nvim: Use gitsigns

Currently there is an observable bug where this doesn't play well with
gina buffers. Perhaps it should be disabled for any gina buffers or
something similar.

nvim/.config/nvim/lua/init.lua

@@ -113,6 +113,7 @@ require 'modules.diagnostic'
 require 'modules.floaterm'
 require 'modules.fzf'
 require 'modules.fzf-preview'
+require 'modules.gitsigns'
 require 'modules.sneak'
 require 'modules.togglelist'
 require 'modules.which_key'

nvim/.config/nvim/lua/modules/gitsigns.lua

@@ -0,0 +1,19 @@
+require('gitsigns').setup {
+  signs = {
+    add          = {hl = 'DiffAdd'   , text = '+'},
+    change       = {hl = 'DiffChange', text = '!'},
+    delete       = {hl = 'DiffDelete', text = 'x'},
+    topdelete    = {hl = 'DiffDelete', text = '-'},
+    changedelete = {hl = 'DiffChange', text = '~'},
+  },
+  keymaps = {
+    [']c']  = '<cmd>lua require("gitsigns").next_hunk()<CR>',
+    ['[c']  = '<cmd>lua require("gitsigns").prev_hunk()<CR>',
+    ['ghs'] = '<cmd>lua require("gitsigns").stage_hunk()<CR>',
+    ['ghu'] = '<cmd>lua require("gitsigns").undo_stage_hunk()<CR>',
+    ['ghr'] = '<cmd>lua require("gitsigns").reset_hunk()<CR>',
+  },
+  watch_index = {
+    interval = 1000
+  }
+}

nvim/.config/nvim/lua/plugins.lua

@@ -20,6 +20,8 @@ paq 'steelsojka/completion-buffers'
 -- For tmux
 paq 'tmux-plugins/vim-tmux-focus-events'
 -- Git support
+paq 'nvim-lua/plenary.nvim'
+paq 'lewis6991/gitsigns.nvim'
 paq 'lambdalisue/gina.vim'
 paq 'rhysd/git-messenger.vim'
 paq 'rhysd/conflict-marker.vim'