules/sqlite3 ] && [ -e node_modules/.pnpm/node_modules/sqlite3 ]; then
          ln -s .pnpm/node_modules/sqlite3 node_modules/sqlite3
        fi
      '';

    # Self-contained update script (./update.sh) — fetches latest stable
    # release from n8n-io/n8n, recomputes both src and pnpmDeps hashes.
    # The CI workflow in .gitea/workflows/nix-update.yml discovers and runs it.
    passthru = (previousAttrs.passthru or {}) // {updateScript = ./update.sh;};

    meta =
      previousAttrs.meta
      // {
        changelog = "https://github.com/n8n-io/n8n/releases/tag/n8n@${finalAttrs.version}";
      };
  })