How to debug neovim lsp custom command - vue.js

I am attempting to get the volar vue language server to work in place of vetur for neovim's native lsp.
Using both lspconfig and lspinstall I was able to create a working custom install for sumneko_lua (unrelated but had to manually build due to some issues with the built-in :LspInstall lua). Below is that code duplicated and modified for an attempt at using this new vue server:
local vue_config = require'lspinstall/util'.extract_config('vuels')
vue_config.default_config.cmd = {'node', './node_modules/vscode-vue-languageservice/out/index.js', '--stdio'}
require'lspinstall/servers'.newvue = vim.tbl_extend('error', vue_config, {
install_script = [[
! test -f package.json && npm init -y --scope=lspinstall || true
npm install vscode-vue-languageservice#latest
]],
uninstall_script = nil
})
Running :LspInstall newvue installs properly, however :LspInfo shows this language server is attached to the buffer (of a .vue file) but not active. I believe the issue is with this path: ./node_modules/vscode-vue-languageservice/out/index.js. It exists, but may not be the correct entry point? The default vue ls simply has vls as the command because it provides a binary. Am I missing something in this package? I have yet to come across another language server without a single binary to pick out.
Thanks!

Can you try an absolute path to the out.js file? In my pretty elaborate config for a custom Volar install I'm using something just /home/myuser/dev/volar/packages/server/out/index.js (where the volar folder is just the whole volar cloned github repo). My full config is here
I don't think you can use relative paths like you did. I know you're assuming that the "./node_modules" means "workspace directory" but it's hard to tell in which directory nvim-lspconfig opens up those executables.
I have yet to come across another language server without a single binary to pick out.
Volar also provides a binary, it's volar-server (after running npm i -g #volar/server), it's just with a custom install (ie. alongside the real volar) you can't use it, because I assume you want to use your local install with custom code.
As for more indepth debugging/logging, you can check ~/.cache/nvim/lsp.log to see why the language server dies in detail.

Related

ES6 import and npm packages

Anyone got a link to documentation explaining exactly how ES6 import is supposed to work with npm packages (as opposed to javascript module files) ?
Also (and possibly related) a link to documentation on the use/significance of "module" as a top-level key in an npm package.json file ?
Eg. consider the following from juggle/resize-observer ;
package.json
{
...
"module": "lib/exports/resize-observer.js",
...
}
consumer javascript file
import { ResizeObserver } from '#juggle/resize-observer';
On the above import Chrome sends a request to the server for '#juggle/resize-observer' which is a directory..... so what happens next ? (I don't have a working instance of this and my server doesn't return anything yet as I don't know what it's supposed to / in what format ). Is this syntax only for use with some sort of build tool where it ultimately gets replaced with the actual file ?
I have looked at the npm site/googled and cannot find any relevant documentation.
UPDATE Still waiting for a link to relevant documentation (no relevant Google results at this time) but for anyone asking the same question: apparently you need your server to do "module resolution" . Alternatively you can use Snowpack or a bundler eg. Webpack.
Apparently npm/node packages are not packaged with browsers in mind or based on any W3C/Web Modules standard specification.
See here for module resolution info.
So at present to use an npm package in a browser you must do one of the following
use a bundler like webpack
use snowpack
use a CDN which resolves the module request
implement npm module resolution in your own server
Find the package entry point and use that in your ES6 import statement.
However, if the package's json "main" property changes in a subsequent update you
will need to update your code to reflect this.

