SyntaxError: Unexpected token

[teto]

Hi,

I am trying to package this plugin for nixos. I don't know much about node and I believe it's not that well supported on nixos so don't hesitate to be verbose in your explanation.
:MarkdownPreview fails with

|| pkg/prelude/bootstrap.js:130
|| {"mode":33188,"size":3132,"isFileValue":true,"isDirectoryValue":false}["supports-colors.js"]{"mode":16877,"size":0,"isFileValue":false,"isDirectoryValue":true}["trap.js","zalgo.js"]{"mode":16877,"size":0,"isFileValue":false,"isDirectoryValue":true}["america.js","zebra.js","rainbow.js","random.js"]{"mode":16877,"size":0,"isFileValue":false,"isDirectoryValue":true}["package.json","index.js","HISTORY.md","LICENSE","README.md","db.json"]{"mode":16877,"size":0,"isFileValue":false,"isDirectoryValue":true}["charset.js","encoding.js","language.js","mediaType.js"]{"mode":16877,"size":0,"isFileValue":false,"isDirectoryValue":true}["isarray"]{"mode":16877,"size":0,"isFileValue":false,"isDirectoryValue":true}["package.json","index.js"]{"mode":16877,"size":0,"isFileValue":false,"isDirectoryValue":true}["isarray"]{"mode":16877,"size":0,"isFileValue":false,"isDirectoryValue":true}["supports-color","has-flag"]{"mode":16877,"size":0,"isFileValue":false,"isDirectoryValue":true}["streams"]{"mode":
|| SyntaxError: Unexpected token :
||     at new Script (vm.js:75:7)
||     at readPrelude (internal/bootstrap/node.js:175:17)
||     at internal/bootstrap/node.js:182:22
||     at internal/bootstrap/node.js:189:8
||     at startup (internal/bootstrap/node.js:190:6)
||     at bootstrapNodeJSCore (internal/bootstrap/node.js:608:3)

some checkhealth

health#mkdp#check
========================================================================
  - INFO: Platform: linux
  - INFO: Nvim Version: NVIM v0.5.0-dev
  - INFO: Pre build: /nix/store/l7izi3v63vp0vr16aq5s8msbqyhxdgb6-vimplugin-markdown-preview-nvim-2020-03-26/share/vim-plugins/markdown-preview-nvim/app/bin/markdown-preview-linux
  - INFO: Pre build version: pkg/prelude/bootstrap.js:130
  - OK: Using pre build

## Node.js provider (optional)
  - INFO: Node.js: v10.19.0
  - INFO: Nvim node.js host: /nix/store/h6dn0a2ap5k0nlfjwfkakhiagxrzjbai-node_neovim-4.8.0/bin/neovim-node-host
  - OK: Latest "neovim" npm/yarn package is installed: 4.8.0

Might be related #118

[iamcco]

Seems the pre build bundle by PKG is not support with your system. Use nodejs and source code instead.

[teto]

I see, i will look for another strqtegy, I thought it could be a node version/pkg mismatch

[epeery]

@teto Did you ever manage to get the derivation working?

[teto]

nope, I've been using NixOS/nixpkgs#84213 instead.

My WIP derivation was

  markdown-preview-nvim = let
    version = "0.0.9";
    index_js = fetchzip {
        # TODO fix linux/macos
        url = "https://github.com/iamcco/markdown-preview.nvim/releases/download/v${version}/markdown-preview-linux.tar.gz";
        sha256 = "0lxk8h4q64g21ywgnfq2hl431ap14kq4hxlacfyhz860jll3qf0j";
      };
    nodePackages = import ./nodepkgs.nix {
      inherit (prev) pkgs;
    #   inherit (prev.stdenv.hostPlatform) system;
    };
      # node2nix ./package.json
  in prev.markdown-preview-nvim.overrideAttrs(old: {
    # you still need to enable the node js provider in your nvim config
    # TODO fix folder
    buildInputs = (old.buildInputs or []) ++ [ autoPatchelfHook glibc pkgs.gcc-unwrapped.lib ] ++ (with nodePackages; [

    ]);

    # first it checks if file is
    # TODO use install -D
      # mkdir -p $out/share/vim-plugins/coc-nvim/app
      # ${glibc.out}/lib/ld-linux-x86-64.so.2
      # --set-interpreter $NIX_CC/nix-support/dynamic-linker
    #       patchelf  $out/share/vim-plugins/markdown-preview-nvim/app/bin/markdown-preview-linux
    postInstall = ''
      set -x

      mkdir -p $out/share/vim-plugins/markdown-preview-nvim/app/bin
      cp ${index_js}/markdown-preview-linux $out/share/vim-plugins/markdown-preview-nvim/app/bin

    '';

  });

[epeery]

I attempted to compile the binary on my end with yarn run build but it seems like PKG doesn't play well with NixOS

> [email protected]
> Fetching base Node.js binaries to PKG_CACHE_PATH
  fetched-v10.17.0-linux-x64   [====================] 100%
  fetched-v10.17.0-macos-x64   [====================] 100%
  fetched-v10.17.0-win-x64     [====================] 100%
> Warning Failed to make bytecode node10-x64 for file /snapshot/markdown-preview.nvim/app/index.js error (write EPIPE)

I also found this issue in the PKG repo that seems similar to ours.

vercel/pkg#321

[iclanzan]

I took a stab at packaging this for NixOS:
NixOS/nixpkgs#97781