`--version` is not working as expected if installed via npm

Issue

It’s using the package.json in the working directory…

Examples

Directory without package.json

elm-language-server -v
/home/user/.npm-global/lib/node_modules/@elm-tooling/elm-language-server/node_modules/web-tree-sitte
var Module=void 0!==Module?Module:{};!function(e,t){"function"==typeof define&&define.amd?define([],t):
ule.hasOwnProperty(e)&&(t[e]=Module[e]);Module.arguments=[],Module.thisProgram="./this.program",Module.
a="function"==typeof importScripts,i="object"==typeof process&&"function"==typeof require&&!r&&!a,n=!r&
,l||(l=require("path")),e=l.normalize(e),n=o.readFileSync(e),t?n:n.toString()},Module.readBinary=functi
gv.length>1&&(Module.thisProgram=process.argv[1]

Error: ENOENT: no such file or directory, open '/home/user/dotfiles/package.json'
    at Object.openSync (fs.js:447:3)
    at Object.readFileSync (fs.js:349:35)
    at Function.module.exports.sync (/home/user/.npm-global/lib/node_modules/@elm-tooling/elm-langua
    at getVersion (/home/user/.npm-global/lib/node_modules/@elm-tooling/elm-language-server/node_mod
    at Object.<anonymous> (/home/user/.npm-global/lib/node_modules/@elm-tooling/elm-language-server/
    at Module._compile (internal/modules/cjs/loader.js:776:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:787:10)
    at Module.load (internal/modules/cjs/loader.js:643:32)
    at Function.Module._load (internal/modules/cjs/loader.js:556:12)
    at Module.require (internal/modules/cjs/loader.js:683:19)))))

Directory with package.json

It shows the local version…

elm-language-server -v
1.0.0

Related code

https://github.com/elm-tooling/elm-language-server/blob/5a39e7159ecb710e13f2d04102dbbeb27d2b289f/src/index.ts#L18

Fixes

• Make the typescript import (disallowed by current config) of package.json work and replace dependency
• Copy current version into code or file in compile step
• Look for other dependencies that actually work as expected

[andys8]

If we add more args and help, we should probably use a args parser library. Current implementation feels hacky.

[razzeee]

Forget about that windows log, I somehow ended up calling the old haskell version of the server…