Vue Material postinstall failed

So I've been working on a Vue.js project for couple times now, and I am facing a problem I've never seen before.
Trying to git pull the project on another computer, or even downloading the project as a zip file, when it's time to npm install, vue-material module fails and the whole thing cannot be run.
It goes this way, with vie-material :
vue-material#1.0.0 postinstall C:\<my_things>\node_modules\vue-material
sh build/git-hooks/install.sh
Then I see this :
/usr/bin/bash: build/git-hooks/install.sh: No such file or directory
Then the modules' tree shows in the terminal, and at the end, I can see all the errors related to vue-material, with this statement :
Tell the author that this fails on your system:
sh build/git-hooks/install.sh
By the way, I tried to crate a brand new Vue project, and tried to add vue-material inside, no problem, so it has to do with my project.
Obviously though, /usr/bin/bash does not exist, since I'm running Windows 10.
Any knowledge on npm's installing routine ? I'm out of solution to try...
Can you share your package.json file?
I had this same problem just now and found that NPM could possibly be installing the incorrect version. Where I had "^vue-material": "1.0.0-beta-7" NPM was installing version 1.0.0 instead of 1.0.0-beta-7. If you remove the ^ then it may work for you. This is where I found the answer that helped me.
https://github.com/vuematerial/vue-material/issues/1155
Well, after couple times figuring out what was wrong, I got this :
I tried to use yarn and it told me that my node version was too old (vue-material needed 7.0+ and my node was 6.9, or at least that is what yarn told me), so I got myself the 8.9.3 node.
After this I tried to use yarn again, and the error with that bash script showed again.... then I just tried to use npm install again, and it worked just fine...
I don't know about the bash script thing, but one thing to remember is to always check for node and npm's version when errors happend.... (and yarn looks very cool and simple imo ^^).
You kinda made me think about a version problem though, I got you that ! :D
Problem solved....

Installing kdesu on NixOS

When setting advanced properties on a program/link to start as another user it is throwing the error:
Sorry - Plasma
KDEInit could not launch 'kdesu':
Could not open library 'libkdeinit5_kdesu'.
Cannot load library /run/current-system/sw/lib/libkdeinit5_kdesu: (/run/current-system/sw/lib/libkdeinit5_kdesu.so: cannot open shared object file: No such file or directory)
I tried to install kdesu using:
[root#nixos:~]# nix-env -qaP kdesu
nixos.kdeFrameworks.kdesu kdesu-5.36.0
[root#nixos:~]# nix-env -iA nixos.kdeFrameworks.kdesu
replacing old ‘kdesu-5.36.0’
installing ‘kdesu-5.36.0’
building path(s) ‘/nix/store/2bn27h5drw0800gk5z2rmwfx78gqbbdc-user-environment’
created 2209 symlinks in user environment
[root#nixos:~]# kdesu
bash: kdesu: command not found
[root#nixos:~]# which kdesu
which: no kdesu in (/root/bin:/run/wrappers/bin:/etc/per-user-pkgs/root/bin:/root/.nix-profile/bin:/nix/var/nix/profiles/default/bin:/run/current-system/sw/bin)
I also tried installing nix-env -iA nixos.kde-cli-tools but that does not work either.
Any suggestions on how to get kdesu installed on NixOS?
As a general rule, unlike many distros on NixOS installing a library directly doesn't work as intended; the application that needs the library won't be able to find it. Instead, the package must declare all it's dependencies.
Packages which have optional dependencies tend to have a way to add them via configuration. You may want to try something like this in /etc/nixos/configuration.nix
services.xserver.desktopManager.plasma5.extraPackages = with kdeFrameworks;
[ kdesu
];
I'm glad to see that you filed an issue on Nixpkgs, because this is not a configuration issue but a packaging bug.
It looks like kdesu lives in some libexec dir that doesn't hasn't been added to your PATH. It belongs to the kde-cli-tools package. You can run it with
$(nix-build '<nixpkgs>' -A kde-cli-tools --no-out-link)/lib/libexec/kf5/kdesu
You can use the above as an alias to launch kdesu until the fix to the packaging bug arrives.

How to install flow type correctly for react native#0.46+?

