debug with system lua 5.1

[densechen]

how can i make it debug with system lua 5.1?

[tan-wei]

I can give you a solution. But I'm not sure whether it is the best.

If you want to debug a lua script located in the ${workspaceFolder}, e.g named test.lua, create a lua debug_script.lua (from LRDB):

lrdb = require("lrdb_server")
lrdb.activate(21110) --21110 is using port number. waiting for connection by debug client.

--debuggee lua code
dofile("test.lua");

lrdb.deactivate() --deactivate debug server if you want.

Then the launch.json:

{
    "version": "0.2.0",
    "configurations": [
        {
            "type": "lrdb",
            "request": "launch",
            "name": "Lua Launch",
            "program": "lua5.1.exe", // here is your system lua location
            "cwd": "${workspaceFolder}",
            "stopOnEntry": false,
            "useInternalLua": false,
            "args": ["debug_script.lua"],
        }
    ]
}

It works for me.

Maybe a better solution is create a batch file which can input with ${file} in args, and change the program with it, then you can debug any script without adding any codes.
I don't know if any easy way. Maybe @satoren can give you the best solution which is elegant.

[tan-wei]

A better solution:

• Adding an executable Lua script in PATH, named lrdb

#!/usr/bin/env lua

if not arg[1] then
	error("Please input a file name")
end

local lrdb = require("lrdb_server")
lrdb.activate(21110) --21110 is using port number. waiting for connection by debug client.

--debuggee lua code
dofile(arg[1]);

lrdb.deactivate() --deactivate debug server if you want.

Then in launch.json:

{
    "version": "0.2.0",
    "configurations": [
        {
            "type": "lrdb",
            "request": "launch",
            "name": "Lua Launch",
            "program": "lrdb",
            "cwd": "${workspaceFolder}",
            "stopOnEntry": false,
            "useInternalLua": false,
            "args": ["${relativeFile}"],
        }
    ]
}

Now you can debug any lua script in your VS Code without adding anything.