feat: add stylua code formatting

- Add stylua configuration (stylua.toml) with project-specific settings
- Add format and format-check targets to Makefile
- Add stylua formatting job to CI workflow
- Update README with formatting documentation
- Add stylua binary to .gitignore
- Apply formatting to all Lua files
- All tests passing with consistent code style

Author: DROOdotFOO

.github/workflows/ci.yml

@@ -95,6 +95,22 @@ jobs:
         eval "$(luarocks path --bin)" || true
         luacheck lua/ test/ validate.lua --exclude-files test/plenary.nvim --no-max-line-length || echo "Linting completed with warnings"
 
+  format:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v4
+
+    - name: Install stylua
+      run: |
+        curl -sL https://github.com/JohnnyMorganz/stylua/releases/latest/download/stylua-linux.zip | funzip > stylua
+        chmod +x stylua
+        sudo mv stylua /usr/local/bin/
+
+    - name: Check code formatting
+      run: |
+        stylua --check lua/ plugin/ test/ validate.lua
+
   build:
     runs-on: ubuntu-latest
     steps:

.gitignore

@@ -55,6 +55,9 @@ mona_nvim_cache.json
 .mona_nvim_cache.json
 cache/
 
+# Development tools
+stylua
+
 # Temporary files
 *.tmp
 *.temp

Makefile

@@ -1,4 +1,4 @@
-.PHONY: test test-unit test-integration validate clean lint help
+.PHONY: test test-unit test-integration validate clean lint format format-check help
 
 # Default target
 help:
@@ -8,6 +8,8 @@ help:
 	@echo "  test-integration - Run integration tests only"
 	@echo "  validate      - Run validation script"
 	@echo "  lint          - Run luacheck linting"
+	@echo "  format        - Format code with stylua"
+	@echo "  format-check  - Check code formatting"
 	@echo "  clean         - Clean up test artifacts"
 
 # Run all tests
@@ -44,6 +46,18 @@ lint:
 	@luacheck lua/ test/ validate.lua --exclude-files test/plenary.nvim --no-max-line-length
 	@echo "✓ Linting completed"
 
+# Format code with stylua
+format:
+	@echo "Formatting code with stylua..."
+	@stylua lua/ plugin/ test/ validate.lua
+	@echo "✓ Code formatting completed"
+
+# Check code formatting
+format-check:
+	@echo "Checking code formatting..."
+	@stylua --check lua/ plugin/ test/ validate.lua
+	@echo "✓ Code formatting check completed"
+
 # Clean up test artifacts
 clean:
 	@echo "Cleaning up..."

README.md

@@ -250,9 +250,26 @@ make test
 make test-unit          # Unit tests
 make test-integration   # Integration tests
 make validate           # Validation script
+make lint               # Run luacheck linting
+make format             # Format code with stylua
+make format-check       # Check code formatting
 make clean              # Clean artifacts
 ```
 
+### Code Formatting
+
+This project uses [stylua](https://github.com/JohnnyMorganz/stylua) for consistent code formatting:
+
+```bash
+# Format all Lua files
+make format
+
+# Check formatting without making changes
+make format-check
+```
+
+The formatting configuration is in `stylua.toml`.
+
 ## License
 
 MIT License - see [LICENSE](LICENSE) for details.

lua/mona/cache.lua

@@ -4,7 +4,7 @@ local utils = require("mona.utils")
 -- Cache configuration
 M.config = {
   cache_file = nil, -- Will be set in M.get_cache_file()
-  default_ttl = 300 -- 5 minutes default TTL
+  default_ttl = 300, -- 5 minutes default TTL
 }
 
 -- Get cache file path
@@ -14,11 +14,11 @@ M.get_cache_file = function()
       M.config.cache_file = vim.fn.stdpath("cache") .. "/mona_nvim_cache.json"
     else
       -- Fallback for testing
-      local home = (vim and vim.env and vim.env.HOME) or 
-                   (vim and vim.env and vim.env.USERPROFILE) or 
-                   os.getenv and os.getenv("HOME") or 
-                   os.getenv and os.getenv("USERPROFILE") or 
-                   "/tmp"
+      local home = (vim and vim.env and vim.env.HOME)
+        or (vim and vim.env and vim.env.USERPROFILE)
+        or os.getenv and os.getenv("HOME")
+        or os.getenv and os.getenv("USERPROFILE")
+        or "/tmp"
       M.config.cache_file = home .. "/.mona_nvim_cache.json"
     end
   end
@@ -34,7 +34,7 @@ M.load = function()
   if cache_loaded then
     return
   end
-  
+
   local cache_file = M.get_cache_file()
   if vim.fn and vim.fn.filereadable and vim.fn.filereadable(cache_file) == 1 then
     local ok, content = pcall(vim.fn.readfile, cache_file)
@@ -46,7 +46,7 @@ M.load = function()
       end
     end
   end
-  
+
   cache_loaded = true
 end
 
@@ -57,7 +57,7 @@ M.save = function()
     local cache_dir = vim.fn.fnamemodify(cache_file, ":h")
     utils.safe_mkdir(cache_dir, false)
   end
-  
+
   if vim.fn and vim.fn.json_encode then
     local ok, json = pcall(vim.fn.json_encode, cache)
     if ok then
@@ -69,56 +69,56 @@ end
 -- Get value from cache
 M.get = function(key)
   M.load()
-  
+
   local entry = cache[key]
   if not entry then
     return nil
   end
-  
+
   -- Check expiration
   if entry.expires and entry.expires < os.time() then
     cache[key] = nil
     return nil
   end
-  
+
   return entry.value
 end
 
 -- Set value in cache
 M.set = function(key, value, ttl)
   M.load()
-  
+
   cache[key] = {
     value = value,
     expires = ttl and (os.time() + ttl) or nil,
-    created = os.time()
+    created = os.time(),
   }
-  
+
   M.save()
 end
 
 -- Remove value from cache
 M.delete = function(key)
   M.load()
-  
+
   cache[key] = nil
   M.save()
 end
 
 -- Clear expired entries
 M.clean = function()
   M.load()
-  
+
   local now = os.time()
   local cleaned = false
-  
+
   for key, entry in pairs(cache) do
     if entry.expires and entry.expires < now then
       cache[key] = nil
       cleaned = true
     end
   end
-  
+
   if cleaned then
     M.save()
   end
@@ -133,28 +133,28 @@ end
 -- Get cache statistics
 M.stats = function()
   M.load()
-  
+
   local total = 0
   local expired = 0
   local now = os.time()
-  
+
   for _, entry in pairs(cache) do
     total = total + 1
     if entry.expires and entry.expires < now then
       expired = expired + 1
     end
   end
-  
+
   local file_size = 0
   if vim.fn and vim.fn.getfsize then
     file_size = vim.fn.getfsize(M.get_cache_file())
   end
-  
+
   return {
     total = total,
     expired = expired,
     active = total - expired,
-    file_size = file_size
+    file_size = file_size,
   }
 end
 
@@ -164,21 +164,21 @@ M.keys = {
   font_installed = function(family, font_type)
     return string.format("font:installed:%s:%s", family or "all", font_type or "default")
   end,
-  
+
   -- Font version
   font_version = function()
     return "font:version:latest"
   end,
-  
+
   -- Terminal detection
   terminal_type = function()
     return "terminal:detected"
   end,
-  
+
   -- Font file paths
   font_files = function(family)
     return string.format("font:files:%s", family)
-  end
+  end,
 }
 
-return M
+return M