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ckb-lua-vm

A project to help developers writing script in Lua on CKB-VM.

Build

make all-via-docker

Playground

There are a lot of tests located in 'tests' folder. Before running, please install ckb-debugger described in CI scripts. Here is a "hello,world" example:

make -C tests/test_cases hello_world

Usages

There are 2 ways to use this project:

  1. Embedded (Recommended)

Use build/libckblua.so as a dynamic library. See dylib.md for a detailed tutorial on how to use build/libckblua.so.

  1. Standalone

Use build/lua-loader as a script. Require hacking for further requirement.

Command Line Arguments

A couple of arguments may be passed to ckb-lua-vm. If no command line arguments is passed to ckb-lua-vm, ckb-lua-vm will run the script contained in cell data, which is assumed to be a valid exectuable lua file.

The following are the supported command line arguments. To test the ADDITIONAL_ARGUMENTS locally, we can run ckb-debugger --bin ./build/lua-loader.debug -- ADDITIONAL_ARGUMENTS

  • -e is used to evaluate some lua script. For example, running ckb-debugger --bin ./build/lua-loader.debug -- -e 'print("abcdefg")' will print out abcdefg in to console.
  • -f is used to enable file system access. For example, running ckb-debugger --bin ./build/lua-loader.debug -- -f would evaluate the main.lua file within the file system in the cell data.
  • -r is used to execute coded loaded from ckb-debugger. For example, running ckb-debugger ---read-file strings.lua --bin ./build/lua-loader.debug -- -r will execute the lua file strings.lua. Normally, ckb-lua-vm can not read files from local file system, we add this parameter (along with the --read-file parameter of ckb-debugger) to facilitate testing of running local lua files.