added coc.nvim

2 files changed, 174 insertions, 124 deletions

diff --git a/init.lua b/init.lua
index 896c7cf..09900ae 100644
--- a/init.lua
+++ b/init.lua
@@ -21,27 +21,13 @@ require('lazy').setup({
     
     -- LSP
     {
-        {'VonHeikemen/lsp-zero.nvim',
+         -- Autocompletion
+        {'neoclide/coc.nvim' ,
         config = function()
             require('autocomplete/autocomplete')
-        end
+        end ,
+        branch="release"
         },
-        'neovim/nvim-lspconfig',
-
-
-         {'williamboman/mason.nvim',
-         config = function()
-            require('mason').setup()
-         end},
-         'williamboman/mason-lspconfig.nvim' , -- Optional
-
-         -- Autocompletion
-         'hrsh7th/nvim-cmp', -- Required
-         'hrsh7th/cmp-nvim-lsp', -- Required
-         'hrsh7th/cmp-buffer', -- Optional
-         'hrsh7th/cmp-path', -- Optional
-         'saadparwaiz1/cmp_luasnip', -- Optional
-         'hrsh7th/cmp-nvim-lua', -- Optional
 
          -- Snippets
          'L3MON4D3/LuaSnip' ,    -- Required
diff --git a/lua/autocomplete/autocomplete.lua b/lua/autocomplete/autocomplete.lua
index 6bab031..ae863d6 100644
--- a/lua/autocomplete/autocomplete.lua
+++ b/lua/autocomplete/autocomplete.lua
@@ -1,108 +1,172 @@
--- Add additional capabilities supported by nvim-cmp
-local capabilities = require('cmp_nvim_lsp').default_capabilities()
-
-local lspconfig = require('lspconfig')
-
--- Enable some language servers with the additional completion capabilities offered by nvim-cmp
-local servers = { 'clangd', 'rust_analyzer', 'pyright', 'tsserver', 'cmake'}
-for _, lsp in ipairs(servers) do
-  lspconfig[lsp].setup {
-    -- on_attach = my_custom_on_attach,
-    capabilities = capabilities,
-  }
+local keyset = vim.keymap.set
+-- Autocomplete
+function _G.check_back_space()
+    local col = vim.fn.col('.') - 1
+    return col == 0 or vim.fn.getline('.'):sub(col, col):match('%s') ~= nil
 end
 
