feat: add mini.icons support as file icons provider (sindrets#571)

Add support for mini.icons as an alternative to nvim-web-devicons for
file icons. The plugin will try nvim-web-devicons first, then fall back
to mini.icons if available.

Author: folliehiyuki

README.md

@@ -18,7 +18,7 @@ for any git rev.
 - Git ≥ 2.31.0 (for Git support)
 - Mercurial ≥ 5.4.0 (for Mercurial support)
 - Neovim ≥ 0.7.0 (with LuaJIT)
-- [nvim-web-devicons](https://github.com/nvim-tree/nvim-web-devicons) (optional) For file icons
+- [nvim-web-devicons](https://github.com/nvim-tree/nvim-web-devicons) or [mini.icons](https://github.com/echasnovski/mini.nvim/blob/main/readmes/mini-icons.md) (optional) for file icons
 
 ## Installation
 

doc/diffview_defaults.txt

@@ -7,7 +7,7 @@ DEFAULT CONFIG                                  *diffview.defaults*
     enhanced_diff_hl = false, -- See |diffview-config-enhanced_diff_hl|
     git_cmd = { "git" },      -- The git executable followed by default args.
     hg_cmd = { "hg" },        -- The hg executable followed by default args.
-    use_icons = true,         -- Requires nvim-web-devicons
+    use_icons = true,         -- Requires nvim-web-devicons or mini.icons
     show_help_hints = true,   -- Show hints for how to open the help panel
     watch_index = true,       -- Update views and index buffers when the git index changes.
     icons = {                 -- Only applies when use_icons is true.

lua/diffview/health.lua

@@ -19,6 +19,10 @@ M.plugin_deps = {
     name = "nvim-web-devicons",
     optional = true,
   },
+  {
+    name = "mini.icons",
+    optional = true,
+  },
 }
 
 ---@param cmd string|string[]

lua/diffview/hl.lua

@@ -4,7 +4,7 @@ local config = lazy.require("diffview.config") ---@module "diffview.config"
 local utils = lazy.require("diffview.utils") ---@module "diffview.utils"
 
 local api = vim.api
-local web_devicons
+local web_devicons, mini_icons
 local icon_cache = {}
 
 local M = {}
@@ -349,14 +349,19 @@ end
 function M.get_file_icon(name, ext, render_data, line_idx, offset)
   if not config.get_config().use_icons then return "" end
 
-  if not web_devicons then
+  if not (web_devicons or mini_icons) then
     local ok
     ok, web_devicons = pcall(require, "nvim-web-devicons")
 
+    if not ok then
+      ok, mini_icons = pcall(require, "mini.icons")
+      web_devicons = nil
+    end
+
     if not ok then
       config.get_config().use_icons = false
       utils.warn(
-        "nvim-web-devicons is required to use file icons! "
+        "nvim-web-devicons or mini.icons is required to use file icons! "
           .. "Set `use_icons = false` in your config to stop seeing this message."
       )
 
@@ -369,9 +374,12 @@ function M.get_file_icon(name, ext, render_data, line_idx, offset)
 
   if icon_cache[icon_key] then
     icon, hl = unpack(icon_cache[icon_key])
-  else
+  elseif web_devicons then
     icon, hl = web_devicons.get_icon(name, ext, { default = true })
     icon_cache[icon_key] = { icon, hl }
+  else
+    icon, hl = mini_icons.get("file", name)
+    icon_cache[icon_key] = { icon, hl }
   end
 
   if icon then