kitchen sink again :(

lua/conf/plugins/oil.lua

@@ -1,16 +1,85 @@
-local misc = require('core.misc')
+local misc = require("core.misc")
 local map = misc.map
 
+-- helper function to parse output
+local function parse_output(proc)
+  local result = proc:wait()
+  local ret = {}
+  if result.code == 0 then
+    for line in vim.gsplit(result.stdout, "\n", { plain = true, trimempty = true }) do
+      -- Remove trailing slash
+      line = line:gsub("/$", "")
+      ret[line] = true
+    end
+  end
+  return ret
+end
+
+-- build git status cache
+local function new_git_status()
+  return setmetatable({}, {
+    __index = function(self, key)
+      local ignore_proc = vim.system(
+        { "git", "ls-files", "--ignored", "--exclude-standard", "--others", "--directory" },
+        {
+          cwd = key,
+          text = true,
+        }
+      )
+      local tracked_proc = vim.system({ "git", "ls-tree", "HEAD", "--name-only" }, {
+        cwd = key,
+        text = true,
+      })
+      local ret = {
+        ignored = parse_output(ignore_proc),
+        tracked = parse_output(tracked_proc),
+      }
+
+      rawset(self, key, ret)
+      return ret
+    end,
+  })
+end
+local git_status = new_git_status()
+
 local permission_hlgroups = {
-  ['-'] = 'NonText',
-  ['r'] = 'DiagnosticSignWarn',
-  ['w'] = 'DiagnosticSignHint',
-  ['x'] = 'DiagnosticSignOk',
+  ["-"] = "NonText",
+  ["r"] = "DiagnosticSignWarn",
+  ["w"] = "DiagnosticSignHint",
+  ["x"] = "DiagnosticSignOk",
 }
 
-return { 'stevearc/oil.nvim',
+return { "stevearc/oil.nvim",
   disable = not vim.fn.has("nvim-0.8.0"),
+  deps = {
+    { "refractalize/oil-git-status.nvim",
+      function()
+        require("oil-git-status").setup {
+          symbols = { -- customize the symbols that appear in the git status columns
+            index = {
+              ["A"] = "+",
+              ["D"] = "-",
+              ["M"] = "~",
+            },
+            working_tree = {
+              ["A"] = "+",
+              ["D"] = "-",
+              ["M"] = "~",
+            }
+          }
+        }
+      end
+    }
+  },
   function()
+    -- Clear git status cache on refresh
+    local refresh = require("oil.actions").refresh
+    local orig_refresh = refresh.callback
+    refresh.callback = function(...)
+      git_status = new_git_status()
+      orig_refresh(...)
+    end
+
     require("oil").setup {
       -- ID is automatically added at the beginning, and name at the end
       -- See :help oil-columns
@@ -26,7 +95,7 @@ return { 'stevearc/oil.nvim',
             return hls
           end,
         },
-        { "size", highlight = '@number' }
+        { "size", highlight = "@number" }
       },
 
       -- Window-local options to use for oil buffers
@@ -34,7 +103,7 @@ return { 'stevearc/oil.nvim',
         number = false,
         relativenumber = false,
         wrap = false,
-        signcolumn = "no",
+        signcolumn = "yes:2",
         cursorcolumn = false,
         foldcolumn = "0",
         spell = false,
@@ -100,11 +169,16 @@ return { 'stevearc/oil.nvim',
 
         -- This function defines what is considered a "hidden" file
         is_hidden_file = function(name, bufnr)
-          if name == ".." then -- show previous directory
-            return false
+          local dir = require("oil").get_current_dir(bufnr)
+          local is_dotfile = vim.startswith(name, ".") and name ~= ".."
+          -- if no local directory (e.g. for ssh connections), just hide dotfiles
+          if not dir then
+            return is_dotfile
+          end
+          -- dotfiles are considered hidden unless tracked
+          if is_dotfile then
+            return not git_status[dir].tracked[name]
           end
-          local m = name:match("^%.")
-          return m ~= nil
         end,
 
         -- This function defines what will never be shown, even when `show_hidden` is set
@@ -134,27 +208,27 @@ return { 'stevearc/oil.nvim',
 
       -- Configuration for the floating window in oil.open_float
       float = {
-        border = "solid"
+        border = vim.g.border_style
       },
 
       -- Configuration for the floating action confirmation window
       confirmation = {
-        border = "solid"
+        border = vim.g.border_style
       },
       -- Configuration for the floating progress window
       progress = {
-        border = "solid"
+        border = vim.g.border_style
       },
       -- Configuration for the floating SSH window
       ssh = {
-        border = "solid"
+        border = vim.g.border_style
       },
       -- Configuration for the floating keymaps help window
       keymaps_help = {
-        border = "solid"
+        border = vim.g.border_style
       }
     }
 
-    map('n', '-', '<cmd>Oil<CR>')
+    map("n", "-", "<cmd>Oil<CR>")
   end
 }