luaromfs

luaromfs comprises:

• a utility mkrom, which compresses and optionally encrypts a directory hierarchy of files either as a binary file or a C file containing a static char array and associated metadata variables.
• a C library which extracts files from the ROM blob content.
• a Lua library which exposes the C functionality at a higher level, augmenting the package searchers so that require() finds Lua files within mounted ROM images.

Getting started

Requirements:

• Lua 5.3 development files (expected in /usr/include/lua5.3 and /usr/lib/lua5.3)
• zlib development files

Clone the repository and run make, which will build the library, utility and example, running the example as the last step:

# git clone https://github.com/Oozlum/luaromfs.git
# cd luaromfs && make

Final output:

Starting example...
This is internal_rom_src/foo/init.lua, which was embedded into the host application as a static C array.
This file was found and executed by Lua as a result of a call to require'foo'.

I will now attempt to mount from disk the file 'rom.bin' which should have been encrypted with the key 'MySecretKey'...

Mount succeeded.  I will now try to require'bar'...

This is rom_bin_src/bar/init.lua, which was loaded at runtime from the file rom.bin.
This file was found and executed by Lua as a result of a call to require'bar'.