first commit

README.md

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+Neovim configuration
+--------------------
+
+This is my Neovim configuratio all written in lua, Neovim 8 minimum is required. 
+For `Tree sitter` working properly, you need `g++` in Debian :
+
+```
+apt install g++ clang gcc
+```
+
+Then clone this repository:
+
+```
+git clone https://git.epha.se/ephase/nvim_config.git ~/.config/nvim
+```
+
+To install plugins, start nvim in headless mode with `lua/plugins.lua` config
+file:
+
+```
+nvim -u ~/.config/nvim/lua/plugins.lua --headless
+```
+
+## Keybinding
+
+Leader key is `space`
+
+* <leader>fm : open file manager
+* <leader>l : show all caracters (`space`, `tab`, `eol`)
+* <leader>[ : previous tab
+* <leader>] : nest tab
+* <leader>gn : gitsign - goto next hunk
+* <leader>gN : gitsign - goto previous hunk
+* <leader>gs : gitsign - stage hunk
+* <leader>gr : gitsign - reset hunk
+* <leader>gd : gitsign - diff

init.lua

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+require("plugins")
+require("settings")
+require("plugins-options")
+require("keybiding")

lua/keybiding.lua

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+-- " Key biding
+-- " ----------
+local opts = { noremap = true, silent = true}
+
+vim.api.nvim_set_keymap('n', '<leader>/', ':nohlsearch<CR>', opts)
+
+vim.api.nvim_set_keymap('n', '<leader>fm',
+    ':NeoTreeFocusToggle<CR>',
+    { table.unpack(opts), desc = 'Toggle NeoTree' }
+)
+
+-- Move tabs with \[ and \]
+vim.api.nvim_set_keymap('n', '<Leader>]', ':tabnext<CR>', opts)
+vim.api.nvim_set_keymap('n', '<Leader>[', ':tabprev<CR>', opts)
+vim.api.nvim_set_keymap('n', '<leader>l', ':set list!<CR>', {silent = true})
+
+-- Manage Tab
+local t = function(str)
+  return vim.api.nvim_replace_termcodes(str, true, true, true)
+end
+
+-- git sign
+-- vim.api.nvim_set_keymap('n', '<leader>gp', require("gitsigns").preview_hunk, opts)
+vim.api.nvim_set_keymap('n', '<leader>gn', [[<cmd>lua require('gitsigns').next_hunk()<CR>]], opts)
+vim.api.nvim_set_keymap('n', '<leader>gN', [[<cmd>lua require('gitsigns').prev_hunk()<CR>]], opts)
+vim.api.nvim_set_keymap('n', '<leader>gs', ':Gitsigns stage_hunk<CR>', opts)
+vim.api.nvim_set_keymap('n', '<leader>gr', ':Gitsigns reset_hunk<CR>', opts)
+vim.api.nvim_set_keymap('n', '<leader>gd', [[<cmd>lua require("gitsigns").diffthis('~')<CR>]], opts)

lua/plugins-options.lua

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+require('plugins.treesitter')
+require('plugins.lsp')
+require('plugins.mason')
+require('plugins.cmp')
+require('plugins.gitsigns')
+require('plugins.lualine')
+require('plugins.autopairs')
+require('plugins.whichkey')
+require('plugins.base16')
+require('plugins.neotree')

lua/plugins.lua

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+local function clone_paq()
+   local path = vim.fn.stdpath("data") .. "/site/pack/paqs/start/paq-nvim"
+   local is_installed = vim.fn.empty(vim.fn.glob(path)) == 0
+   if not is_installed then
+     vim.fn.system { "git", "clone", "--depth=1", "https://github.com/savq/paq-nvim.git", path }
+     return true
+   end
+end
+
+local pkgs = {
+   "savq/paq-nvim";
+   
+   -- need to install g++ package on Debian
+   -- for tree sitter plugins
+   'nvim-treesitter/nvim-treesitter';
+
+   -- LSP installer
+   'neovim/nvim-lspconfig';
+   
+   -- ui elements
+   'MunifTanjim/nui.nvim';
+   'nvim-lua/plenary.nvim';
+
+   -- status bar
+   'nvim-lualine/lualine.nvim';
+
+   -- Base16 theme
+   'RRethy/nvim-base16';
+   
+   -- file manager
+   'nvim-neo-tree/neo-tree.nvim';
+
+   -- git integration
+   'lewis6991/gitsigns.nvim';
+
+   
+   -- Mason is a GUI to install language servers and lspconfig is a bridge
+   -- between mason and nvim-lspconfig
+   'williamboman/mason.nvim';
+   'williamboman/mason-lspconfig.nvim';
+
+   -- autocompletion plugin
+   'hrsh7th/nvim-cmp';
+   'hrsh7th/cmp-nvim-lsp';     -- LSP source
+   'hrsh7th/cmp-path';         -- path source
+   'hrsh7th/cmp-buffer';       -- buffer
+   'L3MON4D3/LuaSnip';         -- snippet engine
+   'saadparwaiz1/cmp_luasnip';
+
+   -- autopair
+   'windwp/nvim-autopairs';
+
+   -- indent guide
+   'lukas-reineke/indent-blankline.nvim';
+   
+   -- windows popup with keys
+   'folke/which-key.nvim';
+}
+
+if clone_paq() then
+    vim.cmd('packadd paq-nvim')
+    local paq = require('paq')
+    -- Exit nvim after installing plugins
+    vim.cmd('autocmd User PaqDoneInstall quit')
+     -- Read and install packages
+    paq(pkgs)
+    paq.install()
+end
+
+local paq = require("paq")
+paq(pkgs)

