Embedding modules

steve64

I would like to create a project with multiple .lua modules in the main folder and picture files in a 'data' subfolder.
Can I compile this project to an EXE?
The rtc tool seems to admit only one directory for embedding files in the EXE, so if I pass 'data' it can not find the code modules besides the main script.

Samir

Hi Steve,

Yes it's rather easy. Let's take an example :

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Here we have a folder Lua Project\ that contains all the Lua scripts needed, and a subfolder data\ which contains other files and even subdirectories.

To compile mainscript.lua (our main Lua script, that will be first executed) with the same files/directory structure we have two possibilites :

Open a console prompt and type the following commands :

cd "D:\Lua Project"
rtc mainscript.lua .

In this case, we go to the root directory of our project and tell rtc to use the current directory as embedded content (the dot)

Alternatively, you can give fullpaths to rtc from anywhere :

rtc "D:\Lua Project\mainscript.lua" "D:\Lua Project"

steve64

Samir this is what I tried, but is seems not working in my project
I want to be able to load the pictures inside the 'data' subfolder (using
pic:load(embed.File('myimage.png'))
and at the same time to load modules at the main folder level using
require 'mymodule'
I suspect that the images are not found

Samir

The directory structure is preserved inside the executable, in a virtual file system.

So you should use ui.Picture(embed.File("data\myimage.png"))

steve64

many thanks, now it works fine!!!

Samir

Great ! 👍🏻

steve64

I'm facing a strange issue.
I compiled my app as exe using a command like:

%lua_path%\rtc -i .\panel.ico -o %lab_path%\myapp.exe -lnet -lwebview -ljson -lsysutils -lc -w main.lua .

The app ia made of main.lua and some other .lua files (that I assume automatically inserted by rtc).
If I click on myapp.exe from Windows Explorer the app works fine.
If I try to run the same muapp.exe from a Windows command prompt, my additional .lua files are not found with a message like: module 'xyz' not found: ,,.
It seems they are searched as DLL in this case.

Samir

I cannot reproduce this...
I have tested this with embedded .lua files in the same directory and it sub-directories and it works as expected.

How is your folder structure and how do you require() for submodules ?