v1.6.0 gem missing files

When I run 1.6.0, I get this error:

node:internal/modules/cjs/loader:927
  throw err;
  ^

Error: Cannot find module './package.json'
Require stack:
- /usr/local/bundle/gems/prettier-1.6.0/node_modules/prettier/bin-prettier.js
    at Function.Module._resolveFilename (node:internal/modules/cjs/loader:924:15)
    at Function.Module._load (node:internal/modules/cjs/loader:769:27)
    at Module.require (node:internal/modules/cjs/loader:996:19)
    at require (node:internal/modules/cjs/helpers:92:18)
    at Object.<anonymous> (/usr/local/bundle/gems/prettier-1.6.0/node_modules/prettier/bin-prettier.js:24:19)
    at Module._compile (node:internal/modules/cjs/loader:1092:14)
    at Object.Module._extensions..js (node:internal/modules/cjs/loader:1121:10)
    at Module.load (node:internal/modules/cjs/loader:972:32)
    at Function.Module._load (node:internal/modules/cjs/loader:813:14)
    at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:76:12) {
  code: 'MODULE_NOT_FOUND',
  requireStack: [
    '/usr/local/bundle/gems/prettier-1.6.0/node_modules/prettier/bin-prettier.js'
  ]

Key bit: /usr/local/bundle/gems/prettier-1.6.0/node_modules/prettier/bin-prettier.js is trying to load ./package.json.

I'm not 100% confident on how relative requires work, but I think that means it wants /usr/local/bundle/gems/prettier-1.6.0/node_modules/prettier/package.json.

Which is not there:

% gem contents prettier
<snip>
/usr/local/bundle/gems/prettier-1.6.0/node_modules/prettier/bin-prettier.js
/usr/local/bundle/gems/prettier-1.6.0/node_modules/prettier/index.js
/usr/local/bundle/gems/prettier-1.6.0/node_modules/prettier/parser-angular.js
/usr/local/bundle/gems/prettier-1.6.0/node_modules/prettier/parser-babel.js
/usr/local/bundle/gems/prettier-1.6.0/node_modules/prettier/parser-espree.js
/usr/local/bundle/gems/prettier-1.6.0/node_modules/prettier/parser-flow.js
/usr/local/bundle/gems/prettier-1.6.0/node_modules/prettier/parser-glimmer.js
/usr/local/bundle/gems/prettier-1.6.0/node_modules/prettier/parser-graphql.js
/usr/local/bundle/gems/prettier-1.6.0/node_modules/prettier/parser-html.js
/usr/local/bundle/gems/prettier-1.6.0/node_modules/prettier/parser-markdown.js
/usr/local/bundle/gems/prettier-1.6.0/node_modules/prettier/parser-meriyah.js
/usr/local/bundle/gems/prettier-1.6.0/node_modules/prettier/parser-postcss.js
/usr/local/bundle/gems/prettier-1.6.0/node_modules/prettier/parser-typescript.js
/usr/local/bundle/gems/prettier-1.6.0/node_modules/prettier/parser-yaml.js
/usr/local/bundle/gems/prettier-1.6.0/node_modules/prettier/third-party.js
<snip>

If I understand the gemspec, you intend to build the node_modules stuff locally then include them:

  spec.files =
    Dir.chdir(__dir__) do
      %w[LICENSE bin/console package.json rubocop.yml] +
        Dir['{{exe,lib,src}/**/*,*.md}'] +
        Dir[
          'node_modules/prettier/{index,bin-prettier,third-party,parser-*}.js'
        ]
    end

And this doesn't appear to be including everything it needs.

I've managed to hack a random package.json into the tree, but I have no idea if it would get things functional because I just run into another missing file (doc.js).

prettier / plugin-ruby

v1.6.0 gem missing files #916