--- luasnip setup
-local luasnip = require 'luasnip'
-
--- nvim-cmp setup
-local cmp = require 'cmp'
-cmp.setup {
-  snippet = {
-    expand = function(args)
-      luasnip.lsp_expand(args.body)
-    end,
-  },
-  mapping = cmp.mapping.preset.insert({
-    ['<C-d>'] = cmp.mapping.scroll_docs(-4),
-    ['<C-f>'] = cmp.mapping.scroll_docs(4),
-    ['<C-Space>'] = cmp.mapping.complete(),
-    ['<CR>'] = cmp.mapping.confirm {
-      behavior = cmp.ConfirmBehavior.Replace,
-      select = true,
-    },
-    ['<Tab>'] = cmp.mapping(function(fallback)
-      if cmp.visible() then
-        cmp.select_next_item()
-      elseif luasnip.expand_or_jumpable() then
-        luasnip.expand_or_jump()
-      else
-        fallback()
-      end
-    end, { 'i', 's' }),
-    ['<S-Tab>'] = cmp.mapping(function(fallback)
-      if cmp.visible() then
-        cmp.select_prev_item()
-      elseif luasnip.jumpable(-1) then
-        luasnip.jump(-1)
-      else
-        fallback()
-      end
-    end, { 'i', 's' }),
-  }),
-  sources = cmp.config.sources({
-    { name = 'nvim_lsp' },
-    { name = 'luasnip' },
-  }),
-  window = { 
-    completion = cmp.config.window.bordered(),
-    documentation = cmp.config.window.bordered()
-  },
-  formatting = {
-    fields = { "abbr", "menu", "kind" },
-    format = function(entry, item)
-        -- Define menu shorthand for different completion sources.
-        local menu_icon = {
-            nvim_lsp = "LSP",
-            nvim_lua = "LUA",
-            luasnip  = "SNP",
-            buffer   = "BUFF",
-            path     = "PATH",
-        }
-        -- Set the menu "icon" to the shorthand for each completion source.
-        item.menu = menu_icon[entry.source.name]
-
-        -- Set the fixed width of the completion menu to 60 characters.
-        -- fixed_width = 20
-
-        -- Set 'fixed_width' to false if not provided.
-        fixed_width = fixed_width or false
-
-        -- Get the completion entry text shown in the completion window.
-        local content = item.abbr
-
-        -- Set the fixed completion window width.
-        if fixed_width then
-            vim.o.pumwidth = fixed_width
-        end
-
-        -- Get the width of the current window.
-        local win_width = vim.api.nvim_win_get_width(0)
-
-        -- Set the max content width based on either: 'fixed_width'
-        -- or a percentage of the window width, in this case 20%.
-        -- We subtract 10 from 'fixed_width' to leave room for 'kind' fields.
-        local max_content_width = fixed_width and fixed_width - 10 or math.floor(win_width * 0.2)
-
-        -- Truncate the completion entry text if it's longer than the
-        -- max content width. We subtract 3 from the max content width
-        -- to account for the "..." that will be appended to it.
-        if #content > max_content_width then
-            item.abbr = vim.fn.strcharpart(content, 0, max_content_width - 3) .. "..."
-        else
-            item.abbr = content .. (" "):rep(max_content_width - #content)
-        end
-        return item
-    end,
-},
-}
+-- Use Tab for trigger completion with characters ahead and navigate
+-- NOTE: There's always a completion item selected by default, you may want to enable
+-- no select by setting `"suggest.noselect": true` in your configuration file
+-- NOTE: Use command ':verbose imap <tab>' to make sure Tab is not mapped by
+-- other plugins before putting this into your config
+local opts = {silent = true, noremap = true, expr = true, replace_keycodes = false}
+keyset("i", "<TAB>", 'coc#pum#visible() ? coc#pum#next(1) : v:lua.check_back_space() ? "<TAB>" : coc#refresh()', opts)
+keyset("i", "<S-TAB>", [[coc#pum#visible() ? coc#pum#prev(1) : "\<C-h>"]], opts)
+
+-- Make <CR> to accept selected completion item or notify coc.nvim to format
+-- <C-g>u breaks current undo, please make your own choice
+keyset("i", "<cr>", [[coc#pum#visible() ? coc#pum#confirm() : "\<C-g>u\<CR>\<c-r>=coc#on_enter()\<CR>"]], opts)
+
+-- Use <c-j> to trigger snippets
+keyset("i", "<c-j>", "<Plug>(coc-snippets-expand-jump)")
+-- Use <c-space> to trigger completion
+keyset("i", "<c-space>", "coc#refresh()", {silent = true, expr = true})
+
+-- Use `[g` and `]g` to navigate diagnostics
+-- Use `:CocDiagnostics` to get all diagnostics of current buffer in location list
+keyset("n", "[g", "<Plug>(coc-diagnostic-prev)", {silent = true})
+keyset("n", "]g", "<Plug>(coc-diagnostic-next)", {silent = true})
+
+-- GoTo code navigation
+keyset("n", "gd", "<Plug>(coc-definition)", {silent = true})
+keyset("n", "gy", "<Plug>(coc-type-definition)", {silent = true})
+keyset("n", "gi", "<Plug>(coc-implementation)", {silent = true})
+keyset("n", "gr", "<Plug>(coc-references)", {silent = true})
+
+
+-- Use K to show documentation in preview window
+function _G.show_docs()
+    local cw = vim.fn.expand('<cword>')
+    if vim.fn.index({'vim', 'help'}, vim.bo.filetype) >= 0 then
+        vim.api.nvim_command('h ' .. cw)
+    elseif vim.api.nvim_eval('coc#rpc#ready()') then
+        vim.fn.CocActionAsync('doHover')
+    else
+        vim.api.nvim_command('!' .. vim.o.keywordprg .. ' ' .. cw)
+    end
+end
+keyset("n", "K", '<CMD>lua _G.show_docs()<CR>', {silent = true})
+
+
