nvim/plug: lewis6991/gitsigns.nvim@release

Replacing gitgutter, gitsigns appears to be the standard neovim git
integration plugin.

It is _significantly_ faster in responding to file deltas, and plays
really nicely with a lot of other tooling in the neovim ecosystem. It
also appears very customizable.

nvim/lua/psoxizsh/plugins/config/gitsigns.lua

@@ -0,0 +1,12 @@
+return function()
+  local gitsigns, util = require 'gitsigns', require 'psoxizsh.util'
+
+  local defaults = {
+    sign_priority = 100,
+    current_line_blame_formatter_opts = {
+      relative_time = false
+    },
+  }
+
+  gitsigns.setup(util.mconfig('config.gitsigns', defaults))
+end

nvim/lua/psoxizsh/plugins/plug.lua

@@ -48,6 +48,11 @@ local plugins = {
   { 'scrooloose/nerdcommenter' },
 
   -- Stat line integrations
+  { 'lewis6991/gitsigns.nvim',
+      tag = 'release',
+      requires = { 'nvim-lua/plenary.nvim' },
+      config = require 'psoxizsh.plugins.config.gitsigns'
+  },
 
   -- Buffer mangement
   { 'qpkorr/vim-bufkill' },