Formatting not working for Lua

[ghost]

Describe the bug I execute and the file doesn't change

:lua vim.lsp.buf.formatting()

To Reproduce My efm setup:

local lspconfig = require('lspconfig')
lspconfig.efm.setup({
    cmd = {'efm-langserver', '-logfile', '/tmp/efm.log', '-loglevel', '5'},
    init_options = {documentFormatting = true},
    settings = {
        rootMarkers = {'.git/'},
        languages = {
            lua = {
                formatCommand = 'lua-format -i --double-quote-to-single-quote',
                formatStdin = true
            }
        }
    }
})

I just have a simple rule to convert double quotes to single quotes to test.

Expected behavior Double quotes turn to single quotes when this is executed

:lua vim.lsp.buf.formatting()

Additional context I created a git repo just to test as well (To comply with the rootMakers option)

I have the lua language server running too, tho I have disabled it just in case it was causing any conflict and still nothing.

Lua setup:

local sumneko_root_path = '/usr/share/lua-language-server'
local sumneko_binary = '/bin/lua-language-server'
local lspconfig = require('lspconfig')

lspconfig.sumneko_lua.setup({
    cmd = {sumneko_binary, '-E', sumneko_root_path .. '/main.lua'},
    settings = {
        Lua = {
            runtime = {
                -- Tell the language server which version of Lua you're using (most likely LuaJIT in the case of Neovim)
                version = 'LuaJIT',
                -- Setup your lua path
                path = vim.split(package.path, ';')
            },
            diagnostics = {
                -- Get the language server to recognize the `vim` global
                globals = {'vim'}
            },
            workspace = {
                -- Make the server aware of Neovim runtime files
                library = {
                    [vim.fn.expand('$VIMRUNTIME/lua')] = true,
                    [vim.fn.expand('$VIMRUNTIME/lua/vim/lsp')] = true
                }
            },
            -- Do not send telemetry data containing a randomized but unique identifier
            telemetry = {enable = false}
        }
    }
})

Neovim Version: NVIM v0.5.0-dev+1330 Distro: Arch Linux Terminal: Windows Terminal (Using WSL2)

[lyonelzd]

SOLVED!!

As mentioned in issue #103 languages.<languages> has to be a list. Changing the efm setup

From:

local lspconfig = require('lspconfig')
lspconfig.efm.setup({
    cmd = {'efm-langserver', '-logfile', '/tmp/efm.log', '-loglevel', '5'},
    init_options = {documentFormatting = true},
    settings = {
        rootMarkers = {'.git/'},
        languages = {
            lua = {
                formatCommand = 'lua-format -i --double-quote-to-single-quote',
                formatStdin = true
            }
        }
    }
})

To:

lspconfig.efm.setup({
    init_options = {documentFormatting = true},
    settings = {
        languages = {
            lua = {
            {
             formatCommand = 'lua-format -i', 
             formatStdin = true
            }
        }
    }
})

Did the trick. I'll leave the issue open for exposure but feel free to close it!

[dhruvinsh]

#158 #137 looks like all faces the same issue.

[hinell]

I've solved a similar issue by specifying version = 2 in the settings. See https://github.com/mattn/efm-langserver/issues/264#issuecomment-1784069576