lua/plugins/autopairs.lua

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+local autopair = require("nvim-autopairs").setup {}

lua/plugins/base16.lua

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+vim.cmd.colorscheme 'base16-default-dark'

lua/plugins/cmp.lua

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+local has_words_before = function()
+  unpack = unpack or table.unpack
+  local line, col = unpack(vim.api.nvim_win_get_cursor(0))
+  return col ~= 0 and vim.api.nvim_buf_get_lines(
+    0, 
+    line - 1, 
+    line, 
+    true
+  )[1]:sub(col, col):match('%s') == nil
+end
+
+-- Add additional capabilities supported by nvim-cmp
+local capabilities = require('cmp_nvim_lsp').default_capabilities()
+local luasnip = require("luasnip")
+
+local kind_icons = {
+  Text = "",
+  Method = "",
+  Function = "",
+  Constructor = "",
+  Field = "",
+  Variable = "",
+  Class = "ﴯ",
+  Interface = "",
+  Module = "",
+  Property = "ﰠ",
+  Unit = "",
+  Value = "",
+  Enum = "",
+  Keyword = "",
+  Snippet = "",
+  Color = "",
+  File = "",
+  Reference = "",
+  Folder = "",
+  EnumMember = "",
+  Constant = "",
+  Struct = "",
+  Event = "",
+  Operator = "",
+  TypeParameter = ""
+}
+
+-- nvim-cmp setup
+local cmp = require 'cmp'
+cmp.setup {
+  mapping = {
+    ["<Tab>"] = cmp.mapping(function(fallback)
+      if cmp.visible() then
+        cmp.select_next_item()
+      -- You could replace the expand_or_jumpable() calls with expand_or_locally_jumpable() 
+      -- they way you will only jump inside the snippet region
+      elseif luasnip.expand_or_jumpable() then
+        luasnip.expand_or_jump()
+      elseif has_words_before() then
+        cmp.complete()
+      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" }),
+  },
+  formatting = {
+    format = function(_, vim_item)
+      vim_item.kind = string.format('%s %s', kind_icons[vim_item.kind], vim_item.kind)
+      return vim_item
+    end,
+  },
+  sources = {
+    { name = 'nvim_lsp' },
+    { name = 'luasnip' }, 
+    { name = 'path' },
+    { name = 'buffer' },
+  },
+}

lua/plugins/gitsigns.lua

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+require('gitsigns').setup {
+    keymaps = {}, -- NO default keybindings
+}

lua/plugins/lsp.lua

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+local lspconfig = require('lspconfig')

lua/plugins/lualine.lua

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+require('lualine').setup {
+  options = {
+    icons_enabled = true,
+    theme = 'base16',
+    component_separators = { left = '|', right = '|'},
+    section_separators = { left = '', right = ''},
+    disabled_filetypes = {},
+    always_divide_middle = true,
+    globalstatus = true,
+  },
+  sections = {
+    lualine_a = {'mode'},
+    lualine_b = {'branch', 'diff', 'diagnostics'},
+    lualine_c = {'filename'},
+    lualine_x = {'encoding', 'fileformat', 'filetype'},
+    lualine_y = {'progress'},
+    lualine_z = {'location'}
+  },
+  inactive_sections = {
+    lualine_a = {},
+    lualine_b = {},
+    lualine_c = {'filename'},
+    lualine_x = {'location'},
+    lualine_y = {},
+    lualine_z = {}
+  },
+  tabline = {},
+  extensions = {}
+}

lua/plugins/mason.lua

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+local mason = require("mason").setup{
+    ensure_installed= {
+        'shellcheck',
+        'shfmt'
+    }
+}
+local mason_lspconfig = require("mason-lspconfig").setup{
+    ensure_installed={
+        'ansiblels',
+        'bashls'
+
+    }        
+}
+
+
+require("mason-lspconfig").setup_handlers({
+    -- The first entry (without a key) will be the default handler
+    -- and will be called for each installed server that doesn't have
+    -- a dedicated handler.
+    function (server_name) -- default handler (optional)
+        require("lspconfig")[server_name].setup {}
+    end,
+    -- Next, you can provide targeted overrides for specific servers.
+    --    
+})