I've googled many sites but cannot found a tutorial that actually works for react-native + flow type.
There was flow installation guide from react-native#0.22 document, but it's gone in react-native#0.46.
However, it comes up again in Running Tests and Contributing, I tested to run npm run flow but not working, and yet it doesn't say how to make it works. It's possibly been a missing part inside of react-native documentation.
What I need is to run flow correctly with react-native. Auto-check flow every time I reload the page with ⌘R would be the best.
I just finished covering half of our project by flow and we use RN 0.44.0.
The tricky part is: do you also want to know errors inside node_modules, someone says those errors are helpful.
Anyway, I disable the error in node_modules, and here is my .flowconfig:
[ignore]
<PROJECT_ROOT>/node_modules/.*
<PROJECT_ROOT>/flowLibs.js
.....
[include]
[libs]
./flowLibs.js
.....
[lints]
[options]
You should install flow first if you not setup correctly,
npm install --save-dev flow-bin
and also run this in you project root after install:
npm run flow init
If npm run flow init does not work, just add "flow": "flow" in npm scripts.
After init, put my .flowconfig in your project .flowconfig file.
Then create a js file flowLibs.js and if npm run flow check cause your any error like Module_Name. Required module not found
Write down code in flowLibs.js:
declare module 'Module_Name' { declare var exports: any; };
After that, you should be good to go with you project now.
BTW, don't forget add //#flow on the top of the file which you want to check type.
I found flowtype is built in with react-native#0.46+.
For react-native document, I think they should at least tell flowtype is already built in. And for the rest document ex: Testing Your Changes#flow, it won't work without flow-bin, they should mention that too.
To make flowtype of best use, I use it with Visual Studio Code.
Steps:
Install flow-bin globally, by npm i flow-bin -g.
Make sure your terminal is responsive to command flow.
Install vscode flow extension.
Set vscode workspace preference with "javascript.validate.enable": false, to disable default javascript validation, so flow validation can take place.
To access vscode preference, ALT+F,P,S for windows, ⌘+, for mac.
then you have flowtype installed with visual result with every key stroke:
Try this one:
Adding Flow to React Native
https://medium.com/react-native-training/getting-started-with-react-native-and-flow-d40f55746809
Hope this helps!

Load debug version of pre-built module via npm/webpack

There is a javascript library, pre-built and available on npm, that I wish to develop with/debug. In my case, it is openlayers.
In the classic way of requiring a javascript file and wanting to debug, one would just switch the script url from the production version to the debug version, ie:
to
However, when using webpack and then importing via npm:
import openlayers from 'openlayers'
Gets you the production distribution of the library, the same as the ol.js script from above.
On a side note, to stop webpack trying to parse a prebuilt library and throw a warning about that you must include something like this:
// Squash OL whinging
webpackConfig.module.noParse = [
/\/dist\/ol.*\.js/, // openlayers is pre-built
]
Back to the problem at hand: how can I conditionally load a different entry-point for a module prebuilt and imported like this?
Of course, I can do it in a hacky way. By going into the node_modules/openlayers/package.json and switching the browser field from
"browser": "dist/ol.js",
to
"browser": "dist/ol-debug.js",
Is there a way I can request a different entry point via webpack or by using a different import syntax? Do I first have to petition the library maintainers to update the browser field to allow different entry point hints to browsers, according to the spec? https://github.com/defunctzombie/package-browser-field-spec
Thoughts on a more effective way to make this happen? Yearning to be able to programmatically switch loading of the production and debug versions of a library based on env variables.
Webpack has configuration options for replacing a module into a different path: https://webpack.github.io/docs/configuration.html#resolve-alias
This resolves the openlayers import to use the debug version:
webpackConfig.resolve.alias: {
openlayers: 'openlayers/dist/ol-debug.js'
}
In my build system I have a function that takes the environment type and returns the matching webpackConfig. Based on the parameter I include the above snippet or not.
Full code: webpack-multi-config.js
I have two different (gulp-) tasks for development and production. For example the production task: webpackProduction.js
Line 1 imports the config script with production as type.
My build system is based on gulp starter.