.vim/after/ftplugin/cpp.vim

let b:ale_fixers = {
			\ 'cpp' : [
				\ 'clangtidy',
				\ 'clang-format',
				\ 'remove_trailing_lines',
				\ 'trim_whitespace'
				\ ]
			\ }

let b:ale_linters = {
			\ 'cpp' : [
				\ 'cc',
				\ 'ccls',
				\ 'clangcheck',
				\ 'clangd',
				\ 'clangtidy',
				\ 'clazy',
				\ 'cppcheck',
				\ 'cpplint',
				\ 'cquery',
				\ 'cspell',
				\ 'flawfinder'
				\ ]
			\ }

function! FindProjectRoot()
	let l:current_dir = expand('%:p:h')
	while l:current_dir != "/"
		if filereadable(l:current_dir . "/main.cpp")
			return l:current_dir
		endif
		let l:current_dir = fnamemodify(l:current_dir, ':h')
	endwhile
	return ""
endfunction

function! CompileProject(debug)
	let l:project_root = FindProjectRoot()
	if l:project_root == ""
		echo "main.cpp not found in any parent directory."
		return
	endif
	let l:main_file = l:project_root . "/main.cpp"

	let l:project_name = fnamemodify(l:project_root, ':t')
	let l:output_file = l:project_root . "/" . l:project_name

	let l:warning_flags = "-Wall -Weffc++ -Wextra -Wconversion -Wsign-conversion"
	let l:disable_extension_flags = "-pedantic-errors"
	let l:debug_flags = a:debug ? "-ggdb" : "-O2 -DNDEBUG"
	let l:standard_flag = "-std=c++20"

	let l:compile_cmd = 
				\ "g++" . " " .
				\ l:standard_flag . " " .
				\ l:warning_flags . " " . 
				\ l:disable_extension_flags . " " .
				\ l:debug_flags . " " . 
				\ l:main_file . " " .
				\ "-o" . " " . l:output_file

	" Run the compile command and capture the output
	let l:output = system(l:compile_cmd)

	" Check if the compilation was successful
	if v:shell_error
		echo "Compilation failed:"
		echo l:output
	else
		echo "Compilation successful. Output: " . l:output_file
	endif
endfunction

function! RunProject()
	let l:project_root = FindProjectRoot()
	if l:project_root == ""
		echo "Project root not found."
		return
	endif

	let l:project_name = fnamemodify(l:project_root, ':t')
	let l:output_file = l:project_root . "/" . l:project_name

	if !filereadable(l:output_file)
		echo "Output file not found. Please compile the project first."
		return
	endif

	let l:run_cmd = "!" . l:output_file
	execute l:run_cmd
endfunction

command! -nargs=0 Compile call CompileProject(1)
command! -nargs=0 CompileRelease call CompileProject(0)
command! -nargs=0 Run call RunProject()