joplin-notes/joplin notion extension/Web Development/Neovim/Configuring c++ on neovim.md

Configuring c++ on neovim https://www.youtube.com/watch?v=lsFoZIg-oDs

• Installing clangd(LSP) In ensure_installed section then type :MasonInstallAll. In lspconfig.lua add this

    lspconfig.clangd.setup{
      on_attach=on_attach,
      capabilities=capabilities,
      init_options={
    		preferences={
    			disableSuggestions=true,
    		}
    	}
    }
  
  

  Add instead this in lspconfig.lua to remove warning

  	local cmp_nvim_lsp = require "cmp_nvim_lsp"
  
  require("lspconfig").clangd.setup {
    on_attach = on_attach,
    capabilities = cmp_nvim_lsp.default_capabilities(),
    cmd = {
  	"clangd",
  	"--offset-encoding=utf-16",
    },
  }
  
  

• Autoformatter Install clang-format. Add following in plugins.lua

    {
    "jose-elias-alvarez/null-ls.nvim",
    event="VeryLazy",
    opts=function ()
      return require "custom.configs.null-ls"
    end,
  },
  
  

  Create ~/.config/nvim/lua/custom/configs/null-ls.lua and type this

  local null_ls= require("null-ls")
  
  local opts={
    sources={
  	null_ls.builtins.formatting.clang_format,
    }
  }
  
  return opts
  

  Press space and type fm to format it To have a custom file formatting we need to have .clang-format in out project folder. Generate using this ~/.local/share/nvim/mason/bin/clang-format --style GNU --dump-config > .clang-format

• Setup autoformat on save In null-ls.lua file modify it like this

    local augroup=vim.api.nvim_create_augroup("LspFormatting",{})
    local null_ls= require("null-ls")
  
    local opts={
      sources={
    	null_ls.builtins.formatting.clang_format,
      },
      on_attach=function (client,bufnr)
    	if client.supports_method("textDocument/formatting") then
    	  vim.api.nvim_clear_autocmds({
    		group=augroup,
    		buffer=bufnr,
    	  })
    	  vim.api.nvim_create_autocmd("BufWritePre",{
    		group=augroup,
    		buffer=bufnr,
    		callback=function ()
    		  vim.lsp.buf.format({bufnr=bufnr})
    		end,
    	  })
      end
      end,
    }
  
    return opts
  

• Debugger With mason, install codelldb plugin too. To able to debug them use --debug flag after gcc command when compiling like this gcc --debug main.cpp -o main And when running debugger mention name of executable file ie main here In plugins.lua add this

  {
  "mfussenegger/nvim-dap",
  config=function (_, _)
    require("core.utils").load_mappings("dap")
  end
  },
  -- Also add this
   {
  "jay-babu/mason-nvim-dap.nvim",
  event="VeryLazy",
  dependencies={
    "williamboman/mason.nvim",
    "mfussenegger/nvim-dap",
  },
  opts={
    handlers={}
  },
  },
  -- Add nvim-dap-ui too from javascript debugger too
  
  
  
  

  Also changes in chadrc.lua and add mappings.lua like with js debugger too