Added gitsigns to plugins and its according configuration

Signed-off-by: Louis Vallat <louis@louis-vallat.xyz>

.config/nvim/init.vim

@@ -1,4 +1,5 @@
 set number relativenumber
+set mouse+=a
 
 augroup numbertoggle
   autocmd!
@@ -24,6 +25,8 @@ Plug 'sonph/onehalf', { 'rtp': 'vim' }
 Plug 'neoclide/coc.nvim', {'branch': 'release'}
 Plug 'norcalli/nvim-colorizer.lua'
 Plug 'vim-airline/vim-airline'
+Plug 'nvim-lua/plenary.nvim'
+Plug 'lewis6991/gitsigns.nvim'
 
 call plug#end()
 
@@ -31,3 +34,5 @@ colorscheme onehalfdark
 
 source $HOME/.config/nvim/plug-config/coc.vim
 source $HOME/.config/nvim/plug-config/airline.vim
+lua require('lovallat/gitsigns')
+

.config/nvim/lua/lovallat/gitsigns.lua

@@ -0,0 +1,64 @@
+require('gitsigns').setup {
+  signs = {
+    add          = {hl = 'GitSignsAdd'   , text = '│', numhl='GitSignsAddNr'   , linehl='GitSignsAddLn'},
+    change       = {hl = 'GitSignsChange', text = '│', numhl='GitSignsChangeNr', linehl='GitSignsChangeLn'},
+    delete       = {hl = 'GitSignsDelete', text = '_', numhl='GitSignsDeleteNr', linehl='GitSignsDeleteLn'},
+    topdelete    = {hl = 'GitSignsDelete', text = '‾', numhl='GitSignsDeleteNr', linehl='GitSignsDeleteLn'},
+    changedelete = {hl = 'GitSignsChange', text = '~', numhl='GitSignsChangeNr', linehl='GitSignsChangeLn'},
+  },
+  signcolumn = true,  -- Toggle with `:Gitsigns toggle_signs`
+  numhl      = false, -- Toggle with `:Gitsigns toggle_numhl`
+  linehl     = false, -- Toggle with `:Gitsigns toggle_linehl`
+  word_diff  = false, -- Toggle with `:Gitsigns toggle_word_diff`
+  keymaps = {
+    -- Default keymap options
+    noremap = true,
+
+    ['n ]c'] = { expr = true, "&diff ? ']c' : '<cmd>lua require\"gitsigns.actions\".next_hunk()<CR>'"},
+    ['n [c'] = { expr = true, "&diff ? '[c' : '<cmd>lua require\"gitsigns.actions\".prev_hunk()<CR>'"},
+
+    ['n <leader>hs'] = '<cmd>lua require"gitsigns".stage_hunk()<CR>',
+    ['v <leader>hs'] = '<cmd>lua require"gitsigns".stage_hunk({vim.fn.line("."), vim.fn.line("v")})<CR>',
+    ['n <leader>hu'] = '<cmd>lua require"gitsigns".undo_stage_hunk()<CR>',
+    ['n <leader>hr'] = '<cmd>lua require"gitsigns".reset_hunk()<CR>',
+    ['v <leader>hr'] = '<cmd>lua require"gitsigns".reset_hunk({vim.fn.line("."), vim.fn.line("v")})<CR>',
+    ['n <leader>hR'] = '<cmd>lua require"gitsigns".reset_buffer()<CR>',
+    ['n <leader>hp'] = '<cmd>lua require"gitsigns".preview_hunk()<CR>',
+    ['n <leader>hb'] = '<cmd>lua require"gitsigns".blame_line(true)<CR>',
+    ['n <leader>hS'] = '<cmd>lua require"gitsigns".stage_buffer()<CR>',
+    ['n <leader>hU'] = '<cmd>lua require"gitsigns".reset_buffer_index()<CR>',
+
+    -- Text objects
+    ['o ih'] = ':<C-U>lua require"gitsigns.actions".select_hunk()<CR>',
+    ['x ih'] = ':<C-U>lua require"gitsigns.actions".select_hunk()<CR>'
+  },
+  watch_gitdir = {
+    interval = 1000,
+    follow_files = true
+  },
+  attach_to_untracked = true,
+  current_line_blame = false, -- Toggle with `:Gitsigns toggle_current_line_blame`
+  current_line_blame_opts = {
+    virt_text = true,
+    virt_text_pos = 'eol', -- 'eol' | 'overlay' | 'right_align'
+    delay = 1000,
+  },
+  current_line_blame_formatter_opts = {
+    relative_time = false
+  },
+  sign_priority = 6,
+  update_debounce = 100,
+  status_formatter = nil, -- Use default
+  max_file_length = 40000,
+  preview_config = {
+    -- Options passed to nvim_open_win
+    border = 'single',
+    style = 'minimal',
+    relative = 'cursor',
+    row = 0,
+    col = 1
+  },
+  yadm = {
+    enable = false
+  },
+}