+-- Highlight the symbol and its references on a CursorHold event(cursor is idle)
+vim.api.nvim_create_augroup("CocGroup", {})
+vim.api.nvim_create_autocmd("CursorHold", {
+    group = "CocGroup",
+    command = "silent call CocActionAsync('highlight')",
+    desc = "Highlight symbol under cursor on CursorHold"
+})
+
+
+-- Symbol renaming
+keyset("n", "<leader>rn", "<Plug>(coc-rename)", {silent = true})
+
+
+-- Formatting selected code
+keyset("x", "<leader>f", "<Plug>(coc-format-selected)", {silent = true})
+keyset("n", "<leader>f", "<Plug>(coc-format-selected)", {silent = true})
+
+
+-- Setup formatexpr specified filetype(s)
+vim.api.nvim_create_autocmd("FileType", {
+    group = "CocGroup",
+    pattern = "typescript,json",
+    command = "setl formatexpr=CocAction('formatSelected')",
+    desc = "Setup formatexpr specified filetype(s)."
+})
+
+-- Update signature help on jump placeholder
+vim.api.nvim_create_autocmd("User", {
+    group = "CocGroup",
+    pattern = "CocJumpPlaceholder",
+    command = "call CocActionAsync('showSignatureHelp')",
+    desc = "Update signature help on jump placeholder"
+})
+
+-- Apply codeAction to the selected region
+-- Example: `<leader>aap` for current paragraph
+local opts = {silent = true, nowait = true}
+keyset("x", "<leader>a", "<Plug>(coc-codeaction-selected)", opts)
+keyset("n", "<leader>a", "<Plug>(coc-codeaction-selected)", opts)
+
+-- Remap keys for apply code actions at the cursor position.
+keyset("n", "<leader>ac", "<Plug>(coc-codeaction-cursor)", opts)
+-- Remap keys for apply source code actions for current file.
+keyset("n", "<leader>as", "<Plug>(coc-codeaction-source)", opts)
+-- Apply the most preferred quickfix action on the current line.
+keyset("n", "<leader>qf", "<Plug>(coc-fix-current)", opts)
+
+-- Remap keys for apply refactor code actions.
+keyset("n", "<leader>re", "<Plug>(coc-codeaction-refactor)", { silent = true })
+keyset("x", "<leader>r", "<Plug>(coc-codeaction-refactor-selected)", { silent = true })
+keyset("n", "<leader>r", "<Plug>(coc-codeaction-refactor-selected)", { silent = true })
+
+-- Run the Code Lens actions on the current line
+keyset("n", "<leader>cl", "<Plug>(coc-codelens-action)", opts)
+
+
+-- Map function and class text objects
+-- NOTE: Requires 'textDocument.documentSymbol' support from the language server
+keyset("x", "if", "<Plug>(coc-funcobj-i)", opts)
+keyset("o", "if", "<Plug>(coc-funcobj-i)", opts)
+keyset("x", "af", "<Plug>(coc-funcobj-a)", opts)
+keyset("o", "af", "<Plug>(coc-funcobj-a)", opts)
+keyset("x", "ic", "<Plug>(coc-classobj-i)", opts)
+keyset("o", "ic", "<Plug>(coc-classobj-i)", opts)
+keyset("x", "ac", "<Plug>(coc-classobj-a)", opts)
+keyset("o", "ac", "<Plug>(coc-classobj-a)", opts)
+
+
+-- Remap <C-f> and <C-b> to scroll float windows/popups
+---@diagnostic disable-next-line: redefined-local
+local opts = {silent = true, nowait = true, expr = true}
+keyset("n", "<C-f>", 'coc#float#has_scroll() ? coc#float#scroll(1) : "<C-f>"', opts)
+keyset("n", "<C-b>", 'coc#float#has_scroll() ? coc#float#scroll(0) : "<C-b>"', opts)
+keyset("i", "<C-f>",
+       'coc#float#has_scroll() ? "<c-r>=coc#float#scroll(1)<cr>" : "<Right>"', opts)
+keyset("i", "<C-b>",
+       'coc#float#has_scroll() ? "<c-r>=coc#float#scroll(0)<cr>" : "<Left>"', opts)
+keyset("v", "<C-f>", 'coc#float#has_scroll() ? coc#float#scroll(1) : "<C-f>"', opts)
+keyset("v", "<C-b>", 'coc#float#has_scroll() ? coc#float#scroll(0) : "<C-b>"', opts)
+
+
+-- Use CTRL-S for selections ranges
+-- Requires 'textDocument/selectionRange' support of language server
+keyset("n", "<C-s>", "<Plug>(coc-range-select)", {silent = true})
+keyset("x", "<C-s>", "<Plug>(coc-range-select)", {silent = true})
+
+
+-- Add `:Format` command to format current buffer
+vim.api.nvim_create_user_command("Format", "call CocAction('format')", {})
+
+-- " Add `:Fold` command to fold current buffer
+vim.api.nvim_create_user_command("Fold", "call CocAction('fold', <f-args>)", {nargs = '?'})
+
+-- Add `:OR` command for organize imports of the current buffer
+vim.api.nvim_create_user_command("OR", "call CocActionAsync('runCommand', 'editor.action.organizeImport')", {})
+
+-- Add (Neo)Vim's native statusline support
+-- NOTE: Please see `:h coc-status` for integrations with external plugins that
+-- provide custom statusline: lightline.vim, vim-airline
+vim.opt.statusline:prepend("%{coc#status()}%{get(b:,'coc_current_function','')}")
+
+-- Mappings for CoCList
+-- code actions and coc stuff
+---@diagnostic disable-next-line: redefined-local
+local opts = {silent = true, nowait = true}
+-- Show all diagnostics
+keyset("n", "<space>a", ":<C-u>CocList diagnostics<cr>", opts)
+-- Manage extensions
+keyset("n", "<space>e", ":<C-u>CocList extensions<cr>", opts)
+-- Show commands
+keyset("n", "<space>c", ":<C-u>CocList commands<cr>", opts)
+-- Find symbol of current document
+keyset("n", "<space>o", ":<C-u>CocList outline<cr>", opts)
+-- Search workspace symbols
+keyset("n", "<space>s", ":<C-u>CocList -I symbols<cr>", opts)
+-- Do default action for next item
+keyset("n", "<space>j", ":<C-u>CocNext<cr>", opts)
+-- Do default action for previous item
+keyset("n", "<space>k", ":<C-u>CocPrev<cr>", opts)
+-- Resume latest coc list
+keyset("n", "<space>p", ":<C-u>CocListResume<cr>", opts)