feat(ci): add lua static analyzer (#438)

.github/workflows/ci.yaml

@@ -1,4 +1,4 @@
-name: Stylua Check
+name: CI
 
 on:
   push:
@@ -9,7 +9,8 @@ on:
       - main
 
 jobs:
-  format:
+  stylua:
+    name: Check Lua style
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
@@ -18,3 +19,13 @@ jobs:
           token: ${{ secrets.GITHUB_TOKEN }}
           version: latest
           args: --check ./lua/
+  luacheck:
+    name: Lint Lua
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Luacheck linter
+        uses: lunarmodules/luacheck@v1
+        with:
+          args: ./lua/

lua/avante/diff.lua

@@ -100,9 +100,6 @@ local conflict_middle = "^======="
 local conflict_end = "^>>>>>>>"
 local conflict_ancestor = "^|||||||"
 
-local DEFAULT_CURRENT_BG_COLOR = 4218238 -- #405d7e
-local DEFAULT_INCOMING_BG_COLOR = 3229523 -- #314753
-local DEFAULT_ANCESTOR_BG_COLOR = 6824314 -- #68217A
 -----------------------------------------------------------------------------//
 
 --- @return table<string, ConflictBufferCache>
@@ -340,12 +337,6 @@ local function register_cursor_move_events(bufnr)
       Config.diff.mappings.prev,
       Config.diff.mappings.next
     )
-    local win_width = api.nvim_win_get_width(0)
-    local col = win_width - #hint - math.ceil(win_width * 0.3) - 4
-
-    if col < 0 then
-      col = 0
-    end
 
     show_keybinding_hint_extmark_id = api.nvim_buf_set_extmark(bufnr, KEYBINDING_NAMESPACE, lnum - 1, -1, {
       hl_group = "Keyword",
@@ -642,14 +633,14 @@ function M.choose(side)
     vim.defer_fn(function()
       local start = api.nvim_buf_get_mark(0, "<")[1]
       local finish = api.nvim_buf_get_mark(0, ">")[1]
-      local position = find_position(bufnr, function(line, pos)
+      local position = find_position(bufnr, function(_, pos)
         local left = pos.current.range_start >= start - 1
         local right = pos.incoming.range_end <= finish + 1
         return left and right
       end)
       while position ~= nil do
         M.process_position(bufnr, side, position, false)
-        position = find_position(bufnr, function(line, pos)
+        position = find_position(bufnr, function(_, pos)
           local left = pos.current.range_start >= start - 1
           local right = pos.incoming.range_end <= finish + 1
           return left and right
@@ -674,7 +665,7 @@ function M.choose(side)
     while pos ~= nil do
       M.process_position(bufnr, "theirs", pos, false)
       ---@diagnostic disable-next-line: unused-local
-      pos = find_position(bufnr, function(line, pos)
+      pos = find_position(bufnr, function(line, pos_)
         return true
       end)
     end

lua/avante/sidebar.lua

@@ -634,7 +634,7 @@ function Sidebar:render_input()
   ---@diagnostic disable-next-line: undefined-field
   if _G.MiniIcons ~= nil then
     ---@diagnostic disable-next-line: undefined-global
-    icon, _, _ = MiniIcons.get("filetype", filetype)
+    icon, _, _ = MiniIcons.get("filetype", filetype) -- luacheck: ignore
   else
     local ok, devicons = pcall(require, "nvim-web-devicons")
     if ok then
@@ -1571,14 +1571,13 @@ function Sidebar:create_input()
 end
 
 function Sidebar:get_selected_code_size()
-  local selected_code_lines_count = 0
   local selected_code_max_lines_count = 10
 
   local selected_code_size = 0
 
   if self.code.selection ~= nil then
     local selected_code_lines = vim.split(self.code.selection.content, "\n")
-    selected_code_lines_count = #selected_code_lines
+    local selected_code_lines_count = #selected_code_lines
     selected_code_size = math.min(selected_code_lines_count, selected_code_max_lines_count)
   end
 

lua/avante/utils/init.lua

@@ -190,7 +190,7 @@ function M.get_visual_selection_and_range()
     start_line, end_line = end_line, start_line
     start_col, end_col = end_col, start_col
   end
-  local content = ""
+  local content = "" -- luacheck: ignore
   local range = Range.new({ line = start_line, col = start_col }, { line = end_line, col = end_col })
   -- Check if it's a single-line selection
   if start_line == end_line then
@@ -221,11 +221,11 @@ end
 
 ---Wrapper around `api.nvim_buf_get_lines` which defaults to the current buffer
 ---@param start integer
----@param _end integer
+---@param end_ integer
 ---@param buf integer?
 ---@return string[]
-function M.get_buf_lines(start, _end, buf)
+function M.get_buf_lines(start, end_, buf)
-  return api.nvim_buf_get_lines(buf or 0, start, _end, false)
+  return api.nvim_buf_get_lines(buf or 0, start, end_, false)
 end
 
 ---Get cursor row and column as (1, 0) based