Clink script for having a nice command prompt with git branch support and home directory aliasing

clink_prompt.lua

function set_prompt()
	-- Get various env vars
	local username = clink.get_env("USERNAME")
	local computername = clink.get_env("COMPUTERNAME")
	local user_home = clink.get_env("USERPROFILE")
	local current_directory = clink.get_cwd()
	
	
	-- Initial value
	local toprompt = ""..
	username..
	"@"..
	computername.." "..
	""..
	current_directory:gsub(user_home, "~")

	-- Get current git branch
    for line in io.popen("git branch 2>nul"):lines() do
        local m = line:match("%* (.+)$")
        if m then
            toprompt = toprompt.." ["..m.."] "
            break
        end
    end

	-- Set prompt and add suffix
	clink.prompt.value = toprompt.." $ "

	return false;
end

clink.prompt.register_filter(set_prompt, 420)