lua/plugins/neotree.lua

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+local neotree = require 'neo-tree'
+
+neotree.setup({
+    event_handlers = {
+          {
+            event = "file_opened",
+            handler = function(file_path)
+              --auto close
+              require("neo-tree").close_all()
+            end
+          },
+      }
+})

lua/plugins/treesitter.lua

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+-- Tree sitter
+local ts = require 'nvim-treesitter.configs'
+
+ts.setup {
+  ensure_installed = {
+      'bash',
+      'c',
+      'cmake',
+      'dockerfile',
+      'latex',
+      'lua',
+      'markdown',
+      'markdown_inline',
+      'python',
+      'yaml'
+  },
+  sync_install = false,
+  highlight = {
+    enable = true,
+    additional_vim_regex_highlighting = false,
+  }
+}

lua/plugins/whichkey.lua

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+local wk = require 'which-key'
+wk.register()

lua/settings.lua

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+-- General Option
+
+vim.g.mapleader = " "
+vim.g.maplocalleader = " "
+
+vim.opt.autoindent = true
+vim.opt.background = 'dark'
+vim.opt.backupdir = os.getenv("HOME") .. '/.local/tmp/nvim'
+vim.opt.clipboard = 'unnamedplus'      --Use system clipboard
+vim.opt.colorcolumn = '80'
+vim.opt.directory = os.getenv("HOME") .. '/.local/tmp/nvim'
+vim.opt.expandtab = true
+vim.opt.foldmethod = 'syntax'
+vim.opt.gdefault = true 	            -- search: all occurrences by default
+vim.opt.hlsearch = true 	            -- search: hightlight terms
+vim.opt.ignorecase = true
+vim.opt.incsearch = true
+vim.opt.laststatus = 1
+-- show special character
+vim.opt.listchars = {tab = '→ ', trail = '␣', eol = '', extends = '…' }
+
+vim.opt.signcolumn = "yes"              -- alway show sign column
+vim.opt.number = true
+vim.opt.relativenumber = true
+vim.opt.cursorline = true               -- highlight current line
+vim.opt.shiftwidth = 4
+vim.opt.showmatch = true
+vim.opt.smartcase = true                -- search: try :to be smart about cases
+vim.opt.smartindent = true
+vim.opt.tabstop = 4
+vim.opt.termguicolors = true            -- 24 bits color support
+vim.opt.wildmenu = true                 -- activate enhanced user menu
+vim.opt.wildmode = 'lastused:full,list' -- enhance menu
+vim.opt.pumheight = 10
+vim.opt.pumwidth = 50
+vim.opt.pumblend = 10
+
+-- Options than need vim.cmd
+-- vim.cmd('syntax on')
+
+-- -- Code Fold
+-- "Load and save view atomatocally (save and restore fold)
+vim.cmd('au BufWinLeave *.* mkview')
+vim.cmd('au BufWinEnter *.* silent! loadview')
+
+
+-- Diagnostic settings
+--
+-- diagnostic windows must be float
+vim.diagnostic.config {
+  virtual_text = false,
+  signs = true,
+  underline = true,
+}
+
+local signs = { Error = " ", Warn = " ", Hint = " ", Info = " " }
+for type, icon in pairs(signs) do
+  local hl = "DiagnosticSign" .. type
+  vim.fn.sign_define(hl, { text = icon, texthl = hl, numhl = hl })
+end
+
+-- You will likely want to reduce updatetime which affects CursorHold
+-- note: this setting is global and should be set only once
+vim.o.updatetime = 250
+vim.cmd [[autocmd! CursorHold,CursorHoldI * lua vim.diagnostic.open_float(nil, {scope='cursor', header = "", prefix = "", focus=false})]]
+
+-- Autotype
+vim.cmd('au BufRead,BufNewFile *.md setlocal textwidth=80')
+vim.cmd('au BufRead,BufNewFile *.tex setlocal textwidth=80')
+vim.cmd('au BufNewFile,BufRead /tmp/neomutt* set tw=72 fo=awq comments+=nb:> noautoindent filetype=mail')
+
+-- Ignore these filenames during enhanced command line completion.
+vim.opt.wildignore = {
+    '*.bak',
+    '*.class',
+    '*.aux',
+    '*.out',
+    '*.toc',
+    '*.jpg',
+    '*.bmp',
+    '*.gif',
+    '*.png',
+    '*.luac',
+    '*.o',
+    '*.obj',
+    '*.exe',
+    '*.dll',
+    '*.manifest',
+    '*.pyc',
+    '*.spl',
+    '*.sw?'
+}