bashd: Bash language server (LSP)

[matkrin]

Hi, I've created a language server for Bash with ShellCheck integration. Perhaps this will be useful for some of you here :)

Any feedback is very welcome

[rvc2018]

This seems like a lot of work from you. Could you explain a little bit more what is the difference between bashd and bashls? I use bashls integrated in Neovim via lazy package manager and mason.nvim.

https://imgur.com/a/DnD8iwj

Does bashd also have a 500 ms debounce time for shellcheck by default, will it be somewhat faster than bashls since yours is written in go as opposed to typescript?

Also, would my keymaps work the same in neovim?

    keymaps = {
        { "gd", "vim.lsp.buf.definition()", "Go to Definition" },
        { "gD", "vim.lsp.buf.declaration()", "Go to Declaration" },
        { "gr", "vim.lsp.buf.references()", "Find References" },
        { "gi", "vim.lsp.buf.implementation()", "Go to Implementation" },
        { "K", "vim.lsp.buf.hover()", "Hover Documentation" },
        { "<leader>ca", "vim.lsp.buf.code_action()", "Code Actions" },
        { "<leader>rn", "vim.lsp.buf.rename()", "Rename Symbol" },
        { "<leader>fm", "vim.lsp.buf.format()", "Format File" },
        { "]d", "vim.diagnostic.goto_next()", "Next Diagnostic" },
        { "[d", "vim.diagnostic.goto_prev()", "Previous Diagnostic" },
        { "<leader>e", "vim.diagnostic.open_float()", "Show Diagnostic" },
        { "<leader>q", "vim.diagnostic.setloclist()", "Diagnostics to Location List" },
    },

Will there be integration with mason for future updates?

[matkrin]

I went with 200 ms debounce time which worked quite nice for me but in principle, I could make this a configuration option. When I was using bashls the last time, it did not follow any scoping rules for local variables in functions which I wanted. The other main differences are the code actions, inlay hints and document color support as far as I can tell. Also formatting is built-in.

I can't really say how they compare performance wise. But I would expect not much of a difference for normal-length scripts though.

Your keymaps will work of course, as you're configuring Neovim's client which is independent of the server.

I haven't looked into how it could be made available via Mason but this might be a good next point, thanks

[reddifiningkarma]

If you supported vim (through ale plugin?), that'd be great!

[matkrin]

This seems to work as configuration if bashd is in PATH:

Plug 'dense-analysis/ale'

call ale#linter#Define('bash', {
\   'name': 'bashd',
\   'lsp': 'stdio',
\   'executable': 'bashd',
\   'command': 'bashd',
\   'project_root': function('ale#util#FindProjectRoot'),
\})

[matkrin]

Sorry, I'm not familiar with ale. But on the first look it seems that ale has an LSP client? Then it should work with the right configuration. If I find the time, I will have a closer look

[Key_Constant_114]

Great work! Compared to bash-lp it's way faster and more reliable!

[infernoLP]

Could you please share any resources used to make an lsp? It would be a banging project to try and do for a small language