stylua -> EmmyLuaCodeStyle: config and doc

Author: alex-courtis

.editorconfig

@@ -4,9 +4,17 @@ root = true
 insert_final_newline = true
 end_of_line = lf
 
+[nvim-tree-lua.txt]
+max_line_length = 78
+
 [*.lua]
 indent_style = space
+max_line_length = 140
 indent_size = 2
 
-[nvim-tree-lua.txt]
-max_line_length = 78
+# EmmyLuaCodeStyle specific, see
+# https://github.com/CppCXY/EmmyLuaCodeStyle/blob/master/lua.template.editorconfig
+continuation_indent = 2
+quote_style = double
+call_arg_parentheses = always
+space_before_closure_open_parenthesis = false

.stylua.toml

@@ -10,7 +10,7 @@ Following are used during CI and strongly recommended during local development.
 
 Lint: [luacheck](https://github.com/lunarmodules/luacheck/)
 
-Style: [StyLua](https://github.com/JohnnyMorganz/StyLua)
+Style: [EmmyLuaCodeStyle](https://github.com/CppCXY/EmmyLuaCodeStyle) (`CodeCheck`)
 
 Language server: [luals](https://luals.github.io)
 
@@ -34,14 +34,14 @@ make lint
 
 ## style
 
-1. Runs stylua using `.stylua.toml` settings
+1. Runs CodeCheck using `.editorconfig` settings
 1. Runs `scripts/doc-comments.sh` to validate annotated documentation
 
 ```sh
 make style
 ```
 
-You can automatically fix stylua issues via:
+You can automatically fix `CodeCheck` issues via:
 
 ```sh
 make style-fix

CONTRIBUTING.md

@@ -5,7 +5,7 @@ all: lint style check
 #
 lint: luacheck
 
-style: stylua style-doc
+style: style-check style-doc
 
 check: luals
 
@@ -15,8 +15,8 @@ check: luals
 luacheck:
 	luacheck -q lua
 
-stylua:
-	stylua lua --check
+style-check:
+	CodeFormat check --config .editorconfig --diagnosis-as-error --workspace lua
 
 style-doc:
 	scripts/doc-comments.sh
@@ -28,7 +28,7 @@ luals:
 # fixes
 #
 style-fix:
-	stylua lua
+	CodeFormat format --config .editorconfig --workspace lua
 
 #
 # utility
@@ -43,5 +43,5 @@ help-check: help-update
 	git diff --exit-code doc/nvim-tree-lua.txt
 
 
-.PHONY: all lint style check luacheck stylua style-doc luals style-fix help-update help-check
+.PHONY: all lint style check luacheck style-check style-doc luals style-fix help-update help-check